Imported graphite powder and domestic graphite powder

Graphite powder is a very widely used industrial material. It is obtained by crushing, grinding, and sieving high-purity graphite. The classification of graphite powder is mainly based on the particle size, ranging from 50 mesh to 30,000 mesh. The larger the particle size, the higher the price. In the past, my country’s technology was not up to the level, and high-end graphite powders were imported. However, my country’s production enterprises have introduced foreign advanced milling equipment to produce fine-grained graphite powder in the world, which has been used in many fields at home and abroad.

Due to the characteristics of graphite powder, graphite powder is widely used in chemical, petroleum, metallurgy, casting, lubrication, sealing, and other industrial fields. Next, follow me to learn about the industrial applications of graphite powder:

Graphite powder has high electrical and thermal conductivity, high melting point, good lubricity, plasticity, and chemical stability. Graphite powder can be corroded by acids, alkalis, organic solvents, etc.

Graphite powder can be used as a conductive material to make electrodes, brushes, carbon tubes, carbon rods, and coatings for television picture tubes in the electrical industry. Graphite powder can be used as a refractory material, can be used to make graphite crucible, steel making as a protective agent for steel ingots, etc.

Graphite powder can be used as a lubricating material and as a lubricant in the machinery industry. Graphite powder can be used in molds and metallurgical materials in metallurgical casting. Graphite powder can also be widely used in sealing and lubricating the joints of industrial equipment in the chemical industry.

Graphite powder products include nano graphite powder, high-purity graphite powder, colloidal graphite, flexible graphite plate, flexible graphite packing ring, gelatin powder, graphite milk, graphite packing, graphite powder for ultra-low molybdenum batteries, etc. They are widely used in chemical, petroleum, metallurgy, casting, lubrication, sealing, and other industrial fields.

Graphite powder is a chemically sensitive substance. Its resistivity will change in different environments, that is, its resistance value will change, but one thing will not change. Graphite powder is a very good non-metallic conductive material. One, as long as the graphite powder is kept uninterrupted in the insulating object, it will be energized like a thin line. However, there is no exact number for the resistance value, because the thickness of the graphite powder is different. The resistance value of graphite powder will be different in different materials and environments.

1) High-temperature resistant type: The melting point of graphite is 3850±50°C and the boiling point is 4250°C. Even after high-temperature arc burning, the weight loss is very small, and the thermal expansion coefficient is also very small. The strength of graphite increases with the increase of temperature. At 2000°C, the strength of graphite doubles.

2) Electrical and thermal conductivity: The electrical conductivity of graphite is one hundred times higher than that of general non-metallic minerals. The thermal conductivity exceeds that of metal materials such as steel, iron, and lead. Thermal conductivity decreases with increasing temperature, even at high temperatures, graphite becomes an insulator.

3) Lubricity: The lubricating performance of graphite depends on the size of the graphite flakes. The larger the flakes, the smaller the friction coefficient and the better the lubricating performance.

4) Chemical stability: Graphite has good chemical stability at room temperature, and is resistant to acids, alkalis, and organic solvents.

5) Plasticity: Graphite has good toughness and can be connected into very thin flakes.

6) Thermal shock resistance: Graphite can withstand drastic changes in temperature without being damaged when used at room temperature. When the temperature changes suddenly, the volume of graphite will not change much and no cracks will occur.

Our various graphite powders, lubricating graphite powders, conductive graphite powders, nano graphite powders, high-purity graphite powders, graphite powder meshes are 150 mesh, 425 mesh, 1000 mesh, 3000 mesh, 5000 mesh, 6500 mesh, 12500 Mesh, 15000 mesh, etc. The product has a purity of more than 99.95%, and can be mainly used as: positive and negative electrode materials for lithium batteries, conductive agents for nickel-hydrogen nickel-cadmium batteries, superconducting conductive powders for other batteries; conductive powders for anti-corrosion; conductive coatings, and conductive inks Powder; graphite sheet for CPU radiator; precision casting coating, release agent

High-purity graphite ultra-fine powder includes colloidal graphite powder, and colloidal graphite powder of various specifications such as No. 001, No. 01, No. 1 (carbon content 99.99%): -100 mesh, -200 mesh, -325 mesh,- 400 mesh, -600 mesh, -800 mesh, -1200 mesh, -2000 mesh, -3000 mesh, -5000 mesh, -8000 mesh, -10000 mesh, -12000 mesh, 10um%, 5um%, 3um%, 2um%, 1um%, and other various specifications and models, mainly for slender pens, fine-grained, thin, grease, dry batteries, conductive coatings, lubricating coatings, scientific research by the National Defense Science and Technology Commission, scientific research institutions, and civilian electricity, Aerospace special purpose and strategic power interference weapons, smoke screen shielding weapons detection, etc.

Properties of graphite powder:

Gray-black hexagonal micro-powder with layered crystals, with a metal shell, has a smooth touch, high dispersion, and does not emit light. At the time, immature, only use concentrated nitric acid or chloric acid to reinforce the battery treatment, you can get harmless graphitic acid or lead oxide; absorb carbon at 420 and consume and sex intelligently; and the product is only a physical cognition and an unconscious reaction PH, soybean and good thermal stability, performance, performance, plasticity and weather resistance, alkali resistance, organic solvent resistance, and outstanding lubricity, but will lose its lubricity under vacuum conditions.

With the development of the times, China’s graphite powder technology is becoming more and more sophisticated, and it can also produce finer and better graphite powders, and it is more and more comparable with imported graphite powder. Therefore, compared with imported graphite, people are now increasingly inclined to choose domestic graphite powder.