Casting in a exothermic reduction atmosphere

Details Casting in a exothermic reduction atmosphere Casting in a exothermic reduction atmosphere

1990-12-13

1991-08-27

Lin, Kuang Y.

Metal treatment

Stock

Amorphous, i.e., glassy

164463, B21C 3700

Patent

active

050430297

ABSTRACT:
An apparatus and method for casting metal strip include 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 provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.

REFERENCES:
patent: 4339508 (1982-07-01), Tsuya et al.
patent: 4515870 (1985-05-01), Bose et al.
patent: 4676298 (1987-06-01), Liebermann

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