为了改革直流电机主极铁心叠片的紧固工艺,上海直流电机厂在一机部八院的协助下,正在探索采用焊接工艺。并试制了一台主极铁芯叠焊设备。焊接工艺选择细丝二氧化炭保护焊,磁极极身上有四条焊缝,对极靴较长的二极电机其中二条可放在极靴上。槽形均为V形直角槽,焊接时工件自下往上焊炬固定,焊接规范选择为:焊接电流为100--120安;电弧电压为19.5～20.5伏;焊接回路电感为0.03～0.04毫亨;反极性焊接,焊接速度7--10 In order to reform the fastening process of the DC core of the main pole core, Shanghai DC Motor Factory is exploring the use of welding technology with the help of eight homes of a machine department. And trial production of a main pole stacked welding equipment. Welding process selection of carbon dioxide shielded welding, polar body has four welds on the pole, the pole of the long two pole motor which can be placed on two pole shoes. Grooves are V-shaped rectangular groove, the welding workpiece welding torch fixed from bottom to top, the welding specifications are: welding current 100-120A; arc voltage 19.5-20.5 volts; welding circuit inductance of 0.03-0.04 milli Heng; reverse polarity welding, welding speed 7--10