RP graphite electrode
30May
描述
RP石墨电极，称为石墨模塑柱，用作电弧炉的高温导电材料。常规功率石墨电极的允许电流密度小于17 A / cm 2。石墨电极的质量决定了电弧炉炼钢的生产率和成本。
作为制造商，我们还提供 UHP级石墨电极和 HP级石墨电极，用于超高功率或高功率电弧炉。除了用于电弧炉之外，石墨电极还广泛用于埋弧炉和钢包炉。
特征
- 高载流量。
- 出色的抗破损性。
- 高抗氧化和抗热冲击性。
- 尺寸稳定性好，不易变形。
- 机械强度高，电阻低。
- 加工精度高，表面光洁度好。
应用
石墨电极广泛用于合金钢，金属和其他非金属材料等的生产。
偏心底部攻丝电弧炉
RP graphite electrode for EAF steelmaking
RP graphite electrode for regular power EAF
SPECIFICATION
| Dia. (inch) | Resistance (≤, µΩ·m) | Density (≥, g/cm3) | Flexure Strength (≥, MPa) | Elastic Modulus (≤, GPa) | Ash Content (≤, %) | CTE (100 °C – 60 °C) (≤, 10-6/°C) | Current Load (A) | Current Density (A/cm2) |
|---|---|---|---|---|---|---|---|---|
| 8 | 8.5 | 1.53 | 8.5 | 9.3 | 0.5 | 2.9 | 5000–6900 | 15–21 |
| 9 | 8.5 | 1.53 | 8.5 | 9.3 | 0.5 | 2.9 | 6100–8600 | 15–21 |
| 10 | 8.5 | 1.53 | 8.5 | 9.3 | 0.5 | 2.9 | 7000–10000 | 14–20 |
| 12 | 8.5 | 1.53 | 8.5 | 9.3 | 0.5 | 2.9 | 10000–13000 | 14–18 |
| 14 | 8.5 | 1.52 | 7.0 | 9.3 | 0.5 | 2.9 | 13500–18000 | 14–18 |
| 16 | 8.5 | 1.52 | 7.0 | 9.3 | 0.5 | 2.9 | 18000–23500 | 14–18 |
| 18 | 8.5 | 1.52 | 7.0 | 9.3 | 0.5 | 2.9 | 22000–27000 | 13–17 |
| 20 | 8.5 | 1.52 | 7.0 | 9.3 | 0.5 | 2.9 | 25000–32000 | 13–16 |
| 22 | 8.5 | 1.52 | 7.0 | 9.3 | 0.5 | 2.9 | 32000–40000 | 13–16 |
| 24 | 8.5 | 1.52 | 7.0 | 9.3 | 0.5 | 2.9 | 38000–47000 | 13–16 |
| (inch) | (mm) | (max.) | (min.) | (rough spot) | |||
|---|---|---|---|---|---|---|---|
| Nominal Diameter | Actual Diameter | Nominal Length | Tolerance | Short Length | |||
| Diameter (mm) | Length (mm) | ||||||
| 8 | 200 | 205 | 200 | 197 | 1600 | ±100 | -275 |
| 9 | 225 | 230 | 225 | 222 | 1600 | ||
| 10 | 250 | 256 | 251 | 248 | 1600/1800 | ||
| 12 | 300 | 307 | 302 | 299 | 1600/1800 | ||
| 14 | 350 | 357 | 352 | 349 | 1600/1800 | ||
| 16 | 400 | 409 | 403 | 400 | 1600/1800/2000/2200 | ||
| 18 | 450 | 460 | 454 | 451 | 1600/1800/2000/2200 | ||
| 20 | 500 | 511 | 505 | 502 | 1800/2000/2200/2400 | ||
| 22 | 550 | 562 | 556 | 553 | 1800/2000/2200/2400 | ||
| 24 | 600 | 613 | 607 | 604 | 2000/2200/2400 | ||
SURFACE QUALITY
- There should be less than two defects or holes on the electrode surface, the maximum size of which is mentioned in the below chart.
- There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width should be 0.3 mm to 1.0 mm.
- The width of black area on electrode surface should be less than 1/10 of the electrode circumference and the length should be less than 1/3 of the electrode.
| 300–400 | 450–600 | |
|---|---|---|
| SpecificationDefect Dimension | Nominal Diameter of Graphite Electrode (mm) | |
| Diameter (mm) | 20–40 (< 20 mm should be negligible) | 30–50 (< 30 mm should be negligible) |
| Depth (mm) | 5–10 (< 5 mm should be negligible) | 10–15 (< 10 mm should be negligible) |
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