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Aluminum alloy matrix composite material, preparation method and application

A composite material and aluminum alloy-based technology, which is applied in the field of aluminum alloy materials, can solve problems such as easy oxidation of copper coating, insufficient bonding force, and inability to meet the requirements of high-current conductive parts, and achieve considerable economic benefits and low oxidation rate. , significant social benefits

Inactive Publication Date: 2016-09-28
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the bonding force between the copper coating and the aluminum alloy substrate is not enough, and the copper coating is prone to oxidation during the preparation process, which cannot meet the requirements for the use of high-current conductive parts.

Method used

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  • Aluminum alloy matrix composite material, preparation method and application
  • Aluminum alloy matrix composite material, preparation method and application

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Embodiment 1

[0035] The aluminum alloy-based composite material in this embodiment includes an aluminum alloy matrix, and the surface of the aluminum alloy matrix is ​​sequentially attached with a bonding layer and a functional layer from the inside to the outside, and the bonding layer is made of aluminum-coated nickel composite powder The aluminum-nickel alloy layer, the functional layer is a copper coating. Wherein, the bonding layer is made by plasma spraying aluminum-coated nickel composite powder on the surface of the aluminum alloy substrate; the functional layer is made by plasma spraying pure copper powder on the bonding layer of the aluminum alloy substrate. The thickness of the adhesive layer was 50 μm, and the thickness of the functional layer was 50 μm.

[0036] The preparation method of the aluminum alloy matrix composite material of this embodiment includes the following steps:

[0037] 1) After the surface of the aluminum alloy substrate is purified by chemical degreasing,...

Embodiment 2

[0044] The aluminum alloy-based composite material in this embodiment includes an aluminum alloy matrix, and the surface of the aluminum alloy matrix is ​​sequentially attached with a bonding layer and a functional layer from the inside to the outside, and the bonding layer is made of aluminum-coated nickel composite powder The aluminum-nickel alloy layer, the functional layer is a copper coating. Wherein, the bonding layer is made by plasma spraying aluminum-coated nickel composite powder on the surface of the aluminum alloy substrate; the functional layer is made by plasma spraying pure copper powder on the bonding layer of the aluminum alloy substrate. The thickness of the adhesive layer was 50 μm, and the thickness of the functional layer was 100 μm.

[0045] The preparation method of the aluminum alloy matrix composite material of this embodiment includes the following steps:

[0046] 1) After the surface of the aluminum alloy substrate is purified by chemical degreasing...

Embodiment 3

[0051] The aluminum alloy-based composite material in this embodiment includes an aluminum alloy matrix, and the surface of the aluminum alloy matrix is ​​sequentially attached with a bonding layer and a functional layer from the inside to the outside, and the bonding layer is made of aluminum-coated nickel composite powder The aluminum-nickel alloy layer, the functional layer is a copper coating. Wherein, the bonding layer is made by plasma spraying aluminum-coated nickel composite powder on the surface of the aluminum alloy substrate; the functional layer is made by plasma spraying pure copper powder on the bonding layer of the aluminum alloy substrate. The adhesive layer had a thickness of 100 μm, and the functional layer had a thickness of 150 μm.

[0052] The preparation method of the aluminum alloy matrix composite material of this embodiment includes the following steps:

[0053] 1) After the surface of the aluminum alloy substrate is purified by chemical degreasing, t...

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Abstract

The invention discloses an aluminum alloy matrix composite material, a preparation method and application. The aluminum alloy matrix composite material comprises an aluminum alloy matrix; the surface of the aluminum alloy matrix is sequentially coated with a bonding layer and a functional layer from inside to outside; the bonding layer is an aluminum nickel alloy layer made from aluminum-coated nickel composite powder; and the functional layer is a copper coating. According to the aluminum alloy matrix composite material, the surface of the aluminum alloy matrix is sequentially coated with the bonding layer and the functional layer from inside to outside, modification of the surface of the aluminum alloy matrix is achieved, the bonding layer is made from the aluminum-coated nickel composite powder, has good wettability and can be well bonded with the aluminum alloy matrix and the copper coating, the bonding strength between the copper coating and the aluminum alloy matrix is greatly improved, and good bonding performance of the copper coating and the aluminum alloy matrix is guaranteed; and the functional layer is the elementary copper coating, the using performance of the material is guaranteed, the conductivity of the material is improved, and the aluminum alloy matrix composite material is applicable to conducting of high-current conductor parts.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy materials, specifically relates to an aluminum alloy matrix composite material, and also relates to a preparation method of the aluminum alloy matrix composite material and its application in the preparation of conductive parts. Background technique [0002] Aluminum alloys have been widely used in aviation, automobiles and other fields due to their advantages such as low density and good thermal conductivity, but their disadvantages such as poor wear resistance and low melting point also limit their further development. In the prior art, a copper alloy layer is attached to the surface of an aluminum alloy component, which is used as a heat-resistant coating or a wear-resistant coating. For example, Wang Weifu disclosed in the article "Research on Laser Cladding of Copper-based Alloy Coatings on Aluminum Alloy Surfaces" (Laser Technology, 2008): In order to improve the surface strength of a...

Claims

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Application Information

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IPC IPC(8): C23C4/134C23C4/08C23C4/02
CPCC23C4/02C23C4/08
Inventor 李宝增张楠楠林生军袁端鹏张柳丽李继承罗军张颖杰
Owner PINGGAO GRP
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