外加磁场对CO_2焊的影响  

The influence of magnetic field on CO_2 arc welding

作　　者：江淑园[1] 陈焕明[1] 熊震宇[1] 刘志凌[1] 

机构地区：[1]南昌航空工业学院材料科学与工程系,江西南昌330034

出　　处：《南昌航空大学学报（自然科学版）》2003年第2期56-59,共4页Journal of Nanchang Hangkong University(Natural Sciences)

基　　金：江西省自然科学基金项目 ( 0 15 0 0 40 )

摘　　要：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 。Aimed for the big spatters of CO 2 gas shield welding, the study group carried out a rudiment attempt that control the spatter in CO 2 gas shield welding with longitudinal magnetic field on the base of studying its short-circuiting transfer principle and cause of the spatters. Based on a great deal of experiments, the conclusion was obtained as follows: under certain weld criterion parameter, longitudinal magnetic fields can restrain the spatter of CO 2 arc welding short-circuiting transfer effectively, obtain good technical effect; At the same time, there is an optimal range of magnetic field in which the effect of spatter controlling is best.$$$$

关 键 词：纵向磁场 CO₂气保焊 短路过渡 飞溅 

分 类 号：TG444[金属学及工艺—焊接]