Application of graphite powder

Graphite can be used as pencil lead, pigment, polishing agent, after special processing, can be made of a variety of special materials, used in related industrial sectors. So what is the specific use of graphite powder? Here’s an analysis for you.

Graphite powder has good chemical stability. Stone toner after special processing, has the characteristics of good corrosion resistance, good thermal conductivity, low permeability, widely used in the production of heat exchanger, reaction tank, condenser, combustion tower, absorption tower, cooler, heater, filter, pump equipment. Widely used in petrochemical, hydrometallurgy, acid and alkali production, synthetic fiber, paper and other industries, can save a lot of metal materials.

For casting, aluminum casting, molding and high-temperature metallurgical materials: because of graphite thermal expansion coefficient is small, and can occur thermal impact changes, can be used as a glass mold, using graphite black metal casting size precision, smooth surface and high yield, no processing or slightly processing can be used, so as to save a lot of metal. The production of cement carbide powder metallurgy process, usually made from graphite material, sintered with porcelain vessels. Crystal growth furnaces, such as monocrystalline silicon, regional refining vessels, bracket fixtures, induction heaters, etc. are processed from high purity graphite. In addition, graphite can also be used as vacuum smelting graphite insulation board and base, high temperature resistant furnace tube, bar, plate, lattice and other components.

Graphite can also prevent boiler scaling, relevant unit tests show that adding a certain amount of graphite powder in water (about 4~5 grams per ton of water) can prevent boiler surface scaling. In addition, graphite can be used in metal chimneys, roofs, Bridges and pipes.

In addition, graphite or glass and paper in light industry polish and rust inhibitor, is the manufacture of pencil, ink, black paint, ink and synthetic diamond, diamond indispensable raw materials. It is a very good energy saving and environmental protection material, the United States has been using it as a car battery. With the development of modern science and technology and industry, the application of graphite continues to expand, has become an important raw material in the high-tech field of new composite materials, occupies an important position in the national economy.

Used in atomic energy industry and national defense industry: graphite powder has good neutron positron used in atomic reactors, uranium graphite reactor is more used in an atomic reactor. As the power used as the deceleration material for nuclear reactor, it should have high melting point, stability and corrosion resistance, and graphite powder can meet the above requirements. Graphite used in atomic reactors is so pure that impurities should not exceed tens of parts per million. In particular, the content of polone should be less than 0.5PPM. In the defense industry, graphite powder is also used to make nozzles for solid-fuel rockets, nose cones for missiles, parts for space navigation equipment, heat insulation, and radiation protection materials.


Post time: Aug-06-2021