Aluminum alloy and preparation method thereof

Abstract

The invention provides a preparation method of an aluminum alloy, which comprises the following steps: carrying out heating treatment on a regenerated aluminum alloy to melt the regenerated aluminum alloy; adding industrial silicon and iron and steel waste into the molten regenerated aluminum alloy, and heating to 780-820 DEG C to melt the industrial silicon and the iron and steel waste; the temperature of the molten regenerated aluminum alloy is reduced to 710-730 DEG C, magnesium alloy waste is added into the molten regenerated aluminum alloy, and a mixed melt is obtained; carrying out refining treatment on the mixed melt, and measuring the content of each component in the refined mixed melt; and the mixed melt is cooled, the aluminum alloy is obtained, and the aluminum alloy comprises, by mass, 6%-15% of silicon, 0.1%-1% of iron, 0.4%-2% of magnesium and 78%-90.6% of aluminum. The invention further provides the aluminum alloy prepared through the preparation method of the aluminum alloy. The aluminum alloy disclosed by the invention has better tensile strength, yield strength, percentage elongation after fracture and heat-conducting property.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy preparation method and an aluminum alloy prepared by the aluminum alloy preparation method. Background technique [0002] Aluminum alloy has the advantages of light weight, softness, high strength, good corrosion resistance, and superior processing performance, and is widely used in various industries. In order to reduce resource consumption, secondary aluminum alloys are usually hot-melted and recast for reuse. Since the various properties of the secondary aluminum alloy (such as tensile strength, yield strength, elongation after fracture, thermal conductivity, etc.) have dropped significantly, and the secondary aluminum alloy has been treated by the existing aluminum alloy preparation method The properties of the obtained aluminum alloy are also poor, resulting in a narrow application range of the recycled aluminum alloy. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a method for preparing an aluminum alloy, aiming at solving the problems of tensile strength, yield strength, elongation after fracture, and low thermal conductivity