EAF High Power HP 600mm Graphite Electrode 2100mm 2400mm 2700mm Length
HP 600mm Graphite Electrode
Grade: High Power
Applicable furnace: EAF
Length: 2100mm/2400mm/2700mm
Nipple:3TPI/4TPI
Payment: T/T, L/C
Shipping Term: EXW/FOB/CIF
MOQ:10TON
- Product Details
| Typical Properties of Graphite Electrode | |||||
| Properties | Position | Unit | UHP | HP | |
| 300-600mm | 650-800mm | 300-800mm | |||
| Specific Resistance | Body | m | 4.8-5.8 | 4.6-5.8 | 5.8-6.6 |
| Nipple | 3.8-4.5 | 3.8-4.5 | 4.2-5.0 | ||
| Bending Strength | Body | Mpa | 10.0-14.0 | 10.0-14.0 | 10.0-13.0 |
| Nipple | 20.0-26.0 | 20.0-26.0 | 18.0-22.0 | ||
| Young's Modulus | Body | Gpa | 9.0-13.0 | 10.0-14.0 | 8.0-12.0 |
| Nipple | 15.0-18.0 | 15.0-18.0 | 14.0-16.0 | ||
| Bulk Density | Body | g/cm3 | 1.68-1.74 | 1.70-1.74 | 1.62-1.66 |
| Nipple | 1.77-1.82 | 1.78-1.84 | 1.74-1.80 | ||
| CTE(100-600°C) | Body | ×10 -6/C | 1.1-1.4 | 1.1-1.4 | 1.6-1.9 |
| Nipple | 0.9-1.2 | 0.9-1.2 | 1.1-1.4 | ||
| Ash Content | % | 0.3 | 0.3 | 0.3 |
Compared with copper, graphite has advantages such as less consumption, faster discharge rate, lighter weight and smaller thermal expansion coefficient, so it gradually replaces copper electrode to become the mainstream of discharge processing materials. According to the capacity of the electric furnace, graphite electrodes of different diameters are used. For continuous use of the electrodes, the electrodes are connected by the threaded joint of the electrodes. The graphite electrodes used in steel making account for about 70-80% of the total consumption of the graphite electrodes.
Graphite electrode consumption and breakage is common in practice. What causes these? Here is the analysis for reference.
| Factors | Body Breakage | Nipple Breakage | Loosening | Spalling | Electtode Loss | Oxidation | Electorde Consumption |
| Non-conductors in charge | ◆ | ◆ | |||||
| Heavy scrap in charge | ◆ | ◆ | |||||
| Transformer overcapacity | ◆ | ◆ | ◆ | ◆ | ◆ | ◆ | |
| Three phase imbalance | ◆ | ◆ | ◆ | ◆ | ◆ | ||
| Phase Rotation | ◆ | ◆ | |||||
| Excessive Vibration | ◆ | ◆ | ◆ | ||||
| Clamper Pressure | ◆ | ◆ | |||||
| Roof electrode socket not align with electrode | ◆ | ◆ | |||||
| Cooling water sprayed on electrodes above roof | △ | ||||||
| Scrap preheating | △ | ||||||
| Secondary voltage too high | ◆ | ◆ | ◆ | ◆ | ◆ | ||
| Secondary current too high | ◆ | ◆ | ◆ | ◆ | ◆ | ◆ | |
| Power too low | ◆ | ◆ | ◆ | ◆ | ◆ | ||
| Oil consumption too high | ◆ | ◆ | ◆ | ||||
| Oxygen Consumption too high | ◆ | ◆ | ◆ | ||||
| long time heating | ◆ | ||||||
| Electrode dipping | ◆ | ◆ | |||||
| Dirty connection part | ◆ | ◆ | |||||
| Poor maintenance for lift plugs and tightening tools | ◆ | ◆ | |||||
| Insufficient connection | ◆ | ◆ | |||||
| ◆ Stands for being good factors | |||||||
| △ Stands for being bad factors | |||||||
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