Why can't the intermediate frequency melting furnace be steel?

For example, in the 2005 Industrial Structure Guidance Catalogue, the intermediate frequency melting furnace : the industrial frequency furnace and the intermediate frequency furnace, etc., the steel ingots or continuous casting billets produced by the industrial frequency furnace and the intermediate frequency furnace, and the raw materials produced by them. 9. the production of steel products to be steel ingot or billet unfold ... work

There are two shortcomings in the intermediate frequency furnace.

First, chemical composition adjustment is not easy. For example, smelting ZGMn13Cr2MoVTi is afraid of a steel type, and it is more difficult to smelt with an intermediate frequency furnace. When the molten steel is completely melted, the high temperature molten steel is harmful to the lining during the sampling test. That is to say, the test time is short, and it is not easy to adjust the chemical composition after the test.

Second, the capacity of the intermediate frequency furnace is limited.

At present, steelmaking, such as our unit, uses an electric arc furnace.

Ask

I also hope to use the electric arc furnace, but the intermediate frequency furnace is already on. I am doing the EIA, and the owners are not willing to change this process.

Chasing

If the size of the company is not too large, the intermediate frequency furnace is also completely ok. Our unit has a “casting ball workshop” with a total of 5 intermediate frequency furnaces. The annual output of steel balls is about 20,000 tons and the efficiency is about 9 million. The steel balls produced are exclusively for mine use.

First, chemical composition adjustment is not easy. For example, smelting ZGMn13Cr2MoVTi is afraid of a steel type, and it is more difficult to smelt with an intermediate frequency furnace. When the molten steel is completely melted, the high temperature molten steel is harmful to the lining during the sampling test. That is to say, the test time is short, and it is not easy to adjust the chemical composition after the test.

Second, the capacity of the intermediate frequency furnace is limited.

Profile editor

The intermediate frequency melting furnace refers to an induction furnace that is powered by a power source having a current frequency in the range of 150-8000 Hz . The most used frequency is 150-2500Hz . As the furnace capacity increases, the frequency of the current used decreases. The capacity of the domestic intermediate frequency melting furnace is from 50KG to 20T , and the current frequency is correspondingly 2500-150Hz .

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