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Aluminum alloy for battery case of cell phones and preparing method thereof

A mobile phone battery and aluminum alloy technology, which is applied in the field of aluminum alloy, can solve the problems of rough orange peel, affect the appearance of the product, increase the expansion, etc., achieve the effect of fine modification, convenient implementation, and improve the effect of alloy structure

Active Publication Date: 2013-12-11
河南誉金技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When 3003 aluminum alloy is prepared into a battery case, it needs to go through stamping processing and other procedures, the steps are complicated and the process is cumbersome
When the ordinary 3003 alloy is made into a thin wall, it will cause problems such as easy deformation, reduced pressure resistance, and increased expansion. At the same time, the surface of the material is prone to rough orange peel phenomenon during processing, which affects the appearance of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: To prepare a compound containing Mn: 1.0%, Fe: 0.7%, Si: 0.6%, Cu: 0.05%, Zn: 0.1%, Ti: 0.006%, C: 0.0004%, RE: 0.002%, and the rest is Al aluminum alloy as an example.

[0025] In the first step, the crucible is heated to 600°C, and 3003 aluminum alloy is added. The 3003 aluminum alloy is first pretreated to remove oil, water and surface oxide inclusions, etc., and preheat at 200°C for 30 minutes;

[0026] The second step is to preheat the Al-Ti-C-RE master alloy at 200°C for 20 minutes;

[0027] The third step is to increase the temperature of the crucible to 750°C. After the 3003 aluminum alloy in the crucible is completely melted, add Al-Ti-C-RE intermediate alloy accounting for 0.2% of the total weight of the 3003 aluminum alloy, and keep it at 750°C for 5 minutes , stir evenly;

[0028] The fourth step is to lower the temperature of the crucible to 715°C and let it stand for 5 minutes;

[0029] The fifth step is to refine the melt with argon gas, and...

Embodiment 2

[0034] Example 2: To prepare a compound containing Mn: 1.5%, Fe: 0.7%, Si: 0.6%, Cu: 0.20%, Zn: 0.1%, Ti: 0.012%, C: 0.0008%, RE: 0.004%, and the rest is Al aluminum alloy as an example.

[0035] In the first step, the crucible is heated to 600°C, and 3003 aluminum alloy is added. The 3003 aluminum alloy must first remove oil, water and surface oxide inclusions, etc., and preheat at 200°C for 30 minutes;

[0036] The second step is to preheat the Al-Ti-C-RE master alloy at 200°C for 20 minutes;

[0037] The third step is to raise the temperature of the crucible to 750°C. After the 3003 aluminum alloy in the crucible is completely melted, add Al-Ti-C-RE intermediate alloy accounting for 0.4% of the total weight of the 3003 aluminum alloy, and keep it at 750°C for 5 minutes , stir evenly;

[0038] The fourth step is to lower the temperature of the crucible to 715°C and let it stand for 5 minutes;

[0039] The fifth step is to refine the melt with argon gas, and the aeration tim...

Embodiment 3

[0043] Example 3: To prepare an aluminum alloy containing Mn: 1.0%, Fe: 0.7%, Si: 0.6%, Cu: 0.08%, Zn: 0.1%, Ti: 0.015%, C: 0.001%, RE: 0.005%. example.

[0044] In the first step, the crucible is heated to 600°C, and 3003 aluminum alloy is added after cleaning (ie degreasing, dewatering and surface oxide inclusions, etc.) and preheated;

[0045] In the second step, the Al-Ti-C-RE master alloy is preheated at 200°C for 25 minutes;

[0046] The third step is to increase the temperature of the crucible to 750°C. After the 3003 aluminum alloy in the crucible is completely melted, add Al-Ti-C-RE intermediate alloy accounting for 0.5% of the total weight of the 3003 aluminum alloy, and keep it at 750°C for 3 minutes. , stir evenly;

[0047] The fourth step is to lower the temperature of the crucible to 715°C and let it stand for 10 minutes;

[0048] The fifth step is to refine the melt with argon gas, the aeration time is about 2.5min, let it stand for 5min after aeration, then ...

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Abstract

The invention discloses aluminum alloy for battery cases of cell phones and preparing method of the aluminum alloy. The aluminum alloy contains the following ingredients in percentage by weight: 1.0-1.5% of Mn, 0.7% of Fe, 0.6% of Si, 0.05-0.20% of Cu, 0.1% of Zn, 0.06-0.03% of Ti, 0.0004-0.002% of C, 0.002-0.01% of RE, and the balance of Al. The aluminum alloy for the battery cases of the cell phones has extension resistance being up to 134.5Mpa at most and elongation being up to 28.7% at most, and is excellent in tenacity and strong in stamping resistance.

Description

technical field [0001] The invention relates to an aluminum alloy, in particular to an aluminum alloy for a mobile phone battery shell and a preparation method thereof. Background technique [0002] Aluminum alloy not only has the characteristics of light weight, high strength and good ductility, but also has excellent properties such as strong corrosion resistance and easy processing and forming. Therefore, aluminum alloys have been widely used in the fields of aerospace, automobiles, ships, and electronic products, and have become an important basic material for the development of the national economy and the improvement of people's material and cultural life. It plays an important role in the rapid and sustainable economic development. Especially in today's world, the survival and development of human beings are facing severe challenges of resources, energy, environment, safety and other issues. Therefore, it is of great strategic significance to accelerate the developme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/03H04M1/02
Inventor 王鹏赵红亮岳金胜
Owner 河南誉金技术服务有限公司
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