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Study on Al/Cu dissimilar nonferrous metals vacuum brazing technology
Author(s): 
Pages: 36-38
Year: Issue:  1
Journal: WELDING TECHNOLOGY

Keyword:  Al/Cu真空钎焊去膜机理Al-Si钎科溶蚀;
Abstract: 针对铝和铜异种有色金属钎焊工艺,从钎料选择、焊前清理、接头装配和钎焊工艺要点等方面时Al/Cu真空钎焊的去膜机理和界面结合特点等进行了研究,分析了真空钎焊加热温度、升温速度、保温时间和真空度等工艺参数对钎焊接头性能的影响.结果表明,Al-Si钎料中加入1%~1.5%的Mg作为活化剂,有利于铝母材表面氧化膜的去除;加热温度、保温时间及钎科用量对母材溶蚀的产生具有重要影响.
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