Treating a stream of molten metal

Details Treating a stream of molten metal Treating a stream of molten metal

1977-02-22

1978-07-18

Spicer, Jr., Robert L.

Metal founding

Process

Shaping liquid metal against a forming surface

164154, 75 58, 75 59, B22D 1110

Patent

active

041009592

ABSTRACT:
Molten steel pouring from a ladle into a tundish is surrounded by a vessel which is pressurized to maintain an excess pressure of an inert gas and/or a gas or vapor of a material that treats the steel, e.g., for deoxidizing, desulfurizing and/or other cleansing action. The excess pressure per se inhibits any reoxidation. Reactant material is fed to the chamber at a rate to maintain the excess pressure and/or to ensure sufficient presence of reacting material commensurate with the amount of steel passing through.

REFERENCES:
patent: 2997386 (1961-08-01), Ferchtinger
patent: 3295960 (1967-01-01), Parlee et al.

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