Patent ID: 6452956
Filing Date: 2002-09-17
Classification: C21C,F27B,H05B,Y02P

Abstract:
A combination pre-baked and self-baking electrode for a smelting furnace comprising:an elongate casing including a plurality of spaced, inwardly projecting ribs extending radially from an inner surface of the casing towards the centre of the casing; a central core of a pre-baked electrode disposed within the casing free of the projecting ribs and defining a space between the core and the inner surface of the casing; a heating zone located intermediate the ends of the casing; and a carbonaceous electrode paste received or receivable within the space between the core and the inner surface of the casing, the paste being arranged to be calcined into a baked, hard form upon entering the heating zone and to combine with the pre-baked electrode core.