It is flexible braided packing which is made of an innovative expanded pure graphite yarn. It can be used to seal hot water, high temperature and pressure steam, leat transfer fluid, hydrogen gas, ammonia, organic solvents, hydrocarbons, cryogenic liquids, etc., except fewer strong oxidizer .They can be applied to the equipments and devices in peroleum,electricity generation ,chemical ,pharmaceutical and light industries.
Continuous graphite purification furnace is used for continuous high temperature graphitizing purification of graphite powder, which can also complete the purification combined with high temperature method chemical method.
The pusher-type graphite purification furnace is suitable for continuous high temperature graphitizing purification of graphite powder and parts, it can also complete the purification combined with high temperature method and chemical method. Whats more, the furnace can also applied for production of ultra coarse WC(Wolfram Carbide) powder.
Product description:
Copper coated graphite powder is a kind of new material produced by our factory, its specific gravity is higher than graphite and lower than copper, it overcomes the disadvantages of the mechanical mixing powder in the old technology, such as difficult to mix evenly and easy to form segregation due to big density difference ( copper 8.8ã103kg/m3, graphite 2.2ã103kg/m3) and bad dispersibility of graphite powder. At the same time, carbon and copper interface can only be connected by mechanical interlock, the bonding strength between the interfaces is low, which causes unstable product quality. For graphite and copper of high temperature infiltration, even when the temperature is up to 1100â the wetting angle is 140 it is very difficult for graphite to form evenly suspending distribution state in copper solution, and easy to have segregation. The copper coated graphite powder produced by our company is to make the graphite surface to be coated with one layer of continuous copper first, so the graphite distribute evenly between the copper. It is easy for copper to form three-dimensional grid structure, the interface bonding strength is high, which improves the product quality, it can be widely used as adding material in the production of motor brush, self-lubricating bearing, spray, liquid metallurgy material and so on.
Product Introduction
Graphite rods are mostly used in heating elements of high temperature vacuum furnace, it can still work at the temperature of 3000â??,and easy to oxidation at high temperature. they have low coefficient of thermal expansion, high heat conductivity, coefficient of resistance is 8~1310-6m, machinability is better than the sic�mosi2, and they are good resistance to high temperature, price is also cheap.
According to requirements of customers, top graphite rods supplier-DJX Graphite Manufacturing Co., Ltd can customize the graphite rods and other graphite machining products. equipped with domestic advanced processing technology and equipment and experienced machining technical personnel to meet the needs of the graphite market today.
Different specifications:
1.Superfine graphite rod;
2.Fine extruded graphite rod;
3.Medium extruded graphite rod;
4.Large graphite rod
Graphite introduction
Graphite is an allotrope of carbon element, each carbon atom of the neighboring link also three carbon atoms (arrangement is multiple hexagon honeycomb) by covalent bonds with the covalent molecule is formed. Because each carbon atom emits an electron, the electrons are free to move, so the graphite is a conductor. Graphite is one of the most soft minerals, and its use includes the manufacture of pencil cores and lubricants.
Graphite application
1, as a refractory material: graphite and its products have properties of high - strength, high temperature resistance, mainly used to produce graphite crucible in the metallurgical industry, in steelmaking in graphite is usually used for the protection of steel ingot agent, metallurgical furnace lining.
2, as the conductive material: used for manufacturing electrode, carbon brush, carbon rod, carbon nanotubes, mercury is the cathode in electrical industry, graphite gaskets, telephone parts, TV picture tube coating.
3, as wear-resistant lubricating material: Graphite in the mechanical industry as a lubricant. Lubricating oils are often not used in high speed, high temperature and high pressure conditions, and graphite wear resistant materials can be used at high sliding speed in 200~2000. Many of the devices that transport corrosive media are widely used in the piston cup, seal rings and bearings, which are widely used in graphite materials. Graphite is many metal processing (drawing, drawing) the good lubricant.
4, graphite has good chemical stability. After special processing of graphite, with corrosion resistance, good thermal conductivity, low permeability characteristics, which is widely used in the manufacturing of heat exchanger, reaction tank, condenser, the burning tower, absorption tower, a cooler, a heater, a filter, a pump device. Widely used in petrochemical, wet metallurgy, acid and alkali production, synthetic fiber, paper and other industrial sectors, can save a lot of metal materials.
The corrosion resistance of the different types of non transparent graphite is different because of the different resin. Such as phenolic resin impregnated are acid, but not alkali resistant; furfuryl alcohol resin impregnated both acid and alkali. Heat tolerance of different varieties also have differences: carbon and graphite in a reducing atmosphere can be resistant to 2000 to 3000 DEG C, in an oxidizing atmosphere respectively in 350 and 400 degrees Celsius oxidation; impermeable graphite varieties with impregnating vary, generally by the heat-resistant phenolic or furfuryl alcohol immersed in 180 DEG C below.
We produce the best quality graphite crucibles and dies with the best quality isostatic graphite for jewellery industry.
We offer casting crucibles, melting crucibles, and graining crucibles for all casting machines.
Beijing Great Wall Co.,Ltd.,are a manufacturer of graphite & carbon products in China and one of the competitive graphite suppliers all over the world .
GW ’s commitment is to supply high quality graphite material, carbon and graphite composites, formed graphite parts.
Please feel free to contact us via savi at bjgreatwall dot cn if you have any enquiry or questions.
Graphite crucible is suitable for smelting
copper¡¢aluminum¡¢gold¡¢silver¡¢lead¡¢zinc¡¢
alloys other nonferrous metals. The graphite
material chosen is isostatic graphite¡¢
high strength graphite¡¢high density graphite.
