industrial

Graphite has good chemical stability.After special processing of graphite, corrosion resistance, good thermal conductivity, low permeability characteristics, a large number of heat exchangers, reaction tank, condensers, combustion tower, absorption tower, cooler, heater, filter, pump equipment.Widely used in petrochemical industry, hydrometallurgy, acid and alkali production, synthetic fiber, papermaking and other industrial sectors, can save a lot of metal materials.

For casting, aluminum casting, molding and high temperature metallurgical materials: due to the small thermal expansion coefficient of graphite, and ability to the change of thermal shock, can be used as glass mold, after using graphite black metal casting dimension accuracy, the surface is bright and clean high yield, without processing or slightly processing can use, thus saving a large amount of metal.Production of cemented carbide and other powder metallurgy processes, usually made of graphite materials for pressing and sintering porcelain boats.Crystal growth crucible, area refining container, bracket fixture, induction heater and so on are all made of high purity graphite.In addition, graphite can also be used for vacuum smelting of graphite heat insulation board and base, high temperature resistance furnace tube, bar, plate, lattice and other components.

Graphite can also prevent the boiler scale, the relevant unit test shows that the addition of a certain amount of graphite powder in water (about 4~5 grams per ton of water) can prevent the boiler surface scale.In addition, graphite coating on metal chimneys, roofs, Bridges and pipelines can be used to prevent corrosion and rust.

Graphite can be used as pencil lead, pigment, polishing agent.After special processing of graphite, various special materials can be made for relevant industrial departments.

In addition, graphite is also the polishing agent and rustproof agent for glass and paper making in light industry, and is an indispensable raw material for making pencils, ink, black paint, inks and artificial diamonds and diamonds.It is a good energy saving and environmental protection material, the United States has used it as a car battery.With the development of modern science and technology and industry, the application field of graphite is still expanding, has become an important raw material of new composite materials in the high-tech field, has an important role in the national economy.

national defense

Used in atomic energy industry and national defense industry: graphite has a good neutron reducer used in atomic reactors, uranium - graphite reactor is a widely used atomic reactor.As the decelerating material in the power reactor, it should have the characteristics of high melting point, stability and corrosion resistance. Graphite can fully meet the above requirements.Graphite, used in atomic reactors, requires a high purity, with impurities no more than a few dozen PPM.In particular, the boron content should be less than 0.5PPM.Graphite is also used in the defense industry to make nozzles for solid-fuel rockets, nose cones for missiles, parts for space navigation equipment, heat insulation and radiation protection.