WO2019062400A1

WO2019062400A1 - Shell fabrication method, shell and electronic equipment

Info

Publication number: WO2019062400A1
Application number: PCT/CN2018/101889
Authority: WO
Inventors: 杨光明; 孙文峰; 袁于才
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-09-29
Filing date: 2018-08-23
Publication date: 2019-04-04
Also published as: CN107666801B; CN107666801A

Abstract

A shell fabrication method, a shell and electronic equipment, the shell fabrication method comprising: providing a metal shell, the metal shell being provided with a surface; sandblasting the surface; oxidizing the sandblasted surface; determining a first area on the surface; performing first paint spraying treatment on the surface so as to form a pearlescent pigment layer on the surface; and removing a part located in the first area from the pearlescent pigment layer.

Description

Housing manufacturing method, housing and electronic device

The present application claims priority to Chinese Patent Application No. 200910912441.2, the disclosure of which is incorporated herein by reference. In this application.

Technical field

The present application relates to the field of electronic device technologies, and in particular, to a housing manufacturing method, a housing, and an electronic device.

Background technique

At present, the raw materials for the preparation of electronic devices, such as smart phones and tablets, are usually made of aluminum, such as aluminum alloy. Commercially available aluminum materials cannot be directly used due to problems such as their own hardness, and it is necessary to process the raw material aluminum a plurality of times to form a desired shell structure.

technical problem

The embodiment of the present application provides a housing manufacturing method, a housing, and an electronic device, which can improve structural stability of the housing.

Technical solution

The embodiment of the present application provides a method for manufacturing a housing, the housing is used for an electronic device, and the manufacturing method of the housing includes:

Providing a metal housing having a surface;

Sandblasting the surface to form a sandblasted surface on the surface;

Oxidizing the surface after the blasting treatment to form an oxide layer on the surface;

Determining a first region at the surface;

Performing a first painting treatment on the surface to form a pearlescent pigment layer on the surface;

A portion of the pearlescent pigment layer located within the first region is removed.

An embodiment of the present application further provides a housing for an electronic device, the housing having a surface, the surface including a first area and a second area, the first area being a sandblasted surface, The second region is formed with a layer of pearlescent pigment.

Beneficial effect

An embodiment of the present application further provides an electronic device, the electronic device includes a housing, the housing has a surface, the surface includes a first area and a second area, and the first area is a sandblasted surface. The second region is formed with a layer of pearlescent pigment.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

FIG. 2 is a schematic diagram of a first structure of a housing according to an embodiment of the present application.

FIG. 3 is a schematic diagram of a second structure of a housing according to an embodiment of the present application.

Figure 4 is a partially enlarged schematic view showing the area A in the casing shown in Figure 3.

FIG. 5 is a schematic view showing a third structure of a housing according to an embodiment of the present application.

Fig. 6 is a partially enlarged schematic view showing a region B in the casing shown in Fig. 5.

FIG. 7 is a schematic diagram of a first process of a method for manufacturing a housing according to an embodiment of the present application.

FIG. 8 is a second schematic flowchart of a method for manufacturing a housing according to an embodiment of the present application.

FIG. 9 is a third schematic flowchart of a method for manufacturing a housing according to an embodiment of the present application.

FIG. 10 is a schematic diagram of a first embodiment of a housing provided in an embodiment of the present application.

FIG. 11 is a schematic view showing the second embodiment of the housing provided in the embodiment of the present application.

FIG. 12 is a schematic diagram of a third embodiment of a housing provided in an embodiment of the present application.

FIG. 13 is a schematic diagram of a fourth embodiment of a housing provided in an embodiment of the present application.

FIG. 14 is a schematic view showing a fifth form of the housing in the manufacturing process according to an embodiment of the present application.

FIG. 15 is a schematic view showing a sixth embodiment of a housing provided in an embodiment of the present application.

FIG. 16 is a schematic view showing a seventh embodiment of a housing provided in an embodiment of the present application.

FIG. 17 is a schematic diagram of an eighth embodiment of a housing provided in an embodiment of the present application.

FIG. 18 is a schematic view showing a ninth aspect of a housing provided in an embodiment of the present application.

FIG. 19 is a schematic diagram of a tenth embodiment of a housing provided in an embodiment of the present application.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by a person skilled in the art based on the embodiments of the present application without creative efforts are within the scope of the present application.

The following disclosure provides many different embodiments or examples for implementing the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of the specific examples are described below. Of course, they are merely examples and are not intended to limit the application. In addition, the present application may repeat reference numerals and/or reference numerals in different examples, which are for the purpose of simplicity and clarity, and do not indicate the relationship between the various embodiments and/or arrangements discussed. Moreover, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the use of other processes and/or the use of other materials.

An embodiment of the present application provides an electronic device. The electronic device may be a device such as a smart phone or a tablet computer. Referring to FIG. 1, the electronic device 100 includes a cover 10, a display screen 20, a circuit board 30, and a housing 40.

The cover 10 is mounted to the display screen 20 to cover the display screen 20. The cover 10 can be a clear glass cover. In some embodiments, the cover 10 can be a cover glass made of a material such as sapphire.

The display screen 20 is mounted on the housing 40 to form a display surface of the electronic device 100. In some embodiments, display screen 20 includes display area 21 and non-display area 22. The display area 21 is for displaying information such as images, texts, and the like. The non-display area 22 does not display information. Functional components such as a fingerprint module and a touch circuit can be disposed at the bottom of the non-display area 22.

In some embodiments, display 20 is a liquid crystal display or an organic light emitting diode display.

The circuit board 30 is mounted inside the housing 40. Circuit board 30 can be the motherboard of electronic device 100. Functional components such as a camera, a proximity sensor, and a processor can be integrated on the circuit board 30. At the same time, the display screen 20 can be electrically connected to the circuit board 30.

In some embodiments, display control circuitry is provided on circuit board 30. The display control circuit outputs an electrical signal to the display screen 20 to control the display screen 20 to display information.

The housing 40 is for housing internal electronic components of the electronic device 100, such as a circuit board, a battery, and the like. At the same time, the housing 40 forms an outer contour of the electronic device 100.

In some embodiments, reference is made to FIG. 2, which is a cross-sectional view of the housing 40 of the electronic device 100 of FIG. 1 in the P-P direction. The housing 40 is a metal housing. For example, the material of the casing 40 may be aluminum, an aluminum alloy, a magnesium alloy, or the like.

It should be noted that, in practical applications, part of the non-metal may be attached to the metal casing 40 in the electronic device 100. For example, a plastic member is attached to one side of the housing 40. At this time, the portion attached to the casing 40 may be attached to the casing 40 after the casing 40 is completed. Therefore, it should be understood that the non-metallic portion attached to the housing 40 does not belong to the housing. Only metal casings are described in this application.

The housing 40 has a surface 401. The surface 401 is the outer surface of the housing 40, that is, the side visible to the user in the electronic device 100. Wherein, the surface 401 may be sandblasted so that the surface 401 is formed as a sandblasted surface.

An oxide layer 41 is formed on the surface 401. The oxide layer 41 may be formed by oxidizing a metal material of the case 40. For example, if the material of the casing 40 is aluminum alloy, the oxide layer 41 may be aluminum oxide. The thickness of the oxide layer 41 may be several tens of micrometers, for example, 30 micrometers. Wherein, the thickness of the housing 40 may be several millimeters, for example 4 millimeters. Therefore, the oxide layer 41 on the housing 40 is very thin relative to the housing 40. Since the oxide layer 41 is formed by oxidation of the metal material of the case 40, the surface of the oxide layer 41 is still a sandblasted surface, and the oxide layer 41 does not change the texture of the sandblasted surface of the case surface 401.

A thin film layer 42 can be formed on the oxide layer 41 by a physical vapor deposition method. The thickness of the film layer 42 is smaller than the thickness of the oxide layer 41. For example, the film layer 42 may have a thickness of 5 microns. Since the film layer 42 is formed by a physical vapor deposition method, and the film layer 42 is thin, the film layer 42 does not affect the texture of the blast surface of the case surface 401. It should be noted that the film layer 42 is not necessary for the casing 40. In other embodiments, the surface 401 of the housing 40 may not form the film layer 42.

The surface 401 of the housing 40 includes a first region 402 and a second region 403. The second region 403 is formed with a pearlescent pigment layer 43. Among them, the pearlescent pigment has a physical structure similar to pearls in cross section, the core of which is a low optical refractive index mica, and the outer layer is a high refractive index metal oxide such as titanium dioxide or iron oxide. Pearlescent pigments exhibit different effects in use depending on the size of the particles. In general, the larger the particle, the stronger the scintillation effect, and the weaker the hiding power of the ground color; on the contrary, the smaller the particle, the stronger the hiding power of the ground color, and the softer the gloss.

In the embodiment of the present application, the pearlescent pigment layer 43 of the second region 403 may cover the blasting surface effect in the second region 403. Thus, a portion of the surface 401 of the housing 40 (ie, the first region 402) is a sandblasted surface having a texture of a sandblasted surface, and another portion of the surface 401 (ie, the second region 403) is a pearlescent pigment layer having pearlescent light. The color effect of the pigment.

It should be noted that although FIG. 2 illustrates that the surface 401 of the housing 40 includes only two regions 402 and 403, in other embodiments, the surface 401 may also include multiple regions. For example, surface 401 can include three regions, four regions, and the like.

In some embodiments, reference is made to Figures 3 and 4. A primer layer 44 and a pearlescent pigment layer 43 may be formed on the second region 403 of the surface 401. The pearlescent pigment layer 43 covers the primer layer 44. Among them, the primer layer is the first layer of the entire paint layer, used to improve the adhesion of other coatings, increase the fullness of other coatings, provide alkali resistance, provide anti-corrosion function, etc., while ensuring uniformity of other coatings. Absorbs to give the entire paint layer the best results. The primer layer 44 can be a clear primer such that the second region 403 still exhibits the lustre effect of the pearlescent pigment layer 43.

In some embodiments, reference is made to Figures 5 and 6. A primer layer 44, a pearlescent pigment layer 43, and a topcoat layer 45 may be formed on the second region 403 of the surface 401. The pearlescent pigment layer 43 covers the primer layer 44, and the topcoat layer 45 covers the pearlescent pigment layer 43. Among them, the topcoat layer is the final coating of the entire paint layer, that is, the coating presented to the user. Both the primer layer 44 and the topcoat layer 45 may be transparent such that the second region 403 still exhibits the lustre effect of the pearlescent pigment layer 43.

In the housing 40 provided by the embodiment of the present application, since the oxide layer 41 is formed on the surface 401 of the housing 40, the pearl pigment layer 43 is formed in the second region 403 of the surface 401, so that the oxide layer 41 and the pearl pigment The layer 43 can protect the housing 40 from oxidation during the use of the housing 40, that is, improve the corrosion resistance of the housing 40, thereby improving the structural stability of the housing 40, thereby extending the electronic device 100. Life expectancy.

The embodiment of the present application further provides a method of manufacturing a housing. The housing manufacturing method is used to produce a housing. The housing can be used for the electronic device 100 described above. Referring to FIG. 7, the housing manufacturing method includes the following steps:

S110, providing a metal housing, the metal housing has a surface;

Among them, in the manufacturing process of the casing, a metal casing, such as the casing 40 shown in FIG. 10, is first provided. The housing 40 is a metal housing. The housing 40 may have a thickness of a few millimeters, such as 4 millimeters. The housing 40 has a surface 401. The surface 401 is the outer surface of the housing 40, that is, the side visible to the user in the electronic device.

S120, sandblasting the surface to form a sandblasting surface on the surface;

After the housing 40 is obtained, the surface 401 of the housing 40 is sandblasted to form a blasting surface on the surface 401, as shown in FIG.

Among them, sand blasting refers to the process of cleaning and roughening the surface of the substrate by the impact of high-speed sand flow. In the blasting process, compressed air is used as a power to form a high-speed jet beam to spray the spray (copper ore, quartz sand, corundum, iron sand, Hainan sand, etc.) at high speed onto the surface of the workpiece to be treated. Due to the impact of the spray on the surface of the workpiece and the cutting action, the surface of the workpiece is given the required roughness. After the blasting treatment, the blasting surface formed on the surface 401 has a certain roughness, so that a grainy texture can be exhibited during the user's touch.

S130, performing oxidation treatment on the surface after sand blasting to form an oxide layer on the surface;

After the surface 401 of the casing 40 is sandblasted, the surface 401 after the blasting treatment may be subjected to oxidation treatment to form an oxide layer 41 on the surface as shown in FIG.

Specifically, the surface 401 of the casing 40 may be oxidized by an anodizing process. Therein, the surface 401 of the housing 40 can be placed in an electrolyte (eg, dilute sulfuric acid) and then current is applied to the housing 40. The casing 40 serves as an anode, and a material such as a lead plate or a carbon rod is additionally provided as a cathode to effect anodization of the casing 40. After the oxidation is completed, the oxide layer 41 can be formed on the surface of the casing 40. The thickness of the oxide layer 41 may be several tens of micrometers, for example, 30 micrometers.

Since the oxide layer 41 is formed by oxidation of the metal material of the case 40, the surface of the oxide layer 41 is still a sandblasted surface, and the oxide layer 41 does not change the texture of the sandblasted surface of the case surface 401.

S140, determining a first area on the surface;

Where the surface 401 of the casing 40 forms the oxide layer 41, the first region 402 and the second region 403 are determined at the surface 401, as shown in FIG. The size of the first area 402 and the second area 403 can be determined according to requirements. For example, the first region 402 can be the upper half of the housing 40 and the second region 403 can be the lower half of the housing 40.

S150, performing a first painting process on the surface to form a pearlescent pigment layer on the surface;

After the surface 401 of the casing 40 forms the oxide layer 41, the surface 401 is subjected to a first painting process to form a pearl pigment layer 43 on the surface 401. The state in which the surface 401 of the casing 40 forms the pearlescent pigment layer 43 can be referred to FIG. Among them, the raw material used in the first painting treatment may be a pearlescent pigment. The pearlescent pigment cross-section has a physical structure similar to pearls, the core of which is a low optical refractive index mica, and the outer layer is a high refractive index metal oxide such as titanium dioxide or iron oxide. Pearlescent pigments exhibit different effects in use depending on the size of the particles. In general, the larger the particle, the stronger the scintillation effect, and the weaker the hiding power of the ground color; on the contrary, the smaller the particle, the stronger the hiding power of the ground color, and the softer the gloss. After the first painting process is completed, the pearlescent pigment layer 43 can be formed on the surface 401.

S160, removing a portion of the pearlescent pigment layer located in the first region.

After the pearlescent pigment layer 43 is formed on the surface 401 of the casing 40, the portion of the pearlescent pigment layer 43 located in the first region 402 is removed, as shown in FIG. Specifically, a portion of the pearlescent pigment layer 43 located in the first region 402 may be removed by a mechanical processing method. For example, the portion of the pearlescent pigment layer 43 that is located within the first region 402 is scraped off. In other embodiments, the portion of the pearlescent pigment layer 43 located in the first region 402 may be removed by chemical or electrochemical methods, which is not limited in the embodiment of the present application.

After the portion of the pearlescent pigment layer 43 located in the first region 402 is removed, the exposed surface of the first region 402 is the oxide layer 41, and the surface of the oxide layer 41 is a sandblasted surface. The exposed surface of the second region 403 is the pearlescent pigment layer 43. Thus, a portion of the surface 401 of the housing 40 (ie, the first region 402) is a sandblasted surface having a texture of a sandblasted surface, and another portion of the surface 401 (ie, the second region 403) is a pearlescent pigment layer having pearlescent light. The color effect of the pigment.

In some embodiments, as shown in FIG. 8, step S140, after the surface determines the first area, the method for manufacturing the housing further includes the following steps:

S171, spraying a shielding layer on the first area.

Wherein, after the first surface 402 is determined on the surface 401 of the casing 40, a shielding layer 46 may be sprayed on the first region 402, as shown in FIG. The shielding layer 46 is configured to shield a portion of the oxide layer 41 located in the first region 402 to prevent an influence on an oxide layer in the first region 402 during a subsequent fabrication process.

In some embodiments, the obscuring layer 46 is an ink layer.

In some embodiments, as shown in FIG. 8 , after the spraying of a shielding layer in the first area, the method for manufacturing the housing further includes the following steps:

S172, performing a second painting process on the surface to form a primer layer on the surface.

After the shielding layer 46 is formed in the first region 402, the surface 401 of the housing 40 may be subjected to a second painting process to form a primer layer 44 on the surface 401, as shown in FIG. . The raw material used in the second painting treatment may be a primer. Among them, the primer layer is the first layer of the entire paint layer, used to improve the adhesion of other coatings, increase the fullness of other coatings, provide alkali resistance, provide anti-corrosion function, etc., while ensuring uniformity of other coatings. Absorbs to give the entire paint layer the best results. Primer layer 44 can be a clear primer.

In some embodiments, as shown in FIG. 8, step S172, performing a second painting process on the surface to form a primer layer on the surface, the method for fabricating the housing further includes the following steps:

S173, performing a first high temperature treatment on the surface.

Wherein, after the primer layer 44 is formed on the surface 401 of the casing 40, the surface 401 may be subjected to a first high temperature treatment to accelerate the curing of the primer layer 44, so that the primer layer 44 is further stable.

In some embodiments, the first high temperature treatment can be a baking process. For example, the surface 401 can be baked for 30 minutes using a baking temperature of 80 degrees.

In some embodiments, as shown in FIG. 8, in step S150, the surface is subjected to a first painting process to form a pearlescent pigment layer on the surface, and the housing manufacturing method further comprises the following steps:

S174, performing a second high temperature treatment on the surface.

Wherein, after the pearlescent pigment layer 43 is formed on the surface 401 of the casing 40, the surface 401 may be subjected to a second high temperature treatment to accelerate the solidification molding of the pearlescent pigment layer 43 so that the pearlescent pigment layer 43 is further stable.

In some embodiments, the second high temperature treatment can be a baking process. For example, the surface 401 can be baked for 20 minutes using a baking temperature of 90 degrees. It should be noted that the method and the processing conditions of the second high temperature processing and the first high temperature processing may be different.

S175, performing a third painting process on the surface to form a topcoat layer on the surface.

After the pearlescent pigment layer 43 is formed on the surface 401 of the casing 40, the surface 401 may be subjected to a third painting process to form a topcoat layer 45 on the surface, as shown in FIG. The raw material used in the third painting treatment may be a topcoat. Among them, the topcoat layer is the final coating of the entire paint layer, that is, the coating presented to the user. The topcoat 45 can be transparent. Thus, the surface 401 of the housing 40 still exhibits the effect of the pearlescent pigment layer 43.

In some embodiments, as shown in FIG. 8 , after step S175, performing a third painting process on the surface, the housing manufacturing method further includes the following steps:

S176, performing a third high temperature treatment on the surface.

After the topcoat layer 45 is formed on the surface 401 of the casing 40, the surface 401 may be subjected to a third high temperature treatment to accelerate the curing of the topcoat layer 45, so that the topcoat layer 45 is further stable.

In some embodiments, the third high temperature treatment can be a baking process. For example, the surface 401 can be baked for 10 minutes using a baking temperature of 100 degrees. It should be noted that the third high temperature treatment may be different from the first high temperature treatment, the second high temperature treatment, and the set processing conditions.

In some embodiments, as shown in FIG. 8, step S160, removing the portion of the pearlescent pigment layer located in the first region comprises the following steps:

S161, removing the shielding layer in the first region and a portion of the primer layer located in the first region, a portion of the pearlescent pigment layer located in the first region, the topcoat layer A portion located within the first region.

Wherein, as shown in FIG. 19 and FIG. 5, the first region 402 of the surface 401 of the housing 40 is sprayed with a shielding layer 46, which is covered with a primer layer 44 on the primer layer 44. Covered with a pearlescent pigment layer 43, the pearlescent pigment layer 44 is covered with a topcoat layer 45. When the portion of the pearlescent pigment layer 43 located in the first region 402 is removed, the shielding layer 46 in the first region 402 and the first region 402 may be covered on the shielding layer 46. All coatings.

After removing the shielding layer 46 and all the coating layers on the shielding layer 46, the exposed surface of the first region 402 is the oxide layer 41, and the surface of the oxide layer 41 is a sandblasting surface. The exposed surface of the second region 403 is the topcoat layer 45, and the topcoat layer 45 is a clear topcoat, that is, the second region 403 exhibits the effect of the pearlescent pigment layer 43. Thus, a portion of the surface 401 of the housing 40 (ie, the first region 402) is a sandblasted surface having a texture of a sandblasted surface, and another portion of the surface 401 (ie, the second region 403) is a pearlescent pigment layer having pearlescent light. The color effect of the pigment.

In some embodiments, as shown in FIG. 9, the step of providing a metal casing in step S110 includes:

S111, providing a metal substrate;

S112, machining the metal substrate to obtain a metal case.

Among them, when manufacturing the casing, a metal substrate is first provided. The metal substrate may be a commercially available metal plate such as aluminum or aluminum alloy. Subsequently, the metal substrate is subjected to a mechanical processing to obtain a metal casing of a desired shape, size, and thickness. Wherein, the machining process may include a processing process such as cutting, forging or stamping.

In some embodiments, as shown in FIG. 9, in step S120, before the surface is sandblasted, the method for manufacturing the housing further includes:

S181, polishing the surface.

The surface 401 may be subjected to a buffing treatment prior to sandblasting the surface 401 of the casing 40 to obtain a flat, smooth casing surface as shown in FIG. Among them, polishing refers to the processing method of reducing the surface roughness of the workpiece by mechanical, chemical or electrochemical action to obtain a bright and smooth surface. After the polishing process, the surface 401 can be made smooth and smooth to facilitate subsequent processing.

In some embodiments, the surface 401 can be polished by sanding. Among them, sanding refers to a processing method that changes the physical properties of a material surface by friction by means of a rough object (a sandpaper containing a higher hardness particle, a grinding wheel, etc.). For example, the surface 401 can be sanded by a very fine grained grinding wheel to provide the surface 401 with a smooth, smooth effect.

In some embodiments, as shown in FIG. 9, in step S130, the surface after the blasting is subjected to an oxidation treatment to form an oxide layer on the surface, and the method for fabricating the housing further includes the following steps:

S182, the oxide layer is colored to make the oxide layer exhibit a preset color.

Referring to FIG. 13, after the oxide layer 41 is formed on the surface 401, the oxide layer 41 may be subjected to a coloring treatment. Specifically, the oxide layer 41 formed by the oxidation treatment has a porous surface. That is, the surface of the oxide layer 41 has a large number of minute pores. Dye and water of crystallization can be adsorbed in the minute pores. In order for the housing surface 401 to assume the desired color to meet the decorative requirements, the housing 40 can be placed in the dye after the oxidation of the housing surface 401 is completed to color the surface 401 of the housing 40. After the coloring process is completed, the oxide layer 41 can assume a preset color, such as blue.

S183, performing physical vapor deposition treatment on the surface to form a thin film layer on the surface.

Referring to FIG. 14, after the surface 401 is formed with the oxide layer 41, the surface 401 may be subjected to a physical vapor deposition process to form a thin film layer 42 on the surface 401. The film layer 42 covers the oxide layer 41.

Physical Vapor Deposition (PVD) refers to the process of transferring a substance or a molecule from a raw material to a surface of a workpiece by using a physical process. Its function is to make some particles with special properties (high strength, wear resistance, heat dissipation, corrosion resistance, etc.) spray on the lower performance workpieces, so that the workpiece has better performance.

The thickness of the film layer 42 is smaller than the thickness of the oxide layer 41. For example, the film layer 42 may have a thickness of 5 microns. Since the film layer 42 is formed by a physical vapor deposition method, and the film layer 42 is thin, the film layer 42 does not affect the texture of the blast surface of the surface of the oxide layer 41.

In the description of the present application, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include one or more of the described features either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

The housing manufacturing method, the housing, and the electronic device provided by the embodiments of the present application are described in detail. The principles and implementations of the present application are described in the specific examples. The description of the above embodiments is only used to help understand This application. In the meantime, those skilled in the art will be able to change the specific embodiments and the scope of the application according to the idea of the present application. In the above, the content of the specification should not be construed as limiting the present application.

Claims

A housing manufacturing method, the housing is used in an electronic device, wherein the housing manufacturing method comprises:

Providing a metal housing having a surface;

Sandblasting the surface to form a sandblasted surface on the surface;

Oxidizing the surface after the blasting treatment to form an oxide layer on the surface;

Determining a first region at the surface;

Performing a first painting treatment on the surface to form a pearlescent pigment layer on the surface;

A portion of the pearlescent pigment layer located within the first region is removed.
The method of manufacturing a housing according to claim 1, wherein before the step of performing the first painting process on the surface, the method of manufacturing the housing further comprises:

A masking layer is sprayed on the first area.
The method of manufacturing a casing according to claim 2, wherein said step of: said step of spraying a masking layer on said first region, said step of performing said first painting process on said surface The method also includes:

A second painting treatment is applied to the surface to form a primer layer on the surface.
The method of manufacturing a casing according to claim 3, wherein after said step of performing a first painting process on said surface, said step of removing said portion of said pearlescent pigment layer located in said first region, The method for manufacturing the housing further includes:

The surface is subjected to a third painting process to form a topcoat layer on the surface.
The method of manufacturing a casing according to claim 4, wherein the removing the portion of the pearlescent pigment layer located in the first region comprises:

Removing the shielding layer in the first region and a portion of the primer layer located in the first region, a portion of the pearlescent pigment layer located in the first region, and the topcoat layer is located at The part in the first area.
The method of manufacturing a casing according to claim 1, wherein before the step of sandblasting the surface, the method of manufacturing the casing further comprises:

The surface is polished.
The method of manufacturing a casing according to claim 6, wherein the polishing treatment comprises a sanding treatment.
The method of manufacturing a casing according to claim 1, wherein the step of oxidizing the surface after the blasting to form an oxide layer on the surface further comprises:

The oxide layer is subjected to a coloring treatment such that the oxide layer exhibits a predetermined color.
The method of manufacturing a casing according to claim 1, wherein said blasting said surface is oxidized to determine a first surface at said surface after said step of forming an oxide layer on said surface Before the step of the area, the method for manufacturing the housing further includes:

The surface is subjected to a physical vapor deposition process to form a thin film layer on the surface.
The method of manufacturing a casing according to claim 1, wherein said step of providing a metal casing comprises:

Providing a metal substrate;

The metal substrate is subjected to a mechanical processing to obtain a metal casing.
A housing, wherein the housing is for an electronic device, the housing having a surface, the surface including a first area and a second area, the first area being a sandblasted surface, the second The region is formed with a layer of pearlescent pigment.
The case according to claim 11, wherein said surface is formed with an oxide layer, a portion of said oxide layer located at said first region is a sandblasted surface, and said pearlescent pigment layer is formed at said oxide layer On the part of the second area.
The casing according to claim 12, wherein a primer layer is formed between the pearlescent pigment layer and the oxide layer.
The casing according to claim 13, wherein a top coat layer is formed on the pearl pigment layer.
The case according to claim 12, wherein a film layer is formed on the oxide layer.
An electronic device, wherein the electronic device includes a housing having a surface, the surface including a first area and a second area, the first area being a sandblasted surface, and the second area A layer of pearlescent pigment is formed.
The electronic device according to claim 16, wherein said surface is formed with an oxide layer, a portion of said oxide layer located in said first region is a sandblasted surface, and said pearlescent pigment layer is formed at said oxide layer On the part of the second area.
The electronic device according to claim 17, wherein a primer layer is formed between the pearl pigment layer and the oxide layer.
The electronic device according to claim 18, wherein a top coat layer is formed on said pearl pigment layer.
The electronic device according to claim 17, wherein a film layer is formed on said oxide layer.