HP Graphite Electrode for Alumina Plant
By applying an anti-oxidation coating to the graphite electrode, the oxidation of the graphite electrode can be reduced, and at the same time, the graphite electrode smelted in the electric furnace will not pollute the hot melt to the raw material.
The chemical composition of the anti-oxidation coating material is similar to that of the total reaction, which effectively reduces the problem of decarburization of graphite electrodes in the production of white corundum, and effectively improves the purity of white corundum.
HP graphite electrode specification
We can customize products as per the customer’s actual operational parameters.
Item | Unit | RP | HP | UHP | ||||
≤∅400 | ≥∅450 | ≤∅400 | ≥∅450 | ≤∅400 | ≥∅450 | |||
Electric Resistivity | Electrode | μΩ*m | ≤8.5 | ≤9.0 | ≤6.0 | ≤6.5 | ≤5.0 | ≤5.5 |
Nipple | ≤6.5 | ≤6.5 | ≤5.5 | ≤5.5 | ≤4.5 | ≤4.5 | ||
Transverse Strength | Electrode | MPa | ≥8.0 | ≥7.0 | ≥10.5 | ≥10.5 | ≥15.0 | ≥15.0 |
Nipple | ≥16.0 | ≥16.0 | ≥20.0 | ≥20.0 | ≥22.0 | ≥22.0 | ||
Young’s Modulus | Electrode | Gpa | ≤9.3 | ≤12.0 | ≤14.0 | |||
Nipple | ≤14.0 | ≤16.0 | ≤18.0 | |||||
Bulk Density | Electrode | g/cm3 | ≥1.54 | ≥1.65 | ≥1.68 | |||
Nipple | ≥1.69 | ≥1.73 | ≥1.76 | |||||
Coefficient of Termal Expansion (100℃﹣600℃) | Electrode | 100-6/℃ | ≤2.5 | ≤2.0 | ≤1.5 | |||
Nipple | ≤2.0 | ≤1.6 | ≤1.2 | |||||
Ash | % | ≤0.3 | ≤0.2 | ≤0.2 | ||||
Production process of graphite electrode
Why the HP graphite electrode use for alumina plant ?
A. Specially impregnation anti-oxidation treatment to graphite electrodes in order to reduce its consumption rate.
B. Needle coke applied for anti-oxidation and longer service life.
C. Higher strength avoid breakage during application.
D. Continuous and stable quality.
E. Graphite electrodes application engineers are available to provide after-sales service and technical supports.
HP graphite electrode certificate
HP graphite electrode packing requirement
Graphite electrode is packaged by wooden cages and nipple is packaged by wooden boxes. Graphite electrode and nipple can be packaged together according to the requirements of the customers. The products are protected by waterproof and dustproof plastic inside and fixed by steel bands, fit for road and sea transportation.
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