论文部分内容阅读
为了探讨组合磁场净化钢液的机理,采用颗粒轨道模型对组合式结晶器内气泡的运动轨迹进行了模拟,对静磁场磁感应强度(0～0.26T)及静磁场与交变磁场的不同相对位置对气泡去除率的影响进行了分析。计算结果表明:随着静磁场磁感应强度的增强,气泡去除率提高;两磁场距离由270mm增大到420mm,大气泡的去除率逐渐提高,小气泡的去除率逐渐降低。进入上返流的气泡数量和气泡在液面处的停留时间影响气泡去除率。
In order to explore the mechanism of combined magnetic field to purify molten steel, the particle orbit model was used to simulate the movement of bubbles in the combined mold. The magnetic induction intensity (0 ~ 0.26T) and the relative position of static magnetic field and alternating magnetic field The effect of bubble removal rate was analyzed. The calculation results show that the bubble removal rate increases with the increase of the magnetic induction intensity of the static magnetic field. The distance between the two magnetic fields increases from 270mm to 420mm. The removal rate of large bubbles gradually increases and the removal rate of small bubbles gradually decreases. The amount of bubbles entering the upper regurgitation and the residence time of the bubbles at the liquid level affect the bubble removal rate.