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通道式感应加热中间包为精确控制结晶器内钢液的过热度提供了可能,有必要使用ANSYS和CFX软件计算通道式感应加热中间包电磁场、流场及温度场分布来揭示中间包内电磁冶金过程。计算结果表明:通道内的感生电流密度大于注入室和分配室内的感生电流密度;在中间包通道内磁场和电磁力的不均匀分布促使钢液旋转流动,且在通道内钢液出现双漩涡现象;但是感应加热中间包内钢液温度均匀,其中间包水口截面最高温度与最低温度仅差1 K;无感应加热装中间包进出口温降可达到7 K,采用感应加热技术能够使中间包温降得到补偿。
Channel induction heating tundish to accurately control the degree of superheat in the mold liquid may provide the necessary use of ANSYS and CFX software to calculate the channel induction heating tundish electromagnetic field, flow field and temperature field distribution to reveal the tundish electromagnetic metallurgy process. The results show that the induced current density in the channel is larger than the induced current density in the injection chamber and the distribution chamber. The uneven distribution of the magnetic field and electromagnetic force in the tundish channel causes the liquid steel to rotate and flow, However, the temperature of liquid steel in the induction tundish is even, and the maximum temperature and the minimum temperature of the cross section of the tundish are only 1 K; the temperature drop of the inlet and outlet of the tundish without induction heating can reach 7 K, and the induction heating technique can make Tundish temperature compensation.