| 摘要 |
A reduction casting method includes the steps of: pouring a molten metal into a cavity of a molding die; and performing casting while reducing an oxide film formed on a surface of the molten metal by allowing the molten metal and a reducing substance to come into contact with each other in the cavity. On this occasion, the molten metal is poured into the cavity in a state in which the molding die is forcibly cooled by a cooling device, thereby being rapidly cooled. Further, on this occasion, a solidification speed at which the molten metal is rapidly cooled is allowed to be 600 DEG C/min or more. Still further, on this occasion, the molten metal is filled into the cavity in a filling time of from 1.0 second to 9.0 seconds. <IMAGE> |
