Aplikasi bubuk grafit

(Aplikasi bubuk grafit)

bubuk grafit ngabogaan karasa 1 ka 2, beurat husus tina 1.9 ka 2.3, sarta titik golak tina 4250 ° C. It is one of the minerals resistant to high temperatures, but it is relatively stable at room temperature. Graphite powder is an ideal raw material for refractory materials and conductive materials. Let's get to know graphite powder now!

 

kahiji, the definition of graphite powder.

 

Bubuk grafit lemes sareng kulawu poék; it has a greasy feel and can contaminate paper. Teu karasa téh 1 ka 2, and the hardness can be increased to 3 ka 5 kalawan ngaronjatna pangotor dina arah vertikal. Gravitasi spésifik nyaéta 1.9 ka 2.3. Under the condition of being isolated from oxygen, titik lebur na luhur 3000 ℃, and it is one of the most temperature-resistant minerals. Chemical properties of graphite powder are relatively stable at room temperature, teu leyur dina cai, asam éncér, éncér alkali jeung pangleyur organik; react with oxygen at different high temperatures to form carbon dioxide or carbon monoxide; only fluorine in halogen can directly react with elemental carbon; under heating, Graphite powder is more natural to be oxidized by acids; dina suhu luhur, it can also react with many metals to form metal carbides, which can smelt ores at high temperatures.

 

Kadua, the use of graphite powder.

 

1.National defense

 

Dipaké dina industri énergi atom jeung industri pertahanan nasional: graphite has a good neutron moderator used in nuclear reactors. Uranium and graphite reactors are one of the most widely used atomic reactors. As a deceleration material in a nuclear power reactor for power, it should have a high melting point, stabilitas, sarta lalawanan korosi. Graphite can completely meet the above requirements. The purity of graphite used in atomic reactors is very high, and the impurity content should not exceed tens of PPM. Khususna, boron content should be less than 0.5 PPM. In the defense industry, graphite is also used to make nozzles for solid-fuel rockets, congcot irung pikeun misil, parts for space navigation equipment, bahan insulasi termal, and anti-ray materials.

 

2.Industri

Graphite has excellent chemical stability. Grafit anu diolah khusus ngagaduhan ciri tahan korosi, konduktivitas termal alus, sarta perméabilitas low. It is widely used in the manufacture of heat exchangers, tank réaksi, condensers, munara durukan, munara nyerep, coolers, pamanas, jeung saringan. Pump equipment. Widely used in petrochemical, wet metallurgy, acid and alkali production, serat sintétik, papermaking, and other industrial sectors, can save a lot of metal materials.

 

Graphite can be used as casting, sand turning, molding komprési, and high-temperature metallurgy materials: Because graphite has a small thermal expansion coefficient and can withstand rapid and rapid changes, it can be used as a mold for glassware. After graphite is used, ferrous metal can obtain accurate casting dimensions and a smooth surface High rate, can be used without processing or a little processing, thus saving a lot of metal. Production of powder metallurgy processes such as cemented carbide, graphite materials is usually used to make stampers and porcelain boats for sintering. Crystal growth crucibles for single crystal silicon, regional refining vessels, holder fixtures, induction heaters, jsb. are all processed with high-purity graphite. Salaku tambahan, graphite can also be used for vacuum smelting of graphite heat insulation plates and bases, high-temperature resistance furnace tubes, rods, piring, grids, and other components.

 

Graphite can also prevent boiler scaling. Related tests have shown that adding a certain amount of graphite powder (kira-kira 4 ka 5 grams per ton of water) can prevent scaling on the boiler surface. Salaku tambahan, graphite can be applied to metal chimneys, hateup, sasak, and pipes to avoid corrosion and rust.

 

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

 

Salaku tambahan, 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, inks, black paints, inks, and artificial diamonds and diamonds. It is a perfect energy-saving and environmental-friendly material, and it 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 essential raw material for new composite materials in the high-tech area and plays a vital role in the national economy.

Produsén grafit kualitas luhur

Upami anjeun peryogi bubuk grafit, mangga ngarasa Luncat ngahubungan: sales@graphite-corp.com

(Aplikasi bubuk grafit)