UHP Electrodes
UHP Electrodes Description
UHP stands for Ultra High Power, referring to a category of graphite electrodes with extremely high power capacity. These ultra-high power graphite electrodes are produced using premium needle coke and undergo a graphitization process at temperatures reaching 2800 to 3000℃ in a string of graphitization furnaces, followed by heat treatment. Due to their lower resistivity, smaller coefficient of thermal expansion, and excellent resistance to thermal shock, they do not crack or break, allowing for higher current density, reduced smelting time, and increased production efficiency. UHP electrodes are suitable for use in ultra-large power electric arc furnaces with power levels ranging from 500 to 1200 kV.A/t.
The Specifications of Electrodes UHP
| ITEM | UHP | ||||
| (YB/T4090-2015) | ZhenAn Standard | (YB/T4090-2015) | ZhenAn Standard | ||
| 300-500 | 550-700 | ||||
| Electric Resistance Max.(µΩ-m) |
Electrode | 6.2 | 5.0 | 5.8 | 5.0 |
| Nipple | 5.3 | 3.5 | 4.3 | 3.5 | |
| Flexural Strength Min(Mpa) |
Electrode | 10.5 | 14.0 | 10.0 | 14.0 |
| Nipple | 20.0 | 25.0 | 23.0 | 25.0 | |
| Elastic Modulus (Max.) Gpa |
Electrode | 14.0 | 12.0 | 14.0 | 12.0 |
| Nipple | 20.0 | 18.0 | 22.0 | 18.0 | |
| Bulk Density (Min.) g/cm3 |
Electrode | 1.7 | 1.7 | 1.7 | 1.7 |
| Nipple | 1.8 | 1.8 | 1.8 | 1.8 | |
| C.T.E Max(100-600)℃ |
Electrode | 1.5 | 1.3 | 1.5 | 1.3 |
| Nipple | 1.4 | 1.0 | 1.3 | 1.0 | |
| Ash(Max.) °/o | Electrode | 0.5 | 0.3 | 0.5 | 0.3 |
Standard Sizes of Electrode: If special specification requirements exist, both sides consult supply & demand.
Current Carrying Capacity
| Nominal diameter | Ultra High Power | ||
| mm | inch | Current carrying capacity(A) | Current density (A/cm²) |
| 300 | 12 | 15000-22000 | 20-30 |
| 350 | 14 | 20000-30000 | 20-30 |
| 400 | 16 | 25000-40000 | 19-30 |
| 450 | 18 | 32000-45000 | 19-27 |
| 500 | 20 | 38000-55000 | 18-27 |
| 550 | 22 | 45000-65000 | 18-27 |
| 600 | 24 | 50000-75000 | 18-26 |
| 650 | 26 | 60000-85000 | 18-25 |
| 700 | 28 | 70000-120000 | 18-30 |
If there are special specification requirements, both sides consult supply and demand.
Graphite Electrode UHP Video
Packaging of Ultra High Power Graphite Electrodes
Wooden Pallets:
Electrodes are placed on strong wooden pallets to provide a stable base for handling.
Protective Covers:
Wrapping electrodes in protective covers like plastic or shrink wrap safeguards them from moisture and dust.
Foam or rubber sheets may be used for additional cushioning.
Steel Bands:
Electrodes are secured to pallets with steel bands to prevent movement during transport.
End Caps:
Plastic or rubber end caps protect the threaded ends of the electrodes from damage.
Packing Frames:
For enhanced protection, especially during long-distance shipments, electrodes may be placed within metal or wooden packing frames.
Handling and Storage of Graphite Electrode UHP
Moisture Protection:
UHP Electrodes must be kept dry to prevent damage; waterproof covers and desiccants can be used.
Stacking and Stability:
Proper stacking techniques ensure stability and prevent toppling.
Temperature Control:
Store UHP electrodes in a cool, dry environment to maintain their integrity.
FAQ
Q:how can we guarantee quality?
A:Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q:why should you buy from us not from other suppliers?
A:Fast response to customers, short production cycle, and rich experience in producing.
Q : How do you control your quality?
A : For each production process, ZhenAn has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.
Q: What is your delivery time?
A : Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
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