道叉是铁路上很重要的零件,它不仅受到严重的磨損,同时也受到相当大的冲击,所以經常需要換修。我們参考苏联資料,和大連工务段配合,对道叉用高锰钢焊条堆焊进行了初步試驗,希望堆焊層得到良好的耐磨性能。焊条芯是利用廢弃的高錳鋼道叉加热锻成,直徑6毫米,長度在300～350毫米之間。锻制的焊芯,用10% Road fork is a very important part of the railway, it is not only severely worn, but also subjected to considerable impact, so often need to repair. We refer to the Soviet Union data, and work together with the Dalian section of the cross with high manganese steel electrode surfacing conducted a preliminary test, hope Surfacing layer get good wear resistance. Electrode core is the use of discarded high manganese steel fork forging heating, diameter 6 mm, length of 300 to 350 mm. Wrought welding core, with 10%