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What are the advantages of graphite powder being widely used?

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  • Time of issue:2021-08-23
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(Summary description)Graphite can be widely used in advanced structural refractory materials and coatings in metallurgical industry, such as magnesia carbon brick

What are the advantages of graphite powder being widely used?

(Summary description)Graphite can be widely used in advanced structural refractory materials and coatings in metallurgical industry, such as magnesia carbon brick

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2021-08-23
  • Views:0
Information

Graphite can be widely used in advanced structural refractory materials and coatings in metallurgical industry, such as magnesia carbon brick, crucible, stabilizer of military explosive materials, desulfurization plasticizer in smelting industry, pencil lead in light industry, carbon brush in electrical industry, electrode in battery industry, catalyst in chemical fertilizer industry, etc. After continuous in-depth processing, Qianlong graphite company can produce a kind of graphite emulsion for other lubricants, release agents, wire drawing agents, conductive coatings and so on. Expanded graphite can also be used as raw materials for flexible graphite products, such as flexible graphite seals and flexible graphite composite products. The reason why it is so widely used is mainly due to the following five advantages of graphite powder:

1. It has good thermal conductivity and conductivity

The conductive network performance of graphite powder is good. Although it can not be compared with aluminum, iron, copper and other metal enterprises, its conductivity is quite high compared with some other ordinary building materials, which is 3 times that of carbon steel, 5 times that of stainless steel, and 100 times that of other non-metallic Composites. The development of graphite powder under ultra-high temperature conditions has thermal insulation, which is different from the general use of metal structural materials. The thermal conductivity of general metals increases with the increase of temperature in China. The graphite powder tends to be an adiabatic system at very high temperature.

2. It has super high temperature resistance

Graphite powder is one of the known high-temperature resistant materials. Generally, the material is in the molten state or into gas at more than 2000 ℃, and the graphite powder does not melt. Its melting point is about 3900 ℃, the boiling point of 4250 ℃, and the loss of graphite powder at ultra-high temperature rate is very low. In addition, generally, the strength of materials can be gradually reduced through the development of strength at high temperature, while when graphite is heated to 2000 ℃, its strength effect is twice that at room temperature.

3. Good lubricity

The friction coefficient of graphite powder is less than 0.1, and the lubrication performance becomes large-scale, larger scale, smaller friction coefficient and better lubrication performance. Graphite powder is used for lubrication management. Its advantage over molybdenum disulfide is that it will not affect the generation of pungent smell at high temperature.

4. Excellent thermal shock resistance

Graphite powder has good thermal shock resistance, that is, when the temperature changes suddenly, its thermal expansion coefficient is small, so it has good thermal stability, and graphite related products will not produce cracks.

5. Good chemical stability

At room temperature, graphite has excellent chemical stability, corrosion resistance and acid resistance. It can be an organic solvent. Its disadvantage is that it is easy to be oxidized in high-temperature oxidation medium.

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