采用ANSYS有限元软件对空心管异相位电磁连铸中电磁场、力场的分布进行了模拟。结果表明：异相位磁场作用下，铸管中磁感强度高而且分布均匀；壁厚中部的金属溶体受到沿径向的电磁推力，向外结晶器方向流动；石墨环附近的金属溶体和初凝壳受到电磁斥力的作用，可以避免“抱芯”、减少摩擦、抑制偏析瘤形成进而提高铸管表面质量。
Numerical simulation of electromagnetic field and force field during electromagnetic continuous casting in hollow billets was carried out by ANSYS software in the paper. The simulation results show that the magnetic flux density is strong and distribution is even in tube ingot in out-phase electromagnetic field; Metal melt in the central section of the wall flows outer mold due to the electromagnetic force; Metal melt and initial skull near graphite were pushed by the electromagnetic force, which can avoid “hold core”, decrease friction, restrain segregation burl, and increase surface quality.
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