Three reasons for the drop of the electrode when the high carbon chromium iron is produced
A lot of people have certain understanding of high carbon ferrochrome, but because is not engaged in this industry, so the process of smelting is not very understanding, especially in high carbon ferrochrome why drop electrode at the time of the iron, at the time of smelting high carbon ferrochrome, the tapping time at about ten to twenty minutes, if the tapping process to grasp the right time, not only can reduce the temperature of the furnace bottom, will also reduce the time of smelting high carbon ferrochrome, in order to assure the tapping of the time, so will drop electrode, drop electrode has the following three reasons in detail.
1. After opening the iron outlet, with the gradual flow of molten iron, the distance between the electrode and the surface of the molten iron in the skull will increase, the resistance will increase, and the electrode will significantly decrease, which is conducive to the tea of the electrode, thus creating favorable conditions for the expansion of the crucible and the improvement of the bridge furnace temperature for the next road.
2, electrode arc to emit electrons, with jet pressure, the electrode down, the greater its pressure, but also by this opportunity to promote the rapid outflow of molten iron, shorten the time of iron.
3, as the iron, the crucible will slowly empty, will slow the decline of electrode to prevent collapse, once the improper operation, the tapping process of collapse, so will delay the time of iron, as the molten iron outflow, is expected to fall below, top of the crucible will gradually downward, at this time of the electrode will slowly drop, less time is forced out of iron.
