Graphite electrodes can be divided into ultra-high power graphite electrodes, high-power graphite electrodes and ordinary power graphite electrodes, according to their power. Among them, the ordinary power graphite electrode allows the use of graphite electrodes with a current density of less than 17 A/cm 2 , and the production cycle of ordinary power graphite electrodes is about 45 days, which is mainly used for ordinary power electric furnaces such as steel making, silicon refining, and yellowing phosphorus.