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amorphous graphite powder usage

Amorphous graphite powder usage

The most common use of amorphous graphite is three: one is to mix a certain amount of soil (the main component of silica) into a pencil lead; the other is to be a part of mechanical or industrial production of lubricant; the third is as a point solution, plating Or the electrode of the battery; in addition, it is also the raw material for artificially making various other allotropes.
The following materials are more detailed:
1. As refractory material: Graphite and its products have the properties of high temperature resistance and high strength. They are mainly used in the metallurgical industry to manufacture graphite crucibles. In steelmaking, graphite is commonly used as a protective agent for steel ingots and the inner liner of metallurgical furnaces.
2. Conductive material: used in the electrical industry as a positive electrode for the manufacture of electrodes, brushes, carbon rods, carbon tubes, mercury positive flow devices, graphite gaskets, telephone parts, coatings for television picture tubes, etc.
3. Wear-resistant lubricants: Graphite is often used as a lubricant in the machine industry. Lubricating oils are often not used under high speed, high temperature and high pressure conditions, while graphite wear resistant materials can work at high sliding speeds of 200~2000 °C without lubricating oil. Many equipments that transport corrosive media are widely used in graphite materials to make piston cups, seals and bearings. They do not need to be lubricated during operation.

4. Graphite has good chemical stability. Specially processed graphite, which has the characteristics of corrosion resistance, good thermal conductivity and low permeability, is widely used in the manufacture of heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, filters. , pump equipment. Widely used in petrochemical, hydrometallurgy, acid and alkali production, synthetic fiber, paper and other industrial sectors, can save a lot of metal materials.
5. Casting, sanding, compression molding and pyrometallurgical materials: Because graphite has a small thermal expansion coefficient and can withstand rapid cooling and rapid changes, it can be used as a mold for glassware. After using graphite, ferrous metals can be used to obtain accurate casting dimensions and high surface finish yield. It can be used without processing or a little processing, thus saving a lot of metal.
6, for the atomic energy industry and the defense industry: graphite has a good neutron moderator for use in atomic reactors, uranium-graphite reactor is currently a more widely used atomic reactor.
7. Graphite also prevents boiler fouling. Unit tests have shown that adding a certain amount of graphite powder to water can prevent scaling on the boiler surface. In addition, graphite is coated on metal chimneys, roofs, bridges and pipes to prevent corrosion and rust.
8. Graphite can be used as pencil lead, pigment, and polishing agent. After special processing of graphite, various special materials can be produced for the relevant industrial sectors.