摘要
以试验为基础,分析了船用钢结构980钢超窄间隙GM AW工艺中坡口内出现剩磁的原因;在使用表面张力STT电源和全数字化脉冲M IG/M AG(TPS5000)电源两种不同的电源时,剩磁对电弧工作状态及焊缝侧壁熔合的影响。探讨了消除STT电源工作中剩磁不利影响的方法,外加纵向磁场可以消除剩磁的影响,促进两侧壁的熔合。
Based on the experiment,it analyses the cause of magnetic remnant appearing on groove of steel 980 ultra narrow gap GMAW in shipbuilding;when two different welding source,surface tension transition (STT) welding source and all-digital impulsion MIG/MAG(TPS5000) source are used,the magnetic remnant influences arc functional mode and bead sidewall fusion.It discusses the means of removing the disadvantage influence of magnetic remnant when surface tension transition(STT) welding source works,such as the external longitudinal magnetic field can remove disadvantage influence of magnetic remnant and boost the fusion of two side walls of the groove.
出处
《电焊机》
2005年第4期56-59,共4页
Electric Welding Machine
关键词
剩磁
超窄间隙GMAW
电弧机械作用力
侧壁熔合
magnetic remnant
ultra narrow gap GMAW
arc mechanical reaction force
sidewall fusion
