Graphite Electrode/High Purity CNBM Graphite

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Tianjin
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0 m.t.
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100000 m.t./month

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Packaging & Delivery

Packaging Details:standard export wooden backage
Delivery Detail:15-30 days after confirming the contract

 

Product Description

Graphite electrode is made from the domestic first petroleum coke and high quality needle coke 

and widely used in the electric arc furnaces for production of alloy steels, metal and other 

nonmetallic materials, etc. The graphite electrodes include regular power, high power, super high power, ultra high power and square electrode. The range of diameters covers from 200mm to 

700mm. Our products own the following characteristics: low electric resistance, good electric and 

thermal conductivity, high oxidation resistance, greater resistance to thermal and mechanical shock, high mechanical strength, high machining accuracy.

Physical and chemical index

Item

Unit

Nominal Diameter(mm)

YB/T4088-2000

Industry Standard

Typical Values

300-400

450-550

350-550

Resistance

Electrode

ohm

6.2

6.5

4.6-6.2

Nipple

5.5

5.5

3.5-4.5

Bending Strength

Electrode

Mpa

10.5

10.0

11.0

Nipple

16.0

16.0

18.0

Elastic Modulus

Electrode

Gpa

14.0

14.0

13.0

Nipple

18.0

18.0

17.0

Density

Electrode

g/cm3

1.65

1.64

1.65-1.72

Nipple

1.72

1.70

1.75-1.82

Ash content

Electrode

%

0.3

0.3

0.3

Nipple

CTE(100-600)

Electrode

10-6/C

1.5

1.5

1.20-1.40

Nipple

1.4

1.4

1.10-1.30

 

Recommended current carrying capacity


Nominal Diameter

YB/T4088-2000

Industry Standard

Typical Values

Current Carrying

Capacity

Currant Density

Electrical Arc Furnace

Current Carrying

Current Density

in

mm

A

A/cm2

A

A/cm2

14

350

20000-30000

20-30

24000-33000

25-34

16

400

25000-40000

19-30

31000-44000

24-34

18

450

32000-45000

19-27

36000-49000

22-30

20

500

38000-55000

18-27

42000-60000

21-30

22

550

42000-62000

17-25

50000-70000

20-28

Do you know our material of the graphite electrode? 

 

The regular power graphite electrode is made from petroleum coke with a little pitch, which meets

 the state standards YB/T4088-2000

 

The high power graphite electrode is made form 70% petroleum coke and 30% imported needle 

coke, which meets the state standards YB/T4089-2000

 

The ultra high power graphite electrode is made form 100% imported needle coke, which meets 

the state standards YB/T 4090-200

 

Note: Needle coke is one kinds of very important material to produce the high grade graphite 

electrode,which is rapid development in carbon graphite industry. The needle coke own the 

following characteristics: low electric resistance, low dilatation coefficient, good electric and 

thermal conductivity,high oxidation resistance, greater resistance to thermal and mechanical 

shock, high mechanical strength, high machining accuracy, low consume.

Picture


Graphite Electrode/High Purity CNBM Graphite



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Q:What are the factors that affect the electrode wear rate of machine tools?
In the pulse peak voltage, current and pulse width decreased, the electrode loss increase, and the heat produced from the processing of large pulse width, is conducive to the adsorption of copper electrode graphitization induced by carbon, which is commonly referred to as the covering effect".
Q:I used 12V direct current, graphite electrode electrolysis sodium sulfide solution, the anode produced a large number of black material, this is why ah?
The actual electrolysis of hydrogen sulfide, which produces no black, or impurities that are absorbed by the anode, is graphite, because the dots explain the loose particles that are absorbed on the surface
Q:Graphitized coke, graphite, broken, mixed up, how to export?
Graphite electrode pieces in different data definition of graphite scrap is different, some data and literature of the graphite particles are called not great pieces of graphite (such as graphite) and some say that graphite products have a certain size, into a block of graphite broken, we are here to say Shi Mosui is second, often called as the graphite block. The production of graphite from graphite products, graphitization and machining process. Graphite waste used as an additive and as a conductive material in the steelmaking and casting industries.
Q:Excuse me, why does the graphite electrode flake when electrolyzed salt water is used?
The structure of the electrolytic cell is different when the electrolytic cell is constructed with different electrolytes
Q:What do carbon products include?
Carbon and graphite materials are mainly carbon based non-metallic solid materials, in which carbon material is basically composed of non graphitic carbon material, and graphite material is basically composed of graphite carbon material. For the sake of simplicity, carbon and graphite materials are sometimes referred to as carbon materials (or carbon materials).
Q:Iron and graphite as electrodes and Nacl as electrolyte solutions. Why do they produce electric current? Graphite and iron react not with solution, can they be connected by wires?
Because the metal activity order form sodium potassium calcium magnesium aluminum, zinc and tin lead (hydrogen), mercury copper silver platinum, iron in the front row because of water water hydrogen, ionized hydrogen ions by iron replacement
Q:I remember the more lively metal, the electron?
Metal ion is more inert electron, graphite electrode for electrolytic salt solution containing the same amount of substance A and C two metals, C first precipitated, so C is copper. In a dilute sulfuric acid with H2 precipitation, certainly not a copper. The more active metal betatopic ability is strong, have the corresponding ion electronic ability weaker. First metal ions corresponding to metal electrons are not active.
Q:Will the brush grease not short-circuit the commutator?
Graphite, on the other hand, has good lubrication. The graphite base electrode will form a layer of carbon film when it rotates on the surface of the motor commutator. It can reduce the friction coefficient between the brush and the commutator and reduce the wear of the commutator effectively.
Q:Can high-purity graphite be used as an electrode?
The thin and deep bone electrode can not be deformed, and the pure graphite electrode is brittle. It is better to break or deform, and can bear high temperature without deformation.
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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