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利用有限元软件ANSYS对软接触电磁连铸结晶器内磁场进行三维数值模拟,分析了结晶器内钢液面高度对磁场及电磁力分布的影响.结果表明:钢液使得磁感应强度集中在钢液的侧表面;当钢液面低于线圈上沿时,钢液中磁感应强度的最大值出现在钢液上表面附近,并沿拉坯方向逐渐递减;当钢液面高于线圈上沿时,随着钢液面的升高磁感应强度的最大值向线圈中部移动;钢液侧表面所受电磁力的分布趋势与磁感应强度的分布趋势基本一致.
The finite element software ANSYS was used to simulate the magnetic field in the soft contact electromagnetic continuous casting mold and the influence of molten steel surface height on the magnetic field and electromagnetic force distribution was analyzed.The results show that the molten steel makes the magnetic induction intensity concentrated in the liquid steel When the molten steel surface is lower than the upper edge of the coil, the maximum value of the magnetic induction intensity in the molten steel occurs near the upper surface of the molten steel and gradually decreases along the direction of the drawn steel. When the molten steel surface is higher than the upper edge of the coil, With the increase of the molten steel surface, the maximum value of the magnetic flux density moves toward the middle of the coil. The distribution tendency of the electromagnetic force on the liquid side of the molten steel is basically the same as that of the magnetic flux density.