Industrial electric heating furnaces – Arc furnace device – Ingot remelting
Patent
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.
Grose Stephen M.
Williamson Rodney L.
Zanner Frank J.
Hoang Tu
Libman George H.
Sandia Corporation
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