QT600-5高耐磨性下汽缸铸件熔炼工艺优化  

Melting Process Optimization of QT600-5 Cylinder Castings with High Wear Resistance

作　　者：柯志敏 陈鹏辉 KE Zhi-min;CHEN Peng-hui(Guangdong Zhongtian Chuangzhan Ductile Iron Co.,Ltd.,Yingde Guangdong 513042,China;Guangdong Research Center for High Peiformance Large Castings Manufacturing and Simulated Engineering Technology,Yingde Guangdong 513042,China)

机构地区：[1]广东中天创展球铁有限公司,广东英德513042 [2]广东省高性能大型铸件制造及模拟工程技术研究中心,广东英德513042

出　　处：《铸造设备与工艺》2023年第1期36-38,共3页Foundry Equipment & Technology

基　　金：2022年英德市科技计划项目(项目编号:5)。

摘　　要：为提高筒式柴油打桩机下汽缸铸件耐磨性,本文分析下汽缸铸件的技术要求及铸造难点,采用材质为QT600-5生产、通过优化熔炼工艺:(1)严格控制铸件化学成分,并加入0.3%~0.5%Mn+0.5%~0.55%Cu+0.3%~0.5%Mo复合合金化;(2)采用冲入法球化处理,多次孕育的熔炼工艺。结果表明:生产出来的铸件力学性能符合客户要求、且具有优异的耐磨性,经客户反馈,使用寿命大幅度提高。In order to improve the wear resistance of the lower cylinder casting of cylindrical diesel pile driver,the technical requirements and casting difficulties of the lower cylinder casting are analyzed in this paper,QT600-5 was produced and the melting process was optimized by strictly controlling the chemical composition of the casting,adding 0.3%~0.5%Mn+0.5%~0.55%Cu+0.3%~0.5%Mo composite alloying,and adopting the melting process of nodulizing treatment and inoculation for many times.The results show that the mechanical properties of the castings meet the requirements of customers and have excellent wear resistance After customer feedback,its service life is greatly improved.

关 键 词：下汽缸铸件 球墨铸铁 耐磨性 复合合金化 球化处理 

分 类 号：TG231[金属学及工艺—铸造]