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A kind of aluminum alloy composite body and preparation method thereof

An aluminum alloy and composite technology, applied in the field of aluminum alloy composites and their preparation, can solve the problems of low tensile strength, unsafe and environmental protection, etc., and achieve high tensile strength, good safety performance, and good bonding force. Effect

Active Publication Date: 2015-09-30
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems that the aluminum alloy composite body in the prior art has low tensile strength and is unsafe and environmentally friendly

Method used

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Examples

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preparation example Construction

[0020] The invention provides a method for preparing an aluminum alloy composite, comprising the following steps:

[0021] Step 1, pre-treatment: pre-treating the aluminum alloy substrate;

[0022] The aluminum alloy substrates described in the present invention are aluminum alloy substrates of various shapes and structures commonly used by those skilled in the art, and the present invention is not particularly limited. Various shapes and structures of the aluminum alloy base material can be completed by machining.

[0023] In this step, the pretreatment is a pretreatment process commonly used by those skilled in the art on the surface of the aluminum alloy. For example, it may be: first use 100-400 mesh sandpaper or sandblasting equipment to polish the surface of the aluminum alloy substrate to produce For micron-sized pores, use various solvents commonly used by those skilled in the art to clean the aluminum alloy substrate in ultrasonic waves for 0.5-2 hours; then place th...

Embodiment 1

[0042] This Example 1 is used to illustrate the aluminum alloy composite provided by the present invention and its preparation method;

[0043] 1. Pretreatment: Clean the aluminum alloy substrate with a size of 100mm*25mm*1mm (length*width*height) with absolute ethanol, and then immerse the aluminum alloy substrate in 2wt% sodium hydroxide aqueous solution for 2min Finally, take it out and rinse it with deionized water to obtain a pretreated aluminum alloy sheet;

[0044] 2. Surface treatment: immerse the aluminum alloy substrate in an aqueous solution of 2wt% sodium carbonate and 3wt% sodium phosphate (PH=11), take it out after 1min and clean it with deionized water, and repeat the immersion process 30 times;

[0045] 3. Viscosity-increasing treatment: immerse the aluminum alloy substrate in an aqueous solution of methyl acrylate with a solid content of 45wt%, take it out after 2 minutes, put it in a drying oven, and dry it at 60°C for later use;

[0046] 4. Molding: insert ...

Embodiment 2

[0048] This Example 2 is used to illustrate the aluminum alloy composite provided by the present invention and its preparation method;

[0049] 1. Pretreatment: Clean the aluminum alloy substrate with a size of 100mm*25mm*1mm (length*width*height) with absolute ethanol, and then immerse the aluminum alloy substrate in 2wt% sodium hydroxide aqueous solution for 2min Finally, take it out and rinse it with deionized water to obtain a pretreated aluminum alloy sheet;

[0050] 2. Surface treatment: dip the aluminum alloy substrate into a mixed aqueous solution of 2wt% sodium carbonate and 1wt% sodium bicarbonate (PH=10), take it out after 2 minutes and clean it with deionized water, and repeat the dipping process 40 times;

[0051] 3. Viscosity-increasing treatment: immerse the aluminum alloy substrate in an aqueous solution of ethyl acrylate with a solid content of 35wt%, take it out after 2 minutes, put it in a drying oven, and dry it at 60°C for later use;

[0052] 4. Molding: ...

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Abstract

The invention provides a preparation method of an aluminium alloy complex. The method comprises the following steps of: surface treatment: dipping the pretreated aluminium alloy base material into at least one water solution of soluble phosphate, carbonate, acetate and sulphite, and carrying out surface treatment; and molding: after the surface treatment, putting the aluminium alloy base material into a mould, then injecting a resin composition into the mould to be combined with the aluminium alloy base material, and molding to obtain the aluminium alloy complex. The invention also relates to the aluminium alloy complex. According to the method, the soluble phosphate, the carbonate and the acetate are used for treating the aluminium alloy base material, and nanoscale micropores can be obtained; the soluble phosphate, the carbonate and the acetate are free from toxicity and volatility, has no harm to the environment, and has good safety performance; and after the surface treatment, the aluminium alloy base material and a resin layer of the aluminium alloy complex have very good bonding force, so that the aluminium alloy complex is high in tensile strength.

Description

technical field [0001] The invention relates to a composite body of aluminum alloy and resin, more specifically, to an aluminum alloy composite body formed by integrating aluminum alloy and thermoplastic resin and a preparation method thereof. Background technique [0002] In the field of parts manufacturing of automobiles, household electrical appliances, industrial machines, etc., the integrated molding technology of metal and resin is required. At present, the industry uses adhesives to integrate metal and synthetic resin at room temperature or under heating. Although the above method can be used to prepare metal and plastic integrally formed composites, the composites obtained according to these methods cannot meet the application requirements that need to be recycled at high and low temperatures and have good sealing performance. Therefore, people have been studying whether there is a more reasonable way to integrate high-strength engineering resins with alloys such as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/08B32B15/20B32B37/15
Inventor 张宜虎
Owner BYD CO LTD
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