graphite felt

详情

Characteristic of graphite felt :

1.Lower thermal conductivity and specific heat help improve the hear insulation and save energy consume and reduce the duration of rise or lower temperature when equipments running well

2.Not adsorbed moisture then beneficial to reduce the time as extract vacuum

3.High application temperature up to ***0°Cin vacuum furnace and up to ***0°Cin inert

4.High purity that have no pollution effect upon the treated material

5.Easily to processing may be cut into the size by a small knife

6. graphite felt adsorption small, to water vapour adsorption of gas, such as low temperature treatment than low carbon felt two orders of magnitude. For many need a vacuum container equipment is closed, the atmosphere is dramatically is key parameters, and low temperature processing carbon adsorption and felt because in container vacuum is hard to take clean.

7. graphite felt strong ability thermal oxidation resistance. Without the graphitization of carbon materials structure is a disorderly layer structure, all kinds of structure of the defects exist that make its level spacing of larger, vulnerable to attack the oxygen and oxidation. While the high temperature of graphite felt with the grid work of the perfect and orderly three dimensional arrangement that level spacing considerably reduced and are less susceptible to attack the oxygen, thus greatly enhance oxidation resistance.

8. graphite felt high purity, carbon content of *9.5% or more, not to be processed workpiece cause pollution. Low temperature and carbon content in carbon felt processing general lower than *3%, easy to cause the furnace, the pollution of the environment.

manufacture craft

 With the Polyacrylonitrile Flat felt as the raw material , after high temperature treatment system ,then get the carbon felt,Widely applied in all kinds of high temperature and vacuum furnace of insulation heat preservation material, also can be used as reinforcing material of the Carbon composites . Because of there are *0% Air gap in the carbon felt . It is Superior performance, stability when usd as the Heat insulating materials in the Vacuum furnace or inert gas high temperature environment .With the Advantage of light quality, soft, low specific heat , Good adiabatic , the operation convenience.

 
Application

Main application in a single coking furnace, the furnace, ShiYingLu, vacuum furnace, induction furnace, high frequency furnace and heat balance reactor, heat treatment furnace, sintering furnace, welding stove, high pressure furnace of high temperature, such as heat preservation of the furnace and refractory materials. In the chemical industry can be used as high purity corrosive chemical reagents filter materials. Graphite felt in the oxidation atmosphere condition, use temperatures up to ***0 °C or so.

 
the difference of Carpet and carbon graphite felt

Graphite is better than the carbon carpet felt the carbonization temperature higher; The heat temperature more is to improve a lot, its high carbonation temperature can ensure service life of the product. Moreover due to high temperature carbonization, felt contain impurities, make handles process by more convenient. Divided into *0 mm thickness hard felt, *0 mm, *0 mm, *0 mm, *0 mm and so on many kinds of specifications, the surface can be coated graphite and graphite thin cloth, C/C, SiC materials.
Carbon felt in vacuum or inert atmosphere by more than ***0 °C under high temperature treatment for graphite felt, carbon content than carbon felt high, of more than *9%. Graphite felt for selecting the original felt divided into polyacrylonitrile cornerstone ink and glue cornerstone ink felt felt two. Polyacrylonitrile cornerstone ink than glue foundation felt power, ink felt antioxidant ability, but the poor flexibility, volume density, good thermal insulation performance. They besides have high purity of massive graphite, high temperature resistance, corrosion resistance, don't melt characteristics outside, still have the flexibility, can be arbitrary fold, clipping and usable graphite yarn suture advantages. Graphite felt main use is as monocrystalline silicon smelting furnace of the heat preservation material. In the chemical industry can be used as high purity corrosive chemical reagents filter materials. Graphite felt in the oxidation atmosphere condition, use temperatures up to ***0 °C or so