99 9% графитовая пыль синтетический проводящий графитовый порошок Цена искусственный

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99.9 % graphite dust synthetic conductive graphite powder price artificial graphite powder thermal conduct

 

 Graphite is a kind of crystalline carbon.Hexagonal system, iron inky to dark gray.Density 2.25 g/cm 3, hardness 1.5, solution point 3652℃, boiling point 4827℃.Soft, creamy and conductive.Chemical properties are not active, corrosion resistance, and acid, alkali and other easy to react.Heat is added to air or oxygen and can be burned to produce carbon dioxide.Strong oxidants will oxidize it to organic acids.Crucible, electrode, dry battery, pencil core used as antifriction agent and lubricating material.High purity graphite can be used as a neutron reductor in nuclear reactors.Often referred to as carbon or black lead because it was previously mistaken for lead.

Flake graphite

The graphite crystals are scaly;It is metamorphosed under high pressure and has large and fine scales.This kind of graphite ore is characterized by low grade, generally between 2~3%, or 10~25%.It is one of the most floatable ores in the nature, and the high grade graphite concentrate can be obtained through multi-grinding and multi-separation.The floatability, lubricity and plasticity of this kind of graphite are superior to other types of graphite.Therefore, it has the greatest industrial value.

 

 

 

 

 

 

Application of graphite powder

1. As refractories
2. As conductive material
3. As wear-resistant lubricating material
4. Graphite has good chemical stability. After special processing, graphite has the characteristics of corrosion resistance, good thermal conductivity and low permeability, so it is widely used to make heat exchanger, reaction tank, condenser, combustion tower, absorption tower, cooler, heater, filter and 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, sanding, die-casting and high-temperature metallurgical materials
6. For the atomic energy industry and national defense industry
7. Graphite can also prevent the boiler from scaling.
8. Graphite can be used as pencil lead, pigment and polishing agent. After special processing, graphite can be used to make all kinds of special materials for relevant industrial departments.

In addition, graphite is also a polishing agent and antirust agent for glass and paper in light industry, and an indispensable raw material for making pencils, ink, black paint, inks, artificial diamonds and diamonds. It is a good energy-saving and environmental protection material, which has been used as a car battery in the United States. With the development of modern science and technology and industry, the application field of graphite is still expanding. It has become an important raw material of new composite materials in the high-tech field and plays an important role in the national economy.

 

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