CO_2短路过渡过程检测及应用  

DETECTION OF SHORT CTRCUTTING TRANSFER PROCESS IN CO_2 WELDING AND ITS APPLICATION

作　　者：郭大勇[1] 李晓坤[1] 区智明[1] 

机构地区：[1]清华大学,北京市100084

出　　处：《焊接》1998年第7期12-15,共4页Welding & Joining

摘　　要：分析了CO_2气体保护焊短路过渡飞溅产生的机理,阐述了导致飞溅产生的三个重要过程,即瞬时短路、液桥缩颈后爆断和重新燃弧时冲击熔池。提出了CO_2短路过渡液桥状态检测的新方法,并介绍了液桥状态传感器系统的工作原理、组成及此方法在抑制短路电弧飞溅产生的新型工艺质量控制法中的应用,并取得了满意的工艺效果。Based on the analysis of mechanism of spatter generation during short circuiting transfer, three types of spatter process in CO2 arc welding are examined. A new detecting method is presented, which shows the various phase of metal droplet transfer. The detecting system is applied to the new kind of instant process control to reduce the spatter during short ciucriting transfer. Best results are obtained through experiments.

关 键 词：短路过渡 液桥状态检测 二氧化碳保护焊 焊接 

分 类 号：TG444.73[金属学及工艺—焊接]