In steelmaking process, graphite electrode will produce a certain amount of consumption, which can be divided into normal consumption and very consumption. There are three kinds of consumption in normal consumption: arc consumption, chemical consumption and oxidation consumption. Although they cause loss of graphite electrodes, they are in different ways.
In steelmaking process, graphite electrode will produce a certain amount of consumption, which can be divided into normal consumption and very consumption. There are three kinds of consumption in normal consumption: arc consumption, chemical consumption and oxidation consumption. Although they cause loss of graphite electrodes, they are in different ways.
First of all, arc consumption is also called evaporation consumption, because the high temperature between the electrode and the charge will be as high as 3000 C. Graphite electrodes will continue to be consumed, accounting for about 40% of the normal consumption.
Secondly, chemical consumption refers to the reaction between electrodes and some impurities of iron, calcium and strong oxides in steel or iron in molten steel. This consumption is also directly related to the quality of steel and the diameter of graphite electrodes.
Then oxidation consumption refers to the consumption produced by the reaction with oxygen in steelmaking process, which is related to the atmosphere, gas temperature and gas flow rate in the furnace. 50% of < 60% of normal consumption is found, which is the largest consumption.
Finally, extreme consumption refers to the damage of the machine during wear and tear.