目前,国内外都在围绕降低能源消耗来进行技术改造。利用锻件锻造后的余热进行等温退火,比原来锻件冷后再进行等温退火的方法可节约能源70％。与一般正火相比,可节省能源43％,同时提高了锻件质量,改善了车间劳动环境,缩短了工艺周期。因此,国内外正在推广和发展,现将这一工艺和国内外应用情况综合起来作一介绍。一、工艺规范及特征利用锻件余热进行等温退火,是在锻件终锻切边后,以一定的冷却速度 At present, both at home and abroad to carry out technological transformation around reducing energy consumption. The use of forging afterglow forging isothermal annealing, forging than the original forgings after cold isothermal annealing method can save 70% of energy. Compared with normalizing, energy saving can be 43%, while improving the quality of forgings, improving the working environment of the workshop and shortening the process cycle. Therefore, at home and abroad are being promoted and developed, now this technology and domestic and international applications to make a presentation. First, the process specifications and characteristics The forging residual heat for isothermal annealing, forging the final forging trimming, with a certain cooling rate