METHOD FOR BLAZING ALUMINUM MEMBER AND COPPER OR STAINLESS STEEL MEMBER

PROBLEM TO BE SOLVED: To provide a method for brazing at a low temperature, with which the joined part between an aluminum member and a copper member or a stainless steel member has good elongation, toughness and mechanical strength without developing harmful gas and needing aftertreatment. SOLUTION...

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Bibliographic Details
Main Author ASANO YUICHIRO
Format Patent
LanguageEnglish
Published 22.05.2001
Edition7
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:PROBLEM TO BE SOLVED: To provide a method for brazing at a low temperature, with which the joined part between an aluminum member and a copper member or a stainless steel member has good elongation, toughness and mechanical strength without developing harmful gas and needing aftertreatment. SOLUTION: In the brazing method of the aluminum member and the member composed of the copper or the stainless steel by using Zn-Al alloy base or Al-Si-Zn alloy base brazing filler metal, the brazing filler metal and Cs-F base non-corrosive flux are set on a joining surface, and the heating process is continued. As the Zn-Al alloy base brazing filler metal, the alloy containing 55-95 wt.% Zn and 45-5 wt.% Al are desirable to use, and as the Al-Si-Zn alloy base brazing filler metal, the alloy containing 20-60 wt.% Zn, 1-10 wt.% Si and 30-79 wt.% Al are desirable to use. Further, as the flux, CsF-AlF3 base flux is desirable to use.
Bibliography:Application Number: JP19990327466