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Graphite Electrode

  • Graphite Electrode

1.Good electrical conductivity.

2.Good thermal conductivity.

3.High resistance to oxidation.

4.Good stable thermal shock.
Description of Graphite Electrode
 
The graphite electrode will be a high-temperature graphite conductive material, the core of which consists of petroleum coke, tar coke as a filler, coal tar as a binder. We produce graphite electrodes and nipples to them. Graphite electrodes are characterized by low resistance, good electrical conductivity and thermal conductivity, high resistance to oxidation and thermal shock, high mechanical strength, etc.
 
Catalogue 
Graphite Electrode Application
Classification of Graphite Electrodes
Graphite Electrodes Product Photos
The Length & Diameter & Permissible Deviation of Graphite Electrode
Technical Characteristics of Graphite Electrode RP, HP, UHP
Technical Characteristics of High Density Graphite Electrode (HD)
Technical Characteristics of a Quasi-Superhigh-Gauge Graphite Electrode (EGPK-SHP)
Advantages of Graphite Electrode
Use of Graphite Electrode
Our Suggestions before Connecting the Electrode
★ When Connecting the Electrodes, Please Note
★ Graphite Electrode Application


★  Graphite Electrode Application

1 for EAF arc furnace;
2 for ore-thermal furnace; for the resistance furnace;
3 for the production of profiled graphite products;
4 for the production of shaped graphite products.

Diameter of electrodes:  from 75 to 800mm. We can produce various specifications in accordance with customer requirements.
 
Our advantages: Manufacturer from China; Buy directly from the factory; High-quality products; Profitable price.
 
★ Classification of Graphite Electrodes
 
Graphite Electrode   Graphite Electrode    Graphite Electrode
     Graphite Electrode RP              Graphite Electrode HP             Graphite Electrode UHP
 
★ Graphite Electrodes Product Photos
 
Graphite Electrode
 
★ The Length & Diameter & Permissible Deviation of Graphite Electrode
 
Nominal Diameter Actual Diameter Length (mm) Tolerance
MM Inch Poppy Mines The Minimum Size Of The Black Part Length Short Length
75 3 78 73 72 1400/1600 ± 100 -275
100 4 103 98 97 1400/1600
130 5 132 127 126 1400
150 6th 154 149 146 1400/1600/1800
175 7th 180 174 172 1400/1600
200 8 205 200 197 1600/1800
225 9 230 225 222 1600/1800
250 10 255 251 248 1600/1800
300 12 307 302 299 1600/1800/2000
350 14 357 352 349 1600/1800/2000
400 16 409 403 400 1600/1800/2000/22000
450 18 460 454 451 1600/1800/2000/22000
500 20 511 505 502 1600/1800/2000/22000
550 22 562 556 553 1800/2000/2200/2400
600 24 613 607 604 2000/2200/2400/2700
650 26th 663 659 656 2000/2200/2400/2700
700 28 714 710 707 2000/2200/2400/2700

★ Technical Characteristics of Graphite Electrode RP, HP, UHP
 
Name Unit Nominal Diameter
UHP Ultra-High-Power HP Superstrong RP Conventional Power
≤Φ400 ≥Φ450 ≤Φ400 ≥Φ450 ≤Φ300 ≥Φ350
Resistivity Electrode ΜΩ · m ≤5.5 ≤6.5 ≤8.5
Nipple ≤4.5 ≤5.5 ≤6.5
Flexural Strength Electrode MPa ≥11.0 ≥10.5 ≥9.8 ≥8.5 ≥7.0
Nipple ≥20.0 ≥16.0 ≥15.0
Elastic Modulus Electrode GPa ≤14.0 ≤12.0 ≤9.3
Nipple ≤18.0 ≤16.0 ≤14.0
Density Electrode g / cm3 ≥1.66 ≥1.67 ≥1.62 1.6 ≥1.53 ≥1.52
Nipple ≥1.75 ≥1.73 ≥1.69
Coefficient Of Thermal Expansion Electrode 10-6 / ℃ ≤1.5 ≤2.4 ≤2.9
Nipple ≤1.4 ≤2.2 ≤2.8
ASH % ≤0.3 ≤0.3 ≤0.5
Note: 1.Koeffitsient ash content and thermal expansion as the reference index, the coefficient of thermal expansion (100 ℃ ~ 600 ℃), Custom manufacturing.
 
★ Technical Characteristics of High Density Graphite Electrode (HD)
 
Name Unit Nominal Diameter
75-200 mm 250-300mm 400-500mm
top grade first grade top grade first grade top grade first grade
Resistivity (Not More Than) Electrode ΜΩ · m 8.0 9.0 8.0 9.0 8.0 9.0
Nipple 7.5 7.5 7.5
Flexural Strength(not less than) Electrode MPa 10 9 8
Nipple 13 13 13
Elastic Modulus(no more) Electrode GPa 12 12 12
Nipple 14 14 14
Density(not less than) Electrode g / cm3 1.58 1.58 1.58
Nipple 1.68 1.68 1.68
Coefficient Of Thermal Expansion (No More) Electrode 10-6 / ℃ 2.7. 2.7. 2.7.
Nipple 2.5 2.5 2.5
Ash Content (not more than) % 0.3 0.3 0.5
Note: 1. The coefficient of ash content and thermal expansion as a reference index.
 
★ Technical Characteristics of a Quasi-Superhigh-Gauge Graphite Electrode (EGPK-SHP)
 
Name Unit Nominal Diameter (mm)
300, 350, 400 450, 500
Resistivity (not more than) Electrode ΜΩ · m 6.2 6.5
Nipple 5.5 5.5
Flexural Strength(not less than) Electrode MPa 10.5 10
Nipple 16 16
Elastic Modulus(no more) Electrode GPa 14 14
Nipple 18 18
Density(not less than) Electrode g / cm3 1.65 1.64
Nipple 1.72 1.7
Coefficient Of Thermal Expansion (no more) Electrode 10-6 / ℃ 1.5 1.5
Nipple 1.4 1.4
Ash Content (not more than) % 0.3 0.3
Note: 1. Zonality as a reference index.

If you have any requirements, please Contact Us. Our engineers will help you and provide appropriate advice. 
 
★ Advantages of Graphite Electrode
 
1 The process of graphite electrode production is simple, high efficiency, small graphite loss
2 Fast processing speed, lower production costs
3 Different sizes available, including large diameter
4 Our graphite electrodes are very durable and have a long service life
 
★ Use of Graphite Electrode

1 For arc furnaces of electric arc furnaces. Graphite electrodes are most often used in a coal-smelting electric furnace.
2 For a closed arc
3 For a resistor furnace
4 For the production of graphite shaped products. The graphite electrode blank is also used for processing in various crucibles, shapes, boats and heating elements and other graphite products. For example, in the quartz glass industry, for each production of 1 ton of an electric melting tube, a graphite electrode 10 m is required, for each quartz brick of 1 ton it is necessary to consume 100 kg of graphite electrode.
 
★ Our Suggestions before Connecting the Electrode
 
1 Please check the internal thread of the electrode first. If the thread is not intact, please contact sales staff to confirm whether the electrode can work properly.
2 Please clean the electrodes with compressed air before connecting.
3 When the electrode is squeezed into the electrode hole at one end, the pad can be prepared at the other end to avoid nipple breakage.
 
★ When  Connecting the Electrodes, Please Note

1 drop down slowly when the new electrode is directly above the hole connected to the electrode.
2 put the insulator between the two electrodes, and the electrode drop slowly to prevent the electrode hole breakage and nipple threads.
3 Raise the new electrode slightly, and then remove the insulator, connect the two electrodes.
4 Tighten the electrodes with a proper wrench and specified torque.