Direct chill casting of aluminum-lithium alloys

Details Direct chill casting of aluminum-lithium alloys Direct chill casting of aluminum-lithium alloys

1986-04-11

1987-12-01

Batten, Jr., J. Reed

Metal founding

Process

Including recycling of process material

164487, B22D 1124

Patent

active

047097400

ABSTRACT:
A method for continuously casting lithium-containing alloys by a direct chill process includes cooling the alloy to form a continuous ingot having a solid shell and further cooling the ingot by direct chill with an organic coolant. The organic coolant in one aspect includes a modified hydrocarbon fluid, e.g., ethylene glycol, having less than a predetermined moisture content. The method includes recirculating coolant while controlling moisture content. An ingot formed by the present invention provides small dendrite arm spacing in a relatively large size ingot.

REFERENCES:
patent: 2515284 (1950-07-01), Zeigler et al.
patent: 4000625 (1977-01-01), Beerens et al.

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