Graphite electrode for sale mainly petroleum coke, needle coke as raw material, coal pitch as binder, calcination, ingredients, kneading, molding, baking and graphitization, machining and made, which is released in electric arc furnace in the form of arc conductor of electricity to heat melting furnace charge, according to its quality indicators, can be divided into ordinary power, high power and high power.
1. Ordinary power graphite electrode: graphite electrode for sale with current density less than 17A/ cm 2 is allowed to be used, mainly for ordinary power electric furnaces such as steel making, silicon refining and yellow phosphorus refining.
2. Anti-oxidation coating graphite electrode: the graphite electrode with anti-oxidation protective layer is coated on the surface to form a protective layer that can conduct electricity and resist high-temperature oxidation, reducing the electrode consumption in steelmaking.
3. High-power graphite electrode: graphite electrode with current density of 18 ~ 25A/ cm 2 is allowed to be used, mainly for high-power electric arc furnaces used in steelmaking.
4. Ultra-high power graphite electrode: graphite electrode with current density greater than 25A/ cm 2 is allowed. Mainly used in ultra high power steel arc furnace.
The graphite electrode for sale mine thermoelectric furnace is mainly used for the production of ferroalloy, pure silicon, yellow phosphorus, matte and calcium carbide, etc. Its characteristic is that the lower part of the conductive electrode is buried in the burden, so in addition to the electric arc between the plate and the charge, the resistance of the charge also generates heat when the current passes through the charge. About 150kg of graphite electrode is needed for each ton of silicon, and about 40kg of graphite electrode is needed for each ton of yellow phosphorus.
The graphitization furnace for producing graphite products, the melting furnace for melting glass and the electric furnace for producing silicon carbide are all resistance furnaces.
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