In the welding machine processing, the feeding wire moto or weldingtractor will appear the non-rule surges phenomenon, which will cause the welding difficult.
焊机运行过程中，送丝电机或焊接小车会出现无规则涌动现象，使焊接过程难以正常进行。
2
The design of main power sources structure, the control circuit for weldingtractor and wire feeder, SCM control circuit and software for welding process are introduced in detail.
The frame of mast derrick that is designed for hydraulic wheel tractor hoist adopt welding of armor plate, its section is oblong armor plate, and its material is HG60.