Method for rolling high-strength hard aluminum alloy

Abstract

The invention relates to a novel method for rolling high-strength hard aluminum alloy. The method is characterized in that a strong magnetic field is applied when aluminum alloy is rolled, resistance to deformation of material can be reduced through the strong magnetic field, and the performance of deformation of material can be raised. Ultrathin and high-performance aluminum alloy can be produced through controlling intensity of magnetic induction of the strong magnetic field, the action time of the strong magnetic field, the rolling temperature, the rolling speed and proper reduction. The method is advantageous in that single pass reduction can be distinctly increased, the rolling efficiency of the high-strength hard aluminum alloy can be raised, the power consumption of a rolling mill is reduced, and the cost is saved. In addition, compared with a common rolling method, resistance to deformation of material is reduced, the grains are refined, the texture is uniformed, a part of the residual stress can be eliminated, defects caused by rolling can be reduced, and the yield during a rolling process can be raised by adopting the method to roll, so a thinner and better product can be achieved.

Description

technical field [0001] The invention mainly relates to a rolling method of high-strength and hard aluminum alloys. During the production process of plates and strips, by applying a certain magnetic field and optimizing the rolling process, the efficiency and quality of rolled products can be simultaneously improved. Background technique [0002] Aluminum sheet and strip is the third major category of rapid development in China. In 2001, the production capacity of aluminum sheet and strip was only 952,000 tons and 610,000 tons, and by 2009 it reached 5.23 and 4.19 million tons respectively; from the current development situation, high-precision aluminum strip The development momentum is very strong, characterized by more modern equipment, and the production capacity is generally above 250,000 tons per year. However, in developed aluminum industrial countries, such as the United States, Germany, Japan, etc., in the aluminum processing industry, aluminum rolled products The rat...

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Problems solved by technology

[0007] Therefore, this invention aims to optimize the rolling method of high-strength and hard aluminum alloys by using a strong pulsed magnetic field, so as to solve the problem that ultra-thinness cannot be achieved during the rolling process of high-strength and hard aluminum alloys, cracks are prone to appear in the later stage of rolling, and there are many defects in rolled products. The problem of high power consumption in rolling

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