Some reasons affecting the usage of graphite electrode

Going through the whole process of melting, the consumption of graphite electrodes in electric furnace steelmaking is inevitable. Understanding the factors of affection on its consumption is very important for reducing the waste of graphite electrodes and increasing the servicing life.

The most fundamental factor is that the electric furnace needs to be operated properly, including graphite electrodes. The selection of the transmission curve and gear, the control of arc initiation and stabilization voltage, even the configuration of the cooling system, all are the main factors on the influence of service life and consumption of the graphite electrodes. For example, the electrode phase sequence should be correct. If the capacity of the power supply device is too large and exceeds the limitation of the electrode. Graphite electrodes will be red from the bottom to the top. Reducing the oxidation consumption around the electrodes, strengthening the sealability of the furnace and reducing air intrusion into the furnace. Adding non-conductive objects such as lime in the furnace, especially accumulating directly below, makes it very easy to make the breakage of the electrodes.