Casting aluminium alloys

Details Casting aluminium alloys Casting aluminium alloys

B - Operations, Transporting

22

D

22/166

B22D 21/04 (2006.01) B22D 11/11 (2006.01)

Patent

CA 1215814

A B S T R A C T In the casting of ingots of aluminium alloys, containing a readily oxidisable 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 mould wall at the metal meniscus/mould wall interface.

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