During the ingot casting process,the parametric changes of the molten steel pouring process often cause both ingot surface and internal quality defects. With the increasingly wide application of computers in industrial technology,numerical simulations of the molten steel pouring process enable predictions of the defects that will arise during the pouring and solidification process,especially for the molten steel flowduring the early stages of casting. In addition,using a computer to simulate the casting process of a 40 t ingot and solidification can prevent many defects. The simulation results indicate that controlling the pouring speed to less than 80 kg / s,hanging the casting powder in a mold with the hanging height maintained at 100-150 mm,and controlling the taper angle of the mold brick outlet to a suitable level can reduce the probability of slag entrapment and improve the internal and surface quality of the ingot.
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