无砟轨道现场闪光接触焊钢轨焊头平直度的控制

摘要

介绍了无砟轨道现场闪光接触焊接方法的应用现状，从闪光接触焊机对轨精度、粗磨工艺、正火及调直过程等方面，分析了影响现场闪光接触焊钢轨焊头平直度的因素，并提出了具体的控制措施，以保证焊接工程的质量。%The paper introduces the application of the spark welding method on the ballastless rail sites,analyzes the factors affecting the smooth-ness of the welding head on the sites from the rail accuracy,coarse grinding,normalizing and straightening process,and points out the controlling measures,so as to ensure the quality of the welding projects.