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Aluminum alloy for anodic oxidation and preparation method thereof

An anodizing and aluminum alloy technology, applied in the field of aluminum alloy, can solve the problems of poor anodizing effect, low hardness of aluminum alloy, heavy twill on the surface of aluminum alloy, etc., and achieve the effects of easy to master, simple preparation method, high strength and uniformity

Active Publication Date: 2020-07-28
广西南南铝加工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an aluminum alloy for anodic oxidation, so as to overcome the shortcomings of low hardness of aluminum alloy, poor anodic oxidation effect, and heavy twill on the surface of aluminum alloy

Method used

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  • Aluminum alloy for anodic oxidation and preparation method thereof
  • Aluminum alloy for anodic oxidation and preparation method thereof
  • Aluminum alloy for anodic oxidation and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0029] An aluminum alloy for anodic oxidation, mainly made of the following raw materials by weight percentage: Si: 0.7%, Fe: 0.07%, Cu: 0.3%, Mn: 0.08%, Mg: 1.1%, Cr: 0.02%, Zn: 0.04%, Ti: 0.03%, the balance being Al, Mg / Si=1.57.

[0030] A method for preparing aluminum alloy for anodic oxidation, comprising the following steps:

[0031] (1) Melting: Mix various raw materials according to weight percentage, heat to 740° C. to melt the mixed material, and keep warm for 3 hours.

[0032] (2) Degassing and filtering: degassing the molten aluminum, and then using a filter device to remove insoluble impurities in the aluminum melt. The hydrogen content in the aluminum melt is 0.05ml / 100gAl.

[0033] (3) Casting: pour the degassed and filtered aluminum liquid, cool it to obtain an ingot, and cast a flat ingot with a size of 520mm×1620mm×7000mm.

[0034] (4) Homogenization heat treatment: The ingot is subjected to homogenization treatment, the soaking temperature is 540° C., and t...

Embodiment 2

[0046] An aluminum alloy for anodic oxidation, mainly made of the following raw materials by weight percentage: Si: 0.9%, Fe: 0.1%, Cu: 0.6%, Mn: 0.15%, Mg: 1.4%, Cr: 0.03%, Zn: 0.1%, Ti: 0.1%, the balance being Al, Mg / Si=1.56.

[0047] A method for preparing aluminum alloy for anodic oxidation, comprising the following steps:

[0048] (1) Melting: Mix various raw materials according to weight percentage, heat to 750° C. to melt the mixed material, and keep warm for 5 hours.

[0049] (2) Degassing and filtering: degassing the molten aluminum, and then using a filter device to remove insoluble impurities in the aluminum melt. The hydrogen content in the aluminum melt is 0.08ml / 100gAl.

[0050] (3) Casting: pour the degassed and filtered aluminum liquid, cool it to obtain an ingot, and cast a flat ingot with a size of 520mm×1620mm×6500mm.

[0051] (4) Homogenization heat treatment: The ingot is subjected to homogenization treatment, the soaking temperature is 560° C., and the ...

Embodiment 3

[0064] An aluminum alloy for anodic oxidation, mainly made of the following raw materials by weight percentage: Si: 0.6%, Fe: 0.05%, Cu: 0.1%, Mn: 0.05%, Mg: 1.0%, Cr: 0.01%, Zn: 0.01%, Ti: 0.01%, the balance being Al, Mg / Si=1.67.

[0065] A method for preparing aluminum alloy for anodic oxidation, comprising the following steps:

[0066] (1) Melting: Mix various raw materials according to weight percentage, heat to 760° C. to melt the mixed material, and keep the temperature for 8 hours.

[0067] (2) Degassing and filtering: degassing the molten aluminum, and then using a filter device to remove insoluble impurities in the aluminum melt. The hydrogen content in the aluminum melt is 0.12ml / 100gAl.

[0068] (3) Casting: pour the degassed and filtered aluminum liquid, cool it to obtain an ingot, and cast a flat ingot with a size of 520mm×1620mm×7000mm.

[0069] (4) Homogenization heat treatment: The ingot is subjected to homogenization treatment, the soaking temperature is 580...

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Abstract

The invention discloses an anodic oxidation aluminum alloy. The anodic oxidation aluminum alloy mainly comprises, by weight, 0.6-1.2% of Si, 0-0.2% of Fe, 0.1-0.6% of Cu, 0-0.15% of Mn, 1.0-1.4% of Mg, 0-0.03% of Cr, 0-0.1% of Zn, 0-0.1% of Ti, and the balance Al. According to the anodic oxidation aluminum alloy, an improvement is made on the chemical components of the aluminum alloy; a manufactured and prepared aluminum alloy plate strip has the yield strength of more than 330 MPa, the tensile strength of more than 370 MPa and the Vickers hardness of more 130 HV; grain refinement is achieved,and the grain size is less than 80 microns; the high strength and high uniformity are achieved; the roughness of a plate is controlled within Ra 0.1-0.3 microns. The alloy has excellent anodic oxidation effect and high strength and hardness, has high lustrous surface and can be extensively applied to high-end anodic oxidation products, especially the field of 3C electronic product shells such asmobile phones, tablet computers, notebook computers, all-in-on PCs, routers and game machines. Moreover, the preparation method is simple, easy to grasp and convenient to implement.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to an aluminum alloy for anodic oxidation and a preparation method thereof. Background technique [0002] In recent years, the electronic product market has developed rapidly, and the replacement is getting faster and faster. In addition to the technological innovation of the product, due to the substantial reduction in the cost of metal materials, the product is also more portable, environmentally friendly, practical and beautiful. Judging from the current development trend of consumer electronics, the primary way of appearance innovation is the thinning and thinning of electronic product casings. Among them, aluminum alloy materials are widely used in consumer electronic products due to their unique advantages. [0003] Aluminum alloy has the characteristics of high surface, light weight, high strength, and good heat dissipation. With the continuous enrichment of aluminum alloy mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/08C22C1/02C22F1/047C22F1/05
CPCC22C1/026C22C21/08C22F1/047C22F1/05
Inventor 曹宇邓松云莫灼强柳华炎莫肇月姜文平刘莹韦克剑蒋长标刘镇宽朱玉涛任月路肖刚
Owner 广西南南铝加工有限公司
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