Graphite can be widely used in advanced structural refractory materials and coatings in the metallurgical industry, such as magnesium carbon bricks, crucibles, stabilizers for military explosive materials, desulfurization plasticizers in the smelting industry, pencil cores in the light industry, carbon brushes in the electrical industry, and battery industry Electrodes, catalysts for the fertilizer industry, etc. After continuous in-depth processing, Qianlong Graphite Company can produce a graphite emulsion for other lubricants, mold release agents, wire drawing agents, conductive coatings, etc. Expanded graphite can also be used as a raw material for flexible graphite products, such as flexible graphite seals and flexible graphite composite products. The reason why it is so widely used is mainly because graphite powder has the following five advantages:
1. Has good thermal conductivity and electrical conductivity
The conductive network performance of graphite powder is good. Although it cannot be compared with aluminum, iron, copper and other metal enterprises, its conductivity is quite high compared with other common building materials, which is 3 times that of carbon steel, and that of stainless steel. 5 times, 100 times higher than other research nonmetal composite materials. Graphite powder develops heat insulation under ultra-high temperature conditions, which is different from the general use of metal structural materials. The thermal conductivity of general metals increases with increasing temperature in China. Graphite powder tends to be an adiabatic system at extremely high temperatures.
2. With super high temperature resistance
Graphite powder is one of the known high temperature resistant materials. Generally, the material is more than 2000 ° C, typically in a molten state or a gas, and graphite powder does not melt, its melting point is about 3900 ° C, the boiling temperature of 4250 ° C And the loss of graphite powder at very high temperature rate is very low. In addition, generally, the strength development of the material can be gradually reduced at high temperature, and when graphite is heated to 2000 ℃, its strength effect is doubled compared with normal temperature.
3. Good lubricity
The friction coefficient of graphite powder is less than 0.1, and the lubricating performance has become large and small. The larger the scale, the smaller the friction coefficient, the better the lubricating performance. The advantage development of graphite powder used in the lubrication management industry over molybdenum disulfide is that it will not affect the pungent odor at high temperatures.
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 can be organic solvents, its disadvantage is that it is easy to oxidize in high temperature oxidizing medium.