Kanto Yakin Kogyo Co., Ltd.

Taiyo Nippon Sanso Corporation

Furukawa-Sky Aluminum Corporation

Kanto Yakin Kogyo K.k.

Kanto Yakin Kogyo Kabushiki Kaisha

Kiichi Kanda

Shinichi Takahashi

Susumu Takahashi

Kenichi Watanabe

Yutaka Yanagawa

Tomohiro Wada

Akikazu Harada

Tomoyuki Haneji

Shin-Ichi Takahashi

Mochimasa Zusho

Tadashi Ariga

Ken-Ichi Watanabe

Natsumi Sakamoto

There are provided a method for heat treatment, a heat treatment apparatus, and a heat treatment system capable of efficiently controlling heat treatment such as a bright treatment with high precision and without causing oxidation and decarbonization. Computation of &#x394;G(standard formation Gibbs energy) is performed by referring to sensor information from respective sensors, and an Ellingham diagram, a control range, and a status of the heat treatment furnace in operation expressed with &#x394;Gare displayed on a display device, while a flow rate of hydrocarbon gas is controlled by a control unitso that &#x394;Gis within the control range.

Method for heat treatment, heat treatment apparatus, and heat treatment system

Provided are: a method for brazing an aluminum alloy, which is characterized in that brazing is carried out by heating an aluminum brazing sheet without using flux in a furnace that is in an argon gas-containing atmosphere, said aluminum brazing sheet comprising a core material that is composed of aluminum or an aluminum alloy and a brazing filler material that is composed of an aluminum alloy and clad on one surface or both surfaces of the core material, and said core material and/or said brazing filler material containing Mg; and a brazing apparatus which is used in the method for brazing an aluminum alloy. The brazing method has good and stable brazing properties and is applicable in industrial practice.

Method for brazing aluminum members and brazing apparatus used for same

Disclosed is a process of producing a porous metal body containing a metal component which is likely to be oxidized, by which process the amounts of residual carbon and residual oxygen therein are decreased, and by which the performance of the product porous body can be largely promoted. The process for producing a porous metal body by sintering a material of the porous metal body, which material is obtained by coating a slurry containing a metal powder and an organic binder on an organic porous aggregate, comprises a defatting step of treating the material of the porous metal body at a temperature not higher than 650&#xb0; C. in an atmosphere containing carbon monoxide and carbon dioxide; a decarbonization step of treating the material of the porous metal body after the defatting step in an inert atmosphere or vacuum atmosphere at a temperature not higher than sintering temperature; and a sintering step of retaining the material of the porous metal body after the decarbonization step in an inert atmosphere, vacuum atmosphere, hydrogen atmosphere, or in a reducing atmosphere containing hydrogen gas and an inert gas at a temperature not higher than the melting point of the metal powder.

Process for producing porous metal body

This invention relates to a method of brazing while the thickness of the opening between materials being brazed can not be maintained constant or can not be adjusted in the appropriate range. In order to solve this issue the porous material of metals or metal alloys consisting of Ni, Cu, Ti, Al, Ag or W should be utilized. The metallic porous material is inserted into the brazing opening mentioned above by using the softness of it, and is made to hold the brazing solder and to reinforce the bonding part after brazing.

Brazing method utilizing metallic porous materials

A novel fluoride flux with Li ions which is extermely insoluble to water and thus noncorrosive, and which is excellent especially for use with the brazing of articles made of aluminum alloys containing Mg. A novel method for preparing such fluoride flux by a dry process is also described.

Fluoride flux for aluminum brazing

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Hiratsuka, Japan

Kiichi Kanda