CN108189444A - A kind of preparation method of combination structure of casing, combination structure of casing - Google Patents
A kind of preparation method of combination structure of casing, combination structure of casing Download PDFInfo
- Publication number
- CN108189444A CN108189444A CN201711230444.4A CN201711230444A CN108189444A CN 108189444 A CN108189444 A CN 108189444A CN 201711230444 A CN201711230444 A CN 201711230444A CN 108189444 A CN108189444 A CN 108189444A
- Authority
- CN
- China
- Prior art keywords
- casing
- combination structure
- plastic rubber
- rubber bracket
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/006—Producing casings, e.g. accumulator cases
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
Abstract
The embodiment of the invention discloses a kind of preparation method of combination structure of casing, combination structure of casing.The preparation method of the combination structure of casing includes：Shell is prepared, prepares plastic rubber bracket, the plastic rubber bracket is fixed on the housing, obtains combination structure of casing first product, preset structure processing is carried out to the combination structure of casing first product, obtains combination structure of casing.Since shell and plastic rubber bracket include the pre- allowance for treating that preset structure is processed, the preset structure processing of combination structure of casing carries out afterwards on the shell in plastic rubber bracket fixation, therefore the precision of the fitted position of shell and plastic rubber bracket is higher in the combination structure of casing prepared, meet required precision of the combination structure of casing to fitted position, combination structure of casing and the assembling yield of complete machine are improved, reduces combination structure of casing and the production cost of complete machine.
Description
Technical field
The present invention relates to the preparation methods and a kind of housing group of the communications field more particularly to a kind of combination structure of casing
Close structure.
Background technology
Ceramics and glass because have plasticity by force and lower-price characteristic, be widely used in the system of terminal enclosure
It is standby, such as it is applied to the preparation of phone housing, wearable device shell.Terminal generally includes terminal enclosure and plastic rubber bracket, plastic cement
Stent, which is fixed in terminal enclosure, forms combination structure of casing.
At present, when terminal includes ceramic shell or glass shell, ceramic shell or glass shell are separately formed, ends
The plastic rubber bracket at end is also separately formed, and the assembling structures such as buckle, molding plastic cement branch are provided on molding plastic rubber bracket
Frame is fixed adhered to by mode for dispensing glue on ceramic shell or glass shell, completes the assembling of terminal enclosure and plastic rubber bracket.
The structure of molding ceramic shell or glass shell is as shown in the label 1 in Fig. 1, in the structure such as Fig. 1 of molding plastic rubber bracket
Label 2 shown in, the structure being buckled in plastic rubber bracket is as shown in the label 21 in Fig. 2.
Although above-mentioned dispensing mode completes the assembling of terminal enclosure and plastic rubber bracket, dispensing bonding method can not
Meet required precision of the combination structure of casing to fitted position, cause the assembling yield of combination structure of casing low and production cost
It is low high with complete machine production cost to eventually lead to final assembly yield for height.
Invention content
The present invention provides a kind of preparation method of combination structure of casing, to solve in the prior art glue
Mode can not meet required precision of the combination structure of casing to fitted position, cause the assembling yield of combination structure of casing low and raw
It produces of high cost, eventually leads to the problem of final assembly yield is low and complete machine production cost is high.
In a first aspect, a kind of preparation method of combination structure of casing is provided, the method includes：
Prepare shell；
Plastic rubber bracket is prepared, the plastic rubber bracket is fixed on the housing, obtains combination structure of casing first product；
Preset structure processing is carried out to the combination structure of casing first product, obtains the combination structure of casing.
Second aspect, provides a kind of combination structure of casing, and the combination structure of casing is according to above-mentioned method preparation
It obtains.
The third aspect provides a kind of terminal, including above-mentioned combination structure of casing.
In this way, in the embodiment of the present invention, when preparing combination structure of casing, shell and plastic rubber bracket are first prepared, by plastic cement
Stent is fixed on the shell, is obtained combination structure of casing first product, then carry out preset structure processing to combination structure of casing first product, is obtained
To the combination structure of casing of required structure, since shell and plastic rubber bracket include the pre- allowance for treating that preset structure is processed, housing group
The preset structure processing for closing structure is carried out in plastic rubber bracket fixation, therefore afterwards on the shell in the combination structure of casing prepared
The precision of the fitted position of shell and plastic rubber bracket is higher, meets required precision of the combination structure of casing to fitted position, carries
The high assembling yield of combination structure of casing and complete machine, reduces combination structure of casing and the production cost of complete machine.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structure diagram of the preparation method middle casing composite structure of existing combination structure of casing；
Fig. 2 is the flow chart of the preparation method of the combination structure of casing of one embodiment of the invention；
Fig. 3 is the structure diagram of the combination structure of casing of another embodiment of the present invention；
Fig. 4 is the First partial structure diagram of the combination structure of casing of another embodiment of the present invention；
Fig. 5 is the second partial structural diagram of the combination structure of casing of another embodiment of the present invention.
Reference sign
1st, molding ceramic shell/molding glass shell 2, plastic rubber bracket
21st, buckle 3, ceramic shell 4, plastic rubber bracket
A, the fitting surface of the edge of opening face b of ceramic shell, plastic rubber bracket
C, the center line of plastic rubber bracket medial surface d, ceramic shell
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 2 is the flow chart of the preparation method of the combination structure of casing of one embodiment of the invention.Shown side according to fig. 2
Combination structure of casing prepared by method includes shell and plastic rubber bracket, and plastic rubber bracket is fixed on the shell, the combination structure of casing
Preparation method include：
Step 101 prepares shell.
Preparation method provided in an embodiment of the present invention is used for the preparation of combination structure of casing.Combination structure of casing can be more
The combination structure of casing of kind terminal, such as mobile phone, wearable device.
Combination structure of casing includes shell and plastic rubber bracket, wherein, shell can be made of hard material, such as ceramics,
Glass etc. has the characteristics that hardness height and poor toughness；Plastic rubber bracket is made of plastic material.
The embodiment of the present invention first prepares shell when preparing combination structure of casing, and the shell of preparation includes knot to be preset
The pre- allowance of structure processing, is processed for subsequent preset structure.
Step 102 prepares plastic rubber bracket, and the plastic rubber bracket of preparation is fixed on the shell, at the beginning of obtaining combination structure of casing
Product.
The embodiment of the present invention prepares plastic rubber bracket, and the plastic rubber bracket of preparation, which has, treats the reserved of preset structure processing
Plastic rubber bracket is fixed on the shell, obtains combination structure of casing first product by amount.
The embodiment of the present invention can in several ways fix plastic rubber bracket on the shell, for example, first way is：
First injection molding plastic rubber bracket, then by plastic rubber bracket gluing after molding on the shell, so as to obtain combination structure of casing first product.
The second way is：Before plastic rubber bracket is prepared, shell is surface-treated, micropore is formed in case surface, is being formed with micropore
Case surface on place plastic rubber bracket embryo material and directly injection molding plastic rubber bracket, obtain combination structure of casing after annealing
First product；In this approach, micropore is formed in case surface, plastic rubber bracket can be made to be moulded in case surface securely, improve shell
The stability of body composite structure.It can also be other preparation methods, the present invention is not limited herein.
It is described when the plastic rubber bracket of preparation includes rack body and part assembling structure for the above-mentioned second way
Placing plastic rubber bracket embryo material in the case surface for be formed with micropore and the step of direct injection molding plastic rubber bracket can wrap
It includes：The rack body of plastic rubber bracket and the embryo material of part assembling structure are placed in the case surface for be formed with micropore, after fixed
Direct injection molding plastic rubber bracket.
After obtaining combination structure of casing first product after the annealing process, the step of structure processing is carried out to combination structure of casing first product
Suddenly can include：Preset structure processing is carried out to the rack body in plastic rubber bracket, processes remaining assembling structure.Residue assembling
Structure can include diversified forms, such as buckle, button.The step of carrying out structure processing to combination structure of casing first product can be with
Including：Preset structure processing is carried out to shell in combination structure of casing first product.
In above-mentioned processing mode, plastic rubber bracket first can go out part assembling structure using mold injection in the preparation, follow-up
When carrying out preset structure processing to combination structure of casing first product, structure processing capacity and the process time of plastic rubber bracket, letter are eliminated
Procedure of processing and the process time of combination structure of casing are changed.
For the relatively simple plastic rubber bracket of structure, can in the case surface for be formed with micropore direct insert injection moulding into
Shape glue rack body and all plastic cement assembling structures so as to eliminate the processing of the structure of subsequent plastic rubber bracket, simplify shell
The preparation process of body composite structure.
Step 103 carries out preset structure processing to combination structure of casing first product, obtains combination structure of casing.
After combination structure of casing first product is prepared, preset structure processing is carried out to combination structure of casing first product.Specifically,
Preset structure processing is carried out to the plastic rubber bracket in combination structure of casing first product, obtains required plastic rubber bracket structure, such as plastic cement
The assembling structures such as buckle, plastic cement position limiting structure.
In operation, the difference of material category and relative position based on shell and plastic rubber bracket can be first to plastic rubber bracket
Preset structure processing is carried out, then preset structure processing is carried out to shell.Preset structure that can be according to actual setting shell and modeling
The processing sequence of the preset structure of glue stent, the present invention are not limited herein.
It can be formed according to actual setting shell, for example, shell can be planar structure, the structure with inner cavity etc..When
Shell has inner cavity, and when plastic rubber bracket is fixed in the interior side-wall surface of shell, it is described to combination structure of casing first product into
The step of row preset structure is processed can include：The face on the basis of the inner cavity plane of shell carries out preset structure to plastic rubber bracket
Processing.The face on the basis of the inner cavity plane of shell carries out preset structure processing to plastic rubber bracket, ensure that plastic rubber bracket obtained
With the relative position of shell, the required precision of the rigging position of plastic rubber bracket and shell is met, obtains meeting structural requirement
Combination structure of casing.
When carrying out preset structure processing to combination structure of casing first product, numerically-controlled machine tool can be used at the beginning of combination structure of casing
Product carry out preset structure processing.Other applicable process equipments can also be used, the present invention is not limited herein.
The method of the embodiment of the present invention, can also be right after preset structure processing is carried out to combination structure of casing first product
Combination structure of casing first product after structure processing carries out cleaning and surface coating processing.Surface coating processing can include it is a variety of,
Such as anti-fingerprint plated film.Auxiliary material assembling, such as textures patch can also be carried out to combination structure of casing, further improves shell combination
The appearance of structure.
The combination structure of casing of preparation and other equipment device can also be assembled, and to the complete machine progressive of assembling
It can test, such as carry out size detection and appearance detection, to judge whether the combination structure of casing prepared meets the requirements.
To make those skilled in the art that the present invention be more clearly understood, now the embodiment of the present invention is carried by the example below
The preparation method of the combination structure of casing of confession describes in detail.
Preparation method provided in an embodiment of the present invention can be used for the preparation of different housings composite structure, and the example below is pair
The introduction of the preparation method of handset shell composite structure.
Example 1
11st, ceramic shell is prepared.
By the dry-pressing formed rear sintering of Zirconium oxide powder, the mobile phone ceramic shell that size is 180 × 90 × 8mm is prepared.System
The structure of standby mobile phone ceramic shell is as shown in label 3 in Fig. 3.
12nd, plastic rubber bracket is prepared.
Injection molding machine injection molding goes out the plastic rubber bracket of required structure.4 institute of label in the structure of the plastic rubber bracket of preparation such as Fig. 3
Show.
Injection raw material can be Sabic PC1414, and the mould temperature of front and rear mould is 110 DEG C, firing rate 120mm/sec, pressure
For 2800kgf/mm2, cooling time 6s.
13rd, dispensing.
Plastic rubber bracket is fixed on jig, dispensing is carried out to it, glue amount about 7.8g can according to pulling capacity and excessive glue situation
Appropriate plus-minus glue amount.
14th, pressurize is bonded, obtains ceramic shell composite structure first product.
The good plastic rubber bracket of dispensing is assembled into outside ceramics by the face on the basis of the inner cavity plane of ceramic shell such as battery storehouse surface
On shell, progress pressurize 15-20min on pressurize jig is then placed into, obtains ceramic shell composite structure first product.
Glue model Fuller 303,120 DEG C of collosol temperature, dispensing needle head model 24#, air pressure 50Mpa, dispensing type
Number for the general YP-441RS of jumping.
15th, CNC1 structures are processed.
The good ceramic shell composite structure first product of dispensing is fixed on CNC jigs, with ceramic shell composite structure first product
Face on the basis of the inner cavity plane of middle ceramic shell carries out preset structure to the plastic rubber bracket in ceramic shell composite structure first product and adds
Work processes the assembling structures such as plastic cement buckle.
16th, CNC2 structures are processed.
Ceramic shell composite structure first product after CNC1 structures are processed is fixed on CNC jigs, and ceramic shell is carried out
Preset structure is processed, and processes required ceramic shell structure, realizes the plane of ceramic shell or the shape effect of solid.
17th, it cleans.
Ultrasonic cleaning step 16 resulting product 5min, ultrasonic electric current are 5A, and product surface is cleaned up.
18th, AF plated films.
Surface coating processing is carried out to step 17 resulting product, anti-fingerprint plated film is formed in product surface.
19th, assembling detection.
Auxiliary material attaching is carried out in step 18 resulting product surface, then carries out the operation of CCD full inspections size.
CCD full inspection sizes operate with the progress of CCD detecting instruments, and CCD detecting instruments are that the appearance of object is passed through display
Device is come the instrument that detects.
The present invention detects the size of ceramic shell composite structure prepared by this example, with reference to Fig. 4 and Fig. 5, inspection
Survey the result shows that, plastic rubber bracket relative to the tolerance of the Z-direction size d1 of the edge of opening face a of ceramic shell in ± 0.05mm,
The Z-direction size d2 of the fitting surface b of plastic rubber bracket and the small A faces a of the edge of opening of ceramic shell are in ± 0.05mm, wherein plastic cement branch
The fitting surface b of frame is the TP fitting surfaces of plastic rubber bracket, and the distance d3 of the center line d of plastic rubber bracket medial surface c to ceramic shell exists
In ± 0.05mm.
The size of mobile phone ceramic shell composite structure of the present invention also to the dispensing method described in background technology is used to prepare
It being detected, testing result shows the tolerance of Fig. 4 and size d1 shown in fig. 5 and size d2 respectively in ± more than 0.10mm,
The tolerance of size d3 is unsatisfactory for the tolerance of handset shell in ± more than 0.15mm.
As it can be seen that it is satisfied by mobile phone according to multiple sizes of mobile phone ceramic shell composite structure prepared by this example the method
The size tolerance requirements of combination structure of casing, therefore mobile phone ceramic shell composite structure is prepared according to the method that this example provides,
Product yield can be greatly promoted, reduces and dismantles probability of doing over again caused by dispensing assembling is bad in the prior art, promote complete machine
Assembly precision solves the problems, such as the bad problem such as complete machine screen pressing abnormal sound caused by fitted position.
Example 2
21st, ceramic shell is prepared.
It is sintered after spending Zirconium oxide powder dry-pressing formed by Chaozhou three, prepares the mobile phone ceramics that size is 180 × 90 × 8mm
Shell.
22nd, ceramic shell surface micropore is handled.
Ceramic shell is put into special surface processing drug slot, pore corrosion processing is carried out, is formed and received on ceramic shell surface
Meter level micropore.
23rd, insert injection molding obtains ceramic shell composite structure first product.
Ceramic shell after surface treatment is subjected to insert injection moulding (PBT+30%GF), firing rate 280mm/sec, pressure is big
In 2700kgf/mm2, allowing plastic rubber bracket strong bond, pulling capacity can reach more than 80KG, obtain ceramic case on ceramic shell
Body composite structure first product.
24th, it anneals.
Ceramic shell composite structure first product is placed in 160 DEG C of stove and toasts 1h.
25th, CNC1 structures are processed.
Ceramic shell composite structure first product after annealing is fixed on CNC jigs, with ceramic shell composite structure first product
Face on the basis of the inner cavity plane of middle ceramic shell carries out preset structure to the plastic rubber bracket in ceramic shell composite structure first product and adds
Work, it is about 3min/pcs to process preset structures, the process times such as plastic cement buckle.
26th, CNC2 structures are processed.
Ceramic shell composite structure first product after CNC1 structures are processed is fixed on CNC jigs, and ceramic shell is carried out
Preset structure is processed, and processes required ceramic shell structure, process time is about 10min/pcs.
27th, it cleans.
28th, ultrasonic cleaning 5min, electric current 5A, product surface is cleaned up.
29th, AF plated films.
Surface coating processing is carried out to step 28 resulting product, anti-fingerprint plated film is formed in product surface.
210th, assembling detection.
Auxiliary material attaching is carried out, then carry out CCD full inspection sizes in step 29 resulting product surface.
The present invention detects the size of ceramic shell composite structure prepared by this example, with reference to Fig. 4 and Fig. 5, inspection
Survey the result shows that, the tolerance of size d1, size d2 and size d3 are in 0.05mm, multiple sizes of ceramic shell composite structure
The size tolerance requirements of handset shell composite structure are satisfied by, therefore mobile phone ceramic shell is prepared according to the method that this example provides
Composite structure can greatly promote product yield, reduce and dismantle probability of doing over again caused by dispensing assembling is bad in the prior art,
Final assembly precision is promoted, solves the problems, such as the bad problem such as complete machine screen pressing abnormal sound caused by fitted position.
The embodiment of the present invention additionally provides a kind of combination structure of casing, combination structure of casing be according to embodiments of the present invention on
State what the preparation method of offer was prepared.Combination structure of casing has many advantages, such as fitted position precision height, is of the required size.
The embodiment of the present invention additionally provides a kind of terminal, includes the combination structure of casing of the above-mentioned offer of the embodiment of the present invention.
Terminal has the advantages that combination structure of casing, and details are not described herein by the present invention.
Terminal can include a variety of, such as mobile phone, tablet, notebook, wearable device, medical instrument.
Embodiment according to the present invention when preparing combination structure of casing, first prepares shell and plastic rubber bracket, by plastic rubber bracket
It fixes on the shell, obtains combination structure of casing first product, then preset structure processing is carried out to combination structure of casing first product, obtain institute
The combination structure of casing of structure is needed, since shell and plastic rubber bracket include the pre- allowance for treating that preset structure is processed, shell combination knot
The preset structure processing of structure carries out, therefore shell in the combination structure of casing prepared afterwards on the shell in plastic rubber bracket fixation
It is higher with the precision of the fitted position of plastic rubber bracket, required precision of the combination structure of casing to fitted position is met, is improved
The assembling yield of combination structure of casing and complete machine reduces combination structure of casing and the production cost of complete machine.
Preparation method to a kind of combination structure of casing provided by the present invention and a kind of shell combination object structure above
Be described in detail, specific case used herein is expounded the principle of the present invention and embodiment, more than it is real
The explanation for applying example is merely used to help understand the method and its core concept of the present invention；Meanwhile for the general technology of this field
Personnel, thought according to the present invention, there will be changes in specific embodiments and applications, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (10)
1. a kind of preparation method of combination structure of casing, which is characterized in that the method includes：
Prepare shell；
Plastic rubber bracket is prepared, the plastic rubber bracket is fixed on the housing, obtains combination structure of casing first product；
Preset structure processing is carried out to the combination structure of casing first product, obtains combination structure of casing.
2. according to the method described in claim 1, it is characterized in that, the shell includes ceramic shell or glass shell.
3. according to the method described in claim 1, it is characterized in that, described prepare plastic rubber bracket, the plastic rubber bracket is fixed
On the housing, combination structure of casing first product is obtained to include：
Plastic rubber bracket described in injection molding；
The molding plastic rubber bracket is fixed on the housing, obtains the combination structure of casing first product.
4. according to the method described in claim 1, it is characterized in that, it is described prepare plastic rubber bracket before, the method is also wrapped
It includes：
The shell is surface-treated, micropore is formed in the case surface；
It is described to prepare plastic rubber bracket, the plastic rubber bracket is fixed on the housing, obtains the step of combination structure of casing first product
Suddenly include：
Plastic rubber bracket embryo material and plastic rubber bracket directly described in injection molding are placed in the case surface for be formed with micropore, is moved back
The combination structure of casing first product is obtained after fire processing.
5. according to the method described in claim 4, it is characterized in that, the plastic rubber bracket includes rack body and part assembling knot
Structure, it is described that combination structure of casing first product progress structure processing is included：
Preset structure processing is carried out to the rack body in the plastic rubber bracket, processes remaining assembling structure.
6. according to the method described in claim 1, it is characterized in that, when the shell has inner cavity, the plastic rubber bracket is fixed
When in the interior side-wall surface of the shell, described the step of carrying out preset structure processing to the combination structure of casing first product, wraps
It includes：
The face on the basis of the inner cavity plane of the shell carries out preset structure processing to the plastic rubber bracket.
7. according to the method described in claim 1, it is characterized in that, the combination structure of casing first product is preset described
After structure processing, the method further includes：
The combination structure of casing first product after being processed to structure is cleaned and surface coating processing.
8. according to the method described in claim 1, it is characterized in that, described carry out the combination structure of casing first product default knot
Structure processing includes：
Using numerically-controlled machine tool, preset structure processing is carried out to the combination structure of casing first product.
9. a kind of combination structure of casing, which is characterized in that the combination structure of casing is according to claim any one of 1-8
Method be prepared.
10. a kind of terminal, which is characterized in that including the combination structure of casing described in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711230444.4A CN108189444B (en) | 2017-11-29 | 2017-11-29 | Preparation method of shell combined structure and shell combined structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711230444.4A CN108189444B (en) | 2017-11-29 | 2017-11-29 | Preparation method of shell combined structure and shell combined structure |
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| CN108189444A true CN108189444A (en) | 2018-06-22 |
| CN108189444B CN108189444B (en) | 2021-05-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3789366A1 (en) * | 2019-09-06 | 2021-03-10 | Beijing Xiaomi Mobile Software Co., Ltd. | Shell and processing method of shell |
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| CN104607884A (en) * | 2015-02-13 | 2015-05-13 | 广东欧珀移动通信有限公司 | Processing technique of cellphone shell with metal luster |
| CN104850188A (en) * | 2015-06-04 | 2015-08-19 | 上海华勤通讯技术有限公司 | Metal middle frame and manufacturing method thereof, handheld terminal and manufacturing method thereof |
| CN105306632A (en) * | 2015-09-30 | 2016-02-03 | 深圳天珑无线科技有限公司 | Mobile phone shell and shell manufacturing process thereof |
| 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 |
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|---|---|---|---|---|
| CN104607884A (en) * | 2015-02-13 | 2015-05-13 | 广东欧珀移动通信有限公司 | Processing technique of cellphone shell with metal luster |
| CN104850188A (en) * | 2015-06-04 | 2015-08-19 | 上海华勤通讯技术有限公司 | Metal middle frame and manufacturing method thereof, handheld terminal and manufacturing method thereof |
| CN105306632A (en) * | 2015-09-30 | 2016-02-03 | 深圳天珑无线科技有限公司 | Mobile phone shell and shell manufacturing process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3789366A1 (en) * | 2019-09-06 | 2021-03-10 | Beijing Xiaomi Mobile Software Co., Ltd. | Shell and processing method of shell |
| US11724968B2 (en) | 2019-09-06 | 2023-08-15 | Beijing Xiaomi Mobile Software Co., Ltd. | Shell and processing method of shell |
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| CN108189444B (en) | 2021-05-28 |
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