摘要
正火预处理可以细化原始组织和碳化物 ,可使 5Cr Mn Mo钢在临界温度加热淬火 ,提高其强韧性 ,减少脆裂现象发生。经生产验证 ,正火预处理是提高 5Cr Mn
Normalizing pretreatment has several advantages as refining the microstructure and carbide, improving toughness, lessening brittle cracks Verified by production, it is an effective method of improving the service life of 5CrMnMo steel heat forging die
出处
《山西机械》
2000年第4期33-35,共3页
Shaanxi Machinery
关键词
正火
使用寿命
热锻模具
forging die
normalizing pretreatment
service life
