WO2023142728A1

WO2023142728A1 - Housing, preparation method therefor, and electronic device

Info

Publication number: WO2023142728A1
Application number: PCT/CN2022/138428
Authority: WO
Inventors: 晏刚
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-01-28
Filing date: 2022-12-12
Publication date: 2023-08-03
Also published as: CN114423205A; CN114423205B

Abstract

The present application provides a housing, a preparation method therefor, and an electronic device. The housing comprises: a ceramic housing body; and a glaze layer arranged on the side of the ceramic housing body. The glaze layer is provided with a plurality of texture parts, the plurality of texture parts are arranged on the surface, away from the ceramic housing body, of the glaze layer according to a preset rule, and the texture parts can reflect light, so that the housing has a flashing effect. The housing of the present application can present a matte high flashing effect.

Description

Shell, its preparation method and electronic device

technical field

The present application relates to the field of electronics, in particular to a shell, its preparation method and electronic equipment.

Background technique

With the development of communication technology, mobile terminals such as mobile phones and tablet computers have become indispensable tools for people. When faced with a wide range of mobile terminal products, consumers not only need to consider whether the functions of the products meet their own needs, but also the appearance of the products is one of the important factors that determine whether consumers choose or not. However, with the iteration of mobile terminals, the appearance of mobile terminals of various brands tends to be homogenized gradually, and the appearance recognition is poor. Ceramics have a warm feel and high-gloss texture, so they are often used in high-end electronic equipment casings, middle frames, decorative parts and other appearance structural parts. However, its appearance is still relatively simple.

Contents of the invention

The embodiment of the first aspect of the present application provides a casing, which includes:

the ceramic housing body; and

A glaze layer, the glaze layer is arranged on one side of the ceramic shell body, the glaze layer has a plurality of textured parts, and the plurality of textured parts are arranged on the glaze layer away from the ceramic according to a preset rule On the surface of the shell body, the textured portion can reflect light, so that the shell has a flashing effect.

The embodiment of the second aspect of the present application provides a method for preparing a housing, which particularly includes:

Prepare the ceramic shell body;

A glaze layer is formed on the surface of the ceramic housing body, and a plurality of textured parts are formed on the surface of the glaze layer away from the ceramic housing body, the plurality of textured parts are arranged according to a preset rule, and the textured parts can The light is reflected, so that the casing has a flashing effect.

The embodiment of the third aspect of the present application provides an electronic device, which includes:

display components;

The housing described in the embodiment of the present application, the housing is arranged on one side of the display assembly; and

A circuit board assembly, the circuit board assembly is arranged between the casing and the display assembly, and is electrically connected to the display assembly, and is used to control the display assembly to display.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic perspective view of a housing according to an embodiment of the present application.

FIG. 2 is a schematic cross-sectional structural view of the casing along the A-A direction in FIG. 1 according to an embodiment of the present application.

Fig. 3 is a schematic cross-sectional structure diagram of a housing according to another embodiment of the present application along the direction A-A in Fig. 1 .

FIG. 4 is a topographical view of the surface of the glaze layer of the housing according to an embodiment of the present application.

FIG. 5 is a schematic structural view of a glaze layer surface of a casing according to an embodiment of the present application.

Fig. 6 is a schematic structural view of the surface of the glaze layer of the casing according to another embodiment of the present application.

FIG. 7 is an enlarged view of the dashed box I in FIG. 2 .

FIG. 8 is an enlarged view of the dashed box II in FIG. 3 .

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

FIG. 10 is a schematic flowchart of a method for preparing a ceramic shell body according to an embodiment of the present application.

Fig. 11 is a schematic flowchart of a method for preparing a ceramic shell body according to another embodiment of the present application.

FIG. 12 is a schematic flowchart of a method for preparing a housing according to an embodiment of the present application.

Fig. 13 is a schematic structural diagram of the manufacturing process of the casing according to an embodiment of the present application.

Fig. 14 is a schematic structural diagram of a texture mold according to an embodiment of the present application.

Fig. 15 is a schematic structural view of a texture mold according to another embodiment of the present application.

FIG. 16 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

FIG. 17 is a circuit block diagram of an electronic device according to an embodiment of the present application.

Fig. 18 is a schematic diagram of a partial exploded structure of an electronic device according to an embodiment of the present application.

Fig. 19 is a circuit block diagram of an electronic device according to yet another embodiment of the present application.

Explanation of reference signs:

100-shell, 10-ceramic shell body, 30-glaze layer, 31-glaze layer away from the surface of the ceramic shell body, 33a-texture unit, 33-texture part, 331-reflective surface, 100'-texture mold, 10'-substrate layer, 30'-texture layer, 50'-release layer, 400-electronic equipment, 410-display components, 420-middle frame, 430-circuit board components, 431-processor, 433-memory, 450-camera module, 101-light transmission part.

Detailed ways

The first aspect of the present application provides a casing, which includes:

the ceramic housing body; and

Wherein, the textured portion has a plurality of reflective surfaces, and the orientations of the multiple reflective surfaces of the same textured portion are different from each other, and at least part of the reflective surfaces of the textured portion have the same orientation.

Wherein, the range of roughness Ra of the glaze layer away from the ceramic shell body is 0.1 μm≤Ra≤0.5 μm.

Wherein, the glossiness G of the surface of the glaze layer away from the ceramic shell body is in the range of 110Gu≤G≤150Gu.

Wherein, the texture part is at least one of point texture and linear texture. When the texture part is point texture, the orthographic projection of the texture part on the surface of the glaze layer away from the ceramic shell body The range of the longest distance w1 in the enclosed area is 120 μm≤w1≤200 μm; when the textured part is a linear texture, the textured part is in the area surrounded by the orthographic projection of the glaze layer away from the surface of the ceramic shell body The range of the shortest distance w2 is 120μm≤w2≤200μm.

Wherein, when the texture part is a convex structure, along the direction perpendicular to the surface of the glaze layer, the range of the maximum height h of the texture part is 40μm≤h≤180μm; when the texture part is a concave structure, along the In a direction perpendicular to the surface of the glaze layer, the maximum depth h of the textured part is in the range of 40 μm≤h≤180 μm.

Wherein, when the textured part is a point texture, the shortest distance s between any two adjacent textured parts is in the range of 100 μm≤s≤500 μm.

Wherein, the texture portion is at least one of a convex structure and a concave structure, the texture portion includes a reflective surface, and the reflective surface is a plane; the reflective surface and the glaze layer are far away from the ceramic shell body The angle α between the surfaces is in the range of 30°≤α≤60°.

Wherein, when the textured portion is a convex structure, the textured portion includes at least one of a pyramid, a prism or a linear convex structure; when the textured portion is a concave structure, the textured portion includes an inverted At least one of pyramids, inverted pyramids or linear concave structures; the pyramids include one or more of triangular pyramids, quadrangular pyramids, pentagonal pyramids, hexagonal pyramids, heptagonal pyramids, octagonal pyramids, and star-shaped pyramids; The prism includes one or more of three prisms, four prisms, five prisms, six prisms, seven prisms, eight prisms, and star prisms; the inverted pyramids include inverted triangular pyramids, inverted four One or more of pyramids, inverted pentagonal pyramids, inverted hexagonal pyramids, inverted heptagonal pyramids, inverted octagonal pyramids, and inverted star-shaped pyramids; the inverted pyramids include inverted triangular pyramids, inverted quadrangular pyramids, and inverted pentagonal pyramids , one or more of inverted hexagonal trusses, inverted hexagonal trusses, inverted octagonal trusses, and inverted star-shaped prisms.

Wherein, the raw material components of the ceramic shell body include ceramic powder, and the range of the average particle size d of the ceramic powder is 0.2μm≤d≤0.8μm; the ceramic powder includes zirconia, alumina, At least one of silicon dioxide, titanium dioxide, silicon nitride, magnesium oxide, chromium oxide, beryllium oxide, vanadium pentoxide, diboron trioxide, spinel, zinc oxide, calcium oxide, mullite, barium titanate kind.

Wherein, the glaze layer has at least one color; the thickness of the glaze layer is in the range of 100 μm to 200 μm; the glaze layer includes potassium oxide, sodium oxide, calcium oxide, magnesium oxide, aluminum oxide, silicon oxide, beryllium oxide at least one of the

The second aspect of the present application provides a method for preparing a casing, which includes:

preparing the ceramic housing body; and

Wherein, a glaze layer is formed on the surface of the ceramic shell body, and a plurality of textured parts are formed on the surface of the glaze layer away from the ceramic shell body; including:

forming a glaze layer on the surface of the ceramic housing body, and forming a plurality of textured parts on the surface of the glaze layer away from the ceramic housing body; and

The first sintering is carried out at 1000°C to 1200°C, and the time of the first sintering ranges from 3h to 5h, so that the glaze layer forms a glaze layer.

Wherein, the preparation method also includes:

The second polishing is performed in a polishing liquid, wherein the polishing liquid includes polishing particles, the average particle diameter of the polishing particles ranges from 80 nm to 120 nm, and the pH value of the polishing liquid is 9 to 12.

Wherein, the polishing particles include at least one of silicon dioxide particles, aluminum oxide particles, and cerium oxide particles.

Wherein, the preparation of the ceramic housing body includes:

Mix the ceramic powder with a binder and granulate to obtain pellets, the mesh of the pellets ranges from 40 mesh to 100 mesh, and the BET specific surface area of the pellets ranges from 6m ² /g to 10m ² /g, the binder is at least one of epoxy binder and polyether binder, and in the pellets, the weight percentage of the binder is in the range of 3% to 5% ;

molding using the pellets to obtain a green body; and

The green body is subjected to debinding and second sintering to obtain a ceramic shell body.

Wherein, the molding is at least one of compression molding, injection molding, and tape casting;

When the molding is compression molding, the pellets are used for molding to obtain a green body, including:

Molding is performed at a molding pressure ranging from 10 MPa to 15 MPa, and the pressure is maintained for 10 seconds to 20 seconds to obtain a green body.

Wherein, the said green body is debinding and second sintered, including:

Gradually raise the temperature of the green body from 800°C to 950°C for debinding, the debinding time ranges from 2h to 3h, and perform the second sintering at 1350°C to 1500°C, the time of the second sintering The range is 8h to 10h.

Wherein, after debinding the green body and performing the second sintering, the preparation of the ceramic shell body further includes:

Carrying out mechanical processing and first polishing, so that the roughness Ra' of the ceramic shell body is in the range of 5nm to 25nm, the glossiness of the surface of the ceramic shell body is 130Gu to 160Gu, and the ceramic shell body has a The gloss is greater than that of the glaze layer.

The third aspect of the present application provides an electronic device, which includes:

display components;

The casing, the casing is arranged on one side of the display assembly, the casing includes a ceramic casing body and a glaze layer, the glaze layer is arranged on one side of the ceramic casing body, the glaze layer It has a plurality of textured parts, and the multiple textured parts are arranged on the surface of the glaze layer away from the ceramic shell body according to preset rules, and the textured parts can reflect light, so that the shell has a flashing effects; and

A circuit board assembly, the circuit board assembly is arranged between the housing and the display assembly, and is electrically connected to the display assembly, and is used to control the display assembly to display.

In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

It should be noted that, for ease of description, in the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, detailed descriptions of the same components are omitted.

The embodiment of the present application provides a casing 100. The casing 100 of the present application can be applied to portable electronic devices such as mobile phones, tablet computers, notebook computers, desktop computers, smart bracelets, smart watches, e-readers, and game consoles (such as Figure 16 and Figure 18). The casing 100 in the embodiment of the present application may be a 2D structure, a 2.5D structure, a 3D structure, or the like. The casing 100 of the present application may be a middle frame, a rear cover (battery cover), a decoration, etc. of an electronic device. In the following embodiments of the present application, the casing 100 is described in detail by taking the back cover of a mobile phone as an example, which should not be construed as a limitation to the casing 100 of the present application.

Referring to Fig. 1 to Fig. 3, the embodiment of the present application provides a housing 100, which includes a ceramic housing body 10 and a glaze layer 30, the glaze layer 30 is arranged on one side of the ceramic housing body 10, so The glaze layer 30 has a plurality of textured parts 33, and the plurality of textured parts 33 are arranged on the surface 31 of the glaze layer 30 away from the ceramic housing body 10 according to preset rules, and the textured parts 33 can The light is reflected, so that the casing 100 has a flashing effect.

The term "plurality" in this application refers to a positive integer greater than or equal to two.

It should be noted that the “disposed on one side of a certain film layer” in the present application can be set on the surface of the film layer; it can also be set on the opposite side of the film layer and at intervals, and also set between the film layer There are other layers. For example, the glaze layer 30 is disposed on one side of the ceramic housing body 10, and may be that the glaze layer 30 is disposed on the surface of the ceramic housing body 10; , There are other film layers between the glaze layer 30 and the ceramic housing body 10 . In the illustrations of the present application, the glaze layer 30 is disposed on one surface of the housing body 100 as an example for illustration, which should not be construed as a specific limitation on the housing 100 of the present application.

The glaze layer 30 is disposed on one side of the ceramic housing body 10, it can be understood that the glaze layer 30 can be disposed on all surface sides of the ceramic housing body 10; the glaze layer 30 can also be disposed on the ceramic housing body 10 One of the surface sides; the glaze layer 30 may also cover only a part of one surface side of the ceramic housing body 10 .

The plurality of textured parts 33 are arranged on the surface 31 of the glaze layer 30 away from the ceramic housing body 10 according to a preset rule. It can be understood that the plurality of textured parts 33 can be arranged according to a preset rule. On a part of the surface of the glaze layer 30 away from the surface 31 of the ceramic housing body 10, it can also be arranged on the entire surface of the glaze layer 30 away from the surface 31 of the ceramic housing body 10 according to a preset rule superior. The distribution of the plurality of textured parts 33 can be determined according to the appearance effect that the casing 100 needs to present.

The plurality of textured parts 33 are arranged according to a preset rule, which can be, but not limited to, the plurality of textured parts 33 are arranged according to the pre-designed needs, for example, the plurality of textured parts 33 are arranged in a snowflake shape or a hexagonal cone shape, etc. Shape, the surface of the glaze layer 30 is arranged in a plurality of snowflake-like or hexagonal pyramid-like structures according to preset rules.

The housing 100 of the embodiment of the present application includes a ceramic housing body 10 and a glaze layer 30. The glaze layer 30 has a plurality of textured parts 33, and the textured parts 33 are arranged in the glaze layer away from the ceramic housing body according to a preset rule. The surface of the housing 100, the textured part can reflect light, so that the housing has a flash effect, the textured part 33 mirrors the light, thereby forming a flashing light on the surface of the housing 100, and no textured part is provided on the glaze layer 30 The position of 33 forms a matte finish, thus, through the design of the shape, size and arrangement of the textured part 33, it is possible to form glitter patterns of different shapes such as high-shine particles or lines on the surface of the housing 100, so that The flashing structure on the surface of the housing 100 can be designed, and the graphics, size, and arrangement can be designed according to the needs, and various decorative patterns and effects can be obtained, which can better meet the needs of users.

Optionally, the thickness of the ceramic housing body 10 is 0.3mm to 1mm; specifically, the thickness of the ceramic housing body 10 can be but not limited to 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm , 0.9mm, 1mm, etc. When the ceramic housing body 10 is too thin, it cannot well support and protect, and the mechanical strength cannot meet the requirements of the electronic equipment housing 100 well. When the ceramic housing body 10 is too thick, it will increase The weight of the electronic device affects the feel of the electronic device, and the user experience is not good.

In the embodiments of the present application, when it comes to the numerical range a to b, unless otherwise specified, it means that the endpoint value a is included, and the endpoint value b is included. For example, the thickness of the above-mentioned ceramic housing body 10 is 0.3 mm to 1 mm, which means that the thickness of the body 10 of the housing 100 can be any value between 0.3 mm and 1 mm, including the endpoint 0.3 mm and the endpoint 1 mm.

Optionally, the raw material components of the ceramic shell body 10 include ceramic powder. Optionally, the ceramic powder includes zirconia, alumina, silicon dioxide, titanium dioxide, silicon nitride, magnesium oxide, chromium oxide, beryllium oxide, vanadium pentoxide, boron trioxide, spinel, oxide At least one of zinc, calcium oxide, mullite, and barium titanate. In a specific embodiment, the ceramic powder is zirconia powder, and the ceramic shell body 10 is a zirconia ceramic shell body 10 .

In some embodiments, the raw material components of the ceramic housing body 10 further include a binder. Optionally, the binder is at least one of epoxy binder and polyether binder. It should be noted that the decomposition or volatilization temperature of the binder is lower than the temperature during debinding, so that the binder can be completely eliminated through decomposition or volatilization during debinding, so as to avoid the residue of the binder, so that in the sintered During the process, holes remain on the ceramic housing body 10 , reducing the mechanical strength of the formed ceramic housing body 10 and affecting the appearance of the ceramic housing body 10 . Optionally, in the raw material components of the ceramic housing body 10 , the weight percentage of the binder ranges from 3% to 5%. Specifically, the weight percentage of the binder may be, but not limited to, 3%, 3.5%, 4%, 4.5%, 5% and so on.

In some embodiments, the raw material components of the ceramic shell body 10 further include a dispersant, the dispersant is used for more uniform mixing of the binder and the ceramic powder, and the mixed system is more stable after mixing. The dispersant can be, but not limited to, liquid paraffin and the like. In the raw material components of the ceramic shell body 10, the weight percentage of the dispersant ranges from 1% to 5%, specifically, it can be but not limited to 1%, 2%, 3%, 4%, 5% %wait. It should be noted that the decomposition or volatilization temperature of the dispersant is lower than the temperature during debinding, so that the dispersant can be completely eliminated through decomposition or volatilization during debinding, so as to avoid the residue of the dispersant, so that during the sintering process, Holes remain on the ceramic case 100 , reducing the mechanical strength of the formed ceramic case 100 and affecting the appearance of the ceramic case 100 .

In some embodiments, the raw material components of the ceramic housing body 10 further include colorants, and the coloring materials are used to make the ceramic housing body 10 have a color pattern or color, so that the housing 100 has a color pattern Or color, such as the patterns and colors of blue and white porcelain. By controlling the color and proportion of the coloring material, the ceramic casing body 10 can have different appearance effects, so that the casing 100 can have different appearance effects. Alternatively, the colorant may be an inorganic colorant. Optionally, the inorganic pigment can be but not limited to iron oxide, cobalt oxide, manganese oxide and the like. In the raw material components of the ceramic shell body 10, the weight percentage of the coloring material ranges from 3% to 10%, specifically, it can be but not limited to 3%, 4%, 5%, 6%, 7% %, 8%, 9%, 10%, etc.

Optionally, the ceramic housing body 10 has at least one color. Further, the ceramic housing body 10 has at least two colors. Specifically, the ceramic housing body 10 may have 1 type, 2 types, 3 types, 4 types, 5 types, 6 types, 7 types, 8 types and so on. In this way, the selection and design of the glaze forming the ceramic housing body 10 can make the ceramic housing body 10 have a color pattern. Optionally, the ceramic housing body 10 may have at least one of red, white, gray, blue, orange, yellow, green, purple, pink and the like.

Optionally, the range of the average particle size d of the ceramic powder is 0.2 μm≤d≤0.8 μm. Specifically, the average particle size of the ceramic powder may be, but not limited to, 0.2 μm, 0.3 μm, 0.4 μm, 0.5 μm, 0.6 μm, 0.7 μm, 0.8 μm. The particle size of the ceramic powder is too small, which increases the difficulty of preparation, thereby increasing the cost. When the particle size of the ceramic powder is as small as nanometers, the ceramic powder is easy to agglomerate to form large particles, which will reduce the size of the ceramic shell body 10 mechanical strength; when the particle size of the ceramic powder is too large, for example greater than 0.8 μm, the mechanical strength of the ceramic shell body 10 produced will also be reduced. Therefore, when the particle size of the ceramic powder ranges from 0.2 μm to 0.8 μm, the prepared ceramic shell body 10 can not only have better mechanical strength, but also have lower manufacturing cost. "Average particle size" refers to the average value of all particle sizes of the ceramic powder.

Optionally, the glossiness of the ceramic housing body 10 ranges from 130Gu to 160Gu (60° angle test). Specifically, the glossiness of the ceramic shell body 10 may be, but not limited to, 130Gu, 135Gu, 140Gu, 145Gu, 150Gu, 155Gu, 160Gu and so on.

Optionally, the roughness Ra' of the ceramic housing body 10 ranges from 5 nm to 25 nm. Specifically, it may be, but not limited to, 5nm, 8nm, 10nm, 13nm, 15nm, 18nm, 20nm, 23nm, 25nm, etc. When the roughness Ra' of the ceramic shell body 10 is higher than 25nm, it is not conducive to controlling the thickness of the glaze layer. When the roughness Ra' of the ceramic shell body 10 is 5nm to 25nm, the requirements for glaze layer construction have been met. Continue Polishing adds to preparation costs.

Optionally, the Vickers hardness of the ceramic housing body 10 of the present application may be, but not limited to, 1200HV to 1400HV. Specifically, it may be, but not limited to, 1200HV, 1230HV, 1250HV, 1280HV, 1300HV, 1320HV, 1350HV, 1380HV, 1400HV, etc. The higher the Vickers hardness of the ceramic housing body 10 is, the higher the hardness of the obtained housing 100 is.

Optionally, the glaze layer 30 has at least one color. Further, the glaze layer 30 has at least two colors. Specifically, the glaze layer 30 may have 1 type, 2 types, 3 types, 4 types, 5 types, 6 types, 7 types, 8 types and so on. In this way, the selection and design of the glaze material forming the glaze layer 30 can make the glaze layer 30 have a color pattern. Optionally, the glaze layer 30 may have at least one of red, white, gray, blue, orange, yellow, green, purple, pink and the like.

It should be noted that the color of the glaze layer 30 and the color of the ceramic housing body 10 may be the same or different. When the color of the glaze layer 30 is the same as that of the ceramic housing body 10, the overall housing 100 presents a relatively uniform color; The ceramic housing body 10 presents the color of the glaze layer 30 superimposed on the ceramic housing body 10 .

Optionally, the glaze layer 30 is formed by matte oil after sintering, so that the obtained casing 100 has a shiny matte effect, making the casing 100 look more low-key and luxurious, and has better visual effects.

In some embodiments, the glaze layer 30 includes at least one of potassium oxide, sodium oxide, calcium oxide, magnesium oxide, aluminum oxide, silicon oxide, and beryllium oxide. In a specific embodiment, the glaze layer 30 includes the following components in molar fractions: 0.198 mol potassium oxide, 0.109 mol sodium oxide, 0.571 mol calcium oxide, 0.122 mol magnesium oxide, 0.639 mol aluminum oxide, 5.32 mol silicon oxide, 0.217 mol mol of beryllium oxide, during preparation, the glaze with the molar ratio of components is coated on the ceramic shell body 10, and after sintering, the glaze layer 30 is obtained.

In some embodiments, the thickness of the glaze layer 30 ranges from 100 μm to 200 μm. Specifically, the thickness of the glaze layer 30 may be, but not limited to, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, 200 μm and so on.

Optionally, the Vickers hardness of the glaze layer 30 of the present application may be, but not limited to, 550HV to 700HV. Specifically, it can be but not limited to 550HV, 580HV, 600HV, 620HV, 650HV, 680HV, 700HV, etc. The higher the Vickers hardness of the glaze layer 30 is, the better the scratch resistance of the obtained casing 100 is.

In some embodiments, the range of roughness Ra of the glaze layer 30 away from the surface 31 of the ceramic housing body 10 is 0.1 μm≤Ra≤0.5 μm. Specifically, the roughness Ra of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 may be, but not limited to, 0.1 μm, 0.15 μm, 0.2 μm, 0.25 μm, 0.3 μm, 0.35 μm, 0.4 μm, 0.45 μm , 0.5μm, etc. The greater the roughness of the surface 31 of the glaze layer 30 away from the ceramic housing body 10, the greater the reflective surface 331 formed on the textured portion 33, the larger the glitter particles formed, and the stronger the glitter effect. When the roughness is greater, the glaze The scratching feel of the surface 31 of the layer 30 away from the ceramic housing body 10 is enhanced, and when the roughness of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 is greater than 0.5 μm, the surface of the glaze layer 30 away from the ceramic housing body 10 will be reduced. The skin-friendly feeling of 31 reduces the comfort of holding the glaze layer 30 away from the surface 31 of the ceramic housing body 10 . When the roughness of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 is less than 0.1 μm, the size of the textured portion 33 is small, which reduces the sparkle effect on the surface of the housing 100 . When the roughness of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 ranges from 0.1 μm to 0.5 μm, the texture portion 33 may have a sufficient size to form a high-shine surface on the surface of the housing 100 At the same time, the matte effect can make the surface of the glaze layer 30 have a better hand feeling.

In some embodiments, the gloss G (60° angle test) of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 is in the range 110Gu≤G≤150Gu. Specifically, the gloss G of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 may be, but not limited to, 110Gu, 115Gu, 120Gu, 125Gu, 130Gu, 135Gu, 140Gu, 145Gu, 150Gu, etc. When the gloss of the surface 31 of the glaze layer 30 away from the ceramic shell body 10 is too low (for example, lower than 110Gu), the gloss on the surface of the shell 100 is not obvious, which affects the texture of the shell 100. When the glaze layer 30 is far away from the ceramic shell When the glossiness of the surface 31 of the body body 10 is too high (for example, higher than 150Gu), the cost of the glaze layer 30 away from the surface 31 of the ceramic housing body 10 and the difficulty of preparation will be increased, thereby improving the glossiness of the housing 100. preparation cost. When the gloss G of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 is 110 Gu to 150 Gu, the surface of the housing 100 has good gloss and is easy to manufacture.

Optionally, the textured portion 33 has a plurality of reflective surfaces 331 , and the reflective surfaces 331 have a reflection effect on light, so that the surface of the glaze layer 30 away from the ceramic housing body 10 has a flashing effect.

Optionally, the reflective surface 331 may be a plane. In other embodiments, the reflective surface 331 may also be an arc surface. When the reflective surface 331 is a plane, the reflective surface 331 has the same reflection direction for light incident in the same direction (i.e. forms specular reflection), which can make the brightness of the flash point of the obtained housing 100 higher, or the flash pattern with higher brightness. When the reflective surface 331 is an arc surface, the arc surface has more reflection angles, which can increase the viewing angle of the flash point of the casing 100 .

Optionally, the textured portion 33 may be a convex structure (as shown in FIG. 3 ), or a concave structure (as shown in FIGS. 2 and 4 ). When the texture part 33 is a concave structure, compared with a convex structure, the surface of the glaze layer 30 of the housing 100 can be made smoother and has a better hand feeling, so that the manufactured housing 100 has a better hand feeling. slip.

The "protruding structure" refers to the part of the glaze layer 30 protruding from the surface 31 of the glaze layer 30 away from the ceramic housing body 10 based on the surface 31 of the glaze layer 30 away from the ceramic housing body 10 . The "recessed structure" refers to the part of the glaze layer 30 that is recessed on the surface 31 of the glaze layer 30 away from the ceramic housing body 10 based on the surface 31 of the glaze layer 30 away from the ceramic housing body 10 .

Optionally, the plurality of textured parts 33 are arranged periodically, randomly or gradually. The term "periodically arranged" in this application means that multiple components are arranged cyclically in space according to a certain regularity. When the plurality of textured parts 33 are arranged periodically, the surface 31 of the glaze layer 30 of the housing 100 away from the ceramic housing body 10 can form a periodic flashing pattern. When the plurality of textured parts 33 are arranged in a gradual manner, the glaze layer 30 of the housing 100 can form a gradual pattern away from the surface 31 of the ceramic housing body 10 , and the glaze layer 30 is far away from the surface 31 of the ceramic housing body 10 The brightness of the texture portion 33 will gradually change with the size of the texture portion 33 to form a gradual brightness. The gradual change method can be a gradual change in size or density from one side to the other, or a gradual change in size or density along the radial direction, and can be specifically designed according to needs.

Please refer to FIG. 5 , in a specific embodiment, a plurality of textured parts 33 form a textured unit 33a, and the plurality of textured units 33a are arranged (such as arranged at intervals) on the glaze layer 30 according to a preset rule and away from the ceramic housing body 10 on the surface 31 of the ceramic housing body 10 so that the surface 31 of the glaze layer 30 away from the ceramic housing body 10 presents a periodic flashing pattern. In the embodiment of FIG. 5, each texture unit 33a is composed of 14 textured parts 33 arranged at intervals in a circular array, and a plurality of texture units 33a are arranged at equal intervals, so that the glaze layer 30 of the housing 100 is far away from the ceramic housing body. The surface 31 of 10 may present a circle of circular flashing patterns.

Please refer to FIG. 5 and FIG. 6 , in some embodiments, the texture portion 33 may be at least one of point texture (as shown in FIG. 5 ) and line texture (as shown in FIG. 6 ). The size, shape, orientation, etc. of the plurality of textured parts 33 may be the same or different. In this way, the size, shape, orientation, etc. of the textured portion 33 can be designed so that the casing 100 has different shapes and patterns of flashing effects.

As shown in FIG. 5 , in some embodiments, the texture portion 33 is a dot-like texture. At this time, the texture portion 33 can be a dot-like depression structure or a dot-like protrusion structure one by one. When the texture portion 33 is When the dot-like texture is used, individual flash points can be formed on the surface of the glaze layer 30 , thereby forming a granular high-shine effect on the surface 31 of the glaze layer 30 away from the ceramic housing body 10 . In addition, each dot-shaped texture portion 33 can also be arranged according to a preset rule, such as periodic arrangement, so as to form a flashing effect of a specific periodic shape, such as a snowflake shape, a heart shape, and the like.

In some embodiments, the textured portion 33 is a raised structure, and the textured portion 33 includes at least one of a pyramid or a truncated pyramid. In some embodiments, the pyramids include one or more of triangular pyramids, quadrangular pyramids, pentagonal pyramids, hexagonal pyramids, heptagonal pyramids, octagonal pyramids, and star-shaped pyramids; One or more of a platform, a five-sided platform, a six-sided platform, a seven-sided platform, an eight-sided platform, and a star-shaped platform.

In other embodiments, when the textured portion 33 is a concave structure, the textured portion 33 includes at least one of an inverted pyramid, an inverted pyramid, or a linear concave structure; the inverted pyramid includes an inverted triangular pyramid, One or more of inverted quadrangular pyramids, inverted pentagonal pyramids, inverted hexagonal pyramids, inverted heptagonal pyramids, inverted octagonal pyramids, and inverted star-shaped pyramids; the inverted pyramids include inverted triangular pyramids, inverted quadrangular pyramids, inverted five One or more of prisms, inverted hexagonal prisms, inverted heptagonal prisms, inverted octagonal prisms, and inverted star-shaped prisms. "Inverted pyramid" refers to an upside-down pyramid, or a structure in which the base of the pyramid is upward compared to the apex. "Chamfered truss" refers to an inverted truss, or a structure in which the upper and lower bottom surfaces of the truss exchange positions.

The more surfaces of pyramids, truncated pyramids, inverted pyramids or truncated pyramids, the greater the number of reflective surfaces 331 on the same textured portion 33, and the more directions in which light is reflected, which can make more directions of the housing 100 You can see the flash effect. In addition, by adjusting the orientation of the textured portion 33 , multiple textured portions 33 have multiple different orientations, which can also increase the direction in which the light is reflected and improve the viewing angle of the flash. By forming textured portions 33 in the shape of pyramids, truncated pyramids, inverted pyramids, or inverted truncated pyramids on the surface of the glaze layer 30 , the housing 100 can have a good sparkle effect and be easy to manufacture.

As shown in Figure 6, in some other embodiments, the texture part 33 is a linear texture, which can be at least one of a linear concave structure and a linear convex structure, and the linear texture can be preset Regular extension, such as forming spiral circles, animal patterns, etc., so that the surface of the glaze layer 30 has a flashing effect of a preset pattern.

Please refer to FIG. 4 and FIG. 5 again. In some embodiments, the number of reflective surfaces 331 of each textured portion 33 is multiple, and the orientations of multiple reflective surfaces 331 of the same textured portion 33 are different from each other. , at least part of the reflective surfaces 331 of at least part of the textured portion 33 have the same orientation. The orientations of multiple reflective surfaces 331 of the same textured part 33 are different from each other, so that light can be reflected in different directions in the reflective part, so that the flashing effect can be seen in multiple directions. When the casing 100 is rotated in a different direction, different positions can be seen to have sparkling effects. At least some of the reflective surfaces 331 of at least some of the textured parts 33 have the same orientation, and at least some of the textured parts 33 in the multiple textured parts 33 reflect light in the same direction, so that multiple textured parts 33 can be seen in the same direction Composed of dots or preset flash pattern effects. Thus, when the housing 100 changes angles, it is possible to continuously observe flashing points or flashing patterns at different angles.

Please refer to FIG. 7 and FIG. 8 , in some embodiments, the reflective surface 331 is a plane, and the range of the angle α between the reflective surface 331 and the surface 31 of the glaze layer 30 away from the ceramic housing body 10 is 30°. ≤α≤60°. Specifically, it may be, but not limited to, 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc. If the angle between the reflective surface 331 and the surface 31 of the glaze layer 30 away from the ceramic housing body 10 is too large or too small, the viewing angle of the light from the textured portion 33 will be reduced. In this embodiment, when the angle α between the reflective surface 331 and the surface 31 of the glaze layer 30 away from the ceramic housing body 10 is between 30° and 60°, the reflected light of the reflective surface 331 The angle is closer to the habitual angle when the human eye observes the housing 100 , so that it is easier to observe the flashing effect.

In some embodiments, along a direction perpendicular to the glaze layer 30 away from the surface 31 of the ceramic housing body 10 , the maximum height or depth h of the textured portion 33 is in the range of 40 μm≤h≤180 μm. In other words, along the stacking direction of the ceramic shell body 10 and the glaze layer 30 , the maximum height or depth h of the textured portion 33 is in the range of 40 μm≤h≤180 μm. When the texture part 33 is a convex structure, the range of the maximum height h of the texture part 33 is 40 μm≤h≤180 μm; when the texture part 33 is a concave structure, the range of the maximum depth h of the texture part 33 is 40 μm ≤h≤180μm. Specifically, h can be, but not limited to, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, etc. When h is less than 40 μm, the reflective surface 331 on the textured portion 33 is small, which reduces the brightness of the flashlight of the casing 100. In addition, the angle of the reflective surface is small, which affects the viewing angle of the flashlight. When h is greater than 180 μm, the step difference between the glaze layer 30 and the surface 31 of the ceramic housing body 10 is relatively large, and the scratching feeling is enhanced, which affects the hand feeling of the housing 100. In addition, the thickness and weight of the glaze layer 30 will be increased to improve the housing quality. The thickness and weight of the body 100 are unfavorable for making the casing 100 lighter and thinner. When h is in the range of 40 μm to 180 μm, the texture portion 33 can not only have a brighter sparkle, but also have a better hand feeling, lighter weight and thinner thickness.

In some embodiments, the texture portion 33 is a dotted texture, and the range of the longest distance w1 of the area surrounded by the orthographic projection of the glaze layer 30 away from the surface 31 of the ceramic housing body 10 of the texture portion 33 is 120 μm≤w1≤200 μm; in other words, the maximum length of the textured part 33 is in the range of 120 μm≤w1≤200 μm. Specifically, w1 may be, but not limited to, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, 200 μm and the like. When the size of the textured part 33 is less than 120 μm, the textured part 33 is difficult to see with the naked eye, and at this time the area of each reflective surface 331 of the textured part 33 is small, and the reflective effect of the textured part 33 is weakened, thereby making the casing 100 shine. Weaken, when the size of the texture portion 33 is greater than 200 μm, it is easy to form larger block-shaped flashing blocks, affecting the flashing effect on the surface of the housing 100, and increasing the roughness of the surface 31 of the glaze layer 30 away from the ceramic housing body 10, The hand feeling of the housing 100 is reduced.

In some embodiments, when the textured portion 33 is a point texture, the shortest distance s between any two adjacent textured portions 33 is within a range of 100 μm≤s≤500 μm. Specifically, s may be, but not limited to, 100 μm, 150 μm, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm, 450 μm, 500 μm and the like. When s is greater than 500 μm, the distance of the formed flash points is relatively long, which affects the visual effect of the flash. When s is smaller than 100 μm, the textures 33 are too dense, resulting in high brightness, which also affects the visual effect of the casing 100 . When s is in the range of 100 μm to 500 μm, it is possible to form dense and practical flash points, so that the casing 100 has a better star-point flash effect.

Please refer to FIG. 6 again. In some other embodiments, when the textured portion 33 is a linear texture, the textured portion 33 is surrounded by the orthographic projection of the surface 31 of the glaze layer 30 away from the ceramic housing body 10 The range of the shortest distance w2 of the region is 120 μm≦w2≦200 μm. In other words, the line width of the textured portion 33 is in the range of 120 μm≦w2≦200 μm. Specifically, w2 may be, but not limited to, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, 200 μm and the like. When the line width of the textured portion 33 is less than 120 μm, the textured portion 33 is difficult to see with the naked eye, and at this time the area of each reflective surface 331 of the textured portion 33 is small, and the reflective effect of the textured portion 33 is weakened, so that the housing 100 The flash is weakened. When the line width of the texture part 33 is greater than 200 μm, it is easy to form larger strips of flash, which affects the flash effect on the surface of the shell 100, and increases the roughness of the surface 31 of the glaze layer 30 away from the ceramic shell body 10 degree, reducing the feel of the housing 100.

Please refer to Fig. 4 again, in a specific embodiment, the texture portion 33 is a concave structure, the texture portion 33 is an inverted triangular pyramid, and the bottom surface of the inverted triangular pyramid is an equilateral triangle (that is, the inverted triangular pyramid and the glaze layer 30 are away from the ceramic shell The surface 31 of the main body 10 is parallel to the surface), the side length w1 of the bottom surface is 180 μm, and the height h of the inverted triangular pyramid (ie, the depth of the concave structure) is 50 μm.

In another specific embodiment, in a specific embodiment, the texture portion 33 is a concave structure, the texture portion 33 is an inverted triangular pyramid, and the bottom surface of the inverted triangular pyramid is an equilateral triangle (that is, the inverted triangular pyramid and the glaze layer 30 are away from the ceramics. The surface 31 of the shell body 10 is parallel to the surface), the side length w1 of the bottom surface is 200 μm, and the height h of the inverted triangular pyramid (ie, the depth of the concave structure) is 65 μm.

In some other embodiments, in another specific embodiment, in a specific embodiment, the textured part 33 is a concave structure, and the textured part 33 includes a variety of inverted triangular pyramids with unusual sizes, and the bottom surface of each inverted triangular pyramid All are equilateral triangles (i.e. the plane parallel to the surface 31 of the inverted triangular pyramid and the glaze layer 30 away from the ceramic housing body 10), the side length w1 of the bottom surface is 180 μm to 200 μm, and the height h of the inverted triangular pyramid (i.e. the depth of the concave structure ) is 50 μm to 65 μm. In this way, the surface of the housing 100 can have flash points of different sizes at the same time.

The shell 100 of the embodiment of the present application can be prepared by the method described in the following examples of the present application. In addition, it can also be prepared by other methods. The preparation method of the embodiment of the present application is only a kind of preparation of the shell 100 of the present application. The method should not be understood as a limitation to the housing 100 provided in the embodiment of the present application.

Please refer to FIG. 9 , the embodiment of the present application also provides a method for preparing the casing 100, which includes:

S201, prepare the ceramic shell body 10;

S202, forming a glaze layer 30 on the surface of the ceramic housing body 10, and forming the plurality of textured parts 33 on the surface of the glaze layer 30 away from the ceramic housing body 10, and the plurality of textured parts 33 according to a predetermined If arranged regularly, the textured parts 33 can reflect light, so that the casing 100 has a flashing effect.

For the description of the same features of this embodiment and the above embodiment, please refer to the description of the corresponding part of the above embodiment, and details are not repeated here.

The preparation method of the present application forms a glaze layer 30 on the surface of the ceramic housing body 10, and forms the plurality of textured parts 33 on the surface of the glaze layer 30 away from the ceramic housing body 10, and the plurality of textured parts 33 are arranged according to a preset rule, and the textured portion 33 can reflect light, so that the casing 100 has a flashing effect. The position on the glaze layer 30 where the textured part 33 is not provided is matte, thus, through the design of the shape, size and arrangement of the textured part 33, it is possible to form a high-shine granular or linear pattern on the surface of the housing 100. and other flashing patterns of different shapes, so that the flashing structure on the surface of the housing 100 can be designed, and the graphics, size, and arrangement can be designed according to the needs, and various patterns and effects can be obtained, which can better meet the needs of users. demand.

Please refer to FIG. 10 , in some embodiments, the preparation of the ceramic housing body 10 includes:

S2011, mixing the ceramic powder with a binder and granulating to obtain pellets;

Specifically, the ceramic powder and the binder are respectively weighed according to a preset weight ratio, the ceramic powder and the binder are uniformly mixed, and granulated by granulation equipment to obtain granules. For a detailed description of the ceramic powder, please refer to the description of the corresponding part of the above embodiment, and will not be repeated here. When the raw material components of the ceramic shell body 10 also include dispersants, colorants, etc., before granulation, the preparation method also includes mixing the dispersants, colorants, etc. with the ceramic powder and the binder.

Optionally, the mesh number of the pellets ranges from 40 mesh to 100 mesh. Specifically, the mesh size of the pellets may be, but not limited to, 40 mesh, 50 mesh, 60 mesh, 70 mesh, 80 mesh, 90 mesh, 100 mesh and the like. In other words, the particle size of the pellets ranges from 150 μm to 380 μm; specifically, the particle size of the pellets can be, but not limited to, 150 μm, 180 μm, 200 μm, 220 μm, 250 μm, 280 μm, 300 μm, 330 μm, 350 μm, 380 μm, etc. The particle size of the granules is too small, which increases the difficulty of preparation and thus increases the cost. When the particle size of the granules is as small as nanometers, the granules are easy to agglomerate to form large particles, which will reduce the mechanical strength of the prepared shell; When the particle size of the material is too large, such as greater than 0.8 μm, gaps and air bubbles are likely to remain during green molding, and the mechanical strength of the manufactured shell will also be reduced. Therefore, when the particle size of the granules is in the range of 0.2 μm to 0.8 μm, the prepared shell can not only have better mechanical strength, but also have lower production cost.

Optionally, the BET specific surface area of the pellets is 6m ² /g to 10m ² /g. Specifically, the BET specific surface area of the pellets may be, but not limited to, 6m ² /g, 6.5m ² /g, 7m ² /g, 7.5m ² /g, 8m ² /g, 8.5m ² /g, 9m ² /g, ^{9.5m 2} /g, 10m ² /g, etc. The larger the specific surface area, the smaller the pellets, and the pellets are easy to agglomerate to form large particles, which will reduce the mechanical strength of the shell produced; the smaller the specific surface area, the larger the pellets, and it is easy to leave gaps and gaps during green molding. Air bubbles also reduce the mechanical strength of the shell produced.

Optionally, in the pellets, the weight percentage of the binder is in the range of 3% to 5%. For the detailed description of the ceramic powder and the binder, please refer to the description of the corresponding part of the above embodiment.

S2012, molding with the pellets to obtain a green body; and

Optionally, the pellets are used for molding by at least one of molding processes such as compression molding, injection molding, tape casting, etc., to obtain the green body.

In a specific embodiment, molding is carried out by a compression molding process, and the molding is carried out by using the pellets to obtain a green body, which includes: performing compression molding at room temperature with a molding pressure ranging from 10MPa to 15MPa, and keeping Press for 10s to 20s to obtain a green body.

Optionally, the compression molding pressure ranges from 10MPa, 11MPa, 12MPa, 13MPa, 14MPa, 15MPa and so on. If the molding pressure is too small, it will affect the compactness of the obtained green body, and even cannot become a green body with a complete shape. The greater the molding pressure, the denser the green body will be, which will help improve the mechanical properties of the ceramic shell body 10 produced. For performance, however, the pressure of molding is too high, which raises the requirements of the equipment.

Optionally, the pressure holding time may be 10s, 12s, 14s, 16s, 18s, 20s, etc. The longer the pressure holding time, the better the compactness and molding condition of the formed green body, but the pressure holding time is too long, which affects the production efficiency.

In some other embodiments, the pellets can also be placed in an injection molding machine to produce a green body by injection molding.

In some other embodiments, the raw material components of the ceramic shell body 10 are mixed to form a slurry, and tape casting is performed using a tape casting machine to obtain a green body. It should be noted that granulation is not required when tape casting is used to prepare a green body.

S2013, debinding the green body and performing second sintering to obtain the ceramic housing body 10 .

Optionally, under normal pressure, gradually raise the temperature of the green body to 800°C to 950°C for debinding, and the debinding time ranges from 2h to 3h, so that the binder in the green body can be volatilized or decomposition; when the raw material components of the shell also include a dispersant, the dispersant will also decompose or volatilize during debinding, thereby eliminating; then gradually increase the temperature to 1350°C to 1500°C for the second sintering, The time for the second sintering ranges from 8 hours to 10 hours; finally, the temperature is slowly lowered to room temperature to obtain the ceramic shell body 10 . It should be noted that the debinding time and the second sintering time do not include the time required for heating up and cooling down.

Optionally, the debinding temperature is 800°C to 950°C, specifically, but not limited to, 800°C, 820°C, 840°C, 860°C, 880°C, 900°C, 920°C, 940°C, 950°C etc. If the temperature of debinding is too low, the adhesive removal time will be too long, which will affect the production efficiency, and even cannot be completely removed. It is easy to leave pores on the ceramic shell body 10 during sintering, which will affect the mechanical properties of the obtained shell 100. strength, the debinding temperature is too high, the adhesive decomposes or volatilizes too violently, and air bubbles are likely to remain in the green body, which affects the mechanical strength of the ceramic shell body 10. In addition, the debinding temperature is too high, and the ceramic may be overheated. Early crystallization will also reduce the mechanical strength of the ceramic shell body 10 .

Optionally, the debinding time is 2h to 3h, specifically, but not limited to, 120min, 130min, 140min, 150min, 160min, 170min, 180min, etc. If the deglue time is too short, the degumming will be incomplete, and air bubbles may remain in the prepared ceramic shell body 10 . If the degumming time is too short, the production efficiency will be affected.

Optionally, the second sintering temperature ranges from 1350°C to 1500°C; specifically, but not limited to, it may be 1350°C, 1380°C, 1400°C, 1420°C, 1450°C, 1480°C, 1500°C, etc. If the temperature of the second sintering is too low, the ceramic shell body 10 will not become porcelain; if the temperature of the second sintering is too high, it will easily cause over-firing, which will affect the mechanical strength of the prepared ceramic shell body 10 .

Optionally, the second sintering time ranges from 8h to 10h; specifically, it may be, but not limited to, 8h, 8.5h, 9h, 9.5h, 10h and so on. If the sintering time of the green body is too long, it is easy to cause the ceramic grains to grow too large, which is not conducive to improving the mechanical strength of the shell. If the sintering time of the green body is too short, the compactness between the ceramic powders is not enough, and it is easy to have insufficient porcelain formation. , will also affect the mechanical strength of the shell produced.

Please refer to FIG. 11 , in some embodiments, the preparation of the ceramic housing body 10 includes:

S2011a, mixing the ceramic powder with a binder and granulating to obtain pellets;

S2012a, molding with the pellets to obtain a green body;

S2013a, debinding the green body, and performing a second sintering; and

For the detailed description of S2011a to S2013a, please refer to the description of the corresponding part of the foregoing embodiment, and details are not repeated here.

S2014a, perform mechanical processing (CNC processing) and first polishing to obtain the ceramic housing body 10 .

Optionally, the surface of the sintered sample is machined, and then ground and polished (that is, first polished) to obtain the ceramic shell body 10 in a high-gloss state.

Optionally, the roughness Ra' of the ceramic shell body 10 ranges from 5nm to 25nm, specifically, but not limited to 5nm, 8nm, 10nm, 13nm, 15nm, 18nm, 20nm, 23nm, 25nm, etc. . The lower the roughness of the surface of the ceramic housing body 10, the higher the processing cost. When the surface roughness of the ceramic housing body 10 is as low as 5nm, the surface of the ceramic housing body 10 has reached a high-gloss mirror surface, and further polishing will increase Cost, when the surface roughness of the ceramic housing body 10 is greater than 25nm, at this time, the surface of the ceramic housing body 10 cannot meet the requirements of a high-gloss mirror surface, which is not conducive to controlling the thickness of the glaze layer 30 .

Optionally, the glossiness (60° angle test) of the surface of the ceramic housing body 10 is 130Gu to 160Gu. Specifically, the glossiness of the ceramic housing body 10 may be, but not limited to, 130Gu, 135Gu, 140Gu, 145Gu, 150Gu, 155Gu, 160Gu and so on.

In some embodiments, in S202, a glaze layer 30 is formed on the surface of the ceramic housing body 10, and a plurality of textured parts 33 are formed on the surface 31 of the glaze layer 30 away from the ceramic housing body 10; including:

A glaze layer is formed on the surface of the ceramic housing body 10, and a plurality of textured parts 33 are formed on the surface of the glaze layer away from the ceramic housing body 10; and

The first firing is performed so that the glaze layer forms the glaze layer 30 . Specifically, it includes: performing first sintering at 1000° C. to 1200° C., the time of the first sintering ranges from 3 hours to 5 hours, so that the glaze layer forms the glaze layer 30 .

In some embodiments, the temperature of the first sintering is lower than the temperature of the second sintering. Further, the temperature of the first sintering is 150°C to 300°C lower than the temperature of the second sintering. In this way, the glaze can be fully vitrified and colored, and the secondary crystallization of the ceramic shell body can be avoided, which will affect the mechanical strength of the shell.

Optionally, the first sintering temperature is 1000°C to 1200°C, specifically, but not limited to 1000°C, 1020°C, 1040°C, 1060°C, 1080°C, 1100°C, 1120°C, 1140°C , 1180°C, 1200°C, etc. When the temperature of glaze sintering (that is, the first sintering) is too low (such as lower than 1000°C), the vitrification of the glaze is not enough, and the color is not bright enough; when the temperature of glaze sintering is higher than 1200°C, it is close to the sintering of ceramics. temperature, it is easy for the crystal of the ceramic shell body to undergo secondary growth, which is not conducive to improving the strength of the ceramic shell body. When the temperature of the first sintering is 1000° C. to 1200° C., the glaze can be fully vitrified and colored, and secondary crystallization of the ceramic shell body can be avoided, which affects the mechanical strength of the shell.

Optionally, the first sintering time is 3h to 5h, specifically, but not limited to, 3h, 3.5h, 4h, 4.5h, 5h and so on. If the first sintering time is too long (for example, greater than 5 hours), the glaze will be over-fired and blackened; if the first sintering time is too short (for example, less than 3 hours), the glaze will not be vitrified enough and the color will not be bright enough.

Please refer to FIG. 12 and FIG. 13 , the embodiment of the present application also provides a method for preparing the casing 100, which includes:

S301, preparing the ceramic shell body 10;

For detailed description, please refer to the description of the corresponding part of the foregoing embodiments, and details are not repeated here.

S302, forming a glaze layer on the surface of the ceramic housing body 10, and printing a plurality of textured parts 33 on the surface of the glaze layer away from the ceramic housing body 10; and

Optionally, a glaze layer is formed on the surface of the ceramic housing body 10 by means of spraying, flow coating, printing, brushing and the like using glaze. The textured surface of the texture mold 100' is pressed against the glaze layer, and after demoulding, the surface of the glaze layer away from the ceramic housing body 10 forms a plurality of textured parts 33.

Optionally, the glaze may be, but not limited to, a low-temperature sintered glaze, for example, a glaze with a sintering temperature of 1000°C to 1200°C.

Please refer to FIG. 14 , the texture mold 100' includes a laminated base layer 10' and a texture layer 30', the texture layer 30' has a texture structure away from the surface, and the texture structure is mirror-symmetrical to the texture part 33. When the texture part 33 is a concave structure, the texture structure is a convex structure; when the texture part 33 is a convex structure, the texture structure is a concave structure. In a specific embodiment, the texture portion 33 is an inverted triangular pyramid, and the texture structure is a triangular pyramid.

Please refer to FIG. 15 , in some embodiments, the texture mold 100 ′ further includes a release layer 50 ′, and the release layer 50 ′ is disposed on the surface of the texture layer 30 ′ away from the substrate layer 10 ′. The release layer 50' is used to prevent the glaze from adhering to the textured mold 100' when the textured mold 100' is demolded, so that the textured mold 100' can be better demoulded. In a specific embodiment, the release layer 50' is an anti-fingerprint layer, and the water contact angle of the release layer 50' is greater than or equal to 105°, so that the release layer 50' has good hydrophobicity, which is beneficial to Demolding of the textured mold 100'.

Optionally, the raw material components of the release layer 50' may include, but are not limited to, one or more of perfluoropolyether, perfluoropolyether derivatives, and the like. Perfluoropolyether and perfluoropolyether derivatives have excellent hydrophobic properties, which can enable the textured mold 100' to be better demolded and avoid damage to the surface structure of the glaze layer during the demoulding process.

S303, perform the first sintering, so that the glaze layer forms a glaze layer 30, the surface of the glaze layer 30 away from the ceramic housing body 10 has the plurality of textured parts 33, and the plurality of textured parts 33 If arranged regularly, the textured part 33 can reflect light, so that the casing 100 has a flashing effect; and

For a detailed description of this step, please refer to the description of the corresponding part of the foregoing embodiment, and details are not repeated here.

S304 , performing a second polishing in the polishing solution to obtain the casing 100 .

Optionally, the sintered product in step S303 is placed in a 3D polishing device and put into a polishing solution for a second polishing, so as to make the surface of the glaze layer 30 smoother, so as to improve the gloss and feel of the surface of the shell 100 produced .

Optionally, the polishing liquid may be, but not limited to, at least one of silicon dioxide polishing liquid, alumina polishing liquid, cerium oxide polishing liquid and the like.

Optionally, the polishing solution is alkaline. When the polishing liquid is acidic, it is easy to cause corrosion to the processing equipment. Therefore, an alkaline polishing liquid should be used.

In some embodiments, the pH value of the polishing liquid is 9 to 12; specifically, it may be but not limited to 9, 10, 11, 12 and so on. If the pH value of the polishing solution is too low and the alkalinity is too small, the micro-corrosion of the glaze layer surface during the polishing process will not be enough, and it will be difficult to quickly achieve a high-gloss mirror effect. The pH value of the polishing liquid is too high and the alkalinity is too strong, which increases the risk of operation.

Optionally, the polishing liquid includes polishing particles, which may be but not limited to at least one of silicon dioxide particles, aluminum oxide particles, cerium oxide particles and the like. The use of these polishing particles can make the surface of the obtained glaze layer have better glossiness and better hand feeling.

Optionally, the average particle size of the polishing particles ranges from 80nm to 120nm, specifically, but not limited to, 80nm, 85nm, 90nm, 95nm, 100nm, 105nm, 110nm, 115nm, 120nm, etc. If the polishing particles are too small, the polishing efficiency will be low; if the polishing particles are too high, it will be difficult to achieve a high mirror polishing effect. When the average particle size of the polishing particles ranges from 80nm to 120nm, it can not only have a good mirror polishing effect, but also have a good polishing efficiency.

In a specific embodiment, the polishing liquid is a silicon dioxide polishing liquid, the polishing particles are silicon dioxide, the average particle diameter of the silicon dioxide is 80 nm to 120 nm, and the pH value of the silicon dioxide polishing liquid is 9 to 12.

For a detailed description of the same features of this embodiment and the above embodiment, please refer to the above embodiment, and details are not repeated here.

Referring to FIG. 16 and FIG. 17 , the embodiment of the present application further provides an electronic device 400 , which includes: a display assembly 410 , the housing 100 described in the embodiment of the present application, and a circuit board assembly 430 . The display assembly 410 is used for displaying; the casing 100 is arranged on one side of the display assembly 410; the circuit board assembly 430 is arranged between the display assembly 410 and the casing 100, and is connected to the The display component 410 is electrically connected to control the display component 410 to display.

The electronic device 400 in the embodiment of the present application may be, but not limited to, portable electronic devices such as mobile phones, tablet computers, notebook computers, desktop computers, smart bracelets, smart watches, e-readers, and game consoles.

For the detailed description of the housing 100, please refer to the description of the corresponding part of the above embodiment, and details are not repeated here.

Optionally, the display component 410 may be, but not limited to, a liquid crystal display component, a light emitting diode display component (LED display component), a micro light emitting diode display component (Micro LED display component), a submillimeter light emitting diode display component (Mini LED One or more of display components), organic light emitting diode display components (OLED display components), and the like.

Please also refer to FIG. 17 , optionally, the circuit board assembly 430 may include a processor 431 and a memory 433 . The processor 431 is electrically connected to the display component 410 and the memory 433 respectively. The processor 431 is used to control the display component 410 to display, and the memory 433 is used to store the program code required for the operation of the processor 431, control the program code required by the display component 410, and display the display component 410. content etc.

Optionally, the processor 431 includes one or more general-purpose processors 431, wherein the general-purpose processor 431 may be any type of device capable of processing electronic instructions, including a central processing unit (Central Processing Unit, CPU), a microprocessor , microcontrollers, main processors, controllers, and ASICs, etc. The processor 431 is used to execute various types of digitally stored instructions, such as software or firmware programs stored in the memory 433, which enable the computing device to provide a wide variety of services.

Optionally, the memory 433 can include a volatile memory (Volatile Memory), such as a Random Access Memory (Random Access Memory, RAM); the memory 433 can also include a non-volatile memory (Non-Volatile Memory, NVM), such as Read-only memory (Read-Only Memory, ROM), flash memory (Flash Memory, FM), hard disk (Hard Disk Drive, HDD) or solid-state drive (Solid-State Drive, SSD). The memory 433 may also include a combination of the above-mentioned kinds of memories.

Please refer to FIG. 18 and FIG. 19 , in some embodiments, the electronic device 400 of the embodiment of the present application further includes a middle frame 420 and a camera module 450 , and the middle frame 420 is arranged between the display component 410 and the casing 100 Between, and the sides of the middle frame 420 are exposed from the casing 100 and the display assembly 410 . The middle frame 420 and the casing 100 form an accommodating space, and the accommodating space is used for accommodating the circuit board assembly 430 and the camera module 450 . The camera module 450 is electrically connected to the processor 431 for taking pictures under the control of the processor 431 .

Optionally, the casing 100 has a light-transmitting portion 101, and the camera module 450 can take pictures through the light-transmitting portion 101 on the casing 100, that is, the camera module 450 in this embodiment is a rear Set camera module 450. It can be understood that, in other implementation manners, the light-transmitting portion 101 may be disposed on the display assembly 410 , that is, the camera module 450 is a front-facing camera module 450 . In the schematic diagram of this embodiment, the light-transmitting portion 101 is used as an opening for illustration. In other embodiments, the light-transmitting portion 101 may not be an opening, but a light-transmitting material, such as plastic, glass, etc. .

It can be understood that the electronic device 400 described in this embodiment is only a form of the electronic device 400 applied to the housing 100, and should not be construed as a limitation on the electronic device 400 provided in this application, nor should it be understood This is the definition of the housing 100 provided in various embodiments of the present application.

References in this application to "an embodiment" and "an implementation" mean that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of a phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the various embodiments of the present application can be combined arbitrarily without departing from the spirit and scope of the technical solution of the present application if there is no contradiction between them. the embodiment.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application rather than limit them. Although the present application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be The modification or equivalent replacement of the scheme shall not deviate from the spirit and scope of the technical scheme of the present application.

Claims

A casing, characterized in that it comprises:

the ceramic housing body; and

A glaze layer, the glaze layer is arranged on one side of the ceramic shell body, the glaze layer has a plurality of textured parts, and the plurality of textured parts are arranged on the glaze layer away from the ceramic according to a preset rule On the surface of the shell body, the textured portion can reflect light, so that the shell has a flashing effect.
The casing according to claim 1, wherein the textured portion has a plurality of reflective surfaces, the orientations of the multiple reflective surfaces of the same textured portion are different from each other, and at least part of the reflective surfaces of at least a part of the textured portion of the same orientation.
The housing according to claim 1, wherein the range of roughness Ra of the glaze layer away from the ceramic housing body is 0.1 μm≤Ra≤0.5 μm.
The casing according to claim 3, wherein the glossiness G of the surface of the glaze layer away from the ceramic casing body is in the range of 110Gu≤G≤150Gu.
The casing according to claim 1, wherein the textured part is at least one of dotted texture and linear textured, and when the textured part is dotted textured, the textured part is in the The range of the longest distance w1 of the area surrounded by the orthographic projection of the glaze layer away from the surface of the ceramic shell body is 120μm≤w1≤200μm; when the texture part is a linear texture, the texture part is far away from the glaze layer The range of the shortest distance w2 of the area surrounded by the orthographic projection of the surface of the ceramic housing body is 120 μm≤w2≤200 μm.
The casing according to claim 5, wherein when the textured portion is a convex structure, along the direction perpendicular to the surface of the glaze layer, the maximum height h of the textured portion is in the range of 40 μm≤h ≤180 μm; when the texture portion is a concave structure, along the direction perpendicular to the surface of the glaze layer, the maximum depth h of the texture portion is in the range of 40 μm≤h≤180 μm.
The housing according to claim 5, wherein when the textured portion is a point texture, the shortest distance s between any two adjacent textured portions is in the range of 100 μm≤s≤500 μm.
The casing according to claim 1, wherein the textured portion is at least one of a convex structure and a concave structure, the textured portion includes a reflective surface, and the reflective surface is a plane; the reflective surface The range of the angle α between the glaze layer and the surface away from the ceramic housing body is 30°≤α≤60°.
The casing according to claim 8, wherein when the textured portion is a raised structure, the textured portion includes at least one of a pyramid, a prism, or a linear raised structure; when the textured portion When the part is a concave structure, the texture part includes at least one of an inverted pyramid, an inverted pyramid or a linear concave structure; One or more of star-shaped pyramids; the prism includes one or more of triangular prisms, four prisms, five prisms, six prisms, seven prisms, eight prisms, and star prisms The inverted pyramids include one or more of inverted triangular pyramids, inverted quadrangular pyramids, inverted pentagonal pyramids, inverted hexagonal pyramids, inverted heptagonal pyramids, inverted octagonal pyramids, and inverted star-shaped pyramids; the inverted pyramids include inverted three One or more of prisms, inverted quadrangular prisms, inverted pentagonal prisms, inverted hexagonal prisms, inverted seven-prism prisms, inverted octagonal prisms, and inverted star-shaped prisms.
The housing according to claim 1, wherein the raw material components of the ceramic housing body include ceramic powder, and the range of the average particle diameter d of the ceramic powder is 0.2 μm≤d≤0.8 μm; The ceramic powder includes zirconia, alumina, silicon dioxide, titanium dioxide, silicon nitride, magnesium oxide, chromium oxide, beryllium oxide, vanadium pentoxide, boron trioxide, spinel, zinc oxide, calcium oxide , mullite, barium titanate at least one.
The housing according to any one of claims 1-10, wherein the glaze layer has at least one color; the thickness of the glaze layer ranges from 100 μm to 200 μm; the glaze layer comprises potassium oxide, At least one of sodium oxide, calcium oxide, magnesium oxide, aluminum oxide, silicon oxide, and beryllium oxide.
A method for preparing a shell, characterized in that it comprises:

preparing the ceramic housing body; and

A glaze layer is formed on the surface of the ceramic housing body, and a plurality of textured parts are formed on the surface of the glaze layer away from the ceramic housing body, the plurality of textured parts are arranged according to a preset rule, and the textured parts can The light is reflected, so that the casing has a flashing effect.
The method for preparing a shell according to claim 12, wherein a glaze layer is formed on the surface of the ceramic shell body, and a plurality of textured parts are formed on the surface of the glaze layer away from the ceramic shell body; comprising :

forming a glaze layer on the surface of the ceramic housing body, and forming a plurality of textured parts on the surface of the glaze layer away from the ceramic housing body; and

The first sintering is carried out at 1000°C to 1200°C, and the time of the first sintering ranges from 3h to 5h, so that the glaze layer forms a glaze layer.
The preparation method of the housing according to claim 12, wherein the preparation method further comprises:

The second polishing is performed in a polishing liquid, wherein the polishing liquid includes polishing particles, the average particle diameter of the polishing particles ranges from 80 nm to 120 nm, and the pH value of the polishing liquid is 9 to 12.
The method for preparing a casing according to claim 14, wherein the polishing particles comprise at least one of silicon dioxide particles, aluminum oxide particles, and cerium oxide particles.
The method for preparing a shell according to any one of claims 12-15, wherein the preparation of the ceramic shell body comprises:

Mix the ceramic powder with a binder and granulate to obtain pellets, the mesh of the pellets ranges from 40 mesh to 100 mesh, and the BET specific surface area of the pellets ranges from 6m 2 /g to 10m 2 /g, the binder is at least one of epoxy binder and polyether binder, and in the pellets, the weight percentage of the binder is in the range of 3% to 5% ;

molding using the pellets to obtain a green body; and

The green body is subjected to debinding and second sintering to obtain a ceramic shell body.
The method for preparing a shell according to claim 16, wherein the molding is at least one of compression molding, injection molding, and tape casting;

When the molding is compression molding, the pellets are used for molding to obtain a green body, including:

Molding is performed at a molding pressure ranging from 10 MPa to 15 MPa, and the pressure is maintained for 10 seconds to 20 seconds to obtain a green body.
The method for preparing a casing according to claim 17, wherein the step of debinding the green body and performing the second sintering includes:

Gradually raise the temperature of the green body from 800°C to 950°C for debinding, the debinding time ranges from 2h to 3h, and perform the second sintering at 1350°C to 1500°C, the time of the second sintering The range is 8h to 10h.
The method for preparing a shell according to claim 18, characterized in that, after debinding the green body and performing the second sintering, the preparation of the ceramic shell body further comprises:

Carrying out mechanical processing and first polishing, so that the roughness Ra' of the ceramic shell body is in the range of 5nm to 25nm, the glossiness of the surface of the ceramic shell body is 130Gu to 160Gu, and the ceramic shell body has a The gloss is greater than that of the glaze layer.
An electronic device, characterized in that it comprises:

display components;

The casing, the casing is arranged on one side of the display assembly, the casing includes a ceramic casing body and a glaze layer, the glaze layer is arranged on one side of the ceramic casing body, the glaze layer It has a plurality of textured parts, and the multiple textured parts are arranged on the surface of the glaze layer away from the ceramic shell body according to preset rules, and the textured parts can reflect light, so that the shell has a flashing effects; and

A circuit board assembly, the circuit board assembly is arranged between the casing and the display assembly, and is electrically connected to the display assembly, and is used to control the display assembly to display.