86-532-88732781

CN
Products

Graphite Electrode

  • Products
    Detail

  • Physical And
    Chemical Index

  • Packing

  • Related
    roducts

  • Inquiry
    Now

Artificial graphite electrode is made of high-quality low ash materials, such as petroleum coke, needle coke and coal pitch.after calcining,burdening,kneading,forming,baking and pressure impregnation, graphitization and then precision machined with professional CNC machining.such of the products own characteristics with low resistivity, good electrical conductivity ,low ash, compact structure,good anti oxidation and high mechanical strength, so it is the best conductive material for electric arc furnace and smelting furnace. 


Notes of the use of graphite electrode 

1.The electrode holder should be held in the place beyond the security line of the top electrode;otherwise, the electrode would be easily broken.the contact surface between the holder and the electrode should be cleaned up regularly to maintain a good contacting,the cooling jacket of the holder shall be avoided from water leakage. 

2.Identify the reasons it there is gap in the electrode junction,do not use them until the gap is eliminated. 

3.If there is falling off of nipple bolt when connecting electrodes,it is necessary to complete the nipple bolt. 

4.The application of electrode should avoid of tilting operation, particularly , the group of connected electrodes should not be put horizontally so as to prevent from breaking. 

5.When charging materials to the furnace,the bulk materials should be charged to the place of the furnace bottom,so as to minimize the impact of the large furnace materials on the electrodes. 

6.The large pieces of insulation materials should be avoided of stacking on the bottom of the electrodes when smelting so as to prevent from affecting the electrode use or even broken. 

7.Avoid of collapsing the furnace lid when rising or dropping the electrodes,which may result in electrode damage. 

8.It is necessary to prevent the steel slag from splashing to the threads of the electrodes or nipple stored in the smelting site,which may damage the precision of the threads. 

 

Properties

 

Unit

Nominal Diameter Of Electrode

UHP

HP

RP

300-600 mm

650-800mm

300-800mm

300-800mm

Electric resistivity

Electrode

μΩ.m

4.8-5.8

4.6-5.8

5.8-6.6

7.8-8.8

Nipple

3.8-4.5

3.8-4.5

4.2-5.0

5.0-6.5

Flexural strength

Electrode

Mpa

10.0-14.0

10.0-14.0

10.0-13.0

7.0-12.0

Nipple

20.0-26.0

22.0-26.0

18.0-22.0

15.0-20.0

Young’s modulus

Electrode

Gpa

9.0-13.0

10.0-14.0

8.0-12.0

7.0-9.3

Nipple

15.0-18.0

15.0-18.0

14.0-16.0

12.0-14.0

Bulk density

Electrode

g/cm3

1.68-1.74

1.70-1.74

1.62-1.66

1.53-1.56

Nipple

1.77-1.82

1.78-1.84

1.74-1.80

1.70-1.74

CTE(100-600℃)

Electrode

×10-6/℃

1.1-1.4

1.1-1.4

1.6-1.9

2.2-2.6

Nipple

0.9-1.2

0.9-1.2

1.1-1.4

2.0-2.5

Ash


0.3

0.3

0.3

0.5

Sizes and permissible variation of graphite electrode

Nominal Diameter

Actual Diameter(mm)

Actual Length(mm)

mm

in

Max

Min

Black cover part

Length

Tolerance

Short ruler sizes

200

8

205

200

197

1600 1800

±100

-275

250

10

256

251

248

300

12

307

302

299

350

14

357

352

349

400

16

409

403

400

1600 1800 2000 2200

450

18

460

454

451

500

20

511

505

502

550

22

562

556

553

600

24

613

607

604



Storage of graphite electrodes

1.The electrodes should be put in a clean and dry place;do not remove the packaging before use so as to prevent the dusts and debris from dropping onto the threads or into the electrode socked and thus affect the precision of the electrode connection.

2.The electrodes stored in the open area must be covered with a rain-proof tarpaulin.

3.The electrodes should be stored in the storehouse neatly.the both sides of the electrodes should be well stacked to prevent from stack sliding.

4.The stacking height of the scattered electrodes should not exceed 2.8 meters,while the electrodes packed in the boxed should not exceed 4 layers.

5.The temperature of the storage places of nipple should not be too high so as to prevent melting of the asphalt nipple bolt.


Packing 

Graphite electrode is packaged by wooden cages and nipple is packaged by wooden boxes.graphite electrode and nipple can be packaged together according to the requirements of the customers.the products are protected by waterproof and dustproof plastic inside and fixed by steel bands,fit for road and sea transportation.


 


Inquiry Now

If you have any questions, feedback or comments, please fill out the form below and we will reply you back as soon as possible.