Fluid-cooled holder for an electrode tip

H - Electricity – 05 – B

Patent

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307/24

H05B 7/12 (2006.01) H05B 7/101 (2006.01)

Patent

CA 1131278

ABSTRACT OF THE DISCLOSURE Fluid-cooled holder for the tip of an electrode of an electric arc smelting furnace, having a cylindrical holding portion secured to an electrode support arm, a metal cooling system secured to the holding portion and carrying the electrode current and which at the free end carries a screw-threaded portion for screwing on the electrode tip, and also having a tubular heat screen means disposed around the cooling system at a spacing. The heat screen means comprises a metal tube electrically insulated with respect to the current-carrying cooling system and which is sufficiently cooled, by way of a refractory substance between the cooling system and the metal tube, for the temperature of the metal tube to be kept to a value below the softening temperature of the material of the metal tube, when the holder is used in the electric arc smelting furnace.

337846

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