废钢增碳在合成铸铁中的应用探讨  

Application of recarburization for scrap steel to compound cast iron

作　　者：李娄明[1] 朱正锋[1] 张剑云[1] 徐贵宝[1] 曹健峰[1] 

机构地区：[1]南车戚墅堰机车车辆工艺研究所有限公司,江苏常州213011

出　　处：《铁道机车车辆工人》2012年第4期1-3,共3页Railway Locomotive & Rolling Workers

摘　　要：利用废钢增碳的方式取代传统的生铁来生产合成铸铁,可提高铸件质量,降低生产成本。本文介绍了增碳剂的选用及其性能指标,分析了熔炼速度和温度、铁液化学成分、铁液搅拌以及增碳剂加入量、加入方式等熔炼工艺对增碳剂吸收率的影响,并探讨了废钢增碳工艺后的合成铸铁的组织及性能变化趋势。Production of compound cast iron with scrap steel recarburization in place of conventional pig iron can improve the quality of castings and reduce the cost of produc- tion. This paper introduces the selection and properties of recarburizers, analyzes the in- fluence of melting speed and temperature, chemical composition of molten iron, stirring of molten iron, addition of reearburizer and the adding process on the absorptivity of recar- burizer, and studies the trend of structures and properties of compound iron with the appli- cation of scrap steel recarburizing process.

关 键 词：合成铸铁 增碳剂 熔炼工艺 吸收率 组织和性能 

分 类 号：TG250.2[金属学及工艺—铸造]