20rp Needle Coke Graphite Electrode Ge In Metallurgy Industry 30-40 % Needle Coke
20RP Graphite Electrode , GE in Metallurgy Industry , 30-40% Needle Coke
Sichuan Guanghan Shida Carbon Co., Lts was established in 2001, formerly the Shanxi Jiexiu Shida Carbon which was founded by Mr Zhang Shigong in 1990.
Shida Carbon’s main products are: Graphite Electrode with Diameter 400-700mm,grade RP,HP,UHP, Isotropic Graphite, 600X800X4400mm Graphite Cathode, high quality Graphite Anode, and Small Medium Grain Size Graphite. Shida is the leading manufacturer of graphite electrode in China and we have full production equipment from raw material to graphitization and maching which graruantee our quality stable. Almost all our production equipment are imported from overseas, such Japan milling system, Japan kneading system, Germany technology car-bottom baking furnace.
Recommended Torque Meter
| Diameter(mm) | Torque Value(N.m) |
| 400 | 1075 |
| 450 | 1375 |
| 500 | 1770 |
| 550 | 2460 |
| 600 | 3440 |
| 650 | 4520 |
| 700 | 6000 |
Instructions:
- Use a proper torque value (see recommended torque value table) to properly lock electrode (see pic.3);
- In order to avoid crushes during furnace charging, please place bulk materials at the furnace bottom; meanwhile please do not place lime or any other non-conductive materials right under the electrodes, otherwise it will decrease electric conduciveness and cause breakage;
- Attention furnace cover’s position in order to avoid scratching or damaging when rising and lowering electrodes;
- If any connection gap observed after jointing, the causes must be identified and eliminated before use;
- Electrode clamper must be hold at the proper position: outside the safety lines of the higher end;
General Properties:
| Item | Unit | UHP | HP | RP | UHP Nipple | HP Nipple | |||
| 450-500mm | 550-700mm | 450-500mm | 550-700mm | 400-450mm | 500-700mm | ||||
| Bulk Density | g/cm3 | 1.66-1.73 | 1.68-1.75 | 1.60-1.70 | 1.62-1.72 | 1.55-1.65 | 1.54-1.64 | 1.80-1.85 | 1.72-1.80 |
| Resistivity | μΩm | 4.8-6.0 | 4.5-5.8 | 5.2-7.5 | 5.5-7.2 | 7.5-9.0 | 8.0-9.5 | 3.0-4.3 | 4.0-6.0 |
| Flexual Strength | MPa | 10.5-15.0 | 10.0-14.0 | 10.5-14.5 | 9.0-13.5 | 8.0-11.0 | 7.0-10.0 | 20.0-30.0 | 18.0-25.0 |
| Elastic Modulus | GPa | 8.0-10.0 | 8.0-12.0 | 6.0-9.3 | 16.0-20.0 | 12.0-16.0 | |||
| CTE (30-600) | 10-6/℃ | ≤1.5 | ≤2.2 | ≤2.8 | ≤1.3 | ≤2.0 | |||
| Ash Content | % | ≤0.3 | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.3 | |||
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