Graphite electrode is a kind of material made of petroleum coke and pitch coke as aggregate and coal pitch as binder. It is made by calcining raw materials, crushing and grinding, batching, kneading, shaping, roasting, impregnation, graphitization and mechanical processing. High temperature resistant graphite conductive material. According to their quality indicators, they can be divided into ordinary power graphite electrodes, high power graphite electrodes and ultra-high power graphite electrodes.
The main raw materials of graphite electrodes are petroleum coke and pitch coke. A small amount of pitch coke can be added to ordinary power graphite electrodes. The sulfur content of petroleum coke and pitch coke cannot exceed 0.5%. Needle coke is also required when producing high-power or ultra-high-power graphite electrodes.
