石墨电极具有良好的导电性能和化学性能,在高温下机械强度高、抗震性能好、是热和电的良好导体,广泛应用于炼钢的电弧炉、精炼炉,生产铁合金、工业硅、黄磷、刚玉等矿热炉及其其它用电弧炉产生高温的熔炼炉中。
石墨电极技术指标 Technical Quota of Graphite Electrodes
项目ITEM | 单位UNIT | 普通功率电极RP | 高功率电极HP | 超高功率电极UHP | |||
8-12inch φ200-300mm | 14-24inch φ350-600mm | 8-12inch φ200-300mm | 14-24inch φ350-600mm | 12-20inch φ300-500mm | |||
电阻率不大于 Resistivity≤ | 电极Electrode | μΩ·m | 9.00 | 9.00 | 7.00 | 7.50 | 6.20 |
接头Nipple | 8.50 | 8.50 | 6.50 | 6.50 | 5.50 | ||
抗折强度不小于 | 电极Electrode | Mpa | 7.80 | 6.40 | 10.50 | 9.80 | 10.50 |
接头Nipple | 13.00 | 13.00 | 14.00 | 14.00 | 16.00 | ||
弹性模量不大于 | 电极Electrode | Gpa | 9.30 | 9.30 | 12.00 | 12.00 | 14.00 |
接头Nipple | 14.00 | 14.00 | 16.00 | 16.00 | 18.00 | ||
体积密度不小于 | 电极Electrode | g/cm3 | 1.52 | 1.52 | 1.60 | 1.60 | 1.65 |
接头Nipple | 1.68 | 1.68 | 1.70 | 1.70 | 1.72 | ||
灰分不大于 | 电极Electrode | % | 0.50 | 0.50 | 0.30 | 0.30 | 0.30 |
接头Nipple | |||||||
热膨胀系数不大于 CTE≤ | 电极Electrode | 10-6/℃ 100-600℃ | 2.90 | 2.90 | 2.40 | 2.40 | 1.50 |
接头Nipple | 2.80 | 2.80 | 2.20 | 2.20 | 1.40 |
石墨电极允许电流负荷 Suggested Current-carrying Capacities of Electrodes
公称直径 | 允许电流负荷(A) Suggested Current-carrying Capacities | |||
英寸Inch | 毫米mm | 普通功率电极RP | 高功率电极HP | 超高功率电极UHP |
3 | 75 | 1000-1400 |
| |
4 | 100 | 1500-2400 |
| |
5 | 130 | 2200-3400 |
| |
6 | 150 | 3500-4900 |
| |
8 | 200 | 5000-6900 | 5500~9000 |
|
10 | 250 | 7000-10000 | 8000~13000 |
|
12 | 300 | 1000-13000 | 13000~17400 | 13000~22000 |
14 | 350 | 13000-18000 | 17400~24000 | 20000~30000 |
16 | 400 | 18000-23500 | 21000~32000 | 25000~40000 |
18 | 450 | 22000-27000 | 25000~40000 | 32000~45000 |
20 | 500 | 25000-32000 | 30000~48000 | 38000~55000 |
24 | 600 | 37000-45000 | 44000~67000 |
石墨电极规格及允许偏差 Specifications ﹠Allowance of Graphite Electrodes
直径Diameter mm | 长度 Length mm | ||||||
公称直径 | 实际直径 Actual Diameter | 公称长度 | 允许偏差 | ||||
毫米mm | 英寸inch | 最大max | 最小min | mm | inch | 公称长度 | 短尺长度 Short Length |
200 | 8 | 205 | 200 | 1600 | 60 | ±100 | -275 |
250 | 10 | 256 | 251 | 1600 1800 | 60 72 | ||
300 | 12 | 307 | 302 | ||||
350 | 14 | 357 | 352 | ||||
400 | 16 | 409 | 403 | 1800 2000 | 72 79 | ||
450 | 18 | 460 | 454 | ||||
500 | 20 | 511 | 505 | ||||
600 | 24 | 613 | 607 |
圆锥形接头形状及尺寸 The Form ﹠Size of Cone Nipple
(单位:毫米)
电极直径 Electrode diameter | 接头 Nipple | 接头孔 Nipple hole | 螺距 Thread pitch | |||||||||
D | L | d2 | I | d1 | H | |||||||
250 | 155.58 | 0 -0.50 | 220.10 | 0 -1 | 103.80 | 0 -5 | <10 | 147.14 | +0.50 0 | 113.05 | +7 +0 | 8.47 |
300 | 177.17 | 270.90 | 116.90 | 168.73 | 138.45 | |||||||
350 | 215.90 | 304.80 | 150.00 | 207.47 | 155.40 | |||||||
400 | 215.90 | 304.80 | 150.00 | 207.47 | 158.40 | |||||||
400 | 241.30 | 338.70 | 169.80 | 232.87 | 175.30 | |||||||
450 | 241.30 | 338.70 | 169.80 | 232.87 | 175.30 | |||||||
450 | 273.05 | 355.60 | 198.70 | 264.62 | 183.80 | |||||||
500 | 273.05 | 355.60 | 198.70 | 264.62 | 183.80 | |||||||
500 | 298.45 | 372.60 | 221.30 | 290.02 | 192.20 | |||||||
200 | 122.24 | 0 -0.50 | 177.80 | 0 -1 | 80.00 | 0 -5 | <7 | 115.92 | +0.50 0 | 91.90 | +7 +0 | 6.35 |
250 | 152.40 | 190.50 | 108.00 | 146.08 | 101.30 | |||||||
300 | 177.80 | 215.90 | 129.20 | 71.48 | 114.00 | |||||||
350 | 203.20 | 254.00 | 148.20 | 196.88 | 133.00 | |||||||
400 | 222.25 | 304.80 | 158.80 | 215.93 | 158.40 | |||||||
400 | 222.25 | 355.60 | 150.00 | 215.93 | 183.80 | |||||||
450 | 241.30 | 304.80 | 177.90 | 234.98 | 158.40 | |||||||
450 | 241.30 | 355.60 | 169.42 | 234.98 | 183.80 | |||||||
500 | 269.88 | 355.60 | 198.00 | 263.56 | 183.80 | |||||||
500 | 269.88 | 457.20 | 181.08 | 263.56 | 234.60 | |||||||
550 | 298.45 | 355.60 | 226.58 | 292.13 | 180.80 | |||||||
550 | 298.45 | 457.20 | 209.69 | 292.13 | 234.60 | |||||||
600 | 317.50 | 355.60 | 245.63 | 311.18 | 183.80 | |||||||
600 | 317.50 | 457.20 | 228.70 | 311.18 | 234.60 |