弹簧钢连铸方坯中心碳偏析探讨  

Investigation on Center Carbon Segregation of Spring Steel

作　　者：白映林[1,2] 周英豪[1,2] 何勇[1,2] 王翔[1,2] 夏辉华[1,2] 

机构地区：[1]首钢贵阳特殊钢有限责任公司,贵州贵阳550005 [2]贵州大学材料与冶金学院,贵州贵阳550000

出　　处：《现代机械》2010年第6期75-76,共2页Modern Machinery

摘　　要：对贵钢高碳弹簧钢连铸坯中心碳偏析的形成机理进行了系统的分析,研究了电磁搅拌、钢水过热度、拉速、二冷水量等连铸工艺参数对高碳方坯碳偏析的影响,指出低过热度浇铸和二冷水模强化冷却是解决弹簧钢连铸中心碳偏析的有效方法。The mechanism of central carbon segregation formation of high-carbon spring steel continuous casting billets have been discussed.The effects of M-EMS,superheat,casting speed,secondary coolingwater flowrateon carbon segregation of billets were investigated also.It is put forward that casting at near liquidus temperature and intensive secondary cooling are the effective way to solve the centerline carbon segregation in continuous cast spring steel billets.

关 键 词：弹簧钢 方坯连铸 中心碳偏析 低过热度 

分 类 号：TF762.5[冶金工程—钢铁冶金]