Preparing process of aluminum alloy for mobile phone shell

A preparation process and a technology for mobile phone casings, which are applied in the field of aluminum alloy preparation, can solve the problems of failing to meet the heat dissipation requirements of mobile phones, affecting the service life of mobile phones, and poor surface effect, achieving high hardness, improving organizational structure, and increasing service life. Effect

Active Publication Date: 2018-12-14
山东创新精密科技有限公司
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Problems solved by technology

Aluminum alloys for mobile phone casings are required to have a certain strength, hardness, grain size, and surface coarse-grained layer thickness. In the prior art, aluminum alloys that can be applied to mobile phone casings are easily deformed due to strength problems, and after processing, due to the grain structure The reason, the sur

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Embodiment １

[0032] A process for preparing an aluminum alloy for a mobile phone shell of the present invention, the aluminum alloy comprises the following components by weight ratio: Zn 4%, Mg 1.5%, Cu 1.5%, Si 1%, B 0.5%, Fe 0.8%, Ni 1%, Mo 1%, Cr≤0.01%, Ti≤0.01%, Zr≤0.05%, rare earth elements 0.5%, the content of other single impurity elements≤0.01%, and the balance is aluminum. Described preparation process comprises the following steps:

[0033] (1) Melting, deslagging, degassing, and pouring to obtain aluminum alloy ingots; the melting temperature is 750-780°C, and during the smelting process, a refining agent is added consisting of the following components by weight: KCl 2 45 parts, MgCl 2 45 parts, CaF 2 10 parts, Na 2 CO 3 10 parts, Na 2 SO 4 10 parts, Na 3 AlF 6 2 parts; inert gas is introduced during the slag removal process.

[0034] (2) Homogenization treatment, heat the aluminum alloy ingot to 480°C for homogenization treatment, and keep it warm for 14h.

[00...

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Abstract

The invention discloses a preparing process of an aluminum alloy for a mobile phone shell. The aluminum alloy comprises, by weight percent, 3 to 6% of Zn, 1 to 2% of Mg, 0.5 to 2% of Cu, 0.5 to 1.5% of Si, 0.01 to 0.1% of B, 0.5 to 1% of Fe, 0.1 to 2% of Ni, 0.1 to 2% of Mo, not larger than 0.02% of Cr, not larger than 0.025% of Ti, not larger than 0.1% of Zr, 0.2 to 1% of rare earth, not larger than 0.01% of other single impurities and the balance aluminum. The aluminum alloy prepared through the process improves the preparing process of an existing aluminum alloy, on the basis of ensuring strength and machining performance of the aluminum alloy, the friction resistance properties and excellent heat conduction properties are considered, and the aluminum alloy is suitable for being used inthe mobile phone shell.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy preparation technology, in particular to an aluminum alloy preparation process for a mobile phone casing. Background technique [0002] Aluminum alloy has excellent mechanical properties and processing properties, and is now widely used in structural parts of electronic products. Aluminum alloys for mobile phone casings are required to have a certain strength, hardness, grain size, and surface coarse-grained layer thickness. In the prior art, aluminum alloys that can be applied to mobile phone casings are easily deformed due to strength problems, and after processing, due to the grain structure The reason is that the surface effect is not good. In addition, the problem of heat dissipation needs to be solved. The aluminum alloys used for mobile phone casings in the prior art usually have low thermal conductivity, which cannot meet the heat dissipation requirements of mobile phones, resultin...

Claims

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Application Information

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IPC IPC(8): C22C21/10C22F1/053C22C1/06
CPCC22C1/06C22C21/10C22F1/053
Inventor 崔立新赵晓光孟杰卢振勇王金山张光勇成凯
Owner 山东创新精密科技有限公司
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