Copper and stainless steel brazing process

The invention relates to a copper and stainless steel brazing process, which is characterized by comprising the following steps of 1) processing before brazing; 2) assembling joints; 3) adding brazing filler metal and brazing flux; 4) brazing; and 5) processing after brazing. Since silver-base brazi...

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Bibliographic Details
Main Authors ZHAO XIANGJI, LI JINSHI, LIU ZIDONG
Format Patent
LanguageChinese
English
Published 04.07.2012
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:The invention relates to a copper and stainless steel brazing process, which is characterized by comprising the following steps of 1) processing before brazing; 2) assembling joints; 3) adding brazing filler metal and brazing flux; 4) brazing; and 5) processing after brazing. Since silver-base brazing filler metal is replaced by copper-base brazing filler metal in the process, manufacturing cost is reduced and noble metal resources are saved greatly. Brazing is realized in the air without protective gas so that expenses for consumption of nitrogen gas, argon gas and the like are reduced. Due to the fact that the technology of brazing in a protective gas furnace or vacuum furnace is replaced by the technology of brazing by induction heating, electric power is saved. Accordingly, the copper and stainless steel brazing process is reliable, requires short production time, enables pass rate to be high, saves energy sources and is suitable to be used for batch production.
Bibliography:Application Number: CN20111451145