Mobile phone shell and preparation process thereof

Abstract

The invention provides a mobile phone casing and a preparation process thereof. The mobile phone casing contains the following raw materials in parts by weight: 1-1.8 parts of Mg, 0.5-1.1 parts of Si, 0.3-1 part of Co, and the balance is Al and Unavoidable impurities. The aluminum alloy shell provided by the present invention has very excellent stamping performance and high strength, and is especially suitable for the preparation of mobile phone shells that need to be stamped and formed through multiple passes, and at the same time require high strength, and meet high appearance and performance requirements. Requirements for thin-walled shell members. The coated decorative film layer makes the mobile phone shell have the advantages of high brightness and metal texture, and has high brightness and good adhesion.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to a mobile phone casing and a preparation process thereof. Background technique [0002] The preparation methods of aluminum alloy mobile phone shells mainly include die-casting, extrusion + CNC, stamping and other processes. Among them, it is difficult to obtain good anodizing effect for die-casting aluminum alloy. Although extrusion plus CNC process can obtain better anodizing effect, CNC The processing volume is large and the cost is high, and the stamping process not only has the advantage of low cost of the die-casting process, but also can obtain a better anodizing effect, so it has gradually become the preferred solution for the mobile phone casing. [0003] At present, 6063 with better forming performance is generally used in the industry as the raw material for stamping and forming mobile phone casings. However, as smart phones gradually become larger, thin...

AI Technical Summary

Problems solved by technology

[0002] The preparation methods of aluminum alloy mobile phone shells mainly include die-casting, extrusion + CNC, stamping and other processes. Among them, it is difficult to obtain good anodizing effect for die-casting aluminum alloy. Although extrusion plus CNC process can obtain better anodizing effect, CNC The processing volume is large and the cost is high, while the stamping process not only has the advantage of low cost of the die-casting process, but also can obtain a better anodic oxidation effect, so it has gradually become the preferred solution for mobile phone casings

[0003] At present, 6063 with better forming performance is generally used in the industry as the raw material for stamping and forming mobile phone casings. However, as smart phones gradually become larger, thinner, and multi-functional, and the size of mainstream screens continues to increase, larger screens require Higher-strength materials are used for support. The traditional 6063 can no longer meet the strength requirements of the existing shell, and the formability of other high-strength aluminum alloys cannot meet the requirements. Therefore, it is urgent to develop a high-strength And the aluminum alloy with excellent stamping performance is used to make high-performance aluminum alloy mobile phone casing