MAG焊旋转射流过渡时液流束的稳定性分析  

Stability of Liquid Metal Jet During Rotating Transfer in MAG

作　　者：王军[1] 王会霞[1] 梁志敏[1] 胡云岩[1] 

机构地区：[1]河北科技大学材料科学与工程学院,河北石家庄050018

出　　处：《热加工工艺》2010年第11期175-177,共3页Hot Working Technology

摘　　要：介绍了大电流MAG焊旋转射流过渡液流束的稳定性,指出液流束自身所具有的压缩不稳定性和螺旋不稳定性,是引起旋转射流过渡的内在因素。分析了焊丝直径对液流束稳定性的影响,指出焊丝直径越细旋转射流过渡的稳定性越强,为实现稳定的旋转射流过渡提供了理论依据。The stability of liquid metal jet （LMJ） during rotating transfer was discussed. The pinch instability and the twisting instability of LMJ at high current was the immanent factor to cause the rotating transfer. The effect of the wire diameter on rotating transfer was studied. The results show that the smaller the diameter, the more the stability of LMJ.

关 键 词：旋转射流过渡 液流束 稳定性 

分 类 号：TG444.77[金属学及工艺—焊接]