what is graphite electrodes?
Graphite electrode refers to petroleum coke, asphalt coke as aggregate, coal tar pitch as binder, through raw material calcination, crushing milling, compounding, kneading, molding, roasting, impregnation, graphitization and mechanical processing. High-temperature graphite conductive material, called artificial graphite electrode (abbreviated as graphite electrode), is distinguished from natural graphite electrode prepared by using natural graphite as raw material.
Brief Introduction Of Graphite Electrode
The graphite electrode is mainly made of petroleum coke and needle coke, and the coal bitumen is used as a binder. It is made by calcination, compounding, kneading, pressing, roasting, graphitization and machining. It is to discharge electric energy in the form of electric arc in the electric arc furnace. The conductor that heats and melts the charge can be divided into a common power graphite electrode, a high power graphite electrode and an ultra high power graphite electrode according to its quality index.
The main raw material for graphite electrode production is petroleum coke. The ordinary power graphite electrode can be added with a small amount of pitch coke. The sulfur content of petroleum coke and pitch coke cannot exceed 0.5%. Needle coke is also required for the production of high power or ultra high power graphite electrodes. The main raw material for aluminum anode production is petroleum coke, and the control sulfur content is not more than 1.5% to 2%. Petroleum coke and pitch coke should meet the relevant national quality standards.