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What are the applications of industrial graphite powder graphite electrodes

2019-11-22 11:32:38

As the world industry is advancing by leaps bounds, graphite graphite powder has been regarded as one of the important industrial mineral raw materials at home abroad. Especially in recent years, with the development of science technology, graphite has played an important role in all walks of life. effect.

Industrially, graphite ore is divided into crystalline graphite ore stable crystalline graphite ore. Crystalline graphite ore can be divided into scale-like dense-like.


China's graphite ore is mainly of scaly crystalline type, followed by cryptocrystalline type. Dense crystalline graphite is only found in individual deposits such as Tokebula, Xinjiang, has little industrial value.

Industrial graphite maintains the original chemical properties of flake graphite, namely acid resistance, corrosion resistance physical properties, high temperature resistance low temperature resistance. Its compressive strength is greater than 800kg/Cm2, it is resistant to oxidation. It loses 1% weight in the air at 450°C. The elasticity is 15-50%. It also has strong graphite powder self-lubricating properties. Therefore, graphite has been widely used in metallurgy, chemical industry, petrochemical industry, high energy physics, aerospace, electronics, etc.

Using the characteristics of graphite, people have dexterously made different types of products according to engineering needs: such as high-purity graphite, flexible graphite, composite graphite so on. In order to improve the performance, graphite fiber, graphite wire, metal mesh, metal processing plate are made into graphite powder composite graphite, which greatly increases its strength elasticity.

Composite graphite is mainly cold-pressed heat-bonded with resins, synthetic rubber, plastics, liquid graphite semi-liquid graphite.

Graphite plays the important role of graphite powder in a wide range of fields, such as sealing, temperature resistance, corrosion resistance, electrical conductivity, heat preservation, compression resistance, wear resistance, oxidation resistance. It has attracted the attention of experts at home abroad. Of course, graphite is also quietly entering modern office supplies. For example, an archives factory in Jiangxi uses graphite expansion to process it into insect-proof discs that can absorb medicines for a year.

Because graphite has a small expansion coefficient can withstand rapid cold rapid heat changes, it can be used as a mold for glassware. After using graphite, ferrous metals can obtain castings with accurate size, smooth surface, high yield. It can be processed without processing a little processing. Use, thus saving a lot of metal. The production of cemented carbide other powder metallurgy processes usually use graphite materials to make boats for pressure sintering. In addition, graphite can also be used for vacuum smelting graphite heat insulation boards bases, high-temperature resistance furnace tubes, rods, plates, grid sheds other components.