Shell surface processing method, shell and electronic equipment

Abstract

The present application discloses a shell surface processing method, a shell and an electronic device, belonging to the field of electronic device processing technology. The shell surface processing method includes: providing a glass substrate, the glass substrate having a first surface and a second surface; spraying a first coating on the first surface of the glass substrate, the first coating being a transparent UV glue; after pre-curing the first coating, spraying a second coating on the surface of the first coating, the second coating being a transparent UV glue, the thickness of the second coating being greater than the thickness of the second coating; after pre-curing the second coating, forming a texture on the surface of the second coating by a rubbing process; and fully curing the glass substrate coated with the first coating and the second coating to obtain a glass shell with a texture.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment processing, and specifically relates to a surface processing method of a shell, a shell and an electronic equipment. Background Art

[0002] In recent years, users have gradually increased their requirements for the appearance and texture of electronic devices. At present, more and more electronic equipment manufacturers are using anti-glare glass (AG) technology and texture effects on the outer shell of electronic equipment. The current conventional process is acid solution corrosion or mold hot bending texture, but this method usually has high process costs, pollutes the environment, and has great limitations in texture effects. Some electronic equipment manufacturers use direct writing with a photolithography machine to produce a "bright fog" contrast texture effect on the outer shell at one time. However, the processing method of the photolithography machine is dot matrix processing, and its processing method results in insufficient smoothness of the produced texture, which affects the texture of the final product.

[0003] Therefore, it is urgent to develop a new surface processing method for shells to solve the problems existing in the surface processing process of existing electronic equipment shells. Summary of the invention

[0004] The present application aims to provide a shell surface processing method, a shell and an electronic device, which at least solves the problems of high cost, environmental pollution and large limitations of texture effects in current electronic equipment texture processing technology.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a surface processing method for a shell, comprising:

[0007] Providing a glass substrate having a first surface and a second surface;

[0008] Spraying a first coating on the first surface of the glass substrate, wherein the first coating is a transparent UV glue;

[0009] After pre-curing the first coating, spraying a second coating on the surface of the first coating, wherein the second coating is a transparent UV glue and the thickness of the second coating is greater than the thickness of the first coating;

[0010] After pre-curing the second coating, a texture is formed on the surface of the second coating by a rubbing process;

[0011] The glass substrate coated with the first coating layer and the second coating layer is fully cured to obtain a glass shell with a texture.

[0012] In a second aspect, an embodiment of the present application provides a shell, which is manufactured by the shell processing method provided above.

[0013] In a third aspect, an embodiment of the present application provides an electronic device, which includes the housing provided above.

[0014] The surface processing method of the shell provided in the embodiment of the present application sprays a first coating on the first surface of the glass substrate, sprays a second coating on the surface of the first coating, and then forms a texture on the surface of the second coating by a rubbing process. According to different user needs, different textures can be rubbed on the surface of the second coating to obtain the corresponding texture effect, which greatly improves the problem of large limitations of the texture effect of the existing processing method. It greatly enhances the layering, change, and depth of the product, thereby significantly improving the appearance and user experience of the electronic device.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A flow chart of a method for processing a shell according to an embodiment of the present application is shown;

[0018] Figure 2 A schematic structural diagram of a textured diaphragm according to an embodiment of the present application is shown;

[0019] Figure 3 A schematic diagram showing a protective film attached to the second surface according to an embodiment of the present application is shown;

[0020] Figure 4 A schematic diagram showing forming a first coating on a first surface according to an embodiment of the present application is shown;

[0021] Figure 5 A schematic diagram showing a method of forming a second coating layer on a first coating layer according to an embodiment of the present application is shown;

[0022] Figure 6 A schematic diagram showing a method of attaching a membrane to a second coating layer according to an embodiment of the present application is shown;

[0023] Figure 7 A schematic diagram of a glass housing with the protective film removed according to an embodiment of the present application is shown.

[0024] Reference numerals:

[0025] 10. Glass substrate; 101. First coating layer; 102. Second coating layer; 103. First surface; 104. Second surface; 11. Sub-mold; 111. Diaphragm; 12. Glass shell; 13. Protective film. DETAILED DESCRIPTION

[0026] Embodiments of the present invention will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] The terms "first", "second", etc. in the specification of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0028] In an embodiment of the present application, a method for processing a shell is provided. Figure 1 Flow chart of the processing method of the shell of the embodiment of the present application. Figure 1 As shown, the processing method includes:

[0029] Step S101: providing a glass substrate, wherein the glass substrate has a first surface and a second surface.

[0030] Step S102: spraying a first coating layer on a first surface of the glass substrate, wherein the first coating layer is a transparent UV glue.

[0031] Step S103: After pre-curing the first coating layer, spray a second coating layer on the surface of the first coating layer, wherein the second coating layer is a transparent UV glue and the thickness of the second coating layer is greater than the thickness of the first coating layer.

[0032] Step S104: After pre-curing the second coating layer, a texture is formed on the surface of the second coating layer by a rubbing process.

[0033] Step S105: performing a full curing treatment on the glass substrate coated with the first coating layer and the second coating layer to obtain a glass shell with a texture.

[0034] Specifically, Figure 3As shown, a glass substrate 10 is provided. The glass substrate 10 has a first surface 103 and a second surface 104 , and the first surface 103 and the second surface 104 are arranged opposite to each other.

[0035] Then, if Figure 4 As shown, a first coating 101 is sprayed on a first surface 103 of the glass substrate 10, and the first coating 101 is a transparent UV glue; specifically, the first coating 101 is arranged on the upper surface of the housing glass substrate 10, and the first coating 101 is relatively flat, and covers the entire upper surface of the glass substrate 10, and the first coating 101 is specifically a primer. In the embodiment of the present application, a reciprocating sprayer or a vertical sprayer is used for spraying. Compared with manual spraying, the use of a reciprocating sprayer or a vertical sprayer reduces contact, reduces the oil contamination rate on the workpiece surface, and improves the spraying effect and qualified rate.

[0036] Furthermore, if Figure 5 As shown, the first coating 101 is pre-cured to remove bubbles formed during the spraying process. After the first coating 101 is pre-cured, the second coating 102 is sprayed on the surface of the first coating 101. The second coating 102 is also a transparent UV glue. The thickness of the second coating 102 is greater than the thickness of the first coating 101. The second coating 102 has a certain degree of concavity relative to the first coating 101, and its overall distribution is "corrugated". According to different customer needs, the second coating 102 can cover the entire first coating 101, or only a part of the first coating 101. The second coating 102 is specifically a texture layer. In the embodiment of the present application, a reciprocating sprayer or a vertical sprayer is also used for spraying.

[0037] Furthermore, if Figure 6 As shown, after the second coating 102 is pre-cured, a texture is formed on the surface of the second coating 102 through a rubbing process; the rubbing texture is formed by machining, such as through turning, milling, planing or grinding, to form textures such as straight stripes, spiral lines, circular textures, etc.

[0038] Finally, the corresponding parameters in the curing process are set, and the glass substrate 10 coated with the first coating 101 and the second coating 102 is fully cured to obtain a glass shell 12 with a texture. The obtained glass shell 12 is as shown in FIG. Figure 7 shown.

[0039] The surface processing method of the shell provided in the embodiment of the present application is to spray the first coating 101 on the first surface 103 of the glass substrate 10, spray the second coating 102 on the surface of the first coating 101, and then form a texture on the surface of the second coating 102 through a rubbing process. According to different user needs, different textures can be rubbed on the surface of the second coating 102 to obtain the corresponding texture effect, which greatly improves the problem of large limitations of the texture effect of the existing processing method. The layering, change, and depth of the product are greatly improved, thereby significantly improving the appearance and user experience of the electronic device.

[0040] In some embodiments of the present application, Figure 3 As shown, in order to prevent glue splashing and contaminating the glass substrate 10 during the spraying process, before spraying the first coating 101 on the first surface 103 of the glass substrate 10, the processing method also includes applying a protective film 13 on the second surface 104 of the glass substrate 10, and the size of the protective film 13 is larger than the size of the glass substrate 10. The protective film 13 in the embodiment of the present application has a certain transmittance, and the size of the protective film 13 is larger than the size of the glass substrate 10. The size of the protective film 13 is 0.2 mm larger than the size of the glass substrate 10, so that the protective film 13 can cover the glass substrate 10 in all directions.

[0041] In the embodiment of the present application, the second surface 104 may be pre-treated by washing and drying to remove pollutants and particles, reduce pinholes and other defects, and improve the adhesion of the UV glue. The varnish sprayed on the first surface 103 for spraying the first coating 101 may be a transparent UV glue or a colored UV glue. UV glue is cheap and does not contain any organic solvents. It does not produce volatile organic compounds (VOC) during use and does not pollute the ambient air. The spraying equipment uses a reciprocating sprayer or a vertical sprayer. Specifically, the spraying thickness of the transparent UV glue is 8-12μm, and the spraying thickness of the transparent UV glue of the second coating 102 is 25-35μm.

[0042] Since some bubbles are often generated during the spraying process, the transparent UV glue after spraying needs to be pre-cured, that is, the transparent UV glue after spraying needs to be baked to eliminate the bubbles therein and make it flat. In the embodiment of the present application, the UV baking temperature for the first coating 101 or the second coating 102 is 60-90°C, the baking time is 5-20 minutes, the UV light energy is Q1, and 100mj≤Q1≤500mj.

[0043] In the embodiment of the present application, the step of fully curing the glass substrate 10 coated with the first coating 101 and the second coating 102 is specifically to irradiate the glass substrate 10 coated with the first coating 101 and the second coating 102 with a mercury lamp having an energy range of 1500-2500 mj, and bake the glass substrate 10 in an environment having a temperature range of 100-150° C. for 30-60 minutes until the first coating 101 and the second coating 102 are completely cured to obtain the glass shell 12. After curing, the hardness of the second coating 102 can reach 7H or more, so that the hardness of the second coating 102 is consistent with that of the glass substrate 10.

[0044] In some embodiments of the present application, Figure 6 As shown, the step of forming a texture on the surface of the second coating 102 by a rubbing process is specifically to produce a film 111 with a texture; the film 111 is adhered to the second coating 102, and the second coating 102 and the film 111 are pressed together, and the film 111 is removed after the texture is formed on the second coating 102, and the size of the film 111 is larger than the size of the second coating 102.

[0045] In the embodiment of the present application, the prepared textured film 111 is attached to the second coating 102 by a flap laminating machine, so that the upper surface of the textured film 111 contacts the upper surface of the second coating 102, and then the surface of the second coating 102 with the film 111 attached is placed on the flat glass with the film 111 facing downward. During the process of laminating the film 111 to the second coating 102, the second coating 102 will fill the gap between the film 111 and the film 111, so that the two are tightly fitted. Specifically, during the laminating step, the film 111 can be placed on the second coating 102 and laid flat, and the flap laminating machine presses the film 111 and the second coating 102 along the extension direction of the film 111 according to a preset pressure. During the laminating process of the film 111 and the second coating 102, if the first coating 101 is a colored ultraviolet glue, the internal color film effect of the glass substrate 10 and the special texture effect of the outer surface can be combined to achieve a more unique visual effect. It should be noted that the size of the film 111 is expanded by 2 mm on one side relative to the size of the second coating layer 102 , so that the film 111 can fully cover the glass substrate 10 .

[0046] In some embodiments of the present application, Figure 2 As shown, the steps of making the film 111 with textures include forming a sub-mold 11 with multiple textures through a UV transfer process on a substrate; and cutting the sub-mold 11 to obtain the film 111.

[0047] In the embodiment of the present application, the ultraviolet (UV) transfer process uses ultraviolet rays to transfer the printed content to the surface of an object. It uses the non-stick properties of UV glue and metal to transfer various ultra-thin key effects to sheets such as polyester terephthalate films (PET) and polycarbonate boards (PC) through the UV transfer process, so that the sheets have sun patterns, woven patterns, fantasy effects, matte effects, etc. The UV transfer process is simpler and faster than traditional screen printing technology, improves the printing quality, and enables the device to have more colorful 2D and 3D appearance texture pattern effects. According to different customer needs, a sub-mold 11 with multiple textures is formed through the UV transfer process, wherein the sub-mold 11 can be a metal sub-mold, and different textures are formed on the upper surface of the sub-mold 11 by mechanical processing. Using the sub-mold 11, the texture is transferred to the PC film 111 by ultraviolet printing. Since the specific shape and size of the sub-mold 11 cannot be precisely controlled, the sub-mold 11 needs to be cut according to the specific requirements of the user and the sizes of different electronic devices to obtain the diaphragm 111 with a texture.

[0048] It should be noted that, during the UV transfer process, the ultraviolet light energy Q1 satisfies 800mj≤Q1≤1100mj. The present application only needs to make different textured films 111 to obtain the corresponding texture effects, which greatly improves the problem of the large limitations of the texture effects of the existing processing methods.

[0049] It should be noted that, in some embodiments of the present application, after the step of forming a texture on the surface of the second coating 102 by a rubbing process, before the step of fully curing the glass substrate 10 coated with the first coating 101 and the second coating 102, it also includes: degassing the glass substrate 10 coated with the first coating 101 and the second coating 102, and the degassing control pressure is 0.6-0.7MPa and the temperature is 20-30°C.

[0050] In the process of laminating the diaphragm 111 and the second coating 102, a small amount of bubbles are often generated. In order to eliminate the bubbles generated during the laminating process of the second coating 102 and the diaphragm 111, the laminating second coating 102 and the diaphragm 111 need to be placed in a vacuum degassing machine for degassing. The vacuum degassing machine uses an air compressor to inject high-pressure gas into the cabin of the degassing machine, so that a high-pressure working environment is formed in the cabin of the degassing machine. At this time, if the second coating 102 and the diaphragm 111 with bubbles are placed in the cabin of the degassing machine, since there is residual air in the bubbles in the screen, the high-pressure environment in the degassing machine and the air in the screen will form a pressure difference, thereby squeezing out the bubbles in the screen, achieving the effect of removing bubbles in the screen. In the embodiment of the present application, the pressure of the vacuum degassing machine is 0.6-0.7MPa, the degassing temperature is 20-30℃, and the degassing time is 50-80 minutes. If there are some stubborn small bubbles, you can use a clip to clamp it and then remove the bubbles.

[0051] When semi-curing the first coating layer 101 and the second coating layer 102 after degassing, the UV glue can be irradiated by the first ultraviolet light. The characteristic of the UV glue is that it will gradually cure when irradiated by ultraviolet light. The illumination energy of the first ultraviolet light is controlled at 350mj-650mj, which can cure the UV glue, but not completely, so that it enters a semi-cured state, wherein the illumination energy of the first ultraviolet light is Q2, and 350mj≤Q2≤650mj. Optionally, the illumination energy of the first ultraviolet light can be 480mj≤Q2≤520mj.

[0052] like Figure 7 As shown, in some embodiments of the present application, after obtaining the glass shell 12, it is necessary to tear off the protective film 13, and then perform a glue removal treatment on the glass shell 12. In the present application, the overflow glue around the glass shell 12 is removed by a peripheral polishing machine, and the overflow glue at smaller holes such as the camera hole of the electronic device is removed by hole polishing or manual glue removal. When the peripheral polishing machine is used for polishing, the polishing consumable is a white grinding strip, the current is set to 1.5-3.0A, and the time is 3-20 minutes; when the hole polishing is used, the polishing consumable is fine wool, the current is set to 0.2-1.5A, and the time is 3-30 minutes.

[0053] The present application also provides a shell, which is made by a shell processing method as provided in any of the above embodiments. Therefore, the shell also includes all the beneficial effects of the shell processing method as provided in any of the above embodiments. To avoid repetition, they will not be repeated here.

[0054] The shell provided in the embodiment of the present application realizes various texture effects on the surface of the glass substrate by using spray varnish and texture sub-mold rubbing. The spray varnish uses ultraviolet light glue, which is cheap and does not contain any organic solvents. It has no volatile organic compounds during use and does not pollute the ambient air. According to different user needs, only different textured films need to be made to obtain the corresponding texture effect. In addition, the shell provided by the present application combines the conventional internal color film effect with the special texture effect on the outer surface, which greatly enhances the product's sense of hierarchy, change, and depth, thereby significantly improving the appearance and user experience of the electronic device.

[0055] The embodiments of the present application further provide an electronic device, which includes the structure as in the above embodiments. Therefore, the electronic device also includes all the beneficial effects of the shell and the shell processing method in any of the above embodiments. To avoid repetition, they are not described here.

[0056] It should be noted that the present application can be applied to various consumer electronic devices, such as mobile phones, e-books, tablet computers, iPads and other electronic products.

[0057] The electronic device provided in the embodiment of the present application combines the conventional internal color film effect with the special texture effect on the outer surface. Designing different texture effects on the outer surface of the electronic device greatly enhances the product's sense of layering, change, and depth, thereby significantly improving the appearance and user experience of the electronic device.

[0058] It should be noted that this application can achieve the following beneficial effects:

[0059] (1) By making different textured films, the corresponding texture effects can be obtained, which greatly improves the problem of the limitations of the existing processing methods.

[0060] (2) UV glue is cheap and has lower costs than existing processes.

[0061] (3) UV glue does not emit any VOC during use and does not pollute the ambient air.

[0062] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0063] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A surface processing method for a shell, characterized in that: The shell is a glass shell, and the processing method includes: Providing a glass substrate having a first surface and a second surface; Spraying a first coating on the first surface of the glass substrate, wherein the first coating is a transparent UV glue; After pre-curing the first coating, spraying a second coating on the surface of the first coating, wherein the second coating is a transparent UV glue, the second coating has a certain degree of concavity relative to the first coating, and the thickness of the second coating is greater than that of the first coating; After pre-curing the second coating, a texture is formed on the surface of the second coating by a rubbing process; The glass substrate coated with the first coating and the second coating is fully cured to completely cure the first coating and the second coating to obtain a glass shell with a texture; the pre-curing treatment is used to remove bubbles formed during the spraying process.

2. The processing method according to claim 1, characterized in that: Before spraying the first coating on the first surface of the glass substrate, the processing method further comprises: A protective film is attached to the second surface of the glass substrate, and the size of the protective film is larger than the size of the glass substrate.

3. The processing method according to claim 1, characterized in that: The thickness of the first coating layer is 8-12 um, and the thickness of the second coating layer is 25-35 um.

4. The processing method according to claim 1, characterized in that: The pre-curing treatment is specifically as follows: The first coating or the second coating is placed in an environment with a temperature range of 60-90° C. and baked for 5-20 minutes, and irradiated with a mercury lamp with an energy range of 100-500 mj.

5. The processing method according to claim 1, characterized in that: The step of fully curing the glass substrate coated with the first coating and the second coating is specifically: The glass substrate coated with the first coating and the second coating is irradiated by a mercury lamp with an energy range of 1500-2500 mj, and the glass substrate is placed in an environment with a temperature range of 100-150° C. and baked for 30-60 minutes.

6. The processing method according to any one of claims 1 to 5, characterized in that: The step of forming a texture on the surface of the second coating layer by rubbing technology is specifically: Making a textured membrane; The film is attached to the second coating layer, and the second coating layer and the film are pressed together. After the second coating layer forms a texture, the film is removed. The size of the film is larger than that of the second coating layer.

7. The processing method according to claim 6, characterized in that: The method of making a diaphragm with a texture comprises: Forming a sub-mold having a plurality of the textures on the substrate through a rubbing process; The sub-mold is cut to obtain the membrane.

8. The processing method according to any one of claims 1 to 5, characterized in that: After the step of forming a texture on the surface of the second coating layer by a rubbing process, and before the step of fully curing the glass substrate coated with the first coating layer and the second coating layer, the method further includes: The glass substrate coated with the first coating and the second coating is degassed, and the degassed pressure is controlled to be 0.6-0.7 MPa and the temperature is 20-30°C.

9. A housing, characterized in that: The housing is manufactured by the processing method according to any one of claims 1 to 8.

10. An electronic device, characterized in that: include: A housing as claimed in claim 9.

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