600mm Graphite Electrode UHP

600mm Graphite Electrode UHP is often used in AC electric arc furnace.

Main features:

• Higher bulk density
• Very low resistivity
• Allow large current load
• High flexural strength
• Small thermal expansion coefficient

The following are the applications of electric arc furnaces and graphite electrode uhp 600

Manufacturing using high-quality needle coke

Using high-quality needle coke and modified pitch binder to develop high-quality UHP graphite electrodes makes high-energy load resistance and high-current operation possible.

With the development of the industrial economy, many countries have reformed. They are actively stipulating the self-sufficiency system of steel production.They have introduced electric arc furnace steelmaking one after another.

Quality requirements:

1. In terms of appearance and surface parameters, the graphite electrodes must meet the following requirements:

on-perpendicularity of the generatrix of the electrode surface to the end should not be more than 0.20 mm.
-the flatness of the end surfaces of the electrode should not be more than 0.15 mm.
– ovality and conicity of the generatrix of the electrode surface should not exceed half the tolerance on the diameter of the electrode. The depressions should not exceed the maximum deviations in the diameter of the electrode.
– on the surface of the electrodes are not allowed:
1) chipped edges of each end with a depth of more than 8 mm, a total length of more than 40 mm;
2) chips and shells on the surface with a depth of more than 8 mm, a length of 20 mm;
3) more than two longitudinal cracks at a distance of at least 200 mm from the bottom of the nipple socket to the middle of the electrode with a length of more than 5% of the perimeter of the electrode section;
4) transverse cracks.
2. In terms of appearance and surface parameters, nipples and nipple sockets must comply with the following requirements.
– misalignment of the nipple socket relative to the generatrix should not be more than 1 mm.
– the ovality of the nipple seat along the inner diameter in the area up to 60 ° should not be more than 0.6 mm.
– recesses from centering on the ends of the nipples should not be more than 15 mm.
– on the surface of nipples and nipple sockets it is not allowed:
1) more than two chips of threads with a length of more than 15 mm;

Contact us for high quality UHP Graphite Electrode 600.