Abstract: In order to study the influence of gas curtain on the transfer behavior in the induction heating tundish, based on an actual one-strand channel-type induction heating tundish, a threedimensional unsteady mathematical model was established by numerical simulation to study the influence of gas curtain on flow, heat transfer and inclusion transfer behavior in the induction heating tundish. The results show that with the use of gas curtain, the molten steel flow in the discasting chamber of induction heating tundish is more reasonable, and the composition of the liquid steel is more uniform. This phenomenon is more beneficial to inclusion removal. The temperature field in the discasting zone is more evenly distributed, the temperature difference does not exceed 1 K, and the low temperature regions decrease further. The inclusion removal rate of induction heating tundish with gas curtain is much higher than that without air curtain, which has improved by about 41 %.

Key words: induction heating tundish, gas curtain, flow, heat transfer, inclusion removal