用稀土钙钡和FeSi75复合孕育处理改善气缸盖的组织和性能  

Improvement of Structure and Property of Cylinder Cover with FeSi75 Compounded Inoculation and RE-Ca-Ba

作　　者：陈历祥[1] 李树江[1] 孙孝经 

机构地区：[1]福州大学,福建福州350002 [2]重潍柴油机厂,重庆402262

出　　处：《铸造技术》2003年第2期120-121,123,共3页Foundry Technology

摘　　要：用稀土钙钡和FeSi75复合孕育剂孕育处理气缸盖 ,能显著减小铸件的白口倾向、增加共晶团数 ,提高铸件的强度 ,同时硬度变化不大 ,气缸盖可获得优良的综合力学性能 ,渗漏率从 60 %降至 1 0 %以下。The advantages include that chill tendency of casting is reduced remarkably, the amount of eutectic cells are increased , so does the strength. At the same time, the hardness isn't changed, and the leakage rate is decreased from 60% to 10%. Based on above, the cylinder cover has good mechanical property.

关 键 词：稀土钙钡合金 孕育处理 气缸盖 渗漏 

分 类 号：TG255[金属学及工艺—铸造]