Industrial electric heating furnaces – Induction furnace device – For charging or discharging
Patent
1984-03-05
1986-06-10
Godici, Nicholas P.
Industrial electric heating furnaces
Induction furnace device
For charging or discharging
164437, 164483, 164488, 373146, 373159, H05B 500
Patent
active
045947236
ABSTRACT:
A method for continuously pouring molten metal in an initially substantially unfilled tundish having a channel-type inductor having a channel opening into the bottom portion of the tundish, is done by starting the pourings and the continuous sequential steps of applying power to the inductor when its channel is first covered by the poured metal to form a melt level and the static pressure of the metal is low and while increasing the power rapidly so as to cause incipient pinching in the channel and then momentarily rapidly reducing the power so as to prevent pinching; as the metal level further increases so that the metal's static pressure further increases, again increasing the power rapidly so as to again cause incipient pinching in the channel and then again momentarily rapidly reducing the power so as to prevent pinching; and continuing these sequential steps until the tundish is filled.
REFERENCES:
patent: 2768413 (1956-10-01), Alexanderson
patent: 2937789 (1960-05-01), Tama
patent: 3552478 (1971-01-01), Lauener
patent: 3991263 (1976-11-01), Folgero et al.
patent: 4441191 (1984-04-01), Fredrikson et al.
Folgero Kare
Kollberg Sten
Asea AB
Batten, Jr. J. Reed
Godici Nicholas P.
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