UHP 500 500*1800mm, 500*2100mm, 500*2400mm
UHP Graphite Electrode / Ultra High Powder Graphite Electrodes

1. Introduction :

UHP graphite electrode is used for sword recycle in electric arch furnace industry. Its chief component is high-value needle coca cola, which is made of petroleum or char tar. The graphite electrode is machined in a cylindrical human body and a thread area is machined at each end. In this way, the graphite electrode can be assembled into an electrode column using an electrode connection.

In order to meet the requirements of higher work efficiency and lower sum cost, big capacity ultra-high exponent bow furnace is becoming more and more popular. therefore, UHP graphite electrodes with a diameter of more than 500 millimeter will dominate the market

Production processing 石墨电极生产工艺流程需转换英文
2. Features

  • high stream underground and senior high school fire rate .
  • good dimensional stability and not easy to deform.
  • resistance to cracking and spalling .
  • high oxidation resistance and thermal traumatize resistance .
  • high mechanical strength and low resistance .
  • high machine preciseness and good surface stopping point .
  • undifferentiated structure, full conduction and thermal conduction

3. Application

Graphite electrode is widely used in the production of alloy steel, metal and other non-metallic materials.

DC electric arc furnace.

AC arc furnace.

Submerged arc furnace.

Ladle furnace.
( 1 ) even world power graphite electrode

It is allowed to use graphite electrode with current density lower than 17a / cm2, which is chiefly used in average power electric furnaces for steelmaking, silicon smelt, chicken morning star smelt, etc.

( 2 ) oxidation resistant coated graphite electrode

Graphite electrode coated with a layer of antioxidant protective layer ( graphite electrode antioxidant ). Form a protective level that can conduct electricity and resist high-temperature oxidation, reduce the electrode pulmonary tuberculosis during steelmaking ( 19 % ~ 50 % ), prolong the service life of the electrode ( 22 % ~ 60 % ), and reduce the electric energy consumption of the electrode. The popularization and habit of this technology can bring such economic and social effects :

① The unit pulmonary tuberculosis of graphite electrode is less, and the production monetary value is reduced to a certain extent. For case, in a steelmaking plant, based on the pulmonary tuberculosis of 35pcs graphite electrodes per week and 165 refining furnaces in the primary LF refine furnace without shutdown throughout the class, 373pcs graphite electrodes can be saved every year after the graphite electrode oxidation electric resistance technology is adopted

( 153 tons ) electrode, calculated at 3000USD per short ton of ultra-high world power electrode per year, USD 459,000 can be saved.

② The graphite electrode consumes less might, saves the unit steelmaking world power pulmonary tuberculosis, saves the production cost and saves energy !

③ Because the graphite electrode is changed less times, the amount of tug and risk coefficient of operators are reduced, and the production efficiency is improved.

④ Graphite electrode is a low consumption and broken contamination product. nowadays, when energy conservation, emission decrease and environmental protection are advocated, it has identical crucial social significance.

This technology is calm in the research and development stage in China, and some domestic manufacturers have besides begun to produce it. It has been widely used in Japan and other evolve countries. At present, there are besides companies specializing in importing this anti-oxidation protective application in China.

( 3 ) High power graphite electrode. Graphite electrode with current concentration of 18 ~ 25A / cm2 is allowed to be used, which is chiefly used in high-power electric arc furnace for steelmaking.

( 4 ) Ultra high power graphite electrode. UHP Graphite electrodes with a current concentration greater than 25A / cm2 are allowed. It is chiefly used for ultra-high exponent steelmaking electric discharge furnace.
石墨电极用途
4. Nipple

3TPI/T4L/T4N Or Customized
electrode Nipple
5.  Product Parameters

examination Results : Properties for UHP500

nipple ad ( gm/cc ) g/cm3 SPR ( ohm Micro mtr ) µΩ.m MOR ( Nmm2 ) Mpa MOE ( kg/mm2 ) grade point average CTE//cmcmC x10-7 ( 0-50℃ ) 10-6/℃ ( 100-600℃ )
soap 1.83 3.9 25.12 16 1.2
min 1.75 2.9 18 12 0.9
AVG 1.78 3.6 22.5 14 1.1

electrode ad ( gm/cc ) g/cm3 SPR ( ohm Micro mtr ) µΩ.m MOR ( Nmm2 ) Mpa MOE ( kg/mm2 ) grade point average CTE//cmcmC x10-7 ( 0-50℃ ) 10-6/℃ ( 100-600℃ )
soap 1.73 5.7 14.5 12 1.45
min 1.66 4.8 11 8 1.20
AVG 1.69 5.3 12.5 9.8

1.35

Graphite Electrode More specification and Details :  For following just for your reference  :
For more details ,Kindly click the Button ” Contact us ” Talk to me on Line  or E-mail: sales@china-xingshi.com  , also Whatsapp ,wechat : +86 13028650772

Items regular power ( RP ) gamey power ( HP ) Ultrahigh exponent ( UHP )
⌽200-300 ⌽350-600 ⌽700 ⌽200-400 ⌽450-600 ⌽700 ⌽250-400 ⌽450-600 ⌽700
ResistanceμΩm(Max) electrode 7.5 8.0 6.5 7.0 5.5 5.5
nipple 6.0 6.5 5.0 5.5 3.8 3.6
BulkDensityg/cm3(Min) electrode 1.53 1.52 1.53 1.62 1.60 1.62 1.67 1.66 1.66
nipple 1.69 1.68 1.73 1.72 1.75 1.78
BendingStrengthMpa(Min) electrode 8.5 7.0 6.5 10.5 9.8 10.0 11.0 11.0
nipple 15.0 15.0 16.0 16.0 20.0 20.0
Young’smodulusGpa(Max) electrode 9.3 9.0 12.0 12.0 14.0 14.0
nipple 14.0 14.0 16.0 16.0 18.0 22.0
Ash % (Max) electrode 0.5 0.5 0.3 0.3 0.3 0.3
nipple 0.5 0.5 0.3 0.3 0.3 0.3
CTE ( 100-600℃ ) ×10-6/℃ electrode 2.9 2.9 2.4 2.4 1.5 1.4
nipple 2.8 2.8 2.2 2.2 1.4 1.2

The quality of our product is recognized by the quality interrogation center of the national metallurgy carbon paper material sampling analyze to all attain the YB/T4088-2015、YB/T4089-2015、YB/T4090-2015. Standard Sizes of Electrode : If there are especial specification requirements, both sides consult provide & demand.

Standard sizes of electrode
Specifications ( edge ) allowable Diameter ( millimeter ) allowable Length ( millimeter )
nominative diameter Max . Min . nominal length Max . Min .
6 150 154 151 1600 1700 1500
1800 1875 1700
8 200 205 200 1600 1700 1500
1800 1875 1700
9 225 230 225 1600 1700 1500
1800 1875 1700
10 250 256 251 1600 1700 1500
1800 1875 1700
12 300 307 302 1800 1875 1700
14 350 357 352 1600 1700 1500
1800 1875 1700
16 400 409 403 1600 1500 1500
1800 1875 1700
2100 2175 1975
18 450 460 454 1800 1875 1700
2100 2175 1975
2400 2475 2275
20 500 511 505 1800 1875 1700
2100 2175 1975
2400 2475 2275
22 550 562 556 2100 2175 1975
2400 2475 2275
24 600 613 607 2100 2175 1975
2400 2475 2275
2800 2850 2550
28 700 714 708 2400 2475 2275
2800 2850 2550

current Carrying Capacity for Graphite Electrode :

nominal Diameter ( millimeter ) regular exponent senior high school baron Ulra senior high school baron
current Load(A) Current Density(A/cm2 ) current Load(A) Current Density(A/cm2 ) current Load(A) Current Density(A/cm2 )
200 5000-6900 15-21 5500-9000 18-25 ———— ————
225 6100-8600 15-21 6500-10000 18-25 ———— ————
250 7000~10000 14-20 8000~13000 18-25 ———— ————
300 10000~13000 14-18 13000~17400 17-24 15000~22000 20-30
350 13500~18000 14-18 17400~24000 17-24 20000~30000 20-30
400 18000~23500 14-18 21000~31000 16-24 25000~40000 19-30
450 22000~27000 13-17 25000~40000 15-24 32000~45000 19-27
500 25000~32000 13-16 30000~48000 15-24 38000~55000 18-27
550 32000~40000 13-16 37000~57000 15-23 42000~66000 17-26
600 38000~47000 13-16 44000~67000 15-23 49000~88000 17-26
700 48000~59000 12-15 59620~83600 13-18 70000-110000

17-24

Leave a Reply

Your email address will not be published.