Product Introduction

1.DESCRIPTION

Graphite electrode is mainly made of petroleum coke and needle coke as raw materials and coal tar pitch as binder after calcination, batching, kneading, molding, roasting, graphitization and machining. It is a conductor that releases electric energy in the form of arc to heat and melt furnace materials. According to its quality indicators, it can be divided into ordinary power graphite electrode, high power graphite electrode and ultra-high power graphite electrode. Graphite electrodes are mostly cylindrical in shape, with dimensions ranging from 200 to 500 millimeters in diameter and 1700 to 1900 millimeters in length.

2.Uses：

Graphite electrodes are used for steelmaking, as well as for smelting yellow phosphorus, industrial silicon, abrasives, etc. Firstly, it is mainly used for electric arc steelmaking furnaces. Electric furnace steelmaking uses graphite electrodes to introduce current into the furnace, and the strong current generates arc discharge through gas at the lower end of the electrode. The heat generated by the arc is used for smelting. According to the capacity of the electric furnace, graphite electrodes with different diameters are used. To ensure continuous use of the electrodes, they are connected by electrode threaded joints. Graphite electrodes for steelmaking account for approximately 70-80% of the total amount of graphite electrodes used.

Secondly, it is used for submerged arc furnaces to produce ferroalloys, pure silicon, yellow phosphorus, matte copper, and calcium carbide. Its characteristic is that the lower part of the conductive electrode is buried in the furnace material. Therefore, in addition to the heat generated by the arc between the electric plate and the furnace material, the heat is also generated by the resistance of the furnace material when the current passes through the furnace material. Each ton of silicon requires about 150kg of graphite electrodes, and each ton of yellow phosphorus requires about 40kg of graphite electrodes.

Thirdly, resistance furnaces, graphitization furnaces for producing graphite products, furnaces for melting glass, and electric furnaces for producing silicon carbide are all resistance furnaces. The materials inside the furnaces are both heating resistors and heated objects.

3.Product specifications：

The specification of graphite electrode consists of electrode and connector. The product is mainly determined by resistivity, bulk density, flexural strength, elastic modulus, ash content, coefficient of thermal expansion and other factors. The diameter and current density of the external product are determined in all aspects. The product specifications are classified widely.