Ultra high power graphite electrodes used in electric arc furnaces play the following roles in the steelmaking process:Transmission of electrical energy: Graphite electrodes have good conductivity and can transfer electrical energy from the power source to the electric arc furnace, forming a high-temperature arc, thereby achieving the melting and heating of furnace materials.Stable arc: Graphite electrodes have a high melting point and thermal stability, which can maintain stability under the action of high-temperature arcs, ensuring stable combustion of the arc.Protecting furnace materials: Graphite electrodes produce protective gas during the melting process of furnace materials, which can protect the furnace materials froM oxidation and corrosion.