First, Overview:
The graphite electrode is mainly made of petroleum coke and needle coke. The coal bitumen is used as a binder. It is made by calcination, compounding, kneading, pressing, roasting, graphitization and machining. It is used to discharge electric energy in the form of electric arc in the electric arc furnace. The conductors that heat and melt the charge can be divided into ordinary power graphite electrodes, high power graphite electrodes and ultra high power graphite electrodes according to their high quality indexes.
Second, the production characteristics:
1. Long production cycle.
2. High energy consumption. 3. There are many production processes.
Third, the application:
1. Used in electric arc steelmaking furnaces.
Electric furnace steelmaking is the largest use of graphite electrodes. The graphite electrode for steelmaking accounts for 70% to 80% of the total amount of graphite electrode. Electric furnace steelmaking uses a graphite electrode to introduce a current into the furnace, and smelting is performed by a high-temperature heat source generated by an arc between the electrode end and the charge.
2. used in mine electric furnace
The ore electric furnace is mainly used for the production of industrial silicon and yellow phosphorus. It is characterized in that the lower part of the conductive electrode is buried in the charge, an electric arc is formed in the material layer, and the heat generated by the resistance of the charge itself is used to heat the charge, wherein current is required. A higher density dense thermal furnace requires a graphite electrode.
3.for the 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. The materials contained in the furnace are both heating resistors and objects to be heated. Usually, graphite electrodes for electric conduction are embedded in the resistance furnace end. In the furnace wall of the department, the graphite electrode used here is not continuously consumed.
4.used to prepare shaped graphite products
The graphite electrode blank is also used to process a variety of shaped graphite products such as enamel, mold, boat and heating element.
