According to austenite isothermal transformation diagram,a heat treatment process for producing the left and right pincers through fixed heating time and the position was put forward.

• 借助奥氏体等温转变曲线,创立了定时定位的热处理工艺方法,用于左右钳口的生产,一次达到设计要求,简便可靠,省时节能。