Graphite electrode refers to a kind of resistant material made of petroleum coke and pitch coke as aggregate, coal tar pitch as binder, through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. High temperature graphite conductive material. It is mainly used in steelmaking, as well as smelting yellow phosphorus, industrial silicon, abrasives, etc. It is a conductor that releases electric energy in an electric furnace to heat and melt the charge. According to Chinese standards, graphite electrodes can be divided into three types: ordinary power graphite electrodes (RP), high power graphite electrodes (HP) and ultra-high power graphite electrodes (UHP).
The production process of graphite electrodes mainly includes raw product manufacturing (crushing, batching, kneading, molding), roasting, impregnation (primary impregnation, secondary impregnation), re-roasting, graphitization, machining and other processes. The production cycle of ordinary power graphite electrode body takes about 3 months, while the production cycle of ultra-high power graphite electrode is about 5 months.