Production process of aluminum alloy shell for electronic product

Abstract

The invention relates to a production process of an aluminum alloy shell for an electronic product. The production process comprises the following steps of molten aluminum alloy melting, grain refinement, blowing refining in a furnace, online degassing filtering, semi-continuous casting, extrusion, quenching, aging treatment, hot isostatic pressing treatment and the like. The aluminum alloy product comprises the following elements in percentage by mass, including 9-11% of Si; 5-6% of Mg; 1.5-2.0% of Cu; 1.0-1.3% of Zn; 0.5-0.7% of Cu; 0.21-0.26% of Mn; 0.13-0.16% of Zr; 0.15-0.25% of Y; 0.015-0.03% of Ti; 0.003-0.006% of B; and the balance of Al and inevitable impurity elements. On the basis of ensuring the anodic oxidation performance of the aluminum alloy, the strength of the aluminum alloy is improved, and the aluminum alloy is an ideal material for manufacturing shells for electronic products and has very wide market application prospects.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a production process of an aluminum alloy casing for electronic products. Background technique [0002] With the improvement of consumption level, consumers not only pay attention to the quality of electronic products, but also pay more and more attention to the texture and touch of their appearance and surface. Aluminum alloy casing can bring unparalleled visual impact, and has the advantages of delicate hand feeling, anti-fall, anti-corrosion, etc. It has always been favored by consumers and represents the development direction of high-end electronic product casings. [0003] Generally speaking, at present, the casings of various electronic products are mostly formed of aluminum alloy through a die-casting process. At present, the aluminum alloy used for electronic product housing is mainly 6063 alloy. 6063 alloy is a medium-strength aluminum alloy. Although it has ex...

AI Technical Summary

Problems solved by technology

6063 alloy is a medium-strength aluminum alloy. Although it has excellent extrusion processing performance and oxidation coloring effect, its strength is generally low, which cannot meet the development requirements of large-screen and thinner consumer electronics products.

7003 alloy is a high-strength aluminum alloy that can be heat-treated and strengthened. Although it has the advantage of high strength, the oxidation coloring effect is poor, and the oxide film often has defects such as structure stripes and color difference, which leads to the texture of the 7003 alloy oxide film is not fine enough and the gloss is low. The coloring effect is poor, etc., which cannot meet the high decorative requirements of consumers for the appearance of electronic products, and the heat dissipation performance of aluminum alloy shells for electronic products also needs to be improved

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