Industrial electric heating furnaces – Arc furnace device – Electrode
Patent
1984-08-10
1986-09-02
Envall, Jr., Roy N.
Industrial electric heating furnaces
Arc furnace device
Electrode
H05B 708, H05B 712
Patent
active
046100156
ABSTRACT:
An arc electrode assembly comprises a water-cooled metal shaft and a consumable active portion, being interconnected by means of a screw nipple. The metal shaft is surrounded below its clamping area by a protective jacket being detachably arranged about the metal shaft. Between the jacket and the metal shaft a layer of electrically insulating refractory material is arranged which is cooled by the cooling system of the jacket. The protective jacket comprises at least one steel tube which is provided for the passage of a cooling medium. The steel pipe(s) may additionally be surrounded by refractory or slag material or may directly be embedded into such material.
REFERENCES:
patent: 2960557 (1960-11-01), Beecher et al.
patent: 3392227 (1968-07-01), Ostberg
Hill Derek
Lauterbach-Dammler Inge
Taube Tom
Zollner Dieter
Arc Technologies Systems Ltd.
Envall Jr. Roy N.
Freer John J.
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