Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd.

Huawei Digital Power Technologies Co., Ltd.

Yanzhong Wang

Huan Wang

Ming Zou

Yong Deng

Shaohua Wang

Hua Guo

Zhenyu Han

Hu Zhong

Xiong Hu

Chunjian Wang

Xueyu Mei

Jihai Jia

Zhengyi Tang

Jianhua Liu

Shuliang Yu

Jiongde Chen

The present disclosure discloses a heat treatment method for a bainitic turnout rail, which includes: naturally cooling the turnout rail at a temperature in an austenite region after being finishing rolled to 450-480&#xb0; C. at a tread center of a rail head of the turnout rail; accelerated cooling the naturally cooled turnout rail to 230-270&#xb0; C. at the tread center of the rail head, a cooling rate at the tread center and a non-working side of the rail head being 1.5-5.0&#xb0; C./s, a cooling rate at the working side of the rail head increasing by 0.1-1.0&#xb0; C./s based on 1.5-5.0&#xb0; C./s; continuously accelerated cooling the working side, the tread center and the non-working side of the rail head at a cooling rate of 0.05-0.25&#xb0; C./s to decrease a temperature of the tread center of the rail head to 265-270&#xb0; C.; and finally, naturally cooling the turnout rail to an ambient temperature.

Heat treatment method for bainitic turnout rail

Growing community of inventors

Panzhihua, China

Yanzhong Wang