What are the characteristics of supercharged induction furnace smelting?

A new high-pressure metallurgy technology recently launched during the smelting of pressurized induction furnaces.

The supercharged induction furnace is a steelmaking equipment that is smelted in a high pressure nitrogen atmosphere of 0.2 to 2.0 MPa. Its heating principle is the same as that of the medium frequency induction furnace.

When the supercharged induction furnace is smelted, the heating and melting of the charge, the fine alloying, the tapping and pouring, and the ingot cooling are all completed in high pressure nitrogen.

The supercharged induction furnace is mainly used for smelting new-type metal materials, nickel-type special steel with N mass fraction ≥0.60%. At present, the use of a supercharged induction furnace smelting process has produced stainless steel with a mass fraction of 1.2% and special tool steels and die steels with a mass fraction of 2.0% are being developed.

Nitrogen is an element that improves the strength of steel without reducing the resistance and corrosion resistance of steel. Nitrogen is also an element that can replace nickel. However, due to the solubility of nitrogen in steel. Medium-frequency induction furnaces and other smelting methods can only produce steel grades with N mass fraction <0.60% under normal pressure. Beyond this content, nitrogen will form bubbles inside the steel ingot. In order to deal with this problem, the supercharging induction furnace smelting process and corresponding equipment appeared.

For more information about the intermediate frequency electric furnace, diathermy furnace and induction furnace of Kunshan Wantai Electric Furnace Co., Ltd., please contact Xiaobian.

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