Enhanced process security in quenching and tempering of wheels for high-speed trains

摘要

A mathematical model has been developed to calculate the optimum quenching parameters for hardening wheel rims. The model was implemented to control a fully automated quenching and tempering line installed at Taiyuan Heavy Industry Co. Ltd., Shanxi, China in 2013. Operation over a period of 18 months has confirmed that the model renders previously required time-consuming tests in the pre-production and startup phases following product changes unnecessary.