Nippon Steel Corporation

Fukujukogyo Co., Ltd.

Fukuju Industry Corporation Ltd

Fuji Jukogyo Kabushiki Kaisha

Nippon Steel Sumitomo Metal Corporation

Yutaka Takagi

Yasushi Hasegawa

Ryuichi Honma

Yasuhiro Shinohara

Ryuji Uemori

Shigemasa Takagi

The present invention provides a common rail formed by bonding a common rail body and a common rail holder which has a pressing surface and a convex bonding surface, by means of a heat pressure bonding process and a liquid phase diffusion bonding process, wherein the height H of the convex bonding surface satisfies 1 &#x3bc;m&#x2266;H&#x2266;50 &#x3bc;m, and the common rail holder includes a deformation introducing portion in which an area of a cross-section parallel to the pressing surface is smaller than the area of the pressing surface.

Common rail, common rail holder, and method of producing common rail

An automobile-use high pressure fuel injection accumulator-distributor comprised of a body of an automobile-use high pressure fuel injection accumulator-distributor to which pipe attachment holders for attaching fuel distribution pipes for distributing fuel to injection nozzles at an equal pressure are joined by liquid phase diffusion bonding etc., wherein each holder is comprised of a tube part at the pipe side and a partial cone-shaped skirt at the end of the rail body side, each holder skirt has a shape spreading in a partial cone shape toward the joint face end with an angle from the holder tube part side face of 10&#xb0; or more in a range of a length of 2 mm or more in the holder axial direction at the outer circumference of the end of the holder at the joint face side, the rail body has holder joint position determining guide grooves at its holder joint positions, each guide groove is comprised of a groove inner circumferential wall of a size enabling engagement with a holder joint inner circumference, a groove bottom forming a joint face with the holder, and a groove outer circumferential wall of a partial cone shape bulging out to the inner side parallel to the holder skirt from the groove bottom toward the holder side at a depth of 2 mm or more, and a metal ring is plastically deformed and press-fit into a clearance of 0.5 mm or more between each holder skirt and the groove outer circumferential wall and parallel to the joint face.

Automobile-use high pressure fuel injection accumulator-distributor and method of production of the same

A liquid phase diffusion bonding method for a metal machine part superior in the quality of the joint and the productivity enabling the bonding time to be shortened, achieving homogenization of the bonding structure and improving the tensile strength, fatigue strength, and joint quality and reliability. This liquid phase diffusion bonding method of a metal machine part is characterized interposing an amorphous alloy foil for liquid phase diffusion bonding at bevel faces of metal materials, performing primary bonding by melt bonding said amorphous alloy foil and said metal material by resistance welding to form a joint, then performing secondary bonding by liquid phase diffusion bonding by reheating said joint to at least the melting point of said amorphous alloy foil, then holding it there to complete the solidification process of said joint.

Liquid phase diffusion bonding method of metal machine part and such metal machine part

A precision machine part is made of a plurality of pieces with a transient liquid phase diffusion bonding alloy provided between the pieces to bond them together. The precision machine part has one or more conveyance passages formed in it, has a longitudinal axis and is configured to permit passage of liquid or gas through the conveyance passage from a pipe line or cylinder. The pieces of the precision machine part are adhered to each other by transient liquid phase bonding with a ribbon of an amorphous bonding alloy. The bonding alloy can contain 1 to 10 atomic % V or can contain 1 to 15 atomic % of B or P or a mixture of B and P and 1 to 10 atomic % V, the balance being Fe and unavoidable impurities, and can exhibit an amount of contraction in a bonding stress loading direction caused by plastic deformation in the bonding process of not more than 5%. The bonding alloy may be an amorphous Ni-based alloy.

Liquid phase diffusion welded metal-made precision machine component and production method thereof

A metal belt, comprising a metal band ( ) passed around a drive pulley ( ) and a driven pulley ( ) and a plurality of elements ( ) disposed laminatedly in the extending direction of the band; each element being formed of wire material and further comprising a body part ( ) in contact with the pulley, vertically installed parts ( ) erected from both sides of the body part, and a pair of hook parts ( ) which extended from the vertically installed parts and disposed opposedly to each other, wherein an opening part ( ) is formed with the body part and both hook parts and, because the band ( ) is inserted into the opening part ( ) of each element so as to prevent the element from falling down from the band, a falling prevention body ( ) is disposed in the opening part overlappingly with the band ( ).

Growing community of inventors

Hashima, Japan

Yutaka Takagi