Preparation method of twin crystal induced plastic steel plate

Abstract

The invention relates to the technical field of metallurgy, in particular to a preparation method of a twin crystal induced plastic steel plate. The technical scheme adopted by the invention is as follows: proportioning, wherein the raw materials comprise the following components by weight percent: 0.01-0.1% of C, 17-30% of Mn, 0.01-1% of Al, 0.01-1% of Si, less than or equal to 0.1% of P, less than or equal to 0.1% of S, 0.03-0.2% of V, 0.03-0.2% of La and the balance Fe; smelting in an intermediate frequency furnace; installing a heated side seal plate on a casting and rolling mill; pouringmolten steel in the casting and rolling mill under the protection of argon to cast and roll the molten steel into a thin strip; and finally performing air cooling or water quenching on the prepared thin strip to cool to the normal temperature, and performing acid pickling, cold rolling and heat preservation to form the final product. The method provided by the invention needs no conventional hot rolling treatment and the required thickness of cold rolling can be obtained directly through cold rolling, thereby greatly reducing the production cost.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for preparing a twin-induced plasticity steel plate. Background technique [0002] The important development direction of modern automobile structure, performance and technology is to reduce weight, save energy, reduce emission and improve safety. High strength is a major trend in the development of steel for automobiles, and people are constantly pursuing the improvement of the comprehensive performance of steel strength and ductility. With the development of the metallurgical industry, two-way steel and phase transformation induced plasticity steel have been developed successively, and have been widely used in the automobile industry, which has played a powerful role in promoting the development of the automobile industry. The newly developed twin-induced plasticity steel is a breakthrough in the comprehensive performance of steel in terms of strength and ductility...

AI Technical Summary

Problems solved by technology

On the one hand, this increases the investment in infrastructure, on the other hand, it will inevitably cause thermal processing loss of materials during the hot rolling process, reduce the utilization rate of materials, and increase production costs.

Moreover, a certain amount of iron oxide scale will be produced during the solid solution and hot rolling treatment, which will also cause certain pollution to the production environment.