Casting in an exothermic reduction atmosphere

Details Casting in an exothermic reduction atmosphere Casting in an exothermic reduction atmosphere

1986-08-20

1989-09-26

Godici, Nicholas P.

Metal founding

Process

Shaping liquid metal against a forming surface

164475, B22D 1100

Patent

active

048693120

ABSTRACT:
An apparatus and method for casting metal strip includes a moving chill body that has a quench surface. A nozzle mechanism deposits a stream of molten metal on a quenching region of the quench surface to form the strip. The nozzle mechanism has an exit portion with a nozzle orifice. A depletion mechanism supplies a reducing gas to a depletion region located adjacent to and upstream from the quenching region. The reducing gas reacts exothermically to lower the density to provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.

REFERENCES:
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patent: 3861450 (1975-01-01), Mobley
patent: 3862658 (1975-01-01), Bedell
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patent: 4142571 (1979-03-01), Narasimhan
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patent: 4202404 (1980-05-01), Carlson
patent: 4262734 (1981-04-01), Liebermann
patent: 4282921 (1981-08-01), Liebermann
patent: 4301855 (1981-11-01), Suzuki

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