Mould powders significantly influence the correct course of steel continuous casting process, the surface quality and subsurface structure of round billets. For many users of continuous casting equipment the choice of proper mould powder for the local condition of casting process is still the essential problem. The solution of such problem could be empirical equations (worked out in the last years), which with more and more accuracy enable to determine the values of physicochemical parameters of mould powders for the parameters of casting process of specific steel grade. The article presents the way of using the empiric equations to determine the physicochemical properties of mould powders dedicated for casting the round billets (Ø 170 mm) from C45 steel and their verification in industry.Keywords: Mould powder, casting process, physicochemical properties
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