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  Graphite
  Graphite Products
  Specialty Graphite
Company I 18774117777
Online:   
 
商品名称:Graphite Electrodes
 
Graphite Electrodes  Description: Click:620

Card of the TM graphite electrodes, the indicators in strict accordance with "The People’s Republic of China ferrous metals industry standard" production and processing.  

 Raw materials and process

     We produce high-quality graphite electrodes use petroleum coke, needle coke, coal with low ash raw materials such as asphalt, after calcination, ingredients, kneading, molding, baking and pressure impregnation after a high temperature above 3000 ℃ under the graphitization, and then by mechanical processed. The product has a low resistivity, conductivity performance, low ash, dense structure, uniform, good oxidation resistance and high mechanical strength.  

 Products

 Graphite electrode according to the level of quality indicators can be divided into ordinary power, high-power and ultra-high power.

 1. Ordinary power graphite electrode

 Allows the use of current density lower than 17A/cm2 graphite electrodes used in steel making, refining silicon, phosphorus and other common refining electric power.

 2. Anti-oxidation coating graphite electrode

 The surface coating layer of anti-oxidant protective layer of graphite electrodes, the formation of another high-temperature oxidation of both conductive protective layer to reduce consumption of steel when the electrode.

 3. High power graphite electrode

 Allows the use of current density of 18 ~ 25 A/cm2 graphite electrodes, mainly for high-power electric arc furnace steelmaking.

 4. Ultra-high power graphite electrode

 Allows the use of greater than 25 A/cm2 current density of the graphite electrode. Mainly used in ultra-high-power electric arc furnace steelmaking.

 Normal power graphite electrode

Carbon carbon to high-quality petroleum coke, petroleum coke as the main raw material, shaping, baking, graphitization and mechanical processing is made for the electric arc furnace to make conductive material such as ordinary power graphite electrode, production standards entirely in accordance with YB / T 4088 -- 2000.

 Electrode Size (mm)

Nominal Diameter
The actual diameter
Length
Maximum
Minimum
Black part of the minimum
75
78
73
72
1000
100
103
98
97
1200
130
132
127
126
1200
150
154
149
146
1600
200
205
200
197
1600
225
230
225
222
1600
250
256
251
248
1600/1800
300
307
302
299
1600/1800
350
357
352
349
1600/1800
400
409
403
400
1600/1800/2000/2200
450
460
454
451
1600/1800/2000/2200
500
511
505
502
1800/2000/2200/2400

Specifications

Item
Units
Nominal Diameter,mm
75-130
150-225
250-300
350-500
Priority Level
Priority Level
Priority Level
Priority Level
Resistivity of not more than
Electrode
μΩm
8.5
9.0
9.0
9.0
Connector
8.5
8.5
8.5
8.5
Flexural strength of not less than
Electrode
Mpa
9.8
9.8
7.8
6.4
Connector
13.0
13.0
13.0
13.0
Elastic modulus is not greater than
Electrode
GPa
9.3
9.3
9.3
9.3
Connector
14.0
14.0
14.0
14.0
Bulk density of not less than
Electrode
g/cm3
1.58
1.52
1.52
1.52
Connector
1.63
1.63
1.68
1.68
Thermal expansion coefficient of not more than
(100-500℃)
Electrode
10-6/℃
2.9
2.9
2.9
2.9
Connector
2.7
2.7
2.8
2.8
Ash not more than
%
0.5
0.5
0.5
0.5
Note: The ash and thermal expansion of the system as a reference indicator

Current Load

Nominal Diameter,mm
Allow current load,A
Current density,A/cm2
75
1000-1400
22-31
100
1500-2400
19-30
130
2200-3400
17-26
150
3000-4500
16-25
200
5000-6900
15-21
250
7000-10000
14-20
300
10000-13000
14-18
350
13500-18000
14-18
400
18000-23500
14-18
450
22000-27000
13-17
500
25000-32000
13-16

Main use

 Electric arc furnace steelmaking, industrial silicon furnace, phosphorus furnace, corundum furnace

 My nearly 30% of graphite electrodes for export, domestic demand was mainly concentrated in the electric arc furnace steel (35%), submerged arc furnace smelting yellow phosphorus (9%), abrasive (8%) and silicon (5%) 4 industry, other industries minimal requirements.

 Allows the use of current density lower than 17A/cm2 graphite electrodes used in steel making, refining silicon, phosphorus and other common refining electric power.

 Product testing

 Electrode quality inspection carried out by the Carbon carbon QC, customers in accordance with the provisions of the standard acceptance.

 Packaging

 Graphite electrode with wooden boxes, wooden frame at the end of care packages, and difficulties with the packing strip bar.

 Logo

 Finished electrode in the connector hole at the end of the corresponding safety line marked on the electrode surface.

 
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