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Graphite Electrode UHP For Sale
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  • Graphite Electrode UHP For Sale
  • Graphite Electrode UHP For Sale
  • Graphite Electrode UHP For Sale

Graphite Electrode UHP For Sale

♦ Good electrical conductivity
♦ Good thermal conductivity
♦ High resistance to oxidation
♦ Good stable thermal shock
♦ Precise machining accuracy
♦ High anti-oxidation capability
 
 
Definition of UHP Graphite Electrode

UHP graphite electrode refers to a kind of ultra high power graphite based electricity conduction material, which adopts petroleum coke, needle shaped coke as aggregate, coal asphalt as binder, and are processed by complex crafts such as calcining, crushing, milling, batching, mixing, forming, roasting, impregnating, graphitization and mechanical processing. UHP graphite electrode is usually used as conductor of large capacity electric arc furnace. The intense electric arc generated between UHP graphite electrode and bottom electrode can heat and melt furnace load. 

Rongsheng Kiln Refractory Company is a professional graphite electrode manufacturer in China. Our company always devoted into manufacturing high quality graphite electrodes for all customers that are demanded for their ease of use, long time service and options for wide ranging usages. Besides, our company also provide RP Graphite ElectrodesHP Graphite Electrode that you can choose from Rongsheng Group.

    
   

Application of Graphite Electrode UHP
 
Ultra-high-power graphite electrodes (EHSP-UHP) are manufactured for operation at currents with a density of more than 25A / cm2, and the graphite electrode UHP is mainly used for for ultra-high-power arc furnaces and powerful ladle furnaces.

(1) Used in Electric Arc Furnace

Electric furnace steelmaking mill is the largest user of graphite electrodes. Graphite electrodes used in steelmaking accounts for 70%-80% of the total graphite electrodes production. Graphite electrodes are used to conduct electric current into electric furnace, electric arcs generated between electrodes end and loaded materials can release large amount of heat for high temperature smelting.

(2) Used in Mine Electric Furnace

The ore electric furnace is mainly used for the production of industrial silicon and yellow phosphorus. It features in that the lower part of the conductive electrode is buried in the charge, electric arcs are generated in material layer, and the heat released in the charge is used for the smelting. Mine electric furnaces which require high electric current density need to use graphite electrodes. For example, about 100 kg of graphite electrode is consumed for every t of silicon yield, and about 40 kg of graphite electrode is consumed for each t of yellow phosphorus production.


   
 

 
Features of UHP Graphite Electrode

►Very high electricity load capacity, current intensity is usually above 25A/cm2.

►Bulk density is strictly controlled to have the best thermal shock resistance.

►Low specific resistance, excellent electrical conductivity, so the energy loss is very small and no electric arc generates at body part.

►Good high temperature mechanical strength, is not easy to rupture during working.

►No contamination to the processed steel, only CO or CO2 gas are produced during oxidization.

► Very low thermal expansion coefficient.

►Long production cycle and complex processing craft.

   


Physical & Chemical Properties of UHP Graphite Electrodes
 
  Classification Unit Nominal Diameter (mm)
250-400 450-500 550-650 700-800
Resistivity Electrode μΩm 6.2 6.3 6 5.8
Nipple 5.3 5.3 4.5 4.3
Bending Strength Electrode Mpa 10.5 10.5 10 10
Nipple 20 20 22 23
Young’s Modulus Electrode Gpa 14 14 14 14
Nipple 20 20 22 22
Bulk Density Electrode g/cm3 1.67 1.66 1.66 1.68
Nipple 1.74 1.75 1.78 1.78
CTE
(100℃-600℃)
Electrode × 10-6 / ℃ 1.5 1.5 1.5 1.5
Nipple 1.4 1.4 1.3 1.3
Ash Content Electrode % 0.5 0.5 0.5 0.5
Nipple
 
 Graphite Electrode UHP Current Capacity

Nominal diameter Current throughput (A) The current density (A / cm2)
Millimeters (mm) Inch (inch)
250 10 9200-15100 21-30
300 12 13000-22000 20-30
350 14 20000-30000 20-30
400 16 25000-40000 19-30
450 18 32000-45000 19-27
500 20 38000-55000 18-27
550   48000-60000 18-24
600 24 52000-72000 18-24
700 27th 62000-95000 18-24
 

The Length & Diameter & Permissible Deviation of the Graphite Electrode UHP

Diameter Length
Nominal diameter Actual diameter Nominal length tolerance
Millimeters (mm) Inch (inch) Max. (Max.) Min (min) mm Length the maximum  
300 12 307 302 1600
1800
± 100 -100 -275
350 14 357 352
400 16 409 403
450 18 460 454
500 20 511 505 1600/1800/2000/2200 ± 100 -100 -275
550 22 556 553
600 24 613 607
 
 

 Physical & Chemical Properties of UHP Graphite Electrodes

  Classification Unit Nominal Diameter (mm)
250-400 450-500 550-650 700-800
Resistivity Electrode μΩm 6.2 6.3 6 5.8
Nipple 5.3 5.3 4.5 4.3
Bending Strength Electrode Mpa 10.5 10.5 10 10
Nipple 20 20 22 23
Young’s Modulus Electrode Gpa 14 14 14 14
Nipple 20 20 22 22
Bulk Density Electrode g/cm3 1.67 1.66 1.66 1.68
Nipple 1.74 1.75 1.78 1.78
CTE
(100℃-600℃)
Electrode × 10-6 / ℃ 1.5 1.5 1.5 1.5
Nipple 1.4 1.4 1.3 1.3
Ash Content Electrode % 0.5 0.5 0.5 0.5
Nipple
 
 Graphite Electrode UHP Current Capacity


Nominal diameter Current throughput (A) The current density (A / cm2)
Millimeters (mm) Inch (inch)
250 10 9200-15100 21-30
300 12 13000-22000 20-30
350 14 20000-30000 20-30
400 16 25000-40000 19-30
450 18 32000-45000 19-27
500 20 38000-55000 18-27
550   48000-60000 18-24
600 24 52000-72000 18-24
700 27th 62000-95000 18-24
 

The Length & Diameter & Permissible Deviation of the Graphite Electrode UHP

Diameter Length
Nominal diameter Actual diameter Nominal length tolerance
Millimeters (mm) Inch (inch) Max. (Max.) Min (min) mm Length the maximum  
300 12 307 302 1600
1800
± 100 -100 -275
350 14 357 352
400 16 409 403
450 18 460 454
500 20 511 505 1600/1800/2000/2200 ± 100 -100 -275
550 22 556 553
600 24 613 607
 
 

Application of Graphite Electrode UHP

Ultra-high-power graphite electrodes (EHSP-UHP) are manufactured for operation at currents with a density of more than 25A / cm2, and the graphite electrode UHP is mainly used for for ultra-high-power arc furnaces and powerful ladle furnaces.

(1) Used in Electric Arc Furnace

Electric furnace steelmaking mill is the largest user of graphite electrodes. Graphite electrodes used in steelmaking accounts for 70%-80% of the total graphite electrodes production. Graphite electrodes are used to conduct electric current into electric furnace, electric arcs generated between electrodes end and loaded materials can release large amount of heat for high temperature smelting.

(2) Used in Mine Electric Furnace

The ore electric furnace is mainly used for the production of industrial silicon and yellow phosphorus. It features in that the lower part of the conductive electrode is buried in the charge, electric arcs are generated in material layer, and the heat released in the charge is used for the smelting. Mine electric furnaces which require high electric current density need to use graphite electrodes. For example, about 100 kg of graphite electrode is consumed for every t of silicon yield, and about 40 kg of graphite electrode is consumed for each t of yellow phosphorus production.
 

   

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