Flash can be continual and steady,and then,the good welding joints could be obtained by properly controlling feeding speed of shifting unit of rail continuous flash welding.

• 有效地控制钢轨连续闪光焊的动力柱送进速度,可以使整个焊接过程保持连续和稳定的闪光,从而获得优良的焊接接头。