Continuous Casting Powders and Granules Refractory Materials Iron and steel smelting​

Product introduction  

The Mould Powders are composed essentially of CaO-Al₂O₃-SiO₂ with addition of fluxing agents and carbon.

Mold Powders have different functions:

• Lubrication between the solidifying strand and mould wall
• Control of heat transfer between the strand and mould
• Thermal insulation of the liquid steel surface
• Prevention of re-oxidation
• Inclusion absorption

The above functions are controlled by the following properties:

• Basicity
• Viscosity
• Melting speed
• Melting behaviour
• Crystallization

The choice of a mould powder depends on:

• Mould size
• Oscillation conditions
• Casting speed
• Steel grade