CN218262757U - Aluminum alloy PVD structure, aluminum alloy decoration and electronic equipment - Google Patents

Abstract

The utility model discloses an aluminum alloy PVD structure, including aluminum alloy substrate, aluminum alloy substrate's surface is equipped with galvanizing coat, copper plate, nickel coating, chromium coating and PVD cladding material in proper order. The utility model discloses still disclose the aluminum alloy decoration and including the electronic equipment of this aluminum alloy decoration of above-mentioned aluminum alloy PVD structure. Compared with the prior art, the beneficial effects lie in that: by sequentially laminating the zinc coating, the copper coating, the nickel coating and the chromium coating on the surface of the aluminum alloy base material, the surface hardness of the gold base material can be improved layer by layer and the degree of PVD coating can be achieved, so that the aim of forming a PVD coating on the surface of the aluminum alloy is fulfilled.

Description

Aluminum alloy PVD structure, aluminum alloy decoration and electronic equipment

[ technical field ] A method for producing a semiconductor device

The utility model relates to a surface treatment technical field, specificly relate to an aluminum alloy PVD structure, aluminum alloy decoration and electronic equipment.

[ background of the invention ]

The battery cover is a mobile phone appearance accessory arranged on the back of the mobile phone and mainly plays a role in protection, decoration and the like, so that an aluminum alloy decoration is arranged on the battery cover to improve the appearance. At present, with the development of flexible screens and folding technologies, folding mobile phones are in the future trend, the folding mobile phones are provided with a rotating shaft for folding, the surface of the rotating shaft is usually stainless steel or liquid metal and subjected to PVD (physical vapor deposition, which means a technology of evaporating a material into gaseous atoms, molecules or parts of the gaseous atoms and ions by a physical method under a vacuum condition and depositing a film with a certain special function on the surface of a substrate by low-pressure gas), however, an aluminum alloy decoration on a battery cover is subjected to anode treatment due to the fact that the surface hardness of the aluminum alloy decoration is not matched with that of a PVD coating 60, so that the surface of the aluminum alloy decoration and the surface of the rotating shaft are prone to color difference, and the quality of the mobile phone is affected.

In view of the above, it is desirable to provide an aluminum alloy PVD structure, an aluminum alloy decoration and an electronic device to overcome the disadvantages of the prior art.

[ Utility model ] content

The utility model aims at providing an aluminum alloy PVD structure aims at improving the pleasing to the eye degree of composite sheet.

In order to realize the above object, the utility model discloses the first aspect provides an aluminum alloy PVD structure, including aluminum alloy substrate, aluminum alloy substrate's surface is equipped with galvanizing coat, copper-plated layer, nickel-plated layer, chromium-plated layer and PVD cladding material in proper order.

As an improvement of the aluminum alloy PVD structure of the utility model, the thickness of the galvanizing coat is not more than 1um.

As an improvement of the aluminum alloy PVD structure, the thickness of the copper plating layer is 8-12 um.

As an improvement of the aluminum alloy PVD structure of the utility model, the thickness of the nickel plating layer is 3-5 um.

As an improvement of the aluminum alloy PVD structure of the utility model, the thickness of the chromium coating is not more than 1um.

As an improvement of the aluminum alloy PVD structure of the utility model, the thickness of the PVD coating is 8-12 um.

The utility model discloses the second aspect provides an aluminum alloy decoration, including above-mentioned aluminum alloy PVD structure.

The utility model discloses the third aspect provides an electronic equipment, including above-mentioned aluminum alloy decoration.

Compared with the prior art, the utility model discloses aluminum alloy PVD structure's beneficial effect lies in: by sequentially laminating the zinc coating, the copper coating, the nickel coating and the chromium coating on the surface of the aluminum alloy base material, the surface hardness of the gold base material can be improved layer by layer and the degree of PVD coating can be achieved, so that the aim of forming a PVD coating on the surface of the aluminum alloy is fulfilled.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

FIG. 1 is a sectional view of the aluminum alloy PVD structure provided by the invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

Referring to fig. 1, a first aspect of the present invention provides an aluminum alloy PVD structure 100.

The embodiment of the present invention provides an aluminum alloy PVD structure 100 comprising an aluminum alloy substrate 10, wherein the surface of the aluminum alloy substrate 10 is sequentially provided with a zinc coating 20, a copper coating 30, a nickel coating 40, a chromium coating 50 and a PVD coating 60.

It can be understood that the surface of the aluminum alloy base material 10 can be hardened layer by layer through the zinc coating layer 20, the copper coating layer 30, the nickel coating layer 40 and the chromium coating layer 50, and finally the surface hardness of the aluminum alloy base material 10 can reach the degree that the PVD coating can be performed.

Wherein, the thickness of galvanizing coat 20 is no more than 1um, and the purpose of galvanizing coat 20 is to improve the surface adhesion of aluminum alloy substrate 10 to the convenient range upon range of copper plating layer 30, nickel plating layer 40 and chromium plating layer 50, and galvanizing coat 20 can also improve the acid and alkali resistance of aluminum alloy substrate 10, causes the corruption to aluminum alloy substrate 10 when preventing to process copper plating layer 30, nickel plating layer 40 and chromium plating layer 50, and here, galvanizing coat 20 can form through the mode of chemical galvanization.

The thickness of the copper plating layer 30 is 8-12 um, the purpose of the copper plating layer 30 is to cover up the bad defects on the surface of the aluminum alloy base material 10, such as slight scratch, slight pit, etc., and the copper plating layer 30 can also increase the surface brightness, thereby increasing the aesthetic degree of the product.

The thickness of the nickel coating 40 is 3-5 um, and the purpose of the nickel coating 40 is to improve the wear resistance, rust resistance and corrosion resistance of the product.

The thickness of the chromium plating layer 50 is not more than 1um, the chromium plating layer 50 aims to improve the hardness and the attractiveness of the surface of a product, the chromium plating layer 50 has good chemical stability, does not act on alkali, sulfide, nitric acid and most of organic acid, can further improve the wear resistance, the rust resistance and the corrosion resistance of the product, and can keep the reflection capacity for a long time when the product is used, namely the chromium plating layer 50 can also improve the attractiveness of the product.

The thickness of the PVD coating 60 is 8-12 um.

Note that the copper plating layer 30, the nickel plating layer 40, and the chromium plating layer 50 are formed by electroplating.

Next, in order to facilitate understanding of the aluminum alloy PVD structure 100 provided by the present invention, the following process flow of the aluminum alloy PVD structure 100 is briefly described:

step S1, taking an aluminum alloy base material 10, and carrying out ultrasonic cleaning on the surface of the polished aluminum alloy base material 10 to remove grease on the surface of the aluminum alloy base material 10.

And S2, forming a zinc coating 20 on the surface of the aluminum alloy base material 10 by a chemical galvanizing method, wherein the chemical galvanizing time is 1 minute, and the thickness of the zinc coating 20 is not more than 1um.

And S3, forming the galvanized layer 20 on the galvanized layer 20 by a copper electroplating method, wherein the copper electroplating time is 10 minutes, the current is 80A, and the film thickness of the copper-plated layer 30 is 8-12 um.

And S4, forming a nickel plating layer 40 on the copper plating layer 30 by a nickel electroplating method, wherein the nickel electroplating time is 5 minutes, the current is 80A, and the film thickness of the nickel plating layer 40 is 3-5 um.

And S5, forming a chromium plating layer 50 on the nickel plating layer 40 by a chromium plating method, wherein the chromium plating time is 1 minute, the current is 200A, and the thickness of a film layer of the chromium plating layer 50 is not more than 1um.

And S6, hanging and drying the aluminum alloy base material 10 on which the zinc coating 20, the copper coating 30, the nickel coating 40 and the chromium coating 50 are formed, and then carrying out PVD coating to form a PVD coating 60 on the chromium coating 50, wherein the temperature of PVD is controlled to be 145-155 degrees, the time of PVD dark color expression is 3H, the time of PVD black color expression is 4H, and the film thickness of the PVD coating 60 is 8-12 um.

To sum up, the utility model provides an aluminum alloy PVD structure 100 stacks gradually galvanizing coat 20, copper plate 30, nickel coating 40 and chromium coating 50 through the surface at aluminum alloy substrate 10 for the hardness of surface of gold substrate can the successive layer improve and reach the degree that can carry out the PVD coating film, thereby reaches the purpose that forms PVD cladding material 60 on the surface at the aluminum alloy.

The utility model discloses the second aspect provides an aluminum alloy decoration, this aluminum alloy decoration adopt the aluminum alloy PVD structure 100 in above-mentioned arbitrary embodiment, can understand, and this aluminum alloy decoration adopts aluminum alloy PVD structure 100 back for the aluminum alloy decoration can be like liquid metal and stainless steel at surface covering PVD cladding material 60, thereby has improved aluminum alloy decoration's surperficial pleasing to the eye degree.

The third aspect of the present invention provides an electronic device, wherein the aluminum alloy decoration part in the above embodiment is covered on the battery cover of the electronic device, so that the surface of the aluminum alloy decoration part of the electronic device and the stainless steel of the rotating shaft or the liquid metal surface can both be covered with the PVD coating 60, thereby improving the aesthetic property of the electronic device and avoiding the occurrence of color difference between the aluminum alloy decoration part and the rotating shaft, and it should be understood that the electronic device includes but is not limited to a mobile phone, a tablet or other electronic products.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims (7)

1. An aluminum alloy PVD structure is characterized by comprising an aluminum alloy base material, wherein a zinc coating, a copper coating, a nickel coating, a chromium coating and a PVD coating are sequentially arranged on the surface of the aluminum alloy base material; the thickness of the copper plating layer is 8-12 um.

2. The aluminum alloy PVD structure of claim 1, wherein the galvanized layer has a thickness of no more than 1um.

3. The aluminum alloy PVD structure of claim 1, wherein the nickel plating layer has a thickness of 3 to 5um.

4. The aluminum alloy PVD structure of claim 1, wherein the chromium plating layer has a thickness of no more than 1um.

5. The aluminum alloy PVD structure of claim 1, wherein the PVD coating has a thickness of 8 to 12um.

6. An aluminum alloy decorative part comprising the aluminum alloy PVD structure of any of claims 1 to 5.

7. An electronic device, comprising the aluminum alloy garnish according to claim 6.

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