摘要
对高铬铸铁磨球分别采取了淬火+回火热处理、常规等温淬火和分级奥氏体化等温淬火热处理,并对组织和性能进行了对比研究。结果表明,磨球经等温淬火后的冲击韧度和抗冲击疲劳性较高。对于服役于大直径球磨机的高铬铸铁磨球,等温淬火热处理工艺较好。
The influence of quenching-tempering heat treatment, conventional austempering heat treatment and multi-stage austenitizing austempering heat treatment on the microstructure and property of high chromium cast iron grinding balls were comparative investigated. The results show that the impact toughness and impact fatigue resistance of the grinding balls are higher after austempering. Austempering heat treatment process is helpful for the high chromium cast iron grinding balls served in the large ball mill.
出处
《铸造技术》
CAS
2018年第1期173-177,共5页
Foundry Technology
关键词
高铬铸铁磨球
等温淬火
分级奥氏体化
冲击韧度
抗冲击疲劳性
high chromium cast iron grinding ball
austempering
multi-stage austenitizing
impact toughness
impact fatigue resistance
