合成铸铁在发动机高强度铸铁件生产中的应用  

Application of Synthetic Cast Iron in Production of High Strength Iron Castings

作　　者：刘振一 刘增良 冯淑花 

机构地区：[1]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2期240-242,共3页Foundry Technology

摘　　要：采用酸性炉衬中频感应电炉熔炼高强度合成铸铁,通过选取合适的化学成分,制定合理的炉料配比以及熔炼和浇注工艺,所生产的高强度合成铸铁,抗拉强度可以稳定达到300 MPa以上;在其他生产技术条件基本相同的情况下,合成铸铁与普通铸铁相比,抗拉强度提高18 MPa,硬度下降4 HBS,生产成本明显降低。Abstract： Taking acid lining intermediate frequency induction furnace melting high-strength synthetic cast iron, the tensile strength of producted high-strength synthetic cast iron can be stable up to 300 MPa by selecting the appropriate chemical composition, the reasonable charge ratio and the melting and casting process; compared to ordinary cast iron, the tensile strength of the synthetic cast iron is increased by18 MPa, hardness decreased by 4 HBS, production costs are significantly reduced in the same condition of techniques and production.

关 键 词：合成铸铁 高强度铸铁 生产技术 发动机 

分 类 号：TG251.1[金属学及工艺—铸造]