H - Electricity – 05 – B
Patent
H - Electricity
05
B
307/21
H05B 7/12 (2006.01) C25C 3/12 (2006.01) C25C 7/02 (2006.01) F27B 3/24 (2006.01) H05B 7/06 (2006.01) H05B 7/085 (2006.01) H05B 7/101 (2006.01)
Patent
CA 1190578
ABSTRACT OF THE DISCLOSURE An arc furnace electrode, more particularly for the production of electric steel, comprises a top portion of metal and a replaceable bottom portion of consumable or slowly consumable material interconnected by means of a screw nipple or the like. The top portion is provided with a feed duct and a return duct and has a protective covering, at least partially and more particularly in its bottom region. The protective covering is represented by a detachably surmounted sheath of resistant material which is electrically conductive. The sheath can be subdivided into individual segments and the construction of screw- mounted units with internally disposed recesses to accommodate elastic and electrically conductive materials especially advantageous properties.
394320
Bauer Georg
Dung Herbert
Haremsa Johannes
Lauterbach-Dammler Inge
Muhlenbeck Josef
Arc Technologies Systems Ltd.
Gowling Lafleur Henderson Llp
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