Vaccum refining method utilizing induction heater around a ladle

Details Vaccum refining method utilizing induction heater around a ladle Vaccum refining method utilizing induction heater around a ladle

1991-11-21

1992-11-03

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266207, C21C 710, C22B 400

Patent

active

051605317

ABSTRACT:
A vacuum refining method for refining a mass of molten metal which is obtained from a steel-making furnace or a steel-making secondary smelting furnace, which method includes the steps of: pouring the molten metal into a ladle; setting the ladle inside an induction heater which is provided in an enclosed container; evacuating the enclosed container; and induction-heating the molten metal in the ladle by the induction heater while the enclosed container is kept under vacuum, so as to refine the molten metal. An apparatus for practicing this refining method is also disclosed.

REFERENCES:
patent: 3185565 (1965-05-01), Taylor
patent: 4743302 (1988-05-01), Dumesnil et al.
patent: 4762554 (1988-08-01), Lazcono-Navarro
patent: 4894087 (1990-01-01), Finkl
patent: 4945071 (1990-07-01), Friesen et al.
patent: 5013697 (1991-05-01), Akhtar

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