摘要
针对紫铜焊接性较差的特点,在不预热的情况下分别采用Ar、He、N2及Ar+N2保护气体对厚壁紫铜进行了TIG焊接工艺的研究,并对试验结果进行了分析与比较。试验结果表明,采用He、N2及Ar+N2保护气体可使得电弧的热效应显著提高,实现紫铜的不预热TIG焊接是可行的。
Aim at bad welding performance of red copper, the paper studied the TIG welding technology of thick-wall red copper adopting At, He, N2 and Ar+N2 under non-warming-up condition, and analyzed and compared the test result.The experimental result shows that welding arc's heating effect is evidently increased with using controlled atmosphere of He, N2 and At+N2, it's feasible to realize TIG welding of red copper under non-warming-up condition.
出处
《机械工程师》
2008年第11期128-130,共3页
Mechanical Engineer
关键词
不预热
紫铜
TIG焊接
non-warming-up
red copper
argon tungsten-arc welding