Learn about graphite powder in a minute!

Graphite powder introduction

Graphite powder is soft and dark gray. Under isolating oxygen condition, its melting point is above 3000 ℃. It is one of the high temperature resistant minerals. At room temperature, graphite powder chemical properties are relatively stable, insoluble in water, dilute acid, dilute alkali and organic solvents; React with oxygen at different high temperatures to produce carbon dioxide or carbon monoxide; In halogen, only fluorine can react directly with simple carbon; At high temperature, it can also react with many metals to produce metal carbides, which can be smelted at high temperature. 

Graphite powder application

1. As refractory material:

Graphite and its products have the properties of high temperature resistance and high strength. In the metallurgical industry, graphite is mainly used to manufacture graphite crucible. In steelmaking, graphite is often used as the protective agent of steel ingots and the lining of metallurgical furnaces.

 2. As conductive material:

In the electrical industry, it is used to make electrodes, brushes, carbon rods, carbon tubes, graphite gaskets, telephone parts, coating of TV picture tubes, etc.

 3. As wear-resistant lubricating material:

Graphite is often used as a lubricant in the machinery industry. Lubricating oil can not be used at high speed, high temperature and high pressure, while graphite wear-resistant materials can work without lubricating oil at 2000 ℃. Many equipment transporting corrosive media are widely made of graphite materials, such as piston cups, sealing rings and bearings. They do not need to add lubricating oil during operation. Graphite emulsion is also a good lubricant for many metal processing (such as wire drawing and tube drawing).

4. As casting, sanding, molding and high-temperature metallurgical materials:

Due to its small thermal expansion coefficient and resistance to rapid cooling and heating changes, graphite can be used as a mold for glassware. After using graphite, ferrous metals can obtain castings with accurate dimensions, smooth surface and high yield. It can be used without processing or slight processing, thus saving a lot of metal.

5. As polish agent and anti-rust agent:

Graphite is also a polishing agent and anti-rust agent for glass and paper in light industry. It is an indispensable raw material for manufacturing pencils, ink, black paint, printing ink, artificial diamonds and diamonds.

Colloidal graphite powder in graphite powder is mainly used for pen, powder metallurgy, lubricating oil, grease, dry battery, conductive coating, lubricating coating, scientific research of the commission of science, technology and industry for national defense and scientific research institutions, civil nuclear power, aerospace, strategic power interference, smoke screen, etc. It has become an important raw material for new composite materials in the high-tech field and plays an important role in national economy. More information about graphite powder industry, please contact us for details.