SGL graphite R8500, R8510, R8650

SGL R8340 R8500X R8510 R8650 R8500

copper graphite can not be compared with the following quality characteristics:

processing speed: High speed milling rough times higher than copper block 3; high-speed milling finishing times than the copper block 5

good machinability and can achieve complex geometric shapes

light weight, less than the density of copper 1/4, easy clamping electrode

can reduce the number of individual electrodes, because the combination of electrodes can be made binding

thermal stability, deformation and no processing glitches

nature of graphite electrodes , use , 1
classification and technical standards
First, the nature of graphite
the crystallization of graphite carbon minerals. 1565 years as a mineral is found, 1779 to determine its composition of carbon, 1789 years named " graphite " (in Greek " wrote " meaning.) Graphite color is black color, crystal hexagonal plates, but rare, generally showed a thin sheet or flake-like, earthy aggregates for aphanitic body. Soft, the hardness is small, Mohs hardness 1-2, can contaminate the paper. Proportion 2.1 - 2.3. Aaaaa a group with a very complete cleavage.


room temperature, graphite has good chemical stability to acid, alkali, organic solvents, corrosion resistance, but the high temperature, oxidation.

Second, the use of graphite
because graphite has many excellent properties, which in the metallurgical, mechanical, electrical, chemical, textile, defense and other industries widely applied.
1 do refractories
One of the main purposes of graphite is the production of refractory materials, including bricks, crucibles, continuous casting powder, mold cores, mold detergents and high temperature materials .

crucible and related products with a graphite-made molding and refractory crucible and its related products such as crucibles, retorts, stopper heads and nozzles, etc., with high fire resistance, low thermal expansion, melting metal process, by metal infiltration and when erosion is also stable, good thermal shock under high temperature stability and excellent thermal conductivity, so the graphite crucible and its related products are widely used process of molten metal directly .
2
steel
graphite and other impurities in the material for the steel industry can be used as carbon agent. Carburizing carbon material used in a wide range, including the artificial graphite, petroleum coke, metallurgical coke and natural graphite. Worldwide agents graphite carbon steel is still one of the main purposes of graphite earthy.

3 conductive material
graphite is widely used in the electrical industry as electrodes, brushes, carbon rod, carbon tubes, mercury rectifier cathode, graphite gaskets, telephone parts, TV picture tube coating and so on. Among the most widely used graphite electrodes in various kinds of smelting steel, iron alloy, the use of graphite electrodes, then a strong electric current through electrodes into the melting zone, arc, so that electrical energy into heat energy, temperature to 2000 degrees to achieve the melting or anti- should be the goal. In addition, electrolysis of magnesium, aluminum, sodium, the cell's anode is also used graphite electrodes. Production of silicon carbide resistance furnace with graphite electrodes are conductive materials for the burner.

4 for wear and lubrication materials
often graphite as lubricant in the machinery industry. Lubricants are often not in the high-speed, high temperature and high pressure conditions of use, and wear resistant graphite material can -200 --- 2000 temperature and at very high speeds without sliding oil work. Many transport corrosive media equipment, extensive use is made of graphite materials, piston rings, seals and bearings, they are running, do not need added oil, graphite is a lot of metal processing (Roberts, trombone) is a good lubricant.

5 for corrosion-resistant materials
Graphite has good chemical stability. After special processing of graphite, corrosion resistant, thermal conductivity, low permeability, and is widely used in production of heat exchangers, reactors, condensation control, burning tower, absorption tower, chillers, heaters, filters, , pumps and other equipment. These devices are used in petrochemical, hydrometallurgy, acid production, synthetic fiber, paper and other industrial sectors, can save a lot of metal materials.

6 for casting, foundry, die and high temperature metallurgical materials
the graphite expansion coefficient, and thermal shock capability changes, the mold can be used as glassware, the use of graphite, black metal by the casting dimensional accuracy, smooth surface, high yield, without processing, or a little processing to can be used, thus saving a lot of metal.

7 for the atomic energy industry and defense industry
rust-proof material for scaling
8
graphite to prevent boiler scaling, the unit tests showed that the water by adding a certain amount of graphite powder (about a ton of water used 4-5g) , to prevent the boiler surface scaling. Besides graphite coated metal chimney, roof, bridge, pipeline corrosion and rust can be.

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semiconductor graphite mold, fuel cell plate, graphite substrate, cut silicon rods with graphite pad, lined with electron beam evaporation of graphite, glass, metal packaging graphite boat, electronic sintering graphite mold, graphite parts ion implantation,
single crystal graphite furnace hot zone and so on.
heat treatment furnace with carbon graphite products -
for large industrial furnace or vacuum furnace in a variety of heating elements, heating room, hearth, heating pipe, bracket,
interconnect, regulating boards, connectors, conductive rod joint, heaters, heat room, trays, burn boxes, graphite plate and so on. Sintered diamond tools
- die of carbon graphite products
specific products: graphite composite molds, clay molds, oil drill bit with gage ring and the nozzle rod
non-ferrous metal smelting and processing of graphite products, carbon -
specific products: graphite crucible, graphite boat dish, graphite mold casting, melting gold crucible, graphite shunt, graphite sleeve,
graphite mold, flow nozzle, welding metal cable melting crucible, in addition to gas with a mixer, rotor pole and the impeller.
machinery for industrial use of carbon graphite products -
specific products: graphite seal ring, seal stationary ring, graphite bearings, lubrication column, graphite leaf, dipping all kinds of metal or 
resin mechanical seal parts.
chemical equipment, silicon carbide furnace, graphite furnace for carbon graphite products -
chemical equipment, silicon carbide furnace, graphite furnace-specific fine structure of graphite electrodes and tiles
fine grain graphite tiles used in silicon carbide furnace, graphite furnace and other metallurgical furnace lining and conductive materials to do, but also for chemical equipment, impermeable graphite heat exchanger, and the graphite mold.