What are the classifications of graphite powder?
Release time:
2022-10-19
Graphite powderThere are many classifications based on usage, mainly divided into the following five categories:
1. Ultrafine graphite powder
The specifications of ultrafine graphite powder generally range from 1800 mesh to 8000 mesh. It is mainly used as a demolding agent in powder metallurgy, for manufacturing graphite crucibles, battery anodes, conductive material additives, etc.
2. Flake graphite powder
Flake graphite powder is currently a widely used raw material for processing other graphite powders. The specifications of Qingdao Huatai flake graphite powder range from 32 mesh to 12000 mesh. Flake graphite powder has good toughness, thermal conductivity, and corrosion resistance, and can be used as refractory, wear-resistant, lubricating materials, conductive materials, casting, sanding, molding, and high-temperature metallurgical materials.
3. High-purity graphite powder
As the name suggests, high-purity graphite powder has a high purity, with conductivity 100 times that of ordinary metals, and has good lubrication effects. High-purity graphite powder is mainly used for preparing conductive coatings and high-strength graphite electrodes.
4. Colloidal graphite powder
Colloidal graphite is formed by the average dispersion of graphite particles in organic solvents below 2μm. Graphite colloid is a black, viscous suspension. Colloidal graphite powder has high-quality natural flake graphite, special oxidation resistance, self-lubrication and plasticity at high temperatures, good conductivity, thermal conductivity, and adhesion. It is mainly used in sealing, metallurgical demolding, and other industries.
5. Nano graphite powder
The main specifications of nano graphite powder are 504000nm. The preparation process of nano graphite powder is relatively complex, with low yield and relatively high price. It is mainly used in anti-corrosion coatings, lubricating oil additives, grease additives, precision graphite seals, and other industries. In addition, nano graphite powder has high application value in research institutions.
Key words:
Expandable graphite, Harbin Institute of Technology graphite
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