By Production Practice的意思|示意

结合生产实践 Causes of influenting guide - rail heat treatment quality are expounded, including chemical composition and primary tissue of raw material, martensitic phase transformation plasticity, residual austenite, inverse hardening of bearing stell quenching as well as process operation in quenching and tempering and so on. By production practice, proper heat treatment process is laid down and heat treatment quality of guiderail is effectively controlled.