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Constant voltage electro-slag remelting control

Patent ·
OSTI ID:392637

A system for controlling electrode gap in an electro-slag remelt furnace has a constant regulated voltage and an electrode which is fed into the slag pool at a constant rate. The impedance of the circuit through the slag pool is directly proportional to the gap distance. Because of the constant voltage, the system current changes are inversely proportional to changes in gap. This negative feedback causes the gap to remain stable. 1 fig.

Research Organization:
AT&T Corporation
DOE Contract Number:
AC04-76DP00789
Assignee:
Sandia Corp., Albuquerque, NM (United States)
Patent Number(s):
US 5,568,506/A/
Application Number:
PAN: 8-442,545
OSTI ID:
392637
Country of Publication:
United States
Language:
English

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