摘要
为了满足模架钢加工与使用性能的需求,采用加入易切削元素硫,并适当添加锰、钙的成分设计思路,在优化冶炼、连铸、轧制工艺的基础上成功开发出了板坯连铸硫系Y55钢板,并分析了它的硬度、组织、夹杂物与加工性能。结果表明:Y55钢板的硬度范围在180~200 HB之间,其显微组织为珠光体和网状铁素体,夹杂物是以硫化锰为主的复合夹杂物;与S50C钢板相比,Y55钢板的加工性能大幅提高。
In order to meet manehing and usability needs of mold steel, a slab continuous casting sulfur Y55 steel plate was successfully developed through adding free-cutting element sulfur, appropriate manganese and calcium, and optimizing smelting, continuous casting and rolling processes： its mechanical and cutting performances were analyzed.The results show that the hardness of Y55 steel plate was 180-200 HB, the steel＇s microstrucure was pearlite and reticular ferrite, and the inclusions were composite inclusion mainly MnS-oriented. Compared with S50C steel plate, the machining performance of Y55 steel plate was improved sharply.
作者
董富军
赵和明
刘小林
杨才福
DONG Fu-jun ZHAO He-ming LIU Xiao-lin YANG Cai-fu(Central Iron and Steel Research Institute, Beijing 100081, China Xinyu Iron and Steel Group Co., Ltd., Xinyu 338001, China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2017年第1期72-75,共4页
Materials For Mechanical Engineering
基金
2012年新余科技支撑项目(余财教[2012]59号)
关键词
易切削钢
连铸板坯
加工性能
模架钢
free-cutting steel
continuous casting slab
machining performance
mold steel
