针对CO2 气保焊飞溅大的缺陷 ,本课题组在研究其短路过渡机理和飞溅产生原因的基础上 ,开展了用纵向磁场控制CO2 气体保护焊飞溅的初步尝试。在进行了大量的工艺实验基础上 ,得到了以下的结论 :在一定的焊接规范下 ,外加纵向磁场有效的控制了CO2 焊短路过渡中的焊接飞溅 ,获得较好的工艺效果 ;同时 ,存在一个最佳的纵向磁场范围 ,在这个范围内 ,磁场对飞溅的控制效果较佳 Aiming at the large defect of CO2 gas welding spatter, this research group carried out the initial attempt to control the spatter of CO2 gas shielded welding by longitudinal magnetic field based on the research of the short-circuit transition mechanism and the spatter. On the basis of a large number of experiments, the following conclusions are obtained: Under a certain welding standard, the applied longitudinal magnetic field can effectively control the welding spatter during the short-circuiting of CO2 welding and obtain a better technological effect; at the same time, there exists a The best longitudinal magnetic field range, in this range, the magnetic field on the spatter control better