COMPOSITE BRAZING FILLER METAL, BRAZING METHOD USING THE SAME AND BRAZED STEEL PRODUCT

PROBLEM TO BE SOLVED: To provide a composite brazing filler metal suppressing generation of microvoids when brazing steel materials.SOLUTION: A composite brazing filler metal 1 for brazing materials 10, 11 to be brazed made of steel material includes an Au brazing filler metal layer 2, and superpose...

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Bibliographic Details
Main Authors YAMANAKA KOICHI, MORIHASHI RYO, IMAMURA YOSHIHIDE, OGISHI HIDEYUKI, IWASAKI ISATO
Format Patent
LanguageEnglish
Published 11.07.2013
Subjects
ALLOYS
CHEMISTRY
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
FERROUS OR NON-FERROUS ALLOYS
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WELDING
WORKING BY LASER BEAM
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Summary:PROBLEM TO BE SOLVED: To provide a composite brazing filler metal suppressing generation of microvoids when brazing steel materials.SOLUTION: A composite brazing filler metal 1 for brazing materials 10, 11 to be brazed made of steel material includes an Au brazing filler metal layer 2, and superposed brazing filler metal layers 3 which are arranged on both sides on the Au brazing filler metal layer 2 interposed therebetween, have a lower melting point than that of the Au brazing filler metal layer 2 and are made of a metal hardly alloyed with the materials 10, 11 to be brazed. Thus, the melting point of the brazing filler metal is lowered and diffusion of Fe is suppressed to suppress generation of the microvoids.
Bibliography:Application Number: JP20110288743