组合式电磁连铸结晶器内夹杂物运动的数值模拟

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,但对内部夹杂物的分布状态影响不明显

Simulation of Movement of Inclusions in Mold with Hybrid Magnetic Fields

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.