Industrial electric heating furnaces – Electroslag remelting device – Power supply system
Patent
1997-01-15
1999-07-27
Hoang, Tu Ba
Industrial electric heating furnaces
Electroslag remelting device
Power supply system
373 67, 373 70, 373105, H05B 360, H05B 7148
Patent
active
059302844
ABSTRACT:
A method and apparatus for controlling vacuum arc remelting (VAR) furnaces by estimation of electrode gap based on a plurality of secondary estimates derived from furnace outputs. The estimation is preferably performed by Kalman filter. Adaptive gain techniques may be employed, as well as detection of process anomalies such as glows.
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Beaman Joseph J.
Hysinger Christopher L.
Melgaard David K.
Williamson Rodney L.
Hoang Tu Ba
Libman George H.
Sandia Corporation
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