摘要
介绍了采用氦-氩混合气体保护焊焊接黄铜制换热器管子与管板先胀后焊的焊接工艺,并将焊接结果与氩弧焊作了对比,还分析了氩弧焊、氩-氮混合气体保护焊、氦-氩混合气体保护焊成败的原因。
Expanding-welding procedure used for the fabrication of brass tube sheet for heat exchanger adopting He-Ar mixed shielding gas welding process is introduced, The comparison is made for the results between He-Ar mixed gas and pure Ar gas processes. The reasons is indicated for the joint failure as using pure Ar and Ar-N mixed gas as shielding for the process.
出处
《焊接》
北大核心
1993年第10期13-15,21,共4页
Welding & Joining