Direct chill casting of aluminum-lithium alloys

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

1983-11-10

1986-09-09

Godici, Nicholas P.

Metal founding

Process

Including recycling of process material

164472, 164487, B22D 1104, B22D 1107

Patent

active

046102957

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 disclosed method provides small dendrite arm spacing in a relatively large size ingot.

REFERENCES:
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patent: 2515284 (1950-07-01), Zeigler et al.
patent: 2915390 (1959-12-01), Criner
patent: 3381741 (1968-05-01), Gardner
patent: 3600239 (1971-08-01), DeForest et al.
patent: 3976119 (1976-08-01), Miller
patent: 4000625 (1977-01-01), Beerens et al.
patent: 4157728 (1979-06-01), Mitamura et al.
patent: 4243439 (1981-01-01), Rauch
patent: 4473106 (1984-09-01), Sautebin

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