本文介绍了高锰钢辙叉和钢轨间加入中间过渡材料进行的闪光接触焊。焊接后的高锰钢热影响区奥氏体组织未有析出晶界碳化物，钢轨热影响区没有马氏体组织产生。焊接接头具有良好的焊接性能。该技术已应用在高锰钢焊接辙叉上。

Medium material is used for the flash about welding of high manganese steel frogs to rails. No separated carbide is generated from the austenite microstructure in heat affected zone on high manganese steel frogs, nor martensite microstructure appears in the heat affected zone on rails. Excellent weldability is realized at the welding joints. This technology is employed in the welding of high manganese steel frogs.