Generally speaking, refractories casting powder has two main functions in continuous casting process, stabilize continuous casting technology to make the process run smooth and improve the surface and subcutaneous quality of billets. Casting powder has five effects in crystallizer:
1.Thermal insulation in crystallizer;
2.To prevent the molten steel in crystallizer from being reoxidized;
3.Casting powder has the ability to absorb the impurities floating on the molten steel;
4.Casting powder should have good lubrication effect;
5.Casting powder should have good heat conducting controlling effect.