H - Electricity – 05 – B
Patent
H - Electricity
05
B
307/24
H05B 7/07 (2006.01) H05B 7/101 (2006.01) H05B 7/12 (2006.01) H05B 7/14 (2006.01)
Patent
CA 1110685
ABSTRACT OF THE DISCLOSURE: Electrode for electric arc furnaces, in particular for production of iron and steel, comprising: a liquid-cooled upper portion adapted to be inserted into an electrode holder, a lower portion forming an electrode tip and being detachably fastened to upper portion, the detachable electrode tip being a consumable member, the upper portion including a concuit system for cooling liquid protected by a fire-proof material, the conduit system being adapted to conduct the arc current. In order to increase the resistivity against mechanical stresses exerted by scrap heat conducting projections covered by the fire-proof material are provided on the outer surface of the conduit system facing the furnace chamber, the projections having at least one region with reduced cross-section. Further a nipple fastening the electrode tip to the upper portion, and means for producing a magnetic field and for causing the arc on the electrode tip to move are provided, the means being disposed in the lower part of the upper portion of the elec- trode or in the nipple and effect a reduction of the consumption of the consumable electrode tip.
304799
Elsner Emil
Kasper Rudolf
Schwabe William
Korf-Stahl Ag
Robic Robic & Associes/associates
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