奥氏体不锈钢局部充氩保护焊接工艺

Welding Technique of Austenitic Stainless Local Argon-filled Protection

针对奥氏体不锈钢现场焊接根部易于氧化的问题，在大量试验的基础上，采用氩弧焊枪和充氩喷嘴从坡口间隙局部充氩保护的焊接工艺，取得了较好的效果，并在电厂检修中得以应用。

Based on tests,the argon filled welding technique is applied through special nozzle locally filling argon from gap between grooves.Thenceforword the problem that welding of Austenitic stainless is easy to be oxidized is solved.The safety of tubes with high temperature and high pressure can be assured by adopting this technique.