DC arc furnace operation indicating system

Details DC arc furnace operation indicating system DC arc furnace operation indicating system

1978-02-22

1979-07-17

Envall, Jr., R. N.

H05B 7148

Patent

active

041616189

ABSTRACT:
A DC arc furnace operation indicating system provides an indication and possibly a signal or control when during start-up the starting electrode does not make good electrical contact with a furnace charge of solid metal pieces and also thereafter when the shift is made to the melt electrode and it is not in a good electrical connection with the melt after the starting electrode is inactivated preparatory to the furnace going into normal production operation.

REFERENCES:
patent: 3835230 (1974-09-01), Valchev et al.
patent: 3868473 (1975-02-01), Dimick

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