The nipples are used to connect two graphite electrodes. TIhe production period is long. The production period of regular power graphite electrodes is about 45 days, the production period of ultra high power graphite electrodes is more than 70 days, and the production period of graphite electrode joints (nipples) requiring multiple impregnation is more longer.
product description
Production characteristics
The nipples are used to connect two graphite electrodes. TIhe production period is long. The production period of regular power graphite electrodes is about 45 days, the production period of ultra high power graphite electrodes is more than 70 days, and the production period of graphite electrode joints (nipples) requiring multiple impregnation is more longer.
The Form & Size of Cone Nipples
Norminal Diameter | Size of Nipple(mm) | Size of socket(mm) | Thread pitch | ||||||||||
mm | in | D | L | d2 | I | d1 | H | ||||||
75 | 3 | 46.04 | 0 -0.5 | 76.20 | 0 -1 | 20.80 | 0 -5 | < 7 | 39.72 | +0.5 0 | 44.1 | +7 0 | 6.35 |
100 | 4 | 69.85 | 101.60 | 40.30 | 63.53 | 56.8 | |||||||
130 | 5.2 | 79.38 | 127.00 | 45.60 | 73.06 | 69.5 | |||||||
150 | 6 | 92.08 | 139.70 | 56.20 | 85.76 | 75.9 | |||||||
175 | 7 | 107.95 | 165.10 | 67.80 | 101.63 | 88.6 | |||||||
200 | 8 | 122.24 | 177.80 | 80.00 | 115.92 | 94.9 | |||||||
225 | 9 | 139.70 | 177.80 | 97.46 | 133.38 | 94.9 | |||||||
250 | 10 | 152.40 | 190.50 | 108.00 | 146.08 | 101.3 | |||||||
300 | 12 | 177.80 | 215.90 | 129.20 | 171.48 | 114 | |||||||
350 | 14 | 203.20 | 254.00 | 148.20 | 196.88 | 133 | |||||||
400 | 16 | 222.25 | 304.80 | 158.80 | 215.93 | 158.4 | |||||||
400 | 16 | 222.25 | 355.60 | 150.00 | 215.92 | 183.8 | |||||||
225 | 9 | 139.70 | 0 -0.5 | 203.20 | 0 -1 | 90.73 | 0 -5 | < 10 | 131.27 | 0 +0.5 | 107.6 | +7 0 | 8.47 |
250 | 10 | 155.57 | 220.00 | 103.80 | 147.14 | 116 | |||||||
300 | 12 | 177.16 | 270.90 | 116.90 | 168.73 | 141.5 | |||||||
350 | 14 | 215.90 | 304.80 | 150.00 | 207.47 | 158.4 | |||||||
400 | 16 | 215.90 | 304.80 | 150.00 | 207.47 | 158.4 | |||||||
400 | 16 | 241.30 | 338.70 | 169.80 | 232.87 | 175.3 |
Technical Properties of Graphite Electrodes & Nipples
Item | Unit | Varieties of Graphite Electrodes | |||
RP | HD | HP | |||
Specific Resistance ≤ | Electrodes (E) | μΩ.m | 8.5 | 8.0 | 7.0 |
Nipple (N) | 8.2 | 7.5 | 6.5 | ||
Flexural Strength ≥ | Electrodes (E) | MPa | 9.8 | 10 | 10.5 |
Nipple (N) | 13.0 | 13.0 | 14.0 | ||
Elastic Modulus ≤ | Electrodes (E) | GPa | 9.3 | 12.0 | 12.0 |
Nipple (N) | 14.0 | 14.0 | 16.0 | ||
Bulk Density ≥ | Electrodes (E) | ɡ/㎝³ | 1.58 | 1.58 | 1.6 |
Nipple (N) | 1.63 | 1.68 | 1.7 | ||
100-600(C.T.E.) ≤ | Electrodes (E) | 10-6/℃ | 2.9 | 2.7 | 2.4 |
Nipple (N) | 2.7 | 2.5 | 2.2 | ||
Ash Content ≤ | Electrodes (E) | % | 0.5 | 0.3 | 0.3 |
Nipple (N) | 0.5 | 0.3 | 0.3 | ||
Real Density ≥ | Electrodes (E) | ɡ/㎝³ | 2.18 | 2.18 | 2.2 |
Nipple (N) | 2.2 | 2.2 | 2.2 |
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