APPLICATIONS

Graphite product application

1. As refractory material: Graphite 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. Graphite milk is also a good lubricant for many metal processing.

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.

The type of impervious graphite differs depending on the resin contained and the corrosion resistance varies. For example, the phenolic resin impregnated is acid-resistant, but not alkali-resistant; the decyl alcohol resin is impregnated with both acid and alkali. The heat resistance of different varieties is also different: carbon and graphite can withstand 2000~3000 °C in reducing atmosphere, and oxidize at 350 °C and 400 °C respectively in oxidizing atmosphere; the type of impervious graphite varies with impregnating agent, generally The impregnated by phenolic or decyl alcohol is heat resistant to 180 ° C or less.