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 production of heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, filters, and pump equipment. It is widely used in the petrochemical industry, hydrometallurgy, acid and alkali production, synthetic fiber, papermaking, and other industrial sectors, and can save a lot of metal materials.
Used for casting, sand foundry, stamping, and high-temperature metallurgical materials: Since graphite has a small thermal expansion coefficient and can withstand rapid cooling and heating changes, it can be used as a mold for glassware. After using graphite, black metal can be used to obtain castings with accurate dimensions and smooth surfaces. The yield is high and can be used without processing or with a little processing, thus saving a lot of metal. In powder metallurgy processes such as cemented carbide production, graphite materials are usually used to make stamping molds and porcelain boats for sintering. Single-crystal silicon crystal growth crucibles, regional refining vessels, bracket fixtures, induction heaters, etc., are all processed from high-purity graphite. In addition, graphite can also be used as graphite insulation boards and bases for vacuum smelting, high-temperature resistance furnace tubes, rods, plates, grids, and other components.
Graphite can also prevent boiler scaling. Tests by relevant units have shown that adding a certain amount of graphite powder to water (approximately 4 to 5 grams per ton of water) can prevent boiler surface scaling. In addition, graphite coating on metal chimneys, roofs, bridges, and pipes can prevent corrosion and rust.
Graphite can be used as pencil lead, pigment, and polishing agent. After special processing, graphite can be made into various special materials for use in relevant industrial sectors.
In addition, graphite is also a polishing agent and rust inhibitor for glass and paper in the light industry. It is an indispensable raw material for the manufacture of pencils, ink, black paint, ink, and artificial diamonds, and diamonds. It is a very good energy-saving and environmentally friendly material, and has been used as car battery in the United States. With the development of modern science, technology, and industry, the application fields of graphite are still expanding, and it has become an important raw material for new composite materials in high-tech field,s and plays an important role in the national economy.