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Application of graphite products2019-01-14

1. As refractory material: Graphite and its products have the properties of high temperature resistance and high strength. They are mainly used in the metallurgical industry to manufacture graphite crucibles. In steelmaking, graphite is commonly used as a protective agent for steel ingots and the inner liner of metallurgical furnaces.

2. Conductive materials: used in the electrical industry as a manufacturing electrode, brush, carbon rod, carbon tube, mercury positive current of the positive pole, graphite gasket, telephone parts, television picture tube coating.

3. Wear - resistant lubricant: graphite is often used as a lubricant in the mechanical industry. Lubricating oil can not be used in high speed, high temperature and high pressure conditions, and graphite wear-resisting material can be in 200 ~ 2000 ℃ temperature under high sliding velocity, no lubricating oil. Many conveying corrosive medium equipment, widely used graphite material made of piston cup, seal ring and bearing, they do not need to add lubricating oil when running. Graphite emulsion is also a good lubricant for many metal processing (wire drawing, tube drawing).

4. Graphite has good chemical stability. After special processing of graphite, with corrosion resistance, good thermal conductivity, low permeability and other characteristics, it is widely used in the production of heat exchangers, reaction tank, condensers, combustion tower, absorption tower, cooler, heater, filter, pump equipment. Widely used in petrochemical, hydrometallurgy, acid and alkali production, synthetic fiber, paper and other industrial sectors, can save a lot of metal materials.

5. For casting, aluminum casting, molding and high temperature metallurgical materials: due to the small thermal expansion coefficient of graphite, and ability to the change of thermal shock, can be used as glass mold, after using graphite black metal casting dimension precision, smooth surface high yield, without processing or slightly processing can use, thus saving a large amount of metal. The powder metallurgy process of producing hard alloy is usually made of graphite material into porcelain boat for pressing and sintering.

6. Graphite can also prevent the boiler scale, the relevant unit test shows that the addition of a certain amount of graphite powder in water (about 4 to 5 grams per ton of water) can prevent the boiler surface scale.

7. Graphite can be used as pencil lead, pigment, polishing agent. After being specially processed, graphite can be made into various special materials for use in relevant industrial departments.

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