This article introduces the welding technology of PW T automatic backing welding and RMS automatic filling welding technology,especi ally for choosing welding materials,caculating the welding parameters and contr olling the welding quailty.

• 介绍了PWT外焊自动根焊和RWS自动焊填盖技术,重点讲述了自动焊技术中焊接材料的选用、焊接工艺参数的计算和焊接质量的控制。