Mitsubishi Materials Corporation

Toshihiko Saiwai

Koji Hoshino

Ji-bin Yang

Koichi Kita

Jun Katoh

Jun Kato

Kotaro Watanabe

Fumio Sakamoto

Ji-Bin Yang

A material for porous metal body having a coil shape of a wire material wound in a helical shape, made of metal which having good thermal conductivity and can join by sintering; an average wire diameter Dw of the wire material is 0.05 mm to 2.00 mm inclusive, an average coil outer diameter Dc is 0.5 mm to 10.0 mm inclusive, a coil length L of 1 mm to 20 mm inclusive, and a winding number N is 1 to 10; and the plurality of materials for porous metal body are combined and sintered to form a metal porous body having a plurality of pores so that a pore ratio of the metal porous body is facilitated to be controlled.

Raw material for metal porous body and metal porous body

A heat sink including a metal-formed body having a base board part and two or more fin parts standing on a surface of the base board part and arranged in a parallel manner to each other, and one or more filled bodies consisting of a plurality of coiled metal-wire materials filled in one or more groove parts formed between the fin parts of the metal-formed body; the heat sink in which the coiled metal-wire materials have a first outer diameter at one end part and a second outer diameter at the other end part which is different from the first outer diameter; and the coiled metal-wire materials are metallurgically joined at partially to at least one of an inner surface of the groove parts of the metal-formed body and the other coiled metal-wire materials.

Heat sink with coiled metal-wire material

Thermal conduction metal material

A high quality porous aluminum body, which has excellent joint strength between the porous aluminum body and the aluminum bulk body, and a method of producing the porous aluminum complex, are provided. The porous aluminum complex () includes: a porous aluminum body () made of aluminum or aluminum alloy; and an aluminum bulk body () made of aluminum or aluminum alloy, the porous aluminum body () and the aluminum bulk body () being joined to each other. The junction () between the porous aluminum body () and the aluminum bulk body () includes a Ti&#x2014;Al compound. It is preferable that pillar-shaped protrusions () projecting toward the outside are formed on outer surfaces of one of or both of the porous aluminum body () and the aluminum bulk body (), and the pillar-shaped protrusions () include the junction ().

Porous aluminum complex and method of producing porous aluminum complex

A high-quality porous aluminum sintered compact, which can be produced efficiently at a low cost; has an excellent dimensional accuracy with a low shrinkage ratio during sintering; and has sufficient strength, and a method of producing the porous aluminum sintered compact are provided. The porous aluminum sintered compact is the porous aluminum sintered compact () that includes aluminum substrates () sintered to each other. The junction (), in which the aluminum substrates () are bonded to each other, includes the Ti&#x2014;Al compound () and the Mg oxide (). It is preferable that the pillar-shaped protrusions projecting toward the outside are formed on outer surfaces of the aluminum substrates (), and the pillar-shaped protrusions include the junction ().

Porous aluminum sintered compact and method of producing porous aluminum sintered compact

A porous aluminum heat exchanger including: a porous aluminum body in which aluminum substrates are sintered each other; and a bulk body, which is an aluminum bulk body made of aluminum or aluminum alloy is provided. Pillar-shaped protrusions projecting toward an outside are formed on outer surfaces of the aluminum substrates, and pores of the porous aluminum body are configured to form flow channels of a heat medium.

Porous aluminum heat exchange member

A porous aluminum sintered material is provided. The porous aluminum sintered material includes aluminum substrates sintered each other, wherein pillar-shaped protrusions projecting toward an outside are formed on outer surfaces of the aluminum substrates, the porous aluminum sintered material has junctions in which the aluminum substrates are bonded each other through the pillar-shaped protrusions, the junctions include a Ti&#x2014;Al compound, and a eutectic alloy phase including Al and Si is provided on surface layers of the junctions.

Porous aluminum sintered material and method of producing porous aluminum sintered material

A porous copper sintered material () includes: a plurality of copper fibers () sintered each other, wherein the copper fibers () are made of copper or copper alloy, a diameter R of the copper fibers () is in a range of 0.02 mm or more and 1.0 mm or less, and a ratio L/R of a length L of the copper fibers to the diameter R is in a range of 4 or more and 2500 or less (), redox layers () formed by redox treatment are provided on surfaces of copper fibers (), and concavities and convexities are formed by the redox layer (), and each of redox layers () formed on each of the copper fibers () is integrally bonded in a junction of the copper fibers ().

Porous copper sintered material, porous copper composite part, method of producing porous copper sintered material, and method of producing porous copper composite part

A porous copper body including a skeleton having a three-dimensional network structure is provided. An oxidation-reduction layer formed by an oxidation-reduction treatment is provided on a surface of the skeleton, and the oxygen concentration of the entirety of the skeleton is set to be 0.025 mass % or less.

Porous copper body, porous copper composite part, method for manufacturing porous copper body, and method for manufacturing porous copper composite part

A high-quality porous aluminum sintered compact, which can be produced efficiently at a low cost; has an excellent dimensional accuracy with a low shrinkage ratio during sintering; and has sufficient strength, and a method of producing the porous aluminum sintered compact are provided. The porous aluminum sintered compact is the porous aluminum sintered compact that includes aluminum substrates sintered each other. The junction, in which the aluminum substrates are bonded each other, includes the Ti&#x2014;Al compound and the eutectic element compound capable of eutectic reaction with Al. It is preferable that the pillar-shaped protrusions projecting toward the outside are formed on outer surfaces of the aluminum substrates, and the pillar-shaped protrusions include the junction.

A porous copper body including a skeleton having a three-dimensional network structure is provided. An oxidation-reduction layer formed by an oxidation-reduction treatment is provided on a surface of the skeleton, and the average crystal grain size of an entirety including the skeleton and the oxidation-reduction layer is 5% or more of the diameter of the skeleton.

This aluminum sintering material is an aluminum sintering material that is used for producing a porous aluminum sintered compact in which a plurality of aluminum base materials are sintered together, and the aluminum sintering material includes: the aluminum base materials; and a plurality of titanium powder particles fixed to outer surfaces of the aluminum base materials, wherein the titanium powder particles are composed of either one or both of metallic titanium powder particles and hydrogenated titanium powder particles.

Aluminum material for sintering, method for producing aluminum material for sintering, and method for producing porous aluminum sintered compact

A porous aluminum body having high porosity and a manufacturing method therefor are provided, wherein the porous aluminum body can be manufactured by continuous manufacturing steps. In the present invention, this porous aluminum body includes a plurality of aluminum fibers connected to each other. The aluminum fibers each have a plurality of columnar protrusions formed at intervals on an outer peripheral surface of the aluminum fibers, the columnar protrusions protruding outward from the outer peripheral surface. Adjacent aluminum fibers are integrated with the aluminum fibers and the columnar protrusions.

Porous aluminum body and manufacturing method therefor

This porous aluminum sintered compact is a porous aluminum sintered compact in which a plurality of aluminum base materials are sintered together, and a Ti&#x2014;Al-based compound is present in bonding portions at which the aluminum base materials are bonded together. It is preferable that a plurality of columnar protrusions protruding outwards are formed on an outer surface of the aluminum base material and the bonding portions are present at the columnar protrusions.

Growing community of inventors

Kitamoto, Japan

Toshihiko Saiwai