How are graphite electrodes consumed in EAF steel making?
How are graphite electrodes consumed in EAF steel making?The consumption of graphite electrode is mainly related to the quality of the electrode itself, but al
How are GRAPHITE ELECTRODEs consumed in EAF steel making?
The consumption of GRAPHITE ELECTRODE is mainly related to the quality of the electrode itself, but also with the steelmaking operation
And processes (e.g., current density through electrodes, type of smelting steel, scrap quality and lumpiness,
Oxygen blowing duration, etc.).
(1) Extreme power consumption. The consumption includes graphite material caused by high temperature arc
Loss of sublimation and chemical reaction between electrode and molten steel and slag, electrode consumption
It is also related to whether an electrode is inserted into molten steel to carburize.
(2) Oxidation loss on the outer circular surface of the electrode. In recent years, in order to improve the electric furnace smelting
At the smelting rate, oxygen blowing is often used to increase the oxidation loss of the electrode. general
In this case, the oxidation loss on the outer circular surface of the electrode accounts for about 50% of the total electrode consumption.
(3) Residual loss of electrode or joint. The electrodes are applied continuously to the upper and lower electrodes
A small section of electrode or joint at the pole junction (i.e. residual) is prone to drop and increase consumption.
(4) Loss of electrode breaking, surface peeling and falling block. The three types of electrode loss
Collectively referred to as mechanical loss, wherein the cause of electrode fracture and shedding is steel mill and stone
The ink electrode manufacturer identified the disputed point of quality accident as it could be due to graphite electricity
Pole (especially electrode joint) quality and processing problems, may also be steelmaking
Operational issues.
The inevitable electrode elimination such as oxidation and sublimation at high temperature will be used in eAF steel mills
Consumption is called "net consumption", "net consumption" plus mechanical loss such as fracture and residual loss is called
"Gross consumption." At present, the GRAPHITE ELECTRODE consumption per ton of eaf steel in China is l.5~6kg. in
In the process of steel smelting, electrode is gradually consumed by oxidation into a cone, which is often observed in the process of steel making
The oxidation resistance of GRAPHITE ELECTRODE is measured by observing the taper of electrode and redness of electrode body
Intuitive method of
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Article Tags:
graphite electrodes
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