CO_2气体保护焊多层多道焊缝层间未熔合的成因与控制

Reason and Control of CO_2 Gas Shielded Welding Multilayer Multichannel Weld Layer Lack of Fusion

从对焊接时操作者采用的操作方法入手,结合CO2气体保护焊的特点以及生产实践经验进行综合原因分析,总结出独特的操作方法进行焊接,工件焊后经超声波检测,焊缝均为一级合格,同时减小了工件的变形量。

From the method adopted by welding operator combining the characteristics of CO2 gas shielded welding and production practice experience, the authors carried out the analysis on the reason of CO2 gas shielded welding multilayer multichannel weld layer lack of fusion. Welds are primary qualified by the unique method of operation for welding and controlled by ultrasonic testing, and at the same time the welding deformation is also reduced.