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High-hardness electromagnetic shielding aluminum alloy

An electromagnetic shielding and aluminum alloy technology, applied in the fields of magnetic field/electric field shielding, electrical components, metal material coating technology, etc., can solve the problems of poor hardness and electromagnetic shielding, and achieve the goal of ensuring toughness, improving performance, and improving alloy hardness Effect

Inactive Publication Date: 2020-07-17
江苏竣昌科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the problems of poor hardness and electromagnetic shielding in the prior art, the present invention provides an aluminum alloy with high hardness and electromagnetic shielding

Method used

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  • High-hardness electromagnetic shielding aluminum alloy

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Please see figure 1 , is a flow diagram of a preferred embodiment of a high-hardness electromagnetic shielding aluminum alloy of the present invention, a high-hardness electromagnetic shielding aluminum alloy, and the preparation steps of the high-hardness electromagnetic shielding aluminum alloy are as follows:

[0028] Step 1: add the silicon phase and remelt, first prepare the Al-xCu-yMg-zZn alloy melt, and then mix the Al-xCu-yMg-zZn alloy melt with the Al-12.6Si master alloy evenly at the melting temperature, After mixing, it is poured into a metal mold at room temperature to prepare Mg-11Al-1.0Cu-0.05Zn-mSi aluminum alloy;

[0029] Step 2, homogenizing annealing, performing homo...

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Abstract

The invention provides a high-hardness electromagnetic shielding aluminum alloy. The high-hardness electromagnetic shielding aluminum alloy is prepared by using the following steps of adding a siliconphase for re-smelting, carrying out homogenizing annealing, carrying out cleaning and polishing, carrying out soaking, carrying out magnetron sputtering coating, carrying out nickel plating and carrying out cleaning and storing. According to the high-hardness electromagnetic shielding aluminum alloy, solid Al-12.6Si eutectic aluminum silicon is added into the prepared Al-xCu-yMg-zZn alloy melt, and a fine silicon phase is added, so that the hardness is improved; re-smelting and homogenizing annealing are performed, so that the aluminum alloy is uniform in component, and the hardness is improved; then soaking in modified vegetable oil is performed, and then a silicon nitride layer is plated through magnetron sputtering, so that the electromagnetic shielding property of the aluminum alloy is improved; and finally, a nickel layer is electroplated on the aluminum alloy, so that the aluminum alloy is comprehensively protected.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy preparation, in particular to an aluminum alloy with high hardness and electromagnetic shielding. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. For aluminum alloy as a metal structure material, metal corrosion is a common problem that must be faced. The oxide film produced by surface treatment of aluminum and its alloys has decorative effects, protective properties and special functions, which can improve the electrical conductivity, heat conduction, wear resistance, corrosion resistance and optical properties of aluminum and its alloys. Therefore, researchers at home and abroad use various methods to surface treat it to improve its comprehensive performance, and have made great progress. At prese...

Claims

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Application Information

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IPC IPC(8): C22C1/03C22C21/18C22F1/057C23C14/35C23C14/06C25D3/12B05D3/00B05D1/18B05D7/24B05D7/14H05K9/00
CPCB05D1/18B05D3/002B05D3/007B05D7/14B05D7/24C22C1/026C22C1/03C22C21/14C22C21/16C22C21/18C22F1/057C23C14/0652C23C14/35C25D3/12H05K9/0081
Inventor 邓荣辉刘绍刚倪涛李勇
Owner 江苏竣昌科技有限公司
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