1, Graphite can be used as a refractory material: graphite and its products have properties of high - strength, high temperature resistance, mainly used to produce graphite crucible in the metallurgical industry, in steelmaking in graphite is usually used for the protection of steel ingot agent, metallurgical furnace lining.
2, Graphite can be used as the conductive material: used for manufacturing electrode, carbon brush, carbon rod, carbon nanotubes, mercury is the cathode in electrical industry, graphite gaskets, telephone parts, TV picture tube coating.
3, Graphite can be used as a wear-resistant material: Graphite in the mechanical industry often as a lubricant. Lubricating oil is often not used in high speed, high temperature and high pressure, while the graphite wear resistant material can be used in the temperature of the 200~2000 (a) at a very high speed, without lubricating oil. Many devices for conveying corrosive media are widely used in the piston cup, sealing rings and bearings, which do not need to be added to the lubricating oil. Shi Moru is one of many metal processing (drawing, drawing) the good lubricant.
4, graphite has good chemical stability. After special processing of graphite, with corrosion resistance, good thermal conductivity, low permeability characteristics, which is widely used in the manufacturing of heat exchanger, reaction tank, condenser, the burning tower, absorption tower, a cooler, a heater, a filter and pump equipment. Widely used in petrochemical, wet metallurgy, acid alkali production, synthetic fiber, paper and other industrial sectors, can save a lot of metal materials.
5, Graphite can be used casting, foundry, molding and high temperature metallurgical material: due to graphite thermal expansion coefficient is small, and the capability of rapid quench heat changes, as the mold of the glass, the use of graphite black metal by casting, precise size, smooth surface and high rate of finished products, processed or minor processing can be used, thus saving a large amount of metal. Production of hard alloy and other powder metallurgy process, usually made of graphite materials and sintered in the use of the porcelain boat. The crystal growth crucible, the area of the refining container, the support fixture, the induction heater and so on are all made of high purity graphite. Graphite can also be used for vacuum smelting of graphite heat insulation board and base, high temperature resistance furnace tube, rod, plate, grid and other components.
6, Graphite can be used in the atomic energy industry and defense industry: graphite has a good neutron reducer for the atomic reactor, uranium graphite reactor is currently used more of an atomic reactor. As the power of the atomic energy reactor in the reduction material should have a high melting point, stability, corrosion resistance, graphite can meet the above requirements. As the graphite purity of the nuclear reactor is very high, the impurity content should not exceed several tens of ppm. In particular, the boron content should be less than 0.5ppm. In the defense industry, the use of graphite to produce a solid fuel rocket nozzle, a missile nose cone, the space navigation equipment parts, heat insulation materials and ray material.
7, graphite can prevent the boiler fouling, the unit test shows that adding a certain amount of graphite powder in the water (about 4~5 grams per ton) can prevent the boiler surface fouling. In addition graphite coated metal chimney, roof, bridge, pipeline can be anti-corrosion.
8, graphite can be used as pencil core, pigment, polishing agent. Graphite after special processing, can produce a variety of special materials for the industrial sector.
