一种贝氏体钢轨焊接接头热处理工艺,对常温下的、未经过任何热处理的贝氏体钢轨焊接接头进行全断面火焰加热,当焊缝全断面温度加热到550℃-650℃时停止加热,焊接接头在环境温度下自然冷却。通过本发明所述热处理工艺实现了接头具有良好的贝氏体结构,实现了贝氏体钢轨焊接接头较好的力学性能。

The invention relates to a heat treatment process for bainitic rail welded joints, which carries out full section flame heating for the bainitic rail welded joints without any heat treatment at normal temperature. When the full section temperature of the weld is heated to 550 ℃ - 650 ℃, the heating is stopped, and the welded joints are naturally cooled at ambient temperature. Through the heat treatment process of the invention, the joint has good bainite structure and better mechanical properties of bainite rail welded joint.