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High Power Graphite Electrodes
High Power Graphite Electrodes are manufactured with the
high quality raw materials, including the petroleum cokes
produced in Fushun No. 2 Petroleum Factory,the coal tar pitch
produced in Anshan and 30% needle pitch cokes imported from
Japan,according to the HP electrode productive technology.
The production processes are including calcining, dosing,
kneading, extruding, baking, high impregnation, rebaking,
graphitizing, machining etc. And electrodes are matched with
UHP nipples, manufactured with 100% needle pitch cokes imported
from Japan, according to the technology of triplicate impregnation
and quadruple baking.
Specification of High Power G.E.
|
ltems
|
Unit
|
Nominal diameter
|
|
300-400
|
450-500
|
|
Specific resistance
not over
|
Electrode
Nipple
|
μΩ.m
|
6.5
5.5 |
7.0
5.5 |
|
Transverse strength
not below
|
Electrode
Nipple
|
MPa
|
11.0
14.0 |
10.2
14.0 |
|
Elastic modulus not
over
|
Electrode
Nipple
|
GPa
|
12.0
16.0 |
12.0
16.0 |
|
Ash content not over
|
Electrode
Nipple
|
%
|
0.2 |
0.2 |
|
Bulk density not below
|
Electrode
Nipple
|
g/cm3
|
1.62
1.72 |
1.62
1.72 |
|
(C.T.E)not over
|
Electrode
Nipple
|
10-61/°C
|
2.4
2.2 |
2.4
2.2 |
Allowable Current of High Power G.E.
|
Nominal
diameters
|
Allowable current
|
Current desity
|
|
mm
|
A
|
A/cm2
|
|
300
|
13000-17400
|
17-24
|
|
350
|
17400-24000
|
17-24
|
|
400
|
21000-31000
|
16-24
|
|
450
|
25000-40000
|
15-24
|
|
500
|
30000-48000
|
15-24
|
|
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