对于采用3Cr 2W 8V 钢制的热成型模具,按照传统热处理工艺处理后其使用寿命偏低所存在的问题,近年来有过一些介绍。本文针对该类材料制作的热成型模具过早失效的情况进行了一些失效分析,并从提高模具的强度、硬度与冲击韧性相互配合方面考虑,作了一些热处理工艺试验研究,使模具的使用寿命比原工艺处理后提高一倍以上。 For 3Cr 2W 8V steel thermoforming mold, in accordance with the traditional heat treatment process of its service life is low, there are some problems in recent years have had some introduction. In this paper, some failure analysis of the thermoformed mold made of this kind of material was conducted prematurely, and some experiments of heat treatment process were made from the aspects of improving the strength, hardness and impact toughness of the mold, which made the service life of the mold Than the original process more than doubled.