The temperature field in welding HAZ was studied and analyzed. Welding heat curve was set up by argon-shielded tungstenarcwelding experiment.
通过钨极氩弧焊试验，对焊接热影响区温度场进行分析和研究，建立了焊接热循环曲线。
2
The selections of repair welding technology are compared, and the repair welding technology using handwork gas tungstenarcwelding is detailed. The result with good effect is got.
对补焊工艺方法的选择作了比较，具体阐明了采用手工钨极氩弧焊的补焊工艺方法，实践证明，效果良好。
3
This scheme not only eliminates the interference between main arc and pilot arc, but also reduces the deterioration of the tungsten electrode and improves the stability of welding process.