Casting aluminium alloys

Details Casting aluminium alloys Casting aluminium alloys

1987-07-28

1989-08-22

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164473, B22D 1100

Patent

active

048586749

ABSTRACT:
In the casting of ingots of aluminium alloys, containing a readily oxidizable component, in an open-ended mould, a space is enclosed over the molten metal surface adjacent the mould wall and is filled with an inert gas. The enclosure is maintained by a baffle which dips into the molten metal surface close to the baffle. The molten metal surface between the baffle and the mould wall is preferably covered by a layer of an oxide-dissolving flux, which cleanses the meniscus at the metal meniscus/mould wall interface.

REFERENCES:
patent: 3746070 (1973-07-01), Hill
patent: 4157728 (1979-06-01), Mitamura et al.
patent: 4273180 (1981-06-01), Tertishniker et al.
patent: 4355679 (1982-10-01), Wilkins
American Society for Metals "Forging and Casting Handbook", 8th ed., pp. 396 & 397.

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