PROCESS FOR THE CASTING OF MOLTEN ALLOY

摘要

A novel process for the casting of molten alloy which is freed from the adverse effects brought about by the solidification of slag in drawing an ingot and can attain the inhibition of a solidified steel ingot from segregation and grain refinement and which can give a steel ingot improved in surface texture. Namely, a process for the casting of molten alloy which comprises pouring a molten alloy at a casting rate of 0.3 m/min or below into a solidification space enclosed by the inside wall of a water-cooled mold (2) and holding slag (1) therein from a container (10) holding a molten alloy (11) therein to solidify the molten alloy while forming a molten metal pool (4), and drawing an ingot (5) vertically from the bottom of the water-cooled mold depending on the pouring rate of the molten alloy, wherein a heat insulator (3) for inhibiting the extraction of heat from slag which insulator has such an inside wall shape as to form an inside wall continuous with the inside wall of the water-cooled mold is placed in the upper section of the mold.