Particulate slagging composition for the continuous casting of steel and process for continuously casting steel with such a composition

摘要

A particulate slagging composition of glass network formers and fluxing agents therefor serving as a protective layer on the top of a pool of molten steel at the upper end of an open-ended continuous casting mold. Such particulate sagging composition is characterized by the absence of lithium, the inclusion of at least about 1/2 percent potassium measured as potassium oxide, and the flowidity and fusion range upon melting suitable for the continuous casting of a steel.