ZHANG Qiyun LIU Shuqi LAN Tie FU Yuchuan Peking University
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Beijing
,
China ZHANG Qiyun
,
Professor
,
Department of Chemistry
,
Peking University
,
Beijing
,
China
金属学报(英文版)
A study on the interfacial activity behavior of flux during aluminium brazing has been made by using metallography,SEM and electron prob techniques.The results show that the activity, of a flux is caused by the wetting of base metal with the liquid heavy metal reduced from the flux,thus,some regions of liquid alloy created,at which no aluminium oxide film covers on the surfaces.The reduced metal drops are finally trapped in the fillet.The size of the metal drops increases with the decrease of brazing temperature.
关键词:
aluminium brazing
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