Graphite electrode
0 likes
China [CN] Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials and coal tar pitch as binder. They are made by crushing and screening ,kneading, forming,baking ,impregnation graphitization and machining. They are released in the form of electric arcs in an electric arc furnace，then heating and melting the raw materials as electrode.GE can be classified into RP, HP and UHP according to different specification. The products have the advantages of low resistivity, low ash content, uniform structure, good thermal vibration resistance, high mechanical strength, low thermal expansion coefficient, precise fit of electrode and nipple, etc, which is an excellent materials for electric steel-making and ore smelting.
Application:
1. Used in electric arc steel making furnaces: Graphite electrodes are mainly used for electric furnace steel -making. Electric furnace steel-making uses graphite electrodes to introduce current into the furnace, and a strong current passes through the gas at the lower end of the electrode to generate arc discharge, which is caused by the use of electric isolation heat for smelting.
2. Used in submerged electric furnace: graphite electrode submerged heating furnace is mainly used to produce ferroalloy, pure silicon, yellow phosphorus, matte and calcium carbide.
3. For resistance furnaces: graphitization furnaces for the production of graphite products, furnaces for melting glass and electric furnaces for the production of silicon carbide are all resistance furnaces. The raw materials in the furnaces are not only heating resistors, but also heated The goal.
4. For processing: Many graphite electrode blanks are also used for production and processing into various products such as crucibles, graphite boats, hot die casting molds and vacuum furnace heaters.
Click enlarge Image