Aluminum magnesium alloy and surface modifying method thereof

A technology of aluminum-magnesium alloy and surface modification, which is applied to the surface coating liquid device, metal material coating process, ion implantation plating, etc., which can solve the problem of high energy consumption, large pollution, immature technology and ineffective effect. Improve the corrosion resistance, improve the hydrophobic performance, and improve the effect of electromagnetic shielding

Active Publication Date: 2016-07-06
贵州航天风华精密设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the commonly used surface modification technologies for aluminum-magnesium alloys mainly include: chemical conversion coating treatment, metal coating treatment and ion implantation, etc., but because magnesium is an active metal, only the effect of chemical conversion coating treatment is not good; Metal coating treatment mainly uses electroplating, electroless plating or thermal spraying to wrap metal coatings such as Zn and Cr on the surface. If only this method is used, the energy consumption and pollution caused are relatively large; ion implantation and laser treatment technology It is a hot topic in recent years, but its technology is not yet mature, and the cost is relatively high

Method used

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  • Aluminum magnesium alloy and surface modifying method thereof
  • Aluminum magnesium alloy and surface modifying method thereof
  • Aluminum magnesium alloy and surface modifying method thereof

Examples

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Effect test

Embodiment 1

[0033] An aluminum-magnesium alloy is composed of the following raw materials in weight percentage: 0.01% of manganese, 0.12% of titanium, 0.3% of chromium, 6% of magnesium, 0.25% of iron, 0.07% of rare earth metal, and the balance is aluminum.

[0034] The rare earth metal is composed of the following components in mass ratio: Y:Ce:La:Sc=1:2:2:1.

[0035] Material preparation:

[0036] The silicon-based coating is composed of the following components in a mass ratio of ethyl orthosilicate:methyltrimethoxysilane:methyltriethoxysilane=3:1:5.

[0037] The preparation method of the silicon-based coating is as follows: add an ethanol solution with a quality of 1.5% orthosilicate into the orthosilicate and stir for 5 minutes, the volume concentration of the ethanol solution is 60%, and then add orthosilicate 13% tartaric acid, after stirring for 8 minutes, add methyltrimethoxysilane and methyltriethoxysilane in sequence, and heat at 68° C. for 1 hour to obtain a silicon-based coat...

Embodiment 2

[0046] An aluminum-magnesium alloy is composed of the following raw materials in weight percentage: 0.15% manganese, 0.2% titanium, 0.42% chromium, 8% magnesium, 0.1% iron, 0.1% rare earth metal, and the balance is aluminum.

[0047] The rare earth metal is composed of the following components in mass ratio: Y:Ce:La:Sc=2:1:3:1.

[0048] Material preparation:

[0049] The silicon-based coating is composed of the following components in a mass ratio of ethyl orthosilicate:methyltrimethoxysilane:methyltriethoxysilane=3:2:4.

[0050]The preparation method of the silicon-based coating is as follows: add an ethanol solution with a quality of 1.7% tetraethyl orthosilicate into the tetraethyl orthosilicate and stir for 4 minutes, the volume concentration of the ethanol solution is 70%, and then add the tetraethyl orthosilicate 10% tartaric acid, stirred for 10 minutes, then added methyltrimethoxysilane and methyltriethoxysilane in sequence, and heated at 65° C. for 1.5 hours to obtai...

Embodiment 3

[0059] An aluminum-magnesium alloy is composed of the following raw materials in weight percentage: 0.30% manganese, 0.15% titanium, 0.38% chromium, 7% magnesium, 0.2% iron, 0.12% rare earth metal, and the balance is aluminum.

[0060] The rare earth metal is composed of the following components in mass ratio: Y:Ce:La:Sc=1:1:5:1.

[0061] Material preparation:

[0062] The silicon-based coating is composed of the following components in a mass ratio of ethyl orthosilicate:methyltrimethoxysilane:methyltriethoxysilane=3:3:2.

[0063] The preparation method of the silicon-based coating is as follows: add an ethanol solution with a quality of 1.4 ethyl orthosilicate into the ethyl orthosilicate and stir for 2 minutes, the volume concentration of the ethanol solution is 55%, and then add the ethyl orthosilicate 11% tartaric acid, after stirring for 5 minutes, add methyltrimethoxysilane and methyltriethoxysilane in sequence, and heat at 60° C. for 2 hours to obtain a silicon-based ...

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Abstract

The invention relates to the technical field of metal alloy, in particular to an aluminum magnesium alloy and a surface modifying method thereof. The aluminum magnesium alloy is prepared from aluminum, manganese, titanium, chromium, magnesium, iron and rare earth metals. The surface modifying method of the aluminum magnesium alloy comprises the steps that the aluminum magnesium alloy is polished and cleaned with acetone till the surface is clean; an electric arc spraying method is adopted to form a silicon substrate coating and a chromium-aluminum coating on a base body; a magnetron sputtering coating method is adopted to form a titanium metal layer, the electric arc spraying method is adopted to form an inorganic silicon layer, and finally the alloy is coated with a protective layer. The aluminum magnesium alloy obtained by adopting the surface modifying method has the good anti-explosion and electromagnetic shielding effects, and also has the advantages of being resistant to corrosion and high temperature and high in comprehensive chemical property.

Description

technical field [0001] The invention relates to the technical field of metal alloys, in particular to an aluminum-magnesium alloy and a surface modification method thereof. Background technique [0002] Aluminum-magnesium alloy is an alloy in which magnesium metal is added to aluminum alloy. It has a series of advantages such as high strength and rigidity, light weight, easy processing, and easy recycling. It is widely used in aerospace, transportation, petroleum, etc. Chemical industry, rail transit, consumer electronics and other fields, despite this, my country's aluminum-magnesium alloy products are still difficult to meet the manufacturing of high-end equipment, and most of the parts of my country's high-end equipment are imported from abroad, and these imported parts are The aluminum-magnesium alloy products exported from my country at a low price are used as primary raw materials, and processed by high-end technology to produce high value-added products. Therefore, rese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/06C23C4/131C23C4/04C23C4/06C23C4/10C23C14/35C23C14/16C23C28/00B05D7/14B05D1/04B05D1/06B05D1/28
CPCB05D1/04B05D1/06B05D1/28B05D7/14B05D7/58B05D2202/00B05D2504/00C22C21/06C23C4/04C23C4/06C23C4/10C23C14/16C23C14/35C23C28/00B05D2425/01
Inventor 李翔光于丹敖四海王昌明俞开升
Owner 贵州航天风华精密设备有限公司
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