铜对发动机汽缸套铸件质量的影响  

Influence of Copper on Casting Quality of Cylinder Cover in Engine

作　　者：刘振一 冯淑花 刘增良[1] 

机构地区：[1]河北华北柴油机有限责任公司,河北石家庄050081

出　　处：《铸造技术》2013年第3期373-374,共2页Foundry Technology

摘　　要：采用1.5 t酸性中频感应电炉熔炼铁液,采用硅钡孕育剂BS-I处理铁液,研究了铜对高磷铸铁汽缸套铸造质量的影响。结果表明,当铜在汽缸套铸件中的用量控制在0.50%～0.80%时,可以使片状石墨和网状磷共晶细化,明显提高铸件的抗拉强度,硬度略有增加,可以保证汽缸套的破裂压力达到40 MPa以上。The influence of copper on the quality of cylinder cover of high-phosphor cast iron was investigated by adopting intermediate frequency induction furnace for iron melting and SiBa inoculant to gestate the base iron. The results show that, when the content of Cu in cylinder cover casting is 0.50%-0.80%, the sheet graphite and reticulation phosphoreutectic in the cast iron can be refined, the mechanical properties of the cast iron obviously increase, and the breaking_pressure is kept stably higher than 40 MPa.

关 键 词：铜 汽缸套 铸件质量 发动机 

分 类 号：TG250[金属学及工艺—铸造] TK425[动力工程及工程热物理—动力机械及工程]