First, the classification of graphite electrode
Graphite electrode is divided into: ordinary power graphite electrode (RP); High power graphite electrode (HP); Ultra-high power graphite electrode (UHP).
Second, the use of graphite electrode
1. Used for electric arc furnace steelmaking
Graphite electrode material is mainly used in electric furnace steelmaking. Electric furnace steelmaking is the use of graphite electrode into the furnace to introduce the working current, the strong current at the bottom of the electrode can be through these gas environment to produce the influence of arc discharge, using the heat generated by the arc to smelting. The size of the electric capacity, equipped with graphite electrodes with different diameters, can be used continuously, against the connection between electrode joints electrodes. The graphite used in steelmaking as electrode material accounts for about 70-80% of the total amount of graphite in China.
2.Used for mineral thermal electric furnace
Used for the production of iron furnace ferroalloy, pure silicon, yellow phosphorus, calcium carbide and matte, which is characterized by the lower part of the conductive electrode buried in the charge, so in addition to the electric plate and the electric arc between the charge to produce heat, the current through the charge resistance also produce heat.
3.For resistance furnaces
In the process of production, graphitization furnace for graphite material products, furnace for melting glass and electric furnace for silicon carbide are resistance furnaces. The material management in the furnace is not only a heating resistance, but also the object to be heated.
4.Hot die casting die and vacuum furnace heater and other special products
It should also be noted that in including graphite electrode, graphite mold and graphite crucible 3 kinds of high temperature composite materials, three graphite materials at high temperature, graphite is easy to oxidize combustion reaction, thus in the surface of the carbon layer of the material, improve the graphite void structure loose.
Post time: Aug-31-2022