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Graphite electrode uhp 500 for refining furnace
Graphite electrode uhp is mainly from the domestic petroleum coke and imported needle coke, graphite electrodes are widely used in electric arc furnace, ladle furnace, submerged arc electric furnace for the production of alloy steel, metal and nonmetallic materials. uhp graphite electrodes with current densities greater than 25 A / cm2 are acceptable. uhp graphite electrodes are mainly used in ultra-high power steelmaking electric arc furnace.
Graphite Electrode UHP Description
UHP graphite electrodes are made of petroleum coke, needle coke as raw material, coal pitch as binder, after calcination, ingredients, kneading, pressing, roasting, graphitization, machining and released in the electric arc furnace steelmaking in the form of an arc Electric energy as a conductor to heat the melting furnace.
Properties of Graphite Electrode UHP
.Ultra high power,
.Graphite electrode,
.Good quality,
.Competitive price.
Advantages of Graphite Electrode UHP
.The surface can be used for the long life of anti oxidation treatment,
.High temperature resistance, corrosion resistance, strong acid resistance,
.Excellent resistance to thermal shock and conduction,
.Good wear resistance, good lubricity and long service life.
Technical Characteristics of the Graphite Electrode UHP
| Name | Unit | diameter of electrode 300mm-600mm | |||
| standard | Actual measurement | ||||
| Electrode | Nipple | Electrode | Nipple | ||
| Specific electrical resistivity | μOhm • m | 6.2-6.5 | 5.5 | 5.0-6.5 | 4.5 |
| Limit of mechanical resistance to bending | MPa | 10.5 | 16 | 14-16 | 18-20 |
| Elastic modulus | GPa | 14 | 18 | 12 | 14 |
| Ash content, not more than | % | 0.5 | 0.5 | 0.5 | 0.5 |
| Bulk density, not less than | g / cm3 | 1.64-1.65 | 1.70-1.72 | 1.72-1.75 | 1.78 |
| Thermal coefficient of linear expansion (100-600 ° C) | × 10-6 / ℃ | 1.5 | 1.4 | 1.3 | 1.2 |
The Length & Diameter & Permissible Deviation of the Graphite Electrode UHP
| Diameter | Length | ||||||
| Nominal diameter | Actual diameter | Nominal length | tolerance | ||||
| Millimeters (mm) | Inch (inch) | Max. (Max.) | Min (min) | mm | Length | the maximum | |
| 300 | 12 | 307 | 302 | 1600 1800 | ± 100 | -100 | -275 |
| 350 | 14 | 357 | 352 | ||||
| 400 | 16 | 409 | 403 | ||||
| 450 | 18 | 460 | 454 | ||||
| 500 | 20 | 511 | 505 | 1600/1800/2000/2200 | ± 100 | -100 | -275 |
| 550 | 22 | 556 | 553 | ||||
| 600 | 24 | 613 | 607 | ||||
Graphite Electrode UHP Current Capacity
| Nominal diameter | Current throughput (A) | The current density (A / cm2) | |
| Millimeters (mm) | Inch (inch) | ||
| 250 | 10 | 9200-15100 | 21-30 |
| 300 | 12 | 13000-22000 | 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 | 48000-60000 | 18-24 | |
| 600 | 24 | 52000-72000 | 18-24 |
| 700 | 27th | 62000-95000 | 18-24 |
Applications of Graphite Electrode UHP
Graphite electrode uhp can be widely used in electric arc furnace and ladle refining furnace for steelmaking. uhp graphite electrodes can be widely used in the electric smelting furnace for producing the ferroalloy, pure silicon, yellow phosphorus, copper matte, calcium carbide and so on.
