Graphite Electrode
Sort： Graphite ElectrodeProduct Description: The production process of graphite electrode includes batching, mixing and kneading, molding, roasting, impregnation, graphitization and machining, etc. The main equipments include 35MN Vertical Pounding Horizontal Pusher Extruder, 25MN Vertical Pounding Horizontal Pusher Extruder, 36 chambers open ring roasting furnace, impregnation system, internal string graphitization furnace, fully automatic joint and body production line.
Indices Of physics And Chemistry Of Graphite Electrode
Specification
Specific Resistance (μΩ.m)
Young'sModulus (Gpa)
Flexural Strength (Mpa)
Bulk Density(g/cm3)
Ash Content(%)
Coefficient of thermal expansion ( 100-600 ℃)10-61/℃
Max
Equal to
Equal to
Electrode
Nipple
lectrode
NippleE
Electrode
Nipple
Electrode
Nipple
Electrode
Nipple
UHP Electrode
200-350
6.2
6.3
14
20
10.5
20
1.66
1.74
0.5
1.5
1.4
400700
5.3
5.3
14
20
10.5
20
1.67
1.75
1.5
1.3
Specifications & Allowance Of Graphite Electrodes
|
Diameter |
Length |
||||
|
Diameter |
Actual diameter |
Nominal length |
Allowable deviation |
||
|
inch |
mm |
Max |
Min |
Length mm |
Allowance mm |
|
8 |
200 |
205 |
200 |
1800 |
±100 |
|
9 |
225 |
230 |
225 |
1800 |
|
|
10 |
250 |
256 |
251 |
1800 |
|
|
12 |
300 |
307 |
302 |
1800 |
|
|
14 |
350 |
357 |
352 |
1800/2100 |
|
|
16 |
400 |
409 |
403 |
1800/2000/2200/2400 |
|
|
18 |
450 |
460 |
454 |
1800/2000/2200/2400 |
|
|
20 |
500 |
511 |
505 |
1800/2100/2400 |
|
|
22 |
550 |
562 |
556 |
2100/2400 |
|
|
24 |
600 |
613 |
607 |
2400/2700 |
|
|
26 |
650 |
663 |
657 |
2400/2700 |
|
|
28 |
700 |
714 |
708 |
2400/2700 |
|
Current Carrying Capacity And Current Density
|
Nominal diameter |
UHP electrode |
|
|
mm |
||
|
Current load A |
Current density A/cm2 |
|
|
200 |
|
|
|
225 |
|
|
|
250 |
9200-15100 |
21-30 |
|
300 |
15000-22000 |
20-30 |
|
350 |
20000-30000 |
20-30 |
|
400 |
25000-40000 |
19-30 |
|
450 |
32000-45000 |
19-27 |
|
500 |
38000-55000 |
18-27 |
|
550 |
45000-65000 |
18-27 |
|
600 |
52000-75000 |
18-26 |
|
650 |
60000-85000 |
18-25 |
|
700 |
68000-95000 |
17-24 |
Dimensions Of Tapered Nipples
|
3TPI |
Diameter |
Nipple mm |
Socket mm |
Pitch mm |
||||||||||
|
inch |
mm |
D |
L |
d2 |
1 |
d1 |
H |
|||||||
|
9 |
225 |
139.7 |
0-0.50 |
203.2 |
0-1 |
90.73 |
0-5 |
<10 |
131.27 |
+0.50 |
107.6 |
+7 |
8.47 |
|
|
10 |
250 |
155.57 |
220 |
103.8 |
147.14 |
116 |
||||||||
|
12 |
300 |
177.16 |
270.9 |
116.9 |
168.73 |
141.5 |
||||||||
|
14 |
350 |
215.9 |
304.8 |
150 |
207.47 |
158.4 |
||||||||
|
16 |
400 |
215.9 |
304.8 |
150 |
207.47 |
158.4 |
||||||||
|
16 |
400 |
241.3 |
338.7 |
169.8 |
232.87 |
175.3 |
||||||||
|
18 |
450 |
241.3 |
338.7 |
169.8 |
232.87 |
175.3 |
||||||||
|
18 |
450 |
273.05 |
355.6 |
198.7 |
264.62 |
183.8 |
||||||||
|
20 |
500 |
273.05 |
355.6 |
198.7 |
264.62 |
183.8 |
||||||||
|
20 |
500 |
298.45 |
372.6 |
221.3 |
290.02 |
192.2 |
||||||||
|
22 |
550 |
298.45 |
372.6 |
221.3 |
290.02 |
192.2 |
||||||||
Dimensions Of Tapered Nipples
|
4TPI |
Diameter |
Nipple mm |
Socket mm |
Pitch mm |
||||||||||
|
inch |
mm |
D |
L |
d2 |
1 |
d1 |
H |
|||||||
|
8 |
200 |
122.24 |
0-0.5 |
177.8 |
0-1 |
80 |
0-5 |
<7 |
115.92 |
+0.50 |
94.9 |
+7 |
6.35 |
|
|
9 |
225 |
139.7 |
177.8 |
97.46 |
133.38 |
94.9 |
||||||||
|
10 |
250 |
152.4 |
190.5 |
108 |
146.08 |
101.3 |
||||||||
|
12 |
300 |
177.8 |
215.9 |
129.2 |
171.48 |
114 |
||||||||
|
14 |
350 |
203.2 |
254 |
148.2 |
196.88 |
133 |
||||||||
|
16 |
400 |
222.25 |
304.8 |
158.8 |
215.93 |
158.4 |
||||||||
|
16 |
400 |
222.25 |
355.6 |
150 |
215.93 |
183.8 |
||||||||
|
18 |
450 |
241.3 |
304.8 |
177.9 |
234.98 |
158.4 |
||||||||
|
18 |
450 |
241.3 |
355.6 |
169.42 |
234.98 |
183.8 |
||||||||
|
20 |
500 |
269.88 |
355.6 |
198 |
263.56 |
183.8 |
||||||||
|
20 |
500 |
269.88 |
457.2 |
181.08 |
263.56 |
234.6 |
||||||||
|
22 |
550 |
298.45 |
355.6 |
226.58 |
292.13 |
183.8 |
||||||||
|
22 |
550 |
298.45 |
457.2 |
209.65 |
292.13 |
234.6 |
||||||||
|
24 |
600 |
317.5 |
355.6 |
245.63 |
311.18 |
183.8 |
||||||||
|
24 |
600 |
317.5 |
457.2 |
228.7 |
311.18 |
234.6 |
||||||||
|
26 |
650 |
355.6 |
457.2 |
266.79 |
349.28 |
234.6 |
||||||||
|
26 |
650 |
355.6 |
558.8 |
249.86 |
349.28 |
285.4 |
||||||||
|
28 |
700 |
374.65 |
457.2 |
285.84 |
368.33 |
234.6 |
||||||||
|
28 |
700 |
374.65 |
558.8 |
268.91 |
368.33 |
285.4 |
||||||||
Moment For Reference For Connecting Nipples And Electrodes
|
Diameter of Electrode |
Moment |
Diameter of Electrode |
Moment |
||
|
inch |
mm |
N.m |
inch |
mm |
N.m |
|
8 |
200 |
260 |
18 |
450 |
1600 |
|
9 |
225 |
340 |
20 |
500 |
2600 |
|
10 |
250 |
450 |
22 |
550 |
3600 |
|
12 |
300 |
650 |
24 |
600 |
4200 |
|
14 |
350 |
820 |
26 |
650 |
5000 |
|
26 |
400 |
1000 |
28 |
700 |
6000 |
Graphite Electrode Process Flow Diagram
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