Controlling electrode gap during vacuum arc remelting at low mel

Details Controlling electrode gap during vacuum arc remelting at low mel Controlling electrode gap during vacuum arc remelting at low mel

1995-04-21

1997-04-15

Hoang, Tu

Industrial electric heating furnaces

Arc furnace device

Ingot remelting

373104, H05B 7148

Patent

active

056217510

ABSTRACT:
An apparatus and method for controlling electrode gap in a vacuum arc remelting furnace, particularly at low melting currents. Spectrographic analysis is performed of the metal vapor plasma, from which estimates of electrode gap are derived.

REFERENCES:
patent: 4435818 (1984-03-01), Stenzel et al.
patent: 4450570 (1984-05-01), Weingartner et al.
patent: 4578795 (1986-03-01), Fisher et al.
patent: 4881239 (1989-11-01), Stenzel et al.

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