Aluminum alloy for high-strength and high-surface mobile phone casing and preparation method thereof

A mobile phone shell and aluminum alloy technology, which is applied in the field of high-strength and high-surface aluminum alloy for mobile phone shells and its preparation, can solve the problems of not meeting the strength requirements of the mobile phone shell, poor extrudability of the alloy, and high manufacturing cost. Achieve the effects of low preparation cost, reduced scrap rate, and less processing procedures
CN112646991BActive Publication Date: 2022-06-07广东润华轻合金有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广东润华轻合金有限公司
Publication Date
2022-06-07

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Abstract

The invention relates to the technical field of mobile phone casings, in particular to an aluminum alloy for a high-strength and high-surface mobile phone casing and a preparation method thereof. The chemical composition of the aluminum alloy is (wt%): Si: 0.70%-1.4%, Fe: ≤0.15%, Cu: 0.60%‑1.0%, Mn: 0.50%‑0.80%, Mg: 0.60%‑1.20%, Ti: ≤0.015%, other individual: ≤0.05%, and the balance of aluminum. The present invention combines the appearance requirements and strength requirements of the high surface of the aluminum alloy used for the mobile phone case, optimizes the design of a new chemical composition and preparation process of the aluminum alloy, and greatly improves the surface quality of the aluminum alloy used for the mobile phone case while ensuring the high surface quality. The yield strength of the alloy meets the requirements for the use of mobile phone casing materials. The aluminum alloy of the present invention is anodized after CNC, and there are no defects such as material lines, black spots, black lines, color differences and mottled spots, which greatly reduces the resulting reject rate; meanwhile, the aluminum alloy of the present invention has high yield strength, and its yield Strength not less than 360MPa.
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Description

Technical field

[0001] The present invention relates to the technical field of mobile phone housing, specifically a high-strength high-surface mobile phone housing aluminum alloy and preparation method thereof. Background

[0002] With the popularity of smart phones and the improvement of living standards, aluminum alloys with metal texture and high surface of mobile phone cases have been widely used. High-end smartphone housings have phased out traditional plastic, aluminum alloy die-castings, stainless steel and titanium alloy and other fuselage shells, and generally use CNC and surface treatment of high-surface high-strength aluminum alloys. 6000 series aluminum alloy extruded aluminum material was first applied to Apple iPhone6 and Apple iPhone 6plus high-end smart phones, its metallic texture, colorful and rich advantages, by the mobile phone market sought after. 6000 series aluminum alloy has excellent extrusion deformation processing performance, good anodizing effect, low...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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