Complex of aluminum or aluminum alloy and plastic, and preparation method thereof
A production method and technology of aluminum alloy, applied in chemical instruments and methods, electrolytic coatings, metal layered products, etc., can solve the problems of aging and fracture of adhesives, influence of operator proficiency, insufficient bonding strength, etc., and achieve enhanced bonding force. Effect
Inactive Publication Date: 2016-07-06
FU TAI HUA IND SHENZHEN +1
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Problems solved by technology
[0003] Although the bonding method can realize the connection between aluminum or aluminum alloy and plastic parts, it has the following disadvantages: the bonding strength is not high enough, and its bonding force is generally only up to 0.5MPa; it is difficult to automate and is affected by the proficiency of the operator; The working temperature is affected by the performance of the adhesive, and generally it can only work normally within the temperature range of -50-100°C; under ambient light, heat, humidity and other factors, the adhesive will cause aging and fracture; most adhesives are toxic, and the operation process It emits irritating gas, which is harmful to human health
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Embodiment Construction
[0020] see figure 1 A composite 100 of aluminum or aluminum alloy and plastic in a preferred embodiment of the present invention includes an aluminum or aluminum alloy substrate 11, an oxide film 13 formed on the surface of the aluminum or aluminum alloy substrate 11, and at least A plastic part 15 .
[0021] see figure 2 The shown cross-sectional scanning electron micrograph of the aluminum or aluminum alloy substrate 11 loaded with the oxide film 13 (note: located at figure 2 The middle and thinner layer is the oxide film 13, the substance above the oxide film 13 is the resin for fixing the test object during the test, and the layer below the oxide film 13 is the aluminum or aluminum alloy substrate 11). Such as figure 2 As shown, the thickness of the oxide film 13 is relatively thin. In this case, the thickness of the oxide film 13 is less than 1 μm, preferably about 500 nm.
[0022] see image 3 A plurality of nanopores 131 are formed on the oxide film 13 (nanopor...
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Abstract
The invention provides a complex of aluminum or aluminum alloy and plastic. The complex comprises an aluminum or aluminum alloy substrate, an oxide film formed on the surface of the aluminum or aluminum alloy substrate, and plastic parts bound on the surface of the oxide film through injection molding. A plurality of nanopores are formed on the oxide film. A plurality of corrosion holes are formed on the surface of the aluminum or aluminum alloy substrate. A part of the nanopores in the oxide film penetrate the oxide film and communicate with a part of the corrosion holes in the aluminum or aluminum alloy substrate. The oxide film and the corrosion holes are formed with electrochemical treatment methods. In the complex of aluminum or aluminum alloy and plastic, the binding force between the aluminum or aluminum alloy substrate and the plastic parts is high. The invention also provided a preparation method of the complex.
Description
technical field [0001] The invention relates to a composite body of aluminum or aluminum alloy and plastic and a manufacturing method thereof. Background technique [0002] As the shell or components of 3C products, aluminum or aluminum alloy can be connected with other materials by welding, mechanical connection and bonding. Among them, welding is the most important connection method for aluminum or aluminum alloy. But when aluminum or aluminum alloy is connected with plastic parts, it is necessary to use the bonding method. The bonding method refers to a method of combining aluminum or aluminum alloy with plastic parts by using adhesive as an intermediate interface material. [0003] Although the bonding method can realize the connection between aluminum or aluminum alloy and plastic parts, it has the following disadvantages: the bonding strength is not high enough, and its bonding force is generally only up to 0.5MPa; it is difficult to automate and is affected by the p...
Claims
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IPC IPC(8): B32B15/04B32B9/04B32B3/24B32B27/00C25F3/04B29C45/14
CPCC25D11/04C25D11/08C25D11/10C25D11/24C25F3/04B29C37/0085B29C2045/14327B29C2045/14803B29C2045/14868C23F1/36C25D11/16C25D11/246B29C45/00
Inventor 张新倍陈文荣蒋焕梧陈正士吴柏川孙代育冯源源
Owner FU TAI HUA IND SHENZHEN