What are the Precautions for Using Graphite Electrodes as Conductive Materials?

Jul. 12, 2021

When electric arc furnace or submerged electric furnace smelting enterprises choose various alloy steels, ferroalloys, or use calcium carbide and yellow phosphorus in production, strong current can pass through carbon electrode or graphitized electrode as the smelting zone of the electric furnace to produce an arc that affects the electric energy information. It becomes a kind of heat energy, and the temperature is continuously increased to about 2000 degrees Celsius, so as to meet the requirements of improving smelting or reaction. Graphite Electrodes mainly uses petroleum coke and needle coke as raw materials, coal tar pitch as a binder, and is made by calcination, batching, kneading, pressing, roasting, graphitization, and machining. It releases electric energy in the form of electric arc in an electric arc furnace. The conductors that heat and melt the charge can be classified into ordinary power, high power and ultra-high power according to their quality indicators. As a Graphite Electrodes Solutions Supplier, share it with you.

Graphite Electrodes

Graphite Electrodes

Graphite Electrodes mainly include four types of ordinary power graphite electrodes, anti-oxidation coating graphite electrodes, high-power graphite electrodes and ultra-high-power graphite electrodes. Graphite block is a kind of artificial graphite, and artificial graphite is made by artificial heating of coke products. Generally, if it is purified to make high-purity or carbon fiber, the added value is high. Graphite rods are often used as electric heating elements in high-temperature vacuum furnaces. The maximum operating temperature can reach 3000°C. It is easy to oxidize at high temperatures. Except for vacuum, it can only be used in neutral or reducing atmospheres. Its thermal expansion coefficient is small, thermal conductivity is large, resistivity is (8~13)×10-6 Ω·m, processability is better than SiC, MoSi2 rod, high temperature resistance, extreme cold and extreme heat resistance, good price Cheaper. Magnesium, aluminum, and sodium are usually prepared by molten salt electrolysis, and the case of the electrolytic cell of the conductive material of the anode is a graphite electrode or a continuous self-baking electrode.

The temperature of molten salt electrolysis is usually 1000 degrees Celsius. Conductive materials for the production of caustic soda and anodes, chloride salt solutions in electrolytic cells, and usual graphite anodes. The use of conductive material resistance combustion furnace to produce emery is graphite electrodes. In addition to the above research purposes, carbon and graphite for electrodes can be used as a conductive composite material with a wide range of applications for controlling the industrial development of motor design and manufacturing companies as electronic slip rings and brushes, and also used as carbon rods in dry batteries, searchlights or generators Arc carbon rod for arc, anode in mercury rectifier, etc.

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