Performance characteristics of ultra-high power graphite electrode in 200 arc furnace
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Technical parameters of ultra-high power graphite electrode in 350 arc furnace
Specification for the Use of Ultra-High Power Graphite Electrodes in 350 Electric Arc Furnace
Points to note for the use of graphite electrodes:
1, wet graphite electrode, dry before use.
2, remove the foam protective cap on the spare graphite electrode hole, check whether the inner thread of the electrode hole is complete.
3, clean up spare graphite electrode surface and hole thread with compressed air without oil and water; Avoid cleaning sand cloth with steel or metal brushes.
4, carefully rotating the connector into the electrode hole at one end of the backup graphite electrode(it is not recommended to load the connector directly into the electrode removed from the furnace), not to collide threads.
5, the electrode hanging equipment(recommended graphite hanging equipment) into the electrode hole at the other end of the backup electrode.
6, when lifting the electrode, loosen the soft material to the bottom of the end of the standby electrode connector to prevent the ground from hitting the connector; Lift the pendant ring with a hook, and the lifting electrode must be stable to prevent the electrode from loosening from the B end or colliding with other fixing devices.
7, hanging the spare electrode to the top of the electrode to be connected, pointing at the electrode hole and slowly falling; Rotate the backup electrode so that the spiral hook rotates with the electrode to drop; When the two electric extremes are 10-20mm apart, the exposed parts of the two ends and joints of the electrode are cleaned again with compressed air; When the electrode is finally completely decentralized, it must not be too violent. Otherwise, due to violent collisions, the electrode holes and joints will be damaged.
Unscrew the backup electrode with a torque wrench until the end surfaces of the two electrodes are in close contact(the correct connection between the electrode and the joint is less than 0.05 mm)
SPECIFICATION
Table 1: Technical Specification of UHP Graphite Electrode
|
Dia.
|
Resistance
|
Density
|
FlexureStrength
|
ElasticModulus
|
AshContent
|
CTE
|
CurrentLoad
|
CurrentDensity
|
|
(inch)
|
(≤,µΩ·m)
|
(≥,g/cm3)
|
(≥,MPa)
|
(≤,GPa)
|
(≤,%)
|
(100°C–600°C)
|
(A)
|
(A/cm2)
|
|
|
|
|
|
|
|
(≤,10-6/°C)
|
|
|
|
10
|
5.2
|
1.67
|
10.5
|
14
|
0.3
|
1.5
|
8100–12200
|
20–30
|
|
12
|
5.2
|
1.70
|
10.5
|
14
|
0.3
|
1.5
|
15000–22000
|
20–30
|
|
14
|
5.2
|
1.70
|
10.5
|
14
|
0.3
|
1.5
|
20000–30000
|
20–30
|
|
16
|
5.2
|
1.70
|
10.5
|
14
|
0.3
|
1.5
|
25000–40000
|
19–30
|
|
18
|
5.2
|
1.70
|
10.5
|
14
|
0.3
|
1.5
|
32000–45000
|
19–27
|
|
20
|
5.2
|
1.70
|
11
|
14
|
0.3
|
1.4
|
38000–55000
|
18–27
|
|
22
|
5.2
|
1.72
|
11
|
14
|
0.3
|
1.4
|
42000–66000
|
17–26
|
|
24
|
4.8
|
1.72
|
11
|
14
|
0.3
|
1.4
|
49000–76000
|
17–26
|
Table 2: Graphite Electrode Size & Tolerance
|
Diameter(mm)
|
Length(mm)
|
|
NominalDiameter
|
ActualDiameter
|
NominalLength
|
Tolerance
|
ShortLength
|
|
(inch)
|
(mm)
|
(max.)
|
(min.)
|
(roughspot)
|
|
10
|
250
|
256
|
251
|
248
|
1600/1800
|
±100
|
-275
|
|
12
|
300
|
307
|
302
|
299
|
1600/1800
|
|
14
|
350
|
357
|
352
|
349
|
1600/1800
|
|
16
|
400
|
409
|
403
|
400
|
1600/1800/2000/2200
|
|
18
|
450
|
460
|
454
|
451
|
1600/1800/2000/2200
|
|
20
|
500
|
511
|
505
|
502
|
1800/2000/2200/2400
|
|
22
|
550
|
562
|
556
|
553
|
1800/2000/2200/2400
|
|
24
|
600
|
613
|
607
|
604
|
2000/2200/2400/2700
|
