Silicon carbide deoxidation steel production process

Abstract

The invention relates to a silicon carbide deoxidation steel production process, and relates to a process of not needing to use aluminum for deoxidation of a deep deoxidized steel in the whole process. Through optimization of the converter tapping deoxidation system and the slagging system, an LF furnace is added with silicon carbide for deoxidation and slagging, and is matched with a production process of feeding aluminum wires in the LF furnace to finely adjust aluminum in molten steel; the characteristics of silicon carbide and aluminum are used for fully and reasonably combining the dispersion deoxidation with the precipitation deoxidation in the smelting process; the process is stable in converter tapping deoxidation; the LF furnace is obvious in slagging and desulfurization effect; the casting blank quality is excellent; the steel plate flaw detection pass percent is stable; the aluminum consumption in one tonnage of steel for deep deoxidation steel production is reduced by about 0.42 kg; and the economic benefit in deep deoxidation steel production is greatly improved.

Description

technical field [0001] The invention belongs to a steelmaking process in the field of metallurgy, in particular to a silicon carbide deoxidation steelmaking process. Background technique [0002] The deoxidation system in the smelting process is the key process for producing high-quality steel. As the most common active deoxidizer in the steelmaking process, aluminum is widely used in major steelmaking plants. Especially in the production of deep deoxidized steel, the consumption of aluminum per ton of steel in the production process of deoxidized steel is as high as about 2kg, which increases the production cost and reduces the economic benefits of steel manufacturers. With the downturn in the steel market, reducing production costs has become the main way for various steel companies to increase their profits. Reducing the consumption of aluminum in the production of deep deoxidized steel can be used as a bright spot for tapping potential and reducing costs, and the benefi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: how to solve the prominent problem of high aluminum consumption in the production of deep deoxidized steel through the optimization of the steel deoxidation system and slagging system, so as to reduce the aluminum consumption per ton of steel for the production of deep deoxidized steel without Affect the quality of billet

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