Industrial electric heating furnaces – Electroslag remelting device – Power supply system
Patent
1995-09-21
1998-04-07
Hoang, Tu B.
Industrial electric heating furnaces
Electroslag remelting device
Power supply system
373105, 373108, H05B 360
Patent
active
057373558
ABSTRACT:
An apparatus and method for controlling an electroslag remelting furnace, imposing a periodic fluctuation on electrode drive speed and thereby generating a predictable voltage swing signal. The fluctuation is preferably done by imposition of a sine, square, or sawtooth wave on the drive dc offset signal.
REFERENCES:
patent: 4131754 (1978-12-01), Roberts
patent: 4303797 (1981-12-01), Roberts
patent: 5331661 (1994-07-01), Maguire et al.
patent: 5568506 (1996-10-01), Schlienger
Hoang Tu B.
Libman George H.
Sandia Corporation
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