BINDER COMPOSITION FOR METAL POWDER INJECTION MOLDING

The present invention relates to a binder composition for metal powder injection molding, and more specifically, to a binder composition for metal powder injection molding, which can be promptly debound, facilitates the setting of flow conditions in an injection process, and enables the minimization of poor debinding such as swelling, carbonization of low-molecular-weight binders, and other internal defects, during a debinding process. The binder composition for metal powder injection molding of the present invention contains 10 to 50 wt % of a high-viscosity polyoxymethylene polymer and 50 to 90 wt % of a low-viscosity polyoxymethylene polymer. By containing polyoxymethylenes alone, which has been produced with different viscosities, without feeding of other monomers in the polymerization process of polyoxymethylene, the binder composition for metal powder injection molding according to the present invention is more economical through low manufacturing costs compared with a conventional ...

Feedstock for an additive manufacturing method, additive manufacturing method using the same, and article obtained therefrom

A feedstock for a 3D manufacturing process, in particular a Fused Filament Fabrication process. The feedstock includes (P) sinterable particles made of a metal, metal alloy, glass, ceramic material, or a mixture thereof; and (B) a binder composition including (b1) 5-15% by weight, relative to the total weight of the binder composition, of a polymeric compatibilizer, and (b2) 85-95% by weight, relative to the total weight of the binder composition, of a polymeric binder component, the polymeric binder component being selected from the group consisting of (b2-1) a polymer mixture or polymer alloy, the mixture or alloy including at least a first and a second polymer; (b2-2) one, two or more block copolymers, including at least a first polymer block and second polymer block; and (b2-3) mixtures of (b2-1) and (b2-2), wherein the amount of sinterable particles P is 40 Vol % or more of the composition.

METHOD FOR MANUFACTURING A THERMOPLASTIC MOULDING POWDER

MATERIAL AND PROCESS FOR MANUFACTURING OF METAL PARTS WITH LOW DENSITY AND GOOD MECHANICAL PROPERTIES

Method for manufacturing high-torque hexagonal drill shank

A method for manufacturing a high-torque hexagonal drill shank includes: firstly producing an air module, wherein the lower end of the air module is inserted into a molding cavity of a mold, a high-pressure air is injected into the air module, and the surface of the air module is provided with a plurality of air outlets; evenly mixing metal powder and an organic binder together; injecting obtained particulates in a heating-plasticizing state into the molding cavity by an injection molding machine to solidify and form a hexagonal drill shank blank; forming a non-cylindrical cavity inside the hexagonal drill shank blank under the action of the air module; removing the binder in the hexagonal drill shank blank by thermal decomposition; and, finally, obtaining a high-torque hexagonal drill shank by sintering and densifying.

METAL POWDER COMPOSITION COMPRISING A BINDER

The invention relates to a powder metallurgical composition for making compacted parts, comprising an iron or iron-based powder and a binder comprising a drying oil, wherein the drying oil comprises an ester of conjugated fatty acid and a polyol.

LIQUID FABRICATION AND METHOD OF MANUFACTURING FABRICATION OBJECT

A liquid fabrication contains an oligomer with a ring structure having a number average molecular weight of 3,000 or less and an organic solvent, wherein the liquid fabrication is substantially free of water and is applied to a layer of powder containing metal particles.

POWDER PARTICLES AND PROCESS FOR PRODUCING GREEN BODY USING SAME

Silver powder, method for producing the same, and conductive paste

A silver powder containing: silver particles; and an adherent that is attached to surfaces of the silver particles and contains a metal oxide that has a melting point lower than a melting point of silver.

COMPOSITIONS, COMPRISING SILVER NANOPLATELETS

THREE-DIMENSIONAL PRINTED STRUCTURE WITH DOUBLE WALL ELEMENTS

In order to improve three-dimensional (3D) printing a high-aspect-ratio three-dimensional metal structures, there is provided a printing method that builds a wall comprising a center part made out of a metal-containing material and left and right parts made out of a plastic material forming first and second supporting wall elements. The plastic support material may be used to enable the build-up of a high-aspect-ratio 3D structure. The proposed printing strategy may be applicable to a cost-effective 3D printing technology, such as fused deposition molding (FDM).

METHOD FOR INTERCONNECTION OF COMPONENTS OF AN ELECTRONIC SYSTEM BY SINTERING

Procédé d'interconnexion de composants d'un système électronique par frittage Procédé d'interconnexion de composants d'un système électronique, comportant les étapes de: a) dépôt d'une solution de frittage sur un premier composant pour former une couche d'interconnexion, la solution de frittage comportant un solvant, des nanoparticules métalliques dispersées dans le solvant, et un agent stabilisant adsorbé sur les nanoparticules métalliques, les nanoparticules métalliques comportant pour plus de 95,0 %, de préférence pour plus de 99,0 % de leur masse un métal choisi parmi l'argent, l'or, le cuivre et leurs alliages et présentant une forme polyédrique de rapport d'aspect supérieur à 0,8, b) élimination, au moins partielle, du solvant de la couche d'interconnexion de manière à former au moins un agglomérat ordonné dans lequel les nanoparticules métalliques sont disposées régulièrement selon trois axes, l'agent stabilisant liant entre elles et maintenant à distance les unes des autres au moins ...

Tungsten heavy metal alloy powders and methods of forming them

In various embodiments, metallic alloy powders are formed at least in part by spray drying to form agglomerate particles and/or plasma densification to form composite particles.

Flexible feedstock

A flexible 3D printing feedstock material is disclosed. The flexible 3D printing feedstock material includes 45-80 vol % of a powder having at least one of a metal powder and a ceramic powder, 0-5 vol % of a compatibilizer, 10-35 vol % of a soluble flexibilizer, and 5-35 vol % of a non-soluble binder component. Methods of forming the flexible 3D printing feedstock material by melt mixing the components are disclosed. Methods of producing a 3D printed part by operating a fused deposition modeling 3D printer loaded with a filament formed of the 3D printing feedstock material are also disclosed.

THERMOPLASTIC-EXTRUSION AND/OR TWO-COMPONENT POLYMER ADDITIVE, AND METHOD FOR PRODUCING SAME AND USE FOR SAME AS ADDITIVE

FEEDSTOCK FOR AN ADDITIVE MANUFACTURING METHOD AND ADDITIVE MANUFACTURING METHOD USING THE SAME

BINDING AGENTS FOR PRINTING 3D GREEN BODY OBJECTS

STEREOLITHOGRAPHY PROCESS FOR MANUFACTURING A COPPER PART HAVING A LOW RESISTIVITY

Process for manufacturing a copper part comprising at least the following successive steps: shaping a part by stereolithography, the shaping being carried out by: forming a layer of paste comprising a powder of copper particles, one or more photopolymerizable precursors of a first resin, a photoinitiator and, optionally, an optical additive, photopolymerizing the photopolymerizable precursor(s) of the first resin, the steps and forming a cycle that can be repeated a plurality of times, carrying out a first heat treatment, under an oxidizing atmosphere containing at least 10 vol % of an oxidizer, such as dioxygen, at a first temperature Td so as to eliminate the first resin, and carrying out a second heat treatment, under a reducing atmosphere, at a second temperature Tf, above the first temperature Td, so as to sinter the copper particles to obtain a copper part.

3D PRINTER FILAMENT COMPOSITION CONTAINING METAL POWDER, AND FILAMENT USING SAME

The present invention provides a 3D printer composition, a 3D printer filament using same, and a method for manufacturing a metal steel product by using the filament, the composition including: 10 wt % to 30 wt % of a polymer binder including 3.5 wt % to 10 wt % of polyacetal, 3.5 wt % to 10 wt % of a polyolefin elastomer, 2 wt % to 6 wt % of a plasticizer, and 1 wt % to 4 wt % of a lubricant; and 70 wt % to 90 wt % of a metal powder.

BINDER FOR INJECTION-MOULDING COMPOSITION

L'invention concerne un liant pour composition de moulage par injection comprenant : - au moins 35% vol. d'une base polymérique, - de 40 à 55 % vol. d'un mélange de cires, - et 10% vol. d'un surfactant, dans lequel la base polymérique contient des copolymères d'éthylène et d'acétate de vinyle, ainsi que du polyéthylène, du polypropylène et une résine acrylique.

STEREOLITHOGRAPHY PROCESS FOR MANUFACTURING A COPPER PART HAVING A LOW RESISTIVITY

BORON NITRIDE NANOTUBE ALUMINUM COMPOSITES AND METHODS OF MANUFACTURING THE SAME

Methods for large-scale additive manufacturing of high-strength boron nitride nanotubes (BNNT) / aluminum (Al) (e.g., reinforced Al alloy) metal matrix composites (MMCs) (BNNT/A1 MMCs), as well as the BNNT/A1 MMCs produced by the large-scale additive manufacturing methods, are provided. A combination of ultrasonication and spray drying techniques can produce good BNNT/Al alloy feedstock powders, which can be used in a cold spraying process.

SILVER POWDER, METHOD FOR PRODUCING THE SAME, AND CONDUCTIVE PASTE

A silver powder containing: silver particles; and an adherent that is attached to surfaces of the silver particles and contains a metal oxide that has a melting point lower than a melting point of silver.

MULTILAYERED METAL NANOPARTICLES

Functional sheet manufactured through a powder spray method and method of manufacturing the same

A method of manufacturing a functional sheet according to an embodiment of the present invention, comprise powdering a filler with specific functional component and a binder, charging the filler and the binder with second polarity, spraying the binder and the filler onto an upper surface of an electrode plate charged with first polarity opposite to the second polarity, heat-treating the binder and filler, pressing an upper surface of the filler with a rolling roller, and separating the binder and the filler from the electrode plate. Therefore, the method can improve functionality while reducing harmfulness by manufacturing the functional sheet using a powdered filler and binder without using an organic solvent.

Tungsten heavy metal alloy powders and methods of forming them

In various embodiments, metallic alloy powders are formed at least in part by spray drying to form agglomerate particles and/or plasma densification to form composite particles.

Surface-treated metal powder and conductive composition

There is provided a more versatile technique that is useful for enhancing the sintering delay property of a metal powder. A metal powder surface-treated with at least one coupling agent comprising Si, Ti, Al or Zr, wherein a total adhesion amount of Si, Ti, Al and Zr is 200 to 10,000 μg with respect to 1 g of the surface-treated metal powder, wherein a 1% by mass aqueous solution of the coupling agent indicates a pH of 7 or less, and wherein a sintering starting temperature is 500° C. or higher.

METHOD OF MANUFACTURING MODELED BODY, METHOD OF MODELING SOLIDIFIED OBJECT, AND MODELED BODY

A method of manufacturing a modeled body includes: modeling including applying a modeling solution (10) to each layer of powder (20) laid in a layer, to solidify the powder to model a solidified object (100); sintering the solidified object (100) to obtain a sintered body (100S) of the solidified object (100); and removing a sacrificial body (102) from the sintered body (100S), to obtain a modeled body (101). At the modeling, the modeling solution (10) is applied to a modeled body area in the solidified object (100) and a border area in the solidified object (100) such that, after the modeling solution (10) is applied, a density of the powder at the border area is smaller than a density of the powder in the modeled body area. The modeled body area corresponds to the modeled body (101). The border area corresponds to a border (103) between the modeled body (101) and the sacrificial body (102) .

METAL POWDER, GREEN COMPACT THEREOF, AND METHOD FOR PRODUCING THEM

A metal powder capable of producing a dust core having a high saturation magnetic flux density, excellent rust resistance, and a low iron loss. The metal powder includes from 1.0% to 15.0% of Si, from 1.0% to 13.0% of Cr, from 10 ppm to 10000 ppm of Cl, from 100 ppm to 10000 ppm of S (sulfur), and from 0.2% to 7.0% of O (oxygen) by mass concentration, the remainder including Fe and unavoidable impurities, in which the average particle diameter of the metal powder is from 0.1 μm to 2.0 μm. This facilitates the production of a dust core having a high magnetic flux density, excellent rust resistance, and a low iron loss.

DIRECT INK PRINTING OF MULTI-MATERIAL COMPOSITE STRUCTURES

Methods for fabricating a multi-material composite structure are described. Methods for fabricating a multi-material composite structure include forming a first colloidal ink solution with a first material matrix, water, and a rheology modifying agent; forming a second colloidal ink solution with a second material matrix, water, and a rheology modifying agent; printing a first layer on a substrate using a first printing nozzle carrying the first colloidal ink solution; printing a second layer on top of the first layer using a second printing nozzle carrying the second colloidal ink solution; forming a 3D structure by printing a plurality of layers including the first layer and the second layer printed in an alternating pattern; and sintering the 3D structure to form the multi-material composite structure.

Conductive paste and ceramic electronic component

A conductive paste includes a conductive metal powder and a curable resin. The conductive metal powder includes Ag, Cu, and Ni. In the conductive metal powder, a mass ratio of Ag is about 3.0 wt % or more and about 10.0 wt % or less, a mass ratio of Cu is about {(1−mass ratio of Ag/100)×70} wt % or more and about {(1−mass ratio of Ag/100)×95} wt % or less, and a mass ratio of Ni is about {(1−mass ratio of Ag/100)×5} wt % or more and about {(1−mass ratio of Ag/100)×30} wt % or less.

COMPOSITION FOR 3D PRINTING COMPLEX CERAMIC AND/OR METALLIC SHAPED BODIES HAVING A HIGHER MECANICAL STRENGTH AFTER DEBINDING AND BEFORE SINTERING

CONDUCTIVE PASTE AND CERAMIC ELECTRONIC COMPONENT

A conductive paste includes a conductive metal powder and a curable resin. The conductive metal powder includes Ag, Cu, and Ni. In the conductive metal powder, a mass ratio of Ag is about 3.0 wt % or more and about 10.0 wt % or less, a mass ratio of Cu is about {(1−mass ratio of Ag/100)×70} wt % or more and about {(1−mass ratio of Ag/100)×95} wt % or less, and a mass ratio of Ni is about {(1−mass ratio of Ag/100)×5} wt % or more and about {(1−mass ratio of Ag/100)×30} wt % or less. 1. A conductive paste comprising:a conductive metal powder; anda curable resin; whereinthe conductive metal powder includes Ag, Cu, and Ni;a mass ratio of the Ag in the conductive metal powder is about 3.0 wt % or more and about 10.0 wt % or less;a mass ratio of the Cu in the conductive metal powder is about {(1−mass ratio of Ag/100)×70} wt % or more and about {(1−mass ratio of Ag/100)×95} wt % or less; anda mass ratio of the Ni in the conductive metal powder is about {(1−mass ratio of Ag/100)×5} wt % or more and about {(1−mass ratio of Ag/100)×30} wt % or less.2. The conductive paste according to claim 1 , wherein the mass ratio of the Ag in the conductive metal powder is about 3.0 wt % or more and about 5.0 wt % or less.3. The conductive paste according to claim 1 , whereinthe mass ratio of the Cu in the conductive metal powder is about {(1−mass ratio of Ag/100)×70} wt % or more and about {(1−mass ratio of Ag/100)×90} wt % or less; andthe mass ratio of the Ni in the conductive metal powder is about {(1−mass ratio of Ag/100)×10} wt % or more and about {(1−mass ratio of Ag/100)×30} wt % or less.4. The conductive paste according to claim 1 , whereinthe conductive metal powder includes the Cu and the Ni as a CuNi alloy;the CuNi alloy is provided as core particles; anda coating layer including the Ag is located on a surface of each of the core particles.5. A ceramic electronic component comprising:an outer electrode; whereinthe outer electrode includes a conductive resin layer including a ...

A PROCESS FOR PRODUCING A THREE-DIMENSIONAL (3D) OBJECT EMPLOYING GRANULATES

METHOD FOR INTERCONNECTION OF COMPONENTS OF AN ELECTRONIC SYSTEM BY SINTERING

Procédé d'interconnexion de composants d'un système électronique par frittage Procédé d'interconnexion de composants d'un système électronique, le procédé comportant les étapes de: a) dépôt d'une solution de frittage sur un premier composant pour former une couche d'interconnexion, la solution de frittage comportant un solvant, des nanoparticules métalliques dispersées dans le solvant, et un agent stabilisant adsorbé sur les nanoparticules métalliques, les nanoparticules métalliques comportant pour plus de 95,0 %, de préférence pour plus de 99,0 % de leur masse un métal choisi parmi l'argent, l'or, le cuivre et leurs alliages et présentant une forme polyédrique de rapport d'aspect supérieur à 0,8, b) élimination, au moins partielle, du solvant de la couche d'interconnexion de manière à former au moins un agglomérat dans lequel l'agent stabilisant lie entre elles et maintient à distance les unes des autres au moins une partie des nanoparticules métalliques, c) déliantage et frittage de la ...

INJECTION MOLDING COMPOSITION, METHOD FOR PRODUCING INJECTION MOLDED BODY, AND METHOD FOR PRODUCING TITANIUM SINTERED BODY

An injection molding composition contains a titanium-based powder containing titanium as a main component and having an average particle diameter of 15 μm or more and 35 μm or less, a ceramic powder containing a ceramic as a main material and having an average particle diameter of 1 nm or more and 100 nm or less, and an organic binder. The ceramic is an oxide-based ceramic containing an oxide as a main component, and a standard free energy of formation of the oxide at 1000° C. may be lower than a standard free energy of formation of titanium oxide at 1000° C. 1. An injection molding composition comprising:a titanium-based powder containing titanium as a main component and having an average particle diameter of 15 μm or more and 35 μm or less;a ceramic powder containing a ceramic as a main material and having an average particle diameter of 1 nm or more and 100 nm or less; andan organic binder.2. The injection molding composition according to claim 1 , whereinthe ceramic is an oxide-based ceramic containing an oxide as a main component, anda standard free energy of formation of the oxide at 1000° C. is lower than a standard free energy of formation of titanium oxide at 1000° C.3. The injection molding composition according to claim 2 , whereinthe oxide is silicon oxide.4. The injection molding composition according to claim 1 , whereina ratio of the ceramic powder in a total amount of the titanium-based powder and the ceramic powder is 0.01 mass % or more and 0.30 mass % or less.5. The injection molding composition according to claim 1 , whereina melt viscosity at a measurement weight of 100 g, a measurement temperature of 150° C., and a measurement speed of 100 mm/min is 50 Pas or more and 100 Pas or less.6. A method for producing an injection molded body claim 1 , comprising:obtaining an injection molding composition by mixing a titanium-based powder containing titanium as a main component and having an average particle diameter of 15 μm or more and 35 μm or less, ...

ABRADABLE COMPOSITION AND METHOD OF MANUFACTURE

BINDER FOR INJECTION-MOULDING COMPOSITION

Graphene modifying method of metal

A graphene modifying method of metal having following steps of providing metal powders, graphene powders and a binder, the metal powder has metal particles, and the graphene powder has graphene micro pieces, each graphene micro piece is formed by 6-atom unit cells connected with each other, each 6-atom unit cell is connected to a stearic acid functional group by a sp3 bond; mixing the metal powder, the graphene powder, and the binder to generate heat by a friction, each sp3 bond connected with the stearic acid functional group is thereby heated and broken, each 6-atom unit cell is connected with other 6-atom unit cells via the broken sp3 bond, and the metal particles are thereby wrapped by the 6-atom unit cells; and sintering the metal particles into a metal body to transform the plurality of graphene micro pieces into a three-dimensional mash embedded in the metal body.

BINDER FOR INJECTION MOULDING COMPOSITION

A PROCESS FOR PRODUCING A THREE-DIMENSIONAL (3D) OBJECT EMPLOYING GRANULATES

SYSTEMS AND METHODS FOR INJECTION MOLDING OF NANOCRYSTALLINE METAL POWDERS

METALLIC ADHESIVE COMPOSITIONS HAVING GOOD WORK LIVES AND THERMAL CONDUCTIVITY, METHODS OF MAKING SAME AND USES THEREOF

METAL POWDER

Brown body including a metal nanoparticle binder

According to examples, a brown body has from about 0.02 wt. % to about 10 wt. % of a metal nanoparticle binder, in which the metal nanoparticle binder is selectively located within an area of the brown body to impart a strength greater than about 1 kPa to the area.

NiCrBSi-ZrB2 METAL CERAMIC POWDER, COMPOSITE COATING FOR HIGH TEMPERATURE PROTECTION, AND PREPARATION METHOD THEREFOR

The metal ceramic powder with a particle size of 15-45 µm and suitable for thermal spraying is prepared through a combination of mechanical ball milling, spray granulation, and vacuum sintering. The metal ceramic powder is sprayed on a surface of a steel substrate adopting the high velocity oxygen fuel (HVOF) technology with oxygen-propane as fuel and taking oxygen as a combustion improver, propane as fuel, nitrogen as powder feeding carrier gas, and air as a cooling medium to prepare and form the NiCrBSi—ZrB2 composite coating. The present disclosure solves the problem that ZrB2 ceramic is difficult to compact during sintering and improves powder bonding strength and fluidity. The preparation method is simple, has advantages of high coating deposition efficiency and convenient equipment operation, and is cost-effective. The preparation method can improve thermal corrosion resistance and high-temperature wear resistance of a surface of boiler, and prolonging lifetime of the boiler.

DIP-COAT BINDER SOLUTIONS COMPRISING METAL DIP-COAT POWDER FOR USE IN ADDITIVE MANUFACTURING

A dip-coat binder solution (144) comprises a metal dip-coat powder (146) and a dip-coat binder (148). The dip-coat binder solution (144) has a viscosity greater than or equal to 1 cP and less than or equal to 40 cP. The metal dip-coat powder (146) may comprise a stainless steel alloy, a nickel alloy, a copper alloy, a copper-nickel alloy, a cobalt-chrome alloy, a titanium alloy, an aluminum alloy, a tungsten alloy, or a combination thereof. A method of forming a part includes providing a green body part (140) comprising a plurality of layers (112) of print powder (114), dipping the green body part (140) in a dip-coat binder solution (144) to form a dip-coated green body part (140), and heating the dip-coated green body part (140). After dipping, the dip-coated green body part (140) has a surface roughness Ra less than or equal to 10 µm.

BORON NITRIDE NANOTUBE ALUMINUM COMPOSITES AND METHODS OF MANUFACTURING THE SAME

Methods for large-scale additive manufacturing of high-strength boron nitride nanotubes (BNNT)/aluminum (Al) (e.g., reinforced Al alloy) metal matrix composites (MMCs) (BNNT/Al MMCs), as well as the BNNT/Al MMCs produced by the large-scale additive manufacturing methods, are provided. A combination of ultrasonication and spray drying techniques can produce good BNNT/Al alloy feedstock powders, which can be used in a cold spraying process.

COMPOSITIONS, COMPRISING SILVER NANOPLATELETS

Printable lithium compositions

A printable lithium composition is provided. The printable lithium composition includes lithium metal powder; a polymer binder, wherein the polymer binder is compatible with the lithium powder; and a rheology modifier, wherein the rheology modifier is compatible with the lithium powder and the polymer binder. The printable lithium composition may further include a solvent compatible with the lithium powder and with the polymer binder.

BINDER COMPOSITION FOR SINTERING INORGANIC PARTICLES AND PROCESS FOR USING SAME

COMPOSITIONS, COMPRISING PLATELET-SHAPED TRANSITION METAL PARTICLES

METAL POWDER COMPOSITION COMPRISING A BINDER

PRELITHIATED ANODES USING PRINTABLE LITHIUM COMPOSITIONS

A prelithiated anode is provided. The prelithiated anode includes an active anode material having deposited thereon a printable composition. The printable lithium composition includes comprising on a solution basis of about 10 to about 50 percent of a lithium metal powder about 0.1 to about 20 percent of a polymer binder, wherein the polymer binder is compatible with the lithium metal powder and is selected from the group consisting of unsaturated elastomers, saturated elastomers, polyacrylic acid, polyvinylidene chloride and polyvinyl acetate, about 0.1 to about 30 percent of a rheology modifier, wherein the rheology modifier is compatible with the lithium metal powder and the polymer binder, and about 50 to about 95 percent of a non-polar solvent, wherein the solvent is compatible with the lithium metal powder and with the polymer binder and wherein the solvent is selected from the group consisting of hydrocarbons, acyclic hydrocarbons, and aromatic hydrocarbons.

COMPOSITION FOR 3D PRINTING CERAMIC AND/OR METALLIC SHAPED BODIES

THREE-DIMENSIONAL PRINTING WITH GAS-ATOMIZED STAINLESS STEEL PARTICLES

A three-dimensional printing kit can include a binding agent and a particulate build material. The binding agent can include a binder in a liquid vehicle. The particulate build material can include from about 80 wt % to 100 wt % gas-atomized stainless steel particles. The gas-atomized stainless steel particles can include from about 3 wt % to about 15 wt % nickel and from about 10 wt % to about 20 wt % chromium and can have an average oxygen content of from about 1200 ppm to about 2200 ppm by weight. 1. A three-dimensional printing kit comprising:a binding agent including a binder in a liquid vehicle; anda particulate build material including from about 80 wt % to 100 wt % gas-atomized stainless steel particles, wherein the gas-atomized stainless steel particles include from about 3 wt % to about 15 wt % nickel and from about 10 wt % to about 20 wt % chromium and wherein an average oxygen content of the gas-atomized stainless steel particles is from about 1200 ppm to about 2200 ppm by weight.2. The three-dimensional printing kit of claim 1 , wherein the binder is a latex binder and the binding agent includes from about 2 wt % to about 30 wt % latex particles.3. The three-dimensional printing kit of claim 1 , wherein the gas-atomized stainless steel particles have a D50 particle size ranging from about 5 μm to about 20 μm.4. The three-dimensional printing kit of claim 1 , wherein the gas-atomized stainless steel particles have a D90 particle size from about 10 μm to about 30 μm.5. The three-dimensional printing kit of claim 1 , wherein the average oxygen content of the gas-atomized stainless steel particles ranges from about 1400 ppm to about 1800 ppm by weight.6. The three-dimensional printing kit of claim 1 , wherein the gas-atomized stainless steel particles include an average carbon content from about 50 ppm to about 1200 ppm by weight.7. The three-dimensional printing kit of claim 1 , wherein the gas-atomized stainless steel particles include from about 10 wt % ...

METHOD FOR ADDITIVE MANUFACTURE OF A COMPONENT

Binder for injection moulding compositions

A binder for an injection moulding composition including: from 40 to 55 volume percent of a polymeric base, from 35 to 45 volume percent of a mixture of waxes or a mixture of wax and palm oil, and at least 5 volume percent of at least one surfactant, wherein the polymeric base is formed of copolymers of ethylene and methacrylic or acrylic acid, copolymers of ethylene and propylene and/or maleic anhydride-grafted polypropylene, and polymers soluble in isopropyl alcohol, propyl alcohol and/or turpentine, and chosen from the group including a cellulose acetate butyrate, a polyvinyl butyral and a copolyamide, the respective quantities of the binder components being such that their sum is equal to 100 volume percent of the binder.

BINDER FOR INJECTION-MOULDING COMPOSITION

L'invention concerne un liant pour composition de moulage par injection comprenant : - au moins 35% vol. d'une base polymérique, - de 40 à 55 % vol. d'un mélange de cires, - et 10% vol. d'un surfactant, dans lequel la base polymérique contient des copolymères d'éthylène et d'acétate de vinyle, ainsi que du polyéthylène, du polypropylène et une résine acrylique.

METHOD FOR THE ADDITIVE PRODUCTION OF AT LEAST ONE METALLIC AND / OR CERAMIC COMPONENT, AND MATERIAL COMPOSITION FOR SAME

Bei einem Verfahren zur additiven Fertigung wenigstens eines metallischen und/oder keramischen Bauteils, umfassend a) das additive Aufbauen wenigstens eines Grünteils in einer additiven Druckvorrichtung aus einer Materialzusammensetzung, die Partikel aus Metall und/oder Keramik und einen organischen Binder umfasst, b) das Entbindern des wenigstens einen Grünteils, und c) das Sintern des wenigstens einen Grünteils, um das Bauteil zu erhalten, sind die Partikel mit wenigstens einer sie umhüllenden Barriereschicht versehen.

SINTERING PASTE AND METHOD FOR PRODUCING A SINTERING PASTE

The invention concerns a sintering paste for forming a copper-containing interconnection layer between two solid substrates, wherein the sintering paste is obtained by a) providing copper-containing microparticles of elementary metal, a binder, a copper formate and a complexing agent complexing the copper formate, wherein the complexing agent is an alkanolamine or a diamine, wherein the binder is a diol or a triol, b) mixing the copper formate, the binder and the complexing agent for obtaining a mixture, c) mixing the mixture obtained in step b) and the copper-containing microparticles for obtaining a composition, d) heating the composition obtained in step c) to a temperature in the range from 120 °C to 180 °C and maintaining the temperature, e) waiting until at least 75 wt.% of the complexing agent is evaporated and copper nanoparticles are formed for obtaining the sintering paste.

Three-dimensional printing

Described herein are compositions, methods, and systems for printing metal three-dimensional objects. In an example, described is a composition for three-dimensional printing comprising: a metal powder build material, wherein the metal powder build material has an average particle size of from about 10 μm to about 250 μm; and a binder fluid comprising: an aqueous liquid vehicle, and latex polymer particles dispersed in the aqueous liquid vehicle, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm.

COMPOSITION FOR 3D PRINTING CERAMIC AND/OR METALLIC SHAPED BODIES

A composition suitable for 3D printing. The composition is in the form of a filament and includes: a) a metal and/or ceramic powder: b) an organic binding phase including two parts: b1) at least one thermoplastic compound selected from thermoplastic polymers and waxes; and b2) at least one volatile organic compound which has a vapor pressure at 50° C., ranging from more than 0 bar to 0.05 bar, wherein the amount of the at least one volatile organic compound ranges from more than 0.5% to 40% (v/v) by volume relative to the total volume of the composition.

THREE-DIMENSIONALPRINTING

An example of a three-dimensional printing kit includes a particulate build material including from about 80 wt % to 100 wt % metal particles based on a total weight of the particulate build material. The three-dimensional printing kit further includes a binder fluid including water and polymer particles in an amount ranging from about 1 wt % to about 40 wt % based on a total weight of the binder fluid. The polymer particles have from about 1% to about 10% of a phosphate functional group.

Direct ink printing of multi-material composite structures

Methods for fabricating a multi-material composite structure are described. Methods for fabricating a multi-material composite structure include forming a first colloidal ink solution with a first material matrix, water, and a rheology modifying agent; forming a second colloidal ink solution with a second material matrix, water, and a rheology modifying agent; printing a first layer on a substrate using a first printing nozzle carrying the first colloidal ink solution; printing a second layer on top of the first layer using a second printing nozzle carrying the second colloidal ink solution; forming a 3D structure by printing a plurality of layers including the first layer and the second layer printed in an alternating pattern; and sintering the 3D structure to form the multi-material composite structure.

COMPUND FOR BONDED MAGNETS, MOLDED BODY AND BONDED MAGNET

A compound for bonded magnet that increases the mechanical strength (for example, crushing strength) of a bonded magnet is provided. The compound for bonded magnet includes a magnetic powder, an epoxy resin, a curing agent, a coupling agent, and a metal salt, and the metal salt is represented by R2M, in which R represents a saturated fatty acid group having 6 or more and 10 or less carbon atoms, while M represents at least one metal element between Ca and Ba.

MAGNETICALLY TUNABLE PLASMON COUPLING OF NANOSHELLS ENABLED BY SPACE-FREE CONFINED GROWTH

A method of forming magnetic/plasmonic hybrid structures is disclosed. The method includes synthesizing colloidal magnetic nanoparticles; modifying the magnetic nanoparticles in a solution of a polymeric ligand; binding metal seed nanoparticles to the surface of the magnetic nanoparticles; and performing a seed-mediated growth on the metal seed nanoparticles by reducing a metal salt in solution to form the magnetic/plasmonic hybrid structures.

PRODUCTION METHOD FOR PHOSPHATE-COATED SmFeN-BASED ANISOTROPIC MAGNETIC POWDER, AND BONDED MAGNET

A method for producing a phosphate-coated SmFeN-based anisotropic magnetic powder, the method includes: a phosphate treatment of adding an inorganic acid to a slurry containing an SmFeN-based anisotropic magnetic powder, water, and a phosphate compound to adjust a pH of the slurry to a range from 1 to 4.5 to form an SmFeN-based anisotropic magnetic powder having a surface on which a phosphate coating is formed; and oxidizing by heat treating the SmFeN-based anisotropic magnetic powder having the surface on which the phosphate coating is formed, in an oxygen-containing atmosphere at a temperature in a range of 200° C. to 330° C., to form the phosphate-coated SmFeN-based anisotropic magnetic powder.

Composite magnetic material and method for manufacturing same

Provided is a composite magnetic material in which low electrical conductivity and high magnetic permeability are achieved, and in which a frequency band in which decoupling is caused encompasses higher frequencies. The composite magnetic material comprises a flat soft magnetic metal powder; insulating particles which are smaller than an average thickness of the soft magnetic metal powder and which are disposed on a surface of the soft magnetic metal powder; and an organic binder material which retains the soft magnetic metal powder and the insulating particles in a dispersed manner. In a cross section in a thickness direction of the soft magnetic metal powder, there is at least one insulating particle per a length of 0.2 μm of the soft magnetic metal powder surface.

METHOD FOR PREPARING LOW MELTING POINT METAL PARTICLES, CONDUCTIVE PASTE AND METHOD FOR PREPARING THE SAME

A method for prepares low melting point metal particles, a conductive paste and a method for preparing the conductive paste, and relates to the technical field of functional materials. The method for preparing low melting point metal particles includes providing an organic resin carrier having fluidity, adding a low melting point metal material and the organic resin carrier into a sealed container for a vacuuming operation or filling a protective gas, making a temperature in the sealed container higher than the melting point of the low melting point metal and performing dispersion by stirring, and lowering the temperature, after performing the dispersion, to be below the melting point of the low melting point metal with continuous stirring during a cooling process to obtain low melting point metal particles dispersed in the organic resin carrier. Low melting point metal particles can be effectively prepared.

Preparation method of cemented carbide with iron, cobalt and copper medium-entropy alloy as binding phase

A preparation method of cemented carbide with FeCoCu medium-entropy alloy as binding phase is provided. The preparation method includes: 1) preparing FeCoCu precursor powders by solution combustion synthesis; 2) preparing FeCoCu medium-entropy alloy powders by mechanical alloying; 3) evenly mixing the FeCoCu medium-entropy alloy powders with ultra-fine WC powders and a binder to obtain mixed powders and pressing the mixed powders into a shaped green body; 4) preparing a WC-FeCoCu cemented carbide by microwave sintering after removing the binder from the shaped green body. The preparation method reduces sintering temperature and time and obtains a new-type cemented carbide with fine grains, high hardness and good toughness while reducing the cost.

ALLOY POWDER, PREPARATION METHOD THEREFOR, AND USE THEREFOR

The present disclosure relates to a method for preparing a category of alloy powder and an application thereof. By selecting a suitable alloy system and melting initial alloy melt through low-purity raw materials, high-purity alloy powder, and matrix phase wrapping high-purity alloy powder are precipitated during the solidification process of the initial alloy melt, and the solid solution alloying of the high-purity alloy powder is achieved at the same time. Alloy powder can be obtained by removing the matrix phase wrapping the high-purity alloy powder; high-purity alloy powder can also be obtained by removing the matrix phase wrapping the high-purity alloy powder at an appropriate time. The method is simple and can prepare a variety of alloy powder materials with different morphology at nano-scale, sub-micron level, micron level, and even millimeter level.

Method for additively manufacturing a component, and an additively manufactured component

A process for the additive manufacture of a metallic and/or vitreous and/or ceramic component, a mixture of substrate particles and an at least two-phase binder is firstly provided. The mixture is preferably provided as composite particles, so that the substrate particles adhere to one another by the at least two-phase binder. The mixture is selectively melted layerwise by electromagnetic radiation so that a shaped part is additively produced. The shaped part is taken out from the mixture which has not been melted and the at least two-phase binder is subsequently removed, preferably successively. The process produces a microporous shaped part which after sintering leads to a component having a desired density and a desired mechanical and/or thermal stability.

Three-dimensional (3D) printing

In a three-dimensional (3D) printing method example, a metallic build material is applied. A binder fluid is selectively applied on at least a portion of the metallic build material. The binder fluid includes a liquid vehicle and polymer particles dispersed in the liquid vehicle. The application of the metallic build material and the selective application of the binder fluid are repeated to create a patterned green part. The patterned green part is heated to at about a melting point of the polymer particles to activate the binder fluid and create a cured green part. The cured green part is heated to a thermal decomposition temperature of the polymer particles to create an at least substantially polymer-free gray part. The at least substantially polymer-free gray part is heated to a sintering temperature to form a metallic part.

Method of Making Porous Metal Articles

In one embodiment, the present invention may be a method of making a porous biocompatible metal article by combining a metal powder with a homogenizing aid to form metal granules, including blending the metal granules and an extractable particulate to form a composite, forming the composite into a green article, removing the extractable particulate from the green article to form a metal matrix and pore structure, and sintering the metal matrix and pore structure. Furthermore the present invention may include a second homogenizing aid combined with the extractable particulate. The present invention also includes shaping the metal matrix and pore structure with or without the use of a binder.

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.

Lubricant system for use in powder metallurgy

The present invention is directed to metallurgical powder compositions having improved lubricant properties. These compositions of the invention include at least 90 wt. % of an iron-based metallurgical powder; a Group 1 or Group 2 metal stearate; a first wax having a melting range of between about 80 and 100° C.; a second wax having a melting range of between about 80 and 90° C.; inc phosphate; boric acid; acetic acid; phosphoric acid; and polyvinylpyrrolidone. Methods of compacting the compositions, as well as compacted articles prepared using those methods, are also described.

Soft magnetic metal powder and dust core

A soft magnetic metal powder includes a plurality of soft magnetic metal particles composed of an Fe—Co based alloy. The Fe—Co based alloy includes 0.50 mass % or more and 8.00 mass % or less of Co and a remaining part composed of Fe and an inevitable impurity. A soft magnetic metal powder includes a plurality of soft magnetic metal particles composed of an Fe—Co based alloy. The Fe—Co based alloy includes 0.50 mass % or more and 8.00 mass % or less of Co, 0.01 mass % or more and 8.00 mass % or less of Si, and a remaining part composed of Fe and an inevitable impurity. The present invention can provide a soft magnetic metal powder or so having a favorable corrosion resistance.

Bonding material and bonded product using same

There are provided a bonding material capable of bonding an electronic part to a substrate by means of a silver bonding layer which is difficult to form large cracks even if the cooling/heating cycle is repeated, and a bonded product wherein an electronic part is bonded to a substrate by using the same. In a bonded product wherein a semiconductor chip such as an SiC chip (having a bonded surface plated with silver) serving as an electronic part is bonded to a copper substrate via a silver bonding layer containing a sintered body of silver, the silver bonding layer has a shear strength of not less than 60 MPa and has a crystalline diameter of not larger than 78 nm on (111) plane thereof.

Preparation of formed orthopedic articles

In one embodiment, the present invention may be a method of forming a porous and/or dense article from metal powder, including adding to a mold a first feedstock comprising an agglomerated metal powder and an agglomeration agent; forming said first feedstock into a green state dense article; and removing said agglomeration agent. Furthermore, the present invention may include a second feedstock including an agglomerated metal powder, a space filling material and an agglomeration agent which may be formed into a green state porous article. The present invention also includes a dense and/or porous article manufactured by various methods, as well as methods for creating the dense and porous feedstocks. Moreover, the present invention may include an article which may be a medical implant.

Liquid composition

A liquid composition includes copper particles, an organic acid, and a solvent. The copper particle has a particle size of 0.5 μm˜30 μm which falls in a micron scale. The liquid composition performs reaction sintering by redox reactions taken place between the copper particles and an organic acid solution at a low temperature of 150° C. in order to produce a dense copper layer and improve the conventional micron-scale copper particles that requires a protective atmosphere for the high-temperature sintering before achieving the required densification. This liquid composition also prevents an excessive oxidation of the nano copper particles during the low-temperature sintering process and a failure of the dense sintering. Due to the agglomeration of nano copper particles, some areas have to be sintered first, so that the sintered products have a good uniformity of tissue and a low resistance below 0.04 ohm per square (Ω/□).

Method for Reducing Thin Films on Low Temperature Substrates

A method for producing an electrically conductive thin film on a substrate is disclosed. Initially, a reducible metal compound and a reducing agent are dispersed in a liquid. The dispersion is then deposited on a substrate as a thin film. The thin film along with the substrate is subsequently exposed to a pulsed electromagnetic emission to chemically react with the reducible metal compound and the reducing agent such that the thin film becomes electrically conductive.

Multilayered Metal Nano and Micron Particles

A sintering powder, wherein a least a portion of the particles making up the sintering powder comprise: a core comprising a first material; and a shell at least partially coating the core, the shell comprising a second material having a lower oxidation potential than the first material.

Process for improving the flexural toughness of moldings

Poly-1,3-dioxepane, poly-1,3-dioxolane, polytetrahydrofurane or mixtures thereof are used in molding materials comprising polyoxymethylene or a copolymer containing a majority of oxymethylene units, for improving the flexural toughness of moldings formed from the molding materials.

BINDER AGENTS FOR THREE-DIMENSIONAL PRINTING

The present disclosure describes binder agents for printing three-dimensional green body objects, which can include water, an organic co-solvent, a nonionic surfactant, a dihydrazide compound, and latex particles. The nonionic surfactant can include two hydrophilic head groups and two hydrophobic tail groups per molecule. 1. A binder agent for printing a three-dimensional green body object comprising:water;an organic co-solvent;a nonionic surfactant comprising two hydrophilic head groups and two hydrophobic tail groups per molecule;a dihydrazide compound; andlatex particles.3. The binder agent of claim 2 , wherein r is 1 claim 2 , t is 1 claim 2 , n+m is from 0 to 5 claim 2 , and p+q is 0.4. The binder agent of claim 1 , wherein the dihydrazide compound is isophthalic dihydrazide claim 1 , adipic dihydrazide claim 1 , succinic dihydrazide claim 1 , carbodihydrazide claim 1 , or a combination thereof.5. The binder agent of claim 1 , wherein the dihydrazide compound is included in an amount from about 0.1 wt % to about 3 wt % with respect to a total weight of the binder agent claim 1 , and wherein the nonionic surfactant is included in an amount from about 0.02 wt % to about 4 wt % with respect to the total weight of the binder agent.6. The binder agent of claim 1 , wherein the latex particles comprise polymerized monomers claim 1 , wherein the polymerized monomers include:a first monomer having an acid group; anda second monomer having a vinyl group and without an acid group.7. The binder agent of claim 6 , wherein the first monomer comprises acrylic acid claim 6 , methacrylic acid claim 6 , itaconic acid claim 6 , crotonic acid claim 6 , vinylbenzoic acid claim 6 , carboxyethyl acrylate claim 6 , carboxyethyl methacrylate claim 6 , carboxypropyl acrylate claim 6 , carboxypropyl methacrylate claim 6 , or a combination thereof claim 6 , and wherein the second monomer comprises C1-C20 linear or branched alkyl acrylate claim 6 , C1-C20 linear or branched alkyl ...

Powder metallurgical method

A powder metallurgical method includes preparing a liquid lubricant by mixing ethylene bis stearamide 60 to 70 wt % and erucamide 30 to 40 wt % at 150 to 170° C. in a high temperature stirring process. A pulverized solid lubricant is prepared by cooling the liquid lubricant to form a solid and pulverizing the solid. A powder metallurgy composition is prepared by mixing the pulverized solid lubricant 0.4 to 0.75 part by weight to metal-based powder 100 parts by weight, and a molded body is prepared by compression molding of the powder metallurgy composition.

Powder mixture for powder metallurgy and method for producing powder mixture for powder metallurgy

Provided is a powder mixture for powder metallurgy that has excellent fluidity, can be ejected from a green compacting die with little force, and can suppress die galling in forming. The powder mixture comprises: a raw material powder; a copper powder; a binder; a graphite powder; and carbon black. The raw material powder contains an iron-based powder in an amount of 90 mass % or more with respect to the raw material powder. An average particle size of the graphite powder is less than 5 μm. Additive amounts of the binder, the graphite powder, the copper powder, and the carbon black are in specific ranges. A surface of the raw material powder is coated with at least part of the binder. A surface of the binder is coated with at least part of the graphite powder, at least part of the copper powder, and at least part of the carbon black.

Three-dimensional printing

Described herein are compositions, methods, and systems for printing metal three-dimensional objects. In an example, described is a composition for three-dimensional printing comprising: a metal powder build material, wherein the metal powder build material has an average particle size of from about 10 μm to about 250 μm; and a binder fluid comprising: an aqueous liquid vehicle, and latex polymer particles dispersed in the aqueous liquid vehicle, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm.

Multilayered metal nano and micron particles

A sintering powder, wherein a least a portion of the particles making up the sintering powder comprise: a core comprising a first material; and a shell at least partially coating the core, the shell comprising a second material having a lower oxidation potential than the first material.

Three-dimensional printing

An example three-dimensional (3D) printing kit includes a particulate build material, which includes from about 80 wt % to 100 wt % metal particles based on a total weight of the particulate build material. In some examples, the kit also includes a binder fluid, which includes water and a curable polyurethane adhesion promoter in an amount ranging from about 0.5 wt % to about 15 wt % based on a total weight of the binder fluid. The curable polyurethane adhesion promoter is formed from a polyisocyanate; an acrylate or methacrylate, the acrylate or methacrylate having at least one hydroxyl functional group and having an acrylate functional group or a methacrylate functional group; a carboxylic acid including one or two hydroxyl functional groups, an amount of the carboxylic acid ranging from 0 wt % to about 10 wt %; and a sulfonate or sulfonic acid having one or two hydroxyl functional groups or one or two amino functional groups.

Techniques using lubricant composite for manufacture of parts from metal powder

Lubricant composition and related methods and apparatus for manufacturing a green compact in a die cavity during a powder metallurgy operation wherein the lubricant composition includes a first component and a second component. The first component has a starting phase, an active phase, and a transition temperature at which at least part of the first component changes state from the starting phase to the active phase. Upon contact with wall surfaces of the die cavity, the first component transitions from the starting phase to the active phase, and the second component adheres to the active phase of the first component to form a lubrication layer coating the die wall surfaces. The component may be a first solid particulate component, such as polymeric particulate material or a sugar, or a first gaseous component, such as water vapor or palm oil vapor, respectively able to melt or condense upon contact with die cavity.

Three-dimensional shaped article production method

A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a first layer formation step of forming a first layer on a support by supplying a first composition containing first particles and a binder, a second layer formation step of forming a second layer composed of one layer or a plurality of layers on the first layer by supplying a second composition containing second particles and a binder, and a separation step of separating the second layer from the support through the first layer, wherein after the separation step, a sintering step of sintering the second layer is performed.

Conductive paste and glass article

A conductive paste contains at least a conductive powder, glass frit, and an organic vehicle. The conductive powder is a mixed powder of an atomized powder prepared by an atomization method and a wet reduced powder prepared by a wet reduction method and the conductive powder contains the atomized powder in the range of 5 to 40 wt %. The atomized powder is 5.2 to 9 μm in average particle size and the content of a chlorine component mixed in the conductive powder is 42 ppm or less. The conductive paste is applied in the form of a line onto a glass substrate 1 and subjected to firing to form conductive films. This conductive paste can prevent glass substrates from undergoing color changes and prevent base layers for conductive films from having structural defects such as cracks.

Metal paste and use thereof for the connecting of components

A metal paste contains (A) 75% to 90% by weight of at least one metal that is present in the form of particles comprising a coating that contains, at least one organic compound, (B) 0% to 12% by weight of at least one metal precursor, (C) 6% to 20% by weight of a mixture of at least two organic solvents, and (D) 0% to 10% by weight of at least one sintering aid. 30% to 60% by weight of the solvent mixture (C) consists of at least one 1-hydroxyalkane with 16-20 C-atoms that is non-substituted except for a methyl substitution on the penultimate C-atom.

Silver-coated copper powder, and conductive paste, conductive coating material and conductive sheet, each of which uses said silver-coated copper powder

Provided is a dendritic silver-coated copper powder which is prevented from agglomeration, while ensuring excellent electrical conductivity by increasing contact points in cases where silver-coated dendritic copper powder particles are in contact with each other. This dendritic silver-coated copper powder is suitable for use in conductive pastes, electromagnetic shielding materials and the like. A dendritic silver-coated copper powder 1 according to the present invention has a dendritic form which comprises a linearly grown main trunk 2 and a plurality of branches 3 arising from the main trunk 2. The main trunk 2 and the branches 3 are configured of copper particles which have plate-like shapes having an average cross-sectional thickness of 0.2-1.0 μm, and the surfaces of which are coated with silver. This dendritic silver-coated copper powder 1 has an average particle diameter (D50) of 5.0-30 μm as determined by a laser diffraction/scattering particle size distribution measuring method.

Soft magnetic powder and method for producing sintered body

A soft magnetic powder contains Fe in a proportion of 45.0 mass % or more and 52.0 mass % or less, Co in a proportion of 47.0 mass % or more and 52.0 mass % or less, and V in a proportion of 0.10 mass % or more and less than 2.0 mass %, wherein in a mass-based particle size distribution measured by a laser diffraction particle size distribution analyzer, when a particle diameter at a cumulative frequency from a small diameter side of 10% is represented by D10, a particle diameter at a cumulative frequency of 50% is represented by D50, and a particle diameter at a cumulative frequency of 90% is represented by D90, (D90−D10)/D50 satisfies 1.0 or more and 3.5 or less.

Wax-based thermoplastic organic binder composition for powder molding, and feedstock composition using same

Disclosed is a wax-based thermoplastic organic binder composition consisting of: 50 to 94 wt % of a wax mixture comprising paraffin wax and microcrystalline wax; 3 to 35 wt % of a polyolefin copolymer having a carbonyl group as a backbone polymer; and 3 to 15 wt % of a process control agent.

Silver paste, and conductive molded article obtained using same

A problem is to provide a silver paste which can produce, without variation in resistivity value, a conductive silver coating film exhibiting resistivity substantially equivalent to the resistance value of bulk silver in low-temperature sintering. The problem is solved by providing a silver paste including a silver nanoparticle aqueous dispersion prepared by using a compound having a polyethyleneimine skeleton as a protective agent, a compound having a functional group reactable with nitrogen atoms in the polyethyleneimine, and at least one compound selected from the group consisting of a compound having an amine functional group and a compound having an amide functional group.

Organic binder for injection moulding for manufacture of metal powder compact

The organic binder consists of polyoxymethylene- a, polypropylene-b, organic compound and thermoplastic resin whose melting points are 150 deg C, 130 deg C, below 150 deg C and below 130 deg C, respectively. The composition ratio of the compounds used in organic binder is 5-20 vol.% of a, 10-40 vol.% of b, 40-80 vol.% of c and 5-30 vol.% of d. The c-component present in the binder includes fatty acid ester, fatty-acid amide, phthalic ester, paraffin wax, polyethylene wax, etc..

Method of removing binder from powder moldings

A method of mixing a powder material and a binder in a predetermined ratio and kneading the mixture so that substantially whole surface of the powder particles are covered by the binder, molding the kneaded mixture into the shapes of desired products, then removing the binder from the moldings without causing expansion or cracks in the moldings before sintering. The binder comprises one or more organic binding substances soluble to an alcohol or to an mixed solvent of an alcohol and benzene or one or more ketones and one or more organic binding substances insoluble to the alcohol or to the mixed solvent. The moldings are put in contact with the alcohol or the mixed solvent to extract the organic binding substances soluble to the alcohol or to the mixed solvent from the moldings. The organic binding substances insoluble to the alcohol or to the mixed solvent are then removed by heat-decomposition. The dissolution of the organic binding substances soluble to the alcohol or to the mixed solvent can be controlled to an appropriate rate by the constituents of the mixed solvent and their ratio of mixture. By this method, it is made possible to remove the binder from the moldings made of powders with small particle sizes and large specific surface areas, which are difficult to remove the binder from without causing defects by the conventional methods, in short time without causing expansion or cracks in them.

An inorganic material binder useful for preparation of metallic and ceramic molded bodies removable in two stages without residue, giving green body and metallic or ceramic molded bodies devoid of pores and cracks

A new binder for inorganic powders comprises a mixture containing (wt.%): a polyoxymethylene homo- or copolymerisate B1 (80-99.5) and a polymer system B2 (0.5-20) immiscible with B1 from polytetrahydrofuran B21 (5-100) and a polymer B22 (0-99.5) from 2-8C olefins, vinylaromatic monomers, vinyl esters of aliphatic 1-8C carboxylic acids, vinyl 1-8C alkylethers or 1-12C alkyl(meth)acrylates. INDEPENDENTR CLAIMS are included for: (1) Thermoplastic masses for the preparation of inorganic molded bodies containing (vol.%): (a) at least one sinterable inorganic powder A (40-85), (b) at least one binder B (15-60), and (c) at least one dispersion adjuvant C (0-5), where the sum of A, B, and C = 100 vol.%; (2) preparation of thermoplastic masses by melting of component B and mixing in of component A and optionally component C; (3) preparation of molded bodies from powder A by (1) injection molding , extrusion, or pressing of a green body (sic), (2) removal of the binder by treatment of the green body (sic) at 20-180 deg C for 24 hours in a gaseous acid containing atmosphere, (3) subsequent heating for 0.1-122 hours at 250-500 deg C, and (4) sintering of the binder-free green body (sic) obtained.

Valve seat

In a valve seat made of an iron-based, composite sintered alloy having hard particles and a solid lubricant dispersed therein to have high wear resistance and good machinability, which is usable in high-power fuel direct injection engines with improved fuel efficiency and low emission, relatively coarse solid lubricant particles in such an amount as not to drastically reduce the strength of a sintered body are dispersed to provide self-lubrication, and as fine solid lubricant particles as not hindering the bonding of matrix particles are dispersed to improve machinability.

粉末冶金用润滑剂以及金属粉末组合物

本发明的粉末冶金用润滑剂，配合由下述式(1)表示的芳香族羧酸而形成：(Z)n-Ar-COOH (1) (式中，Ar为芳基，Z为直接键合于所述芳基的取代基，且为R、OR、OCOR及COOR中的任一种。R为烷基、烯基及炔基中的任一种。n为1~4的整数。在n为2以上的情况下，Z彼此可以相同也可以不同)。

Method for concentrating metallic solution with high viscosity, and metallic concentration solution with high viscosity and method for manufacturing the same, and method for forming of electrode using the same

본 발명은 저비점의 제1용매와 금속 입자를 포함하는 금속성 용액을 제조하는 단계, 상기 금속성 용액에 상기 저비점의 제1용매보다 비점이 높은 고비점의 제2용매를 첨가한 후, 상기 저비점의 제1용매를 증발시키는 단계를 포함하는 금속성 용액의 농축방법을 제공한다. 또한, 상기 농축방법을 통하여 나노(nano) 크기의 금속 초미립자가 독립된 형태로 분산된 고농도, 고점도의 금속성 농축액 및 그 제조방법, 그리고 이를 이용한 전극형성방법을 제공한다. According to the present invention, a method of preparing a metallic solution comprising a first boiling point solvent and metal particles, and adding a second boiling point solvent having a higher boiling point than the first boiling point solvent is added to the metallic solution. It provides a method of concentrating a metallic solution comprising the step of evaporating a solvent. The present invention also provides a high concentration, high viscosity metallic concentrate, a method for preparing the same, and an electrode forming method using the nano-nano-metal ultrafine particles dispersed in an independent form. 금속, 농축, 프린팅, 금속산화물, 부착력 Metal, thickening, printing, metal oxide, adhesion

射出成型用结合剂及包含其的用来制造成型对象的组合物

本发明提出一种射出成型用结合剂，其包含占约3至约20％重量百分比的带有顺丁烯二酸酐基团的聚烯烃、占约30至约40％重量百分比的聚烯烃化合物、占约5至约20％重量百分比的聚甲醛、占约1至约5％重量百分比的硬脂酸及占约35至约60％重量百分比的蜡。本发明的射出成型用结合剂的特点为利用带有顺丁烯二酸酐基团的聚烯烃与聚烯烃化合物及聚甲醛键结，以提升结合剂成分间的兼容性，延长其热裂解时间，达到减少对象的缺陷，提高其尺寸的精确度及一致性的功效。

Moldable composition, process for producing sintered body therefrom and products from same

Moldable compositions comprising metallic powder and/or ceramic powder, mixed an organic binder are disclosed, which comprises an ether polyamine of the formula (1) and/or a primary amine of the formula (2) : ##STR1## wherein A 1 and A 2 are alkylene groups or aryl-substituted alkylene groups; X 1 is a residue of an active hydrogen atom-containing compound having at least 2 active hydrogen atoms; n is at least 1; m is 2-8; and X 2 is an amino group represented by ##STR2## wherein R 1 and R 2 are hydrogen atom, alkyl groups or groups of the formula : --(A 3 --O) k --R 3 , wherein A 3 is an alkylene group, R 3 is hydrogen atom or an alkyl group and k is at least 1; R is hydrogen atom or an alkyl groups containing 1-30 carbon atoms, A is an alkylene group containing 1-4 carbon atoms, and r is an integer of at least 1.

Moldable composition, process for producing sintered body therefrom and products from same

Moldable compositions comprising metallic powder or combination thereof with ceramic powder, mixed an organic binder are disclosed, at least a part of which comprises a synthetic resin component (A) having a heat deformation temperature of 130 DEG C. or higher. The component A may be used in combination with another component (B) having a melting point of 30 DEG C.-100 DEG C., with or without another thermoplastic component (C), having a heat deformation temperature of 13 DEG C. or less. Moldable compositions, comprising metallic and/or ceramic powder mixed with an organic binder comprising a secondary or tertiary amine (D), or combination thereof with a thermoplastic resin (E), are also disclosed.

Binder system and method for particulate material with debind rate control additive

The present invention relates to a binder composition comprising a polycarbonate polymer; an ethylenebisamide wax; a guanidine wetting agent, and an additive which accelerates or delays completion of debinding of the binder composition. The present invention further relates to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein binder is a composition comprising a polycarbonate polymer, an ethylenebisamide wax, a guanidine wetting agent and an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered. The binder composition of the present invention is useful for press and sinter applications as well as for powder injection molding applications.

Binder system and method for particulate material cross-reference to related application

The present invention relates to a binder composition comprising an aliphatic polyester polymer; an ethylenebisamide wax; and a guanidine wetting agent. The composition may also contain an additive which accelerates or extends debinding of the binder composition, and to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein the binder is a composition comprising an aliphatic polyester polymer, an ethylenebisamide wax, and a guanidine wetting agent, and may further include an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered.

Binder system and method for particulate material cross-reference to related application

The present invention relates to a binder composition comprising an aliphatic polyester polymer: an ethylenebisamide wax; and a guanidine wetting agent. The composition may also contain an additive which accelerates or extends debinding of the binder composition, and to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein the binder is a composition comprising an aliphatic polyester polymer, an ethylenebisamide wax, and a guanidine wetting agent, and may further include an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered.

Method for manufacturing three-dimensional shaped object

本发明提供一种三维造型物的制造方法，能够制造可靠性良好的三维造型物。本发明的三维造型物的制造方法是将多个层进行层叠而制造三维造型物的方法，其特征在于，该制造方法反复进行包括层形成工序和接合工序的一系列的工序，在所述层形成工序中，使用包括多个粒子的组成物形成所述层，在所述接合工序中，向所述层照射激光光束，使所述层中所包含的所述粒子彼此接合，在将所述粒子的平均粒径设为D 50 [μm]且将在所述层形成工序中所形成的所述层的厚度设为D S [μm]时，满足D S /D 50 <5.0的关系，通过所述接合工序使所述粒子彼此接合而成的状态的所述层的表面的算术平均高度Sa为15μm以下。

Binder mixture for producing moulded parts using injection methods

本发明提供一种粘合剂混合物，通过该粘合剂混合物拓展了尤其PIM-方法在由其生产的成型件方面的应用范围，所述粘合剂混合物包含至少一种选自聚烯烃的、具有第一软化范围和第一熔体粘度的聚合物化合物A，该化合物A基于所述粘合剂混合物的总量计的量为约10重量%至约60重量%；至少一种具有第二软化范围和第二熔体粘度的聚合物化合物B，该化合物B基于所述粘合剂混合物的总量计的量为约10重量%至约65重量%；至少一种非聚合物化合物C，该化合物C基于所述粘合剂混合物的总量计的量为约10重量%至约65重量%，其中所述化合物A的第一软化范围与所述化合物B的第二软化范围为约80℃至约200℃，所述化合物B的第二熔体粘度比所述化合物A的第一熔体粘度高约2倍至约100倍，并且所述化合物B和所述化合物C在约20℃至约90℃的温度范围可溶于选自丙酮、二甲苯、松节油、四氢呋喃和/或乙酸乙酯的溶剂。

Metal powder metallurgy with lubricator, the manufacture method of its manufacture method, metal-powder compositions and metal powder metallurgy product

本发明的金属粉末冶金用润滑剂包含含有选自下述通式(1)表示的酰胺系化合物和下述通式(2)表示的酰胺系化合物中的1种以上酰胺系化合物的粒状体，粒径大于198μm的粒子低于1质量％，且粒径10μm以下的粒子为10质量％以下，本发明的金属粉末冶金用润滑剂可不阻碍润滑性而实现低密度和低磨耗值，且提供没有裂纹、缺陷和密度不平衡的生坯体和烧结体。 (式中，R 1 和R 2 各自独立地表示碳数13～27的脂族烃基，m表示1～6的数。)R 3 ‑CONH 2 (2)(式中，R 3 表示碳数13～27的脂族烃基)。

Ejection formation bonding agent

本发明提出一种射出成型用结合剂，其包含占约3至约20％重量百分比的带有顺丁烯二酸酐基团的聚烯烃、占约30至约40％重量百分比的聚烯烃化合物、占约5至约20％重量百分比的聚甲醛、占约1至约5％重量百分比的硬脂酸及占约35至约60％重量百分比的蜡。本发明的射出成型用结合剂的特点为利用带有顺丁烯二酸酐基团的聚烯烃与聚烯烃化合物及聚甲醛键结，以提升结合剂成分间的兼容性，延长其热裂解时间，达到减少对象的缺陷，提高其尺寸的精确度及一致性的功效。

Binding agent for inorganic material powders for producing metallic and ceramic moulded bodies

无机物粉末用的粘合剂B含有下列成分的混合物：b1)80-99.5重量%的均聚甲醛或共聚甲醛B1和b2)0.5-20重量%的与B1不混容的聚合物体系B2，所述聚合物体系由下列成分组成：b21)5-100重量%的聚四氢呋喃B21和b22)0-95重量%的至少一种下列物质的聚合物B22：C 2-8 烯烃、乙烯基芳族单体、脂族C 1-8 羧酸的乙烯酯、乙烯基C 1-8 烷基醚或(甲基)丙烯酸C 1-12 烷基酯。

Metal is projected and counter-pressure system and its method

本发明公开了一种金属射出与反压系统以及一种金属射出与反压方法，该金属射出与反压系统包含：一颗粒提供总成；以及一成型单元，其具有一熔融模块、一反压模块与一模具模块；其中，该颗粒提供总成提供颗粒给该熔融模块，该颗粒具有金属粉末与结合剂，该熔融模块使该颗粒形成为熔融流体，该熔融流体提供给该模具模块，该反压模块提供一具有预定压力的反压气体给该模具模块，该熔融流体于该模具模块凝固为一生胚。

A kind of special grind resin copper dish and preparation method thereof

本发明公开了一种专用研磨树脂铜盘，包括树脂结合剂15‑37％、铜粉60‑85％、固化剂0.4‑1.5％、助剂0.6‑2％。本发明的专用研磨树脂铜盘可以提升工件的研磨效率，提高研磨精度，节约研磨成本等，可以替代进口树脂铜盘。本发明还公开了一种专用研磨树脂铜盘的制备方法。

Binder for injection moulding compositions

본 발명은 사출 성형 컴포지션용 바인더에 관한 것으로, - 40 ~ 55 부피% 의 폴리머 베이스, - 35 ~ 45 부피% 의 왁스 혼합물 또는 왁스 및 팜 오일 혼합물, 및 - 적어도 5 부피% 의 적어도 하나의 계면활성제를 포함하고, 폴리머 베이스는 에틸렌 및 메타크릴 또는 아크릴 산의 코폴리머, 에틸렌 및 프로필렌의 코폴리머 및/또는 말레산 무수물 그래프트된 폴리프로필렌, 및 이소프로필 알코올, 프로필 알코올 및/또는 테레빈을 포함하는 군으로부터 선택되고 또한 셀룰로오스 아세테이트 부티레이트, 폴리비닐 부티랄 및 코폴리아미드를 포함하는 군으로부터 선택되는 용매에서 용해성인 폴리머들로 형성되고, 바인더 컴포넌트들의 각 양은 그들의 합이 100 부피% 의 바인더와 동등하도록 되어 있다. The present invention relates to a binder for injection molded compositions, - 40 to 55% by volume of polymer base, - from 35 to 45% by volume of a wax mixture or a mixture of wax and palm oil, and - at least 5% by volume of at least one surfactant, The polymeric base is selected from the group comprising copolymers of ethylene and methacrylic or acrylic acid, copolymers of ethylene and propylene and/or maleic anhydride grafted polypropylene, and isopropyl alcohol, propyl alcohol and/or turpentine and also formed of polymers soluble in a solvent selected from the group comprising cellulose acetate butyrate, polyvinyl butyral and copolyamide, wherein each amount of the binder components is such that their sum equals 100% by volume of the binder.

Austenite steel not containing or with low contents of nickel and item for overhead or underground construction made out of this steel

FIELD: metallurgy. SUBSTANCE: steel contains carbon, silicon, manganese, chromium, nickel, molybdenum, tungsten, copper, nitrogen, iron and unavoidable impurities at following ratio of elements, wt %: carbon 0.11 - 0.7, silicon not more 2.0, manganese to less 15, chromium 21 - 26, nickel 0 - 2.0, molybdenum not more 1.5, tungsten not more 2.0, copper from over 0.3 to 4.0, nitrogen from over 0.7 to less 1.3, iron and unavoidable impurities - the rest. EFFECT: steel possesses high process properties at low cost of production. 3 cl, 1 dwg, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 394 114 (13) C2 (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ C22C C22C C22C C22C C22C C22C C22C 38/58 38/44 38/42 38/38 38/34 38/22 38/20 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2005112442/02, 26.05.2000 (24) Дата начала отсчета срока действия патента: 26.05.2000 (73) Патентообладатель(и): БАСФ Акциенгезелльшафт (DE) R U (30) Конвенционный приоритет: 26.05.1999 CH 0981/99 (72) Автор(ы): ШПАЙДЕЛЬ Маркус (CH) (43) Дата публикации заявки: 27.10.2006 2 3 9 4 1 1 4 (45) Опубликовано: 10.07.2010 Бюл. № 19 2 3 9 4 1 1 4 R U (62) Номер и дата подачи первоначальной заявки, из которой данная заявка выделена: 2001135791 26.05.2000 Адрес для переписки: 105064, Москва, а/я 88, В.П.Квашнину (54) АУСТЕНИТНАЯ СТАЛЬ, НЕ СОДЕРЖАЩАЯ НИКЕЛЬ ИЛИ ИМЕЮЩАЯ НИЗКОЕ СОДЕРЖАНИЕ НИКЕЛЯ, И ИЗДЕЛИЕ ДЛЯ НАДЗЕМНОГО ИЛИ ПОДЗЕМНОГО СТРОИТЕЛЬСТВА, ВЫПОЛНЕННОЕ ИЗ НЕЕ (57) Реферат: Изобретение относится к области металлургии, а именно к производству аустенитной стали, используемой для изготовления изделий для надземного или подземного строительства. Сталь содержит углерод, кремний, марганец, хром, никель, молибден, вольфрам, медь, азот, железо и неизбежные примеси, при следующем соотношении компонентов, вес.%: углерод 0,11- 0,7, кремний не более 2,0, марганец до менее 15, хром 21-26, никель 0-2,0, ...

High-strength turbocharger nozzle ring blade and preparation method thereof

本发明一种高强度涡轮增压器喷嘴环叶片及其制备方法，属于车用涡轮增压器喷嘴环叶片生产技术领域。本发明采用添加0.8‑1.5wt％增强剂的HK30不锈钢气雾化粉末和粘结剂；按质量比80‑95％：20‑5％的比例，称量好HK30、增强剂粉末与粘结剂进行混炼，混炼后，冷却破碎后制成喂料；将制好的喂料加入注射成形机内，注射温度140‑175℃，注射压力60‑120MPa，模温30‑60℃，注射成形出坯件；坯件经溶剂脱脂和加热脱脂相结合的处理后，经预烧结和烧结工序处理，得到产品。本发明的产品的尺寸精度和表面精度高、产品抗热疲劳性能高、产品高温强度下使用寿命长。

METHOD OF MANUFACTURE OF PARTS FROM INORGANIC POWDERY MATERIAL (Versions) AND BINDING COMPOSITION FOR METHOD EMBODIMENT

FIELD: metallurgy, particularly manufacture of parts from metal powders. SUBSTANCE: method includes preparation of initial materials by mixing of binding composition with powdery inorganic materials, part molding by casting or by extrusion. Binding composition consists of primary and secondary binding substances. In primary binding composition, vapor pressure amounts up to, at least, 133.3 Pa at temperature of decomposition of the secondary binding material. Preparation of initial material is performed at temperature exceeding melting temperature of binding composition. EFFECT: reduced formation of pores and cracks with no use of solvents and toxic materials. 29 cl, 4 ex Э069сС ПЧ] с» РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) КИ 2 169 056 5) МК’ В 22Е 3/20, 3/22 (13) С2 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96120778/02, 27.09.1996 (24) Дата начала действия патента: 27.09.1996 (30) Приоритет: 29.09.1995 0$ 004.498 (43) Дата публикации заявки: 20.11.1998 (46) Дата публикации: 20.06.2001 (56) Ссылки: УР 07097271 А, 11.04.1995. $Ч 1664462 АЛ, 23.07.1991. $Ц 1685602 А1Л, 23.10.1991. $Ц 114618, 25.09.1957. 9$ 5145900, 08.09.1992. (98) Адрес для переписки: 101000, Москва, М. Златоустинский пер., Д.10, кв.15, "ЕВРОМАРКПАТ", И.А.Веселицкой (71) Заявитель: Карпентер Технолоджи Корпорейшн (1$) (72) Изобретатель: БОГЭН Леонард Эдвард, мл. (95), АЙНХОРН Ричард Энтони (ЦЗ) (73) Патентообладатель: Карпентер Технолоджи Корпорейшн (15$) (74) Патентный поверенный: Веселицкая Ирина Александровна (54) СПОСОБ ИЗГОТОВЛЕНИЯ ДЕТАЛЕЙ ИЗ НЕОРГАНИЧЕСКОГО ПОРОШКООБРАЗНОГО МАТЕРИАЛА (ВАРИАНТЫ) И СВЯЗУЮЩАЯ КОМПОЗИЦИЯ ДЛЯ ОСУЩЕСТВЛЕНИЯ СПОСОБА (57) Изобретение относится к металлургии, а именно к производству изделий из металлических порошков. Способ включает приготовление исходного материала путем смешения связующей композиции с порошкообразными неорганическими материалами, формование детали литьем или экструзией, при этом связующая композиция ...

A kind of 3D printing preparation technology of through-hole structure metal polyporous material

本发明公开了一种通孔结构金属多孔材料的3D打印制备工艺，包括以下步骤：S1、绘制出实际结构和尺寸多孔材料的3D模型；S2、3D打印多孔材料坯件；S3、多孔材料坯件热固化；S4、多孔材料坯件去粉形成内部通道及孔隙；S5、经脱脂和烧结制得所需的多孔材料制件。本发明提出的一种通孔结构金属多孔材料的3D打印制备工艺，其避免了采用激光装置，具有制作工艺简单，制作成本低的特点，基于低成本的3D打印技术，能够制作出具有复杂内部孔道的结构，本发明可广泛应用于蜂窝状金属多孔材料和开孔泡沫金属材料两种类型多孔材料的制备，应用前景广阔。

UV (ultraviolet) adhesive for reducing curing shrinkage and preparation method thereof

本发明公开一种降低固化收缩率的UV粘结剂及其制备方法，所述UV粘结剂按重量百分比包括：40％‑57％的预聚物、16％‑38％的稀释剂、4％‑19％的膨胀单体、0.8％‑7％的光引发剂和5％‑20％的纳米级粉末，纳米级粉末的种类与三维打印时粉床粉末的种类相同。按重量百分比将预聚物、稀释剂、膨胀单体和光引发剂加入至同一容器内，搅拌至形成均一的混合液A；根据粉床粉末的种类选取纳米级粉末的种类，按重量百分比将纳米级粉末加入混合液A中，混合均匀并除去气泡，完成UV粘结剂的制备。采用和粉床粉末相同的纳米级粉末，可以有效提升产品的力学性能并降低收缩率，特别是在需要进行烧结等后处理时，不会引入其它杂质，而且其致密度和强度等力学性能显著提高。

Binder for injection molding

분말 사출성형법에 의해 금속이나 초형분말의 소결체 제조시 사용되는 결합제로서 폴리에틸렌 20-40중량%, 에틸렌-비스-스테아라미드 5-80중량% 및 올리아마이드를 포함한다. As a binder used in the production of sintered compacts of metals or ultrafine powders by powder injection molding, 20 to 40% by weight polyethylene, 5-80% by weight ethylene-bis-stearamid and oliamide are included. 이 결합제는 열분해에 의한 결합제 제거시 우수한 형상유지성을 나타낸다. This binder exhibits good shape retention upon removal of the binder by pyrolysis.

Surface modification method capable of improving surface lubricating property of anisotropic permanent magnet powder particles

本发明开发了一种提高各向异性永磁粉末颗粒表面润滑性的表面改性技术，属于磁性材料制备技术领域。采用化学气相沉积聚合(CVDP)的方法，在预处理后的各向异性永磁粉末表面沉积聚合派瑞林，派瑞林薄膜厚度为1‑50μm。经派瑞林改性处理后的各向异性永磁粉末表面的润滑性大大提高，其室温取向成型磁体的密度、取向度和磁性能超过了未改性永磁粉末温压成型磁体的密度、取向度和磁性能，因而，在采用模压成型制备各向异性粘结永磁时，通过对永磁粉末颗粒进行派瑞林表面改性处理，可以用室温取向成型工艺取代温压取向成型。

Sintered modeling material, sintered modeling method, sintered model and sintered modeling apparatus

A kind of tungsten alloy feeding and preparation method thereof for powder injection forming

本发明公开了一种用于粉末注射成形的钨合金喂料及其制备方法，按照重量百分比，所述喂料由包括90wt.％～97wt.％的钨合金粉末和3wt.％～10wt.％的粘结剂颗粒的原料制成，所制成喂料的相对真密度为99.0％～99.5％。本发明工艺可连续生产均匀性好、稳定性好、性能优良的喂料，有效解决了传统密炼工艺存在的稳定性差和无法连续生产的问题。

A kind of method that low pressure injection molding prepares metal honeycomb material

本发明涉及一种低压注射成型制备金属蜂窝材料的方法。所述工艺步骤为：金属粉末与粘结剂混炼，低压注射成形，溶液脱蜡，在真空或保护气氛中热脱粘和烧结，即可制成整体型金属蜂窝材料。本发明技术与现有技术相比，原料粉末粒度范围要求宽、注射压力低、产品单重大、工艺流程简单、生产效率高、成本低、易大批量生产。

Downhole drill bit containing fused deposition 3D printing and forming diamond-impregnated layer and preparation method thereof

本发明公开了一种含熔融沉积3D打印成型孕镶金刚石层的潜孔钻头及其制备方法，所述潜孔钻头包括钻头库体、安装于钻头库体工作面凹槽内的球齿、孕镶金刚石层；所述孕镶金刚石层设置于钻头库体工作面的表面；所述孕镶金刚石层由FeCoCu合金基体以及分散于FeCoCu合金基体中的金刚石组成，所述孕镶金刚石层中，金刚石的体积分数为5～35％。本发明中孕镶金刚石层的制造采用先进的熔融沉积3D打印成型‑粉末冶金烧结技术，使钻头库体的耐磨性能得到极大提高，保证钻头工作过程中库体的磨损与硬质合金球齿的磨损实现同步，从而有利于延长钻头使用寿命，提高钻进效率。

Three-dimensional (3D) printing method

3차원(3D) 인쇄 방법 예에서는, 금속 구조 물질을 도포한다. 결합제 유체를 금속 구조 물질의 적어도 일부 상에 선택적으로 도포한다. 결합제 유체는 액체 비히클 및 액체 비히클에 분산된 중합체 입자를 포함한다. 금속 구조 물질의 도포 및 결합제 유체의 선택적인 도포를 반복하여 패턴화된 미가공 물체를 형성시킨다. 패턴화된 미가공 물체를 대략 중합체 입자의 융점까지 가열하여, 결합제 유체를 활성화시키고 경화된 미가공 물체를 형성시킨다. 경화된 미가공 물체를 중합체 입자의 열분해 온도까지 가열하여, 적어도 실질적으로 중합체를 함유하지 않는 중간 물체를 형성시킨다. 적어도 실질적으로 중합체를 함유하지 않는 중간 물체를 소결 온도까지 가열하여 금속 물체를 형성시킨다. In the example of a three-dimensional (3D) printing method, a metal structural material is applied. A binder fluid is selectively applied over at least a portion of the metallic structural material. The binder fluid includes a liquid vehicle and polymer particles dispersed in the liquid vehicle. The application of the metallic structural material and the selective application of the binder fluid are repeated to form a patterned green object. The patterned green object is heated to approximately the melting point of the polymer particles, activating the binder fluid and forming a cured green object. The cured green object is heated to the thermal decomposition temperature of the polymer particles to form an intermediate object that is at least substantially free of polymer. The intermediate object, at least substantially free of polymer, is heated to a sintering temperature to form a metallic object.

Lubricant for metal powder metallurgy, method for producing the same, metal powder composition, and method for producing metal powder metallurgy product

本発明の金属粉末冶金用潤滑剤は、下記の一般式（１）で表されるアミド系化合物及び下記の一般式（２）で表されるアミド系化合物からなる群から選択される１種以上のアミド系化合物を含有する粒状体からなり、粒径１９８μｍより大きな粒子が１質量％未満であり、且つ粒径１０μｍ以下の粒子が１０質量％以下である。本発明の金属粉末冶金用潤滑剤は、潤滑性を阻害せずに低密度で低ラトラ値を実現し、割れ、欠け及び密度バランス不良のないグリーン体及び焼結体を提供することができる。【化１】（式中、Ｒ1及びＲ2はそれぞれ独立して炭素数１３〜２７の脂肪族炭化水素基を表し、ｍは１〜６の数を表す。）【化２】（式中、Ｒ3は炭素数１３〜２７の脂肪族炭化水素基を表す。） The lubricant for metal powder metallurgy according to the present invention is one or more selected from the group consisting of an amide compound represented by the following general formula (1) and an amide compound represented by the following general formula (2). The particles containing the amide compound are less than 1% by mass, and the particles having a particle size of 10 μm or less are 10% by mass or less. The lubricant for metal powder metallurgy according to the present invention can provide a green body and a sintered body that achieves a low rattra value at a low density without impairing lubricity, and that are free from cracks, chips, and poor density balance. (In the formula, R 1 and R 2 each independently represents an aliphatic hydrocarbon group having 13 to 27 carbon atoms, and m represents a number of 1 to 6.) Represents an aliphatic hydrocarbon group having 13 to 27 carbon atoms.)

Three-dimensional (3D) printing

在三维(3D)打印方法实例中，施加金属构建材料。在金属构建材料的至少一部分上选择性施加粘合剂流体。该粘合剂流体包含液体载体和分散在液体载体中的聚合物粒子。施加金属构建材料和选择性施加粘合剂流体重复进行以生成图案化绿坯部件。将图案化绿坯部件加热至聚合物粒子的熔点附近以活化粘合剂流体并生成固化绿坯部件。将固化绿坯部件加热至聚合物粒子的热分解温度以生成至少基本不含聚合物的灰坯部件。将至少基本不含聚合物的灰坯部件加热至烧结温度以形成金属部件。

Filler, and sealing structure and production method therefor

금형의 냉각공 등에 삽입하는 부시의 열전도성을 향상시킬 수 있는 충전제 및 실링 구조와 그 제법을 제공한다. 액상의 에폭시 수지와 분말상의 금속 분말과 경화제로 이루어지는 충전제(S)를 냉각공(82) 내에 충전한다. 이 충전제는 상온 하에서 액화 상태이기 때문에 충전 작업시의 취급이 용이하다. 충전제는 냉각공(82) 및 소정 위치에 보유된 부시(12)의 간극에서 경화한다. 이 간극 전면을 덮도록 경화한 충전제(금속 분말 등)는 부시(12)를 냉각공(82)에 접촉시키지 않고 금속 분말로 개재시키고 있으므로 열 전달 효율이 향상된다. 예를 들어 금형을 가열 처리하면 경화되어 있는 에폭시 수지는 탄화한다. 따라서, 열전도가 높은 금속 분말(구리 등의 분말)이 상기 간극 전면을 덮도록 남으므로 열 전달 효율이 더욱 향상된다. A filler and a sealing structure capable of improving thermal conductivity of a bush inserted into a cooling hole of a mold, and a method of manufacturing the same. A filler (S) composed of a liquid epoxy resin, a powdery metal powder, and a curing agent is filled in the cooling hole (82). Since the filler is in a liquefied state at room temperature, it is easy to handle during filling operation. The filler cures in the clearance between the cooling holes 82 and the bushes 12 held in place. The filler (metal powder or the like) hardened to cover the entire front surface of the gap is interposed between the bush 12 and the cooling hole 82 without being in contact with the cooling hole 82, so that heat transfer efficiency is improved. For example, when the mold is heated, the cured epoxy resin is carbonized. Therefore, the metal powder (powder of copper or the like) having high thermal conductivity is left to cover the gap front surface, so that the heat transfer efficiency is further improved.

A kind of for metal injection molded feeding and preparation method thereof

一种用于金属注射成型的喂料，由金属粉末和粘结剂混合制成，属于金属成型领域，其中，粘结剂为9.2～10.5wt％，金属粉末为89.5～90.8wt％，金属粉末激光粒度分布D90为18‑30μm；粘结剂包括聚甲醛，高分子聚合物，增塑剂，表面活性剂，相容剂和润滑剂。一种上述喂料的制备方法，将聚甲醛、高分子聚合物、相容剂、增塑剂、表面活性剂和润滑剂于150～200℃混合均匀后得到粘结剂；再将粘结剂和金属粉末混合制得喂料。该喂料流动性好，粘接剂容易脱除，得到的产品尺寸精度高、杂质含量少。该喂料的制备方法操作简便，能高效地得到均匀的喂料并且不对喂料中各种成分造成破坏，很好的保障了喂料的使用效果。

A kind of digital control plane milling and boring machine drill bit

本发明涉及一种数控龙门镗铣床用钻头，该换热材料由如下重量份原料制成：碳化钨粉末14‑20份、二氧化铅粉末1‑3份、钴铬合金粉末10‑15份、碳化硅粉末4‑8份、氧化锌粉末3‑7份、氧化镁粉末3‑7份、硫化胶1‑3份、苯胺2‑4份、氧化镧粉末1‑4份、铬粉末2‑4份、酚醛树脂0.1‑1份、石墨粉1‑3份、水适量；本发明所提供的技术方案能够有效弥补原料稀缺，价格昂贵、有毒害、耐高温性能差、耐老化性能差、强度和硬度低的缺陷。

Copper paste firing method

【課題】電気伝導率を低減した銅配線を形成するために、銅粒子の焼結性を向上させる銅ペーストの焼成方法を提供すること。【解決手段】基板上に銅ペーストを塗布する塗布工程と、前記塗布工程の後、体積比で５００ｐｐｍ以上、２０００ｐｐｍ以下の酸化性ガスを含有する窒素ガス雰囲気において前記基板を加熱し、前記銅ペースト中の銅粒子を酸化焼結する第一の加熱工程と、前記第一の加熱工程の後、体積比で１％以上の還元性ガスを含有する窒素ガス雰囲気において前記基板を加熱し、前記酸化焼結された銅酸化物を還元する第二の加熱工程と、を含む銅ペーストの焼成方法。【選択図】なし To provide a copper paste firing method that improves the sinterability of copper particles in order to form a copper wiring with reduced electrical conductivity. An application step of applying a copper paste onto a substrate; and after the application step, the substrate is heated in a nitrogen gas atmosphere containing an oxidizing gas having a volume ratio of 500 ppm to 2000 ppm, and the copper paste A first heating step of oxidizing and sintering copper particles therein, and after the first heating step, the substrate is heated in a nitrogen gas atmosphere containing a reducing gas of 1% or more by volume, and the oxidation And a second heating step for reducing the sintered copper oxide. [Selection figure] None

Iron-based mixed powder for powder metallurgy

철기 분말 중에, 평균 입자경이 0.5㎛ 이상의 산화물 입자를, 0.01∼5.0질량％의 범위에서 함유시킴으로써, 철기 혼합 분말의 유동성을 높이고, 압분체의 성형 밀도를 향상시킴과 동시에, 압분 성형 후의 발출력이 대폭으로 저감하여, 그로 인해 제품 품질의 향상과 제조 비용의 저감을 달성한다. By containing oxide particles having an average particle diameter of 0.5 µm or more in the range of 0.01 to 5.0% by mass in the iron-based powder, the fluidity of the iron-based mixed powder is increased, the molding density of the green compact is increased, and the output power after the green compacting is increased. A significant reduction is thereby achieved to improve product quality and reduce manufacturing costs.

A kind of production technology and its mobile phone Kato of mobile phone Kato

本发明公开了一种手机卡托的生产工艺及其手机卡托，其包括如下步骤：S1：原料预备：原料按重量百分数计包括碳0～0.07％、铬15～17.5％、镍3～5％、铌0.15～0.45％、铜3～5％、锰0～1％、硅0～1％、粘结剂5～8％、余量为铁；S2：成型得到初胚件；S3：激光切水口处理得到粗成品件；S4：脱脂、烧结得到注射件；S5：之后进行超声波清洗、整形处理得到整形件，经PVD喷油、修边处理，得到成品。本发明通过注射成型可以一次性完成大批量的生产，在强度和硬度高，不易损伤，避免了修缺、披锋、压伤以及出现断裂、变形、鼓包等问题，良品产率大大提高，改善了手机卡花的耐磨程度，注射时粘结剂不会发生偏析，产品外观好，综合性能优异。

Method for Making Fe-Based Amorphous Metal Powder and Method for Making Soft Magnetic Core Using the Same

본 발명은 급속응고방법(RSP)으로 제조된 비정질 리본을 분쇄하여 얻어진 대전류에서 우수한 직류중첩특성을 가지며 코아 손실도 양호한 Fe계 비정질 금속 분말을 이용한 비정질 연자성 코어의 제조방법에 관한 것이다. 본 발명에 따른 비정질 연자성 코아의 제조방법은 Fe계 비결정질 합금을 사용하여 급속응고방법으로 제조된 비정질 금속 리본을 예비 열처리하는 단계; 상기 비정질 금속 리본을 분쇄하여 비정질 금속 분말을 얻는 단계; 상기 비정질 금속 분말을 분급한 후 최적의 조성 균일성을 갖는 분말 입도 분포로 혼합하는 단계; 상기 혼합된 비정질 금속 분말에 바인더를 혼합한 후, 코아를 성형하는 단계; 및 상기 성형된 코아를 소둔 처리 한 후 코아를 절연수지로 코팅하는 단계를 포함하는 것을 특징으로 한다.

Iron-based powder compositions containing novel binder lubricants

본 발명은 철 기재 분말을 이염기성 유기산, 및 고상 폴리에테르, 액상 폴리에테르 및 아크릴 수지와 같은 1종 이상의 추가 성분을 포함한 개선된 결합제/윤활제와 혼합시킴으로써 제조한 철 기재 야금 분말 조성물을 제공한다. 이들 신규 결합제/윤활제는 분말 조성물에 대해 1종 이상의 강화된 그린 특성을 제공하고, 금형 및 다이로부터 조성물을 제거하는데 필요한 돌출력을 감소시킨다. The present invention provides iron based metallurgical powder compositions prepared by mixing iron based powders with dibasic organic acids and improved binders / lubricants including one or more additional ingredients such as solid polyethers, liquid polyethers, and acrylic resins. These novel binders / lubricants provide one or more enhanced green properties for powder compositions and reduce the amount of protrusion required to remove the composition from molds and dies.

COMPOSITION OF IRON POWDER, INCLUDING LUBRICANT SUBSTANCE OF TYPE AMIDE, AND METHOD FOR PRODUCING IT

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) (13) 2003 133 290 A B 22 F 3/00 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2003133290/02, 17.04.2002 (71) Çà âèòåëü(è): ÕÅÃÀÍÅÑ ÀÁ (SE) (30) Ïðèîðèòåò: 17.04.2001 SE 0101344-0 (43) Äàòà ïóáëèêàöèè çà âêè: 10.05.2005 Áþë. ¹ 13 (74) Ïàòåíòíûé ïîâåðåííûé: Åãîðîâà Ãàëèíà Áîðèñîâíà (86) Çà âêà PCT: SE 02/00762 (17.04.2002) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé (54) ÊÎÌÏÎÇÈÖÈß ÆÅËÅÇÍÎÃÎ ÏÎÐÎØÊÀ, ÂÊËÞ×ÀÞÙÀß ÑÌÀÇÛÂÀÞÙÅÅ ÂÅÙÅÑÒÂÎ R U Ôîðìóëà èçîáðåòåíè 1. Ïîðîøêîâà êîìïîçèöè äë ïîëóãîð ÷åãî ïðåññîâàíè , ñîäåðæàùà ïîðîøîê íà îñíîâå æåëåçà è ïîðîøîê ñìàçûâàþùåãî âåùåñòâà, ïðè ýòîì óêàçàííîå ñìàçûâàþùåå âåùåñòâî ñîñòîèò ïî ñóùåñòâó èç àìèäà, ïðåäñòàâëåííîãî ñëåäóþùåé ôîðìóëîé: D-Cma—B-A-B-Cmb-D, â êîòîðîé D ïðåäñòàâë åò ñîáîé —Í, COR, CNHR, ãäå R îáîçíà÷àåò ëèíåéíóþ èëè ðàçâåòâëåííóþ àëèôàòè÷åñêóþ èëè àðîìàòè÷åñêóþ ãðóïïó, âêëþ÷àþùóþ â ñåá 2-21 àòîì Ñ; Ñ ïðåäñòàâë åò ñîáîé ãðóïïó —NH(CH)nCO-;  ïðåäñòàâë åò ñîáîé àìèíîãðóïïó èëè êàðáîíèë; À ïðåäñòàâë åò ñîáîé àëêèëåí, ñîäåðæàùèé 4-16 àòîìîâ Ñ è íåîá çàòåëüíî âêëþ÷àþùèé â ñåá äî 4 àòîìîâ Î; ma ïðåäñòàâë åò ñîáîé öåëîå ÷èñëî 1-10; mb ïðåäñòàâë åò ñîáîé öåëîå ÷èñëî 1-10; n ïðåäñòàâë åò ñîáîé öåëîå ÷èñëî 5-11. 2. Ïîðîøêîâà êîìïîçèöè ïî ï. 1, â êîòîðîé D ïðåäñòàâë åò ñîáîé COR, ãäå R îáîçíà÷àåò àëèôàòè÷åñêóþ ãðóïïó, âêëþ÷àþùóþ â ñåá 16-20 àòîìîâ Ñ; Ñ ïðåäñòàâë åò ñîáîé —NH(CH)nCO-, ãäå n ðàâíî 5 èëè 11;  ïðåäñòàâë åò ñîáîé àìèíîãðóïïó; À ïðåäñòàâë åò ñîáîé àëêèëåí, ñîäåðæàùèé 6-14 àòîìîâ Ñ è íåîá çàòåëüíî âêëþ÷àþùèé â ñåá äî 3 àòîìîâ Î; ma è mb, ñîîòâåòñòâåííî, ïðåäñòàâë þò ñîáîé öåëûå ÷èñëà 2-5, ïðè ýòîì ma è mb ìîãóò áûòü îäèíàêîâûìè èëè ðàçëè÷íûìè. 3. Ïîðîøêîâà êîìïîçèöè ïî ëþáîìó èç ïï 1 è 2, â êîòîðîé ñìàçûâàþùåå âåùåñòâî Ñòðàíèöà: 1 RU A 2 0 0 3 1 3 3 2 9 0 A ÒÈÏÀ ÀÌÈÄÀ, È ÑÏÎÑÎÁ ÅÅ ÏÎËÓ×ÅÍÈß 2 0 0 3 1 3 ...

Binder and preparation method thereof for metal 3DP technique

本发明提出了用于金属3DP工艺的粘结剂及制备方法。粘结剂的组分按质量份包括：基料80～99份、表面活性剂1～10份、催化剂1～5份、润滑剂1～5份；表面活性剂包括分散剂与润湿剂，分散剂为聚山梨酯、山梨醇酐单硬脂酸酯、聚乙烯醇和聚乙二酸中的至少一种，润湿剂为硬脂酸甲酯、硬脂酸正丁酯、硬脂酸辛酯和硬脂酸甘油酯中的至少一种，将基料、润湿剂、分散剂、润滑剂按照上述比例混合均匀后制得所述粘结剂。本发明通过优化粘结剂的配方，改善了粘结剂的润湿性、粘度和流动性，有效控制了材料的烧结收缩率，对成型的尺寸精度控制范围可以达到0.1％～3％，并且降低了脱脂的难度。

Turbocharger blade and preparation method thereof

本发明公开了一种涡轮增压器叶片，所述涡轮增压器叶片由按质量百分比的如下组分在氮保护气氛下烧制而成：23‑27％Cr、30‑40％Ni、0.83‑1.93％Al、0.63‑1.47％Mo、1.38‑1.48％Nb、0.08‑0.19％Ti、0‑1.75％Si、0.25‑0.35％C、0‑1.5％Mn，余量为Fe。本发明还公开了一种上述涡轮增压器叶片的制备方法。本发明所得的涡轮增压器叶片最终烧结致密度在98％以上，其常温抗拉强度为850‑950MPa，高温(950℃)下的抗拉强度为400‑450Mpa，在950℃、170Mpa下蠕变断裂寿命达350‑450h，其延伸率大于30％。

Austenitic steel not containing nickel, or having a low nickel content and product for aboveground or underground construction made from it

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2005 112 442 (13) A (51) ÌÏÊ C22C C22C C22C C22C C22C 38/58 38/44 38/38 38/34 38/22 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005112442/02, 22.04.2005 (71) Çà âèòåëü(è): ÁÀÑÔ Àêöèåíãåçåëëüøàôò (DE) (30) Êîíâåíöèîííûé ïðèîðèòåò: 26.05.1999 CH 0981/99 (72) Àâòîð(û): ØÏÀÉÄÅËÜ Ìàðêóñ (CH) (43) Äàòà ïóáëèêàöèè çà âêè: 27.10.2006 Áþë. ¹ 30 (57) Ôîðìóëà èçîáðåòåíè 1. Àóñòåíèòíà ñòàëü, íå ñîäåðæàùà íèêåëü, èëè èìåþùà íèçêîå ñîäåðæàíèå íèêåë , ñîñòàâà, âåñ.%: óãëåðîä 0,11-0,7 êðåìíèé íå áîëåå 2 ìàðãàíåö íå áîëåå 17 õðîì 21-26 íèêåëü 0-2 ìîëèáäåí íå áîëåå 1,5 âîëüôðàì íå áîëåå 2 ìåäü íå áîëåå 4, â ÷àñòíîñòè íå áîëåå 2,5 àçîò 0,7-1,7 æåëåçî è íåèçáåæíûå ïðèìåñè R U 2. Èçäåëèå äë íàäçåìíîãî èëè ïîäçåìíîãî ñòðîèòåëüñòâà, âûïîëíåííîå èç àóñòåíèòíîé ñòàëè ïî ï.1. Ñòðàíèöà: 1 RU Îñòàëüíîå A 2 0 0 5 1 1 2 4 4 2 A (54) ÀÓÑÒÅÍÈÒÍÀß ÑÒÀËÜ, ÍÅ ÑÎÄÅÐÆÀÙÀß ÍÈÊÅËÜ, ÈËÈ ÈÌÅÞÙÀß ÍÈÇÊÎÅ ÑÎÄÅÐÆÀÍÈÅ ÍÈÊÅËß È ÈÇÄÅËÈÅ ÄËß ÍÀÄÇÅÌÍÎÃÎ ÈËÈ ÏÎÄÇÅÌÍÎÃÎ ÑÒÐÎÈÒÅËÜÑÒÂÀ, ÂÛÏÎËÍÅÍÍÎÅ ÈÇ ÍÅÅ 2 0 0 5 1 1 2 4 4 2 Àäðåñ äë ïåðåïèñêè: 105064, Ìîñêâà, óë. Êàçàêîâà, 16, ÍÈÈÐ Êàíöåë ðè "Ïàòåíòíûå ïîâåðåííûå Êâàøíèí, Ñàïåëüíèêîâ è ïàðòíåðû", ïàò.ïîâ. Â.Ï.Êâàøíèíó R U (74) Ïàòåíòíûé ïîâåðåííûé: Êâàøíèí Âàëåðèé Ïàâëîâè÷ (62) Íîìåð è äàòà ïîäà÷è ïåðâîíà÷àëüíîé çà âêè, èç êîòîðîé äàííà çà âêà âûäåëåíà: 2001135791 25.12.2001

The manufacture method of the sealing structure of filler and filler

本发明提供一种能够提高插入到铸模的冷却孔等的衬套的导热性的填充剂及密封结构及其制造方法。将由液态的环氧树脂、粉末状的金属粉末和固化剂构成的填充剂(S)填充到冷却孔(82)内。该填充剂在常温下为液化状态，因此填充作业时容易处理。填充剂在冷却孔(82)和被保持于规定位置的衬套(12)的间隙固化。由于以覆盖该全部间隙的方式固化的填充剂(金属粉末等)使衬套(12)不与冷却孔(82)接触，且使它们之间夹设有金属粉末等，因此热传递效率得以提高。例如当对铸模进行加热处理时，固化的环氧树脂碳化。因此，热传递性强的金属粉末(铜等的粉末)以覆盖上述全部间隙的方式残留，热传递效率因而得以进一步提高。

Three-dimensional forming wire material and FDM three-dimensional forming method

本发明提供一种三维成型丝料和FDM三维成型方法，三维成型丝料由以下组分的原料制成：无机粉末、粘结剂和助剂，无机粉末的含量为90wt％以上；其中粘结剂由POM和TPE组成，POM的熔点在180℃至190℃之间，TPE的邵氏硬度在0至10度之间；助剂由硅酮粉润滑剂和氧化锌热稳定剂组成。本发明的三维成型丝料柔韧性好，易于绕线，且打印不容易堵头，打印出的三维物体不易分层。

Injection moldable metal powder composition and injection molding and sintering processes using such a composition

Composition for injection molding of metal powder and injection molding and sintering method using the composition

【要約】 【課題】 脱脂変形が生じにくい金属粉末の射出成形用 組成物を得ようとする。 【解決手段】 金属粉末と、有機バインダとからなる射 出成形用組成物であって、前記有機バインダを構成する 成分が、 ａ．ビカット軟化点Ａ≧１５０〔℃〕なるポリオキシメ チレン、 ｂ．ビカット軟化点Ｂ≧１３０〔℃〕なるポリプロピレ ン、 ｃ．前記ビカット軟化点温度Ａ〔℃〕における粘度が２ ００ｍＰａ・ｓ以下である有機化合物、及び ｄ．ビカット軟化点が前記Ｂ〔℃〕以下である熱可塑性 樹脂から成るものである。 An object of the present invention is to obtain a metal powder injection molding composition that is less likely to cause degreasing deformation. SOLUTION: The composition for injection molding comprising a metal powder and an organic binder, wherein the components constituting the organic binder are a. A polyoxymethylene having a Vicat softening point A ≧ 150 [° C.], b. Polypropylene having a Vicat softening point B ≧ 130 [° C.], c. When the viscosity at the Vicat softening point temperature A [° C.] is 2 An organic compound of not more than 00 mPa · s, and d. It is made of a thermoplastic resin having a Vicat softening point of not more than B [° C.].

Metal powder injection moldable composition, and injection molding and sintering method using such composition

A metal powder injection moldable composition which hardly causes debinding deformation is obtained. This composition consists of a metal powder and an organic binder. The components which constitute the organic binder are: a. polyoxymethylene having a Vicat softening temperature A≧150° C., b. polypropylene having a Vicat softening temperature B≧130° C., c. an organic compound whose viscosity at said Vicat softening temperature A (° C.) is not more than 200 mPa·s, and d. a thermoplastic resin whose Vicat softening temperature is not higher than said B (° C.).

Molding compound and method for producing a molding compound

The invention relates to a molding compound for producing molded parts by means of a powder injection molding process, comprising at least one inorganic powder and a binder system comprising at least one optionally polar-modified polyolefin. The binder system further comprises at least one wax. The invention further relates to a method for producing a molding compound for a powder injection molding process, wherein, in a first step, a mixture of at least one inorganic powder, at least one polyolefin, and at least one wax is melted and homogenized, wherein at least one polyolefin and/or wax is polar-modified and, in a further step, the melt is solidified and formed.

Metal powder injection molding composition

Mixture for the production of sintered moldings comprising carnauba wax

Zur Lösung der Aufgabe, eine Mischung zur Herstellung sinterbarer Formteile zur Verfügung zu stellen, mit welcher hohe Pressdichten in einem Grünkörper erhältlich sind, wird eine Mischung vorgeschlagen, umfassend mindestens ein metallisches Material und/oder Kunststoffmaterial und mindestens ein Presshilfsmittel, wobei das Presshilfsmittel etwa 0,5 Gew.-% bis etwa 60 Gew.-%, bezogen auf die Gesamtmenge des Presshilfsmittels, mindestens eines Amides, und etwa 40 Gew.-% bis etwa 99,5 Gew.-%, bezogen auf die Gesamtmenge des Presshilfsmittels, mindestens eines Carnaubawachses umfasst. To solve the problem of providing a mixture for producing sinterable moldings, with which high compacting densities are obtainable in a green body, a mixture is proposed comprising at least one metallic material and / or plastic material and at least one pressing aid, wherein the pressing aid is about 0 From 5% to about 60% by weight, based on the total amount of the pressing aid, of at least one amide, and from about 40% to about 99.5% by weight, based on the total amount of the pressing aid, of at least of a carnauba wax.

Molded body forming composition, degreased body and sintered body

Improved lubricant system for use in powder metallurgy

본 발명은 개선된 윤활제 특성을 갖는 야금 분말 조성물에 관한 것이다. 본 발명의 이들 조성물은 90 중량% 이상의 철-기재 야금 분말; 제1족 또는 제2족 금속 스테아레이트; 약 80 내지 100 ℃의 용융 범위를 갖는 제1 왁스; 약 80 내지 90 ℃의 용융 범위를 갖는 제2 왁스; 아연 포스페이트; 붕산; 아세트산; 인산; 및 폴리비닐피롤리돈을 포함한다. 이 조성물의 압축 방법 및 이들 방법을 사용하여 제조된 압축 제품이 또한 기술된다. The present invention relates to a metallurgical powder composition having improved lubricant properties. These compositions of the present invention comprise at least 90% by weight of iron-based metallurgical powder; Group 1 or Group 2 metal stearate; A first wax having a melting range of about 80 to 100° C.; A second wax having a melting range of about 80 to 90° C.; Zinc phosphate; Boric acid; Acetic acid; Phosphoric acid; And polyvinylpyrrolidone. Methods of compressing this composition and compressed products made using these methods are also described.

Composition for sintered compact and sintered compact

本発明の目的は、ポリアセタール樹脂の具備する剛性に基づくグリーン成形体の形状保持性を損なわず、高流動性で、脱脂時にひび割れや膨れを起こさない焼結成形体用組成物を提供することにある。本発明の焼結成形体用組成物は、焼結可能な無機粉末と有機バインダーとを含み、前記有機バインダーは、少なくともポリアセタール樹脂とポリオレフィン樹脂とを含み、前記ポリアセタール樹脂のメルトフローインデックスが７０～２００ｇ／１０分である、ことを特徴としている。

Method of manufacturing powder injection molded part

This manufacturing method of a powder injection molded part includes the steps of using a binder composition containing at least 2 kinds of thermoplastic binder components having an evaporation temperature higher than the injection molding temperature and a different evaporation initiating temperature from each other, elevating the temperature of a molded body above the evaporation initiating temperature of the binder component having the lowest evaporation initiating temperature rapidly, removing the binder component having the lowest evaporation initiating temperature from the molded body by holding this temperature, and thereafter, removing all binder components by elevating up to a temperature not lower than the evaporation initiating temperature of the binder component having the highest evaporation initiating temperature. By this method, the form unstability of final parts, which is a problem of the prior art, is resolved, dimensional accuracy is satisfied, and it is possible to shorten debinding times.

THERMOPLASTIC MEASURES FOR THE PRODUCTION OF METALLIC MOLDED BODIES

THERMOPLASTIC MEASURES FOR THE PRODUCTION OF METALLIC MOLDED BODIES

Process for the production of sintered molded parts and compositions suitable therefor

Process for the production of granules and molded parts from hard metal or cermet materials

Composition for injection molding of metal powder, injection molding and sintering method using the composition

(57)【要約】 【課題】 脱脂変形が生じにくい金属粉末の射出成形用 組成物を得ようとする。 【解決手段】 金属粉末と、有機バインダとからなる射 出成形用組成物であって、前記有機バインダを構成する 成分が、 ａ．ビカット軟化点Ａ≧１５０〔℃〕なるポリオキシメ チレン、 ｂ．ビカット軟化点Ｂ≧１３０〔℃〕なるポリプロピレ ン、 ｃ．前記ビカット軟化点温度Ａ〔℃〕における粘度が２ ００ｍＰａ・ｓ以下である有機化合物、及び ｄ．ビカット軟化点が前記Ｂ〔℃〕以下である熱可塑性 樹脂から成るものである。

Process for preparing granulate and articles from hard metal or cermet material

Preparation of a granulate by mixing at least one hard material phase (A) with a metal powder (B) and binder (C) and then granulating the mixture - carried out without any pre-mixing of (A) and (B) prior to mixing with (C), which has a viscosity of 20-200 (30-100) cm<3>/10 minutes at 195 degrees C and 2.16 kg load, according to DIN 53735. A process for making moulded articles by injection-moulding one of these granulates is also claimed, in which the granulate is shaped in a mould, binder is removed and then the material is sintered.

Binder mixture for producing moulded parts using injection methods

Porous, sintered parts prepn., used e.g. as filters, catalyst carriers - comprises mixing metal or ceramic powder with organic binder or plasticiser contg. polymer of vinyl] aromatic cpd.

Prepn. of porous sintered parts from metal or ceramic powders uses organic binders or plasticisers contg. a (mixed) polymer of a vinyl aromatic cpd. which does not blend with the other components. The mixt. is shaped into parts at raised temp., and the binder or plasticiser, and the additive, are removed at high temp. The part is then sintered. Pref. the part is made of metal (alloy). USE/ADVANTAGE - For making flame protectors for welding, for filters, catalyst carriers, in gas nozzles for metal working, etc. The products can have complicated shapes, are stable, with variable, even porosity from few different powder types, and are economically produced.

Method of removing binder from powder moldings

Method of removing binder from powder moldings

Methods of removing binder from powder moldings

A method of mixing a powder material and a binder in a predetermined ratio and kneading the mixture so that substantially whole surface of the powder particles are covered by the binder, molding the kneaded mixture into the shapes of desired products, then removing the binder from the moldings without causing expansion or cracks in the moldings before sintering. The binder comprises one or more organic binding substances soluble to an alcohol or to an mixed solvent of an alcohol and benzene or one or more ketones and one or more organic binding substances insoluble to the alcohol or to the mixed solvent. The moldings are put in contact with the alcohol or the mixed solvent to extract the organic binding substances soluble to the alcohol or to the mixed solvent from the moldings. The organic binding substances insoluble to the alcohol or to the mixed solvent are then removed by heat-decomposition. The dissolution of the organic binding substances soluble to the alcohol or to the mixed solvent can be controlled to an appropriate rate by the constituents of the mixed solvent and their ratio of mixture. By this method, it is made possible to remove the binder from the moldings made of powders with small particle sizes and large specific surface areas, which are difficult to remove the binder from without causing defects by the conventional methods, in short time without causing expansion or cracks in them.

Process for removing binders from powder moldings

MAX phase metal ceramic injection molding process

本发明公开了一种MAX相金属陶瓷注射成型工艺，包括如下步骤：混粉：粘结剂的加入量占混粉总体积的25~45%，粘结剂由下列重量份的原料制成：醋酸丁酸纤维素25~35份，聚乙二醇60~80份，硬脂酸1~3份，吩噻嗪0.4~0.6份，将捏合机加热到预定温度时，把粘结剂和MAX相粉末倒入捏合机中进行充分混合；通过造粒机制备成粒状喂料，利用注射成型机注射成型得到生坯；将生坯放入蒸馏水中，进行脱脂，去掉部分粘结剂；对生坯进行烘干，通过热脱脂的方法去掉余下的粘结剂；通过高温无压烧结法，固结金属陶瓷生坯，经冷却至室温后获得成品。本发明粘结剂是水溶性，流动性与分散性良好，与MAX相粉末均匀混合，坯体成型均匀，注射成型成本低，脱脂时间短、效率高、无污染等特点。

Process for fabricating parts for particulate material

Provided is a method of manufacturing sintered parts from particulate material, e.g., metal or ceramic parts. The method comprises mixing together predetermined amounts of powdered particulate material and a binder, which mixture is then molded under heat and pressure. The binder comprises at least a lower melting point component and a higher melting point component, with the lower melting point component remaining in a liquid state, becoming semi-solid or relatively soft upon cooling to ambient temperatures. Prior to sintering, the lower melting point component of the binder is selectively dissolved in a liquid solvent, and the higher melting point component is removed upon heating at temperatures below the sintering temperature. The result is a process which eliminates or prevents the formation of oxides, substantially reduces the time required for debinding and sintering, and essentially eliminates cracking in the finished part.

Process for manufacturing sintered bodies

Using an organic binder containing at least one water-soluble thermoplastic organic polymer and at least one water-insoluble thermoplastic organic polymer, the water-soluble thermoplastic organic polymer is extracted by debinding treatment in which a plastic molded part such as injection molded part and water are brought into contact with each other to prevent the occurrence of cracks in the molded part. Removal by extraction of the water-soluble thermoplastic polymer reduces the amount of the organic binder contained in the molded part sufficiently, thus preventing the softening and deformation of the molded part at the time of optionally heating and removing the remainder of the organic binder and/or sintering of the molded part and also preventing the occurrence of swelling and cracks by the effect of guide passage formed by the extraction of the organic polymer. Thermal debinding prior to sintering can be eliminated when polyethylene oxide is used as the water-soluble binder, which enables considerable reduction in the time required for debinding.