电磁制动条件下板坯结晶器内钢液冶金行为的数值模拟  

Numerical Studies on Metallurgical Behavior of Liquid Steel in Slab Mold with Electromagnetic Brake

作　　者：倪升起[1] 彭世恒[2] 

机构地区：[1]宝钢分公司,上海201900 [2]钢铁研究总院先进钢铁流程及材料国家重点实验室,北京100081

出　　处：《钢铁钒钛》2011年第4期36-41,共6页Iron Steel Vanadium Titanium

摘　　要：用数值模拟方法研究了有无电磁制动时结晶器内钢液的冶金行为。结果表明:应用电磁制动使结晶器内钢液的速度得到很强的抑制,自由液面最大速度从0.17 m/s减小到0.02 m/s;铸坯内部局部区域钢液温度升高,表面坯壳温度降低;窄面和铸坯角部坯壳有些变厚,宽面坯壳厚度稍稍变薄。The numerical simulation study on metallurgical behavior of liquid steel in the slab mold with and without electromagnetic brake is carried out.The numerical simulation results show that in the presence of EMBR,the velocity of liquid steel in the slab mold is reduced largely with the highest velocity of meniscus reducing from 0.17 m/s to 0.02 m/s.The temperature of liquid steel in some part of casting blank gets higher,with a lower temperature of solidification shell.The shell gets thicker at narrow sides and the corner while gets thinner at wide sides.

关 键 词：电磁制动 结晶器 铸坯 流动 传热凝固 数值模拟 

分 类 号：TF777.1[冶金工程—钢铁冶金]