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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Graphite powder is soft in texture and black in color. Under the condition of oxygen isolation, its melting point is above 3000℃. It is one of the minerals with high-temperature resistance. Graphite powder is stable at room temperature, insoluble in water, dilute acid, dilute alkali; Sufficient oxygen reacts with oxygen to form carbon dioxide and insufficient oxygen reacts with oxygen to form carbon monoxide. Fluorine can react directly with elemental carbon; It can be used to reduce many metal oxides at high temperatures and can be used to smelt metals, such as iron.
Graphite and love symbol diamond, diamond, carbon 60, and so on are elemental carbon, for allotrope.
There are many types of graphite powder, the main types are as follows:
1, Flake graphite powder is a crystalline mineral of carbonaceous elements, its shape is like fish scales, and the crystalline lattice is a hexagonal layered structure. The distance between each grid layer is 340pm, and the distance between carbon atoms in the same grid layer is 142pm. It belongs to a hexagonal crystal system with complete lamellar cleavage. It has good high-temperature resistance, electric conductivity, heat conduction, lubrication, plastic and acid, and alkali resistance
2, Nano graphite powder is graphite powder particles through the nano screen graphite powder products, nano graphite powder particle size reached the nano level. Particle size index: D100<1000nm,D50<400nm, carbon content is greater than 99.99%. Nano graphite powder is the ideal solid lubrication material, the formation of chemical bonding on the metal surface of tough almost non-wear nano graphite, suspended in the lubricating oil with a large number of nano graphite, friction reduction, sealing self-lubrication. Widely used in the chemical industry, steel lubrication, aerospace, lubricating oil, and other fields.
3, Earthen graphite powder is also called microcrystalline stone ink, good quality, high fixed carbon content, less harmful impurities, sulfur, iron content is very low, stable chemical properties are not affected by strong acid and alkali, enjoys a high reputation in the graphite market at home and abroad, known as “gold sand”.
4, In addition to the above kinds, graphite powder is also divided into high purity graphite powder, casting graphite powder, colloidal graphite powder, etc.
Graphite powder is closely related to our life, the main uses are as follows:
1, Refractory materials: graphite and its products with high-temperature resistance, high strength properties, in the metallurgical industry are mainly used to manufacture graphite crucible, in steelmaking graphite is commonly used as a protective agent of ingot, metallurgy furnace lining.
2, Conductive materials: used in the electrical industry to manufacture electrodes, brushes, carbon rods, carbon tubes, graphite gaskets, telephone parts, television picture tube coating, etc.
3, Lubrication materials: graphite is often used as a lubricant in the machinery industry. Lubricating oil often can not be used at high speed, high temperature, and high pressure, and graphite lubricating materials can work without lubricating oil at 2000℃ temperature.
4, High-temperature metallurgical materials: graphite has reducibility, can use reducibility to reduce many metal oxides at high temperature, can smelting metal, such as ironmaking.
5, Polishing agent and anti-rust agent: graphite or light industry glass and paper polishing agent and anti-rust agent, is the manufacture of pencils, ink, black paint, ink, and artificial diamond, diamond indispensable raw materials.
