UHP graphite electrode meaning? UHP electrode data sheet

By:Win Dec 14, 2020
UHP graphite electrode meaning? UHP electrode data sheet
UHP graphite electrodes mainly used in ultra high power electric arc furnace, Max diameter 700mm, The current density greater than 25 A/cm2.

UHP graphite electrode meaning?

• Description
UHP graphite electrode main ingredient is high-value needle coke which is made from either petroleum or coal tar. It's used for the recycling of steel in the electric arc furnace industry.
Graphite electrodes are machined into cylinders and threaded regions are machined at both ends. In this way, the graphite electrodes can be assembled into an electrode column using electrode nipple.
uhp graphite electrodes structure drawing
Graphite Electrode is composed of rod and nipple.
• Feature
1) Very high electricity load capacity.
2) Bulk density is strictly controlled to have the best thermal shock resistance.
3) Low specific resistance, excellent electrical conductivity, so the energy loss is very small and no electric arc generates at body part.
4) Good high temperature mechanical strength, is not easy to rupture during working.
5) No contamination to the processed steel, only CO or CO2 gas are produced during oxidization.
6) Very low thermal expansion coefficient.
7) Long production cycle and complex processing craft.
8) Precise machining accuracy
• Standards
IEC 60239 Graphite electrodes for electric arc furnaces – Dimensions and designation
YB/T 4088 Graphite electrode
YB/T 4089 High power graphite electrode
YB/T 4090 Ultra high power graphite electrode
• Consumption
The rate at which UHP graphite electrodes are consumed in an EAF depends on the steelmaking or other raw materials used, the grades of steel being produced, and the amount of supplemental (chemical) energy used. EAFs typically consume electrodes at a rate of around 2 kg per tonne of steel produced, with some specialty steel applications consuming at a slightly higher rate.
• Application
Graphite electrodes are widely used for production of alloy steels, metal and other nonmetallic materials, etc.
DC electric arc furnace & AC electric arc furnace & Submerged arc furnace & Ladle furnace
1) AC steelmaking arc furnace
Specifications of graphite electrode used ac steel-making arc furnace, 10 ~ 30 t arc furnace using graphite electrode diameter from 300 ~ 400 mm, 30 ~ 50 t arc furnace using graphite electrode diameter of 450 mm, 60 ~ 80 t arc furnace using graphite electrode diameter of 500 mm, 100 ~ 170 t arc furnace using graphite electrode diameter from 550 ~ 600 mm, 200 t arc furnace using uhp graphite electrode diameter from 600 ~ 700 mm, 250 ~ 300 t eaf with 700 mm diameter uhp graphite electrodes.
2) DC steelmaking arc furnace
Dc steelmaking arc furnace, 30T arc furnace using 450mm diameter graphite electrode, 60T arc furnace using 500mm diameter graphite electrode, 70-80t arc furnace using 600mm diameter uhp electrode, 100-130t arc furnace using 700mm diameter uhp electrode, 150T arc furnace using 750mm diameter uhp electrode.
 Ggraphite electrodes uses

UHP graphite electrode data sheet

• UHP graphite electrode technical specification:
UHP graphite electrode technical specification
• Nominal Diameter of Graphite Electrode (mm):
Nominal Diameter of Graphite Electrode
1. There should be less than two defects or holes on the electrode surface, the max size of which is mentioned in the above chart.        
2. There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width in between 0.3-1.0mm.        
3. The width of black area on electrode surface should be less than 1/10 of electrode circumference and the length less than 1/3 of electrode.  

Graphite electrodes manufacturing

Graphite electrodes manufacturing process pdf
Read more graphite electrodes manufacturing process pdf, Please Dowload: Graphite Electrodes PDF.
  • China graphite electrode, needle coke mar

    China graphite electrode, needle coke mar

    In April 2021, China exported 32,900 tons of graphite electrode, 17,100 tons of oil-based needle coke and 12,200 tons of coal-based needle coke. ... ...Read More>>

    2021-05-25
  • ISO9001 manufacturing and procesing of gr

    ISO9001 manufacturing and procesing of gr

    ISO 9001 is a global quality management system standard, which is the guarantee of the quality of graphite electrodes. Dancarbon graphite electrode products through the ISO9001 quality certification.... ...Read More>>

    2021-05-24
  • Graphite Electrodes for Steel making, Iro

    Graphite Electrodes for Steel making, Iro

    Graphite electrode steelmaking uses alternating current or direct current as the power source, and uses the high temperature of the arc generated between the furnace charge and the graphite electrode to heat the furnace charge.... ...Read More>>

    2021-05-13
  • Eaf graphite electrodes

    Eaf graphite electrodes

    EAF steel-making has high production efficiency, saves energy and reduces environmental pollution, compared with traditional steel-making.... ...Read More>>

    2021-04-20
  • Graphite electrodes china 2021

    Graphite electrodes china 2021

    According to customs data, from January to December in 2020, China exported 306,000 tons of graphite electrodes, 13.8% less than the same period last year. The total amount of graphite electrode export was USD742.977 million, which was USD140718.3 million less than last year.... ...Read More>>

    2021-03-04
  • HD graphite electrodes

    HD graphite electrodes

    HD graphite electrodes means High Density graphite electrodes, Its power is between RP and HP, and its physical and chemical indexes are also between them.... ...Read More>>

    2021-02-24