Reduction casting method

Details Reduction casting method Reduction casting method

2005-08-23

2005-08-23

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping liquid metal against a forming surface

C164S067100, C164S072000

Reexamination Certificate

active

06932142

ABSTRACT:
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° 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.

REFERENCES:
patent: 6745816 (2004-06-01), Ban et al.
patent: 6745817 (2004-06-01), Ban et al.
patent: 1 145 787 (2001-10-01), None
patent: 1 153 678 (2001-11-01), None
patent: 2000-280063 (2000-10-01), None
patent: 2000280063 (2000-10-01), None
European Search Report dated May 19, 2004.

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