Sn-32Pb-52Bi alloy was used to simulate the molten steel for static thermal simulation experiments to understand effects of varied liquid level and varied power on meniscus shape in mold of main frequency soft-contact electromagnetic continuous casting for round billets with 1500Hz. The results reveal that main frequency magnetic field can more easily pass the slit of segment mold to exert on the liquid metal due to the more strong penetration capability than that of high frequency magnetic field

There fore compared with that in high frequency magnetic field with high power

meniscus height can be generated in the main frequency magnetic field with low power. Meniscus height is increased with increasing in power

which aggravates the fluctuation of surface of liquid metal. Coil position should be set nearby the top of mold as possible

which is beneficial for the enlargement of meniscus shape and improvement of meniscus stability. In addition

pouring surface of liquid metal should be controlled as possible below the center of coil height during producing billets.