D2冷作模具钢的真空热处理

利用在真空加热炉内充入低压氩气的方法,对 D2钢进行加热和淬火处理,则 D2钢模具表面光洁度高,表面成分无变化,同时模具的变形量小,耐磨性有较大的提高。将这种真空热处理的 D2 钢制成的冷作模具应用于实际生产中,其使用寿命较之经盐浴加热处理的提高 33％。从而证明这是提高 D2 钢冷作模具的一种有效热处理工艺。

Effective Vacuum Heat-Treatment for Die Steel D2

The dies made from steel D2 offers high surface smoothness,no change in surface constituent,small deformation and improved wearability if the steel is heated and quenched in a vacuum furnace in which the low-pressure argon is filled. Such cold-working dies will have,as proved by commercial applications,a service life 33% longer than those heat-treated in salt baths.This method of vacuum heat-treatment is therefore regarded as an effective process for die steel D2.