4Cr5MoV1Si热作模具钢采用常规热处理工艺处理后多次出现硬度不足的现象,研究表明在目前国内4Cr5MoV1Si钢的冶炼水平、锻造水平不尽理想的情况下,应依据实际情况适当调整工艺,提出系列改进方法:增加必要的扩散退火或锻后余热淬火工序,并提出淬火、回火中应注重的工艺要点,最终达到技术要求。 4Cr5MoV1Si hot work die steel after conventional heat treatment process hardness appears inadequate, the study shows that the current domestic 4Cr5MoV1Si steel smelting level, forging level is not ideal, should be based on the actual situation of the appropriate adjustments to the process, put forward a series of improvements Methods: Add the necessary diffusion annealing or forging afterheat quenching process, and put forward the quenching, tempering should pay attention to the technical points, and ultimately meet the technical requirements.