讨论了窄间隙深槽打底焊焊接方法和工艺，认为用手工氩弧焊进行单面深槽打底焊效果最好。
Welding methods and technology of narrow gap quirk backing weld were discussed. Indirect quirk backing weld using manual hydrogen arc welding is considered as the best result.
焊接时尽量采用氩弧焊接，采用手工电弧焊时应采用小电流、快速焊，避免摆动。
Welding, as far as possible using argon arc welding, manual arc welding should be used in small current, fast welding, to avoid the swing.
介绍采用药芯焊丝手工钨极氩弧焊焊接奥氏体不锈钢管道所进行的焊接试验及工艺评定。
The welding experiment and procedure qualification for manual TIG welding of stainless steel tubes with flux cored electrode is presented in this paper.
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