China OEM Hp Graphite Electrodes Nipples - UHP 550mm Graphite Electrode – Hexi
China OEM Hp Graphite Electrodes Nipples - UHP 550mm Graphite Electrode – Hexi Detail:
Graphitization is a very important stage in UHP graphite electrode production. It refers to the high-temperature heat treatment process of carbon products above 2300 ℃ in a high-temperature electric furnace to convert amorphous chaotic layer structure carbon into a three-dimensional ordered graphite crystal structure.
What’s the funtion of graphitization?
*Improve the electrical and thermal conductivity
*Improve the thermal shock resistance and chemical stability (the linear expansion coefficient is reduced by 50-80%);
*Make the carbon material have lubricity and wear resistance;
*Discharge impurities and improve the purity of the carbon material (the ash content of the product is reduced from 0.5% to about 0.3%).
| Comparison Technical Specification for UHP Graphite Electrode 22″ | ||
| Electrode | ||
| Item | Unit | Supplier Spec |
| Typical Characteristics of Pole | ||
| Nominal Diameter | mm | 550 |
| Max Diameter | mm | 562 |
| Min Diameter | mm | 556 |
| Nominal Length | mm | 1800-2400 |
| Max Length | mm | 1900-2500 |
| Min Length | mm | 1700-2300 |
| Bulk Density | g/cm3 | 1.68-1.72 |
| transverse strength | MPa | ≥12.0 |
| Young’ Modulus | GPa | ≤13.0 |
| Specific Resistance | µΩm | 4.5-5.6 |
| Maximum current density | KA/cm2 | 18-27 |
| Current Carrying Capacity | A | 45000-65000 |
| (C.T.E) | 10-6℃ | ≤1.2 |
| ash content | % | ≤0.2 |
| Typical Characteristics of Nipple (4TPI) | ||
| Bulk Density | g/cm3 | 1.78-1.84 |
| transverse strength | MPa | ≥22.0 |
| Young’ Modulus | GPa | ≤18.0 |
| Specific Resistance | µΩm | 3.4～3.8 |
| (C.T.E) | 10-6℃ | ≤1.0 |
| ash content | % | ≤0.2 |
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we could supply good quality goods, aggressive cost and very best purchaser assistance. Our destination is "You come here with difficulty and we supply you with a smile to take away" for China OEM Hp Graphite Electrodes Nipples - UHP 550mm Graphite Electrode – Hexi, The product will supply to all over the world, such as: Croatia, Boston, Russia, Customer satisfaction is our goal. We are looking forward to cooperating with you and providing our best services to suit your needs. We warmly welcome you to contact us and make sure you feel free to contact us. Browse our online showroom to see what we can do for you. And then E-mail us your specs or inquiries today.
By Juliet from Melbourne - 2017.02.28 14:19
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By Diana from Munich - 2017.04.28 15:45
