Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1974-11-13
1976-03-23
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
13 9ES, 164252, C22B 400, H05B 300, B22D 2702
Patent
active
039458180
ABSTRACT:
Molten slag is introduced through the lower portion of a crucible device into the bottom of the remelting zone in an electroslag remelting process using single or plural consumable electrodes in an amount sufficient to achieve a predetermined depth in the remelting zone. The achievement of the predetermined depth is signalled when current flows as a result of the slag level contacting and closing a circuit through an energized electrode disposed in the remelting zone. The crucible has a bottom plate at its lower end, the bottom plate has a recess in its top side and a piece of metal is inserted in the recess to provide electrical contact between the piece of metal and the bottom plate the piece of metal in the recess in the bottom plate is connected by a center tap line to an electric current source which passes through the electrode(s), the slag and the piece of metal during initial remelting.
REFERENCES:
patent: 3129473 (1964-04-01), Veil
patent: 3608618 (1971-09-01), Maskall
patent: 3610318 (1968-01-01), Simmons
patent: 3842897 (1974-10-01), Paton
Emelianenko July Georgievich
Kljuev Mikhail Markovich
Latash Jury Vadimovich
Medovar Boris Izrailevich
Paton Boris Evgenievich
Patent Management, Inc.
Rosenberg Peter D.
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