The use of graphite electrodes is primarily reflected in the following

Update:23-03-2019
Summary:

(1) for electric arc furnace Graphite electrodes are pr […]

(1) for electric arc furnace

Graphite electrodes are primarily used in electric furnace steelmaking. Electric furnace steelmaking uses a graphite electrode to introduce current into the furnace. A strong current is arc-discharged through the gas at the lower end of the electrode, and the heat generated by the arc is used for exercise. According to the size of the electric furnace, the graphite electrodes of different diameters are used. In order to make the electrodes be used in succession, the electrodes are connected by the electrode thread joints. The graphite electrode for steelmaking accounts for about 70-80% of the total amount of graphite electrode.

(2) used in mine electric furnace

Graphite electrode ore electric furnace is mainly used to produce iron alloy, pure silicon, yellow phosphorus, matte copper and calcium carbide. It is characterized in that the lower part of the conductive electrode is buried in the furnace, so that the heat generated by the arc between the electric plate and the charge is generated. Heat is also generated by the resistance of the charge as it passes through the charge. It takes about 150kg of graphite electrode per ton of silicon, and about 40kg of graphite electrode per ton of yellow phosphorus.

(3) for resistance furnace

The graphitization furnace for producing graphite products, the melting furnace for melting glass, and the electric furnace for producing silicon carbide are all electric resistance furnaces, and the materials contained in the furnace are both heating resistors and heated targets. Generally, the graphite electrode for electric conduction is pierced into the furnace wall at the end of the hearth, so the conductive electrodes are not costly.

In addition, many graphite electrode blanks are also used to process various types of enamel, graphite boats, hot-pressing molds and vacuum electric furnace heating bodies. For example, in the quartz glass occupation, it is necessary to use a graphite electrode blank 10 t for each lt melt tube, and 100 kg of the electrode material for each lum quartz brick.