The mechanism of the consumption of graphite includes the sublimation of graphite material caused by high arc temperature and the loss of chemical reaction between the electrode and molten steel and slag. The end high temperature sublimation rate mainly depends on the current density passing through the electrode, which is related to the diameter of the electrode side after oxidation, and the end consumption is also related to whether the electrode is inserted into the molten steel to increase carbon. The consumption of graphite electrode in electric steel making is mainly related to the quality of electrode itself, as well as the conditions of steel making (such as old and new furnace, mechanical failure, continuous production, etc.) and steel making operations (such as smelting steel, oxygen blowing time, burden conditions, etc.).
