Eliminate the intermediate frequency melting furnace KGPS400 kw -0.75 tons, KGPS500 kw -1 tons, what are the defects of these two devices ?
The intermediate frequency melting furnace is a melting furnace. It can not "purify" steel (iron) water, that is, it does not oxidize impurities such as carbon and phosphorus, and does not restore functions such as degassing and desulfurization. It only alloys after molten steel is melted. Simple precipitation deoxidation. The purity of molten steel cannot be guaranteed, unless it is refined in a refining furnace after melting, but the furnace cannot be matched with a refining furnace (generally 15 tons or more).
At the same time, the intermediate frequency melting furnace will cause pollution to the line power grid, generate harmonics, and have higher requirements on raw materials, and eat “fine grain”.
However, in the production of the intermediate frequency melting furnace , the power is relatively stable, the current impact is small, and the production cost is low because it is not used as a slag.
The electric arc furnace can carry out “three-phase smelting”. The purity of the molten steel is good, the requirements for raw materials are low, and “coarse grains” can be eaten. However, the current impact is greater at the initial stage of melting, and the cost is higher than that of the intermediate frequency melting furnace , and the technical requirements for the operator are relatively high.
