METHOD FOR PERIODICALLY ELONGATING AN ELECTRODE FOR AN ELECTRIC ARC FURNACE AND ELECTRODE FOR ELECTRIC ARC FURNACE

A method for periodic elongation of the electrode for the electric arc furnace and the electrode for the electric arc furnace. The method includes screwing on the electrode column of an earlier prepared new electrode and a nipple with a longitudinal through hole with a metal rod in it, for example made of aluminium or copper, which is melted under the working temperatures of the electrode column with filling up cavities in the joint "electrodes-nipple", as well as with partial filling of the additional cavity in the body of the electrode, the gas mixture from the space of the additional cavity free of liquid metal being drawn to the working area of the furnace through provided holes in the body of the said electrode. The electrode for the realization of the said method is made with additional cavities, placed along the central axis in the bottom of the threaded sockets, the said cavities having different diameters and depths and one of them being connected to the external surface of the electrode by means of holes.