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Various types of graphite electrodes description

May 21,2019January 10, 2019
   1 The graphite electrode is made of petroleum coke, needle coke, coal tar and other high quality low ash materials. After calcining, batching, kneading, molding, baking, pressure impregnation, graphitization, and then by professional CNC precision machining.This product has the characteristics of low resistivity, good electrical conductivity, low ash content, compact structure, good oxidation resistance and high mechanical strength. It is widely used in LF and EAF of steel making, non-ferrous metal, silicon and phosphorus industries.
   2 The most critical factor in the development of graphite electrodes is the grade of petroleum coke used, as higher grades of the petroleum coke produce higher quality electrodes.An Overview of Graphite Electrode Standard Grades is about two diffierent types.

   3They are currently the only products with high electrical conductivity and are capable of maintaining extremely high heat production in such a demanding environment. 

   4One type is called “SDGE,” which stands for small diameter graphite electrodes. These electrodes are most commonly used for melting scrap metal and other raw materials and are used in Electric Arc Furnaces (EAF).The other electrode type is the “LDGE” or large diameter graphite electrode. These types of graphite electrodes are most commonly used for steel melting in very large EAF’s requiring very high-temperature and high-intensity applications.

   5 In addition to the grade of petroleum coke, several other factors can impact the quality of the graphite electrode and its ability to carry a current such as length, diameter, bulk density, resistance and porosity.