Special properties of graphite in finished electrode

Graphite is an allotrope of elemental carbon. The periphery of each carbon atom is connected with three other carbon atoms (a plurality of hexagons arranged in a honeycomb pattern) to form covalent molecules by covalent bonding. Since each carbon atom will emit one electron, and those electrons can move freely, graphite belongs to an electrical conductor. Graphite is one of the softest minerals. Its uses include making pencil leads and lubricants. Finished electrode

Special properties of graphite
Graphite has the following special properties due to its special structure:
1) High temperature resistance: the melting point of graphite is 3850 ± 50 ℃, and the boiling point is 4250 ℃. Even if it is burned by ultra-high temperature arc, the weight loss is very small, and the coefficient of thermal expansion is also very small. The strength of graphite increases with the increase of temperature. At 2000 ℃, the strength of graphite is doubled. 　　
2) Conductivity and thermal conductivity: the conductivity of graphite is 100 times higher than that of general non-metallic minerals. Its thermal conductivity exceeds that of metal materials such as steel, iron and lead. The thermal conductivity decreases with the increase of temperature, and even at extremely high temperatures, graphite becomes an insulator. Graphite can conduct electricity because each carbon atom in graphite forms only three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transfer charges. 3) Lubricity: the lubricity of graphite depends on the size of graphite scales. The larger the scales, the smaller the friction coefficient, and the better the lubricity. 　　
4) Chemical stability: graphite has good chemical stability at normal temperature, and can resist acid, alkali and organic solvent corrosion. 　　
5) Plasticity: graphite has good toughness and can be rolled into very thin flakes. Finished electrode
6) Thermal shock resistance: when graphite is used at normal temperature, it can withstand drastic changes in temperature without damage. When the temperature changes abruptly, the volume of graphite changes little and cracks will not occur.

Dongguan Jiecheng graphite products Co., Ltd. specializes in the development, cooperative production, sales and special-shaped processing of carbon materials, and has its own production base outside the province. The special graphite, ordinary carbon blocks and graphite electrodes operated by Dongguan Yongyao graphite are of high quality and fair price, and are applicable to all fields. Special graphite for mould has its own unique features and has been widely used in relevant industries. Finished electrode

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