FTSC薄板坯裂纹影响因素分析与控制  

Analysis and control of cracks on FTSC thin slab

作　　者：陈健[1] 朱立光[1] 果晶晶[1] 

机构地区：[1]河北理工大学冶金与能源学院,河北唐山063009

出　　处：《炼钢》2010年第6期17-20,共4页Steelmaking

基　　金：教育部新世纪优秀人才支持计划(NCET06-0267)

摘　　要：针对某厂FTSC薄板坯连铸机2009年1-4月SS400钢的生产情况,统计分析了钢水成分与连铸工艺参数等各因素对发生板坯裂纹的影响程度及原因,并建议生产该钢种时应将钢水C、Si含量按下限控制,尽量减少S、P含量,使w（Mn）≥0.020%;连铸中间包过热度控制在18-32℃,并尽量保证拉速稳定在3.9-4.2m/min。The present paper statistically analyzes the effects of hot metal compositions and the process parameters of continuous casting on the occurrence of slab crack on the basis of investigation in the production of steel grade SS400 by FTSC thin slab continuous caster in a specific steel-making plant in 4 months from January to April in 2009 and proposes that in production of this steel grade C and Si conent in the liquid steel should be controlled in the lower limit;／ and ／ content be reduced to as less as possible and w（Mn）≥0.020%;overheat of the tundish should be controlled within the range of 18~32℃ and the drawing speed maintains at 3.9 to 4.2 m/min consistently.

关 键 词：裂纹 钢水成分 连铸工艺参数 

分 类 号：TF777.1[冶金工程—钢铁冶金]