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A kind of aluminum alloy material and manufacturing method for electronic product casing

A technology for aluminum alloy materials and electronic products, which is applied in the field of aluminum alloy materials and production for electronic product casings, can solve problems such as affecting product appearance, low product yield, deformation and bending, etc., and achieves good drop resistance and reduced production. cost, performance improvement

Active Publication Date: 2017-03-22
DONGGUAN HUAJING POWDER METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These aluminum materials are prone to deformation and bending after high temperature treatment or extrusion, which affects the appearance of the product and causes the product yield to be too low

Method used

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  • A kind of aluminum alloy material and manufacturing method for electronic product casing
  • A kind of aluminum alloy material and manufacturing method for electronic product casing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. The metal raw materials are Al 70%, Si 20%, Zn 7%, SiC 0.8%, Al 2 o 3 The mass ratio of 2.2% is mixed evenly;

[0040] 2. Melt the above mixed metal raw materials into a liquid state at 760°C in a melting furnace;

[0041] 3. The above aluminum alloys are formed into blocks by spray molding. Spray molding uses high-pressure inert gas to atomize the alloy liquid flow into small molten droplets, flies and cools under high-speed airflow, and deposits aluminum alloy before it is completely solidified. Block blanks;

[0042] 4. The above-prepared blocks are hot-extruded into plates;

[0043] 5. After being processed into a plate, it is then processed into the shape of a mobile phone shell by CNC;

[0044] 6. The aluminum material prepared in the above process is coated with a layer of ceramic composite material on the surface by vacuum thermal spraying, and the surface brightness is good after surface polishing.

[0045] After experimental testing, the aluminum allo...

Embodiment 2

[0049] 1. The metal raw materials are Al 68%, Si 23%, Zn 6%, SiC 0.5%, Al 2 o3 The mass ratio of 2.5% is mixed evenly;

[0050] 2. Melt the above mixed metal raw materials into a liquid state at 760°C in a melting furnace;

[0051] 3. The above aluminum alloys are formed into blocks by spray molding. Spray molding uses high-pressure inert gas to atomize the alloy liquid flow into small molten droplets, flies and cools under high-speed airflow, and deposits aluminum alloy before it is completely solidified. Block blanks;

[0052] 4. The above-prepared blocks are hot-extruded into plates;

[0053] 5. After being processed into a plate, it is then processed into the shape of a mobile phone shell by CNC;

[0054] 6. The aluminum material prepared in the above process is coated with a layer of ceramic composite material on the surface by vacuum thermal spraying, and the surface brightness is good after surface polishing.

[0055] After experimental testing, the aluminum alloy ...

example 1

[0067] 1. Weigh TiO according to mass percentage 2 58.0~60.0%, Al 2 o 3 20.0~25.0%, ZrO 2 4.0~6.0%, Y 2 o 3 0.5~1.0%, Cr 2 B 0.8~1.0%, Ni 8~10%, Mo 0.8~1.0% and other ceramic powder raw materials;

[0068] 2. The above ceramic powder raw materials, the particle size of the ceramic powder raw materials provided by the particle size is 1-3μm, after high-energy ball milling and nano-sand grinding, the particle size of the powder is ground to 500-800nm;

[0069] 3. Evaporate the water in the ceramic slurry prepared above in a spray dryer, where the inlet temperature is set to 280°C and the outlet temperature is set to 80°C;

[0070] 4. After the ceramic powder prepared by this method is melted at high temperature in a vacuum thermal spraying machine, it is sprayed and attached to the surface of the aluminum alloy substrate under the push of compressed gas to form a high hardness and high strength with a thickness of 0.1-1.0mm. ceramic coating.

[0071] 5. After the coa...

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Abstract

The invention discloses aluminum alloy material used for electronic product shells. The aluminum alloy material comprises the following the components of, by mass, 70%-80% of Al, 20%-25% of Si, 5%-7% of Zn, 0.5%-0.8% of SiC and 2%-4.5% of Al2O3. A method for manufacturing the electronic product shells by using the aluminum alloy material comprises the following steps that 1) the components of the aluminum alloy material are mixed evenly according to the mass percent; 2) the mixed metal raw materials are smelted into a liquid state in a smelting furnace; 3)the aluminum alloy is formed by the liquid state material in a spraying forming mode; 4) a plate is formed by the spraying formed aluminum alloy through hot extrusion; and 5) the plate is machined into the shapes of shells of cell phones. The invention further discloses the electronic product shells manufactured through the aluminum alloy material and the manufacture method. According to the aluminum alloy material used for the electronic product shells and the manufacture method, the properties of impact resistance, bend resistance, high temperature resistance, scratch-prevention, etc., of metal shells of the cell phones, etc., are greatly improved.

Description

technical field [0001] The invention relates to an aluminum alloy material used for an electronic product casing and a manufacturing method thereof. Background technique [0002] It is a trend in the 3C industry to use metal aluminum and stainless steel as frame materials for mobile phones and smart wearable devices. At present, there is no better material that can replace metal for mobile phone frames. However, metal materials such as traditional aluminum and stainless steel have poor wear resistance, and are easy to be scratched and thermally deformed. [0003] At present, the frame material of smartphones is mainly made of 6-series aluminum alloy, which has low strength and hardness, poor drop resistance, and is prone to defects such as scratches, wear marks, pits, and cracks, and is easy to soften and deform at high temperatures. The traditional mobile phone frame processing method is to combine metal and plastic with CNC processing, in-mold injection molding and other ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/02C22C1/02C22F1/043
Inventor 钟孝贤彭毅萍谭海波张宁
Owner DONGGUAN HUAJING POWDER METALLURGY