院机械系“提高电力系统主要磨损易耗件使用寿命的研究”课题小组,通过对高铬铸铁组织转变规律的探讨,于一九八一年九月研究出四项高铬铸铁热处理新工艺。目前,这四项新工艺已在实际应用中取得显著成效,其中: 1.退火新工艺能使Cr15-Mn2-W高铬铸铁和Cr15-Mo3低碳型高铬铸铁的攻丝问题得到解决,硬度降低到HRC31以下;Cr15-Mo2-Cu高铬铸铁在退火周期为13小时的前提下硬度降低到HRC36。 Institute of mechanical “to improve the power system wear and tear of the service life of the subject” group, through the transformation of high-chromium cast iron organization, in September 1981 to study out four high-chromium cast iron heat treatment of new technology. At present, these four new technologies have achieved remarkable results in practical applications. Among them: 1. The new annealing process can solve the tapping problem of Cr15-Mn2-W high-chromium cast iron and Cr15-Mo3 low-carbon high- Hardness is reduced to below HRC31; Cr15-Mo2-Cu high chromium cast iron hardness reduced to HRC36 in the annealing cycle of 13 hours.