组合式电磁连铸结晶器内夹杂物运动的数值模拟  

Simulation of Movement of Inclusions in Mold with Hybrid Magnetic Fields

作　　者：钱忠东[1] 李本文[1] 王恩刚[1] 赫冀成[1] 

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2002年第6期553-556,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目 (5 973 40 80 );国家重点基础研究发展规划项目 (G19980 615 10 )

摘　　要：采用数值模拟方法对组合式电磁连铸结晶器内夹杂物的运动轨迹和夹杂物在铸坯内的最终分布状态进行了模拟·对静磁场磁感应强度和两种磁场的不同相对位置对夹杂物分布状态的影响进行了分析·分析结果表明 :随着静磁场磁感应强度的增强 ,夹杂去除率提高 ,皮下夹杂减少 ,铸坯内的夹杂物分布变得均匀 ;当静磁场由水口中心逐渐下移时 ,夹杂去除率降低 ,皮下夹杂增多 。The movement and the final distribution of inclusions in the mold with or without hybrid magnetic fields were simulated. The influence of the static magnetic flux density and the position of static magnetic filed on the distribution of the inclusions inside the billet and on the inclusion removal rate were analyzed in the number of being captured by the shell. With the increasing of the static magnetic flux density,the removal rate increases,and the rate of being caputred decreases but the inclusions inside the billet are distributed more uniformly. With the changing of the position of static magnetic field,the removal rate decreases but the rate of being captured increases. The change of position showes no influence on the distribution of inclusions inside the billet.

关 键 词：电磁连铸 组合式结晶器 夹杂物 数值模拟 运动轨迹 

分 类 号：TF777[冶金工程—钢铁冶金]