Graphite Electrode with Technical Properties from CNBM

Ref Price:
$10.00 - 100.00 / m.t.
Loading Port:
Shanghai
Payment Terms:
TT or LC
Min Order Qty:
10 m.t.
Supply Capability:
100000 m.t./month

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Product Description:

TECHNICAL PROPERTIES OF GRAPHITE ELECTRODE

1.Physical and chemical index

Item

Unit

RP

HP

UHP

250-400

450-800

300-400

450-700

300-400

450-700

Electric

Resistivity

Electrode

μΩ.m

7.5-8.6

7.5-8.8

5.5-6.8

5.5-7.0

4.6-6.0

4.8-6.2

Nipple

4.5-5.5

4.0-5.0

3.5-4.5

Bending

Strength

Electrode

MPa

≥8.0

≥11.0

≥11.0

Nipple

≥15.0

≥16.0

≥18.0

Elastic

Modulus

Electrode

GPa

≤9.0

≤11.0

≤13.0

Nipple

≤13.0

≤14.0

≤15.0

Bulk

Density

Electrode

g/cm3

1.55-1.65

1.63-1.73

1.65-1.75

Nipple

1.70-1.75

1.73-1.80

1.75-1.82

Ash

Electrode

%

≤0.3

Nipple

CTE

(100-600)℃

Electrode

10-6/℃

2.00-2.50

1.80-2.00

1.30-1.50

Nipple

1.50-1.80

1.50-1.80

1.20-1.40

 

2.Recommended current carrying capacity

Nominal Diameter

(mm)

RP

HP

UHP

Current

Carrying

Capacity

Current

Density

Current

Carrying

Capacity

Current

Density

Current

Carrying

Capacity

Current

Density

in

mm

A

A/cm2

A

A/cm2

A

A/cm2

12

300

1000-13000

14-18

13000-174000

17-24

15000-22000

20-30

14

350

13500-18000

14-18

17400-24000

17-24

20000-30000

20-30

16

400

18000-23500

14-18

21000-31000

16-24

25000-40000

19-30

18

450

22000-27000

13-17

25000-40000

15-24

32000-45000

19-27

20

500

25000-32000

13-16

30000-48000

15-24

38000-55000

18-27

22

550

32000-40000

13-16

35000-55000

14-22

42000-64000

17-26

24

600

35000-41000

13-15

41000-61000

14-21

50000-73000

17-25

28

700

39000-48000

10-12

55000-82000

14-21

67000-99000

17-25

32

800

43000-54000

8-10

/

/

/

/

 

       TOLERANCCES OF ELECTRODE DIAMETERS AND LENG THES (MM)

Nominal Diameter

Actual Diameter

Length

in

mm

max

min

Black surface min

12

300

307

302

299

1800/2000

14

350

357

352

349

1800/2000/2200

16

400

409

403

400

1800/2000/2200

18

450

460

454

451

1800/2000/2200

20

500

511

505

502

2000/2200/2400

22

550

562

556

553

2000/2200/2400

24

600

613

607

604

2200/2400/2700

28

700

714

708

705

2400/2700

29

800

815

809

806

2700/3000

 

 

SIZE OF TAPER-THREAD NIPPLES AND SOCKETS(MM)

Nominal Length

Standard Deviation

Deviation of the short scale length

1800

+100

-100

-100

-275

2000

+100

-100

-100

-275

2200

+100

-100

-100

-275

2400

+100

-100

-100

-275

2700

+150

-150

-150

-300

3000

+150

-150

-150

-300

 

           FINE-GRAIN SPECIALTY GRAPHITE FXG-1

Physical and chemical index

Item

Unit

Guarantee Value

Typical Value

Max Grante Size

mm

0.8

0.8

Bulk Density

g/cm3

≥1.70

1.73

Specific Resistance

μΩ.m

≤8.5

7.5

Bending Strength

MPa

≥10.0

11.0

Compressive Strength

MPa

≥24.0

27.0

Thermal Conductivity

W/(m.k)

≥120

150

CTE (100-600)℃

10-6/℃

≤2.5

2.2

Ash Content

%

≤0.3

0.09

 

 

FINE-GRAIN SPECIALTY GRAPHITE FXG-2

Physical and chemical index

Item

Unit

Guarantee Value

Typical Value

Max Grante Size

mm

0.8

0.8

Bulk Density

g/cm3

≥1.73

1.76

Specific Resistance

μΩ.m

≤8.0

7.0

Bending Strength

MPa

≥12.0

12.5

Compressive Strength

MPa

≥31.0

34.0

Thermal Conductivity

W/(m.k)

≥130

160

CTE (100-600)℃

10-6/℃

≤2.5

2.1

Ash Content

%

≤0.3

0.09

 

               MEDIUM-GRAIN SPECIALTY GRAPHITE FCP

Physical and chemical index

Item

Unit

Guarantee Value

Typical Value

Guarantee Value

Typical Value

Guarantee Value

Typical Value

Max Grante Size

mm

2

2

4

4

8

8

Bulk Density

g/cm3

≥1.58

1.60

≥1.57

1.58

≥1.56

1.58

Specific Resistance

μΩ.m

≤11.5

10.5

≤11.5

10.5

≤12.5

11.5

Bending Strength

MPa

≥6.0

6.5

≥6.5

7.0

≥7.0

7.5

Compressive Strength

MPa

≥18.0

18.5

≥17.5

18.0

≥16.0

17.0

Modulus of Elasticity

GPa

≤9.3

7.5

≤9.3

7.5

≤9.3

7.0

CTE (100-600)℃

10-6/℃

≤2.5

2.4

≤2.5

2.4

≤2.5

2.4

Ash Content

%

≤0.3

0.09

≤0.3

0.09

≤0.3

0.09

 

MEDIUM-GRAIN SPECIALTY GRAPHITE FCG-1

Physical and chemical index

Item

Unit

Guarantee Value

Typical Value

Guarantee Value

Typical Value

Guarantee Value

Typical Value

Max Grante Size

mm

2

2

4

4

8

8

Bulk Density

g/cm3

≥1.70

1.75

≥1.69

1.73

≥1.68

1.72

Specific Resistance

μΩ.m

≤8.5

7.5

≤8.5

7.5

≤9.5

8.5

Bending Strength

MPa

≥9.0

9.5

≥9.5

10.0

≥10.0

12.5

Compressive Strength

MPa

≥30.0

31.0

≥29.0

30.0

≥30.0

31.0

Modulus of Elasticity

GPa

≤12.0

9.5

≤12.0

9.5

≤12.0

9.0

CTE (100-600)℃

10-6/℃

≤2.5

2.3

≤2.5

2.3

≤2.5

2.3

Ash Content

%

≤0.3

0.09

≤0.3

0.09

≤0.3

0.09

 

 1

FAQ

  1. What is the consumption of your Electrode?

    The comsumption of Our Electrode can be below 1.0kg/mt, and the everage is 0.5kg/mt.

  2. What is the reason of the problem of broken?

    There are several reasons, such as: Amperage is too high, the connection is not good, etc.

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Q:What are the factors that affect the electrode wear rate of machine tools?
Effect of processing voltage on electrode wear. The processing voltage is the average voltage between the discharge time and the gap. When the voltage is lower than the power supply voltage (voltage) 25%, electrode loss will increase, which is due to the electrode and the workpiece is too close, the discharge column energy is too large, the electrodes generate heat radiation is too strong, at the same time, there are a large number of continuous arc discharge. But the working voltage is too high (partial load processing), bad conditions of thermal effect in the gap, is not conducive to the adsorption of copper electrode of carbon graphite, destroy the covering effect. Similarly, the electrode loss increase, therefore, corresponding to different processing standards should be selected to adjust the discharging gap voltage.
Q:What is the reason that the current cannot be increased when the graphite electrode is used for anode electrolysis?Add calcium chloride and sodium bicarbonate into electrolytic water
Because in the process of electrolysis of water in cathode electron generated hydroxyl, the alkaline solution increased. But with the hydroxyl reaction of sodium carbonate and sodium bicarbonate, carbonate and calcium ions exist at the same time, must produce the precipitation of calcium carbonate, the ion in the solution is reduced, thereby conductive resistance increases. Thus weakened over time current cannot be raised
Q:How to improve the efficiency of graphite electrode milling, please tell me
The technical development of the high-speed machining center lays the foundation for improving the milling efficiency and quality of the graphite electrode, especially for the milling of the small electrode with complicated shape and thin wall. In the EDM mold processing, the graphite electrode needs to be processed by the high-speed machining center (HSM), so the demand for HSM machine tools is also increasing. But for some time, because of the technological developments in hard steel processing, it seems possible to make graphite electrodes an obsolete technology.
Q:The production of one ton of steel required graphite electrode
Not sure, look at your such as what is charge, and your smelting level.If the proportion of molten iron to the furnace is high, then the electrode consumption is low, 0.7kg/t, or lower. If it's cold, 1-2kg/t.
Q:Please senior doubts. The graphite electrode is used in the mold cavity In what case is graphite processing taken?
Graphite electrode has better machining stability and high production efficiency. It is easy to be used as EDM electrode material in EDM when it is processed with long pulse width and high current.
Q:Synthesis techniques of carbon nanotubes
Catalytic pyrolysis is one of the widely used methods for preparing carbon nanotubes. The method mainly uses transition metal as catalyst, and is suitable for large-scale preparation of carbon nanotubes. The content of carbon nanotubes in the products is higher, but the defects of carbon nanotubes are more.
Q:Do electroplating experiments, graphite as an electrode, graphite how to pre process to ensure that the coating will not fall, resulting in increased color of the solution
Both of these will be a little bit absorbed, when plating, the anode and anode inside the syrup will run on the negative pole,
Q:Can high-purity graphite be used as an electrode?
The utility model has the advantages of small density and suitable tool electrodes for processing large parts or moulds, and the whole quality is small.
Q:Where is the graphite electrode scrap?
Atoms, ions, and electrons collide with each other in strong oscillatory motion to produce more electrons and ions.
Q:Are graphite and carbon electrodes the same? What kinds of ore furnaces are used?
Graphite electrode should be relatively pure, composed of graphite.

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