车架前梁损坏部位大多在引导轮轴套孔处产生裂纹,或在与大梁固定的螺栓处产生裂纹。修复时我们采用两个不是同侧损坏的前梁,取其完整的一侧拼凑在一起,加钢筋焊接的办法进行修复。使用焊条 T422、T423、T426、T427均可。几年来共修复二百三十多个前梁,并未发现从焊接处有断裂的现象。工艺简便,修复成本仅占新件的5～10%。各公社、厂、站都可修理。修复工艺如下: Most of the damaged parts of the front beam of the frame generate cracks in the bushing hole of the guide wheel or crack in the bolts fixed with the girder. We used to repair two is not the same side of the damaged front beam, take the entire side of the pieced together, plus steel welding methods to repair. Use electrodes T422, T423, T426, T427 can be. Over the past few years to repair more than two hundred and thirty anterior beams, did not find the phenomenon of fracture from the weld. The process is simple, repair costs only 5% to 10% of new pieces. Communes, factories, stations can be repaired. Repair process is as follows: