High power graphite electrode is produced by low-sulfur content petroleum coke (or needle coke) as raw materials and coal asphalt as binder through calcination, crushing, batching, kneading, molding, baking, impregnation, rebaking, graphitization and machining. Its physical and mechanical properties are higher than regular power graphite electrode, such as low resistivity and large current density.
|
Item |
Unit |
HP |
|
|
φ200-φ700mm |
|||
|
Resistivity |
Electrode |
μΩm |
5.8-6.6 |
|
Nipple |
3.5-4.0 |
||
|
Modulus of Rupture |
Electrode |
Mpa |
10.0-13.0 |
|
Nipple |
20.0-23.0 |
||
|
Young's Modulus |
Electrode |
GPa |
8.0-12.0 |
|
Nipple |
14.0-16.0 |
||
|
Bulk Density |
Electrode |
g/cm3 |
1.64-1.68 |
|
Nipple |
1.75-1.80 |
||
|
CTE (100-600℃) |
Electrode |
10-6/℃ |
1.6-1.9 |
|
Nipple |
1.1-1.4 |
||
|
Ash |
% |
0.3 |
|