电弧炉炼钢使用的石墨电极,除随着电弧的发生受到电气及机械损耗外,同时还受到高温、高热气氛的侵蚀,自侧面逐渐被氧化损耗。特别是为提高生产效率与降低电耗,电炉高负荷作业越来越普遍,电极的氧化损耗趋向越来越大,从而增加了电极消耗及冶炼成本。为此,国外曾提出于石墨电极表面浸渍或喷涂防氧化剂的种种方法,使表面形成具 Graphite electrodes used in electric arc furnace steelmaking are subject to electric and mechanical losses as the electric arc is generated and are also subject to erosion by high temperature and high heat atmosphere and are gradually oxidized and lost from the side. Especially in order to improve production efficiency and reduce power consumption, high load operation of the electric furnace is more and more common, and the oxidation loss of the electrode tends to be larger and larger, thereby increasing the electrode consumption and the smelting cost. To this end, foreign countries have proposed in the graphite electrode surface impregnated or sprayed with anti-oxidants in a variety of ways to form the surface with