末端电磁搅拌技术对82B钢中心碳偏析的影响  

INFLUENCE OF END ELECTROMAGNETIC STIRRING ON CENTRAL CARBON SEGREGATION IN 82B STEEL

作　　者：李家征[1] 张志强[1] 底根顺[1] 王宏斌[1] 

机构地区：[1]河北钢铁集团宣钢公司炼钢厂,河北宣化075100

出　　处：《河北冶金》2011年第8期31-34,19,共5页Hebei Metallurgy

摘　　要：为改善82B钢拉拔性能,降低铸坯中心碳偏析指数,在钢水过热度20～30℃,拉速1.9 m/min,二冷比水量0.7 L/kg,结晶器电磁搅拌4 Hz、240 A的条件下进行了末端电磁搅拌(F-EMS)的工艺研究。结果表明,末端电磁搅拌6 Hz、160 A条件下铸坯的中心碳偏析指数≤1.05。Under the condition： superheating temperature of molten steel being 20 -30 ~C, drawing speed 1.9 m/min, second cooling unit water quantity 0.7 L/kg, mold electromagnetic stirring 4 Hz and 240 A, the process of end electromagnetic stirring is researched to reduce central carbon segregation index in billet. It is showed from the result that the index is smaller than 1.05 under 6Hz and 160A.

关 键 词：82B钢 中心碳偏析 末端电磁搅拌 

分 类 号：TF771.2[冶金工程—钢铁冶金]