+086-15169353969
info@ozgraphite.com
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+086-15169353969
info@ozgraphite.com
English
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HP Graphite electrode
Graphite electrode is made from domestic petroleum coke and high quality imported needle coke.
It is divided into regular power, high power, super high power, ultra high power .
It is diameter ranges from 200 mm to 600mm.The height is between 1800 and 2400mm.
It has a round shape and a square shape.
The regular power graphite electrode is made from petroleum coke with a little pitch.
The high power graphite electrode is made from 70% petroleum coke and 30% imported needle coke.
The ultra high power graphite electrode is made from 100% imported needle coke.
Characteristics of graphite electrode:
low electric resistance
good electric and thermal conductivity
high oxidation resistance
greater resistance to thermal and mechanical shock
high mechanical strength
high machining accuracy
Application
It is widely used in arc furnace steelmaking.
It is used in the mine thermoelectric furnace for the production of ferroalloy, pure silicon, yellow phosphorus, copper ice, calcium carbide, etc.
It is used in resistance furnace.Graphite furnace, melting glass furnace and electric furnace for producing silicon carbide.
Producing process:
Rawmaterial-Crushing-Calcining-Milling/mediumcrushing-Screening-Dosing-Kneading-Forming-Baking-Graphitization-Machining-Inspection-Products
Ph Physical and chemical index :
Item
Unit
HP
UHP
300-500mm
550-700mm
300-500mm
550-600mm
700-800mm
Electric
Resistance
Electrode
µΩm
5.5-6.8
5.5-7.0
4.5-6.1
4.4-6.0
4.5-5.7
Nipple
4.0-5.5
3.5-5.0
3.3-4.4
3.3-4.3
Bending Strength
Electrode
Mpa
≥10.0
≥8.5
≥10.5
≥10.0
≥10.0
Nipple
≥18.0
≥20.0
≥22.0
≥23.0
Young's Modulus
Electrode
Gpa
≤13.0
≤14.0
≤14.0
≤14.0
Nipple
≤15.0
≤20.0
≤22.0
≤22.0
Apparent Density
Electrode
g/cm3
1.62-1.70
1.66-1.73
1.68-1.74
Nipple
1.72-1.80
1.75-1.82
1.78-1.85
Thermal
Expansivity
Electrode
10-6/℃
1.80-2.20
1.20-1.50
1.10-1.50
Nipple
1.50-1.80
1.10-1.40
1.00-1.30
How to choose:
|
Capacity of Furnace |
EAF |
LF |
|
5 tons |
250mm RP |
|
|
10 tons |
350mm HP |
250mm RP |
|
20 tons |
400mm HP |
300mm HP |
|
30 tons |
450mm HP |
350mm HP |
|
50 tons |
500mm UHP |
350mm HP |
|
75 tons |
550mm UHP |
350mm UHP |
|
100 tons |
600mm UHP |
450mm UHP |
|
150 tons |
700mm UHP |
450mm UHP |
A wide range of graphite electrode dimensions and grades can be supplied to improve your furnace performance and reduce the steel melting costs from our factory.
The above collocated furnace type could be changed based on many factors, such as the current volume, transformer power, ect. If you have any demands, please feel free to contact me. Our engineers will assist you and provide relevant advice.
Our suggestions before connect the electrode:
A. Please check the inner thread of the electrode first. If the thread is not intact, please contact the sales staff to confirm whether the electrode could work properly.
B. Please clean the electrodes by compressed air first before connecting.
C. When the electrode is being wrung into the electrode hole on one end, the cushion could be prepared on the other end to avoid the nipple breakage.
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