300mm High Power Graphite Electrode for EAF - Factory Direct
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 500 m.t./month
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Specification
HP Graphite Electrode
Graphite electrode introduction
Graphite electrodes are used mainly in electric arc furnace steel production. They are presently the only products available that have the high levels of electrical conductivity and the capability of sustaining the extremely high levels of heat generated in this demanding environment. Graphite electrodes are also used to refine steel in ladle furnaces and in other smelting processes.
Item | Unit | Nominal Diameter | ||||||
UHP | HP | RP | ||||||
Φ300-400 | ≥Φ450 | Φ250-400 | ≥Φ450 | Φ250-400 | Φ450-600 | |||
Electric Resistivity | electrode | μΩ·m | ≤5.0 | ≤5.5 | ≤6.0 | ≤6.5 | ≤8.5 | ≤9.0 |
Nipple | ≤4.0 | ≤4.5 | ≤5.5 | |||||
Transverse Strength | electrode | MPa | ≥15.0 | ≥10.5 | ≥8.0 | ≥7.0 | ||
Nipple | ≥24.0 | ≥20.0 | ≥16.0 | |||||
Young’s Modulus | electrode | GPa | ≤14.0 | ≤12.0 | ≤9.3 | |||
Nipple | ≤18.0 | ≤16.0 | ≤14.0 | |||||
Bulk Density | electrode | g/cm3 | ≥1.68 | ≥1.65 | ≥1.54 | |||
Nipple | ≥1.76 | ≥1.74 | ≥1.70 | |||||
Coefficient of thermal expansion | electrode | 10-6/℃ | ≤1.5 | ≤2.0 | ≤2.5 | |||
Nipple | ≤1.2 | ≤1.6 | ≤2.0 | |||||
Ash | % | ≤0.2 | ≤0.2 | ≤0.2 | ||||
HP Graphite Electrode
1,The high power graphite electrode uses Fushun petroleum coke,Japanese imports of needle coke and temperature modified asphalt as raw material,in accordance with the high power graphite electrode production processes,crushing,screening,dosing,kneading,forming,baking,hi pressure impregnation,the second time of baking,graphitization and machining refined.
2,The nipple uses Japanese imports of needle coke,three times of baking processes.
- Q: What are the factors affecting the service life of graphite electrode in ultra high power arc furnace?
- The ultra high power graphite electrodes produced in China are 300mm, 350mm, 400mm, 450mm, 550mm, 600mm, 650mm, 500mm and 700mm, with lengths of 1600mm, 1800mm, 2000mm, 2200mm, 2400mm and 2700mm.
- Q: Classification, uses and manufacturers of graphite electrodes
- Graphite as electrode(1) the processing speed is faster: normally, the mechanical processing speed of graphite can be 2~5 times faster than copper, while the discharge processing speed is 2~3 times faster than copper;More material is not easily deformed: obvious advantages in the processing of thin electrodes; copper softening point at about 1000 degrees, easily deformed by heat; graphite sublimation temperature is 3650 degrees; the thermal expansion coefficient of copper is only 1/30.(2) lighter weight: the density of graphite is only 1/5 of copper. When large electrode is used for discharge machining, it can effectively reduce the burden of machine tools (EDM). It is more suitable for large-scale die applications.
- Q: After electrolysis of CuCl2 solution with graphite electrode for a period of time, we can observe that the graphite surface attached to the DC power supply is attached to the red material,And will the color of the solution be deep or shallow?
- During electrolysis, cations move toward the cathode, electrons are reduced at the cathode, anions are moved toward the anode, electrons are lost at the anode and oxidized. And you use both sides of the graphite rod, is inert electrode, so there will be no copper ions added to the solution, copper in the solution of consumption, the color of natural shallow.
- Q: Graphite electrode in milling machine processing, dust is especially big, boot 5 minutes, workshop can not open the figure, what is the solution?
- This is to use the dust collector, the graphite itself is a semiconductor, can not be electrostatic dust removal
- Q: Why should graphite paper be placed between the heater and the graphite electrode?
- Heater design, the common heater has three shapes, cylinder, cup, spiral, the vast majority of the current heater is cylindrical, as shown in figure. The spiral heater has complicated processing technology and has been eliminated. Cup shaped heater for hemispherical crucible, the bottom melt temperature is more uniform, because the processing technology is difficult, already no use. Nowadays, most of them use cylinder heaters. The cylindrical heater is not only easy to process, but also is related to the large number of flat crucible used in the direct drawing single crystal furnace.
- Q: Electrolytic water solution, two electrodes are graphite electrode, the negative electrode can produce large amounts of hydrogen, the anode does not produce half of oxygen, and only a small amount of it?
- Anodic iron is directly oxidized without oxygen generation
- Q: How does graphite produce solar cells?
- The team at the Massachusetts Institute of Technology has confirmed that electrodes based on graphene and ITO devices are comparable in efficiency. Although the power conversion efficiency of graphene is 4.2% lower than that of a general silicon cell, it will be competitive for special use in the future.
- Q: The graphite electrode made by the machining center adopts cooling method, which is water cooled, oil cooled and blow cold. Which is good?
- Use oil cold. Air cooling will cause graphite dust flying, on the one hand, toxic, on the one hand there are security risks (caused by circuit short circuit). Water cooling is virtually out of use, taking into account the maintenance and maintenance of the CNC.
- Q: Carbon graphite electrode and what is the difference?
- The material is composed of carbon carbon, but without graphite, after molding sintering temperature is only more than 1000 degrees, no graphitization.
- Q: Jiqiu conductive graphite electrode, how to compare with copper is relatively large resistance value?
- This is not a good estimate of the sheet graphite resistance after 5mm
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300mm High Power Graphite Electrode for EAF - Factory Direct
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 500 m.t./month
OKorder Service Pledge
OKorder Financial Service
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