Superior Lubricating Material – Flake Graphite

All kinds of flake graphite used in the industrial market are used as raw materials. This is because flake graphite is among all natural graphites, and its performance and use are relatively outstanding. In particular, flake graphite itself has good lubricating properties, and it is mainly used in industrial lubricating fluids. Location. Graphite flakes are widely used, and there is a great demand for graphite flakes in today’s society. The following is an in-depth study of the flake graphite in the Franli factory in combination with the actual needs of life and the environment.

Lubricity of flake graphite

Why flake graphite can be applied for lubricating? The intrinsic nature of flake graphite lubrication is its layered crystal structure. After dehydration, it was vacuum-dried at 60°C. However, the environmental atmosphere and the environmental medium in which the flake graphite is located affect the performance of its lubricating effect. Under humid atmospheric conditions, the friction coefficient of graphite flakes can be as low as 0.05 to 0.15, while in vacuum, the friction coefficient of graphite flakes rises to 0.5 to 0.8. For graphite under vacuum conditions, once the powder is introduced into the air, oxygen, water vapor or benzene, ammonia, ethanol, acetone, heptane, etc., the friction coefficient will be reduced quickly, while the introduction of nitrogen or carbon dioxide and other gases will not reduce. The effect of friction coefficient.

The role of flake graphite in solid lubricants

The lubricating properties of flake graphite are also affected by the factors of graphite particles. Some research and test results show that: whether it is natural flake graphite or artificial graphite powder, graphite powder with an average particle size of 4-5um will produce a good lubrication effect, which can minimize the friction and wear of the test piece. Coarse-grained flake graphite can produce an abrasive effect, which is not conducive to reducing friction and anti-wear. However, it is obvious that fine graphite powder such as 1Lm particle size also leads to a decrease in the anti-friction and anti-wear effect, which does not seem to be explained by the abrasive particle effect. Because the fine graphite powder has lost the friction-reducing mechanism of the lamellar slip, it is accompanied by the adsorption and film formation of the fine graphite powder on the friction surface. If this solid film is not strengthened by wetting agents or film-forming agents, its lubricating effect will not be satisfactory.

The reason why flake graphite can be a lubricant

Because flake graphite is a crystalline form of carbon, with a hexagonal lattice, the atoms are arranged in layers, the distance between carbon atoms on the same crystal plane is 0.142nm, and they are covalently bonded to each other; The distance is 0.34nm, and the atoms are bonded by molecular bonds. The force between the layers is very small, so it is easy to slide relatively between the layers. Thank these structural characteristics, its strength and hardness are very low, and its plasticity is also very poor, but it can play a good role in reducing wear and is a good solid lubricant.

We found that natural flake graphite has great development and value-added space. my country’s flake graphite reserves are relatively rich. In recent years, the new energy policy launched by the state has been fully implemented. The deep processing project of flake graphite will be carried out as a key point, which will bring quality flake graphite to emerging industries. If have any demands for flake graphite, welcome.