Graphite electrodeGraphite electrode is a kind of conductive electrode used in steelmaking furnace. Electric arc is generated between electrode and charge or between electrode and electrode to smelt scrap steel, which is similar to lightning effect.

  1. The main raw materials for the production of graphite electrodes are petroleum coke and needle coke, and coal tar pitch is the binder; it is made through processes such as calcination, stirring, pressing, roasting, impregnation, graphitization and machining.
  2. According to its quality index, it can be divided into ordinary power, high power and super high power.
  3. The graphite electrode is divided into a body and a joint. The joint production process requires three immersion and four baking, because the connection function requires higher quality.
  4. Graphite electrodes have low resistivity and can withstand high temperatures in the electric arc furnace. Because the melting point of graphite is about 3900°C, the melting point of scrap steel is 1700°C, and the temperature in the electric arc furnace is above 3000°C, Graphite electrodes are used for high power and ultra On a high-power electric arc furnace.
  5. Graphite electrodes are mainly used for steelmaking, but also for smelting yellow phosphorus, industrial silicon, abrasives, etc.