Method of manufacturing zinc alloy ingot

Details Method of manufacturing zinc alloy ingot Method of manufacturing zinc alloy ingot

2007-02-27

2007-02-27

King, Roy (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

Reexamination Certificate

active

10464072

ABSTRACT:
A molten zinc alloy, which contains 4–22 mass % Al, 1–7 mass % Mg and optionally one ore more of Ti, B and Si at very small ratios, is held at a temperature Thhigher than (a solidification-beginning temperature Ts.b.+85° C.) for homogenization, and then cooled down to a temperature Tcequal to (Ts.b.+20–65° C.). After the molten alloy is poured in a mold, it is naturally cooled and solidified to an ingot, while its upper part is being heated. Once an upper surface of the zinc alloy in the mold begins to solidify, it is optionally cooled with water. The produced ingot has a structure without cracks or cavities, so that it is safely fed to a molten pool for replenishment.

REFERENCES:
patent: 3505043 (1970-04-01), Lee et al.
patent: 4439397 (1984-03-01), Dreulle
patent: 58-177446 (1983-10-01), None
patent: 10-226865 (1998-08-01), None
patent: 10-306357 (1998-11-01), None
patent: 2002-172457 (2002-06-01), None

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