Numerical simulation of the plasma heating process in a six-strand tundish

On the basis of coupled flow and heat transfer calculation, the plasma heating simulating results of argon-blowing on the bottom of heating area and non-argon-blowing in the six-strand tundish were analyzed respectively. The result shows that the temperature of the upper part of liquid steel in the heating area is very high in the case of non-argon-blowing, which will result in the exfoliation of the refractory, especially the refractory on the tundish cover. This shortcoming can be avoided if the tundish with plasma heating was blown from bottom.