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Al的电磁铸造为半连续铸造过程，它的数学模型是空间非稳态非齐次热传输方程,提出并证明了以t时刻板坯占有的空间作为计算域，采用三维非稳态热传导方程，计算下一时刻（t＋△t）的温度场，并将温度场的位置随拉坯速度v的方向移动v△t，然后．将顶部空缺的v△t空间由浇注的金属熔液充满，此时的温度场即t＋△t时刻板坯行进位置的温度场.由于三维非稳态热传导方程具有稳定收敛的计算格式，所编制的软件可通用于三维非稳态热传输过程.模拟了1860mm×510mmAl合金大板坯，与文献已有的实测结果相比较，基本吻合.模拟结果表明，在板坯表面液柱高度相同的情况下．拉坯速度越大，液穴越深
The electromagnetic casting of Al is a semi-continuous casting process. Its mathematical model is the non-homogeneous heat transfer equation in space. The space occupied by the slab at time t is taken as the computational domain, and the three-dimensional unsteady heat conduction equation is used. The temperature field at the next moment (t + Δt) is calculated and the position of the temperature field is shifted by v Δt in the direction of the casting speed v. The v vac space at the top is filled with molten metal and the temperature field at this time is the temperature field at the slab travel position at t + Δt. Since the three-dimensional unsteady heat conduction equation has a stable convergence calculation formula Of the software can be generalized to the three-dimensional unsteady heat transfer process.The simulation of 1860mm × 510mmAl alloy large slab, and the literature has been compared to the actual results are basically consistent.The simulation results show that in the slab surface liquid column height the same situation under. The larger the casting speed, the deeper the liquid point