钢轨焊后热处理现状及分析

Status and Analysis of Heat Treatment for the Welded Rail Joints

我国铁路建设施工中钢轨焊后热处理主要采用中频电感应加热和火：焰加热两种方式。中频电感应加热方式的自动化程度较高，不易受操作人员的素质和环境因素的影响；而火焰加热方式多为人工操作，且不易形成量化控制标准，所以受到人为和环境因素的影响较多。伴随中频感应加热技术的进步和铁路施工质量要求的不断提高，中频电感应加热方式在钢轨焊后热处理领域应得到进一步推广。

Induction normalizing and flame normalizing are both methods of heat treatment for welded rail joints. Induction normalizing equipment is usually controlled by automatic method, and flame normalizing equipment is usually controlled artificially. Induction normalizing is more stable and reliable than flame normalizing. So, induction normalizing should be further promoted.