metallurgical casting isotherm powder:
Casting isotherm powder is added on top of the steel melt inside the ladle. It then covers the top of the melt, mostly on melted, and serves the following purposes:
- Thermal insulation by reducing the escaped heat from the steel melt surface. This, in turn, leads to increased refractory durability and improved casting by increasing controllability.
- Preventing further oxidation of steel.
- Absorbing the non-metallic impurities.