Ferrovanadium For Smelting

In alloy structural steel, it refines the grains to increase the strength and toughness of steel;

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Description

Products Description

Mainly used for smelting alloy steel. About 90% of the vanadium consumed in the world is used in the steel industry. Vanadium in ordinary low-alloy steel mainly refines grains, increases the strength of steel and inhibits its aging effect;

in spring steel, it is used in conjunction with chromium or manganese to increase the elastic limit of steel and improve its quality; in tool steel, it mainly refines the structure of steel and crystal grains, increase the tempering stability of steel, enhance its secondary hardening effect, improve its wear resistance, and prolong the service life of tools;

In heat-resistant steel and hydrogen-resistant steel, vanadium also plays a beneficial role; vanadium added to cast iron promotes the formation of pearlite due to the formation of carbides, stabilizes cementite, and the shape of graphite particles is fine and uniform, and the matrix is refined The crystal grains, thus improving the hardness, tensile strength and wear resistance of the casting.

Product Parameters

The smelting process is carried out in two steps.

The first step is the reduction period, using ferrosilicon and aluminum to reduce vanadium oxide to obtain vanadium-silicon ferrosilicon alloy with high silicon content;

The second step is the refining period, using slag with high V2O5 to refine vanadium-silicon ferroalloy, reducing silicon to obtain ferrovanadium. After the previous furnace is released and the furnace is repaired, all the iron materials required for the production of ferrovanadium are added. After the power is turned on, the refining slag from the previous furnace is returned to the furnace, and the first batch of raw materials (vanadium pentoxide melt flakes) is added. , lime and most of the ingredients of ferrosilicon).

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