A kind of high-strength high-plasticity steel making and production method thereof

Abstract

The invention provides a high-strength and high-plasticity steel-making method and a production method thereof, and relates to the technical field of high-strength and high-plasticity steel-making. Step 1: Raw material preparation: Optimizing iron ore and scrap steel, through crushing, grinding, magnetic separation, flotation, re-election, and then cleaning and crushing the scrap recycled steel, Step 2: Composition control: Ni 18% , Ti0.2%‑0.8%, Al0.1%‑0.4%, Co0.3%‑0.9%, Mo1.2%‑2.5%, C0.3%, and the rest is iron. Step 3: melting: for iron The ore is melted, and then the waste recycled steel is melted, mixed, and an appropriate amount of coal water slurry is added to remove silicide. During steelmaking, the silicide produced by the input limestone is collected and utilized, and the oxide layer can be removed through the scrap recycled steel, which can improve the melting efficiency of ore and the production efficiency of molten iron, and then add an appropriate amount of beneficial metals for oxidation Materials, which can improve strength and plasticity, mixed with recycled steel, can improve environmental efficiency.

Description

A kind of high-strength and high-plasticity steel making and production method thereof technical field The present invention relates to the technical field of high-strength and high-plasticity steel-making, in particular to a kind of high-strength and high-plasticity steelmaking and production thereof method. Background technique Steelmaking refers to controlling carbon content (generally less than 2%), eliminating harmful elements such as P, S, O, N, retaining or increasing Si, Mn, Ni, Cr and other beneficial elements and adjust the ratio between the elements to obtain the best performance, put the pig iron for steelmaking into the steelmaking furnace and press one Steel is obtained by smelting in a fixed process. Steel products include ingots, continuous casting billets and direct casting into various steel castings. Generally speaking, steel, Generally, it refers to steel rolled into various steels. Steel is a ferrous metal, but steel is not exactly equal to ferro...

AI Technical Summary

Problems solved by technology

[0003] Most of the currently used steelmaking uses iron ore for optimization and melting, but when the existing scrap recycled steel is mixed with molten iron, a large amount of silicide will increase the melting point, resulting in increased energy consumption and reduced environmental protection efficiency, followed by subsequent During the refining process, there is no molten iron mixed with scrap recycled steel, which reduces production efficiency and also causes a lot of energy consumption

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