Kingrail’s graphite electrodes are made of high-temperature resistance graphite conductive material, designed for use in a range of furnaces and for producing shaped graphite products.
The electrodes are also made of petroleum coke, with coke pitch as an aggregate and coal tar pitch as a binder.
Production of the electrodes includes calcination, crushing and milling of the ingredients, kneading, forming, roasting, dipping, graphitisation and machining.
Classifications include ordinary power (RP), high power (HP), and ultra-high power (UHP).
In electric arc furnaces, steelmaking requires currents to be imported to the furnace by graphite electrodes and smelt by high-temperature heat source of arc generated by the electrode tip and charge
In hot ore furnaces, the mine thermal electric furnace is mainly used for the production of industrial silicone and yellow phosphorus.
This is characterised by the lower part of the conductive electrode buried in the charge, the formation of the arc in the material layer, and the use of charge their own resistance to the heating energy to heat the charge, which requires current.
For every tonne of silicone produced, approximately 100kg of graphite electrodes needs to be used.
The resistance furnace is comprised of the graphitisation, melting and electric furnaces. The material in the furnace is both the heating resistor and the object to be heated.
Normally, the graphite electrode for conduction is embedded in the resistance furnace in the burner wall of the section, where the graphite electrodes used are not continuously consumed.
For the production of shaped graphite products, graphite electrode blanks are also used for processing into a variety of crucibles moulds, boats and heating elements, as well as other shaped graphite products.
For instance, in the quartz glass industry, every tonne of electric melting tube requires 10t of graphite electrode blank, and for every tonne of quartz brick, 100kg of graphite electrode blanks is used.