Controlled addition of lithium to molten aluminum

Details Controlled addition of lithium to molten aluminum Controlled addition of lithium to molten aluminum

1987-06-22

1988-08-02

Rutledge, L. Dewayne

Alloys or metallic compositions

Aluminum base

420590, 266 95, C22C 100, C22C 2100

Patent

active

047612665

ABSTRACT:
Lithium feed to an aluminum-lithium alloy production system is achieved at a highly controlled rate by advancing a plunger at a predetermined volumetric rate into a body of molten lithium retained in a holding vessel to displace the lithium toward an overflow port through which it is fed into a mixing vessel where it is combined with molten aluminum. Control of the aluminum feed rate is achieved by maintaining a constant head height upstream of an orifice. The thus metered streams of molten lithium and aluminum are then combined in a vortex bowl, whose outlet is then fed to a casting station.

REFERENCES:
patent: 2260226 (1941-10-01), Kirkham
patent: 3128912 (1964-04-01), Cash
patent: 4078706 (1978-03-01), Hanuszczak
patent: 4191563 (1980-03-01), Smartt et al.
patent: 4248630 (1981-02-01), Balmuth
patent: 4556535 (1985-12-01), Bowman et al.

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