A low-cost production method of low-carbon enamelled steel

Abstract

The invention discloses a low-cost production method of low-carbon enamelled steel, which mainly solves the technical problems in the prior art that the low-carbon enameled steel must adopt the RH furnace vacuum refining process and the production cost is high. The technical solution of the present invention is: a low-cost production method of low-carbon enamelled steel, comprising: using a top-bottom combined blowing converter for smelting, the mass percentage of the main metal raw material is 75% to 100% of molten iron, and the balance is scrap steel; The control of the converter smelting end point is to detect the w[C] and temperature of the molten steel at the converter blowing end point; the steel is tapped immediately after the converter blowing end; the molten steel in the ladle is transported to the LF furnace for the regulation of the molten steel temperature and the composition of the molten steel. The low-carbon enamel steel produced by the method of the invention has low cost, and compared with the existing RH furnace vacuum refining process, the production cost is 20 yuan / ton steel lower.

Description

technical field [0001] The present invention relates to a production method of low-carbon enamel steel, in particular to a low-cost production method of low-carbon enamel steel; in particular, it relates to a production method for regulating carbon and nitrogen elements in low-carbon enamel steel by adopting LF furnace technology , belongs to the technical field of steel smelting and continuous casting. Background technique [0002] Low-carbon enamel steel is enamel enamel on the surface of the steel plate to prevent the steel plate from rusting, so that the steel plate will not form an oxide layer on the surface when it is heated and resist various liquids. It is widely used in eating utensils and washing utensils used in daily life. In order to prevent defects such as pinholes, bubbles, "lin burst" and product deformation of low-carbon enamelled steel at high temperatures, it is necessary to precisely control the carbon content of the finished product; at the same time, i...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a low-cost production method of low-carbon enamelled steel, which mainly solves the technical problem that low-carbon enameled steel must adopt RH furnace vacuum refining process and high production cost in the prior art; the method of the present invention solves the current It is difficult to produce qualified low-carbon enamelled steel with the LF furnace refining process, which reduces the cost of low-carbon enameled steel