超高功率石墨电极
超高压石墨电极的物理化学性能
|
Items |
Classification |
Unit |
Nominal Diameter (mm) |
|||
|
250-400 |
450-500 |
550-650 |
700-800 |
|||
|
Resistivity |
Electrode |
μΩm ≤ |
6.2 |
6.3 |
6.0 |
5.8 |
|
Nipple |
5.3 |
5.3 |
4.5 |
4.3 |
||
|
Bending Strength |
Electrode |
Mpa ≥ |
10.5 |
10.5 |
10.0 |
10.0 |
|
Nipple |
20.0 |
20.0 |
22.0 |
23.0 |
||
|
Young’s Modulus |
Electrode |
Gpa ≤ |
14.0 |
14.0 |
14.0 |
14.0 |
|
Nipple |
20.0 |
20.0 |
22.0 |
22.0 |
||
|
Bulk Density |
Electrode |
g/cm3 ≥ |
1.67 |
1.66 |
1.66 |
1.68 |
|
Nipple |
1.74 |
1.75 |
1.78 |
1.78 |
||
|
CTE（100℃-600℃） |
Electrode |
×10-6/℃ ≤ |
1.5 |
1.5 |
1.5 |
1.5 |
|
Nipple |
1.4 |
1.4 |
1.3 |
1.3 |
||
|
Ash Content |
Electrode |
% ≤ |
0.5 |
0.5 |
0.5 |
0.5 |
|
Nipple |
||||||
注：灰分仅供参考。
UHP石墨电极的推荐电流负载
|
Grade |
Nominal Dia. |
Allowable current A |
Current density A/cm2 |
||
|
UHP electrode |
|
AC |
DC |
AC |
DC |
|
300mm |
15000～22000 |
|
20～30 |
|
|
|
350mm |
20000～30000 |
- |
20～30 |
- |
|
|
400mm |
25000～40000 |
- |
19～30 |
- |
|
|
450mm |
32000～45000 |
- |
19～27 |
- |
|
|
500mm |
38000～55000 |
- |
18～27 |
- |
|
|
550mm |
45000～65000 |
49000～78000 |
18～27 |
20～32 |
|
|
600mm |
50000～75000 |
58000～93000 |
18～26 |
20～32 |
|
|
650mm |
60000～85000 |
60000～110000 |
18～25 |
20～30 |
|
|
700mm |
70000～120000 |
79000～130000 |
18～30 |
20～30
|
|
