Graphite Powder
Size
1≥60%, etc
Package
25kg small bags into ton bags or ton bags
Features
High temperature resistance, conductivity and thermal conductivity, etc.
Application
As refractory material, conductive material and wear-resistant lubricating material, etc.
Graphite powder is a widely used industrial material, which is obtained from high-purity graphite after crushing, grinding, and screening. The classification of graphite powder is mainly based on the particle size, ranging from 50 mesh to 30000 mesh. The larger the mesh, the finer the particle size, and the higher the price.
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There are many kinds of graphite powder. Different kinds of graphite powder have different uses, with the rapid development of world industry, graphite powder has been regarded as one of the important industrial mineral raw materials at home and abroad, especially in recent years, with the development of science and technology, graphite has played an important role in all walks of life.
In industry, graphite ore is divided into two categories: crystalline graphite ore and stable crystalline graphite ore. Crystalline graphite ore can be divided into two types: scale and compact.
The graphite ores in China are mainly of flake type, followed by the cryptocrystalline type. Dense crystalline graphite is only found in some deposits such as tokbla, Xinjiang, and its industrial value is not great.
Industrial graphite maintains the original chemical characteristics of flake graphite, i.e. acid resistance, corrosion resistance, physical properties, high-temperature resistance, and low-temperature resistance. Its compressive strength is more than 800kg / cm2, and it is an antioxidant. It loses 1% weight in the air at 450 ℃ and its rebound rate is 15-50%. It also has the strong self-lubricating property of graphite powder. Therefore, graphite has been widely used in metallurgy, chemical industry, petrochemical industry, high energy physics, aerospace, electronics, and so on.
Based on the characteristics of graphite, different types of products have been skillfully made according to the needs of engineering, such as high-purity graphite, flexible graphite, composite graphite, and so on. To improve its performance, graphite powder composite graphite is made by combining graphite with fiber, graphite wire, metal mesh, and metal processing plate, which greatly increases its strength and elasticity.
Composite graphite is mainly with resin, synthetic rubber, plastic cold pressing, or heat sealing two kinds, as well as liquid graphite and semi-liquid graphite.
Graphite plays an important role in a wide range of fields, such as graphite powder sealing, temperature resistance, corrosion resistance, electrical conductivity, heat preservation, compression resistance, wear resistance, oxidation resistance, and so on. Of course, graphite is also quietly entering the modern office supplies. For example, a file supplies factory in Jiangxi uses graphite to expand and process into insect-proof discs with a certain drug adsorption capacity, which can maintain the drug resistance for a year.
Due to its small expansion coefficient and its ability to withstand rapid cooling and heating, graphite can be used as a mold for glassware. After using graphite, the castings made of ferrous metal have accurate size, smooth surface, and high yield. It can be used without or with little processing, thus saving a lot of metal. In the production of cemented carbide and other powder metallurgy processes, graphite materials are usually used to make vessels for pressure resistance and sintering. In addition, graphite can also be used as graphite insulation plate and base for vacuum smelting, as well as tube, rod, plate, grid, and other elements of high-temperature resistance furnace.
There are many kinds of graphite powder. Different kinds of graphite powder have different uses. The good conductivity of conductive graphite powder is mainly achieved by improving the production process of the carbon content of graphite powder. Although the main component of graphite powder is carbon element, there are still trace metal elements, w element, and other impurities, which need to be removed through the production process to improve the carbon content of graphite powder, to achieve the carbon content of conductive graphite powder. Graphite powder is a good non-metallic conductor, although its conductivity can not be compared with aluminum, iron, copper, and other metals, compared with other ordinary materials, its conductivity is quite high, such as 3 times of carbon steel, 5 times of stainless steel, 100 times higher than other non-metallic materials. And on this basis, our company after a high degree of purification, produced a more powerful conductive graphite powder, as a graphite powder manufacturer, our conductive graphite powder carbon content is generally 99.9% or more, so the conductive graphite powder conductivity will be very good. Conductive graphite powder can be widely used in the electrical industry as an electrode, carbon tube, brush, carbon rod, the positive electrode of mercury rectifier, telephone parts, graphite gasket, coating of the TV picture tube, etc. Among them, the graphite electrode is the most widely used. When smelting all kinds of alloy steel and ferroalloy, conductive graphite powder is used as the electrode. At this time, the strong current is introduced into the smelting area of the electric furnace through the electrode to generate an arc, which converts electric energy into heat energy. The temperature rises to about 2000 ℃, to achieve the purpose of smelting or reaction.
In addition, conductive graphite powder can also be used as antistatic and conductive materials widely used in industry and life, such as:
- Conductive graphite powder is used in resin and coating, which plays an irreplaceable role in home anti-static and hospital building anti-electromagnetic radiation because conductive graphite powder and conductive polymer composite can be made into composite materials with excellent conductivity.
- Conductive graphite powder is used in plastic or rubber to make different conductive rubber and plastic products, such as computer anti-electromagnetic screens, anti-static additives, etc.
- Conductive graphite powder is used in conductive cloth and conductive fiber to shield electromagnetic waves.
Therefore, conductive graphite powder is used as a conductive additive to produce various conductive products. Conductive graphite powder can be used to produce conductive coatings, electrodes, battery materials, etc. conductive graphite powder is used in lithium batteries. Conductive graphite powder is used as anode material. Conductive graphite powder can provide stable voltage for lithium batteries and reduce the internal resistance of batteries, Therefore, the discharge time of the battery is extended to a greater extent, and the conductive graphite powder can play its role in conducting electricity, wear resistance, and corrosion resistance in epoxy electrostatic conductive floor coatings.
