Graphite powder has good chemical stability. Specially […]
Graphite powder has good chemical stability. Specially processed graphite has the characteristics of corrosion resistance, good thermal conductivity, and low permeability. It is widely used in the manufacture of heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, filters , Pump equipment. It is widely used in petrochemical industry, hydrometallurgy, acid-base production, synthetic fiber, papermaking and other industrial sectors, which can save a lot of metal materials.
Used as casting, sand-turning, compression mold and high-temperature metallurgical materials: Due to the small thermal expansion coefficient of graphite and resistance to rapid cooling and heat changes, it can be used as a casting mold for glassware. After using graphite, the ferrous metal can obtain accurate casting size and high surface finish rate. It can be used without processing or a little processing, thus saving a lot of metal. Production of powder metallurgy processes such as cemented carbide, usually using graphite materials to make ceramic boats for stamping and sintering. Single crystal silicon crystal growth crucibles, area refining vessels, support fixtures, induction heaters, etc. are all made of high-purity graphite. In addition, graphite can also be used as a vacuum smelting graphite insulation board and base, high temperature resistance furnace tube, rod, plate, grid and other components.
Graphite can also prevent boiler fouling. Tests by relevant units have shown that adding a certain amount of graphite powder to the water (approximately 4 to 5 grams per ton of water) can prevent boiler surface fouling. In addition, graphite is coated on metal chimneys, roofs, bridges, and pipes to prevent corrosion and rust.
Graphite can be used as pencil lead, pigment and polishing agent. After special processing of graphite, various special materials can be made and used in relevant industrial sectors.
In addition, graphite is also a polish and rust inhibitor for glass and paper in the light industry. It is an indispensable raw material for the manufacture of pencils, inks, black paints, inks and artificial diamonds and diamonds. It is a very good energy-saving and environmentally friendly material, which has been used as a car battery in the United States. With the development of modern science and technology and industry, the application field of graphite is still expanding. It has become an important raw material for new composite materials in the high-tech field, and plays an important role in the national economy.