ultra-high power graphite electrode
Bulk density : 1.7~1.8 g/cm3
Flexural strength : 10~23Mpa
PRODUCT DESCRIPTION
Ultra-High Power (UHP) graphite electrode is mainly used for ultra high power electric arc furnaces with the current density greater than 25 A/cm2. UHP graphite electrode is used for the recycling of steel in the electric arc furnace industry. Its main ingredient is high-value needle coke which is made from either petroleum or coal tar. Graphite electrodes are finished with a cylinder shape and machined with threaded areas at each end. In this way, the graphite electrodes can be assembled into an electrode column using electrode nipple.
Features:
Withstand large currents, high discharge rate;
Good dimension stability, not easy to deform;
Resistant to cracking & spalling;
High resistance to oxidation and thermal shock;
High mechanical strength, low electrical resistance;
High machining accuracy, good surface finishing.
Application:
UHP Graphite electrodes,semiconductor manufacturing,iron,steel and nonferrous metal making,continuous casting,metallurgy pressing machine
* DC electric Arc Furnace.
* AC electric arc furnace.
* Submerged arc furnace.
* Ladle furnace.
TECHNIQUE DATA
| project | unit | Nominal diametermm | ||||
| 300-400 | 450-500 | 550-650 | 700-800 | |||
| The resistivity ≤ | electrode | μΩm | 6.0 | 6.0 | 6.0 | 6.0 |
| joint | 5.0 | 5.0 | 4.3 | 4.0 | ||
| Flexural strength ≥ | electrode | MPa | 10.5 | 10.5 | 10.0 | 10.0 |
| joint | 20.0 | 20.0 | 22.0 | 23.0 | ||
| Modulus of elasticity ≤ | electrode | GPa | 14.0 | 14.0 | 14.0 | 14.0 |
| joint | 20.0 | 20.0 | 22.0 | 22.0 | ||
| Bulk density ≥ | electrode | g/cm3 | 1.70 | 1.70 | 1.70 | 1.70 |
| joint | 1.75 | 1.75 | 1.80 | 1.80 | ||
| Coefficient of thermal expansion≤ (100℃-600℃) | electrode | 10-6/℃ | 1.5 | 1.5 | 1.5 | 1.5 |
| joint | 1.4 | 1.4 | 1.3 | 1.3 | ||
| ash≤ | % | 0.5 | 0.5 | 0.5 | 0.5 | |
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