СЫРЬЕ И СПОСОБ ПОЛУЧЕНИЯ СЫРЬЯ

Изобретение относится к получению сырья для производства керамических изделий с положительным температурным коэффициентом электрического сопротивления (ПТК-керамики) методом инжекционного формования. Технический результат изобретения - получение сырья с низким содержанием примесей, что позволяет сохранить в отформованном изделии необходимые электрические свойства. Керамический наполнитель, превращающийся после обжига в ПТК-керамику, смешивают с матрицей на основе термопластов, получают гранулят, который используют для инжекционного формования. Смешивание матрицы и наполнителя осуществляют в валковой мельнице. При осуществлении способа используют инструменты с низкой степенью истирания, так что получается сырье, содержащее ≤10 ч/млн металлических примесей, вызванных истиранием. Для этого поверхности инструментов, которые могут контактировать с наполнителем, содержат твердое покрытие на основе карбида вольфрама. В качестве базовых материалов для получения керамики используют BaCO, NiO, MnSOи ...

НОВЫЙ СПОСОБ ПОЛУЧЕНИЯ ЦЕМЕНТИРОВАННОГО КАРБИДНОГО ИЛИ КЕРМЕТНОГО МАТЕРИАЛА

СПОСОБ ИЗГОТОВЛЕНИЯ ТВЕРДООКСИДНОГО ТОПЛИВНОГО ЭЛЕМЕНТА

... 1. Способ изготовления твердооксидного топливного элемента (1), имеющего электролит (10) трубчатой формы, на который наносят по меньшей мере один располагаемый с его внутренней стороны (внутренний) электрод (11) и по меньшей мере один располагаемый с его наружной стороны (наружный) электрод (12), заключающийся в выполнении по меньшей мере следующих стадий: подготавливают формовочный стержень (13), на который наносят по меньшей мере один образующий межсоединение материал (14) и внутренний электрод (11), формовочный стержень (13) помещают в литьевую форму (25а, 25b), из литьевой массы (10а) литьем под давлением формуют электролит (10) и удаляют формовочный стержень (13) по типу метода литья с разовым литейным стержнем. ! 2. Способ по п.1, отличающийся тем, что формовочный стержень (13) удаляют термическим методом, предпочтительно по типу метода литья с выплавляемым литейным стержнем. ! 3. Способ по п.2, отличающийся тем, что формовочный стержень (13) выполнен из пластмассы, при этом термический ...

Механизм подпрессовки литейных машин

Funktionselement sowie Verfahren zu seiner Herstellung

Um Funktionselemente (1) wie etwa eine Drucktaste aus einem keramischen Material durch Formspritzen des Grünlings und anschließendes Sintern herzustellen, sind zusätzliche Maßnahmen, abweichend von der Verarbeitung vom Kunststoff, notwendig, um damit entweder eine zweite Spritzkomponente oder eine Beschichtung zu verbinden, um die wahlfreien lichtdurchlässigen Motiv-Bereiche (4) auf einfache Art und Weise herzustellen.

Dünnwandiges Bauteil aus hydraulisch erhärtetem Zementsteinmaterial sowie Verfahren zu seiner Herstellung

The invention relates to a thin-walled component with a fine cement paste matrix and at least one steel wool mat that is pressed together and embedded in the fine cement paste matrix. The invention also relates to a method for producing a thin-walled component, whereby at least one steel wool mat is pressed together in a perpendicular position with respect to the main extension thereof, injected with a fine cement suspension, surrounded and the suspension is hardened.

Process for producing an extrusion moulding and material composition for this

Process for producing extrusion mouldings and material composition for these, in which a composition of flake graphite, bonding clay and refractory material is extruded from a screw extruder into a mould in order to form a cylindrical extrusion moulding. The mould contains a coaxial core, which terminates shortly before the extrusion nozzle of the screw extruder, so that after extrusion the extrusion moulding has a longitudinal bore closed at one end, transverse bores being subsequently introduced through the extrusion moulding transversely to the bore in the region of the closed end. Alternatively the coaxial core can be connected to the extruder screw so that it forms an axial passage bore in the extrusion moulding when the latter is extruded.

KERAMISCHER STIFTHEIZER MIT INTEGRIETEN ANSCHLUSSKONTAKTEN UND VERFAHREN ZU DESSEN HERSTELLUNG

Superhard constructions & methods of making same

METHOD OF AND APPARATUS FOR MAKING AND ATTACHING HANDLES FOR CUPS, POTS OR THE LIKE

... 1,274,468. Injection moulding handles for cups &c. HEINRICH ZEIDLER K.G., and H. SELTMANN. 12 June, 1969 [12 June, 1968], No. 29901/69. Heading B5A. An injection moulded handle 8 for a cup &c. is made from a ceramic material in the form of a paste which is injected through a passage 5 into a mould 10, the passage 5 having a throttle cross-section which is smaller than the smallest cross-sectional dimension of the handle. The handle 8 is removed from the mould after injection, attached to a cup and the two completely dried together. After injection, mould halves 11, 12 are opened, and the handle 8 is gripped by arms 17, 18 having recesses corresponding to the shape of the handle. A cutter 14 then moves upwardly to sever the handle from the injected material, and the arms 17, 18 are rotated through 90 degrees about a shaft 20. An end cutter 19 shapes the ends of the handle. Further rotation of the arms 17, 18 brings the handle into position for attachment to the cup 9. Suction means may be ...

MANUFACTURE OF CERAMIC WARE

... 1318187 Injection-moulding of ceramics SERVICE (ENGS) Ltd 27 July 1970 [2 Aug 1969 27 Dec 1969 25 Feb 1970] 38815/69 62995/69 and 9072/70 Heading B5A Apparatus for injection-moulding moist clay to form ceramic articles e.g. cup-handles of earthenware or china comprises two mould halves 18, Fig. 2, defining a mould cavity 27, Fig. 3, a chamber 42 having an outlet at nozzle 43 and able to receive a charge of clay and means e.g. plunger 54 to fluidize and inject the clay into cavity 27. Mould halves 18 are mounted on platens 20 having heaters 22 and being slidable on rods 24. Levers 28 are pivoted at 34 to arms 35 on platens 20 and at 30 to machine frame 10 and carry air diaphragm motors 38, the piston rods 37 of which are tied together and to the machine frame 10 by rod 39. Injection block 44, Fig. 3, is pivotable at shafts 46 between injection position of Fig. 3 and 90 degrees anticlockwise for charging and article removal. Block 44 contains chamber 42 into which plunger 54 extends for injecting ...

A prop, a method of generating a prop force and a method of pressure curing concrete

Process and device to manufacture, in a mould, a body starting from an aqueous and fibrous mixture.

SPRAYING UNIT WITH ROTARY VALVE FOR THE PROCESSING OF FUSIBLE MATERIALS

FORMS WITH POROUS MOULDING FORM AND PROCEDURE THEREBY

EINSPRITZAGGREGAT FÜR SPRITZGIESSMASCHINEN

DEVICE FOR MAKING SPRITZLINGEN OF UNGEBRANNTER CERAMIC MASS

SCHALUNG ZUR VERTIKALEN HERSTELLUNG VON FLÄCHIGEN BETONFERTIGTEILEN

PROCEDURE FOR FORMING DENTALEN RESTORATIONS AND DEVICE TO IT

THIN-WALLED CONSTRUCTION UNIT FROM HYDRAULICALLY CONFIRMING HARDENED CEMENT PASTE MATERIAL AS WELL AS PROCEDURE FOR ITS PRODUCTION

Ceramic igniters

Compression/injection molding of polymer-derived fiber reinforced ceramic matrix composite materials

METHOD FOR MOLDING DENTAL RESTORATIONS AND RELATED APPARATUS

... ▓▓ The present invention is concerned with a process for the▓formation of dental restorations from glass-ceramic materials and▓the resulting dental restorations. In this invention, a dental▓restoration is prepared by placing a glass-ceramic material in a▓heat-pressure deformable crucible. Heat is then applied to the▓crucible in order to bring the glass-ceramic material to a working▓range at temperatures above its liquidus temperature. The crucible▓in which the glass-ceramic material is placed has heat-pressure▓deformation properties which are matched to the working temperature▓of the glass-ceramic material being heated. The heat deformation▓properties of the crucible must be such that when the glass-ceramic▓material in the crucible is in the working range the crucible is▓heat-pressure deformable without rupturing. Once the glass-ceramic▓material is heated to its working temperature, the crucible is▓brought into contact with a mold having a preformed cavity therein,▓the cavity being in the ...

CERAMIC-ENCAPSULATED THERMOPOLYMER PATTERN OR SUPPORT WITH METALLIC PLATING

A method for fabricating a ceramic component is disclosed. The method may comprise: 1) forming a polymer template having a shape that is an inverse of a shape of the ceramic component, 2) placing the polymer template in a mold; 3) injecting the polymer template with a ceramic slurry, 4) firing the ceramic slurry at a temperature to produce a green body, and 5) sintering the green body at an elevated temperature to provide the ceramic component.

FROZEN SHAPED CONCRETE AND CLAYS

In a method and composition for manufacturing the products that made of cement, concrete and clay materials, it is known to freeze the materials before removing them from their molds. The freezing action is providing temporary hardness for the mixture of the materials to be protected against deforming during its removal from the mold. For protecting the properties of the composition in subfreezing temperatures and during the setting time in the freezer, use of additives product such as PolarSet is allowed. PolarSet allows the continuum chemical reaction within the frozen mixture while been kept in the freezer for hours in the early stage of hardening.

METHOD OF MANUFACTURING A CERAMIC CORE FOR A BLADE, CERAMIC CORE AND BLADE

Le procédé de fabrication d'un noyau céramique pour aube mobile comportant une partie inférieure formant un corps de noyau, une partie supérieure formant une baignoire et un ensemble de tiges permettant de maintenir la partie supérieure et la partie inférieure solidaires, comporte : · une étape d'enduit des tiges par une matière ayant un point éclair inférieur à 1000°C; · une étape de positionnement des tiges dans un moule; · une étape de moulage des parties supérieure et inférieure par une injection céramique; · une étape de cuisson du noyau céramique.

SYSTEM AND PROCESS FOR MOLDING OF PARTS MADE OF FIBER CEMENT

A system and a method for molding a part from fiber cement, or fibrocement, slurry are provided. The molding is preferably made by pressure injection of the slurry. The slurry comprises cementitious material, additives, fibers and water. The fibers can include polypropylene, polyethylene, polyacrylic, cellulose, and/or asbestos fibers. First and second molding sections define, at least partially, a chamber. The second molding section comprises at least one evacuating channel. The system includes a slurry inlet communicating with the chamber, for inserting the slurry. A bladder covers the first molding section, the bladder being inflatable for compressing the slurry between the bladder and the second molding section. A filter covers the second molding section and allows water contained in the slurry to pass through while retaining the cementitious material and fibers within the chamber. A pressurized fluid inlet port communicates with at least one conduit for inflating the bladder.

PRESSURE CASTING MOLD FOR PRODUCING A CAST PART

Pressure casting mold for producing a cast part which is part of a one-piece toilet comprising a body, a water ring and a tank, wherein the cast part as one-piece component comprises the water ring and the tank which is open on the top side, wherein the pressure casting mold consists of at least five mold parts that are detachably connectable to one another, namely of a bottom part, two side parts each with a molded-on front wall half, a rear wall, and a cover part, wherein the mold parts delimit a cavity which corresponds to the outer shape of the cast part, and wherein, on the bottom part, a wedge element is provided, which delimits the inner shape of the water tank at least in some sections.

Dispositif pour le faconnage par pression de pièces présentant un évidement.

Procédé de moulage par injection d'un corps à partir d'un mélange aqueux et fibreux à base de liant hydraulique et dispositif pour la mise en oeuvre de ce procédé

Verfahren zum Herstellen von Formstücken aus Faserzement und Vorrichtung zur Durchführung des Verfahrens

Verfahren und Vorrichtung zur Formung keramischer Körper durch Einformen keramischer Masse in Formen

Verfahren und Vorrichtung zur Herstellung von Keramikteilen

Casting concrete boxes in one operation - has special mix which flows upward through mould with air evacuated and mix compacted

The constituents for the mix are measured out and passed along a screw conveyor. This dry mix is stored and the correct quantity for a casting measured out and mixed with water. The wet mix is then injected by a screw pump into the bottom (23) of a mould. This comprises outer (24, 25, 26) and inner (29, 30, 31) panels, with a space (38) between, forming a complete box shape. Each inner face has a space (27) behind, connected to a compressed air supply (28). As the mix rises in the mould a vacuum pump (33) on top removes the air. When full, the compressed air enters to compact the mix.

Moule pour la fabrication d'articles en amiante-ciment

Vorrichtung zum Herstellen von Formstücken aus Faserzement, insbesondere Asbestzement

Procédé pour le moulage sous pression de produits à partir de mélanges de fibres et de liants et dispositif pour la mise en oeuvre de ce procédé

Verfahren zur Herstellung keramischer Formlinge und Form zur Durchführung des Verfahrens

Process for the production of prefabricated construction elements and device for carrying out the process

Binder for injection molding composition.

L’invention concerne un liant pour composition de moulage par injection comprenant: de 35 à 50% vol. d’une base polymérique, de 40 à 55% vol. d’un mélange de cires, et environ 10% vol. d’un surfactant, dans lequel la base polymérique contient des copolymères d’éthylène et d’acide méthacrylique ou acrylique, ou des copolymères d’éthylène et d’acétate de vinyle, ou des copolymères d’éthylène comprenant un anhydride maléique ou un mélange de ces copolymères, ainsi que du polyéthylène, du polypropylène et une résine acrylique.

Binder for injection molding composition.

Linvention concerne un liant pour composition de moulage par injection comprenant: de 35 à 50 % vol. dune base polymérique, de 40 à 55 % vol. dun mélange de cires, et environ 10% vol. dun surfactant, dans lequel la base polymérique contient des copolymères déthylène et dacide méthacrylique ou acrylique, ou des copolymères déthylène et dacétate de vinyle, ou des copolymères déthylène comprenant un anhydride maléique ou un mélange de ces copolymères, ainsi que du polyéthylène, du polypropylène et une résine acrylique.

Procedure for the production of construction units from fiber-reinforced mineral bound building materials.

Injection aggregate for injection moulding machines.

A method of manufacturing an object of a shape selected from ceramic or refractory material.

Le procédé de fabrication dun objet (1) dune forme choisie en matière céramique ou réfractaire (4) comprend les étapes de formation dun moule temporaire en une matière temporaire (2) susceptible dêtre enlevée par traitement thermique bien en dessous du point de fusion de la matière céramique ou réfractaire (4), ce moule temporaire (2) ayant la forme dune enveloppe de lobjet (1) à fabriquer; formation dans cette matière temporaire (2) du moule temporaire (2) de forme creuse destinée à former lobjet (1) de forme choisie en matière céramique (1); placement du moule temporaire (2) dans un moule à injection qui entoure le moule temporaire (2); remplissage de ladite forme creuse dune poudre submicronique de la matière céramique ou réfractaire (4) par injection sous pression de la poudre; traitement thermique pour enlever ladite matière temporaire (2) suivi dun traitement thermique optionnel pour stabiliser la poudre en un corps; frittage à haute température en dessous de la température de fusion ...

Method of making a dimensionally stable accurateconcrete workpiecesconcrete workpiece and.

Das erfindungsgemässe Verfahren zum Herstellen eines masshaltigen Betonwerkstücks ist dadurch gekennzeichnet, dass für die Herstellung des Betonwerkstücks eine vollverschlossene in einer vorbestimmten Geometrie masshaltigen Form vollständig mit Frischbeton verfüllt wird, während der anschliessenden und ungestört verlaufenden Hydratation eine vorbestimmte Temperaturverteilung der den hydratisierenden Beton umschliessenden Wände der Form gefahren und das Betonwerkstück bei einer Druckfestigkeit von mehr als 10 MPa entformt wird, wobei das Grösstkorn des Frischbetons einen Durchmesser von weniger als 20% der kleinsten Abmessung der Form aufweist. Es wird insbesondere die Temperaturverteilung der Wände der Form derart eingestellt, dass die Temperaturverteilung im hydratisierenden Beton vom Beginn der Hydratisierung bis zur Entschalung innerhalb eines erlaubten Intervalls von 15 °C, bevorzugt von 10 °C, besonders bevorzugt von 5 °C liegt. Durch das Verfahren können Betonwerkstücke hergestellt ...

Method and apparatus for the production of ceramic components.

Verfahren zur Herstellung von Keramikbauteilen (2), insbesondere von Keramikbauteilen (2) mit Ausnehmungen und/oder Hohlräumen (21), wobei mindestens ein gesintertes Keramikteil (1) vorliegt. Um die Handhabbarkeit von Keramikbauteilen (2) zu verbessern, ist erfindungsgemäss vorgesehen, dass das gesinterte Keramikteil (1) einen Träger oder Tragabschnitt (3) umfasst, der bei der weiteren Verarbeitung von dem wenigstens einen Keramikbauteil (2) entfernt wird.

Procedure for the production of a einstückigen set element of a combing set of a combing machine.

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines einstückigen Garniturelementes (5a, 5b, 5c) einer Kämmgarnitur (5) einer Kämmmaschine, mit mehreren, nebeneinander im Abstand zueinander angeordneten Zähnen (Z), deren Fussbereich (7) in einem gemeinsamen Steg (8) mündet. Um eine einfachere und massgenaue Herstellung einer Kämmgarnitur auch für hohe Zahndichten zu erhalten, wird vorgeschlagen, dass das Garniturelement (5a, 5b, 5c) in seiner Endform durch Pulverspritzgiessen (PIM) hergestellt wird.

Procedure for the production of a einstückigen combing set of a combing machine.

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer einstückigen Kämmgarnitur (5) einer Kämmmaschine mit mehreren, nebeneinander im Abstand zueinander angeordneten Zähnen (Z), deren Fussbereich (7) in einem gemeinsamen Steg (8) mündet. Um eine einfachere und massgenaue Herstellung einer Kämmgarnitur auch für hohe Zahndichten zu erhalten, wird vorgeschlagen, dass die Kämmgarnitur (5) in ihrer Endform durch Pulverspritzgiessen (PIM) hergestellt wird.

Article multicolore en cermet et/ou céramique et son procédé de fabrication.

L'invention concerne un procédé de fabrication d'un article multicolore en cermet et/ou en céramique, realisé par injection d'au moins deux matières (2,3) de couleurs distinctes, ledit article comprenant un décor en relief d'une couleur différente du reste de l'article, ledit décor étant réalisé par ablation laser après injection des deux matières. L'invention concerne également un tel article, notamment un composant horloger d'habillage ou du mouvement, en particulier une lunette ou une couronne.

Procédé d'injection d'un article décoré.

La présente invention se rapporte à un procédé d'usinage par ablation laser ou par micro-fraisage d'une structure (5) en relief et/ou en creux sur une empreinte (4) d'un moule (3) d'injection. La présente invention se rapporte également à un procédé de fabrication d'un article en céramique ou en cermet par injection utilisant ledit moule (3) d'injection pour réaliser un article, et en particulier une lunette de montre, décoré directement lors de l'injection.

Procédé de fabrication d'une pièce en matériau dur avec un insert en polymère.

L'invention concerne un procédé de fabrication d'une pièce d'ornement, par exemple d'horlogerie, de bijouterie ou de téléphonie, notamment une couronne de montre, la pièce comprenant au moins en partie un matériau dur présentant une dureté Vickers supérieure à 1000 HV, caractérisé en ce que le procédé comprend les principales étapes suivantes : une étape de réalisation d'un précurseur à partir d'un mélange d'au moins un matériau en poudre avec un liant, une étape de réalisation d'un insert (11) en matériau polymère, l'insert (11) ayant au moins en partie une forme en négatif de celle souhaitée pour au moins une partie de la pièce, une étape de surmoulage du précurseur sur l'insert (11) en matériau polymère par injection dans un moule afin de former un corps vert (10), et une étape de frittage dudit corps vert (10) afin de former un corps de la future pièce dans ledit matériau dur.

Article en cermet et/ou céramique par injection d'au moins deux matières différentes.

L'invention concerne un procédé de fabrication et un article en cermet et/ou en céramique, et en particulier une lunette (1) d'une pièce d'horlogerie, le procédé comprenant l'injection d'au moins deux matières (2,3) de compositions distinctes, ledit article comportant une partie (4) où les deux matières (2,3) se superposent et sont imbriquées l'une dans l'autre.

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРОВ И ПОЛУЧЕННЫЕ НА ЕГО ОСНОВЕ КАТАЛИЗАТОРЫ

Изобретение предлагает способ получения катализаторов путем порошкового инжекционного формования и полученные на его основе катализаторы, где катализаторы изготавливают путем приготовления керамического состава с регулируемыми температурой реологическими свойствами, содержащего каталитические компоненты, нагрева данного порошкового состава вплоть, по меньшей мере, до температуры перехода в текучее состояние, формования образца путем впрыскивания текучего порошкового состава в инжекционную форму с последующим охлаждением инжектированного порошкового состава ниже температуры перехода в текучее состояние, отсоединения формованного образца и спекания формованного образца с образованием керамического катализатора. Альтернативно может быть исходно сформована керамическая структура с последующим покрытием керамической структуры одним или несколькими каталитическими соединениями.

Microjet filling of pressurized ceramic mold casting

Dispositif de remplissage par microjets pour le coulage sous pression en céramique L'invention concerne un dispositif permettant de remplir les moules dans le procédé de coulage sous pression en évitant les inconvénients d'une trace inesthétique et la présence d'une fissure de retrait sur les pièces finies à l'endroit de la nourrice. Il est constitué d'une buse (1) en métal ou de la même matière que celle du moule permettant à la barbotine amenée par la tubulure (3) jusqu'à la chambre (6) d'être injectée dans le moule (4) par les canaux (5) sous forme de microjets. Les canaux sont des trous ou des fentes (9) pratiquées soit dans le corps de la buse (1) soit dans une pastille amovible (10) vissée dans la buse (1) soit à même le moule. Le dispositif selon l'invention est particulièrement destiné au remplissage des moules dans le procédé de coulage sous pression en céramique.

Procédé et dispositif de moulage par injection de pièces en matière céramique.

L'invention concerne l'industrie du moulage par injection. Un moule 1 comporte deux parties mobiles 2, 3 et une cavité de moulage 8. La dose de matière introduite dépasse le volume strictement nécessaire pour le moulage, et l'excès de matière est éjecté hors du moule par un effet de matriçage obtenu en rapprochant les parties de moule l'une contre l'autre, en position finale de moulage, après avoir fermé le canal d'entrée au moyen d'un obturateur 7, associé par exemple à une vis sans fin d'injection 6, mobile axialement. On exerce un effet de compression différenciée au sein de la matière malléable en cours de mise en forme, aux endroits de la cavité de moulage 8 correspondant aux zones de bordure 11, 11a, de la pièce moulée particulièrement sujettes à des risques d'irrégularites de retrait à la cuisson. Application au moulage de pièces en matière céramique.

Manufactoring process of ceramic articles and installation for its implementation

SLIP CASTING APPARATUS

Tool and method for producing a workpiece made of a composite material by means of a liquid

Improvements with the moulding of ceramic articles

PROCESS AND MACHINE OF MOULDING BY INJECTION TO MANUFACTURE PARTS MOULEES OUT OF CERAMIC MATERIAL

Process for manufacturing a hollow ceramic product with an appendage, and associated device

Procédé pour la fabrication simultanée du corps creux avec un appendice d'un produit en céramique, notamment d'une tasse avec anse, caractérisé en ce qu'on introduit de la barbotine par coulage sous pression dans un moule poreux comportant au moins trois parties, dont la première partie constitue un mandrin support du corps creux, et les deuxième et troisième parties constituent les deux demi-parois latérales de formation du corps, le plan de joint de ces deux parties étant dans le plan de l'appendice, et en ce qu'on retire les deuxième et troisième parties, l'eau ayant été évacuée à travers les parois de ce moule, sous l'effet de la pression de coulage, le produit restant sur la troisième partie. L'invention a également pour objet le dispositif associé.

METHOD OF MANUFACTURING A CORE FOR MOLDING A BLADE

L'invention concerne un procédé de fabrication d'un noyau pour le moulage d'une aube d'une turbomachine, comprenant des étapes consistant à : - découper au moins un motif d'évidement (41, 42) dans une feuille de céramique(1) souple ; - disposer la feuille de céramique (1) découpée dans un moule de manière à mettre en forme la feuille de céramique (1) ; - chauffer le moule ; - compresser la feuille de céramique (1) à l'intérieur du moule ; - fritter la feuille de céramique (1) de manière à rigidifier la feuille de céramique (1).

METHOD OF INJECTING A SUSPENSION LOADED IN A FIBROUS TEXTURE AND METHOD OF MAKING A COMPOSITE MATERIAL PART

Moulding machine using free flowing material - has movable fluidisation air pipe sealing material inlet into chamber

콘크리트 패널 제조방법

... 본 발명은 콘크리트 패널 제작 시에 콘크리트 패널 전면에 전면일자형으로 문양, 칼라문양, 음각,양각을 자유로이 표현할 수 있는 콘크리트 패널 제조방법을 제공하는 것을 기술적 과제로 한다. 본 발명의 콘크리트 패널 제조방법은 전술한 과제를 해결하기 위해, 절토부 사면과 인장재에 의해 체결되는 콘크리트 패널의 제조방법으로서, 콘크리트 패널의 전면에 표현하고자 하는 모양이 상부에 형성된 하부 몰드(10)를 형성하는 단계(s100); 상기 하부 몰드의 상부에 상하방향으로 관통되도록 형성되는 중간 몰드를 설치하고 상기 중간 몰드의 내부에 철근체를 설치하는 단계(s200); 상방으로 돌출되도록 보강부 형성부가 형성되고 상기 보강부 형성부의 상부에 콘크리트 주입구가 형성된 상부 몰드를 상기 중간 몰드의 상부에 설치하는 단계(s300); 상기 상부 몰드에 형성된 관통공을 통해 콘크리트를 타설하는 단계(s400)로 이루어지는 것을 특징으로 한다. 본 발명은 전술한 콘크리트 패널 제조방법에 의해 후면에 보강부를 구비하는 콘크리트 패널 제조과정에서 전면에 칼라문양, 음각, 양각 등을 용이하게 표현하는 것이 가능하게 된다.

UNIT OF INJECTION FOR THE PROCESSING OF FUSIBLE MATERIALS

método de fabricação de coroa primária de cerâmica e coroa primária de cerêmica fabricada pelo mesmo

Injection molding apparatus and injection molding method

An injection molding apparatus including a mold, an injection device and a gas supply device is provided. The injection device is adapted to inject a ceramic powder material into the mold. The gas supply device is adapted to provide a gas into the mold to form a cavity in the ceramic powder material by the gas. In addition, an injection molding method is also provided.

INJECTION MOLDED PTC-CERAMICS

An injection molded body includes a ceramic material with a positive temperature coefficient containing less than 10 ppm of metallic impurities. A method for producing the injection molded body includes providing a feedstock for injection molding containing less than 10 ppm of metallic impurities, injecting the feedstock into a mold, removing a binder, sintering the molded body, and cooling the molded body.

Manufacture of complex shaped Cr3C2/Al2O3 components by injection molding technique

The purpose of this invention is to manufacture complex shaped Cr3C2/Al2O3 components efficiently with effective cost. Chromium carbide, which is quite chemically inert at elevated temperature, is added into an alumina matrix for toughening purposes. Chromium carbide and alumina ceramic powders are mixed with binders to form a solidified suspension. The suspension is then crushed, heated, and injected into green products. Controlled solvent and thermal debinding processes are followed before performing pressureless sintering. Samples are sintered in pre-treated argon gas with minimum oxygen partial pressure, or in vacuum for controlling the phase stability and microstructure for tailoring mechanical properties. The processing parameters for injection molding, the composition design of binders and ceramic composites, and the techniques for controlling the phase transformation of chromium carbide are developed. A near-net shape complex component with minimum after machining can be manufactured ...

Method and binder for use in powder molding

An improved binder is mixed with powder to form feedstock for molding. The binder includes a first component which is soluble in water and a second component which is insoluble in water. The two binder components are miscible with each other in a liquid state. The two binder components form a uniform heterogeneous mixture when mixed in a liquid state. The binder is mixed with a suitable powder to form the feedstock. The feedstock is molded to form a compact. Polymer units of the binder are cross linked after the compact has been formed. The cross linking of the polymer units of a component of the binder is accomplished by exposing the compact to ultraviolet radiation or by the use of a catalyst. The compact is partially debound by exposing the compact to water, that is, to a water based solvent. Thereafter, the compact is further debound to remove the component which is insoluble in water. The powder is then sintered to form an article.

Method and apparatus for molding clay pigeons and the like

An injection molding machine includes complementary mold members which cooperate to present a mold cavity in the shape of a clay pigeon or other articles. An injection passage leading to the mold cavity receives a slidable pin of smaller diameter than the passage. The pin has a tapered tip which, when the pin is extended by a power cylinder, seats in an outlet opening of the passage to block the opening in a manner to prevent the formation of a sprue on the part. The pin is heated along with a surrounding sleeve to maintain the material in the passage in a molten state and to assure proper release of the part from the mold. When the pin is retracted, molding material is able to flow around it, through the injection passage, and into the mold cavity.

PRESSURE FORMING OF METAL AND CERAMIC POWDERS

A method of pressure forming a brown part from metal and/or ceramic particle feedstocks includes: introducing into a mold cavity or extruder a first feedstock and one or more additional feedstocks or a green or brown state insert made from a feedstock, wherein the different feedstocks correspond to the different portions of the part; pressurizing the mold cavity or extruder to produce a preform having a plurality of portions corresponding to the first and one or more additional feedstocks, and debinding the preform. Micro voids and interstitial paths from the interior of the preform part to the exterior allow the escape of decomposing or subliming backbone component substantially without creating macro voids due to internal pressure. The large brown preform may then be sintered and subsequently thermomechanically processed to produce a net wrought microstructure and properties that are substantially free the interstitial spaces.

Arthroscopic devices and methods

An arthroscopic or other surgical cutter has features which facilitate fabrication by ceramic molding. The arthroscopic cutter includes a cutter body having a longitudinal axis and a window, an interior channel, and a plurality of cutting edges extending radially outwardly from an outer surface thereof. The features include non-helical, longitudinally aligned cutting edges, controlled thicknesses of the cutting edges, controlled heights of the cutting edges, controlled areas of the windows, controlled diameters of the internal channels, controlled rake angles of the cutting edges, and other parameters.

MOLD AND MOLDING PROCESS OF CERAMIC BY USING IT

PURPOSE:To obtain the excellent molded object having good mold release characteristics and no crack nor deformation on its outer surface by forming a part of the molding surface of an unpermeable mold from the material having the contact angle of 80 deg. or larger with water. CONSTITUTION:In the mold composed of an unpermeable mold or the combination of a permeable mold and the unpermeable mold, a part of the molding surface of the unpermeable mold is formed from the material composed of e.g. fluororesin, etc., such as polytetrafluoroethylene and having the contact angle of 80 deg. or larger with water, and preferably of 85 deg. or larger and further more preferably of 90 deg. or larger. When the contact angle with water is smaller than 80 deg., mold release characteristics becomes inferior. Especially when the complicatedly shaping object such as ceramic turbine rotor is molded, the defect due to mold release is removed by using the material having the contact angle of 90 deg. or larger ...

Methods and means for molding an aqueous fibrous mixture

... 956,524. Moulding fibrous cement. FRANCAISE ETERNIT S.A. May 16, 1962 [May 26, 1961], No. 18813/62. Heading B5A. In a method of moulding articles from an aqueous fibrous mixture by forcing the excess water out through perforations in the mould the material is injected through a channel 25 in a piston 24 into a mould cavity 32 between an outer cylinder 21 and a rubber sheath 31. The piston 24 is then advanced to cut off the supply of material and to compress the material in the mould so as to free some of the. excess water out through a perforated metal sheet 27 and channels 26 in the mould wall. The rubber sheath is then inflated by fluid supplied through a tube 30 to force more excess water out through the perforations.

Making clay ware handles

MOULDING

Method and Apparatus for Making Ceramic Articles.

... 1,194,229. Moulding ceramic articles. AMSTED INDUSTRIES Inc. 10 Aug., 1967 [5 Oct., 1966], No. 36726/67. Heading B5A. In a method of making a ceramic article, e.g. a tube, finely divided particles of ceramic material are mixed in a liquid to form a slurry which is forced into a mould and heated to gel. The apparatus comprises a mixer tank 10 in which water, colloidal silica and ice are mixed before being transferred to a tank 16 which is connected to a vacuum pipe 28 whereby air bubbles are removed from the slurry. Air under pressure is supplied to the tank 16 to force the slurry through a hose 22 which is connected to the bottom of the mould 40 in which a tubular core is located. The air vibrator 46 operates during mould filling. Hot water is circulated through the mould core and a central return pipe 126, Fig. 3, to cause the colloidal silica to gel. Cold water is then circulated through the core and return pipe to cause the aluminium core to shrink away from the moulded tube. The mould ...

POST FORMING MACHINE

... 1277309 Moulding reinforced concrete posts O L REED 22 Sept 1969 46624/69 Heading B5A [Also in Division El] Apparatus for forming reinforced concrete posts comprises an elongated hollow mould 20 having a closed end 21 and an open end and a plurality of elongated side walls. An elongated feed conduit 13 extends from a hopper 15 along the centre of the mould cavity to closed end 21 and the mould is mounted on wheels 22 for longitudinal movement relative to the conduit 13. A flexible tubular air impermeable liner 44 with one closed and one open end and substantially the same cross-section as the mould cavity is located inside the mould and surrounds the conduit 13. A set of elongated tubes 39 for carrying reinforcing rods 40 are fixed to the conduit and the open end of the mould can be closed by doors 35, 36 operable by pistons and cylinders 37, 38. One side wall of the mould 55 is hinged at 56 and held in position by latch 57 and the opposite wall 48 may be moved into the mould cavity to ...

PROCESS AND APPARATUS FOR THE MANUFACTURE OF CERAMIC MOULDINGS

SCHLICKERSPRITZGIESSVERFAHREN AND DEVICE FOR THE EXECUTION OF THE PROCEDURE

Einspritzaggregat für eine Formgebungsmaschine

An injection assembly (1) for a molding machine (2), in particular an injection molding machine, comprising an injection piston (3), a drive device (4) for moving the injection piston (3), and a force storage means, wherein the force storage means connects the drive device (4) to the injection piston (3).

PROCEDURE FOR THE PRODUCTION INTEGRAL OF TRAINED SHAPED PARTS

PROCEDURE FOR the PRODUCTION OF PARTS BY PIM (powder injection moulding) OR MIKROPIM (MICRO powder injection moulding)

MANUFACTURING PROCESS OF A DENTAL DEVICE WITH INJECTION MOULDING

INJECTION AGGREGATE FOR INJECTION MOULDING MACHINES

Method and means for producing a ceramic or metallic product for sintering

Indicia bearing septums, methods of manufacturing the septums and portal therefor

An information bearing septum viewable under radiographic imaging is formed by molding a septum base to have a depression with a given configuration and molding a one-piece solid radiopaque material insert having the same given configuration. The radiopaque insert is mounted to the cavity formed by the depression at the septum base. The top of the septum is then covered by a silicone layer that bonds to the septum. The finished septum is adapted to be fitted to a reservoir housing of a subcutaneous implantable portal. In place of the solid insert, the septum may be formed by placing on top of the septum base a one-piece top layer impregnated with a radiopaque material that has an integral hanging insert that fittingly mounts into the cavity formed by the depression at the septum base.

Indicia bearing septums, metods of manufacturing the septums and portal therefor

An information bearing septum viewable under radiographic imaging is formed by molding a septum base to have a depression with a given configuration and molding a one-piece solid radiopaque material insert having the same given configuration. The radiopaque insert is mounted to the cavity formed by the depression at the septum base. The top of the septum is then covered by a silicone layer that bonds to the septum. The finished septum is adapted to be fitted to a reservoir housing of a subcutaneous implantable portal. In place of the solid insert, the septum may be formed by placing on top of the septum base a one-piece top layer impregnated with a radiopaque material that has an integral hanging insert that fittingly mounts into the cavity formed by the depression at the septum base.

BASE SUPPORT FOR WIND-DRIVEN POWER GENERATORS

Disclosed are apparatus and corresponding methodology for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Different types of concrete are used between upper and lower sections of the stacked cylinders. The lower section uses reinforced concrete while the upper section used ultra high performance fiber reinforced concrete.

CERAMIC COMPONENTS FOR REPLACING JOINT SURFACES

The invention relates to a ceramic component for replacing joint surfaces and to methods for producing same. The ceramic joint surface implants comprise a first unit suitable for articulation and a porous second unit.

СПОСОБ ПОЛУЧЕНИЯ КАТАЛИЗАТОРОВ

Изобретение предлагает способ получения катализаторов путем порошкового инжекционного формования и полученные на его основе катализаторы, где катализаторы изготавливают путем приготовления керамического состава с регулируемыми температурой реологическими свойствами, содержащего каталитические компоненты, нагрева данного порошкового состава вплоть, по меньшей мере, до температуры перехода в текучее состояние, формования образца путем впрыскивания текучего порошкового состава в инжекционную форму с последующим охлаждением инжектированного порошкового состава ниже температуры перехода в текучее состояние, отсоединения формованного образца и спекания формованного образца с образованием керамического катализатора. Альтернативно может быть исходно сформована керамическая структура с последующим покрытием керамической структуры одним или несколькими каталитическими соединениями.

METHOD OF MANUFACTURING BUILDING MATERIAL, CONTAINING FIBROUS CEMENT

METHOD OF MANUFACTURING AN IRREGULARLY-SHAPED OBJECT IN A CURED ORGANIC OR INORGANIC MATERIAL

Molded body, and method for producing the molded body

A second mold is placed on a planar surface of a first mold to form a first mold cavity, which is filled with a first material slurry containing a first material powder and the molded slurry is caused to set, thereby forming a first molded part on the planar surface of the first mold. A third mold is placed on the planar surface of the first mold from which the second mold is removed and on which the first molded part is formed, thereby forming a second mold cavity. The second mold cavity is filled with a second material slurry which contains a second material powder different from the first material powder so as to mold the slurry in contact with the first molded part. The molded slurry is caused to set, thereby forming a second molded part on the planar surface of the first mold.

Method for producing composition for injection molding and composition for injection molding

A method for producing a composition for injection molding which contains an inorganic powder composed of at least one of a metal material and a ceramic material and a binder containing a polyacetal-based resin and a glycidyl group-containing polymer. The method includes: cryogenically grinding a first resin containing the polyacetal-based resin as a main component; cryogenically grinding a second resin containing the glycidyl group-containing polymer as a main component; mixing a powder obtained by grinding the first resin, a powder obtained by grinding the second resin, and the inorganic powder, thereby obtaining a mixed powder; and kneading the mixed powder.

Method for producing catalysts and catalysts thereof

The invention relates to a process to produce catalysts by powder injection moulding and the catalysts thereof, wherein the catalysts are made by preparing a ceramic formulation with temperature controlled rheological properties comprising catalytic components, heating the powder formulation up to at least the fluid state transition temperature, shaping a sample by injecting the fluid powder formulation into an injection mould followed by cooling the injected powder formulation below the fluid state transition temperature, de-binding the shaped sample, and sintering the shaped sample to form a ceramic catalyst. Alternatively the ceramic structure may be formed initially followed by a coating of the ceramic structure by one or more catalytic compounds.

Method of forming an object using powder injection molding

A method of forming an object by powder injection molding, the object being formed from an injection molded integral body comprising a green part contiguous with an expendable part, the method comprising debinding the integral body at step 18 to obtain a debound green part contiguous with a debound expendable part; sintering the debound green part at step 20 at a sintering temperature, the debound expendable part configured to at least partially define the debound green part and has a melting point higher than the sintering temperature; and separating the debound expendable part from the sintered debound green part at step 22 to form the object.

METHOD FOR FABRICATION OF STRUCTURES USED IN CONSTRUCTION OF TOWER BASE SUPPORTS

Disclosed are apparatus and corresponding methodologies for providing a base support, such as including concrete, and used such as for a wind-driven generator. Precast concrete cylinders are stacked in place upon a platform that may be partially precast and partially cast in place during assembly and supported, in certain embodiments, by plural concrete legs, the other ends of which are supported on a unitary or subdivided concrete foundation. In other embodiments, the platform may be supported by ribbed concrete panels. The concrete cylinders are glued together using an epoxy and then secured by an internal vertical post tension system extending from the platform to the upper most cylinder. Methodologies and apparatus for fabrication of concrete structure used in constructing the base support are also disclosed, with a focus on staves and various ring piece constructions. 1. A method of fabricating structures for use in construction of a support tower , the method comprising:providing respective outer diameter and inner diameter forms with the outer diameter form situated adjacent to the inner diameter form so as to collectively provide a concrete form defining a casting volume, the concrete form having at least one inlet for injection of concrete into the casting volume and at least one outlet for the displacement of air therefrom;injecting concrete into the casting volume;curing the concrete in the casting volume so as to form a casting;generating a first thermal gradient between the casting and the outer diameter form;removing the outer diameter form from the casting;generating a second thermal gradient between the casting and the inner diameter form; andremoving the casting from the inner diameter form.2. The method of claim 1 , wherein the generating the first thermal gradient includes spraying steam onto the outer diameter form claim 1 , or using at least one heater embedded in the outer diameter form claim 1 , or combinations thereof.3. The method of claim 1 ...

MOLD FOR CONSTRUCTION STRUCTURE AND METHOD FOR MANUFACTURING CONSTRUCTION STRUCTURE USING SAME

Disclosed is a mold for a construction structure which includes a plurality of hollow mold units arranged in a predetermined 3D pattern; a plurality of connecting units detachably connecting the mold units and communicating the mold units; and an outside wall fixing and supporting the outermost mold units in the mold units. 1. A mold for a construction structure , comprising:a plurality of hollow mold units arranged in a predetermined 3D pattern;a plurality of connecting units detachably connecting the mold units and communicating the mold units; andan outside wall fixing and supporting the outermost mold units in the mold units.2. The mold of claim 1 , wherein the mold units have at least one cross-section selected from a group of a circle claim 1 , an ellipse claim 1 , and polygon claim 1 , and a closed shape with curved lines and straight lines.3. The mold of claim 2 , wherein the mold units have a trapezoidal cross-section and are arranged along curved lines in the entire shape.4. The mold of claim 1 , wherein the mold units are made of a soft material having flexibility.5. The mold of claim 4 , wherein the mold units are made of one selected from a group of reinforcing rubber claim 4 , plastic claim 4 , and vinyl.6. The mold of claim 1 , wherein the connecting unit each have at least a pair of extensions that communicate with a pair of adjacent mold units and extend outward to face each other claim 1 , and at least coupler that detachably connects the pair of extensions such that the extensions communicate with each other.7. The mold of claim 6 , wherein the pair of extensions and the coupler are thread-fastened to each other.8. The mold of claim 6 , wherein the coupler has first and second couplers thread-fastened to the pair of extensions claim 6 , respectively claim 6 , and a bridge connecting the first and second couplers such that the first and second couplers can rotate.9. The mold of claim 6 , further comprising a plurality of coupling units fixing the ...

HEAT-RESISTANT TURBINE BLADE MADE FROM OXIDE CERAMIC

This relates to a turbine blade comprising a preformed fibrous fabric of fibres consisting of carbon, silicon carbide or rhenium fixed with a binder resin, and wherein the preformed and fixed fibrous fabric is coated and infiltrated, respectively, with BC, wherein the preformed fibrous fabric that has been fixed and coated and infiltrated, respectively, with BC further has a multilayer coating consisting of at least one layer of silicon carbide and at least one layer of a metal boride, a metal nitride or a metal carbide, and wherein an oxide ceramic is applied over the multilayer coating. The turbine blade is resistant to high temperatures and is particularly well suited for use in a gas turbine. Methods for producing the turbine blade are also described. 1. A turbine blade comprising a preformed fibrous fabric of fibres comprising carbon , silicon carbide or rhenium fixed with a binder resin , and wherein the preformed and fixed fibrous fabric is coated and/or infiltrated with BC , wherein the preformed fibrous fabric that has been fixed and coated or infiltrated with BC further has a multilayer coating comprising at least one layer of silicon carbide and at least one layer consisting of a metal boride , a metal nitride or a metal carbide , and wherein an oxide ceramic is applied over the multilayer coating.2. The turbine blade according to claim 1 , wherein the oxide ceramic comprises an oxide selected from AlO claim 1 , ZrO claim 1 , MgO claim 1 , YOand HfO.3. The turbine blade according to claim 1 , wherein the metal boride claim 1 , metal nitride or metal carbide is selected from HfB claim 1 , HfC claim 1 , HfN claim 1 , ZrB claim 1 , ZrC claim 1 , ZrN claim 1 , TiB claim 1 , TiC claim 1 , TiN claim 1 , TaB claim 1 , TaC claim 1 , TaN claim 1 , NbC claim 1 , TaC and NdB.4. Use of the turbine blade according to in a gas turbine.5. A method for manufacturing a turbine blade claim 1 , comprising the following steps:providing a fibrous fabric, wherein the fibrous ...

TOOL AND METHOD FOR MANUFACTURING A COMPOSITE-MATERIAL PART BY MEANS OF A LIQUID PROCESS

A tool for manufacturing a ceramic matrix composite part by injecting a slurry, the tool includes an injection chamber intended to receive at least one fibrous preform to be densified, wherein the injection chamber includes first injection ports which are formed in a first side of the injection chamber for injecting the slurry into the injection chamber, the first injection ports being distributed along the first side of the injection chamber; the injection chamber includes first drainage ports which are formed on the first side of the injection chamber for draining a liquid phase of the slurry from the injection chamber, the first drainage ports being distributed along the first side of the injection chamber; and the tool includes a first filtration element which is located on the first side of the injection chamber and which is located opposite the first drainage ports. 1. A tool for manufacturing a ceramic matrix composite part by injecting a slurry , said tool comprising an injection chamber adapted to receive at least one fibrous preform to be densified , wherein:the injection chamber comprises a plurality of first injection ports which are formed in a first side of said injection chamber for injecting the slurry into the injection chamber, said first injection ports being distributed along the first side of the injection chamber;the injection chamber comprises a plurality of first drainage ports which are formed on the first side of said injection chamber for draining a liquid phase of the slurry from the injection chamber, said first drainage ports being distributed along the first side of the injection chamber; andthe tool comprises a first filtration element which is located on the first side of said injection chamber and which is located opposite the first drainage ports.2. The tool as claimed in claim 1 , wherein between 2% and 30% of a surface area of the first side of the injection chamber is pierced by the first injection ports and the first drainage ...

OSSEOINTEGRATIVE SURGICAL IMPLANT AND IMPLANT SURGICAL KIT

Embodiments of the present invention provide an osseointegrative implant and related tools, components and fabrication techniques for surgical bone fixation and dental restoration purposes. In one embodiment an all-ceramic single-stage threaded or press-fit implant is provided having finely detailed surface features formed by ceramic injection molding and/or spark plasma sintering of a powder compact or green body comprising finely powdered zirconia. In another embodiment a two-stage threaded implant is provided having an exterior shell or body formed substantially entirely of ceramic and/or CNT-reinforced ceramic composite material. The implant may include one or more frictionally anisotropic bone-engaging surfaces. In another embodiment a densely sintered ceramic implant is provided wherein, prior to sintering, the porous debound green body is exposed to ions and/or particles of silver, gold, titanium, zirconia, YSZ, α-tricalcium phosphate, hydroxyapatite, carbon, carbon nanotubes, and/or other particles which remain lodged in the implant surface after sintering. Optionally, at least the supragingival portions of an all-ceramic implant are configured to have high translucence in the visible light range. Optionally, at least the bone-engaging portions of an all-ceramic implant are coated with a fused layer of titanium oxide. 149-. (canceled)50. A single stage press-fit dental implant comprising:an anchoring portion configured to be inserted subgingivally into an unthreaded osteotomy formed within the alveolar bone of a patient, said anchoring portion being generally cylindrical in shape and comprising a plurality of gripping edges configured to provide frictional anisotropy facilitating locomotion in the insertion direction of said anchoring portion; andan abutment portion integrally formed with said anchoring portion, said abutment portion comprising a transgingival portion configured to emerge from said anchoring portion through the gingiva at a predetermined ...

Method for Manufacturing Exothermic CeramicS for Microwave Oven and Exothermic Ceramics for Microwaves

Disclosed are a method for manufacturing exothermic ceramics for a microwave oven and exothermic ceramics for microwaves. In particular, provided is a method for manufacturing exothermic ceramics for a microwave oven, in which the exothermic ceramics are formed by mixing a ceramic body, such as clay, plastic clay or soil, with an exothermic element prepared by combining at least one selected from silicon carbide, carbon ferrite and iron oxide, which are exothermic components. Accordingly, the exothermic ceramics of the present invention can minimize a sense of difference between the exothermic element and the ceramic body component, which is raw material for ceramics, thereby being capable of emitting high-temperature heat in a short time by means of microwaves as well as maintaining stability in the shape. Furthermore, due to integral forming, the exothermic ceramics have an enhanced elegant design.

METHOD AND APPARATUS FOR PARTICLE INJECTION MOULDING

A die for moulding a core by a PIM process, the core having at least one internal feature, the die including; a first die part defining a first portion of an outer surface of the core; a second die part defining a second portion of the outer surface of the core; and an internal feature forming element for defining the surface of an internal feature of the core; wherein the internal feature forming element incorporates a temperature control circuit. 1. A die for moulding a core by a PIM process , the core having at least one internal feature , the die comprising;a first die part defining a first portion of an outer surface of the core;a second die part defining a second portion of the outer surface of the core; andan internal feature forming element for defining the surface of an internal feature of the core; wherein the internal feature forming element incorporates a temperature control circuit.2. A die as claimed in wherein the temperature control circuit comprises one or more micro-channels passing through a substantial part of the internal feature forming element.3. A die as claimed in wherein the micro-channels connect with a supply of coolant fluid which is caused to flow through the micro-channels during the PIM process.4. A die as claimed in wherein the micro-channels contain a substance that claim 2 , on undergoing a phase change claim 2 , makes use of the latent heat energy associated with the phase change to cool the surrounding surfaces.5. A die as claimed in wherein the substance is solid gallium.6. A die as claimed in wherein the circuit is connected to an expansion chamber and the micro-channels contain a hydrocarbon.7. A die as claimed in wherein the coolant fluid is water.8. A die as claimed in wherein the circuit comprise an embedded heat conductor.9. A die as claimed in wherein the embedded heat conductor is a wire which is elongate and convoluted and snakes through the element from a first end to a second end.10. A die as claimed in wherein the ...

METHOD OF FORMING GREEN PART AND MANUFACTURING METHOD USING SAME

A method of manufacturing a part, including providing a green body made of powder injection molding material and connected to a solid support member partially contained in the green body. The support member is engaged with a retaining fixture of a machine tool. While supporting the green body through the engagement between the support member and the retaining fixture, the green body is machined to obtain a machined green part. The machined green part is debound and sintered. A method of forming a powder injection molding part in a green state including machining a molded body using a machine tool while supporting the blank with a retaining fixture, and a machining blank having a green body and a solid support member including one locating feature of a pair of complementary locating features snuggly engageable with one another are also discussed.

APPARATUS AND METHOD FOR INVESTMENT CASTING CORE MANUFACTURE

A method of producing an investment casting ceramic core is provided that includes: providing a core body consisting of a leachable material; surrounding the core body with a mold composition within a vessel, which mold composition is configured to solidify; leaching the core body from the mold composition subsequent to the mold composition solidifying, thereby leaving an internal cavity within the solidified mold composition; depositing a ceramic composition within the internal cavity of the solidified mold composition; sintering the ceramic composition to a solid ceramic core; and removing the solid ceramic core from the mold composition. 1. A method of producing an investment casting ceramic core , comprising:providing a core body consisting of a leachable material;surrounding the core body with a mold composition within a vessel, which mold composition is configured to solidify;leaching the core body from the mold composition subsequent to the mold composition solidifying, thereby leaving an internal cavity within the solidified mold composition;depositing a ceramic composition within the internal cavity of the solidified mold composition;sintering the ceramic composition to a solid ceramic core; andremoving the solid ceramic core from the mold composition.2. The method of claim 1 , wherein the mold composition transforms from the solidified mold composition to a non-solid form during the sintering.3. The method of claim 2 , wherein the mold composition transforms from the solidified mold composition to a loose particulate form during the sintering.4. The method of claim 2 , wherein the mold composition includes one or more body constituents and one or more solidifying constituents.5. The method of claim 4 , wherein the one or more body constituents include at least one refractory material in particulate form.6. The method of claim 5 , wherein the one or more body constituents include one or more of alumina claim 5 , crystalline silica claim 5 , or magnesia ...

Co-Formed Element with Low Conductivity Layer

A co-formed element includes a core structure which has a root portion and is formed from a high thermal conductivity ceramic matrix composite material, and a low thermal conductivity layer co-formed with the core structure and surrounding the root portion of the core structure.

SEMI-PASSIVE CONTROL OF SOLIDIFICATION IN POWDERED MATERIALS

Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering. 1. A powdered material comprising a plurality of particles , wherein said particles are fabricated from a first material , and wherein each of said particles has a particle surface area that is surface-functionalized with a second material containing nanoparticles and/or microparticles selected to control solidification of said powdered material from a liquid state to a solid state.2. The powdered material of claim 1 , wherein said first material is selected from the group consisting of ceramic claim 1 , metal claim 1 , polymer claim 1 , glass claim 1 , and combinations thereof.3. The powdered material of claim 1 , wherein said second material is selected from the group consisting of metal claim 1 , ceramic claim 1 , polymer claim 1 , carbon claim 1 , and combinations thereof.4. The powdered material of claim 1 , wherein said first material is different than said second material.5. The powdered material of claim 1 , wherein said ...

Uniform Dispersing of Graphene Nanoparticles in a Host

The present invention includes a simple, scalable and solventless method of dispersing graphene into polymers, thereby providing a method of large-scale production of graphene-polymer composites. The composite powder can then be processed using the existing techniques such as extrusion, injection molding, and hot-pressing to produce a composites of useful shapes and sizes while keeping the advantages imparted by graphene. Composites produced require less graphene filler and are more efficient than currently used methods and is not sensitive to the host used, such composites can have broad applications depending on the host's properties.

BIODEGRADABLE POT DRYING INSTALLATION, MANUFACTURING INSTALLATION AND ASSOCIATED METHOD OF MANUFACTURE, AND BIODEGRADABLE POT OBTAINED ACCORDING TO THE INVENTION

An installation for drying a thin-walled biodegradable pot having a drying mould wherein one wall has a shape adapted to a corresponding shape of a wall of a moulded pot to be dried, and a means of heating the drying mould wall to a temperature above 160° C., and preferably between 180 and 240° C. Also disclosed are an installation for manufacturing pots having a drying installation mentioned above, a method of drying pots, a pot obtained from an installation or from a method mentioned above, and an assembly with a plant in a pot as mentioned above. 1. An installation for drying a biodegradable pot with thin walls for the growing of plants , which installation comprises a drying mold , a wall of which has a shape adapted to a corresponding shape of a wall of a molded pot to be dried , and means for heating the wall of the drying mold at a temperature above 160° C. , and preferably between 180 and 240° C.2. An installation according to claim 1 , also comprising a means for sucking a fluid such as water and/or water vapor through at least a portion of the wall of the drying mold.3. An installation according to claim 1 , wherein the wall of the drying mold is made of a solid material claim 1 , or of an openwork material claim 1 , a percentage of open area of which is less than 25%.4. An installation according to claim 1 , also comprising means for closing the drying mold.5. An installation according to claim 4 , wherein the means for closing is a drying counter-mold claim 4 , a wall of which has a shape adapted to a corresponding shape of a wall of the pot.6. An installation according to claim 5 , also comprising means for heating the wall of the drying counter-mold at a temperature above 160° C. claim 5 , and preferably between 180 to 240° C.7. An installation according to claim 5 , also comprising pressing means for compressing the pot between the drying counter-mold and the drying mold.8. An installation according to claim 4 , wherein the means for closing the ...

Method for manufacturing an object having a complex shape from a cured organic or inorganic material

The invention relates to a method for manufacturing a molded object from a mold comprising an internal cavity comprising one or several compartments and at least one removable part present within said internal cavity, said object being in a cured organic or inorganic material, said method successively comprising at least one cycle of following steps: a) a step for completely filling at least one compartment of the internal cavity of the mold, said compartment having a shape corresponding to all or part of the object, which one wishes to obtain, with a liquid composition which is curable by chemical reaction in order to form said material, said composition comprising at least one solvent; b) a step for curing by chemical reaction said composition within said mold; c) a step for withdrawing at least one removable part of said mold; and d) a step for drying within said mold the cured composition obtained in b), wherein all or part of steps a) to d) may be repeated with a curable liquid composition either identical or different from the one used during said cycle until the molded object is obtained and, wherein said mold, at least during the application of each step d) is a closed chamber, the walls of which forming a boundary between the internal cavity and the outside of the mold are in at least one material able to allow discharge of the gases from said step d).

CUTTING TOOL HAVING AT LEAST PARTIALLY MOLDED BODY

A cutting tool for performing cutting operations on a workpiece when the cutting tool is rotated about a central axis by a machine tool, the cutting tool includes a generally cylindrical body disposed about the central axis. The generally cylindrical body includes a first end and an opposite second end. The cutting tool further includes a cutting portion and a mounting portion. The cutting portion is disposed at or about the first end of the generally cylindrical body and includes a number of cutting edges structured to engage the workpiece during cutting operations. The mounting portion is disposed at or about the opposite second end of the generally cylindrical body and is structured to be coupled to the machine tool. At least a portion of the generally cylindrical body comprises a molded portion formed via a molding process about the cutting portion in a manner that couples the cutting portion to the generally cylindrical body. 1. A cutting tool for performing cutting operations on a workpiece when the cutting tool is rotated about a central axis by a machine tool , the cutting tool comprising:a generally cylindrical body disposed about the central axis, the generally cylindrical body having a first end and an opposite second end;a cutting portion disposed at or about the first end of the generally cylindrical body, the cutting portion having a number of cutting edges structured to engage the workpiece during cutting operations; anda mounting portion disposed at or about the opposite second end of the generally cylindrical body, the mounting portion being structured to be coupled to the machine tool,wherein at least a portion of the generally cylindrical body comprises a molded portion formed via a molding process, andwherein the molded portion is formed about the cutting portion in a manner that couples the cutting portion to the generally cylindrical body.2. The cutting tool of wherein the molded portion comprises fibers or particles disposed randomly or in a ...

SYSTEM AND PROCESS FOR MOLDING OF PARTS MADE OF FIBER CEMENT

A system and a method for molding a part from fiber cement, or fibrocement, slurry are provided. The molding is preferably made by pressure injection of the slurry. The slurry includes cementitious material, additives, fibers and water. The fibers can include polypropylene, polyethylene, polyacrylic, cellulose, and/or asbestos fibers. First and second molding sections define, at least partially, a chamber. The second molding section has at least one evacuating channel. The system includes a slurry inlet communicating with the chamber, for inserting the slurry. A bladder covers the first molding section, the bladder being inflatable for compressing the slurry between the bladder and the second molding section. A filter covers the second molding section and allows water contained in the slurry to pass through while retaining the cementitious material and fibers within the chamber. A pressurized fluid inlet port communicates with at least one conduit for inflating the bladder. 1. A method for molding a part from a fiber cement slurry , the fiber cement slurry comprising cementitious material , additives , fibers and water , said method comprising the steps of:a) providing a mold assembly including at least a first and second molding sections, the first molding section being covered with a bladder and the second molding section being covered with a permeable filter, the first and second molding sections defining, at least partially, a chamber for receiving the fiber cement slurry, the second molding section comprising at least one evacuating channel;b) inserting the fiber cement slurry in the chamber;c) inflating the bladder for compressing the fiber cement slurry between said bladder and the second molding section, thereby evacuating the water contained in the fiber cement slurry from the chamber through the filter and through the at least one evacuating channel while retaining the cementitious material and fibers within the chamber;d) deflating the bladder;e) removing ...

MOLDED BODY, AND METHOD FOR PRODUCING THE MOLDED BODY

A second mold is placed on a planar surface of a first mold to form a first mold cavity, which is filled with a first material slurry containing a first material powder and the molded slurry is caused to set, thereby forming a first molded part on the planar surface of the first mold. A third mold is placed on the planar surface of the first mold from which the second mold is removed and on which the first molded part is formed, thereby forming a second mold cavity. The second mold cavity is filled with a second material slurry which contains a second material powder different from the first material powder so as to mold the slurry in contact with the first molded part. The molded slurry is caused to set, thereby forming a second molded part on the planar surface of the first mold. 1. A method for producing a molded body , comprising:forming a first mold cavity by placing a second mold on a planar surface or a curved surface of a first mold having the planar surface or the curved surface;forming a first molded part on the planar surface or the curved surface of the first mold by filling the first mold cavity with a first material slurry which contains a first material powder, a dispersant, and a gelling agent, so as to mold the first material slurry, and by causing the molded first material slurry to set;forming a second mold cavity by placing a third mold on the planar surface or the curved surface of the first mold from which the second mold is removed and on which the first molded part is formed; andforming a second molded part on the planar surface or the curved surface of the first mold by filling the second mold cavity with a second material slurry which contains a second material powder different from the first material powder, a dispersant, and a gelling agent, so as to mold the second material slurry in such a manner that the second material slurry comes into contact with the first molded part, and by causing the molded second material slurry to set;the ...

WELDING OR CUTTING TOOL

A welding or cutting tool for welding or cutting electrically conductive workpieces includes a nozzle arranged on a tool tip for discharging a welding or cutting beam and a nozzle cap which at least partly surrounds the nozzle, is open towards the tool tip, and has an electrode that forms a capacitance with the respective workpiece and an insulating element that electrically insulates the electrode from the other components of the tool. The electrode consists of a first electrically conductive ceramic material and is formed integrally with the insulating element, which consists of a second electrically insulating ceramic material. 118182818163234323234. Welding or cutting tool for welding or cutting electrically conductive work pieces , having a nozzle () disposed at a tool tip () , for exit of a welding or cutting jet , and having a nozzle cap () that encloses the nozzle () , at least in part , and is open toward the tool tip () , which cap has an electrode () that forms a capacitance with the respective work piece , and which cap has an insulating element () that electrically insulates the electrode () relative to the further components of the tool , therein the electrode () comprises a first , electrically conductive ceramic material , and is Configured in one piece with the insulating element () , which comprises a second , electrically insulating ceramic material.2. Too according to claim 1 , wherein the first ceramic material is titanium nitride or ceramic having titanium nitride.3. Tool according to claim 1 , wherein the second ceramic material is aluminum oxide.42836324448. Tool according to claim 1 , wherein the nozzle cap () has a contact element () that connects the electrode. () with an electrical connector () of evaluation electronics () claim 1 , in electrically conductive manner.536. Tool according to claim 4 , wherein the contact element () comprises the first ceramic material.636. Tool according to claim 4 , wherein the contact element () is ...

METHOD AND ASSEMBLY FOR A MULTIPLE COMPONENT CORE ASSEMBLY

A component is formed from a component material introduced into a mold assembly. The mold assembly includes a mold that has a cavity defined therein by an interior wall. The cavity receives the component material in a molten state to form the component. A multiple component core assembly is positioned with respect to the mold and has a first core component attached to a second core component at a core split line. A core connection component is attached to each of the first and second core components at the core split line, such that the first core component is held adjacent the second core component at the core split line. The core connection component is formed from a connection component material that is at least partially absorbable by the component material. 1. A mold assembly for forming a component from a component material , said mold assembly comprising:a mold comprising an interior wall that defines a mold cavity within said mold, said mold cavity configured to receive the component material in a molten state therein; and a first core component;', 'a second core component separate from said first core component; and', 'a core connection component coupled to said first core component and said second core component, said core connection component formed from a connection component material configured to be absorbable by the component material, wherein said first core component is coupled adjacent said second core component at a core split line defined therebetween., 'a core assembly positioned with respect to said mold, said core assembly comprising2. The mold assembly in accordance with claim 1 , wherein at least one of said first core component and said second core component is fabricated from a core material different than said connection component material.3. The mold assembly in accordance with claim 2 , wherein said core material and said connection component material comprise a substantially similar thermal expansion coefficient.4. The mold assembly in ...

A METHOD OF MANUFACTURING A CERAMIC LIGHT TRANSMITTING BARRIER CELL, AND A BARRIER CELL PRODUCED BY THAT METHOD

A method of manufacturing a ceramic light transmitting barrier cell for enclosing a luminescent material and such a ceramic light transmitting barrier cell are provided. A part of a pre-formed barrier cell is formed by providing a material mix comprising a binder and inorganic particles in a first mold. On the part is provided a sacrificial layer for defining a cavity. A remainder part of the pre-formed barrier cell is formed by providing the material mix in a second mold which already comprises the part with the sacrificial layer. The sacrificial layer is at least partially removed to obtain the cavity. Optionally, the pre-formed barrier cell is heated (and/or sintered) to obtain the ceramic light transmitting barrier cell. The method of manufacturing is suitable for producing at large scale relatively cheap and accurately formed ceramic light transmitting barrier cells. 1. A method of manufacturing a ceramic light transmitting barrier cell for enclosing a luminescent material in a cavity of the ceramic light transmitting barrier cell , the luminescent material being configured to absorb a portion of light impinging on the luminescent material according to an absorption color distribution and to convert a part of the absorbed light into light having an emission color distribution , the method comprises the stages of:forming a part of a pre-formed barrier cell by providing a material mix into a first mold, the material mix comprising a binder and inorganic particles for forming a light transmitting ceramic material,providing a sacrificial layer on the part for defining a cavity of the pre-formed barrier cell, the sacrificial layer comprising a sacrificial material for being sacrificed in the method of manufacturing the ceramic light transmitting barrier cell,forming a remainder part of the pre-formed barrier cell by providing the material mix into a second mold, the second mold comprising the part with the sacrificial layer,at least partially removing the ...

Plasticization Device, Three-Dimensional Shaping Device, and Injection Molding Device

The plasticization device includes: a rotor rotating centered on a rotation axis by a drive motor and having a groove forming surface in which a first groove portion is formed along a rotation direction; a rotor case configured to accommodate the rotor; a barrel facing the groove forming surface and having a through hole; and a heating unit, in which a material supplied between the first groove portion and the barrel is plasticized by rotation of the rotor and heating by the heating unit to flow out from the through hole, and a side surface of the rotor has a material guiding port configured to guide the material to the first groove portion, and a second groove portion configured to feed the material supplied between the rotor and the rotor case to the material guiding port. 1. A plasticization device comprising:a rotor rotating centered on a rotation axis by a drive motor and having a groove forming surface in which a first groove portion is formed along a rotation direction;a rotor case configured to accommodate the rotor;a barrel facing the groove forming surface and having a through hole; anda heating unit, whereina material supplied between the first groove portion and the barrel is plasticized by rotation of the rotor and heating by the heating unit to flow out from the through hole, and a material guiding port configured to guide the material to the first groove portion, and', 'a second groove portion configured to feed the material supplied between the rotor and the rotor case to the material guiding port., 'a side surface of the rotor has'}2. The plasticization device according to claim 1 , whereinthe second groove portion includes a first portion continuous with the material guiding port and a second portion farther from the material guiding port than the first portion, anda groove depth of the first portion is deeper than a groove depth of the second portion.3. The plasticization device according to claim 1 , whereinthe second groove portion includes a ...

Plasticization Device, Three-Dimensional Shaping Device, And Injection Molding Device

A plasticization device includes: a rotor rotated by a drive motor and having a groove forming surface in which a first groove portion is formed along a rotation direction; a rotor case configured to accommodate the rotor; a barrel facing the groove forming surface and having a through hole; a first heating unit configured to heat the rotor or the barrel; and a cooling mechanism configured to cool a side surface of the rotor. In the plasticization device, a material supplied between the first groove portion and the barrel is plasticized by rotation of the rotor and heating by the first heating unit to flow out from the through hole, and the side surface of the rotor has a material guiding port configured to guide the material to the first groove portion, and a second groove portion configured to feed the material supplied between the rotor and the rotor case to the material guiding port. 1. A plasticization device comprising:a rotor rotated by a drive motor and having a groove forming surface in which a first groove portion is formed along a rotation direction;a rotor case configured to accommodate the rotor;a barrel facing the groove forming surface and having a through hole;a first heating unit configured to heat the rotor or the barrel; anda cooling mechanism configured to cool a side surface of the rotor, whereina material supplied between the first groove portion and the barrel is plasticized by rotation of the rotor and heating by the first heating unit to flow out from the through hole, and a material guiding port configured to guide the material to the first groove portion, and', 'a second groove portion configured to feed the material supplied between the rotor and the rotor case to the material guiding port., 'the side surface of the rotor has'}2. The plasticization device according to claim 1 , whereinthe cooling mechanism is provided inside the rotor case.3. The plasticization device according to claim 1 , whereinthe cooling mechanism is provided inside ...

ELECTROSURGICAL INSTRUMENT

An electrosurgical instrument is manufactured by presenting an electrode, and attaching a sacrificial portion to the electrode to form a first electrode assembly. An insulating material is moulded over the first electrode assembly to form a second electrode assembly, and the second electrode assembly is subjected to a further process which is capable of removing the sacrificial portion without removing the insulating material. The sacrificial portion is removed to form at least one cavity within the electrosurgical instrument. 1. A method of manufacturing an electrosurgical instrument including:presenting an electrode,attaching a sacrificial portion to the electrode to form a first electrode assembly,moulding an insulating material over the first electrode assembly to form a second electrode assembly, andsubjecting the second electrode assembly to a further process which is capable of removing the sacrificial portion without removing the insulating material,the sacrificial portion being removed to form at least one cavity within the electrosurgical instrument.2. A method according to claim 1 , wherein the further process is a heat treatment process.3. A method according to claim 1 , wherein the sacrificial portion is removed to form a suction passage within the electrosurgical instrument.4. A method according to claim 1 , wherein the sacrificial portion is coated on to at least part of the electrode.5. A method according to claim 1 , wherein the sacrificial portion is moulded on to at least part of the electrode.6. A method according to claim 1 , wherein the sacrificial portion is formed of a plastics material.7. A method according to claim 1 , wherein the electrode includes a tissue treatment portion and a connection portion claim 1 , the insulating material is moulded into a component having a first portion and a second portion claim 1 , the first portion is moulded around the tissue treatment portion of the electrode claim 1 , and the second portion is moulded ...

A New Method of Making a Cemented Carbide or Cermet Body

A method of manufacturing a cemented carbide and/or cermet comprising the steps of: a) providing a powder comprising metal carbide and binder metal and optionally metal nitride(s); b) mixing the powder composition under vacuum; c) adding at least one organic binder to the powder composition; d) mixing the at least one organic binder with the powder composition under vacuum and raising the temperature to a predetermined temperature and keeping the temperature for a predetermined time until the organic binder has melted; e) subjecting the obtained mixture of step d) to forming and sintering processes; wherein one or more dispersing agents is added to the powder composition in step a). 2. The method according to characterised in that one or more cooling agents is added to the powder composition in step b).3. The method according to claim 1 , wherein cemented carbide comprises more than or equal to 70 wt % tungsten carbide and not more than or equal to 30 wt % of at least one other metal carbide and/or metal nitride selected from titanium carbide claim 1 , tantalum carbide claim 1 , tantalum nitride claim 1 , titanium nitride claim 1 , niobium carbide claim 1 , vanadium carbide claim 1 , molybdenum carbide claim 1 , chromium carbide and mixtures thereof.4. The method according to claim 1 , wherein cermet comprises titanium carbide claim 1 , titanium nitride claim 1 , tungsten carbide claim 1 , tantalum carbide claim 1 , tantalum nitride claim 1 , niobium carbide claim 1 , vanadium carbide claim 1 , molybdenum carbide claim 1 , chromium carbide claim 1 , or a mixture thereof.5. The method according to claim 1 , wherein that binder metal(s) is selected from cobalt claim 1 , molybdenum claim 1 , iron claim 1 , chromium or nickel and a mixture thereof.6. The method according to claim 1 , wherein that the mixing is performed by using a high shear mixer such as a high speed rotor mixer claim 1 , or a planetary mixer.7. The method according to claim 1 , wherein one or more ...

Method of making a spacer device having a containment body

A method of making a spacer device or a device to be implanted in a human body that includes a containment body and is suitable for treating a bone seat or a joint seat of the human body includes a base portion and side walls that extend from the base portion and that delimit between them at least one cavity, wherein the containment body has a plurality of pores and/or at least one opening, configured to place the at least one internal cavity in communication with the outside of the containment body. 1. A method of making a temporary and/or disposable spacer device implantable in a human body for the treatment of a bone seat or of a joint seat , the spacer device comprising ,an outer portion, having a shape substantially matching the shape of the bone seat or of the joint seat to be treated or a part of the bone seat or of the joint seat to which the spacer device is to be constrained, andan inner portion,the method comprising the steps of:providing at least one containment body shaped like the bone seat or the joint seat to be treated or a part the bone seat or the joint seat to be treated, and having at least one cavity, so as to constitute an outer portion of the spacer device;providing a filling material;inserting or impregnating the filling material in the at least one cavity; andsetting or shaping the filling material, so as to constitute an inner portion of the spacer device.2. The method according to claim 1 , further comprising the steps of:providing a closing body adapted for closing the at least one cavity in the containment body, the closing body having a first surface, facing outside the at least one cavity when the closing body is coupled with the containment body, and a second surface opposite the first surface, facing inside the at least one cavity when the closing body is coupled with the containment body; andcoupling the closing body with the containment body so as to define a casing, inside which the inner portion is contained.3. The method ...

MACHINING FEATURES IN A CERAMIC COMPONENT FOR USE IN AN ELECTRONIC DEVICE

A ceramic part and methods for making the ceramic part are disclosed. A green body or non-sintered part may be formed using a casting or molding process. The green body may not be sintered or may be partially sintered before machining one or more features into a surface of the green body. After machining, the component may be fully sintered to create a hardened ceramic component. 1. A method for manufacturing a ceramic component for a portable electronic device , comprising:forming a green body from a ceramic powder comprising zirconium dioxide;machining the green body to form a feature in a surface of the green body; andsintering the green body to form the ceramic component.2. The method of claim 1 , further comprising:mixing a slurry including a solvent, water, and the ceramic powder;pouring the slurry into a casting mold;applying pressure to the slurry while in the casting mold;heating the slurry while in the casting mold to form the green body; andremoving the green body from the casting mold.3. The method of claim 2 , wherein heating the slurry includes heating at a temperature sufficient to burn off or evaporate the water and solvent of the slurry.4. The method of claim 2 , wherein heating the slurry results in partially sintering at least a portion of the green body.5. The method of claim 4 , wherein heating the slurry is performed at a temperature below 700 degrees Celsius.6. The method of claim 4 , wherein heating the slurry results in the green body having a hardness of less than 100 HV on a Vickers Hardness scale.7. The method of claim 1 , wherein forming the green body is performed using a ceramic casting process.8. The method of claim 1 , wherein forming the green body is performed using an injection-molding process.9. The method of claim 1 , wherein:machining the green body includes drilling a hole into the surface of the green body; andthe hole has a diameter of less than 1 mm.10. A method for manufacturing a ceramic component claim 1 , comprising: ...

ARTHROSCOPIC DEVICES AND METHODS

An arthroscopic or other surgical cutter has features which facilitate fabrication by ceramic molding. The arthroscopic cutter includes a cutter body having a longitudinal axis and a window, an interior channel, and a plurality of cutting edges extending radially outwardly from an outer surface thereof. The features include non-helical, longitudinally aligned cutting edges, controlled thicknesses of the cutting edges, controlled heights of the cutting edges, controlled areas of the windows, controlled diameters of the internal channels, controlled rake angles of the cutting edges, and other parameters. 1. A mold assembly for fabricating a ceramic surgical cutter member including a ceramic body having an outer surface , a longitudinal axis , a distal cutting portion with cutting edges , and a proximal shaft portion with a window that opens to an interior channel , said method comprising:a main body mold component having (1) an internal mold cavity configured to receive a flowable material comprising a ceramic to form the outer surface of the ceramic cutter body, (2) a window aperture, and (3) an interior passage aperture;a first core pin which is configured to pass through the widow aperture in the mold component to form the window of the ceramic cutter body;a second core pin which is configured to pass through the interior channel aperture in the mold to form the interior channel of the ceramic cutter body;wherein the interior channel aperture is oriented to align the second core pin axially through the mold component and the window aperture is oriented to align the first core pin laterally through the mold component so that a distal end of the first core pin engages a side of the second core pin to connect the window of the ceramic cutter body to the interior passage of the ceramic cutter body so that tissue may be drawn through the window into the interior passage of a ceramic cutter body formed by the mold assembly.2. The mold assembly of wherein the main body ...

Additive manufacturing method and device for ceramic and composite thereof

Additive manufacturing (AM) methods and devices for high-melting-point materials are disclosed. In an embodiment, an additive manufacturing method includes the following steps. (S1) Slicing a three-dimensional computer-aided design model of a workpiece into multiple layers according to shape, thickness, and size accuracy requirements, and obtaining data of the multiple layers. (S2) Planning a forming path according to the data of the multiple layers and generating computer numerical control (CNC) codes for forming the multiple layers. (S3) Obtaining a formed part by preheating a substrate, performing a layer-by-layer spraying deposition by a cold spraying method, and heating a spray area to a temperature until the spraying deposition of all sliced layers is completed. (S4) Subjecting the formed part to a surface modification treatment by a laser shock peening method.

INDICIA BEARING SEPTUMS, METHODS OF MANUFACTURING THE SEPTUMS AND PORTAL THEREFOR

An information bearing septum viewable under radiographic imaging is formed by molding a septum base to have a depression with a given configuration and molding a one-piece solid radiopaque material insert having the same given configuration. The radiopaque insert is mounted to the cavity formed by the depression at the septum base. The top of the septum is then covered by a silicone layer that bonds to the septum. The finished septum is adapted to be fitted to a reservoir housing of a subcutaneous implantable portal. In place of the solid insert, the septum may be formed by placing on top of the septum base a one-piece top layer impregnated with a radiopaque material that has an integral hanging insert that fittingly mounts into the cavity formed by the depression at the septum base. 1. A method of manufacturing an indicia bearing septum , comprising the steps of:(a) providing an elastomeric septum;(b) forming at least one depression of a given configuration at a top surface of the septum;(c) molding a radiopaque insert having the given configuration; and(d) mounting the radiopaque insert into the depression at the septum;wherein the insert provides an indicia to a viewer visually and when the septum is viewed under x-ray or computer tomography imaging.2. The method of claim 1 , further comprising the step of:covering the top surface of the septum wherefrom the depression is formed with a transparent elastomeric layer after the insert has been mounted into the depression to insulate the insert from the environment.3. The method of claim 1 , wherein step (c) further comprises the steps of:configuring a mold to have a cavity shaped to form the insert having the given configuration;injecting a radiopaque material into the mold cavity; andsolidifying the radiopaque material injected into the mold cavity to form the insert as a radiopaque one piece solid insert.4. The method of claim 3 , wherein the injecting step comprises the step of injecting liquid Barium Sulfate ( ...

CONSECUTIVE PIECEWISE MOLDING SYSTEM AND METHOD

The present invention is directed to a method for additively fabricating a solid object from a series of components. The method utilizes additive fabrication with a programmed computer operating a machine to produce a solid object based on a three dimensional, computerized rendering of the solid object. Each component is produced from one or more molds which are filled with a fluid material that solidifies into a component that attaches to a previously manufactured component by way of the same process. 1. A method for using a programmed computer operating a machine to additively produce a solid object from a three dimensional rendering of the solid object comprising the steps of:(1) positioning a first mold or first mold group in a first predetermined position against a support;(2) filling the inside volume of the first mold or first mold group with a first volume of fluid material;(3) permitting the fluid material to at least partially solidify into a first component;(4) removing the first mold or first mold group from the first predetermined position;(5) positioning a second mold or second mold group in a second predetermined position;(6) filling the inside volume of the second mold or second mold group with a second volume of fluid material;(7) permitting the second fluid material to at least partially solidify into a second component;(8) removing the second mold or second mold group from the second predetermined position;(9) positioning a subsequent mold or subsequent mold group in a subsequent predetermined position;(10) filling the inside volume of the subsequent mold or subsequent mold group with a subsequent volume of fluid material;(11) permitting the subsequent volume of fluid material to at least partially solidify into a subsequent component;(12) removing the subsequent mold or subsequent mold group from the subsequent predetermined position; and(13) repeating steps 9 through 12 until all components of the solid object are formed.2. The method of wherein ...

DUAL-WALLED CERAMIC MATRIX COMPOSITE (CMC) COMPONENT WITH INTEGRAL COOLING AND METHOD OF MAKING A CMC COMPONENT WITH INTEGRAL COOLING

A dual-walled ceramic matrix composite (CMC) component comprises: a CMC core having a hollow shape enclosing at least one interior channel; and a CMC outer layer overlying and spaced apart from the CMC core by a ceramic slurry-cast architecture positioned therebetween. Each of the CMC core and the CMC outer layer comprises ceramic fibers in a ceramic matrix. The CMC core further includes a plurality of through-thickness inner cooling holes in fluid communication with the at least one interior channel. The ceramic slurry-cast architecture defines a cooling fluid path over an outer surface of the CMC core that connects the interior channel(s) to an external environment of the dual-walled CMC component. The CMC outer layer may also include a plurality of through-thickness outer cooling holes in fluid communication with the cooling fluid path, thereby extending the cooling fluid path through the CMC outer layer. 1. A dual-walled ceramic matrix composite (CMC) component with integral cooling , the dual-walled CMC component comprising:a CMC core having a hollow shape enclosing at least one interior channel; anda CMC outer layer overlying and spaced apart from the CMC core by a ceramic slurry-cast architecture positioned therebetween, each of the CMC core and the CMC outer layer comprising ceramic fibers in a ceramic matrix,wherein the CMC core includes a plurality of through-thickness inner cooling holes in fluid communication with the at least one interior channel, andwherein the ceramic slurry-cast architecture defines a cooling fluid path over an outer surface of the CMC core, the cooling fluid path connecting the at least one interior channel to an external environment of the dual-walled CMC component.2. The dual-walled CMC component of claim 1 , wherein the CMC outer layer further comprises a plurality of through-thickness outer cooling holes in fluid communication with the cooling fluid path claim 1 , thereby extending the cooling fluid path through the CMC outer ...

METHOD OF MAKING A SURGICAL INSTRUMENT WITH HIGH CONTRAST MARKING

A method of marking a surgical instrument with a symbol formed in or on a smooth surface comprises forming a symbol in or on a smooth surface of the surgical instrument; and forming a plurality of angled surfaces over at least part of the area of the symbol. The angled surfaces define a plurality of parallel ridges and grooves in the symbol. The steps of forming the symbol and forming the plurality of angled surfaces take place substantially simultaneously in a single step. 1. A method of marking a surgical instrument with a symbol formed in or on a smooth surface , the method comprising:forming a symbol in or on a smooth surface of the surgical instrument; andforming a plurality of angled surfaces over at least part of the area of the symbol,wherein the angled surfaces define a plurality of parallel ridges and grooves in the symbol; andwherein the steps of forming the symbol and forming the plurality of angled surfaces take plane substantially simultaneously in a single step.2. The method of wherein the symbol and plurality of angled surfaces are formed in a single molding step.3. The method of further including a step selected from the group of polishing or roughening the plurality of angled surfaces or the smooth surface to produce a different surface roughness in the plurality of angled surfaces compared to the smooth surface.4. The method of wherein the symbol and plurality of angled surfaces are formed in a single machining step.5. The method of further including a step selected from the group of polishing or roughening the plurality of angled surfaces or the smooth surface to produce a different surface roughness in the plurality of angled surfaces compared to the smooth surface. This application is a divisional application of U.S. patent application Ser. No. 13/979,331, which is a national stage 35 U.S.C. 371 application of International Patent Application PCT/GB2012/050004 filed Jan. 4, 2012, the disclosures of which are incorporated by reference herein in ...

METHOD OF SUPPORTING A PART

A method of supporting a part with particulate shape retaining media, the method including placing the part on a bed of the particulate shape retaining media, fluidizing the particulate shape retaining media until the part penetrates therein, and vibrating the bed of particulate shape retaining media to compact the particulate shape retaining media around the part. The part may be a green part to be debound in a powder injection molding process. Fluidization may be performed through vibrations at a different frequency than the compaction. 1. A method of supporting a part with particulate shape retaining media , the method comprising:placing the part on a bed of the particulate shape retaining media;fluidizing the particulate shape retaining media until the part penetrates therein; andvibrating the bed of particulate shape retaining media to compact the particulate shape retaining media around the part.2. The method as defined in claim 1 , wherein the part is a green part to be debound in a powder injection molding process claim 1 , and the particulate shape retaining media is wettable by at least one binder component of the green part.3. The method as defined in claim 2 , wherein the particulate shape retaining media is alumina.4. The method as defined in claim 1 , wherein fluidizing the particulate shape retaining media includes vibrating the bed of particulate shape retaining media at a first frequency to cause the fluidization claim 1 , and vibrating the bed of particulate shape media to compact the particulate shape media around the part is performed at a second frequency different from the first frequency.5. The method as defined in claim 4 , wherein the first frequency is from about 30 Hz to about 60 Hz.6. The method as defined in claim 4 , wherein the second frequency is lower than the first frequency.7. The method as defined in claim 1 , wherein vibrating the bed of particulate shape retaining media to compact the particulate shape retaining media includes ...

WEARABLE ELECTRONIC DEVICE AND METHOD FOR MANUFACTURING THEREOF

A wearable electronic device includes a body part made of a non-ceramic material, having an inner surface and an outer surface, wherein at least one cavity having a depth is arranged on the inner surface of the body part, an electronic part arranged in the at least one cavity, which electronic part has a thickness that is less than the depth of the at least one cavity, and a coating made of a moldable filler material on the inner surface of the body part, covering the electronic part and the at least one cavity. 1. A wearable electronic device comprising:a body part made of a non-ceramic material, having an inner surface and an outer surface, wherein at least one cavity having a depth is arranged on the inner surface of the body part,an electronic part arranged in said at least one cavity, which electronic part has a thickness that is less than the depth of the at least one cavity, anda coating made of a moldable filler material on the inner surface of the body part, covering the electronic part and the at least one cavity.2. The wearable electronic device according to claim 1 , wherein the non-ceramic material is a titanium material.3. The wearable electronic device according to claim 1 , wherein the non-ceramic material is a machinable material.4. The wearable electronic device according to claim 1 , wherein the non-ceramic material is a machinable titanium material.5. The wearable device according to wherein the non-ceramic material is a machinable metallic material comprising one or more of titanium claim 1 , steel claim 1 , platinum claim 1 , gold claim 1 , palladium claim 1 , silver or bronze or a gold based alloys.6. The wearable electronic device according to claim 1 , wherein the electronic part is attached to the cavity a bottom of the cavity.7. The wearable electronic device according to claim 6 , comprising one or more of a sticker claim 6 , a tape or glue that attaches the electronic part to the at least one cavity at a bottom of the at least one cavity ...

ARTHROSCOPIC DEVICES AND METHODS

An arthroscopic or other surgical cutter has features which facilitate fabrication by ceramic molding. The arthroscopic cutter includes a cutter body having a longitudinal axis and a window, an interior channel, and a plurality of cutting edges extending radially outwardly from an outer surface thereof. The features include non-helical, longitudinally aligned cutting edges, controlled thicknesses of the cutting edges, controlled heights of the cutting edges, controlled areas of the windows, controlled diameters of the internal channels, controlled rake angles of the cutting edges, and other parameters. 1a main body mold component having (1) an internal mold cavity configured to receive a flowable material comprising a ceramic to form the outer surface of the ceramic cutter body, (2) a window aperture, and (3) an interior passage aperture;a first core pin which is configured to pass through the widow aperture in the mold component to form the window of the ceramic cutter body;a second core pin which is configured to pass through the interior channel aperture in the mold to form the interior channel of the ceramic cutter body;wherein the interior channel aperture is oriented to align the second core pin axially through the mold component and the window aperture is oriented to align the first core pin laterally through the mold component so that a distal end of the first core pin engages a side of the second core pin to connect the window of the ceramic cutter body to the interior passage of the ceramic cutter body so that tissue may be drawn through the window into the interior passage of a ceramic cutter body formed by the mold assembly.. A mold assembly for fabricating a ceramic surgical cutter member including a ceramic body having an outer surface, a longitudinal axis, a distal cutting portion with cutting edges, and a proximal shaft portion with a window that opens to an interior channel, said method comprising: This application is a continuation of U.S. patent ...

METHOD FOR FORMING A FRAME CORE HAVING A CENTER LEG FOR AN INDUCTIVE COMPONENT AND FRAME CORE PRODUCED ACCORDINGLY

The present invention provides a method of forming a frame core () having a center leg () for an inductive component, and an accordingly formed frame core () having a center leg () and an air gap () in the center leg (). The frame core () is formed integrally with the center leg (), the air gap () being molded into the center leg () during the formation of the frame core (). 1. A method for forming a frame core having a center leg for an inductive component , wherein the frame core is formed integrally with the center leg , and wherein an air gap is molded into the center leg; during the formation of the frame core.2. The method according to claim 1 , wherein the frame core having a center leg is formed in a ceramic injection molding process.3. The method according to claim 1 , wherein the frame core having a center leg is formed in a compression molding process.4. The method according to claim 1 , wherein the center leg interconnects two frame areas along a longitudinal direction claim 1 , and the air gap extends through the center leg in a direction transversely to the longitudinal direction.5. The method according to claim 4 , wherein the frame core additionally comprises two lateral leg parts which close the frame core claim 4 , wherein the lateral leg parts extend along the longitudinal direction straight or in an at least partially curved shape.6. The method according to claim 5 , wherein the center leg is laterally spaced apart from each lateral leg part through at least one winding window having a shape of a rectangular parallelepiped or of a cylinder.7. The method according to claim 4 , wherein the air gap is molded-in at an angle other than 90° relative to the longitudinal direction.8. The method according to claim 1 , wherein the air gap is molded-in as an air gap having the shape of a prism claim 1 , or as an air gap having the shape of a roof or of a pyramid claim 1 , or as a wedge-shaped air gap claim 1 , or as a double wedge-shaped air gap.9. The ...

PROCESSING METHOD FOR PIP DERIVED CMC ARTICLE

A disclosed method of forming a ceramic article includes forming a pre-ceramic polymer article within a mold tool, and performing a first pyrolizing step on the initial pre-ceramic polymer article to form a ceramic article. The method further includes performing at least one pre-heat treatment polymer infiltration and pyrolizing (PIP) cycle on the ceramic article and an initial heat treatment cycle of the ceramic article after the at least one pre-heat treatment PIP cycle. Subsequent PIP cycles and heat treatment cycles are performed in combination to form a ceramic article including a desired density. 1. A method of forming a ceramic article comprising:forming a pre-ceramic polymer article within a mold tool;performing a first pyrolizing step on the pre-ceramic polymer article to form a ceramic article;performing at least one pre-heat treatment polymer infiltration and pyrolizing (PIP) cycle on the ceramic article;performing an initial heat treatment cycle of the ceramic article after the at least one pre-heat treatment PIP cycle;performing at least one post-heat treatment PIP cycle after the at least one initial heat treatment process; andperforming at least one heat treatment cycle after the at least one post-heat treatment PIP cycle.2. The method as recited in claim 1 , wherein the at least one pre-heat treatment PIP cycle on the ceramic article comprises at least two (2) PIP cycles.3. The method as recited in claim 1 , wherein the at least one pre-heat treatment PIP cycle on the ceramic article comprises at least six (6) PIP cycles.4. The method as recited in claim 1 , wherein the at least one post-heat treatment PIP cycle comprises at least two (2) PIP cycles.5. The method as recited in claim 1 , including performing the at least one heat treatment cycle after at least one (1) post-heat treatment PIP cycles.6. The method as recited in claim 5 , including repeating both the post heat treatment PIP cycle after one heat treatment cycle for between two (2) and ...

CERAMIC COMPOSITIONS

A dried or at least partially dried ceramic feedstock, a method of preparing a dried or at least partially dried ceramic feedstock having a residual solvent content of up to about 15 wt. %, ceramic formulations comprising one or more ceramic precursors, temperature sensitive gelling agent, solvent, and having a viscosity suitable for low pressure injection molding, methods for preparing said ceramic formulations, a method of forming a ceramic article from said ceramic formulations, and a ceramic article obtainable therefrom. 1. A ceramic formulation comprising one or more ceramic precursors , a temperature sensitive gelling agent , and a solvent , wherein the ceramic formulation has a solids concentration of at least 50 vol. % and a viscosity of not more than 10 Pa·s at a shear rate of 100 sat a temperature greater than the gel point of the gelling agent.2. A ceramic feedstock comprising one or more ceramic precursors and a temperature sensitive gelling agent , wherein the ceramic feedstock is dried or at least partially dried and has a solvent content of up to about 15 wt. % , based on the total weight of the ceramic feedstock.3. A ceramic feedstock according to claim 2 , wherein the feedstock is obtainable by a method comprising:preparing, obtaining or providing a ceramic slurry comprising one or more ceramic precursors, a temperature sensitive gelling agent, and a solvent; andtreating the ceramic slurry to obtain a dried or at least partially dried ceramic feedstock having a residual solvent content of up to about 15 wt. %, based on the total weight of the ceramic feedstock.4. A ceramic feedstock according to in powder claim 2 , granulated or pelletized form.5. (canceled)6. (canceled)7. A ceramic feedstock according to claim 3 , wherein the ceramic slurry is prepared by a process comprising:mixing the one or more ceramic precursors with solvent and heating;separately dissolving gelling agent in solvent; andmixing the one or more ceramic precursors with solvent ...

ITEM MADE FROM CERMET AND/OR CERAMIC

An item made from cermet and/or ceramic, and in particular a bezel () of a timepiece, produced by a method for injecting at least two materials () of distinct compositions, the item including a part () where the two materials () are superimposed and are interleaved one in the other. 27. The manufacturing method according to claim 1 , wherein the structure of the portion () is discontinuous.37. The manufacturing method according to claim 1 , wherein the structure of the portion () is in relief.477a. The manufacturing method according to claim 3 , wherein the structure of the portion () is formed by a multitude of studs ().57. The manufacturing method according to claim 1 , wherein the structure of the portion () is hollow and formed by a multitude of hollows.676923. The manufacturing method according to claim 1 , wherein the portion () is projecting with respect to the plane of the cavity () so as to form a pocket () in the first material () intended to be filled with the second material () during the injection.732823. The manufacturing method according to claim 1 , wherein the second material () is injected onto the first material () to form the unfired body () comprising two superimposed layers with a layer of the first material () and a layer of the second material ().839. The manufacturing method according to claim 6 , wherein all the second material () with the exception of the material filling the pocket () is removed during the machining.94. An item made from cermet and/or ceramic claim 6 , comprising at least two materials differentiated through the chemical composition thereof claim 6 , said two materials being a ceramic or a cermet claim 6 , wherein it includes a part () where the two materials are superimposed and are interleaved one in the other.102a. The item according to claim 9 , wherein one of the two materials includes hollows () filled with the other material.112a. The item according to claim 10 , wherein the hollows () have a minimum depth of 0.2 ...

CERAMIC COMPOSITION AND CERAMIC INJECTION-MOLDING PROCESS

A ceramic composition for an injection-molding process for producing a combustion chamber pressure sensor, in particular for producing an insulation punch of a combustion chamber pressure sensor, includes a ceramic component in a proportion of greater than or equal to 50% by weight and a glass component in a proportion of less than or equal to 50% by weight. The ceramic component includes aluminum oxide. The glass component includes silicon dioxide or a silicon dioxide precursor. The ceramic composition further includes an alkaline earth metal oxide or an alkaline earth metal oxide precursor. The ceramic composition allows production of an insulation punch having a particularly good insulation capability. A ceramic injection-molding process includes the ceramic composition. 1. A ceramic composition for an injection-molding process for producing a combustion chamber pressure sensor , comprising:a ceramic component in a proportion of greater than or equal to 50% by weight, the ceramic component comprising aluminum oxide;a glass component in a proportion of less than or equal to 50% by weight, the glass component comprising silicon dioxide or a silicon dioxide precursor; andan alkaline earth metal oxide or an alkaline earth metal oxide precursor.2. The ceramic composition according to claim 1 , wherein the alkaline earth metal oxide or the alkaline earth metal oxide precursor and the silicon dioxide or the silicon dioxide precursor is present in such an amount as to set a ratio of alkaline earth metal oxide to silicon dioxide of 30% by weight:70% by weight to 70% by weight:30% by weight.3. The ceramic composition according to claim 1 , wherein the alkaline earth metal oxide precursor is selected from the group consisting of carbonates.4. The ceramic composition according to claim 1 , wherein the silicon dioxide precursor is selected from the group consisting of talc and lime.5. The ceramic composition according to claim 1 , further comprising a binder system that ...

Disposable core die and method of fabricating a ceramic body

A disposable core die is provided. The disposable core die includes a first portion defining an inlet configured to receive a slurry therethrough, a second portion integrally formed downstream from the first portion and configured to receive the slurry from the first portion, and a third portion integrally formed downstream from the second portion. The second portion includes a plurality of hollow tubes that are substantially coaxially aligned and have a wall thickness within a range defined between about 0.1 mm and about 0.5 mm, and the third portion defines an outlet configured to discharge excess slurry from the second portion.

CERAMIC COMPONENTS FOR REPLACING JOINT SURFACES

Ceramic components for replacing joint surfaces, and methods for production thereof. In particular, the invention relates to ceramic joint surface implants which completely or partially replace natural cartilage. 116.-. (canceled)17. A ceramic joint surface implant comprising:a component with at least a first unit and a second unit;wherein the first unit comprises a tribological surface which is suitable for articulation, andwherein the second unit comprises a ceramic which is porous at least in some regions.18. The ceramic joint surface implant according to claim 17 , wherein the first unit comprises a dense ceramic.19. The ceramic joint surface implant according to claim 17 , wherein the second unit has a surface which is osseointegrative.20. The ceramic joint surface implant according to claim 18 , wherein the tribological surface has a curvature.21. The ceramic joint surface implant according to claim 20 , wherein a surface of the second unit opposite the tribological surface of the first unit is likewise curved.22. The ceramic joint surface implant according to claim 17 , wherein the implant has a mushroom shape claim 17 , wherein the cap of the mushroom comprises the tribological surface and the stem of the mushroom serves for fastening in the bone.23. The ceramic joint surface implant according to claim 17 , wherein the implant has a ceramic thread so that the implant can be screwed into the bone.24. The ceramic joint surface implant according to claim 17 , wherein the implant has an osseointegrative coating.25. The ceramic joint surface implant according to claim 24 , wherein the osseointegrative coating comprises at least one member selected from the group consisting of sputtered titanium claim 24 , a biofunctional surface claim 24 , a bioglass claim 24 , hydroxyapatite and tricalciumphosphate.26. A method for producing a ceramic joint surface implant claim 24 , wherein the ceramic joint surface implant comprises at least a first and a second unit claim 24 ...

METHOD FOR PRODUCING A DIMENSIONALLY STABLE CONCRETE WORKPIECE AND DIMENSIONALLY STABLE CONCRETE WORKPIECE

The invention relates to a method for producing a dimensionally stable concrete workpiece characterised in that to produce the concrete workpiece a fully-sealed dimensionally stable form () is filled with fresh concrete in a predetermined geometry, during the subsequent and undisrupted hydratation a predetermined temperature distribution of the walls () of the form () surrounding the hydrated concrete is carried out and the concrete workpiece is shaped at a compressive strength of more than 10 MPa. The maximum size of the fresh concrete has a diameter of less than 20% of the smallest measurement of the shape. 1. A method for producing a dimensionally stable concrete workpiece , the method comprising:for the production of the concrete workpiece, a fully sealed mould, dimensionally stable in a predetermined geometry, is completely filled with fresh concrete, a predetermined temperature distribution of the walls of the mould surrounding the hydrating concrete is set during the subsequent and undisrupted hydration and the concrete workpiece is removed from the mould with a compressive strength of more than 10 MPa, wherein the maximum grain size of the fresh concrete has a diameter of less than 20% of the smallest dimension of the mould.2. The method according to claim 1 , wherein the temperature distribution of the walls of the mould is set such that the temperature distribution in the hydrating concrete from the start of the hydration up to the formwork removal lies within a permitted range of 15° C. claim 1 , preferably 10° C. claim 1 , particularly preferably 5° C.3. The method according to claim 1 , wherein the concrete passes along a temperature profile during the hydration claim 1 , which is produced by a temperature change of the contact surfaces of the walls of the mould with the concrete.4. The method according to claim 2 , wherein the temperature profile includes an increase in the temperature of the concrete claim 2 , such that the concrete is heated as ...

METHOD FOR FORMING ARTICLES THROUGH CASTING OR INJECTION MOLDING

Various embodiments of the invention include a method for combining slurry components to form a solid object. Various particular embodiments include a method including: combining a first slurry component with a second slurry component to form a homogenized slurry, wherein the first slurry component includes: a catalyst, and a vinyl binder, and wherein the second slurry component includes: a siloxane binder, and wherein at least one of the first slurry component and the second slurry component includes a particulate composition; introducing the homogenized slurry into a die; and curing the homogenized slurry in the die to form the solid object. 1. A method for combining slurry components to form a solid object , the method comprising:combining a first slurry component with a second slurry component to form a homogenized slurry, a catalyst, and', 'a vinyl binder, and, 'wherein the first slurry component includes 'a siloxane binder, and', 'wherein the second slurry component includeswherein at least one of the first slurry component and the second slurry component includes a particulate composition;introducing the homogenized slurry into a die; andcuring the homogenized slurry in the die to form the solid object.2. The method of claim 1 , further comprising storing the first slurry component at approximately room temperature in a first reservoir claim 1 , and storing the second slurry component at approximately room temperature in a second reservoir.3. The method of claim 2 , wherein prior to the combining step claim 2 , the first slurry component and the second slurry component are fluid and stable at approximately room temperature.4. The method of claim 1 , wherein the combining step and the curing step occur between approximately room temperature and approximately 60° C.5. The method of claim 1 , wherein the combining step includes mixing the first slurry component with the second slurry component at a volumetric ratio ranging from 1:1 to 1:10.6. The method of claim ...

INJECTION MOLDING OF AQUEOUS SUSPENSIONS OF HIGH-TEMPERATURE CERAMICS

A method for ambient temperature injection molding of ceramic bodies, including combining ceramic powder, water, and dispersant to yield a first admixture, combining water and water soluble polymer to yield a second admixture, combining the first and second admixture to yield a homogeneous slurry, flowing the homogeneous slurry into a mold to yield a molded green body, and removing the green body from the mold, all of which are performed at room temperature. The slurry exhibits yield psuedoplastic flow characteristics and contains more than 50 weight percent ceramic powder and less than 5 weight percent water soluble polymer. 1. A method for injection molding , comprising:a) combining ceramic powder, water, dispersant and water soluble polymer to yield a slurry;b) injecting the slurry into a mold to yield a shaped slurry pseudobody;c) drying the shaped slurry psuedobody to yield a green body; andd) removing the green body from the mold;wherein steps a), b), c) and d) are performed at room temperature.2. The method of and further comprising:e) machining the green body to a desired finished shape.3. The method of and further comprising:f) calcining the green body to remove binder to yield a calcined body; andg) sintering the calcined body to yield a dense body.4. The method of claim 1 , wherein the slurry contains more than 50 weight percent ceramic powder; and wherein the slurry contains less than 5 weight percent water soluble polymer.5. The method of wherein the ceramic powder is alumina and wherein the water soluble polymer is polyvinylpyrrolidone.6. The method of wherein the alumina powder has an average particle size of about 0.5 mm and wherein the alumina powder has a BET surface area of about 7.8 m/gm.7. The method of wherein the slurry resists flow as a solid until sufficient shear force is applied to urge the slurry to flow as a liquid.8. A method for ambient temperature injection molding of ceramic bodies claim 1 , comprising:a) combining ceramic powder, ...

HOLLOW MICRONEEDLE WITH BEVELED TIP

An article having at least one microneedle () is provided. The microneedle includes a base (), an elongated body () having a central axis () and a body diameter (), a tip portion (), and a hollow channel (). The a tip portion includes a tip (), a first bevel face () oriented diagonally with respect to the central axis and extending through at least 75% of the body diameter, a second bevel face () oriented substantially perpendicular to the central axis and intersecting the first bevel face, and a bevel opening defined by a first edge () of the first bevel face and a second edge () of the second bevel face. The hollow channel extends axially into the body from the bevel opening (). 1. An article , comprising: a base;', 'an elongated body having a central axis and a body diameter;', 'a tip portion comprising a tip, a first bevel face oriented diagonally with respect to the central axis and extending through about 75% to about 95% of the body diameter, a second bevel face oriented substantially perpendicular to the central axis and intersecting the first bevel face, a bevel opening defined by a first edge of the first bevel face and a second edge of the second bevel face; and', 'a hollow channel that extends axially into the body from the bevel opening;, 'at least one microneedle, the at least one microneedle comprisingwherein the second bevel face extends through no more than about 25% of the body diameter.2. The article of claim 1 , wherein the at least one microneedle comprises a wall having a width at the second bevel face claim 1 , wherein the second bevel face has a length claim 1 , wherein the length of the second bevel face is equal to the width of the wall at the second bevel face.3. The article of claim 1 , wherein the first bevel face defines a plane.4. The article of claim 1 , wherein the first bevel face comprises a plurality of intersecting planes.5. The article of claim 4 , wherein two or more of the planes intersect at a third edge claim 4 , wherein the ...

Articulated Molding Insert

A method and apparatus for forming a part having a cavity with a complex contour is presented. The molding apparatus comprises a mold cavity and a molding insert. The mold cavity is formed by a first mold portion and a second mold portion. The molding insert is within the mold cavity, wherein the molding insert has a forming surface, and wherein the molding insert is configured to move in more than one direction relative to the first mold portion 1. An apparatus comprising:a molding insert having a forming surface; anda shaft connected to the molding insert by an articulating joint.2. The apparatus of claim 1 , wherein the articulating joint is a ball joint.3. The apparatus of further comprising:a restraint associated with the shaft.4. The apparatus of further comprising:a first mold portion; anda second mold portion, wherein the first mold portion and the second mold portion form a mold cavity, and, wherein the molding insert is positioned within the mold cavity.5. The apparatus of claim 4 , wherein the shaft extends through the first mold portion.6. The apparatus of further comprising:a restraint on the shaft, wherein the first mold portion is between the restraint and the molding insert.7. The apparatus of claim 1 , wherein the articulating joint is associated with a second end of the molding insert claim 1 , and wherein the molding insert further comprises an alignment feature associated with the second end.8. The apparatus of wherein the forming surface has a complex contour.9. A molding apparatus for forming a part having a cavity with a complex contour comprising:a mold cavity formed by a first mold portion and a second mold portion; anda molding insert within the mold cavity, wherein the molding insert has a forming surface, and wherein the molding insert is configured to move in more than one direction relative to the first mold portion.10. The molding apparatus of claim 9 , wherein the forming surface has a complex contour.11. The molding apparatus of ...

Mold for Making Units of a Dome Structure and Method of Using the Same

Described herein is a mold for making units of a dome structure, comprising: a first mold piece, a second mold piece, a third mold piece; the third mold piece is configured to be sandwiched between and assembled with the first and second mold pieces; wherein an assembly of the first mold piece, the second mold piece, and the third mold piece is configured to form a mold cavity; wherein the third mold piece comprises a plurality of sidewall plates; wherein the plurality of sidewall plates are perpendicular to a same spherical surface when the third mold piece is assembled with the first and second mold pieces. Described herein is also a method of using the mold, and the method comprises: assembling the plurality of sidewall plates to form the third mold piece; assembling the second mold piece and the third mold piece; assembling the first mold piece with the second mold piece and the third mold piece to form the mold cavity of a first-level mold; injecting a molding material into the mold cavity; forming a unit of a first-level dome structure by allowing the molding material to form into shape; opening the first-level mold; extracting the unit of the first-level dome structure. 1. A mold for making units of a dome structure , comprising:a first mold piece, a second mold piece, a third mold piece;wherein the third mold piece is configured to be sandwiched between and assembled with the first and second mold pieces;wherein an assembly of the first mold piece, the second mold piece, and the third mold piece is configured to form a mold cavity;wherein the third mold piece comprises a plurality of sidewall plates;wherein the plurality of sidewall plates are perpendicular to a same spherical surface when the third mold piece is assembled with the first and second mold pieces.2. The mold of claim 1 , wherein the first mold piece comprises a first spherical surface.3. The mold of claim 2 , wherein each of the plurality of sidewall plates comprises an end surface conforming ...

Method for producing a part from composite material by injecting a filled slip into a fibrous texture

A manufacturing method for a composite material part includes injecting under pressure a slip containing a refractory ceramic particle powder into the moulding cavity of an injection tooling, draining the liquid from the slip that passed through the moulding cavity and retaining the particle powder inside the moulding cavity to obtain a blank including refractory particles, demoulding the blank, and heat treating the blank to form a part. The injection tooling includes a porous material mould consisting of a moulding cavity, an enclosure of rigid material in which the porous material mould is held, the enclosure further including an injection port, a discharge vent and an injection canal connecting the injection port to the moulding cavity of the porous mould for the injection of the slip into the moulding cavity. The injection tooling includes a sacrificial capsule of porous material placed in moulding cavity.

A LOW-PRESSURE POWDER INJECTION MOLDING MACHINE, KIT AND METHOD

A low-pressure powder injection molding machine, a kit and a method thereof. The machine has a feedstock container adapted to contain (mixed feedstock, a mold and an injection device. The mold has an inlet and a cavity in which the feedstock material can set. The injection device has an injection port for supplying the mixed feedstock from the container to the mold by using pressure. The machine also has a moveable platform adapted to provide movement between the injection port of the injection device and the inlet of the mold in order to directly communicate the feedstock between the injection port and the inlet without using an intermediate conduit and thereby preventing any feedstock from setting or dissociating between the injection port and the inlet. 1. A low-pressure powder injection molding machine comprising a feedstock container adapted to contain a mixed feedstock material , a mold having an inlet in which said feedstock material can set and an injection device having an injection port for supplying said mixed feedstock material from said container to said mold by using pressure , wherein said machine further comprises a moveable platform providing relative movement between said injection port of said injection device and said inlet of said mold so that said feedstock is communicated directly between said injection port and said inlet without an intermediary conduit.2. The low-pressure powder injection molding machine as defined in claim 1 , wherein said container comprises an outlet claim 1 , and wherein said moveable platform provides movement of said injection device between said outlet and said inlet of said mold.3. The low-pressure powder injection molding machine as defined in claim 2 , wherein said moveable platform has a flange adapted to contact the outlet and seal the outlet in order to prevent feedstock from flowing out.4. The low-pressure powder injection molding machine as defined in claim 1 , wherein said moveable platform provides a linear ...

A METHOD OF FABRICATING A COMPOSITE MATERIAL PART BY INJECTING A FILLED SLURRY INTO A FIBER TEXTURE

A method of fabricating a composite material part includes placing a fiber texture in a mold including in its bottom portion a porous material part on which a first face of the texture rests, injecting a liquid under pressure into the fiber texture, the liquid containing a powder of refractory ceramic particles, and draining through the porous material part the liquid that has passed through the fiber texture, while retaining the powder of refractory ceramic particles inside said texture by the porous material part. A perforated rigid element is interposed between the bottom of the mold and the porous material part. 1. A method of fabricating a composite material part , the method comprising:forming a fiber texture from refractory ceramic fibers;placing the fiber texture in a mold including in its bottom portion a part made of porous material on which a first face of said texture rests;closing the mold with a mold cover or lid placed facing a second face of the fiber texture;injecting a liquid under pressure into the fiber texture, the liquid containing a powder of refractory ceramic particles or of refractory ceramic precursor particles;draining via the porous material part the liquid that has passed through the fiber texture, while said porous material part retains the powder of refractory ceramic particles or of refractory ceramic precursor particles within said texture so as to obtain a fiber preform filled with refractory ceramic particles or with refractory ceramic precursor particles, the liquid being discharged via at least one vent present in the bottom of the mold;drying the fiber preform;unmolding the fiber preform; andsubjecting the refractory ceramic particles or the refractory ceramic precursor particles present in the fiber preform to heat treatment so as to form a refractory ceramic matrix in said preform;a perforated rigid element being interposed between the bottom of the mold and the porous material part;wherein the perforated rigid element ...

Plated polymers with intumescent compositions and temperature indicators

A plated polymer component is disclosed. The plated polymer component may comprise a polymer support, a metal plating deposited on a surface of the polymer support, and at least one flame-retardant additive included in the polymer support. In another aspect, the plated polymer component may comprise a polymer substrate, a metal plating deposited on a surface of the polymer substrate, and a temperature-indicating coating applied to at least one of of the polymer substrate.

BONE REPLACEMENT MATERIAL AND METHOD FOR PRODUCING BONE REPLACEMENT MATERIAL

A ceramic bone replacement material and to a generative method for producing said bone replacement material, in particular ceramic bone replacement materials used in implants and preferably in spinal column implants. Generative manufacturing methods make it possible to shape the structures of the bone replacement. 113.-. (canceled)14. A method for producing a porous ceramic bone replacement material comprising producing the porous ceramic bone replacement material with a generative manufacturing method.15. A method according to claim 14 , wherein the generative method is selected from the group consisting of 3D powder bed printing claim 14 , ceramic inkjet printing claim 14 , fused deposition modelling and CAD-based stereolithography.16. A method according to claim 14 , wherein the generative method is used to produce a negative mold of the porous bone replacement material.17. A method according to claim 16 , further comprising the steps ofinfiltrating the negative mold is infiltrated with a ceramic body, andremoving the negative mold is removed and the ceramic body is sintered.18. A method according to claim 17 , wherein the negative mold is removed by melting out claim 17 , dissolving or thermal decomposition.19. A method according to claim 17 , wherein the ceramic body contains pore generators.20. A method according to claim 14 , wherein the bone replacement material is directly produced by the generative method.21. A method for producing an implant comprising a porous ceramic bone replacement material which is produced according to claim 14 , wherein the porous bone replacement material is combined with a monolithic load-bearing material to form an implant.22. A method according to claim 21 , wherein the monolithic load-bearing material is made of ceramic.23. A method according to claim 22 , wherein the bone replacement material and the monolithic load-bearing material are both molded in one work process by ceramic injection molding.24. A method according to ...

METHOD FOR FABRICATION OF A COMPOSITE PART

A method for fabrication of a composite component including a first material containing steel 316L and a second material containing zirconia powder formed in a single sintering. 16-. (canceled)7. A method for fabrication of a composite component comprising:a) forming a first injection molding composition including steel 316L powder and a second injection molding composition including zirconia powder;b) agglomerating via injection molding one of the first and second compositions to form at least a first part of a blank;c) agglomerating by injection molding the other of the first and second materials against the first part of the blank to form at least a second part of the blank;d) non-consecutively sintering the first and second compositions forming the blank to obtain the composite component formed of steel 316L and zirconia.8. A method according to claim 7 , wherein claim 7 , in a) claim 7 , grains of steel 316L powder and grains of zirconia powder are arranged to allow substantially identical shrinkage in d).9. A method according to claim 7 , further comprising a final finishing improving aesthetics of the composite component formed in d).10. A method according to claim 9 , wherein the final finishing includes machining and/or brushing and/or polishing.11. A composite component obtained by the method according to claim 7 , wherein the composite component combines claim 7 , in one piece claim 7 , two distinct materials claim 7 , respectively made from steel 316L and black zirconia.12. A composite component according to claim 7 , wherein the component forms all or part of a case claim 7 , a case middle claim 7 , a horn claim 7 , a dial claim 7 , a flange claim 7 , a bezel claim 7 , a push-piece claim 7 , a crown claim 7 , a case back cover claim 7 , a hand claim 7 , a bracelet or strap claim 7 , a link claim 7 , a clasp claim 7 , a decoration claim 7 , an applique claim 7 , or a crystal. The invention relates to a method for fabrication of a composite component and ...

METHOD FOR PREPARING CARBON/BORON CARBIDE COMPOSITE MATERIAL

A method for preparing a carbon/boron carbide composite material includes the following steps (A) providing a carbon compound, a carbon fiber, a boron compound and a binder to perform a pretreatment mixing procedure to form a precursor; (B) putting the precursor into a spray granulator for performing a granulation process and mixing the precursor to form an injection material with a uniform composition; (C) feeding the injection material into an injection molding machine for performing a compression molding process, thereby forming a carbon compound/boron compound green body; and (D) subjecting the carbon compound/boron compound green body to a two-stage heat treatment process to obtain the carbon/boron carbide composite material. 1. A method for preparing a carbon/boron carbide composite material , comprising:(A) providing a carbon compound, a carbon fiber, a boron compound and a binder to perform a pretreatment mixing procedure to form a precursor;(B) putting the precursor into a spray granulator for performing a granulation process and mixing the precursor to form an injection material with a uniform composition;(C) feeding the injection material into an injection molding machine for performing a compression molding process, thereby forming a carbon compound/boron compound green body; and(D) subjecting the carbon compound/boron compound green body to a two-stage heat treatment process to obtain the carbon/boron carbide composite material.2. The method for preparing a carbon/boron carbide composite material of claim 1 , wherein in the pretreatment mixing procedure claim 1 , the weight percentage of each component of the carbon compound claim 1 , the carbon fiber claim 1 , the boron compound claim 1 , and the binder is 1 wt % to 10 wt % for the carbon compound claim 1 , 1 wt % to 20 wt % for the carbon fiber claim 1 , 40 wt % to 70 wt % for the boron compound and 5 wt % to 35 wt % for the binder.3. The method for preparing a carbon/boron carbide composite material ...

Process for manufacturing an object from a sol-gel solution

A process for manufacturing an object made of a constituent material obtained from a sol-gel solution, the process including, successively: a) introducing the sol-gel solution into a mold of the object to be manufactured; b) gelling the sol-gel solution; c) drying the gel obtained in b) in the mold, by which the gel is converted into the constituent material of the object, wherein the mold includes a closed chamber and includes a material configured to allow evacuation of gases formed during b) and/or c).

CERAMIC COMPOSITIONS

A dried or at least partially dried ceramic feedstock, a method of preparing a dried or at least partially dried ceramic feedstock having a residual solvent content of up to about 15 wt. %, ceramic formulations comprising one or more ceramic precursors, temperature sensitive gelling agent, solvent, and having a viscosity suitable for low pressure injection molding, methods for preparing said ceramic formulations, a method of forming a ceramic article from said ceramic formulations, and a ceramic article obtainable therefrom. 129-. (canceled)30. A method of preparing a ceramic feedstock comprising:preparing a ceramic slurry comprising one or more ceramic precursors, temperature sensitive gelling agent, and solvent, andtreating the ceramic slurry under suitable conditions to obtain a dried or at least partially dried ceramic feedstock having a residual solvent content of up to about 15 wt. %, based on the total weight of the ceramic feedstock.31. The method of preparing a ceramic feedstock of claim 30 , wherein the ceramic slurry is prepared by a process comprising:mixing the one or more ceramic precursors with solvent and heating;separately dissolving gelling agent in solvent, andmixing the dissolved gelling agent with the mixture of ceramic precursors and solvent.32. The method of preparing a ceramic feedstock of claim 31 , wherein the mixture of ceramic precursors and solvent further includes a dispersant.33. The method of preparing a ceramic feedstock of claim 31 , further including mixing a reinforcing additive with the gelling agent dissolved in solvent.34. The method of preparing a ceramic feedstock of claim 30 , wherein treating the ceramic slurry comprises: cooling the ceramic slurry to below the gel point of the gelling agent claim 30 , shredding the resultant cooled ceramic gelled material claim 30 , drying and milling the shredded cooled ceramic gelled material.35. The method of preparing a ceramic feedstock of claim 30 , wherein treating the ceramic ...

METHOD FOR MANUFACTURING A CORE FOR MOULDING A BLADE

A method of manufacturing a core for molding a blade of a turbomachine, including placing a flexible ceramic sheet in a cavity of a mold in such a way as to shape the ceramic sheet, introducing a ceramic paste into the cavity of the mold, the ceramic paste forming at least one frame in contact with the ceramic sheet, and co-sintering the ceramic sheet and the frame in such a way as to rigidly join together the ceramic sheet and the frame, the frame maintaining the shape of the ceramic sheet given by the mold during the preceding co-sintering phases. 2. The method according to claim 1 , comprising a preliminary step of:cutting out recess patterns in the ceramic sheet.3. The method according to claim 2 , wherein the recess patterns have a rectangular claim 2 , triangular and/or sinusoidal shape.4. The method according to claim 2 , wherein the space between two successive recess patterns is less than 5 millimeters.5. The method according to claim 1 , wherein the ceramic sheet comprises silica and alumina.6. The method according to claim 1 , wherein the ceramic paste forming the frame comprises silica and zircon.7. The method according to claim 1 , wherein the ceramic sheet has a Young's modulus of less than 5 GigaPascals.8. The method according to claim 1 , wherein the ceramic sheet has a thickness comprised between 0.04 millimeters and 0.5 millimeters.9. A method for manufacturing a turbine engine blade comprising at least one step of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'casting the blade in a mold containing a core obtained by a method according to .'}10. (canceled) The present invention relates to a method for manufacturing a core intended to serve for casting a blade of a turbine engine.In order to improve the aerodynamic performance of blades of turbine engines, it is necessary to reduce the thickness of the trailing edge of the blades. The thickness of the trailing edge of the blades depends, on the one hand, on the thickness of the trailing edge ...

SPECIALITY CERAMIC COMPONENTS

Method for producing ceramic components, more particularly ceramic components having recesses and/or hollow spaces, there being at least one sintered ceramic part present. In order to improve the handling qualities of ceramic components, the sintered ceramic part can include a carrier or carrying section which is removed in the further processing from at least one ceramic component. 1. Method for producing ceramic components , having recesses and/or hollow spaces , there being , the method comprising:providing at least one sintered ceramic part, wherein the sintered ceramic part includes a carrier or carrying section; andin further processing, removing the carried or carrying section from at least one ceramic component.2. Method according to claim 1 , wherein the carrier or carrying section holds a multiplicity of ceramic components which are singularized by the removal.3. Method according to claim 1 , wherein the removal of the carrier or carrying section exposes at least one hollow space or recess on the at least one ceramic component.4. Method according to claim 3 , wherein the at least one hollow space or the at least one recess at least sectionally forms a passage opening in the at least one ceramic component claim 3 ,5. Method according to claim 1 , wherein the carrier or carrying section is depleted completely.6. Method according to claim 1 , wherein the sintered ceramic part is cut during the further processing.7. Method according to claim 1 , wherein the sintered ceramic part for the further processing is embedded at least sectionally into a holding composition.8. Method according to claim 7 , wherein the ceramic part is pressed into the holding composition.9. Method according to claim 8 , wherein after the further processing claim 8 , the holding composition is dissolved and/or detached from the ceramic part with or in a solvent.10. Method according to claim 9 , wherein the holding composition is water-soluble and/or alcohol-soluble and after the further ...

CERAMIC-ENCAPSULATED THERMOPOLYMER PATTERN OR SUPPORT WITH METALLIC PLATING

A method for fabricating a ceramic component is disclosed. The method may comprise: 1) forming a polymer template having a shape that is an inverse of a shape of the ceramic component, 2) placing the polymer template in a mold; 3) injecting the polymer template with a ceramic slurry, 4) firing the ceramic slurry at a temperature to produce a green body, and 5) sintering the green body at an elevated temperature to provide the ceramic component. 1. A method for fabricating a ceramic component , comprising:forming a polymer template having a shape that is an inverse of a shape of the ceramic component;placing the polymer template in a mold;injecting the mold with a ceramic slurry;firing the ceramic slurry at a temperature to produce a green body; andsintering the green body at an elevated temperature to provide the ceramic component.2. The method of claim 1 , wherein the polymer template comprises voids that are devoid of polymeric material where walls are desired in the ceramic component claim 1 , and filled regions that are filled with the polymeric material where open spaces are desired in the ceramic component.3. The method of claim 2 , wherein sintering the green body at an elevated temperature comprises volatilizing the polymer template.4. The method of claim 2 , further comprising coating a surface of the ceramic component with a metal plating.5. The method of claim 2 , wherein injecting the mold with the ceramic slurry comprises infiltrating the voids with the ceramic slurry.6. The method of claim 2 , wherein injecting the mold with the ceramic slurry comprises encapsulating the polymer template in the ceramic slurry.7. The method of claim 2 , wherein injecting the mold with the ceramic slurry comprises:infiltrating the voids with the ceramic slurry; andencapsulating the polymer template in the ceramic slurry.8. The method of claim 7 , wherein the polymer template is formed from a thermoplastic material selected from the group consisting of high density ...

Interlocked plated polymers

A plated polymer component is disclosed. The plated polymer component may comprise a polymer substrate having an outer surface, a metal plating attached to the outer surface of the polymer substrate, and at least one interlocking feature connecting the polymer substrate and the metal plating. The interlocking feature may improve the interfacial bond strength between the polymer substrate and the metal plating.

METHOD AND SYSTEM FOR MOLDED COATING ON CMC

A method of forming a coating includes providing a mold that has a flexible wall that defines a mold cavity, inserting a component that is to be coated into the mold cavity, the component having a component surface roughness and there being a coating gap defined between the component and the flexible wall of the mold cavity, introducing a molding slurry into the mold cavity, the molding slurry filling the coating gap and contacting the component so as to overcoat the component surface roughness, solidifying the molding slurry to form a green coating on the component, and consolidating the green coating to form a final coating on the component, the final coating having a coating surface roughness that is less than the component surface roughness. 1. A method of forming a coating , comprising:providing a mold that has a flexible wall that defines a mold cavity;inserting a component that is to be coated into the mold cavity, the component having a component surface roughness and there being a coating gap defined between the component and the flexible wall of the mold cavity;introducing a molding slurry into the mold cavity, the molding slurry filling the coating gap and contacting the component so as to overcoat the component surface roughness;solidifying the molding slurry to form a green coating on the component; andconsolidating the green coating to form a final coating on the component, the final coating having a coating surface roughness that is less than the component surface roughness.2. The method as recited in claim 1 , wherein the inserting includes situating the component in the mold cavity such that the coating gap is of uniform thickness.3. The method as recited in claim 1 , wherein the inserting includes using one or more bumpers in the mold cavity to space the component from the flexible wall.4. The method as recited in claim 3 , wherein the component has one or more cooling holes claim 3 , and the one or more bumpers plug the one or more cooling holes.5 ...

METHOD OF MANUFACTURING CERAMIC SINTERED BODY AND CERAMIC SINTERED BODY

There is provided a manufacturing method including: forming a molded body element with a molding material containing a ceramic powder and a binder; forming a ceramic molded body by disposing at least one molded body element in a mold and then injecting a molding material containing a ceramic powder and a binder into the mold and graft molding a graft molded body element to the molded body element; and forming a ceramic sintered body by degreasing and sintering the ceramic molded body. A graft connecting surface of the molded body element to which the graft molded body element is graft molded is formed so as to have a surface roughness of 2 μm or more in terms of Ra. 1. A method of manufacturing a ceramic sintered body , comprising:forming a molded body element with a molding material containing a ceramic powder and a binder;forming a ceramic molded body by disposing the at least one molded body element in an injection molding mold and then injecting a molding material containing a ceramic powder and a binder into a space within the injection molding mold and graft molding a graft molded body element to the molded body element; andforming the ceramic sintered body by degreasing and sintering the ceramic molded body, whereina graft connecting surface of the molded body element to which the graft molded body element is graft molded is formed so as to have a surface roughness of 2 μm or more in terms of Ra.2. The method of manufacturing the ceramic sintered body according to claim 1 , wherein the molded body element is previously increased in temperature to 5° C. or more lower than a melting point of the binder contained in the molded body element before the graft molded body element is graft molded.3. The method of manufacturing the ceramic sintered body according to claim 2 , wherein the molded body element is previously increased in temperature to 32° C. or higher.4. The method of manufacturing the ceramic sintered body according to claim 1 , applied to a method of ...

Slider for Slide Fastener

Provided is a slider having appearance or texture which cannot be obtained with a slider body made of metal or synthetic resin in the related art and further having properties superior than those of sliders in the related art. A slider of an embodiment of the invention includes a slider body formed by sintered bodies containing zirconium oxide as a main component and a tab held by a tab attaching portion of the slider body. 1. A slider for a slide fastener , the slider including:a slider body where an upper blade plate and a lower blade plate are connected by a guide post and a tab attaching portion is disposed on a top surface of the upper blade plate; anda tab held by the tab attaching portion,wherein the slider body is formed by a sintered body containing zirconium oxide as a main component.2. The slider according to claim 1 ,wherein the slider body includes a first sintered member including the upper blade plate, the lower blade plate, and the guidepost and a second sintered member which forms the tab attaching portion and is formed separately from the first sintered member, andthe second sintered member is fixed to the first sintered member via an adhesive agent.3. The slider according to claim 2 ,wherein the second sintered member includes a first attaching post portion fixed to a shoulder opening side on a top surface of the upper blade plate, a second attaching post portion fixed to a rear opening side on the top surface of the upper blade plate, and a bridging portion bridged between upper end portions of the first and the second attaching post portions,the upper blade plate includes a first protruding portion protruding from an end portion on the shoulder opening side on the top surface of the upper blade plate and a second protruding portion protruding from an end portion on the rear opening side on the top surface of the upper blade plate, andthe second sintered member includes a first fitting hole portion to fit the first protruding portion therein, the ...

PRESSURE DIE CASTING MOLD FOR PRODUCING A CASTING

A pressure die casting mold for producing a casting which is part of an integral toilet having a body, a water ring, and a tank, wherein the casting, as an integral component, includes the water ring and the tank which is open on the upper side. The pressure die casting mold is composed of at least five molded parts which are interconnectable in a releasable manner, namely of a base part, two side parts having in each case one half of a front wall, a rear wall, and a cover part. The molded parts delimit a cavity which corresponds to the outer shape of the casting. A wedge element, which at least in portions delimits the inner shape of the water tank, is provided on the base part. 112. A pressure die casting mold for producing a casting which is part of an integral toilet comprising a body , a water ring , and a tank , wherein the casting , as an integral component , includes the water ring and the tank which is open on the upper side , characterized in that the pressure die casting mold is composed of at least five mold parts which are interconnectable in a releasable manner , namely of a base part , two side parts having in each case one half of a front wall that is molded thereon , a rear wall , and a cover part , wherein the mold parts delimit a cavity which corresponds to the outer shape of the casting , and wherein on the base part a wedge element () which at least in portions delimits the inner shape of the water tank is provided.2. The pressure die casting mold according to claim 1 , wherein a second claim 1 , separately movable wedge element which claim 1 , in the casting position claim 1 , is assembled with the wedge element provided on the base part and forms a molding wedge which delimits the overall inner shape of the water tank is provided.3. The pressure die casting mold according to claim 2 , wherein the formed molding wedge has a shape which claim 2 , toward the free end of said molding wedge claim 2 , tapers in the x-direction and the y-direction.4. ...

FUNCTIONAL ECOSTONE AND METHOD FOR MANUFACTURING SAME

Disclosed are a functional Ecostone and a method for manufacturing the same, wherein the functional Ecostone is characterized in that, on the basis of 100 parts by weight of a raw material formed by mixing 30-60 wt % of gypsum, 20-40 wt % of calcium carbonate, and 10-30 wt % of water, 1-30 parts by weight of a rose geranium extract, 2-10 parts by weight of basalt fibers, 2-10 parts by weight of mulberry fibers, 1-30 parts by weight of phytoncide, 1-30 parts by weight of ocher, and 1-30 parts by weight of charcoal are mixed. 1. A functional ecostone in which on the basis of 100 parts by weight of a raw material formed by mixing 30 to 60 wt % of gypsum , 20 to 40 wt % of calcium carbonate , and 10 to 30 wt % of water , 1 to 30 parts by weight of a rose geranium extract , 2 to 10 parts by weight of basalt fibers , 2 to 10 parts by weight of mulberry fibers , 1 to 30 parts by weight of phytoncide , 1 to 30 parts by weight of ocher , and 1 to 30 parts by weight of charcoal are mixed.2. The functional ecostone of claim 1 , wherein the surface of the ecostone is nanosilver-coated.3. A method for manufacturing a functional ecostone comprising: forming a raw material by mixing 30 to 60 wt % of gypsum claim 1 , 20 to 40 wt % of calcium carbonate claim 1 , and 10 to 30 wt % of water; forming a mixture by mixing 1 to 30 parts by weight of a rose geranium extract claim 1 , 2 to 10 parts by weight of basalt fibers claim 1 , 2 to 10 parts by weight of mulberry fibers claim 1 , 1 to 30 parts by weight of phytoncide claim 1 , 1 to 30 parts by weight of ocher claim 1 , and 1 to 30 parts by weight of charcoal on the basis of 100 parts by weight of the raw material; and injecting the mixture into a molding frame or a mold and then demolding the mixture. The present invention relates to a functional ecostone and a method for manufacturing the same, and more particularly, to a functional ecostone and a method for manufacturing the same, in which on the basis of 100 parts by weight of a ...

METHOD OF MANUFACTURING WING ELEMENT AND METHOD OF MANUFACTURING BLADE

A method of manufacturing a wing element that is provided inside a gas turbine and through which a fluid passes and a method of manufacturing a blade are provided. The method of manufacturing the wing element includes preforming the wing element; disposing the wing element inside a mold; sequentially melting the wing element inside the mold along one direction using a heating device; and solidifying the melted wing element using a cooling device. 1. A method of manufacturing a wing element that is provided inside a gas turbine and through which a fluid passes , the method comprising:preforming the wing element;disposing the wing element inside a mold;sequentially melting the wing element inside the mold along one direction using a heating device; andsolidifying the melted wing element using a cooling device.2. The method of claim 1 , wherein the wing element is preformed using a three-dimensional printing technique.3. The method of claim 1 , further comprising:after the preforming the wing element,attaching a reinforcing member to the wing element to prevent shrinkage due to a solidification of the wing element.4. The method of claim 1 , further comprising:after the preforming the wing element,attaching a seed member having a single crystal structure to a portion of the wing element in which the melting is started.5. The method of claim 4 , wherein the wing element is melted along the one direction such that a crystallographic direction of the wing element is aligned with a crystallographic direction of the seed member.6. The method of claim 1 , further comprising:after the disposing the wing element inside the mold,injecting ceramic slurry to an inside of the wing element and to a gap between the wing element and the mold for a solidification.7. The method of claim 1 , wherein the heating device includes:a support disposed outside the mold and aligned in the one direction; anda heating portion provided at the support and heating the wing element inside the mold.8. ...

Multi-component composition for producing an aqueous coating mass

A composition consisting essentially of (a) 1 to 30 wt. % of a hydrogen phosphate selected from the group consisting of mono and dihydrogen phosphates of sodium, potassium, ammonium, magnesium, calcium, aluminium, zinc, iron, cobalt, and copper; (b) 1 to 40 wt. % of a compound selected from the group consisting of oxides, hydroxides, and oxide hydrates of magnesium, calcium, iron, zinc, and copper; (c) 40 to 95 wt. % of a particulate filler selected from the group consisting of glass; mono-, oligo- and poly-phosphates of magnesium, calcium, barium and aluminium; calcium sulfate; barium sulfate; simple and complex silicates; simple and complex aluminates; simple and complex titanates; simple and complex zirconates; zirconium dioxide; titanium dioxide; aluminium oxide; silicon dioxide; silicon carbide; aluminium nitride; boron nitride and silicon nitride; and (d) 0 to 25 wt. % of a constituent that differs from constituents (a) to (c).

NOVEL BORON CARBIDE COMPOSITE

The present disclosure relates to novel boron carbide (BC) composite material and the method of making and using the novel boron carbide (BC) composite. 1. A composite material comprising a sintered product of a mixture comprising 70-95 wt. % of boron carbide (BC) , 2-15 wt. % of tungsten carbide (WC) , and 3-15 wt. % of yttrium oxide (YO) , wherein said boron carbide , tungsten carbide , and yttrium oxide are substantially uniformly distributed in the sintered product.2. The composite material of claim 1 , wherein the mixture comprises 70-90 wt. % of boron carbide (BC) claim 1 , 5-15 wt. % of tungsten carbide (WC) claim 1 , and 5-15 wt. % of yttrium oxide (YO).3. The composite material of claim 1 , wherein the sintered product has a relative density of 90-99%.4. The composite material of claim 1 , wherein the sintered product is obtained under substantially pressureless condition at a temperature range of 1600-2600° C.5. The composite material of claim 1 , wherein said boron carbide is first attrition milled with tungsten carbide in ethanol to provide attrition milled mixture of boron carbide and tungsten carbide claim 1 , wherein said boron carbide after attrition milled is substantially free of boron oxide (BO).6. A method of preparing the composite material of claim 1 , comprising:{'sub': 2', '3, 'attrition milling boron carbide and tungsten carbide in ethanol to provide an attrition milled powder comprising boron carbide and tungsten carbide, wherein said boron carbide after the attrition milling is substantially free of boron oxide (BO);'}preparing an aqueous suspension comprising the attrition milled boron carbide and tungsten carbide powder, and yttrium oxide powder;injecting mold said suspension and making it a dried mixture; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'sintering the dried mixture at a temperature range of 1600-2600° C. to provide the composite material of .'}7. The method of claim 6 , wherein the sintering is carried out at ...

Processes for the manufacture of light-weight inorganic foam materials and articles produced thereby

In a process for manufacturing foamed material, particles of a plant material as an organic expansion agent, particles of an inorganic base material and water are blended together. The blend is heated and pressurized to homogenize and liquefy or plasticize it. The blend is then extruded through a die where, in the course of the extrusion, superheated water in the blend vaporizes to foam the blend, the extrudate then being cooled and fired. 1. A process for manufacturing foamed material comprising blending particles of a plant material as an organic expansion agent , particles of an inorganic base material and water to produce a blend , heating and pressurizing the blend to homogenize and liquefy it , extruding the blend through a die where , in the course of the extrusion , superheated water in the blend vaporizes to foam the blend , and cooling the extrudate.2. The process of claim 1 , the organic plant material including at least one of corn claim 1 , wheat claim 1 , rice claim 1 , potato claim 1 , apple claim 1 , and carrot.3. The process of claim 2 , the expansion agent including chopped corn.4. The process of claim 1 , further comprising firing the extrudate to drive off remaining water and organic content in the extrudate.5. The process of claim 4 , further comprising the firing being such as to sinter the inorganic material content of the cooled extrudate.6. The process of claim 4 , further comprising the firing being such as to reaction cure the inorganic material content of the cooled extrudate.7. The process of claim 4 , further comprising cutting the fired extruded claim 4 , foamed material into lengths for use in producing an article of manufacture.8. The process of claim 4 , wherein the extrudate is injection moulded before firing.9. The process of claim 1 , wherein the plant material is chopped to produce particles up to an eighth of an inch across.10. The process of claim 1 , wherein the expansion agent is present in a weight proportion of between 25% ...

GROUT VACUUM SYSTEMS AND METHODS

Various implementations include a device for pumping grout. The device includes a body and a pump. The body defines a first opening, a second opening, and a third opening. Each of the first, second, and third openings is in fluid communication with each other. The first opening includes a first one-way valve configured to allow the flow of grout toward the second and third openings, and the second opening includes a second one-way valve configured to allow the flow of grout away from the first and third openings. The pump is sealingly coupled to the third opening and in fluid communication with the first and second openings. The pump is configured to increase and decrease pressure within the body to cause the flow of grout from the first opening to the second opening. 1. A device for pumping grout , the device comprising:a body defining a first opening, a second opening, and a third opening, each of the first, second, and third openings being in fluid communication with each other, wherein the first opening includes a first one-way valve configured to allow the flow of grout toward the second and third openings, and the second opening includes a second one-way valve configured to allow the flow of grout away from the first and third openings; anda pump sealingly coupled to the third opening and in fluid communication with the first and second openings, the pump being configured to increase and decrease pressure within the body to cause the flow of grout from the first opening to the second opening.2. The device of claim 1 , wherein the pump causes the grout to flow from the first opening to the third opening when the pump decreases pressure within the body claim 1 , and the pump causes the grout to flow from the third opening to the second opening when the pump increases pressure within the body.3. The device of claim 1 , wherein the first one-way valve and the second one-way valve are swing check valves.4. The device of claim 1 , wherein the first one-way valve and ...

METHOD FOR PRODUCTION OF BUILDING MATERIAL CONTAINING FIBER CEMENT

The present invention relates to a method for economically producing a building material containing fiber cement having different patterns used for indoor and outdoor claddings of the buildings in a short time. By performing said inventive method it is possible to produce building materials having variety of surface patterns and/or having different patterns on their faces. 1100. A method () for producing building materials basically containing cement , a filler material natural cellulose and/or polyvinyl acetate (PVA) and synthetic fiber like carbon fiber or glass fiber is characterized by the steps of;{'b': '101', 'closing the molds (),'}{'b': '102', 'feeding fiber cement mud to due inside of the closed molds (),'}{'b': '103', 'pressurizing the mud inside the mold (),'}{'b': '104', 'discharging the mud inside the mold and equalizing the inner pressure with the outer pressure (),'}{'b': '105', 'charging it to the inside of the mold (),'}{'b': '106', 'popping the product inside out the mold by sweltering due water by counter air (),'}{'b': 107', '108, 'taking the popped out product born the mold () and sweltering the mold ).'}2100. A method () according to wherein the fiber cement mud is fed into the mold by a pump.3100102. A method () according to claim 1 , wherein feeding valves providing the feeding of the mud into the mold are closed and the mud inside the mold is pressurized by feeding air into the mold after feeding fiber cement mud to the inside of the molds ().4100. A method () according to claim 3 , wherein the water inside the mud moves toward the porous surface of the mold which leads solidifying of the mud.5100103. A method () according to claim 3 , wherein pressurizing process () continues until time deserved thickness of the mud is realized.6100. A method () according to claim 5 , wherein mud discharging valve is opened tor discharging the surplus amount of mud and inside pressure of the mold is equalized with the outside pressure when the deserved ...

METHOD FOR MANUFACTURING METAL PRODUCTS HAVING IRREGULAR SHAPES

A method for manufacturing metal product having irregular shapes includes steps of providing powder and binding agent, and mixing the powder and binding agent as a mixed feed. The mixed feed is heated to a plastic state, and injected into a mold cavity to form a plurality of blanks. The blanks are degreased to remove the binding agent and are sintered to form workpieces. A substrate or substrates and the workpieces form different parts of the metal product having irregular shapes. The workpieces are disposed on substrate to form a preform and the preform is bonded to form the metal products of irregular shape. 1. A method for manufacturing metal products having irregular shapes comprising:mixing a powder and a binding agent as a feed;heating the feed to a plastic state;injecting the feed into a plurality of molds and forming a plurality of blanks;degreasing the blanks;sintering the plurality of degreased blanks to form a plurality of workpieces;providing a substrate, arranging the plurality of workpieces on the substrate in a preform matching a final metal product having an irregular shape; andbonding the preform to form the final metal product.2. The method of claim 1 , wherein component of the substrate is different from a component of the workpiece.3. The method of claim 2 , wherein the plurality of blanks are formed by powder of same composition with a same component claim 2 , or formed by powder of same composition with different same components or formed by powder of different components.4. The method of claim 1 , wherein a process method to form the substrate is different from a process method to form the workpiece.5. The method of claim 4 , wherein the substrate is formed by a forging method.6. The method of claim 1 , wherein the powder is selected from metal powder claim 1 , ceramic powder claim 1 , or pre-alloyed powder.7. The method of claim 1 , wherein the welding method comprises high temperature heating welding claim 1 , laser welding or resistance ...

SINTERING PROCESS FOR CERAMIC SHEETS

Disclosed is a sintering process for ceramic sheets. After biscuit firing and glazing, a green body is placed in a kiln, wherein the temperature of the kiln is controlled such that: when the kiln temperature is 100-400° C., the temperature rise duration is 1-2 hours when the kiln temperature is 400-900° C., the temperature rise duration is 2-3 hours; when the kiln temperature is 900-1100° C., the temperature rise duration must reach 3 hours or more; when the kiln temperature is 1100-1350° C. the temperature rise duration is controlled to be 3-4 hours; and after the temperature reaches 1350° C., heat-preservation cooling is conducted; when the temperature drops to 1230-1270° C., the temperature is raised again to 1290-1310° C.; when the temperature drops again to 880-920° C., the kiln cover is opened for cooling, and the finished product is taken out. 1. A sintering process for ceramic sheets , putting a green body after biscuit firing and glazing into a kiln , characterized in that , the temperature control of the kiln comprises the following steps in sequence:a. heating up slowly when the temperature of the kiln ranges from 100 to 400° C., the temperature rise duration ranges from 1 to 2 hours;b. heating up rapidly when the temperature of the kiln ranges from 400 to 900° C., the temperature rise duration ranges from 2 to 3 hours;c. heating up very slowly when the temperature of the kiln ranges from 900 to 1100° C., the temperature rise duration is longer than 3 hours;d, when the temperature of the kiln ranges from 1100 to 1350° C., controlling the temperature rise duration ranges from 3 to 4 hours;e. when the temperature of the kiln reaches 1350° C., cooling with a very slow cooling rate;f. when the temperature of the kiln falls to 1230 to 1270° C., raising the temperature to 1290 to 1310° C.;g. opening, the kiln and taking the product out of the kiln after re-cooling the kiln down to the range from 880 to 920° C.2. The sintering process of claim 1 , characterized ...

METHOD AND APPARATUS FOR IMPROVING CORE MANUFACTURING FOR GAS TURBINE COMPONENTS

An apparatus and method for producing a core for use in casting a gas turbine component is provided. The apparatus comprises a system having a cavity block with an upper portion, a lower portion, and a recessed cavity in each of the upper portion and the lower portion. Positioned within the cavity block is an adapter insert, and within the adapter insert is positioned a core die insert, where the core die insert is fabricated from a sacrificial material and has a hollow internal profile corresponding to an external surface of a core. A ceramic-based material is supplied to the core die insert where it solidifies. The core die insert is placed into a water-based solution and the core die insert is removed from around the core. 1. A system for producing a core for use in casting a gas turbine component comprising:a cavity block having an upper portion, a lower portion, a recessed cavity in each of the upper portion and the lower portion, and a locking mechanism removably coupling the upper portion to the lower portion;an adapter insert having a first portion and a second portion, the adapter insert sized to fit within the recessed cavity of the cavity block; and,a core die insert positioned within the adapter insert, the core die insert fabricated from a sacrificial material and having a hollow internal profile corresponding to a core for the gas turbine component.2. The system of further comprising a feed plate positioned adjacent a split line in the cavity block.3. The system of claim 1 , wherein the locking mechanism applies a pressure to the adapter insert and core die insert.4. The system of claim 1 , wherein the adapter insert is fabricated by an additive manufacturing process.5. The system of claim 1 , wherein the core die insert is fabricated by an additive manufacturing process.6. The system of claim 1 , wherein the core die insert is fabricated in a single piece.7. The system of claim 1 , wherein the core die insert is fabricated in multiple pieces.8. The ...

SEALED HONEYCOMB STRUCTURE

A sealed honeycomb structure may include porous walls dividedly forming inlet cells and outlet cells extending from an end surface of an inlet side to an end surface of an outlet side, inlet and outlet side sealing portion , and an inlet side sealing portion, wherein at least one outlet cell is a reinforced cell where a reinforcing part for reinforcing the outlet cell is formed at at least one corner portion at which the walls on a cross-section vertical to an extending direction of the cell cross each other, wherein the inlet cell is a non-reinforced cell where the reinforcing part is not formed at all the corner portions at which the walls on the cross-section vertical to the extending direction of the cell cross each other, and wherein the reinforcing parts of the reinforced cells are formed at a section of the honeycomb structure from the end surface of the outlet side in the extending direction of the cell. 1. (canceled)2. A sealed honeycomb structure comprising:porous walls dividedly forming a plurality of cells extending from an end surface of an inlet side to an end surface of an outlet side, the plurality of cells being a plurality of fluid channels;an outlet side sealing portion mounted at openings of predetermined cells in the end surface of the outlet side so as to form inlet cells where the end surface of the inlet side is open and the end surface of the outlet side is sealed; andan inlet side sealing portion mounted at openings of remaining cells in the end surface of the inlet side so as to form outlet cells where the end surface of the outlet side is open and the end surface of the inlet side is sealed,wherein at least one cell among the outlet cells is a reinforced cell where a reinforcing part for reinforcing the outlet cell is formed at at least one corner portion at which the walls on a cross-section vertical to an extending direction of the cell cross each other,wherein the inlet cell is a non-reinforced cell where the reinforcing part is not ...

INJECTION MOLD SYSTEM FOR COMPONENT CORE

An injection mold system for injecting slurry into an internal portion of an injection mold component core is disclosed. The system may include a fill clip for injecting slurry into an internal portion of an injection mold component core including a fill member for injecting slurry into the internal portion of the injection mold component core, and a latch member for removably coupling the fill member with the injection mold component core. The system may also include a fill reservoir for collecting excess slurry from the internal portion of the injection mold component core. The fill reservoir may also redistribute the excess slurry back into the internal portion of the injection mold component core. 1. A fill clip for injecting slurry into an internal portion of an injection mold component core , the fill clip comprising:a fill member sized to engage a first side of the injection mold component core, the fill member having at least one slurry input for receiving the slurry and a plurality of slurry outputs positioned to output the slurry into the internal portion of the injection mold component core; anda latch member coupled with the fill member, the latch member configured to removably couple the fill member with the injection mold component core.2. The fill clip of claim 1 , wherein the latch member includes a metal clipping mechanism.3. The fill clip of claim 1 , further comprising a first moldable member coupled to an inner surface of the fill member claim 1 , the moldable member configured to conform to the first side of the injection mold component core.4. The fill clip of claim 3 , further comprising a second moldable member coupled to the inner surface of the latch member claim 3 , the second moldable member configured to conform to a second side of the injection mold component core claim 3 , the second side opposing the first side.5. The fill clip of claim 1 , wherein fill member includes an inner surface having a shape that corresponds to a shape of the ...

Sealed honeycomb structure

A sealed honeycomb structure may include porous walls dividedly forming inlet cells and outlet cells extending from an end surface of an inlet side to an end surface of an outlet side, inlet and outlet side sealing portion 5 b , and an inlet side sealing portion, wherein at least one outlet cell is a reinforced cell where a reinforcing part 6 for reinforcing the outlet cell 2 b is formed at at least one corner portion 21 a at which the walls on a cross-section vertical to an extending direction of the cell cross each other, wherein the inlet cell is a non-reinforced cell where the reinforcing part is not formed at all the corner portions at which the walls on the cross-section vertical to the extending direction of the cell cross each other, and wherein the reinforcing parts 6 of the reinforced cells 22 are formed at a section of the honeycomb structure from the end surface of the outlet side in the extending direction of the cell.

PRODUCTION PROCESS FOR NITROGEN FOAM CONCRETE SELF-INSULATION BLOCK AND FOAMING DEVICE THEREOF

Provided is a production process for a nitrogen foamed concrete self-insulating block, comprising the following steps: pre-preparing a foaming liquid filled with nitrogen, pre-preparing a concrete slurry, preparing a foamed concrete slurry, casting moulding, carrying out thermal insulating and demoulding. At the same time, further provided is a foaming device used for the production process for a nitrogen foamed concrete self-insulating block, comprising a foaming agent storage tank, a vacuum foaming tank, a compressed nitrogen pipe, a first transfer pump and a second transfer pump. The block has the advantages of a low heat conductivity coefficient and durability. 1. A production process for a nitrogen foamed concrete self-insulation block comprising: mixing an animal protein foaming agent with water to form the foaming liquid; and', 'filling nitrogen into the foaming liquid to form the foaming liquid filled with nitrogen;, 'pre-preparing a foaming liquid filled with nitrogen includingpre-preparing a concrete slurry including: adding material and water into a stirring device, and stirring and mixing them to form the concrete slurry;preparing a foamed concrete slurry including: adding the foaming liquid filled with nitrogen into the concrete slurry and stirring sufficiently to obtain the foamed concrete slurry;casting moulding including: injecting the foamed concrete slurry into a mold, and molding by casting; andthermal insulating and demolding including: insulating and maintaining the molded foamed concrete for a period of time, and then demolding.2. The production process according to claim 1 , wherein a ratio of the animal protein foaming agent to the water in the foaming liquid is 1:25.3. The production process according to claim 1 , wherein a ratio of the density of the foamed concrete slurry to the dry density of the foamed concrete slurry is 70:100.4. A nitrogen foaming device applicable to the production process according to claim 1 , comprising:a foaming ...

INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD

An injection molding apparatus including a ceramic powder material injection device, a supercritical fluid providing device, and a mold is provided. The ceramic powder material injection device is adapted to contain a ceramic powder material. The supercritical fluid providing device is adapted to provide a supercritical fluid to the ceramic powder material injection device. The mold has a molding concavity, wherein the ceramic powder material injection device is adapted to mix the ceramic powder material and the supercritical fluid to form a mixed material and inject the mixed material into the molding concavity. In addition, an injection molding method is also provided. 1. An injection molding apparatus comprising:a ceramic powder material injection device adapted to contain a ceramic powder material;a supercritical fluid providing device adapted to provide a supercritical fluid to the ceramic powder material injection device; anda mold having a molding concavity, wherein the ceramic powder material injection device is adapted to mix the ceramic powder material and the supercritical fluid to form a mixed material and inject the mixed material into the molding concavity.2. The injection molding apparatus according to claim 1 , comprising a pipe and a pressure sensing element claim 1 , wherein the pipe is connected between the ceramic powder material injection device and the supercritical fluid providing device claim 1 , the supercritical fluid providing device is adapted to provide the supercritical fluid to the ceramic powder material injection device via the pipe claim 1 , and the pressure sensing element is arranged at the pipe.3. The injection molding apparatus according to claim 1 , wherein the supercritical fluid providing device comprises a gas pressurizing unit claim 1 , and the gas pressurizing unit is adapted to pressurize a gas to form the supercritical fluid.4. The injection molding apparatus according to claim 1 , wherein the supercritical fluid ...

INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD

An injection molding apparatus including a ceramic powder material injection device, a mold, and a gas providing device is provided. The ceramic powder material injection device is adapted to contain a ceramic powder material. The mold has a molding concavity, wherein the ceramic powder material injection device is adapted to inject at least the ceramic powder material into the molding concavity. The gas providing device is adapted to provide a gas into the molding concavity to increase a pressure in the molding concavity to increase a density of the ceramic powder material in the molding concavity. In addition, an injection molding method is also provided. 1. An injection molding apparatus comprising:a ceramic powder material injection device adapted to contain a ceramic powder material;a mold having a molding concavity, wherein the ceramic powder material injection device is adapted to inject at least the ceramic powder material into the molding concavity; anda gas providing device adapted to provide a gas into the molding concavity to increase a pressure in the molding concavity to increase a density of the ceramic powder material in the molding concavity.2. The injection molding apparatus according to claim 1 , comprising a fluid providing device claim 1 , wherein the fluid providing device is adapted to provide a fluid to the ceramic powder material injection device claim 1 , and the ceramic powder material injection device is adapted to mix the ceramic powder material and the fluid to form a mixed material and inject the mixed material into the molding concavity.3. The injection molding apparatus according to claim 2 , comprising a pipe and a pressure sensing element claim 2 , wherein the pipe is connected between the ceramic powder material injection device and the fluid providing device claim 2 , the fluid providing device is adapted to provide the fluid to the ceramic powder material injection device via the pipe claim 2 , and the pressure sensing element ...

BICYCLE FRONT SPROCKET

Methods and apparatus for a composite bicycle front sprocket are disclosed herein. One embodiment discloses a composite bicycle front sprocket assembly having an outer assembly of a first material. The bicycle front sprocket assembly also has a center assembly of a second material. The center assembly is disposed at least partially within the outer assembly. The center assembly is irremovably coupled with the outer assembly. The center assembly is irremovably coupled with the outer assembly without an external fastening device to irremovably couple the center assembly with the outer assembly. 1. A bicycle front sprocket assembly comprising:an outer assembly comprising a first material; and said center assembly disposed at least partially within said outer assembly,', 'said center assembly irremovably coupled with said outer assembly, and', 'said center assembly irremovably coupled with said outer assembly without an external fastening device to irremovably couple said center assembly with said outer assembly;, 'a center assembly comprising a second material, wherein said first material has a higher modulus of elasticity than said second material,'} said crank drive ring irremovably coupled with said center assembly,', 'said crank drive ring irremovably coupled with said center assembly without an external fastening device to irremovably couple said crank drive ring with said center assembly., 'a crank drive ring disposed approximately about a center of said outer assembly,'}2. The composite bicycle front sprocket of claim 1 , wherein said outer assembly is aluminum.3. The composite bicycle front sprocket of claim 1 , wherein said center assembly is a composite material.4. The composite bicycle front sprocket of claim 1 , wherein said center assembly is carbon fiber reinforced plastic.5. The bicycle front sprocket assembly of claim 1 , wherein said outer assembly comprises:a plurality of teeth on an outer perimeter of said outer assembly; anda plurality of tabs on an ...

Systems and methods for implementing multi-layer addressable curing of ultraviolet (uv) light curable inks for three dimensional (3d) printed parts and components

A system and method are provided for implementing adjustable curing of layers of deposition materials, including ultraviolet (UV) light or photo curable ink layers, used in the formation and/or manufacture of three-dimensional (3D) printed parts, objects and components, particularly those parts, objects and components formed in 3D printers and additive material manufacturing systems such as 3D jetted ink printing systems. A multi-layer (or layer-by-layer) history of the deposited materials is developed by which to adjust an intensity of an addressable curing unit to provide complete curing to a particular layer without introducing damaging effects that may be caused by over curing the particular layer. The applied curing energy will differently penetrate a number of layers based on constitutions and/or colors of the individual layers in the number of layers to be penetrated. Discrete addressable curing of the individual layered components provides correct curing to the individual layers.

METHOD FOR MANUFACTURING INSULATOR FOR SPARK PLUG

A method for manufacturing an insulator for a spark plug includes a molding process of forming a cylindrical molded product having an axial hole that extends in a direction of an axial line, by means of injection molding using a mold that has a columnar cavity therein and a bar-shaped member disposed in the cavity and extending in the direction of the axial line. In this method, the molding process includes an injection step of injecting a material containing a ceramic. In the injection step, the material is injected into the cavity from a plurality of injection openings that are opened at an inner circumferential surface, of the mold, that forms the cavity. The plurality of injection openings include two or more injection openings located at different positions in the direction of the axial line, or two or more injection openings located at different positions in a circumferential direction. 1. A method for manufacturing an insulator for a spark plug , the method including a molding process of forming a cylindrical molded product having an axial hole that extends in a direction of an axial line , by means of injection molding using a mold that has a columnar cavity therein , and a bar-shaped member disposed in the cavity and extending in the direction of the axial line , whereinthe molding process includes an injection step of injecting a material containing a ceramic,in the injection step, the material is injected into the cavity from a plurality of injection openings that are opened at an inner circumferential surface, of the mold, that forms the cavity, andthe plurality of injection openings include two or more injection openings located at different positions in the direction of the axial line.2. The method for manufacturing the insulator for the spark plug according to claim 1 , whereinthe plurality of injection openings include two or more injection openings located at different positions in a circumferential direction at the inner circumferential surface, of ...

HONEYCOMB STRUCTURE

The honeycomb structure includes a pillar-shaped honeycomb structure body, and a circumferential coating layer disposed to surround a circumference of the honeycomb structure body, and cells which are formed at an outermost circumference of the honeycomb structure body and in which peripheries of the cells are defined by the partition walls without any lacks are defined as outermost circumference complete cells, and in a cross section of the honeycomb structure body which is perpendicular to an extending direction of the cells a minimum distance T (mm) among distances from the outermost circumference complete cells to the surface of the circumferential coating layer and a porosity P (%) of the circumferential coating layer satisfy relations of Equation (1) and Equation (2) as follows: 1. A honeycomb structure comprising:a pillar-shaped honeycomb structure body having porous partition walls defining a plurality of cells extending from an inflow end face to an outflow end face to become through channels for fluid; anda circumferential coating layer disposed to surround a circumference of the honeycomb structure body,wherein the cells which are formed at an outermost circumference of the honeycomb structure body and in which peripheries of the cells are defined by the partition walls without any lacks and the circumferential coating layer does not penetrate inner portions of the cells are defined as outermost circumference complete cells, and [{'br': None, 'i': T≧', 'P, 'sup': '−1.4', '1.5≧16×(100−); and\u2003\u2003Equation (1), {'br': None, 'i': 'P≦', '20≦75.\u2003\u2003Equation (2)], 'in a cross section of the honeycomb structure body which is perpendicular to an extending direction of the cells, a minimum distance T (mm) among distances from the outermost circumference complete cells to the surface of the circumferential coating layer and a porosity P (%) of the circumferential coating layer satisfy relations of Equation (1) and Equation (2) as follows2. The ...

SYSTEM AND PROCESS FOR MOLDING OF PARTS MADE OF FIBER CEMENT

A system and a method for molding a part from fiber cement, or fibrocement, slurry are provided. The molding is preferably made by pressure injection of the slurry. The slurry includes cementitious material, additives, fibers and water. The fibers can include polypropylene, polyethylene, polyacrylic, cellulose, and/or asbestos fibers. First and second molding sections define, at least partially, a chamber. The second molding section has at least one evacuating channel. The system includes a slurry inlet communicating with the chamber, for inserting the slurry. A bladder covers the first molding section, the bladder being inflatable for compressing the slurry between the bladder and the second molding section. A filter covers the second molding section and allows water contained in the slurry to pass through while retaining the cementitious material and fibers within the chamber. A pressurized fluid inlet port communicates with at least one conduit for inflating the bladder. 1. A system for molding a part from a slurry , the slurry comprising cementitious material , additives , fibers and water , said system comprising:a mold assembly including first and second molding sections, said first and second molding sections defining, at least partially, a chamber for receiving the slurry, the second molding section comprising at least one evacuating channel;a slurry inlet communicating with the chamber, for inserting the slurry in the chamber;a bladder covering the first molding section, the bladder being inflatable for compressing the fiber cement slurry between said bladder and the second molding section;a filter covering the second molding section, the filter being permeable and allowing the water contained in the slurry to pass through while retaining the cementitious material and fibers within the chamber; anda pressurized fluid inlet port communicating with at least one conduit for inflating the bladder.2. The system according to claim 1 , wherein the bladder is made ...

POWDER INJECTION MOLDING APPARATUS

A powder injection molding apparatus including an injection unit, mold formed of two mold parts with parting surface between first and second mold part, enclosing in assembled state of mold a mold cavity fluidically connected with injection unit via transfer channel, vibrational energy generator and transducer, and clamping unit designed to retain under the effect of clamping force first and second mold parts in contact with each other. Apparatus is characterized in that first and second mold parts include a first and second retaining hole, respectively, each extending essentially perpendicularly to parting surface and arranged opposite to each other respective to parting surface, clamping unit includes first and second pin each extending essentially perpendicularly to parting surface, wherein first and second pins cooperate in assembled state of mold with retaining portion of first and second retaining holes, respectively, to retain first and second mold parts in contact with each other.

Temperature Probe and Method for Producing a Temperature Probe

The invention relates to a temperature probe which comprises a functional ceramic probe element and a ceramic housing. The probe element is mounted in the ceramic housing so that at a face of the probe element has direct and form-fitting contact with the ceramic housing. The invention further relates to a method for producing a temperature probe. 114-. (canceled)15. A temperature probe , comprising:a functional ceramic sensor element; anda ceramic housing, wherein the ceramic sensor element is arranged in the ceramic housing so that a side face of the sensor element comprises a direct and positive locking contact with the ceramic housing.16. The temperature probe according to claim 15 , wherein the ceramic housing is an injection molded housing.17. The temperature probe according to claim 16 , further comprising two contact elements claim 16 , wherein each contact element is electrically connected to the sensor element claim 16 , and wherein the contact elements project out of the ceramic housing; an opening at one end; and', 'a cavity comprising a bottom surface on an opposite side of the housing from the opening, and a step-shaped indentation, wherein the step-shaped indentation comprises a main region and two side pockets which adjoin two opposite sides of the main region, and wherein the sensor element is arranged at least in part in the main region and each of the contact elements is arranged at least in part in one of the side pockets; and, 'wherein the ceramic housing compriseswherein the sensor element comprises two electrodes, and wherein the contact elements are electrically connected to an electrode of the sensor element by a burnt on metallization paste which is arranged in the side pockets.18. The temperature probe according to claim 15 , wherein the ceramic housing comprises:an opening at one end; anda cavity comprising a bottom surface on an opposite side of the housing from the opening and a step-shaped indentation, wherein the sensor element is ...

FIBER OPTIC FERRULE ASSEMBLY AND METHOD OF MANUFACTURING THE SAME

A fiber optic ferrule assembly is provided, which comprises a ferrule and an optical fiber received in the ferrule. The ferrule and the optical fiber are directly joined together, so as to fix the optical fiber in the ferrule. At least a part of the ferrule is directly over-molded on the optical fiber by injection molding or shrunk on the optical fiber. In the embodiments of the present invention, the ferrule is directly over-molded or shrunk on the optical fiber, so that the ferrule and the optical fiber are directly joined together. As a result, the optical fiber is stably fixed in the ferrule.

INJECTION MOLDING APPARATUS AND INJECTION MOLDING METHOD

An injection molding apparatus including a mold, an injection device and a gas supply device is provided. The injection device is adapted to inject a ceramic powder material into the mold. The gas supply device is adapted to provide a gas into the mold to form a cavity in the ceramic powder material by the gas. In addition, an injection molding method is also provided. 1. An injection molding apparatus , comprising:a mold;an injection device, adapted to inject a ceramic powder material into the mold; anda gas supply device, adapted to provide a gas into the mold to form a cavity in the ceramic powder material by the gas.2. The injection molding apparatus according to claim 1 , wherein the mold has a gas injection channel communicating the inside of the mold and the outside of the mold claim 1 , and the gas supply device is adapted to provide the gas into the mold through the gas injection channel.3. The injection molding apparatus according to claim 2 , wherein the injection device and the gas injection channel are located at a same side or different sides of the mold.4. The injection molding apparatus according to claim 2 , further comprising a pressure sensing component disposed in the gas injection channel.5. An injection molding method claim 2 , comprising:injecting a ceramic powder material into a mold by an injection device; andproviding a gas into the mold by a gas supply device to form a cavity in the ceramic powder material by the gas.6. The injection molding method according to claim 5 , wherein while the ceramic powder material is injected into the mold claim 5 , the gas is provided into the mold.7. The injection molding method according to claim 5 , wherein before the gas is provided into the mold claim 5 , the ceramic powder material is not fully filled in the mold.8. The injection molding method according to claim 7 , wherein the ceramic powder material is pushed toward an inner wall surface of the mold by the gas.9. The injection molding method ...

Tooling for the coating of lips

Tooling for the coating of lips of a turbomachine rotor sector, comprising a support for a rotor sector, a centering plate adapted to be inserted into a rotor sector, said centering plate having a central housing, a tool, said tool comprising a centering arm, adapted to be inserted into the central housing of the centering plate, a torch, adapted to spray a ceramic material, a machining tool, said tooling being configured so as to position the tool relative to the rotor sector via the centering plate, and to simultaneously perform on the rotor sector a spraying of ceramic material and a machining on two distinct sectors of the lips.

METHOD OF MANUFACTURING A CERAMIC CORE FOR MOBILE BLADE, CERAMIC CORE AND MOBILE BLADE

A method of manufacturing a ceramic core for a blade including a lower part forming a core body, an upper part forming a squealer tip recess and a set of rods for holding the upper part and the lower part together, includes: coating the rods with a material that has a flash point below 1000° C.; positioning the rods in a mould; moulding the upper and lower parts by injecting ceramic; firing the ceramic core, 1. A method of manufacturing a ceramic core for a blade comprising a lower part forming a core body , an upper part forming a recess and a set of rods contributing to holding the upper part with the lower part , the method comprising:coating the rods with a material with a flash point below a temperature threshold above which the expansion of the rod is greater than 1%;positioning the rods are positioned (POS) in a mould;moulding the upper and lower parts by a ceramic injection, the moulded upper and lower parts thus forming a single part in the mould and defining a core shape;firing the ceramic core.2. The method of manufacturing a ceramic core according to claim 1 , wherein the coating claim 1 , the positioning claim 1 , the moulding and the firing are performed in sequence.3. The method of manufacturing a ceramic core according to claim 1 , wherein the temperature threshold is 1000° C.4. Method The method of manufacturing a ceramic core according to claim 1 , wherein the expansion is greater than 2%.5. Method The method of manufacturing a ceramic core according to claim 1 , wherein a mould removal (DEM) of the core precedes the firing of the core.6. The method of manufacturing a ceramic core according to claim 1 , wherein each rod is coated on a surface that is surrounded by the recess.7. The method of manufacturing a ceramic core according to claim 1 , wherein the coating on part of the rods is a varnishing with a varnish coat.8. The method of manufacturing a ceramic core according to claim 1 , wherein the coating of the rods comprises depositing a coat of ...

METHOD FOR INJECTING A LOADED SUSPENSION INTO A FIBROUS TEXTURE AND METHOD FOR MANUFACTURING A PART MADE OF COMPOSITE MATERIAL

A method for injecting a loaded suspension into a fibrous texture having a three-dimensional or multilayer weaving includes the injection of a suspension containing a powder of solid particles into the volume of the fibrous texture. The injection of the loaded suspension is carried out by at least one hollow needle in communication with a loaded suspension supply device, each needle being movable in at least one direction extending between a first face and a second opposite face of the fibrous texture so as to inject the loaded suspension at one or more determined depths in the fibrous texture. 1. A method for injecting a loaded suspension into a fibrous texture having a three-dimensional or multilayer weaving comprising the injection of a suspension containing a powder of solid particles into the volume of the fibrous texture , wherein the injection of the loaded suspension is carried out by means of at least one hollow needle in communication with a loaded suspension supply device , each needle being movable in at least one direction extending between a first face and a second opposite face of the fibrous texture so as to inject the loaded suspension at one or more determined depths in the fibrous texture.2. The method according to claim 1 , wherein each hollow needle has an external diameter of between 0.4 mm and 0.8 mm.3. The method according to claim 1 , wherein each hollow needle has a beveled end.4. The method according to claim 1 , wherein the needle(s) is/are moved sequentially between a first face and a second opposite face of the fibrous texture claim 1 , the needle(s) being stopped at intermediate positions between these two faces claim 1 , a determined dose of loaded suspension being injected into the texture at each intermediate position.5. The method according to claim 1 , wherein the at least one needle is moved continuously between a first face and a second opposite face of the fibrous texture claim 1 , the loaded suspension being injected ...

Processes for the manufacture of lightweight ceramic materials and articles produced thereby

In a process for manufacturing foamed material an expansion agent, a ceramic base material and water are blended together. The blend is heated and pressurized to homogenize and liquefy or plasticize it. The blend is then extruded through a die where, in the course of the extrusion, superheated water in the blend vaporizes to foam the blend. To make articles of manufacture, extrudate is cut to length, machined and fired, or is injection moulded while still malleable and then fired.

SHAPED ARTICLES AND METHOD FOR MAKING THE SAME

A shaped article for use in a separation device may be produced by forming a batch mixture that includes filler material, fibrous material, and an inorganic binder, and shaping the batch mixture into a shaped structure. The fibrous material may have a Dof greater than or equal to about 4 microns. The batch mixture may include greater than or equal to about 60 parts by weight and less than or equal to about 98 parts by weight of filler material, greater than or equal to about 2 parts by weight and less than or equal to about 40 parts by weight of fibrous material, and greater than or equal to about 10 parts by weight and less than or equal to about 50 parts by weight of inorganic binder per 100 parts by weight of the sum of the filler material and fibrous material, respectively. 1. A method for producing a shaped article for use in a separation device , the method comprising:forming a batch mixture comprising filler material, fibrous material, and an inorganic binder; andshaping the batch mixture into a shaped structure, wherein:{'sub': '50', 'the fibrous material has a Dof greater than or equal to about 4 microns and an average aspect ratio of greater than or equal to about 2:1 and less than or equal to about 20:1;'}the batch mixture comprises greater than or equal to about 60 parts by weight and less than or equal to about 98 parts by weight of filler material per 100 parts by weight of the sum of the filler material and fibrous material;the batch mixture comprises greater than or equal to about 2 parts by weight and less than or equal to about 40 parts by weight of fibrous material per 100 parts by weight of the sum of the filler material and fibrous material; andthe batch mixture comprises greater than or equal to about 10 parts by weight and less than or equal to about 50 parts by weight of inorganic binder per 100 parts by weight of the sum of the filler material and fibrous material.2. The method of claim 1 , wherein the batch mixture is shaped by extrusion ...