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Graphite can be divided into natural graphite and artificial graphite, which as the name suggests is made of artificial graphite. Graphite is an allotrope of elemental carbon. The existence of carbon is varied, with crystalline elemental carbon such as diamond, graphite; with amorphous carbon such as coal; complex organic compounds such as animals and plants; carbonate such as marble and so on. Because graphite has many excellent properties, it has been widely used in metallurgy, machinery, monocrystalline polycrystalline solar, electrical, chemical, textile, mold, electronic semiconductor, defense, aviation, aerospace, medical, sports, automotive and other industrial sectors.
In the metallurgical industry, natural flake graphite can be used to produce refractory materials such as magnesia carbon bricks and aluminum carbon bricks because of its good oxidation resistance. Artificial graphite can be used as a steelmaking electrode, and electrodes made of natural graphite are difficult to use in the more demanding steelmaking electric furnaces.
In the mechanical industry, graphite materials are commonly used as wear and lubrication materials. Natural flake graphite lubricity is better, commonly used as lubricant additives. Corrosive medium transport equipment, extensive use of artificial graphite piston rings, seals and bearings, work without the need for lubricating oil. Natural graphite and polymer resin composite materials can also be used in these areas, but wear resistance as artificial graphite.
In the chemical industry, artificial graphite has the characteristics of corrosion resistance, good thermal conductivity and low permeability. In the chemical industry is widely used in the production of heat exchangers, reaction tanks, absorption towers, filters and other equipment. Natural graphite and polymer resin composite materials can also be used in these areas, but the thermal conductivity, corrosion resistance as artificial graphite.