High Power Graphite Electrodes for Metal Melting - Diameter 200-700mm
High Power Graphite Electrodes for Metal Melting - Diameter 200-700mm
GP - impregnated cutting products. They are made from petroleum coke of coal tar pitch. In addition, in order to achieve a better welding effect, they are additionally impregnated with pitch. It gained its wide popularity in the metal casting industry, in ferroalloy furnaces and electric arc apparatus.
- E - electrode;
- G - graphite;
- P - impregnated;
- HP - for medium power DC arc furnaces.
Each electrode is supplied with a nipple. At the request of the customer, the nipples can be supplied separately from the electrodes or in addition to the set. Electrodes with a diameter of 75 to 200 mm inclusive and nipples for them are made with a cylindrical thread, and electrodes with a diameter of 250 mm or more and nipples for them are made with a tapered thread.
In order to eliminate the unwinding of the conical nipple joint during vibration of the electrodes in the furnace, the nipples to the electrodes can be made with grooves and equipped with stopper plugs or stopper paste.
Technical Data:
| ITEM | Regular power | High power | Ultra High Power | ||||
| UNIT | 3-24inch | 4-24inch | 14-24inch | 12-20inch | 22-28inch | ||
| φ75-600mm | φ100-300mm | φ350-600mm | φ300-500mm | φ550-700mm | |||
| Resistivity | Electrode | μΩ·m | 7.0-9.0 | 5.8-6.8 | 5.5-6.5 | 4.8-5.8 | 4.5-5.5 |
| Nipple | 4.0-4.5 | 4.0-5.0 | 3.5-4.0 | 3.0-4.0 | 2.5-3.5 | ||
| Bending stregth | Electrode | Mpa | 8.0-12.0 | 9.0-12.0 | 10.0-14 | 10.0-15.0 | 12.0-16.0 |
| Nipple | 19.0-22.0 | 16.0-20 | 20.0-23.0 | 20.0-24.0 | 22.0-25.0 | ||
| Elastic Modulus | Electrode | Gpa | 7.0-11.0 | 8.0-12.0 | 8.0-12.0 | 9.0-13.0 | 10.0-14.0 |
| Nipple | 12.0-14.0 | 12.0-15.0 | 14.0-16.0 | 15.0-18.0 | 16.0-19.0 | ||
| Bulk density | Electrode | g/cm3 | 1.60-1.65 | 1.68-1.70 | 1.68-1.72 | 1.70-1.75 | 1.70-1.75 |
| Nipple | 1.75-1.8 | 1.78-1.82 | 1.78-1.82 | 1.78-1.85 | 1.8-1.85 | ||
| Ash | Electrode | % | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 |
| Nipple | |||||||
| Electrode | 10-6/ºC | 2.0-2.4 | 1.6-2.0 | 1.6-1.9 | 1.1-1.4 | 1.1-1.4 | |
| CTE | Nipple | 100-600ºC | 1.8-2.2 | 1.1-1.5 | 1.1-1.4 | 0.9-1.2 | 0.9-1.2 |
* High density, high temperature resistance, high mechanical strength and strong chemical stability.
* The surface can be treated with anti-oxidation.
* Corrosion resistance, strong acid and alkali resistance.
* Excellent thermal shock resistance, electrical conductivity and thermal conductivity.
* Strong wear resistance and lubricating performance.
* Long service life.
Application:
1. Be used for Steelmaking arc furnaces, refining furnace, as conducting electrode.
2. Be used for Metal-silicon furnace, Or-giraffe furnace, Corundum furnace etc. As conducting
electrode
Properties:
1. Good electrical conductivity.
2. Strong thermal shock resistance.
3. High mechanical strength.
Variety:
1. RP (Regular Power)
2. HP (High Power)
3. UHP (Ultra High Power)
4. RPI (Regular Power Impregnated)
(Notice: All of Graphite Electrodes is equipped to tapered nipple
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