Graphite Powder
Size
1≥60%, etc
Package
25kg small bags into ton bags or ton bags
Features
High temperature resistance, conductivity and thermal conductivity, etc.
Application
As refractory material, conductive material and wear-resistant lubricating material, etc.
Graphite powder is a widely used industrial material, which is obtained from high-purity graphite after crushing, grinding, and screening. The classification of graphite powder is mainly based on the particle size, ranging from 50 mesh to 30000 mesh. The larger the mesh, the finer the particle size, and the higher the price.
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Graphite powder is an important industrial raw material in the industry. It is widely used in lubrication, sealing, conductive, high-temperature resistance, refractory, chemical production, and other industrial fields. Graphite powder in the industry should be the most widely used in the field of high-temperature resistance.
In the production of the foundry industry, the casting process is carried out in a high-temperature environment, in order to make the casting not deform and fracture at high temperatures. It is necessary to add cast graphite powder, which can withstand the forging high temperature and make the surface of the casting smooth and free of sand, so as to ensure the quality of the casting.
The melting point of graphite powder is very high, and the graphite powder can bear a temperature of more than 3000 ℃, so graphite powder has good high-temperature resistance. The high-temperature resistance of graphite powder can be used for continuous casting of graphite powder, graphite powder mold detergent, graphite powder crucible, graphite powder refractory brick, lubricating oil, and grease.
Graphite powder crucible, graphite powder refractory brick is added graphite powder, so that they have the property of high-temperature resistance. The disadvantage of commonly used lubricating oil and grease is that they can’t bear high temperatures and can’t play a lubricating role at high temperatures. In the production process of lubricating oil and grease, adding graphite powder can not only increase the lubricating performance of lubricating oil and grease but also improve the high-temperature resistance of lubricating oil and grease. Different properties of graphite powder have different uses in industry. According to different uses of graphite powder, the specification, quality, and price of graphite powder are also different.
White graphite is a kind of functional material with excellent properties. It is usually white powder and has many excellent physical and chemical properties, such as oxidation resistance, corrosion resistance, high thermal conductivity, high resistivity, high dielectric strength, self-lubrication, nonwetting with most metals and semiconductors, etc Thermal conductivity and thermal expansion have obvious anisotropy, which has attracted more and more attention in recent years. What is the use of white graphite powder?
1. Because of its low dielectric constant, high breakdown voltage, and high thermal conductivity, white toner can be used to prepare an insulating layer in microelectronic components. In the traditional silicon-based VLSI, the white graphite insulation film can effectively eliminate the wiring capacitance and improve the response speed of the device;
2. White graphite is often used as a high-temperature lubricant, release agent, and additive for cosmetics, which is warm and pearlescent;
3. It can also be used as filler, mold release agent for casting and injection molding, and composite ceramics, and it is easy to be hot-pressed;
4. And white graphite is very suitable for thermally conductive plastics or thermal conductive rubber.
High-quality natural flake graphite powder has good high-temperature resistance, conductivity, lubricity, and other characteristics. The thermal shock resistance of inferior graphite powder is not good, the effect of oxidation resistance and high-temperature resistance is not obvious, and even has no corrosion resistance.
Good quality graphite powder with its superior performance in all aspects has established an important leading position and future development trend in various industries. We choose high-quality natural flake graphite powder to create greater industrial value. The following section introduces how to choose high-quality graphite powder
1. Color
The graphite powder with good quality is uniform and fine, black and bright, black gray (metallic luster and opaque fine-scale solid); Soft and greasy. The poor quality powder does not shine, particles look rough.
2. Feel
You can pinch it with your hand. The one with good smoothness is high-quality graphite powder, while the one with poor smoothness is poor
3. Calcination
Natural flake graphite powder is calcined at 1200 ℃ to see the color change. The lighter the color, the better the product.
4. Particle size
There are many kinds of graphite powder particle sizes: for example, 20 mesh, 40 mesh, 80 mesh, 100 mesh, 200 mesh, 320 mesh, 500 mesh, 800 mesh, 1200 mesh, 2000 mesh, 3000 mesh, 5000 mesh, 8000 mesh, 12500 mesh, the smallest can be 15000 mesh.
5. Carbon content
The content of carbon is 99%, 95%, 90%, 85%, 80%, and Hanhui graphite is mainly high purity graphite with a carbon content of more than 99%. The higher the carbon content of graphite powder, the better the quality.
6. Price
The price of high-quality natural flake graphite powder is a little higher than other types because of its wide application, high carbon content, and superior performance.
The larger the sieve number and the smaller the particle size of graphite powder, the better the lubrication performance. It can be used in the production of lubricating materials.
It is from the above points that we can distinguish the difference between high-quality graphite powder and low-quality graphite powder. I hope you can choose high-quality graphite powder and create brilliance together.
