СПОСОБ ИЗГОТОВЛЕНИЯ ТЕПЛОИЗОЛИРОВАННОЙ ГИБКОЙ ТРУБЫ

Для получения гибкой и эластичной теплоизолированной трубы стабильного качества путем предотвращения преждевременной реакции вспенивания теплоизоляционного материала, обеспечения стабильности процесса вспенивания и его управляемости внешнюю защитную трубу-оболочку экструдируют соосно рабочей трубе посредством экструзионной головки с угловым течением полимерных материалов и формуют в виде винтовой поверхности, а во внутреннюю полость между внешней защитной трубой-оболочкой и рабочей трубой подают вспенивающийся материал, образующий слой теплоизоляции между внешней защитной трубой-оболочкой и рабочей трубой, при этом температуру вспенивающегося теплоизолирующего материала поддерживают посредством системы кондиционирования, охлаждающей каналы устройства подачи и смешения вспенивающихся теплоизолирующих материалов и одновременно являющейся для них элементом их позиционирования.

ЛИНИЯ ДЛЯ ИЗГОТОВЛЕНИЯ ТЕПЛОИЗОЛИРОВАННОЙ ГИБКОЙ ТРУБЫ

Для получения гибкой и эластичной теплоизолированной трубы стабильного качества путем предотвращения преждевременной реакции вспенивания теплоизоляционного материала, обеспечения стабильности процесса вспенивания и его управляемости линия содержит последовательно расположенные разматывающее устройство подачи рабочей трубы, правильное устройство, направляющее устройство, высокоточную заливочную установку, экструзионную головку, экструдер и ванну охлаждения, причем линия снабжена двух- или многоканальной системой кондиционирования, расположенной в полости экструзионной головки и включающей позиционирующую направляющую для направления движения и исключения провисания рабочей трубы и два и более канальных узла с каналом подачи вспенивающегося теплоизолирующего материала, установленным в змеевик с циркулирующим в нем хладагентом, линия также снабжена вращающимся калибрующим устройством, расположенным в ванне охлаждения и обеспечивающим формование винтовой формы внешней защитной трубы-оболочки ...

СПОСОБ ИЗГОТОВЛЕНИЯ ТЕПЛОИЗОЛИРОВАННОЙ ГИБКОЙ ТРУБЫ

Для получения гибкой и эластичной теплоизолированной трубы стабильного качества путем предотвращения преждевременной реакции вспенивания теплоизоляционного материала, обеспечения стабильности процесса вспенивания и его управляемости внешнюю защитную трубу-оболочку экструдируют соосно рабочей трубе посредством экструзионной головки с угловым течением полимерных материалов и формуют в виде винтовой поверхности, а во внутреннюю полость между внешней защитной трубой-оболочкой и рабочей трубой подают вспенивающийся материал, образующий слой теплоизоляции между внешней защитной трубой-оболочкой и рабочей трубой, при этом температуру вспенивающегося теплоизолирующего материала поддерживают посредством системы кондиционирования, охлаждающей каналы устройства подачи и смешения вспенивающихся теплоизолирующих материалов и одновременно являющейся для них элементом их позиционирования.

Continuous extrusion or injection feeds for coating cables

APPARATUS Of EXTRUSION UNINTERRUPTED FOR the ELECTRIC MANUFACTURE OF DRIVER INSULATES

PROCEDURE AND DEVICE FOR APPLYING A COAT FROM INTERLACED INSULANT ON ELECTRICAL CONDUCTOR

METHOD AND DEVICE FOR PRODUCING RUBBER COATED METAL WIRE

ABREGE : Procédé de fabrication de fil métallique par gainage d'un fil (60) par un mélange d'élastomères en provenance d'une extrudeuse (210) comportant un canal d'alimentation (220) d'une filière de gainage (260) à travers laquelle est amené à circuler ledit fil à une vitesse nominale préétablie Vn, caractérisé en ce qu'on varie la température de l'extrémité aval (262) de la filière de gainage pour une durée prédéterminée et indépendamment du reste de celle-ci lorsque que la vitesse mesurée de circulation Vm du fil est différente de Vn.

장척체의 제조 방법

... 압출 성형기(24)에 의해 아우터 벨트 몰(11)의 본체부를 압출 성형하는 압출 성형 공정을 실행한다. 이때, 압출 성형기의 구금(27)의 내부에 형성된 테이프 안내 통로(29)에 의하여 제1의 테이프(22)를 상기 구금내의 가열 상태의 아우터 벨트 몰의 제1의 씰 립(13)의 표면으로 안내하여, 제1의 테이프를 제1의 씰 립에 고착시키는 제1의 테이프 고착 공정과, 압출 성형기의 구금의 하류측 단면에 인접하여 배치된 테이프 안내 지그(30)에 의하여 제2의 테이프(23)를 상기 구금로부터 나온 직후의 가열 상태의 아우터 벨트 몰의 제2의 씰 립(14)의 표면으로 안내하여, 제2의 테이프를 제2의 씰 립에 고착시키는 제2의 테이프 고착 공정을 실행한다.

DEVICE FOR THE TREATMENT OF VISCOUS MATERIAL AND PROCESS FOR MODIFICATION OF VISCOUS MATERIAL

PROCEDURE AND DEVICE FOR APPLYING A COAT FROM INTERLACED INSULANT ON ELECTRICAL CONDUCTOR

PLANT CALENDERING FOR REINFORCING PLIES FOR PNEUMATIC

METHOD AND DEVICE FOR MANUFACTURING RUBBER COATED METAL WIRE

PROCESS AND DEVICE Of EXTRUSION Of a PRODUCT RETICULATE

Production of laces and granules of fibre-reinforced thermoplastics

PLANT CALENDERING FOR REINFORCING PLIES FOR PNEUMATIC

ABREGE : Installation de calandrage pour la production de nappe de renfort (600) pour pneumatique, qui comporte un bâti (100), deux extrudeuses (200, 300) d'alimentation en matériau élastomère, un dispositif d'alimentation en fils de renfort (400), une calandre (500) comportant une première paire de rouleaux tournant en sens contraires, avec un premier rouleau de travail (52) et un premier rouleau de mise en forme (51) et une seconde paire de rouleaux tournant en sens contraires avec un deuxième rouleau de travail (53) et un deuxième rouleau de mise en forme (54), dans laquelle un entrefer de calandrage (59) est formé entre les cylindres de travail (52, 53) pour recevoir une première nappe de caoutchouc calandrée (57) délivrée par la première paire de rouleaux (51, 52), une seconde nappe de caoutchouc calandrée (58) délivrée par la deuxième paire de rouleaux (53, 54) et les fils de renfort (45) pour fournir la nappe de renfort (600) calandrée qui est acheminée vers la sortie de l'installation ...

EXTRUDING FOAM RESIN INSULATION ON WIRING

plastic coatingswall thickness Process for maintaining a desired by means of the extrusion process for electric cables or tubes produced from

PLANT AND PROCEDURE FOR THE PRODUCTION FROM TUBES TO DROP WAYS THE IRRIGATION

STABILIZED CLOTHS

plastic coatingswall thickness Process for maintaining a desired by means of the extrusion process for electric cables or tubes produced from

PROCESS AND DEVICE Of EXTRUSION Of a PRODUCT RETICULATE

PROCESS AND DEVICE TO MANUFACTURE A RETICULEE INSULATING MATTER INSULATING SLEEVE

Flexible sub-marine conduit for transporting hydrocarbon, has maintaining layer including ribbon rolled around armoring plies, where ribbon is covered with reinforcing layer for increasing resistance to deformation of maintaining layer

L'invention concerne une conduite flexible sous-marine destinée au transport des hydrocarbures, ladite conduite flexible comprenant, de l'intérieur vers l'extérieur, une gaine d'étanchéité interne (18), au moins une nappe d'armures de traction (14,16) enroulée autour de ladite gaine d'étanchéité interne, une couche de maintien déformable (12) comprenant au moins un ruban de maintien flexible enroulé autour de ladite nappe d'armures de traction, et au moins une structure tubulaire (10) qui entoure ladite couche de maintien, ledit ruban de maintien comportant des mèches de fibres, lesdites mèches étant orientées sensiblement selon la direction longitudinale dudit ruban de maintien ; selon l'invention ledit ruban de maintien est revêtu d'une couche de renfort en matériau polymère la résistance à la déformation de ladite couche de maintien.

Metal-containing Polymeric Reinforced Pipe, Method for Manufacturing Same and Pipeline Produced Using Said Pipe

Abstract: The invention relates to polymeric pipes reinforced by a metal framework. The strength of the metal framework and the chemical stability of a polymeric matrix enable the reinforced pipes to be used in transportation of oil and gas, acids, alkaline products, drinking and process waters and the like. The invention defined includes a connecting element for constructing a pipeline having a cylindrical shaped sleeve made of a polymeric material and having an inner annular protrusion at its end face, characterized in that a thread is made on the internal side surface of the sleeve, the width of the annular protrusion being not greater than the thickness of the side wall of a metal-polymeric pipe to be connected, but being greater than the depth of the reinforcing element locations in the wall of the said pipe.

METHOD AND APPARATUS FOR EXTRUSION OF THERMOPLASTIC HANDRAIL

A method of and apparatus for extruding an article of uniform cross-section, the article including a thermoplastic material and at least one cable for inhibiting stretch of the article. The cable is supplied to a respective tube and is conveyed between upstream and downstream ends. The thermoplastic material may be supplied to the downstream end of the tube. The thermoplastic material is brought together with the cable to embed the cable within the thermoplastic material, thereby forming a composite extrudate. The tube is configured to at least hinder movement of loose windings of the cable from the downstream end towards the upstream end, which may prevent or at least reduce incidence of "birdcaging".

EXTRUSION OF VISCOUS MATERIAL

FLEXIBLE CONTROL FOR THE TRANSPORT OF HYDROCARBONS HAS LAYER OF MAINTENANCE RENFORCEE

PERFECTIONNEMENTS AUX DISPOSITIFS D'EXTRUSION EN CONTINU ET EN MILIEU FERME D'UN PRODUIT RETICULE

LE DISPOSITIF D'EXTRUSION COMPREND, EN SUS DU MOYEN DE FILTRAGE FIN F DESTINE A FILTRER LE PRODUIT ISOLANT RETICULABLE A L'ETAT FLUIDE A LA SORTIE DE L'EXTRUDEUSE II, EN AVAL DE CELUI-CI ET EN AMONT DE LA ZONE D'INJECTION D'AGENT DE RETICULATION A, UN FILTRE FIN ADDITIONNEL F MONTE A DEMEURE ET SERVANT A FILTRER LES IMPURETES EVENTUELLES INTRODUITES DANS LA LIGNE D'EXTRUSION EN RAISON DES CHANGEMENTS DU MOYEN DE FILTRAGE PRINCIPAL F EN FONCTION DE SON ETAT DE COLMATAGE OU D'ENCRASSAGE.

Flexible, hose-shaped moulded body, such as bellows, and method for its manufacture

Der flexible, schlauchförmige Formkörper (10) weist eine unprofilierte oder profilierte gerade oder gebogene Form und mit einem Wellenprofil (12) versehene, umlaufende Wand (11) auf, die von einer in einen thermoplastischen Kunststoff eingebetteten Festigkeitsträgereinlage aus in Längsrichtung des Formkörpers verlaufenden Cord-Flächen als Druckträgerelement und aus diese in Stellung haltenden, quer zu den Fäden verlaufenden Fixierfäden gebildet wird.

MOLDABLE CAPSULE AND METHOD OF MANUFACTURE

A method to form moldable capsules of a conductively doped resin-based material are created. A resin-based material is extruded/pultruded onto a bundle of conductive material. The resin-based material and the bundle are sectioned into moldable capsules. The method further comprises heating the bundle to a temperature near the melt temperature of the resin-based material. The heating may comprise heating the bundle to a temperature above the melt temperature of the resin-based material. In further embodiments, heating comprises heating the bundle to a temperature above the glass transition temperature of the resin-based material.

ЛИНИЯ ДЛЯ ИЗГОТОВЛЕНИЯ ТЕПЛОИЗОЛИРОВАННОЙ ГИБКОЙ ТРУБЫ

Для получения гибкой и эластичной теплоизолированной трубы стабильного качества, путем предотвращения преждевременной реакции вспенивания теплоизоляционного материала, обеспечения стабильности процесса вспенивания и его управляемости линия содержит последовательно расположенные разматывающее устройство подачи рабочей трубы, правильное устройство, направляющее устройство, высокоточную заливочную установку, экструзионную головку, экструдер и ванну охлаждения, причем линия снабжена двух- или многоканальной системой кондиционирования, расположенной в полости экструзионной головки и включающей позиционирующую направляющую для направления движения и исключения провисания рабочей трубы и два и более канальных узла с каналом подачи вспенивающегося теплоизолирующего материала, установленным в змеевик с циркулирующим в нем хладагентом, линия также снабжена вра- щающимся калибрующим устройством, расположенным в ванне охлаждения и обеспечивающим формование винтовой формы внешней защитной трубы-оболочки ...

SUPPORTED HOLLOW FIBER MEMBRANE

A hollow fiber membrane is made by covering a tubular supporting structure with a membrane dope and converting the membrane dope into a solid porous membrane wall. Optionally, a textile reinforcing structure in the form of a circular knit may be added around the supporting structure before it is covered in dope. The reinforcing structure thereby becomes embedded in the membrane wall. The supporting structure may be soluble in a non-solvent of the membrane wall, for example water, and may be removed from the membrane. Alternatively, the supporting structure may be porous. A porous supporting structure may be made by a non-woven textile process, a sintering process within an extrusion machine, or by extruding a polymer mixed with a second component. The second component may be a soluble solid or liquid, a super-critical gas, or a second polymer that does not react with the first polymer.

Method and apparatus for producing corrugated tubes from plastic material

Extruded plastic profiled elements containing continuously inserted damping elements

The invention relates to a continuous method for producing a profiled element (1) containing at least one core made of a polyurethane foam or a mixture containing a polyurethane foam, at least one jacket made of at least one thermoplastic material, and optionally at least one film (11) between the core and the jacket, to a profiled element (1) produced by said method, to the use of such a profiled element to produce window frames and door frames, in interior finishing, and in devices in which temperature differences between the interior and exterior occur during operation, and to a device for carrying out the method according to the invention.

APPARATUS FOR CONTINUOUS EXTRUSION AND-REACTOR OF A CROSSLINKED PRODUCT

DIE AND METHOD FOR IMPREGNATING FIBER ROVINGS

A die (150) and method for impregnating at least one fiber roving (142) with a polymer resin are disclosed. The die includes an impregnation section. The impregnation section includes an impregnation zone (250) configured to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces (252). At least one of the plurality of contact surfaces is configured such that a normal force of the roving is less than or equal to a lift force of the resin at an impregnation location on the contact surface during impregnation of the roving with the resin by the contact surface.

HOSE LINE, IN PARTICULAR FOR DIVING EQUIPMENT

The invention relates to a hose line, in particular for diving equipment, having at least one base layer (1), and at least one open reinforcement layer (2). According to the invention, the base layer (1) is constructed of at least two sublayers (3, 3') that are seamlessly coextruded with one another, and the reinforcement layer (2) is extruded so as to be between said sublayers (3, 3').

METHOD AND APPARATUS FOR EXTRUSION OF THERMOPLASTIC HANDRAIL

A method of and apparatus for extruding an article of uniform cross-section, the article including a thermoplastic material and at least one cable for inhibiting stretch of the article. The cable is supplied to a respective tube and is conveyed between upstream and downstream ends. The thermoplastic material may be supplied to the downstream end of the tube. The thermoplastic material is brought together with the cable to embed the cable within the thermoplastic material, thereby forming a composite extrudate. The tube is configured to at least hinder movement of loose windings of the cable from the downstream end towards the upstream end, which may prevent or at least reduce incidence of “birdcaging”. 1. A method of extruding an article of uniform cross-section , the article comprising a thermoplastic material and at least one cable for inhibiting stretch of the article , the method comprising:supplying the at least one cable to a respective at least one tube, the tube having upstream and downstream ends, a length extending between the upstream and downstream ends, and an inner dimension;conveying the cable through the tube between the upstream and downstream ends;supplying the thermoplastic material to the downstream end of the tube;bringing the thermoplastic material together with the cable to embed the cable within the thermoplastic material, thereby forming a composite extrudate; andpermitting the composite extrudate to cool and solidify,wherein at least one of the length and the inner dimension of the tube is selected to at least hinder movement of loose windings of the cable from the downstream end towards the upstream end of the tube.2. The method of claim 1 , wherein claim 1 , in the step of conveying claim 1 , the cable is guided through the tube having the length that is between 200 to 300 times a diameter of the cable.3. The method of claim 2 , wherein claim 2 , in the step of conveying claim 2 , the at least one cable is guided through the tube having ...

EQUIPMENT FOR PREPARATION OF FOAMED POLYOLEFIN INSULATED WIRES FOR TELECOMMUNICATION CABLE

STABILISED FABRICS

Primarily for incorporation into fabric-reinforced products such as hoses, a mesh fabric 8 comprising filaments 10, 11 additionally comprises stabilising carrier threads 14 or other stabilising means that provide the mesh fabric with substantially no elasticity in at least one direction and over a range of conditions, and whose effect can be reduced or removed under second conditions which do not affect the mesh fabric. A fabric-reinforced product may be produced in which, after shaping, the fabric contains broken or otherwise deconstructed stabilising means, and is thus dimensionally unstable relative to the fabric when stabilised.

The rubber roll maker and rubber roller manufacturing method

Process and installation for the manufacture of laminated plastic

Method for the extrusion of thermoplastic material composites

Method for dispersing a fluid additive within only a portion of a stream of thermoplastic material comprising the steps of (a) flowing said stream of thermoplastic material into a channel having walls of substantially circular cross section, into which there has been placed a rotating mixer head having in the surface thereof a plurality of alternate lands and grooves each of said lands and grooves having an upstream end and a downstream end, said lands alternating with said grooves and being arranged in pairs, each of said pairs having a land in loose clearance with said wall followed by a land in close clearance with said wall, said mixer head having an unobstructed internal passage positioned therein over a substantial portion of its terminal length and a plurality of conduits severally connecting elongated zones between said lands pairs and said hollow internal passage, and (b) injecting said fluid additive into said channel at a position between said upstream and downstream ends of ...

APPARATUS FOR PRODUCING REINFORCED ELONGATE BODIES

PROCESS FOR EXTRUSION FORMING OF RESIN FORMED BODY HAVING DIFFERENT THICKNESS

Machine to be mixed and rove

PROCESS FOR PRODUCING A RIGID COMPOSITE STRUCTURE PROVIDED BY WELDING WITH TELESCOPING RIGID FRAMES OBTAINED FROM THIS METHOD

Procédé de production d'une structure rigide obtenue par assemblage de profilés structuraux dans laquelle les profilés structuraux sont obtenus par une technologie de pultrusion et caractérisé en ce que : - la matrice utilisée pour production par pultrusion desdits profilés est une résine thermoplastique de la famille des acryliques et/ou des acrylates et/ou des polyacryliques et/ou des polyacrylates - les angles de liaison entre les profilés sont assemblés par soudage d'au moins une extrémité des profilés avec un autre profilé de même section.

PROCEDE ET DISPOSITIF D'EXTRUSION D'UN PRODUIT RETICULE

La présente invention concerne un procédé et un dispositif d'extrusion de produit réticulé. Selon ce procédé, une première boudineuse 13 reçoit seulement un produit réticulable 11 et le transmet par l'intermédiaire d'un filtre 14 à un injecteur 15 au niveau duquel est injecté un agent de réticulation 16 tel qu'un peroxyde. Ensuite le mélange du produit réticulable et de l'agent de réticulation est transmis à une tête d'extrusion 17 pour être appliqué par exemple à un câble 18. Application à la fabrication des câbles électriques.

Extruding meshwork insulator around electric cable - using fixed filter downstream of interchangeable filter to prevent contamination

장척체의 제조 방법

... 압출 성형기(24)에 의해 아우터 벨트 몰딩(11)의 본체부를 압출 성형하는 압출 성형 공정을 실행한다. 이때, 압출 성형기의 구금(27)의 내부에 형성된 테이프 안내 통로(29)에 의하여 제1의 테이프(22)를 상기 구금내의 가열 상태의 아우터 벨트 몰딩의 제1의 씰 립(13)의 표면으로 안내하여, 제1의 테이프를 제1의 씰 립에 고착시키는 제1의 테이프 고착 공정과, 압출 성형기의 구금의 하류측 단면에 인접하여 배치된 테이프 안내 지그(30)에 의하여 제2의 테이프(23)를 상기 구금로부터 나온 직후의 가열 상태의 아우터 벨트 몰딩의 제2의 씰 립(14)의 표면으로 안내하여, 제2의 테이프를 제2의 씰 립에 고착시키는 제2의 테이프 고착 공정을 실행한다.

코드 강화 압출물을 압출하기 위한 압출기 시스템

... 본 발명은 코드 강화 압출물을 압출하기 위한 압출기 시스템 및 방법에 관한 것으로, 압출기 시스템은 압출 재료를 수용하기 위한 다이 및 코드를 공통 코드 평면 내에서 코드 방향으로 다이 내로 나란히 가이드하기 위한 코드 가이드를 구비한 압출기 헤드를 포함하고, 압출기 시스템은 제1 압출기 및 제2 압출기를 포함하고, 압출기 헤드는 제1 흐름 채널 및 제2 흐름 채널을 포함하고, 압출기 시스템은 제1 압출기 및 제2 압출기로부터 압출 재료를 수용하고 제1 흐름 채널 및 제2 흐름 채널 내로 압출 재료를 다이렉팅하기 위한 제1 펌프 및 제2 펌프를 더 포함한다.

METHOD AND APPARATUS FOR EXTRUSION OF THERMOPLASTIC HANDRAIL

A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.

Flexible lighting elements in a single body

A description is given of a single-body flexible lighting element (10) encapsulating a strip of LEDs formed by any strip of LEDs covered externally by a silicone elastomer crosslinkable without heat and preferably by means of UV radiation exposure, which can be used also as gasket.

STEEL CORD FOR EXTRUSION PROCESS, AN APPARATUS AND METHOD AND USE OF SAID STEEL CORD

EXTRUDING FOAM RESIN INSULATION ON WIRING

Extruding meshwork insulator around electric cable - using fixed filter downstream of interchangeable filter to prevent contamination

Production of laces and granules of fibre-reinforced thermoplastics

Method and apparatus for the manufacture of a cross-linked extruded or injection-moulded article

A process and apparatus for producing a cross-linked, extruded or sprayed product.

Metal-containing polymer strengthening tube, method for manufacturing said tube and using the tube production pipeline

Flexible and hose-shaped moulded body, such as bellows, and method for its manufacture

The invention relates to a flexible and hose-shaped moulded body, such as a bellows, and a method for its manufacture. The flexible and hose-shaped moulded body (10) comprises a non-profiled or just profiled or bent-shaped circumferential wall (11) with a wave profile (12). The circumferential wall (11) is formed as a strength supporting insert embedded in thermoplastic materials. The strength supporting insert comprises a silk thread surface and fixing threads. The silk thread surface extends as a pressure supporting member along the longitudinal direction of the moulded body. The fixing threads extend transversely to the silk threads and are used for fixing the silk threads.

APPARATUS AND METHOD FOR FEEDING INSERTS DURING EXTRUSION MOULDING

An extrusion moulding apparatus (10) comprising a hollow body (12); a die (18) coupled in use to the hollow body (12); and drive means (16) for driving mouldable material (20) through the hollow body (12) and the die (18). Insertion means (30) are provided for inserting objects (32) into the mouldable material (20) in the hollow body (12) or die (18). Disclosed is also a method for producing an extrudate (20) in which objects (32) are wholly or partially embedded in the mouldable material (20), spaced apart along its length.

Metal-containing polymeric reinforced pipe, method for manufacturing same and pipeline produced using said pipe

... The invention relates to polymeric pipes reinforced with a metal casing, which are used for transporting oil and gas, acids, alkali products, drinking water and industrial water, and also in the transportation of aggressive and neutral pulps, for example, in the event of the underground leaching of rock. What is claimed is: a metal-containing polymeric reinforced pipe comprising a welded metal casing and a polymeric matrix having an amorphous-phase-based molecular structure. The metal-containing polymeric reinforced pipe is produced by extrusion moulding with simultaneous feeding of a polymer melt and the reinforcing metal casing into the mould cavity, followed by intensive cooling of the internal and external surfaces of the pipe being moulded. The technical result of the invention is an increase in the quality and endurance limit in the radial direction of the metal-containing polymeric reinforced pipe, with an increase in productivity of the process for manufacturing said pipe, and ...

가스켓 압출성형 장치 및 가스켓 압출성형 방법

... 본 발명에 따른 가스켓 압출성형 장치는 고분자 수지 원료를 가열 용융시켜 압출하는 가스켓 압출 유닛; 마그네트 수지 원료를 가열 용융시켜 압출하는 마그네트 압출 유닛; 상기 마그네트 압출 유닛으로부터 압출되는 용융된 마그네트 수지를 압출 성형하는 마그네트 금형 유닛; 상기 마그네트 금형 유닛에 의해 압출 성형된 마그네트의 이동속도를 제어하는 제1 속도제어 유닛; 상기 마그네트를 인서트 몰딩하도록 상기 가스켓 압출 유닛으로부터 압출되는 용융된 고분자 수지를 압출 성형하는 인서트 금형 유닛; 상기 마그네트를 인서트 몰딩하는 압출 성형된 고분자 가스켓 부재의 이동속도를 제어하는 제2 속도제어 유닛; 및 상기 고분자 가스켓 부재 및 상기 마그네트를 포함하는 가스켓을 절단하기 위한 절단부를 포함할 수 있다.

EXTRUSION APPARATUS AND EXTRUSION METHOD

The purpose of the present invention is to provide a technique for curtailing the time needed to pre-heat an internal space of a cylinder. In order to achieve this purpose, an extrusion apparatus is provided with a cylindrical cylinder, a screw rotatably arranged in an internal space of the cylinder, and an external heater for heating the internal space from the outer periphery. The extrusion apparatus is further provided with a heater device detachably incorporated into the screw. The heater device is provided with, for example, a heater rod that can be connected to and disconnected from a shaft part in a hollow of the screw.

СПОСОБ ИЗГОТОВЛЕНИЯ ТЕПЛОИЗОЛИРОВАННОЙ ГИБКОЙ ТРУБЫ

Для получения гибкой и эластичной теплоизолированной трубы стабильного качества, путем предотвращения преждевременной реакции вспенивания теплоизоляционного материала, обеспечения стабильности процесса вспенивания и его управляемости внешнюю защитную трубу-оболочку экструдируют соосно рабочей трубе посредством экструзионной головки с угловым течением полимерных материалов и формуют в виде винтовой поверхности, а во внутреннюю полость между внешней защитной трубой-оболочкой и рабочей трубой подают вспенивающийся материал, образующий слой теплоизоляции между внешней защитной трубой -оболочкой и рабочей трубой, при этом температуру вспенивающегося теплоизолирующего материала поддерживают посредством системы кондиционирования, охлаждающей каналы устройства подачи и смешения вспенивающихся теплоизолирующих материалов и одновременно являющейся для них элементом их позиционирования.

Producing fabric reinforced hose

A method to produce a fabric reinforced hose product in which the reinforcing fabric therein has a stabilizing yarn therein extending in the longitudinal direction of the hose which is broken when the produced hose member has been flexed in the longitudinal direction.

SYSTEM AND METHOD FOR HIGH SPEED FEEDING OF DRIPPER TO IRRIGATION PIPE IN PRODUCTION

METAL-CONTAINING POLYMERIC REINFORCED PIPE, METHOD FOR MANUFACTURING SAME AND PIPELINE PRODUCED USING SAID PIPE

The invention relates to polymeric pipes reinforced with a metal casing, which are used for transporting oil and gas, acids, alkali products, drinking water and industrial water, and also in the transportation of aggressive and neutral pulps, for example, in the event of the underground leaching of rock. What is claimed is: a metal-containing polymeric reinforced pipe comprising a welded metal casing and a polymeric matrix having an amorphous-phase-based molecular structure. The metal-containing polymeric reinforced pipe is produced by extrusion molding with simultaneous feeding of a polymer melt and the reinforcing metal casing into the mold cavity, followed by intensive cooling of the internal and external surfaces of the pipe being molded. The technical result of the invention is an increase in the quality and endurance limit in the radial direction of the metal-containing polymeric reinforced pipe, with an increase in productivity of the process for manufacturing said pipe, and also ...

Stabilised fabrics

Stabilised fabrics

WEATHERING INSULATING WIRE FABRICATION

PURPOSE: To obtain the standard wire which is uniform in characteristics with no micture of foreign matters in coating by pressing and coating the molten mixture where a specified amount of carbon black is mixed in the molten crosslinking agent, in the molten polyethylene of an extruder. COPYRIGHT: (C)1978,JPO&Japio ...

긴 부재의 제조 방법

... 저벽(11)과, 제1 측벽(12) 및 제2 측벽(13)을 가지며, 저벽(11)과 제1 측벽(12)이 이루는 각도는 일정하고, 저벽(11)과 제2 측벽(13)이 이루는 각도는 길이 방향에서 부분적으로 다른 웨더 스트립을 제조한다. 제1 측벽(12) 및 제2 측벽(13)의 각도를 최종적인 최대 각도 이상의 일정 각도로 예비 형성하는 제1 공정과, 저벽(11)과 제2 측벽(13)의 경계 부분이, 제1 측벽(12)의 방향으로 이동하는 것을 규제 부재(22)에 의해 규제하는 제2 공정과, 제2 측벽(13)의 각도를 가동 롤러(25)에 의해 부분적으로 다르게 하는 제3 공정과, 제1 측벽(12)의 각도를 미동 롤러(24)에 의해 형성하는 제4 공정을 가진다.

TUBE MATERIAL AND STRIP MATERIAL OF WALL TUBE WITH REINFORCED THERMOPLASTIC COMPOSITE STRUCTURE, AND COMPLETE PRODUCTION EQUIPMENT THEREOF

A strip material of a wall tube with a reinforced thermoplastic composite structure comprises an upper substrate (111), a lower substrate (112), and at least one reinforcing rib (114) vertically integrated with the upper substrate (111) and the lower substrate (112), a reinforced section bar (113) at least being located in the reinforcing rib (114). The composite elasticity modulus in the strip material of the wall tube with the reinforced thermoplastic composite structure is greater than that of a reinforced section bar at a thermoplastic material layer, thereby significantly improving the ring stiffness of the tube material and significantly reducing the consumption of raw materials. Also disclosed is a tube material of a wall tube with a reinforced thermoplastic composite structure manufactured by using the strip material of the wall tube with the reinforced thermoplastic composite structure. The tube material has a smooth inner wall and outer wall, and multiple hollow structures are ...

METHOD AND DEVICE FOR MANUFACTURING RESIN COATED ELECTRIC WIRE WITH COLOR IDENTIFICATION LAYER

PURPOSE: To reduce material loss, time loss and economical loss to a substantial extent by providing a process of coating resin for insulation extruded out of an extruder onto a conductive material and forming an insulated layer, a process of mixing a liquid coloring agent of desired color into color identification basic resin after being extruded and preparing the identification color resin and a process of coating the same onto the insulated layer and forming the color identification layer. CONSTITUTION: A mixer 7 is inserted in the middle of an extrusion line 61 connecting an extruder 6 extruding base resin for color identification and a resin coating head 4, and a liquid coloring agent 8 of desired color is fed from a storage tank into the upper section of a mixer 7 of the extrusion line 61 by a press feeding pump 9. The mixer 7 works for mixing the liquid coloring agent 8 and base resin for a color identification layer by, for instance, rotating a worm or an impeller, and the basic ...

ETHYLENE POLYMER PELLET AND EXTRUSION MOLDING METHOD USING THE SAME

PROBLEM TO BE SOLVED: To provide ethylene polymer pellets that can be stably extrusion-molded by a single screw extruder while adding liquid directly to pellets without adding liquid to molten resin using a feeder, a pump, or the like, and an extrusion molding method by the single screw extruder using the pellets and adding a liquid additive. SOLUTION: The ethylene polymer pellet has a kneading torque at 160°C of 2-15 Nm and a specific surface area of 1,800-3,000 mm2/g. COPYRIGHT: (C)2012,JPO&INPIT ...

긴 부재의 제조 방법

... 저벽(11)과, 제1 측벽(12) 및 제2 측벽(13)을 가지며, 저벽(11)과 제1 측벽(12)이 이루는 각도는 일정하고, 저벽(11)과 제2 측벽(13)이 이루는 각도는 길이 방향에서 부분적으로 다른 웨더 스트립을 제조한다. 제1 측벽(12) 및 제2 측벽(13)의 각도를 최종적인 최대 각도 이상의 일정 각도로 예비 형성하는 제1 공정과, 저벽(11)과 제2 측벽(13)의 경계 부분이, 제1 측벽(12)의 방향으로 이동하는 것을 규제 부재(22)에 의해 규제하는 제2 공정과, 제2 측벽(13)의 각도를 가동 롤러(25)에 의해 부분적으로 다르게 하는 제3 공정과, 제1 측벽(12)의 각도를 미동 롤러(24)에 의해 형성하는 제4 공정을 가진다.

Method for producing long object

PROTECTIVE FILM FOR POLARIZING PLATE, METHOD FOR PRODUCTION OF FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY ELEMENT

Disclosed is a method for production of a film, which comprises the steps of: extruding a molted material containing a cellulose resin on a cooling roll from a die in a film-like form at a draw ratio ranging from 10 to 30 inclusive; pressing the extruded molted film on the cooling roll with a touch roll; and transferring the molted film while solidifying the film on the cooling roll, wherein the touch roll has a metal-made outer cylinder, an inner cylinder, and a space for accommodating a cooling medium between the metal-made outer cylinder and the inner cylinder and also has a touch roll linear pressure ranging from 1 to 15 kg/cm inclusive during pressing with the touch roll. A protective film for a polarizing plate, a polarizing plate and a liquid crystal display element can be provided which are free from the concern of formation of light-dark lines or spot-shaped unevenness caused by die lines formed upon displaying an image using a liquid crystal display element and are formed using ...

섬유 강화 열 가소성 수지 테이프의 제조 장치 및 제조 방법

... 결함 부분이 적은 섬유 강화 열 가소성 수지 테이프의 제조가 가능한 방법 및 장치를 제공한다. 제공되는 장치는, 용기(3a)를 포함하고, 그 출구부를 통하여 열 가소성 수지를 함침한 상기 섬유 다발(8)이 배출되는 것을 허용하는 수지 함침 장치(3)와, 상기 출구부에 설치되고 상기 섬유 다발을 테이프 형상으로 하면서 그 통과를 허용하는 개구를 갖는 노즐(18)과, 노즐(18)을 통과한 섬유 다발(8)에 접촉 위치에서 접촉하면서 그 이송 및 냉각을 하는 메인 냉각 롤러(20)를 구비한다. 상기 개구는 직사각형의 슬릿이며, 그 짧은 변의 치수를 T(㎜), 노즐(18)의 선단과 상기 접촉 위치의 거리를 L(㎜)로 했을 때, 당해 치수 T 및 당해 거리 L이, 다음의 (A) 식 및 (B) 식 중 어느 한쪽을 만족한다.

STEEL CORD FOR EXTRUSION PROCESS, AN APPARATUS AND METHOD AND USE OF SAID STEEL CORD

A steel cord (2) for an extrusion process, where a steel wire (6) is connected to the leading end of the steel cord (2). The steel wire (6) is easy to insert through an extruder head (12) and leads the steel cord (2) through the extruder head (12), to facilitate the change-over of steel cord (12) on an extruder (10) to reduce the change-over time. Also an apparatus (10), a change-over process, and the use of the steel cord (2) for an extrusion process is disclosed.

SYSTEM AND METHOD FOR HIGH SPEED FEEDING OF DRIPPER TO IRRIGATION PIPE IN PRODUCTION

Device and method are disclosed for feeding drippers into a produced dripping line in speeds as high as 1800-2000 drippers a minute. The drippers are fed into the production line by a cylindrical feeder equipped with a helix worm made on its cylindrical face, which is adapted to engage the helix into a respective recession or protrusion made on a dripper, and to linearly forward it toward a dripping pipe production section while providing accurate control on the speed of movement of the dripper and the spacing between each two consecutive drippers in the produced pipe. The use of a helical worm to engage the drippers provides smooth and gradual mechanical engagement of the feeding device with each dripper, thus ensuring silent and non- vibrating assembly even when in very high production speeds.

PLASTIC MOULDING METHOD

A method of plastic moulding to form a moulded or extruded article, the method employing a moulding apparatus comprising a barrel containing a screw extending between a feed zone supplied by a feed hopper for plastics material, a compression zone and a metering zone for delivery of molten plastics material to a mould or extrusion die, the method comprising introducing into the feed zone a first plastics material (20) and a single body of a second plastics material (22), the first plastics material (20) having a different physical property to the second plastics material and the second plastics material (22) being introduced into the feed zone in a size and a frequency of delivery relative to the flow of the material through the barrel such that the second plastics material (22) is substantially melted and blended with the first plastics material to form a third plastics material with a different physical property to the first or second plastics material across the whole cross sectional ...

Rubber coating method for metallic element wire, cord manufacturing method, cord, rubber coating apparatus, and cord manufacturing apparatus

열가소성 핸드레일의 압출 방법 및 장치

... 균일한 단면의 물품을 압출하는 방법 및 장치가 제공되며, 물품은 열가소성 재료 및 물품의 신장을 억제하기 위한 적어도 하나의 케이블을 포함한다. 케이블은 각각의 튜브에 공급되고 상류 단부와 하류 단부 사이에서 반송된다. 열가소성 재료는 튜브의 하류 단부에 공급될 수 있다. 열가소성 재료는 열가소성 재료 내에 케이블을 매립하기 위해 케이블과 함께 모아져서 이에 의해 복합 압출물을 형성한다. 튜브는 케이블의 느슨한 권선이 하류 단부로부터 상류 단부를 향해 이동하는 것을 적어도 방해하여, "버드케이징"의 발생을 방지하거나 적어도 감소시킬 수 있다.

성형 가능한 캡슐 및 제조방법

... 본원에는 전도성으로 도핑된 수지계 물질의 성형 가능한 캡슐을 형성하는 방법이 기재되어 있다. 수지계 물질은 전도성 물질의 다발로 압출/인발시킨다. 수지계 물질 및 다발을 성형 가능한 캡슐로 분할한다.

EXTRUSION MOLDING OF SILICONE-GRAFTED POLYOLEFIN MOLD

PURPOSE: To produce silicone grafted polyolefin mold of uniform extent of cross- linkage in such a way that outer diameter and withdrawing speed of the extruded mold are measured in order to control the withdrawing speed and grafting agent feed rate according to the measured data. CONSTITUTION: Base polyolefin and silicone grafting agent in solution are fed in a definite ratio to an extruder 4, heated and kneaded, to obtain silicone-grafted polyolefin mold with a longitudinally uniform shape, such as insulating cable. In this case, the outer diameter of the mold is measured by an outer-diameter measuring instrument 15, and withdrawing speed thereof is also measured by a tachometer 8 or the like. Extruding amount of silicone-grafted polyolefin and feeding amount of silicone grafting agent are calculated based on the measured values, and these calculated values are respectively compared with preset values by means of computer CPU or the like. By controlling withdrawing speed and grafting ...

PROTECTIVE FILM FOR POLARIZING PLATE, METHOD FOR PRODUCTION OF FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY ELEMENT

Disclosed is a method for production of a film, which comprises the steps of: extruding a molted material containing a cellulose resin on a cooling roll from a die in a film-like form at a draw ratio ranging from 10 to 30 inclusive; pressing the extruded molted film on the cooling roll with a touch roll; and transferring the molted film while solidifying the film on the cooling roll, wherein the touch roll has a metal-made outer cylinder, an inner cylinder, and a space for accommodating a cooling medium between the metal-made outer cylinder and the inner cylinder and also has a touch roll linear pressure ranging from 1 to 15 kg/cm inclusive during pressing with the touch roll. A protective film for a polarizing plate, a polarizing plate and a liquid crystal display element can be provided which are free from the concern of formation of light-dark lines or spot-shaped unevenness caused by die lines formed upon displaying an image using a liquid crystal display element and are formed using ...

SUPPORTED HOLLOW FIBER MEMBRANE

МЕТАЛЛОПОЛИМЕРНАЯ АРМИРОВАННАЯ ТРУБА, СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ И ТРУБОПРОВОД, ПОЛУЧЕННЫЙ С ЕЕ ИСПОЛЬЗОВАНИЕМ

... Изобретение относится к полимерным трубам, армированным металлическим каркасом, которые используют для транспортировки нефти и газа, кислот, щелочных продуктов, питьевой и технической воды, а также при транспортировке агрессивных и нейтральных пульп, например, при подземном выщелачивании породы. Заявлена металлополимерная армированная труба, содержащая сварной металлический каркас и полимерную матрицу, имеющую молекулярную структуру на основе аморфной фазы. Металлополимерная армированная труба получена путем экструзионного формования при одновременной подаче в формующую полость расплава полимера и армирующего металлического каркаса с последующим интенсивным охлаждением внутренней и внешней поверхности формуемой трубы. Техническим результатом изобретения является повышение качества и длительной прочности в радиальном направлении металлополимерной армированной трубы, при повышении производительности процесса ее изготовления, а также повышение прочности и технологичности трубопровода, построенного ...

Method and extrusion nozzle for producing reinforced hollow plastic profiles

Die Erfindung bezieht sich auf ein Verfahren zum Herstellen von versteiften Kunststoff-Hohlprofilen in einem Co-Extrusionsverfahren sowie auf eine Extrusionswerkzeugdüse (14), wobei schmelzflüssiges thermoplastisches erstes Kunststoffmaterial, wie PVC, einer Extrusionswerkzeugdüse (14) zugeführt und eine aus einem zweiten Kunststoffmaterial, wie Polybuthylenterephthalat (PBT), Polyethylenterephthalat (PET) oder Mischungen dieser bestehender eigensteife Armierung (16) in der Extrusionswerkzeugdüse (14) dem ersten Kunststoffmaterial zugeführt wird, wobei die Armierung (16) vor Eintritt in die Extrusionswerkzeugdüse (14) derart temperiert wird, dass die Armierung (16) beim Zuführen zu dem schmelzflüssigen thermoplastischen ersten Kunststoffmaterial eine Temperatur aufweist, die der Temperatur des ersten Kunststoffmaterials entspricht oder in diesem Bereich liegt.

Method for producing corrugated tubes from plastic material

MANUFACTURE OF COMMUNICATION CABLE

PURPOSE: To shorten a manufacturing time by using a hollow or foamed ball with a plastic film on its surface. COPYRIGHT: (C)1979,JPO&Japio ...

LOCKING BEAM ASSEMBLY

A locking beam assembly (100) comprising a pair of opposing locking beams (10a, 10b) and a flexible support panel (17) disposed between the locking beams (10a, 10b), wherein the locking beams (10a, 10b) comprise a load support surface (11) and a flexible support panel engaging surface (37), said flexible support panel engaging surface (37) further comprising retaining means (12a, 12b) which form a channel (14) that run longitudinally through the flexible support panel engaging surface (37) of the locking beam (10a, 10b).

SUPPORTED HOLLOW FIBER MEMBRANE

FABRIC AND DIE DESIGN FOR DIVIDED CONDUIT

A method of forming a conduit having at least one strip-shaped fabric substrate dividing the conduit into channels. The method contains obtaining an extrusion die configured to form the wall of the conduit and a slot configured for receipt of a strip-shaped fabric substrate and introducing a strip-shaped fabric substrate into the slot. The strip-shaped textile is air permeable and contains enlarged regions at the first and second longitudinal edges. Molten polymer is introduced at a first point in the extrusion die and at the first point the slot and the area configured to form the wall of the conduit are not in communication. The slot is exposed to the molten polymer at a point between the first point and the die exit forming the first polymeric layer of the conduit such that the first longitudinal and second longitudinal edges of the strip-shaped fabric substrate embed into the molten polymer. 1. A method of forming a conduit having at least one strip-shaped fabric substrate dividing the conduit into channels , the method comprising:obtaining an extrusion die having an exit and defining a flow direction for polymeric material forming the conduit, wherein the die comprises an area configured to form the wall of the conduit and a slot having a thickness, a width, a first edge, and a second edge, wherein the slot configured for receipt of a strip-shaped fabric substrate, wherein the slot extends in the flow direction along the extrusion die, wherein the thickness of the slot varies along the width of the slot, wherein the thickness of the slot is greatest at the first edge and second edge of the slot;introducing a strip-shaped fabric substrate into the slot, wherein the strip-shaped fabric substrate comprises a first longitudinal edge and a second longitudinal edge, wherein the strip-shaped textile is selected from the group consisting of a woven, non-woven, and knit, wherein the strip-shaped textile is air permeable, and wherein the strip-shaped fabric substrate ...

Extruder system for extruding cord reinforced extrudate

The invention relates to an extruder system and a method for extruding cord reinforced extrudate, wherein the extruder system comprises an extruder head with a die for receiving extrusion material and a cord guide for guiding cords in a common cord plane in a cord direction into the die, wherein the extruder system comprises a first extruder and a second extruder, wherein the extruder head comprises a first flow channel and a second flow channel, wherein the extruder system further comprises a first pump and a second pump for receiving the extrusion material from the first extruder and the second extruder and for directing said extrusion material into the first flow channel and the second flow channel.

METHOD AND DEVICE FOR PRODUCING RUBBER-COATED METAL WIRE

A method and device for producing metal wire by sheathing a wire with an elastomer compound coming from an extruder is described herein. The aspects disclosed herein may include a feed canal for feeding a sheathing die, through which the wire is made to pass at a pre-established nominal speed. Various temperatures are controlled during the method based on a variety of parameters such as the measured speed at which the wire is moving is other than the nominal speed. 1. A Method for producing metal wire by sheathing a wire with an elastomer compound from an extruder. comprising:feeding a sheathing die, via a feed canal through which the wire is made to pass at a pre-established nominal speed Vn;controlling a temperature of a downstream end of the sheathing die so that the temperature is varied for a predetermined duration and independent of other parts of the sheathing die when a measured speed (Vm) at which the wire is moving is other than Vn.2. The method according to claim 1 , wherein a reference temperature Tn is applied to the downstream end of the sheathing die when the measured speed at which the wire is travelling is equal to a pre-established nominal speed Vn claim 1 , and in that at least one reference temperature Ttrans>Tn is applied for a duration shorter than the duration for which the measured speed is different from the nominal speed and the wire is accelerated.3. The method according to claim 1 , wherein a reference temperature Tn is applied to the downstream end of the sheathing die when the measured speed at which the wire is travelling is equal to a pre-established nominal speed Vn and in that at least one reference temperature Ttrans>Tn is applied for a duration equal to the duration for which the measured speed is different from the nominal speed and the wire is slowed.4. The method according to claim 3 , wherein the temperature reference Ttrans applied is greater than Tn and follows a variation law proportional to the measured speed at which the ...

ASSEMBLY FOR CREATING AN EXTRUDED PIPE FOR USE IN A GEOTHERMAL HEAT RECOVERY OPERATION

An assembly and process for forming a two stage extruded pipe having a central inner sleeve and a pair of outer attached lobes. The central sleeve shaped (also termed a grout receiving tube) is produced in an initial extrusion operation, following which it enters a cross head operation where a pair of outer lobes are attached to cross sectional exterior surface locations according to a second stage extrusion operation so as to be integrally formed therewith. Other steps include cooling of the dual stage extruded pipe, as well as sectioning and stacking the pipe. Additional steps include forming elongated slots or apertures into the central sleeve portion of the finished extrusion, such in non-interfering fashion with the individual passageway defining and lobes. 1. An assembly for producing a two stage extruded pipe , comprising:a first extruder receiving a first extrudate material for forming a sleeve shaped component;a second extruder including a cross head die through which is fed the sleeve shape component, said second extruder also including a pair of elongated mandrels extending from an outlet of said cross head die and between which communicates the sleeve shaped component, a second extrudate material flowing across each mandrel and conjoining the sleeve shaped component at circumferentially spaced apart locations in order to form a pair of individual passageway defining lobes upon the sleeve;said second extruder further having independent temperature controls for each of said elongated mandrels and for assisting in shaping the attachment interface between the lobes and central sleeve;a cooling station in communication with extending ends of said elongated mandrels for receiving and supporting the two stage extruded pipe during cooling and hardening; anda puller communicating with an outlet of said cooling station for drawing the two stage extruded pipe and prior to cutting the co-extruded pipe to specified running lengths.211. The assembly as described in ...

CALENDERING FACILITY FOR REINFORCEMENT PLIES FOR TIRES

Calendering installation for the production of a reinforcing ply () for a tire, which has a frame (), two extruders () for feeding elastomer material, a reinforcing-thread feeding device (), a calender () having a first pair of counter-rotating rollers, with a first working roller () and a first shaping roller (), and a second pair of counter-rotating rollers, with a second working roller () and a second shaping roller (), wherein a calendering nip () is formed between the working rolls () in order to receive a first calendered rubber ply () delivered by the first pair of rollers (), a second calendered rubber ply () delivered by the second pair of rollers (), and the reinforcing threads () in order to supply the calendered reinforcing ply (), which is conveyed to the outlet of the installation via guide rollers (). 114-. (canceled)15. A calendering installation for producing a reinforcing ply for a tire , the installation comprising:a frame;an outlet;two extruders supported by the frame, each extruder being structured for feeding an elastomer material;a calender;guide rollers;first and second flat dies; anda reinforcing-thread feeder structured to convey reinforcing threads into the calender, a first pair of counter-rotating rollers formed of a first working roller and a first shaping roller,', 'a second pair of counter-rotating rollers formed of a second working roller and a second shaping roller,, 'wherein the calender includeswherein the first flat die is positioned between the first extruder and the first pair of counter-rotating rollers, and the first flat die projects into a first rubber-ply calendering nip located between the first pair of counter-rotating rollers,wherein the second flat die is positioned between the second extruder and the second pair of counter-rotating rollers, and the second flat die projects into a second rubber-ply calendering nip located between the second pair of counter-rotating rollers, a first calendered rubber ply delivered by ...

Pipe with an outer wrap

This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with a reinforcing stiffener. The corrugated pipe may include an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. In some embodiments, a stiffener may be positioned within the corrugation valleys. In other embodiments, a stiffener may be positioned within the corrugation crests.

Pipe with an outer wrap

This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with a reinforcing stiffener. The corrugated pipe may include an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. In some embodiments, a stiffener may be positioned within the corrugation valleys. In other embodiments, a stiffener may be positioned within the corrugation crests.

Apparatus for extrusion of thermoplastic handrail

A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.

Flexible tubular molded body, such as bellows, and method for the manufacture thereof

The flexible tubular molded body ( 10 ) comprises an unprofiled or profiled straight or bent shaped and a circumferential wall ( 11 ) provided with a corrugated profile ( 12 ), which is formed from a strength support insert embedded in a thermoplastic material comprising cord surfaces running in the longitudinal direction of the molded body as pressure support elements and fixing threads running transversely to the threads and holding these in position.

가스켓 압출성형 장치 및 가스켓 압출성형 방법

본 발명에 따른 가스켓 압출성형 장치는 고분자 수지 원료를 가열 용융시켜 압출하는 가스켓 압출 유닛; 마그네트 수지 원료를 가열 용융시켜 압출하는 마그네트 압출 유닛; 상기 마그네트 압출 유닛으로부터 압출되는 용융된 마그네트 수지를 압출 성형하는 마그네트 금형 유닛; 상기 마그네트 금형 유닛에 의해 압출 성형된 마그네트의 이동속도를 제어하는 제1 속도제어 유닛; 상기 마그네트를 인서트 몰딩하도록 상기 가스켓 압출 유닛으로부터 압출되는 용융된 고분자 수지를 압출 성형하는 인서트 금형 유닛; 상기 마그네트를 인서트 몰딩하는 압출 성형된 고분자 가스켓 부재의 이동속도를 제어하는 제2 속도제어 유닛; 및 상기 고분자 가스켓 부재 및 상기 마그네트를 포함하는 가스켓을 절단하기 위한 절단부를 포함할 수 있다.

Method and apparatus for extrusion of thermoplastic handrail

A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.

Tire rubber extruder automatic loading and management system

A tire rubber extruder automatic loading and management system is provided for continuous and automatic control of a rubber extrusion line. Batches of rubber slab material, whether for sidewall or tread, are connected in an automated manner to provide a continuous material stream for feeding a tread extruder supply conveyor within a tire manufacturing system. Joiner between adjacent slabs are implemented utilizing a stitched joint of material. Stitch pins are driven through both rubber slab layers to a specific depth into a clearance hole to create an optimized rubber mechanical adhesion zone. The result is a funnel shaped adhesion channel penetrating entirely through the layers of material perpendicular to the direction slab movement and tension. The resulting “rivet” like button structures are extremely strong, have no Impurities that could otherwise be added via adhesives, and can be formed in an automated manner within the available process cycle times.

Method and system for manufacturing an irrigation pipe

A piece insertion method for a pipe, for example an irrigation pipe, including: ejecting at least one piece, for example a dripper, from an ejection unit, advancing the at least one dripper inside the irrigation pipe by a dripper advancing unit, lifting the dripper towards the inner surface of the irrigation pipe by using a lifting device such that the dripper is parallel or substantially parallel to this inner surface of the irrigation pipe on impact with this inner surface. The method according to the invention allows also coordination between the lifting device, the ejection unit and the dripper advancing unit such that the dripper spacing can be maintained in tight tolerances.

Metal-containing polymeric reinforced pipe, method for manufacturing same and pipeline produced using said pipe

The polymeric pipes reinforced with a metal casing are used for transporting oil and gas, acids, alkali products, drinking water and industrial water, and also in the transportation of aggressive and neutral pulps. A metal-containing polymeric reinforced pipe includes a welded metal casing and a polymeric matrix having an amorphous-phase-based molecular structure. The metal-containing polymeric reinforced pipe is produced by extrusion moulding with simultaneous feeding of a polymer melt and the reinforcing metal casing into the mould cavity, followed by intensive cooling of the internal and external surfaces of the pipe being moulded. The invention increases the quality and endurance limit in the radial direction of the metal-containing polymeric reinforced pipe, productivity of the process for manufacturing the pipe, and also the strength and technological effectiveness of a pipeline constructed from the pipes produced.

Apparatus for producing laminated fabric ply strips

A cross-head die assembly for use with an extruder is described. The cross-head die assembly includes: an inlet section having an inlet for communicating flow from the extruder to one or more flow channels formed in a support block; and an outlet, a removably mounted die located at the outlet and in fluid communication with the one or more flow channels; said support block further comprising an interior slot extending from a first side of the support block to an outlet passageway; a removable cassette positioned in the interior slot, wherein the front end of the removable cassette is positioned to seal the outlet passageway of the slot so that the slot is isolated from the flow.

Assembly and process for creating an extruded pipe for use in a geothermal heat recovery operation

An assembly and process for forming a two stage extruded pipe having a central inner sleeve and a pair of outer attached lobes. The central sleeve shaped (also termed a grout receiving tube) is produced in an initial extrusion operation, following which it enters a cross head operation where a pair of outer lobes are attached to cross sectional exterior surface locations according to a second stage extrusion operation so as to be integrally formed therewith. Other steps include cooling of the dual stage extruded pipe, as well as sectioning and stacking the pipe. Additional steps include forming elongated slots or apertures into the central sleeve portion of the finished extrusion, such in non-interfering fashion with the individual passageway defining and lobes.

Ethylene polymer pellet and extrusion process using the same

Provided is a pellet of an ethylene polymer having a kneading torque at 160° C. of 2 to 15 Nm, wherein the pellet has a specific surface area of 1,800 to 3,000 mm 2 /g.

Method for roll-bending a profile, profile, method for manufacturing bent profile workpieces, bent profile workpiece, device for roll-bending a profile, and extrusion and roll-bending line

The invention relates to a method for roll-bending a profile which comprises at least one cross-sectional region which is formed from a plastics material which is shaped by extrusion. A first and a second bending roller set are provided, each including bending rollers which are arranged in such a way that a passage, which enables guiding of the profile, is formed between the bending rollers of each of the bending roller sets. The profile is bent about a first bending axis and about a second bending axis which is non-parallel thereto, the translations and rotations of the second bending roller set being brought about simultaneously at least at times and/or mutually offset in time in a predetermined sequence.

Resin-metal complex and manufacturing method thereof

Provided herein is a resin-metal complex and a manufacturing method thereof, the resin-metal complex being a synthetic resin comprising an olefin resin, filler, and coupling agent combined with a metallic material, the filler being at least one of an organic filler and inorganic filler, the inorganic filler being wood flour, wood pellet, wood fiber, or paper powder, and the inorganic filler being talc, calcium carbonate, wollastonite, or kaolinite.

Extruded plastics profiles comprising continuously introduced insulation elements

The present invention relates to a continuous process for producing a profile comprising at least one core made of a polyurethane foam or a mixture comprising a polyurethane foam, at least one jacket made of at least one thermoplastic material, and optionally at least one foil between core and jacket, to a profile produced via said process, to the use of this profile for producing windowframes, doorframes, or in the fitting-out of interiors, or in apparatuses in which, during operation, temperature differences arise between interior space and exterior space, and also to an apparatus for carrying out the process of the invention.

System and method for impregnating fiber rovings

A die and method for impregnating at least one fiber roving with a polymer resin are disclosed. The die includes an impregnation section. The impregnation section includes an impregnation zone configured to impregnate the roving with the resin. The impregnation zone includes a plurality of contact surfaces. At least one of the plurality of contact surfaces is configured such that a normal force of the roving is less than or equal to a lift force of the resin at an impregnation location on the contact surface during impregnation of the roving with the resin by the contact surface.