A Process for Developing Continuous Casting Mould-Powder for Steel Industries

773-780For selecting the right material for continuous casting mould-powder for steel industries, the importance of property-composition relationship of a mould-powder is outlined. The chemical composition of three varieties of slags (TISCO, RSP and Phosphatic) are described. Typical compositions of some commercially successful mould powders are discussed. The casting parameters, such as viscosity and melting rate of the powders are described. The inclusion removal property of the powders is outlined. It is mentioned that these inclusions are predominantly oxides of alumina and can be removed by controlling basic/acid ratio of the powder itself. The importance of surface spreadability of the powders is indicated