METHOD FOR DEOXIDIZING REFINING OF MOLTEN STEEL AND METHOD FOR PRODUCING STEEL MATERIAL Russian patent published in 2025 - IPC C21C7/10 C21C7/06 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy and can be used for deoxidizing refining of molten steel using vacuum refining equipment. Method includes addition of Al-containing substance to molten steel inside vacuum tank and deoxidizing refining of molten steel, at that, temperature changes, ΔT₁ and ΔT₂, of molten steel during deoxidation by element Al satisfy the formula ΔT₁ + ΔT₂ < 0, where ΔT₁, °C, is the value of the temperature rise associated with the release of the oxidation reaction heat of the Al element, and ΔT₂, °C is the value of temperature drop caused by heat content of the added Al-containing substance.

EFFECT: invention makes it possible to carry out vacuum refining in a short period of time and to increase output of Al added during deoxidation of molten steel.

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