CN103079367A - Composite component with metal shell provided with plastic mechanism - Google Patents
Composite component with metal shell provided with plastic mechanism Download PDFInfo
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- CN103079367A CN103079367A CN2011103268009A CN201110326800A CN103079367A CN 103079367 A CN103079367 A CN 103079367A CN 2011103268009 A CN2011103268009 A CN 2011103268009A CN 201110326800 A CN201110326800 A CN 201110326800A CN 103079367 A CN103079367 A CN 103079367A
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- metal shell
- plastic cement
- composite members
- cement mechanism
- resin
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Abstract
The invention discloses a composite component with a metal shell provided with a plastic mechanism. The composite component comprises the metal shell, a binding face, a bonding layer and the plastic mechanism, wherein the metal shell is provided with an inner side face and an outer side face; the binding face is physically formed on the inner side face of the metal shell; the bonding layer is oppositely arranged on the binding face; and the plastic mechanism is formed on the bonding layer in an injection molding manner.
Description
Technical field
The present invention relates to a kind of metal plastic composite members, particularly relate to a kind of light metal housing article shaped, comprise and utilize the plasticity machines member of imbedding the moulding on metal shell of injection moulding (insert injection) technology.
Background technology
In recent years, because portable electronic product towards light, thin, short, little trend development, needs to adopt the metal chassis of gently changing and possess high rigidity, this is so that metal chassis becomes the development priority of industry in conjunction with the composite structure technology of plasticity machines member.Traditional practice of past is respectively with behind metalwork and the forming plastic pieces, and then gluing on metalwork is again aimed at metalwork and stacked with plastic parts, impose at last the pressing gummed.Yet the metal chassis that is applied to 3C Product is not simple planar structure usually, but has irregular curved surface, and plastic parts is the corresponding curved surface of tool also, and this curved surface is very difficult to the gummed manufacture craft of curved surface, therefore causes yield to promote.
In relevant prior art, TOHKEMY 2011-73191 publication number has disclosed a kind of method that fine reinforced plastic (CFRP) prepreg of carbon (prepreg) is powerful affixed with metal alloy, referring to Fig. 1, it is characterized in that first the predetermined surface of CFRP prepreg 12 and metal alloy 11 in addition after the alligatoring, impose respectively more single fluidity (one-pack type) epoxy resin solid, make afterwards the surface that scribbles solid contact, solidify and glue together.Wherein the predetermined surface alligatoring with metal alloy 11 need impose special liquid medicine, forms the nano aperture surface.
TOHKEMY 2010-274600 publication number has then disclosed the manufacture method of the complex of a kind of metal alloy and thermosetting resin, referring to Fig. 2, it is characterized in that first the surface of metal alloy spare 1 is imposed special liquid medicine, lose nanometer well table face, continue it, also need to form again the superficial layer of metal oxide or metal phosphide, the last surface that plastic parts 4 is molded over this metal alloy spare 1 to imbed injection molding technology.
TOHKEMY 2007-179952 publication number has then disclosed a kind of manufacture method of button, it is characterized in that a metal deposit of an outer button section (outside keytop piece) and a white film of an interior button section (inside keytop piece) are being melted layer (fusion layer) combination set by one.
TOHKEMY 2009-81030 publication number has then disclosed a kind of manufacture method of clinching, it is characterized in that to be used for then that the sticker of cover piece (cover member) and button (key top) is formed between this cover piece and this button with the point-like array, to make things convenient for the degasification (degassing) in the manufacture process.
China CN1827839 patent publication No. then is to have disclosed a kind of metal surface treating method; it is characterized in that first metalwork being imposed the priming paint coating; continue it; with vacuum coating coating metal film layer; after impose again the clear hard sprayed protection; the method mainly is to carry out the surface treatment of magnesium alloy appearance spare, the magnesium-alloy material that has metal appearance texture with generation by the vacuum coating manufacture craft.
TOHKEMY 2011-11505 publication number has disclosed a kind of method of making the metal-resin combination product with injection mo(u)lding, referring to Fig. 3, can be in the molded resin in the back side of metalwork 20 mechanism, form decoration in the appearance of metalwork 20 with cosmetic sheet (decorative sheet) F.
TOHKEMY 2011-11505 publication number has disclosed a kind of manufacture method of combination product, during by the injection moulding melting resin, will band simultaneously layer and be formed on the one side of metallic object, and make the combination product of metallic object and casting resin be molded as the mould shape of institute's phase.
TOHKEMY 2011-73314 publication number has disclosed a kind of and transparent method of imbedding material injection mo(u)lding resin, referring to Fig. 4, can improve and take shape in the transparent intensity of imbedding the resin piece of material 3 peripheries, it is characterized in that providing a metal framework 4 on every side at the transparent material 3 of imbedding, again a following layer 5 is fitted in this transparent one side of imbedding material and this metal framework formation, then injection mo(u)lding resin, form one around this transparent resin piece 7 of imbedding material, and this resin piece is engaged with the periphery of this metal framework at least.
Summary of the invention
Main purpose of the present invention is to provide a kind of metal shell of improvement to have the composite members of plastic cement mechanism, to solve deficiency and the shortcoming of prior art.
According to a preferred embodiment of the present invention, the invention provides the composite members that a kind of metal shell has plastic cement mechanism, include: a metal shell has a medial surface and a lateral surface; One binding face takes shape in this medial surface of this metal shell, and it is by a physics mode moulding; One following layer is relatively arranged on this binding face; And be formed in a plasticity machines member on this following layer, and this plasticity machines member be with injection mo(u)lding on this following layer.Wherein this physics mode includes sandblast roughening treatment, laser-induced thermal etching roughening treatment, plasma treatment (plasma), ultraviolet light plasma treatment (UV Plasma) or mould pressing and forming.
According to another preferred embodiment of the present invention, the invention provides the composite members that a kind of metal shell has plastic cement mechanism, include: a metal shell has a medial surface and a lateral surface; One binding face takes shape in this medial surface of this metal shell, and it is by a chemical mode moulding; One following layer is relatively arranged on this binding face; And be formed in a plasticity machines member on this following layer, and this plasticity machines member be with injection mo(u)lding on this following layer.Wherein this chemical mode includes chemical etching processing, moulding.
Your in order to make juror can further understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing.Yet appended accompanying drawing only for reference with aid illustration usefulness, be not to the present invention's limitr in addition.
Description of drawings
This specification contains the part that drawings attached and Yu Wenzhong have consisted of this specification, so that the person of readding has further understanding to the embodiment of the invention.Those diagrams have been described some embodiments of the invention and together with this paper description its principle have been described.In those diagrams:
Fig. 1 is the powerful affixed schematic diagram of the fine reinforced plastic prepreg of the carbon of TOHKEMY 2011-73191 publication number and metal alloy;
Fig. 2 is the schematic diagram of the complex of the metal alloy of TOHKEMY 2010-274600 publication number and thermosetting resin;
Fig. 3 is a kind of schematic diagram of making the metal-resin combination product with injection mo(u)lding of TOHKEMY 2011-11505 publication number;
Fig. 4 is a kind of and transparent schematic diagram of imbedding the method for material injection mo(u)lding resin of TOHKEMY 2011-73314 publication number;
The end view that Fig. 5 illustration metal shell of the present invention has the composite members of plastic cement mechanism;
Fig. 6 A is the composite members that the metal shell of Fig. 5 has plastic cement mechanism, along the generalized section of tangent line I-I ';
Fig. 6 B is the enlarged diagram of circled among Fig. 6 A;
Fig. 7 is the schematic flow sheet that making metal shell that a preferred embodiment of the present invention illustrates has the composite members of plastic cement mechanism;
Fig. 8 is the schematic flow sheet that making metal shell that another preferred embodiment of the present invention illustrates has the composite members of plastic cement mechanism.
Should be noted that all diagrams in this specification are all legend character.In order to know and conveniently illustrate event that each parts in the diagram may be exaggerated or be presented with dwindling on size and ratio.Generally speaking identical reference symbol can be used for indicating after the modification or corresponding or similar feature among the different embodiment among the figure.
The main element symbol description
1 metal shell has the composite members of plastic cement mechanism
10 metal shells
12 plasticity machines members
The 12a signal connects the hole
The 12b package assembly
12c structural strengthening structure
101 decorative layers
112 following layers
The S0 medial surface
The S1 lateral surface
S
BBinding face
The S100 sub-process
The S102 sub-process
The S200 sub-process
The S202 sub-process
The charging of M01 metal material
The M02 punch forming
The M03 Milling Process
The M04 burr removing
The surface treatment of M05 binding face
The M06 cleaning
M07 coating solid
The M08 baking
The charging of M11 metal material
The surface treatment of M12 binding face
The M13 punch forming
The M14 Milling Process
The M15 burr removing
The M16 cleaning
The M17 incrustation is processed
M18 coating solid
The M19 baking
The charging of P01 plastics
P02 is dry
P03 imbeds injection moulding
The P04 burr removing
The P05 incrustation is processed
The P06 shaping
P07 back segment QC step
The charging of P11 plastics
P12 is dry
P13 imbeds injection moulding
The P14 burr removing
The P15 shaping
P16 back segment QC step
Embodiment
During details was hereinafter described, component symbol can be used to be indicated in a part that becomes in the diagram of enclosing wherein, and represents with the special case describing mode of practicable this embodiment.Enough details can be described this class embodiment so that the general technology personage in this field is able to tool to implement.The person of readding must recognize the embodiment that also can adopt other among the present invention, or under the prerequisite departing from embodiment described in the literary composition not, make any structural, logicality, and step order on change.Therefore, details is hereinafter described will not want to be considered to be a kind of restriction, otherwise the embodiment that wherein comprises will be defined by the claim of enclosing.
See also Fig. 5, Fig. 6 A and Fig. 6 B, wherein Fig. 5 is the end view that metal shell of the present invention has the composite members of plastic cement mechanism, Fig. 6 A is the composite members that the metal shell of Fig. 5 has plastic cement mechanism, and along the generalized section of tangent line I-I ', Fig. 6 B is the enlarged diagram of circled among Fig. 6 A.The composite members that metal shell of the present invention has plastic cement mechanism can be hand set machine shell or battery back of the body lid etc.Shown in Fig. 5 and Fig. 6 A, the composite members 1 that metal shell of the present invention has a plastic cement mechanism comprises a metal shell 10 and is formed in plasticity machines member 12 on the medial surface S1 of metal shell 10, wherein, plasticity machines member 12 comprises that signal meets hole 12a, package assembly 12b and/or structural strengthening structure 12c.
12 injection mo(u)ldings of plasticity machines member are at the binding face S of a medial surface S1 of metal shell 10
BOn, say in detail it, binding face S
BBefore carrying out injection moulding, in advance with physics mode or chemical mode moulding, and at binding face S
BOn a following layer 112 is set, and 12 injection mo(u)ldings of plasticity machines member are on following layer 112, combine closely and consist of with metal shell 10.In addition, on a lateral surface S0 of metalwork 10, then can coating one surface decoration layer 101, to obtain different appearance tactile impression performances.
Aforementioned in order to moulding binding face S
BCan include sandblast roughening treatment, laser-induced thermal etching roughening treatment, plasma treatment (plasma), ultraviolet light plasma treatment (UV Plasma) or mould pressing and forming with physics mode, and chemical mode can include chemical etching processing, moulding.
See also Fig. 7, the schematic flow sheet that it has the composite members of plastic cement mechanism for the making metal shell that illustrates according to a preferred embodiment of the present invention.As shown in Figure 7, the present invention makes the method that metal shell has a composite members of plastic cement mechanism and includes two sub-process S100 and S102, wherein sub-process S100 is the preparation process of metal shell, and S102 is mainly and imbeds injection mo(u)lding, surface treatment step and the inspection of back segment product QC.At first, carry out metal material charging (step M01) and charging inspection, wherein above-mentioned metal material can be stainless steel, magnesium alloy, aluminium alloy or magnadure etc.Then, above-mentioned metal material is carried out punch forming (step M02), to obtain desired metal shell shape, for example, hand set machine shell or battery back of the body lid etc. continue it, carry out Milling Process (step M03), then, carry out burr removing step (step M04).
After finishing the burr removing step, then, at the medial surface moulding binding face (step M05) of metal shell.According to preferred embodiment of the present invention, above-mentioned binding face can utilize physics mode to carry out surface treatment, for example, and the sandblast roughening treatment.Certainly, also can select other physics mode to carry out surface coarsening, for example, laser-induced thermal etching roughening treatment, plasma treatment, ultraviolet light plasma treatment or mould pressing and forming etc.In addition, also can select with chemical mode moulding binding face, for example, chemical etching processing, moulding.Then, carry out cleaning (step M06).Then, carry out the step (step M07) of coating solid, for example, in modes such as spraying, some glue or printings, with solid (adhesive) or couplant (primer) etc., coat the finished binding face of surface treatment, to form following layer at this binding face.Next, toast (step M08), so finish sub-process S100.Through the metal shell that sub-process S100 processes, then wait the pending follow-up injection mo(u)lding of imbedding to process, that is, sub-process S102.
Below in detail sub-process S102 will be described in detail, at first, carry out plastics charging (step P01) and inspection, wherein above-mentioned plastics can be Merlon (polycarbonate, PC) resin, acrylonitrile-butadiene-styrene copolymer (acrylonitrile butadiene styrene, AB S) resin or polyphenylene sulfide (polyphenylene sulfide, PPS) resin etc.Then, carry out drying and process (step P02).Then, imbed and penetrate manufacture craft (step P03), plastics or plastic-injection are taken shape on the metal shell of processing through sub-process S100.More particularly, plastic cement directly is injected and molded on the following layer of binding face of metal shell.For instance, metal shell can be hand set machine shell or battery back of the body lid etc., and the plasticity machines member of injection mo(u)lding then can be that signal connects hole, package assembly and/or structural strengthening structure.Because imbedding the injection mo(u)lding manufacture craft has been known techniques, therefore repeat no more.Afterwards, carry out burr removing step (step P04).Then, the incrustation that can select to carry out metalwork is processed (step P05), for example, and sandblast, hair processing, PVD processing, anode processing or spray treatment etc.Wherein, it should be noted that above-mentioned PVD processing includes again plated nickel film and processes, it can show on the casing surface special-effect of hiding font.In addition, also a decorative layer can be set at the lateral surface of metal shell, for example, in modes such as printing, application, aluminium anodes processing, form shades of colour, pattern and decorative pattern.At last, carry out shaping (step P06) and back segment QC step (step P07), finish sub-process S102.
See also Fig. 8, the schematic flow sheet that it has the composite members of plastic cement mechanism for the making metal shell that illustrates according to another preferred embodiment of the present invention.As shown in Figure 8, another preferred embodiment of the present invention has the method for the composite members of plastic cement mechanism to make metal shell, include equally two sub-process S200 and S202, wherein sub-process S200 is the preparation process of metal shell, and S202 is mainly and imbeds injection mo(u)lding and the inspection of back segment product QC.Sub-process S202 below is described in detail in detail, at first, carries out metal material charging (step M11) and charging inspection, wherein above-mentioned metal material can be stainless steel, magnesium alloy, aluminium alloy or magnadure etc.Medial surface moulding binding face (step M12) at metal shell.According to preferred embodiment of the present invention, above-mentioned binding face carries out surface treatment with physics mode, for example, and the sandblast roughening treatment.Certainly, also can select other physics mode to carry out surface coarsening, for example, laser-induced thermal etching roughening treatment, plasma treatment, ultraviolet light plasma treatment or mould pressing and forming etc.In addition, also can select with chemical mode moulding binding face, for example, chemical etching processing, moulding.Then, above-mentioned metal material is carried out punch forming (step M13), to obtain desired metal shell shape, for example, hand set machine shell or battery back of the body lid etc. continue it, carry out Milling Process (step M14), then, carry out burr removing step (step M15).Then, carry out cleaning (step M16).
Finish after the cleaning, next carry out incrustation and process (step M17), for example, sandblast, hair processing, PVD processing, anode processing or spray treatment etc.Wherein, it should be noted that above-mentioned PVD processing includes again plated nickel film and processes, it can show on the casing surface special-effect of hiding font.In addition, also a decorative layer can be set at the lateral surface of metal shell, for example, in modes such as printing, application, aluminium anodes processing, form shades of colour, pattern and decorative pattern.Then, carry out the step (step M18) of coating solid, for example, in modes such as spraying, some glue or printings, with solid (adhesive) or couplant (primer) etc., coat the finished binding face of surface treatment, to form following layer at this binding face.Next, toast (step M19), so finish sub-process S200.Through the metal shell that sub-process S200 processes, then wait the pending follow-up injection mo(u)lding of imbedding to process, that is, sub-process S202.
Below in detail sub-process S202 will be described in detail, and at first, carry out plastics charging (step P11) and check that wherein above-mentioned plastics can be PC resin, ABS resin or PPS resin etc.Then, carry out drying and process (step P12).Then, imbed injection moulding manufacture craft (step P13), with plastics or plastic-injection on the metal shell of processing through sub-process S200.More particularly, plastic cement directly is injected and molded on the following layer of binding face of metal shell.For instance, metal shell can be hand set machine shell or battery back of the body lid etc., and the plasticity machines member of injection mo(u)lding then can be that signal connects hole, package assembly and/or structural strengthening structure.Because imbedding the injection mo(u)lding manufacture craft has been known techniques, therefore repeat no more.Afterwards, carry out burr removing step (step P14).At last, carry out shaping (step P15) and back segment QC step (step P16), finish sub-process S202.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (18)
1. a metal shell has the composite members of plastic cement mechanism, includes:
Metal shell has medial surface and lateral surface;
Binding face takes shape in this medial surface of this metal shell, and it is by a physics mode moulding;
Following layer is relatively arranged on this binding face; And
Take shape in the plasticity machines member on this following layer, and this plasticity machines member with injection mo(u)lding on this following layer.
2. metal shell as claimed in claim 1 has the composite members of plastic cement mechanism, and wherein this following layer includes a solid.
3. metal shell as claimed in claim 1 has the composite members of plastic cement mechanism, and wherein this metalwork includes magnesium alloy, aluminium alloy or magnadure.
4. metal shell as claimed in claim 1 has the composite members of plastic cement mechanism, and wherein this metal shell includes stainless steel.
5. metal shell as claimed in claim 1 has the composite members of plastic cement mechanism, wherein this plasticity machines member includes Merlon (polycarbonate, PC) resin, acrylonitrile-butadiene-styrene copolymer (acrylonitrile butadiene styrene, ABS) resin or polyphenylene sulfide (polyphenylene sulfide, PPS) resin.
6. metal shell as claimed in claim 1 has the composite members of plastic cement mechanism, and wherein this plasticity machines member is that a signal connects the hole.
7. metal shell as claimed in claim 1 has the composite members of plastic cement mechanism, and wherein this plasticity machines member is a package assembly.
8. metal shell as claimed in claim 1 has the composite members of plastic cement mechanism, and wherein this plasticity machines member is a structural strengthening structure.
9. have the composite members of plastic cement mechanism such as the described metal shell of claim 1 to 4, other comprises a decorative layer, is arranged at this lateral surface of this metal shell.
10. a metal shell has the composite members of plastic cement mechanism, includes:
Metal shell has medial surface and lateral surface;
Binding face takes shape in the medial surface of this metal shell, and it is by the chemical mode moulding;
Following layer is relatively arranged on this binding face; And
Take shape in the plasticity machines member on this following layer, and this plasticity machines member with injection mo(u)lding on this following layer.
11. metal shell as claimed in claim 10 has the composite members of plastic cement mechanism, wherein this following layer includes a solid.
12. metal shell as claimed in claim 10 has the composite members of plastic cement mechanism, wherein this metal shell includes magnesium alloy, aluminium alloy or magnadure.
13. metal shell as claimed in claim 10 has the composite members of plastic cement mechanism, wherein this metal shell includes stainless steel.
14. metal shell as claimed in claim 10 has the composite members of plastic cement mechanism, wherein this plasticity machines member includes Merlon (polycarbonate, PC) resin, acrylonitrile-butadiene-styrene copolymer (acrylonitrile butadiene styrene, AB S) resin or polyphenylene sulfide (polyphenylene sulfide, PPS) resin.
15. metal shell as claimed in claim 10 has the composite members of plastic cement mechanism, wherein this plasticity machines member is that a signal connects the hole.
16. metal shell as claimed in claim 10 has the composite members of plastic cement mechanism, wherein this plasticity machines member is a package assembly.
17. metal shell as claimed in claim 10 has the composite members of plastic cement mechanism, wherein this plasticity machines member is a structural strengthening structure.
18. have the composite members of plastic cement mechanism such as the described metal shell of claim 10 to 13, other comprises a decorative layer, is arranged at this lateral surface of this metal shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103268009A CN103079367A (en) | 2011-10-25 | 2011-10-25 | Composite component with metal shell provided with plastic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103268009A CN103079367A (en) | 2011-10-25 | 2011-10-25 | Composite component with metal shell provided with plastic mechanism |
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| CN103079367A true CN103079367A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103268009A Pending CN103079367A (en) | 2011-10-25 | 2011-10-25 | Composite component with metal shell provided with plastic mechanism |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105307438A (en) * | 2015-11-18 | 2016-02-03 | 广东欧珀移动通信有限公司 | Electronic device shell, manufacturing method of electronic device shell and electronic device |
| CN105376930A (en) * | 2015-12-09 | 2016-03-02 | 广东欧珀移动通信有限公司 | Electronic product casing and manufacturing method thereof |
| CN106426958A (en) * | 2016-10-31 | 2017-02-22 | 维沃移动通信有限公司 | Terminal rear cover and terminal rear cover preparation method |
| CN106535536A (en) * | 2016-10-31 | 2017-03-22 | 维沃移动通信有限公司 | Rear cover of electronic equipment and rear cover preparation method |
| CN106550564A (en) * | 2016-10-31 | 2017-03-29 | 维沃移动通信有限公司 | A kind of terminal bonnet and terminal bonnet preparation method |
| CN106550068A (en) * | 2016-10-31 | 2017-03-29 | 维沃移动通信有限公司 | A kind of terminal bonnet and terminal bonnet preparation method |
| CN110665771A (en) * | 2018-07-02 | 2020-01-10 | 山西裕鼎精密科技有限公司 | Gap closing method for metal plastic composite part |
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| TWM392745U (en) * | 2010-04-02 | 2010-11-21 | Pao Yi Technology Co Ltd | Thin metal shell with plastic components |
| TW201127618A (en) * | 2010-02-04 | 2011-08-16 | Mitsubishi Plastics Inc | Resin/metal composite laminate, resin/metal composite injection molded article, and method of manufacturing the same |
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| CN101578020A (en) * | 2008-05-09 | 2009-11-11 | 富准精密工业(深圳)有限公司 | Shell and manufacture method thereof |
| TW201127618A (en) * | 2010-02-04 | 2011-08-16 | Mitsubishi Plastics Inc | Resin/metal composite laminate, resin/metal composite injection molded article, and method of manufacturing the same |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105307438A (en) * | 2015-11-18 | 2016-02-03 | 广东欧珀移动通信有限公司 | Electronic device shell, manufacturing method of electronic device shell and electronic device |
| CN105376930A (en) * | 2015-12-09 | 2016-03-02 | 广东欧珀移动通信有限公司 | Electronic product casing and manufacturing method thereof |
| CN105376930B (en) * | 2015-12-09 | 2018-04-10 | 广东欧珀移动通信有限公司 | Electronic product casing and preparation method thereof |
| CN106426958A (en) * | 2016-10-31 | 2017-02-22 | 维沃移动通信有限公司 | Terminal rear cover and terminal rear cover preparation method |
| CN106535536A (en) * | 2016-10-31 | 2017-03-22 | 维沃移动通信有限公司 | Rear cover of electronic equipment and rear cover preparation method |
| CN106550564A (en) * | 2016-10-31 | 2017-03-29 | 维沃移动通信有限公司 | A kind of terminal bonnet and terminal bonnet preparation method |
| CN106550068A (en) * | 2016-10-31 | 2017-03-29 | 维沃移动通信有限公司 | A kind of terminal bonnet and terminal bonnet preparation method |
| CN106535536B (en) * | 2016-10-31 | 2019-10-15 | 维沃移动通信有限公司 | The rear cover and rear cover preparation method of a kind of electronic equipment |
| CN106550564B (en) * | 2016-10-31 | 2020-04-24 | 维沃移动通信有限公司 | Terminal rear cover and preparation method thereof |
| CN110665771A (en) * | 2018-07-02 | 2020-01-10 | 山西裕鼎精密科技有限公司 | Gap closing method for metal plastic composite part |
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Application publication date: 20130501 |