Process for the continuous casting of metal, in particular of steel into bloom and billet cross-sections
AssigneeConcast Standard AG
InventorsFranciszek Kawa, Adrian Stilli, Adalbert Roehrig
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Abstract
Molten steel is continuously teemed into a casting passage to establish a bath of molten steel in the passage. The molten steel is partially solidified in the casting passage to form a strand having a plurality of bulges which are uniformly distributed circumferentially of the strand. The strand is continuously withdrawn from the casting passage and the bulges are deformed during strand withdrawal so as to reduce bulge size. The amount of deformation is regulated by varying the bath level as a function of one or more casting parameters.
Claims16
A continuous casting method, comprising the steps of admitting molten metal into a casting passage to establish a bath of said molten metal in said passage, wherein a cross-section of an inlet is larger than that of an outlet, said bath having a variable level;
- cooling said molten metal in said passage, the cooling step including at least partially solidifying said molten metal to form a continuously cast strand having a plurality of bulges which are distributed substantially uniformly circumferentially of said strand;
- conveying said strand through said passage;
- deforming said bulges in said passage by a variable amount during the conveying step;
- and regulating said amount as a function of at least one of a set of casting parameters including the composition of said molten metal, the speed at which said strand is conveyed through said passage, the superheat of said molten metal, the coefficient of friction of said strand in said passage, and the force with which said strand is conveyed through said passage, the regulating step comprising adjusting said level.
Dependencies are inferred from the claim text.