固液混合铸造工艺对铸铁硬度影响规律的研究  

Effect of Solid-Liquid Mixed Casting Technology on Hardness of Casting Iron

作　　者：刘劲松[1] 陈振华[1] 蒲玉兴[1] 李建跃[2] 

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082 [2]空军航空维修技术学院,湖南长沙410124

出　　处：《热加工工艺》2008年第11期20-21,共2页Hot Working Technology

基　　金：国家自然科学基金资助项目(50274037)

摘　　要：采用固液混合铸造技术制备了w(C)=5%的过共晶铸铁坯料,重点研究了一定范围内的金属粉末的加入量对固液混合铸造后的铸铁硬度变化的影响规律。结果表明,随加粉量的增加和粉末粒度的减小,固液混合铸铁坯料的硬度随之增高。Using solid-liquid mixed Casting, the hypcrcutcctic casting iron material with 5%C （mass fraction） was prepared. The effect of addition of metal powder at some range on hardness of casting iron by solid-liquid mixed casting was studied. The results show that the hardness of the casting iron prepared by the mixed solid-liquid casting increases with the increase of addition of metal power and the decrease of grain size of powder.

关 键 词：固液混合铸造 铸铁 硬度 

分 类 号：TG249.9[金属学及工艺—铸造]