Electrode immersion depth determination and control in...

Details Electrode immersion depth determination and control in... Electrode immersion depth determination and control in...

2007-02-20

2007-02-20

Hoang, Tu (Department: 2832)

Industrial electric heating furnaces

Electroslag remelting device

Power supply system

C373S050000, C373S105000

Reexamination Certificate

active

10853477

ABSTRACT:
An apparatus and method for controlling an electroslag remelting furnace comprising adjusting electrode drive speed by an amount proportional to a difference between a metric of electrode immersion and a set point, monitoring impedance or voltage, and calculating the metric of electrode immersion depth based upon a predetermined characterization of electrode immersion depth as a function of impedance or voltage.

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patent: 5737355 (1998-04-01), Damkroger
patent: 6115404 (2000-09-01), Bertram et al.

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