温、热锻模具的寿命,与冷锻模具寿命相比因热负荷大而较短。为了延长寿命,一般使用比较耐磨损的模具材料,或对模具钢进行表面硬化。其次是采用分散模具内压力,使材料流动均匀,降低材料加热温度,选用适当的润滑剂和模具冷却方法等措施。本文对温、热锻模具表面施行了各种氮化处理后的基本耐磨性进行评价,并对相应生产现场上进行的试验进行比较。 1.模具材类的基本性质 (1) 模具钢与硬化处理条件 Temperature, hot forging die life, compared with the cold forging die life due to heat load and shorter. In order to extend the life expectancy, the general use of more wear-resistant mold material, or surface hardening of the mold steel. Followed by the use of dispersed pressure within the mold, the material flow evenly, reducing the heating temperature of the material, the selection of appropriate lubricant and mold cooling methods and other measures. In this paper, the basic abrasion resistance after nitriding treatment was evaluated on the surface of hot and hot forging dies, and the tests on the corresponding production sites were compared. 1. The basic nature of mold material (1) die steel and hardened conditions