The method and attention problems of carbon increase in intermediate frequency furnace

The method and attention problems of carbon increase in intermediate frequency furnace

Intermediate frequency furnace ramming material, it is a construction method that has always been a focus of attention. In fact, for intermediate frequency furnaces, how to increase carbon is also a more concerned issue. The editor has collected some knowledge about intermediate frequency furnace carbonization. , The following is a brief introduction to the method of carbon increase and the problems to pay attention to.

The first is the use of recarburizers, one is the intracranial injection method, which is suitable for use in induction furnace smelting, but there are different methods of use according to specific process requirements. The second is the method of extracranial carburization, including encapsulation Spray graphite powder inside, give tips to use carburizer, etc.

The addition time of the recarburizer is a very important issue, and enough attention must be paid to it. If the recarburizer is added too early, it is easy to make it adhere to the vicinity of the furnace bottom, and the recarburizer attached to the furnace wall is also It is not easy to be melted into the molten iron. On the contrary, if the addition time is too late, the opportunity to increase carbon will be lost, resulting in the delay of smelting and heating time. This not only delays the time for chemical composition analysis and adjustment, but also may cause excessive Hazards caused by heating.

There is another problem, that is, the factors that affect the carburizing effect, mainly including the effect of the particle size of the carburizer on the absorptivity, the effect of the amount of the carburizer on the absorptivity, and the effect of temperature on the absorptivity.

When using the recarburizer, there are several problems that need to be paid attention to. One is that the recarburizer is a substance that is difficult to absorb, and the ash content of the recarburizer is too much, and the distribution of the particles is very uneven. If the time is wrong or the time for adding is over, there may be some problems. In addition, try not to use materials with too much rust.