WO2018068458A1

WO2018068458A1 - Preparation method for structural component, housing and electronic device

Info

Publication number: WO2018068458A1
Application number: PCT/CN2017/074274
Authority: WO
Inventors: 吴军涛; 蔡守骏
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-10-12
Filing date: 2017-02-21
Publication date: 2018-04-19
Also published as: CN107931614A

Abstract

Disclosed are a preparation method for a structural component, a housing and an electronic device. The preparation method comprises: processing a ceramic material (2) to obtain a ceramic structural component; processing the ceramic structural component as an insert by using a metallic material (1) to obtain a metallic-ceramic structural component with a metallic structural component at least partially wrapping the ceramic structural component; and processing the metallic-ceramic structural component to obtain a structural component combining metallic and ceramic materials. Two materials, i.e. a metallic material and a ceramic material, are tightly combined together to jointly form an integrated structural component.

Description

Method for preparing structural member, housing and electronic device

Technical field

The invention relates to, but is not limited to, the technical field of electronic devices, and relates to a method for preparing a structural member combined with a metal and a ceramic material, a casing and an electronic device.

Background technique

Electronic products such as mobile phones generally use a plastic case or a metal case, or a case in which plastic and metal are combined, and the appearance is single and the homogenization is serious. As a shell made of ceramic and metal, and the metal and ceramic seamlessly connected, the appearance of the product is novel and more high-end quality. At present, the preparation methods of the structural parts combining metal and ceramic materials mainly have the following schemes:

Option 1: Ceramic surface evaporation plating solution. Vacuum plating on the ceramic surface gives a part of the outer surface a metallic effect and gloss, achieving a combination of metallic and ceramic effects. The method of vacuum plating the surface of the department includes, but is not limited to, vacuum plating after masking, and all the outer surfaces are vacuum plated and then the partial plating is removed.

The metal effect of the scheme 1 is achieved by the coating of the vacuum coating, and has the following disadvantages: the vacuum coating is a layer of laminated film on the ceramic surface, and its adhesion is limited, and the coating may fall off in some actual scenes during use. Seriously damaged the overall appearance. At the same time, the vacuum coating effect is different from the real metal effect, and the texture of the real metal cannot be achieved.

Option 2: Metal and ceramic assembly solutions. The metal and ceramic are separately processed into separate parts, and the two are assembled together by a paste or the like.

Option 2 is the assembly of two separate parts. It is difficult to avoid the gaps and gaps in the assembly, the appearance is not good, and the assembly reliability of the assembly is difficult to guarantee.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a method for manufacturing a structural member, a housing, and an electronic device, which can The materials and ceramic materials are tightly joined together to form a complete unitary structural member.

The embodiment of the invention provides a method for preparing a structural member, and the preparation method comprises:

Processing the ceramic material to obtain a ceramic structural member;

The ceramic structural member is used as an insert, and is processed by a metal material to obtain a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member;

The cermet structural member is processed to obtain a structural member in which a metal and a ceramic material are combined.

Optionally, the processing the ceramic material to obtain the ceramic structural member comprises:

Preparation, injection molding, degreasing, sintering and mechanical processing of ceramic raw materials to obtain ceramic structural parts; or

The ceramic material is prepared, cast, formed, degreased, sintered, and machined to obtain a ceramic structural member.

Optionally, the ceramic structural member is used as an insert, and the metal material is used for injection degreasing and sintering treatment to obtain a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member, including:

If the metal material is a powder metallurgy material, the ceramic structural member is placed in a metal powder metallurgy injection mold for fixation, and then subjected to powder metallurgy injection molding, and a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member is obtained.

Optionally, the ceramic structural member is used as an insert, and the metal material is used for injection degreasing and sintering treatment to obtain a cermet structural member in which the metal structural member at least partially surrounds the ceramic structural member, including:

If the metal material is a liquid metal material, the ceramic structural member is placed in a liquid metal die-casting mold, and then subjected to die-casting molding, and the metal structural member in which the metal structural member at least partially wraps the ceramic structural member is obtained.

Optionally, the preparation method further includes:

According to the design of the design, the thickness of the appearance surface of the structural member combined with the metal and ceramic material is processed.

Optionally, the preparation method further includes:

The appearance surface of the structural member in which the metal and ceramic materials are combined is polished and polished.

Optionally, the ceramic structural member is embedded in the metal structural member; or

The metal structural member and the ceramic structural member adopt an inter-engaged bonding structure.

Optionally, the cermet structural member is processed to obtain a structural member combining metal and ceramic materials, including:

The cermet structural member is machined to obtain a structural member in which a metal and a ceramic material are combined.

The embodiment of the invention further provides a casing prepared by the preparation method of any of the above structural members.

The embodiment of the invention further provides an electronic device, including any of the above-mentioned housings.

The beneficial effects of the present application are: processing the ceramic material to obtain a ceramic structural member; using the ceramic structural member as an insert, and processing the metal material to obtain a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member; The cermet structural member is machined to obtain a structural member in which a metal and a ceramic material are combined. The structural components of the above technical solution include two materials of a metal material (such as stainless steel) and a ceramic material, and the two materials are distributed in different regions and positions of the casing, but the two are closely combined to form a complete integral structural member. Other aspects will be apparent upon reading and understanding the drawings and detailed description.

DRAWINGS

1 is a flow chart showing a method of fabricating a structural member according to Embodiment 1 of the present invention;

2 is a schematic view of a process part in the first embodiment of the present invention;

Figure 3 is a cross-sectional view showing a process part in the first embodiment of the present invention;

Figure 4 is an enlarged cross-sectional view showing a process part in the first embodiment of the present invention;

Figure 5 is a schematic view showing a design surface in the first embodiment of the present invention;

6 is a schematic view showing the combination of metal and ceramic in the first embodiment of the present invention;

7 is a schematic structural view of a ceramic embedded metal in the first embodiment of the present invention;

8 is another schematic structural view of a ceramic embedded metal in the first embodiment of the present invention;

9 is a schematic structural view of a plurality of ceramics embedded in a metal according to Embodiment 1 of the present invention;

10 is another schematic structural view of a plurality of ceramics embedded in a metal according to Embodiment 1 of the present invention;

11 is a schematic structural view showing another ceramic embedded in a metal according to Embodiment 1 of the present invention;

Fig. 12 is a schematic view showing another structure in which another ceramic is embedded in a metal according to the first embodiment of the present invention.

detailed description

Embodiments of the present application will be described below with reference to the drawings and embodiments. While the embodiments of the present application are shown in the drawings, it is understood that the invention may be embodied in various forms and not limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

Embodiment 1

Referring to Figure 1, there is shown a method of preparing a structural member, which is as follows:

Step 101: processing the ceramic material to obtain a ceramic structural member;

In this embodiment, optionally, the ceramic material is processed to obtain a ceramic structural member including:

Preparation, injection molding, degreasing, sintering, and mechanical processing (such as grinding, etc.) of ceramic raw materials to obtain ceramic structural parts; or

The ceramic material is prepared, cast, formed, degreased, sintered, and mechanically processed (such as sanding, etc.) to obtain a ceramic structural member.

It should be noted that the specific components of the ceramic material are not limited in this embodiment.

Step 102, using the ceramic structural member as an insert, and processing with a metal material to obtain a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member;

Optionally, if the metal material is a powder metallurgy material, the ceramic structural member is placed in a metal powder metallurgy injection mold, and then subjected to powder metallurgy injection molding, and the metal structural member is at least partially wrapped around the metal structural member. Ceramic structural parts.

In step 102, the ceramic structural member is used as an insert, which may mean that the ceramic structural member is embedded in the In the metal structural member; or the metal structural member, the metal structural member and the ceramic structural member adopt an interposed structure.

Step 103: Processing the cermet structural member to obtain a structural member combining metal and ceramic materials.

For example, the cermet structural member is mechanically processed (for example, computer numerically controlled machine tool, grinding, etc.) to obtain a structural member in which a metal and a ceramic material are combined.

In the structural member in which the metal and ceramic materials are combined by the above steps 101 to 103, the ceramic material and the metal material are closely bonded together.

In the present embodiment, after the structural member in which the above metal and ceramic materials are combined is obtained, the outer surface can be processed to a desired shape and appearance by, for example, a cutting or grinding process.

In this embodiment, optionally, the preparation method further includes:

Referring to Figures 2, 3 and 4, a general view of the process components is shown in Figure 2, a cross-sectional view of the process components is shown in Figure 3, and an enlarged cross-sectional view of the process components is shown in Figure 4.

The structural member in the embodiment of the present invention comprises a metal material 1 and a ceramic material 2.

The metal material 1 may be a powder metallurgy metal or a liquid metal. In this embodiment, the processing process of the powder metallurgy metal includes: injection molding, trimming, degreasing, sintering, machining, and surface treatment; and the processing process of the liquid metal may include die casting.

The ceramic material 2 may be a ceramic material. In the embodiment, the ceramic processing process employed includes any one of the following methods:

Method 1: Preparation of ceramic raw materials, injection molding, degreasing, sintering, mechanical processing (such as grinding, etc.);

Method 2, preparation, casting, molding, degreasing, sintering, mechanical processing (such as grinding, etc.) of ceramic raw materials;

In the injection molding process, degreasing and sintering are two very important links. Since a large amount of organic binder is added during the preparation of the feed before injection molding, the binder acts as a powder carrier after the blank is formed. Has been completed. In order to ensure that the molded product has higher purity in composition, it is necessary to remove the excess binder, and the blank after removing the binder becomes porous and brittle, and must be obtained by sintering. Density and certain mechanical properties.

Degreasing and sintering furnace, also called vacuum degreasing and sintering integrated furnace or vacuum degreasing and sintering rapid cooling furnace, can realize multiple processes such as degreasing, pre-baking, sintering and rapid cooling in the same furnace body, avoiding repeated movement and heating of the blank. The quality problems caused by cooling can also reduce the labor intensity of workers and greatly improve production efficiency.

The method for preparing the structural member combined with the metal and the ceramic material in the embodiment is described below with reference to FIG. 3 and FIG. 4, and the preparation method of the structural member includes:

Step 1, using the above ceramic processing process to complete the ceramic material 2;

Step 2: using the processed ceramic material 2 as an insert to form a part of the metal material;

Alternatively, depending on the material of the metal material 1, there may be different processes, including:

2a. If the metal material 1 is a powder metallurgy material, the processing process includes: placing the ceramic material 2 processed in the step 1 into another set of metal powder metallurgy injection molds, and then performing powder metallurgy injection molding, and forming the metal. Material 1 and ceramic material 2 are completely joined together;

2b. If the metal material 1 is a liquid metal material, the processing process includes: placing the ceramic material 2 processed in the step 1 into another liquid metal die-casting mold, and then performing die-casting, forming the metal material 1 and The two parts of the ceramic material 2 are completely joined together.

Step 3: mechanically processing the cermet parts after the completion of the above process (such as CNC (computer numerical control machine tool), grinding, etc.), removing the structural parts provided on the parts for auxiliary processing;

Step 4, as shown in FIG. 5, according to the design scheme of the design surface, removing a certain thickness of the material on the appearance surface;

It should be noted that FIG. 5 is only one design schematic of many aspects of the design of the design surface. In other embodiments, other aspects may be used for the design of the appearance surface.

Step 5. Polish and polish the appearance.

In order to enhance the bonding strength and tightness of the metal to the ceramic material, the metal and ceramic combination can be in the form shown in FIG. It should be noted that other design forms having the same ideas and principles as those of FIG. 6 are also protected by the present application.

Alternatively, the structural form of the ceramic embedded metal is as shown in FIGS. 7 and 8. 1 is a metal material and 2 is a ceramic material. The processing technology can be similar to any of the above solutions, and the ceramic material can be first made and then the metal material.

It should be noted that the embodiment of the present invention can also be applied to a plurality of ceramic-metal interfacing schemes, and the structural forms are as shown in FIG. 9 and FIG. Among them, 2 and 3 are two independent ceramic material parts, and 1 is a metal material. In the case of metal powder metallurgical forming or die casting, both

parts

2 and 3 are placed as inserts before molding. The processing scheme is similar to the aforementioned technical solution.

In this embodiment, other ceramics and metal-embedded technical solutions can adopt the structure shown in FIG. 11 and FIG. 12, wherein 2 is a ceramic material and 1 is a metal material.

Embodiment 2

An embodiment of the present invention provides a housing prepared by the method for preparing the structural member according to any one of the first embodiments.

The metal-ceramic integrated casing in the embodiment fully expresses the surface texture of the metal and the ceramic, and realizes a seamless connection, a good look and feel, and has a good artistic effect and practical prospect.

Embodiment 3

An embodiment of the present invention provides an electronic device, including the housing of any of the above embodiments. The casing comprises two materials, a metal material (such as stainless steel) and a ceramic material, and the two materials are distributed in different regions and positions of the casing, but the two are closely combined to form a complete integrated structural shell.

It is to be understood that the phrase "one embodiment" or "an embodiment" or "an embodiment" or "an embodiment" means that the particular features, structures, or characteristics relating to the embodiments are included in at least one embodiment of the present application. Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the embodiments of the present application, it should be understood that the size of the sequence number of the above process does not mean the order of execution sequence, and the order of execution of the process should be determined by its function and internal logic, and should not constitute the implementation process of the embodiment of the present invention. Any limit

Additionally, the terms "system" and "network" are used interchangeably herein.

It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined from A. However, it should also be understood that determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

In addition, the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transmitting and receiving method according to the embodiment of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

The above description is an alternative embodiment of the present application, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles described herein, and these improvements and retouchings are also Within the scope of protection of this application.

Industrial applicability

The above technical solution can make a metal material (such as stainless steel) and a ceramic material closely combined to form a complete integrated structural member.

Claims

A method for preparing a structural member, the preparation method comprising:

Processing the ceramic material to obtain a ceramic structural member;

The ceramic structural member is used as an insert, and is processed by a metal material to obtain a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member;

The cermet structural member is processed to obtain a structural member in which a metal and a ceramic material are combined.
The preparation method according to claim 1, wherein the processing of the ceramic material to obtain the ceramic structural member comprises:

Preparation, injection molding, degreasing, sintering and mechanical processing of ceramic raw materials to obtain ceramic structural parts; or

The ceramic material is prepared, cast, formed, degreased, sintered, and machined to obtain a ceramic structural member.
The preparation method according to claim 1 or 2, wherein the ceramic structural member is used as an insert, and the metal material is subjected to injection degreasing and sintering treatment to obtain a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member. ,include:

If the metal material is a powder metallurgy material, the ceramic structural member is placed in a metal powder metallurgy injection mold for fixation, and then subjected to powder metallurgy injection molding, and a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member is obtained.
The preparation method according to claim 1 or 2, wherein the ceramic structural member is used as an insert, and the metal material is subjected to injection degreasing and sintering treatment to obtain a cermet structural member in which the metal structural member at least partially wraps the ceramic structural member. ,include:

If the metal material is a liquid metal material, the ceramic structural member is placed in a liquid metal die-casting mold, and then subjected to die-casting molding, and the metal structural member in which the metal structural member at least partially wraps the ceramic structural member is obtained.
The preparation method according to claim 1, further comprising:

According to the design of the design, the thickness of the appearance surface of the structural member combined with the metal and ceramic material is processed.
The preparation method according to claim 5, further comprising:

The appearance surface of the structural member in which the metal and ceramic materials are combined is polished and polished.
The preparation method according to claim 1, wherein:

The ceramic structural member is embedded in the metal structural member; or

The metal structural member and the ceramic structural member adopt an interposed structure.
The preparation method according to claim 1, wherein the cermet structural member is processed to obtain a structural member in which a metal and a ceramic material are combined, comprising:

The cermet structural member is machined to obtain a structural member in which a metal and a ceramic material are combined.
A casing prepared by the method for producing a structural member according to any one of claims 1 to 8.
An electronic device comprising the housing of claim 9.