CN107839144B - A kind of processing method of shell, shell and mobile terminal - Google Patents
A kind of processing method of shell, shell and mobile terminal Download PDFInfo
- Publication number
- CN107839144B CN107839144B CN201710931917.7A CN201710931917A CN107839144B CN 107839144 B CN107839144 B CN 107839144B CN 201710931917 A CN201710931917 A CN 201710931917A CN 107839144 B CN107839144 B CN 107839144B
- Authority
- CN
- China
- Prior art keywords
- shell
- injection molding
- molding machine
- plastic cement
- cast
- 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.)
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Links
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 239000004568 cement Substances 0.000 claims abstract description 40
- 238000001746 injection moulding Methods 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 239000004411 aluminium Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of processing methods of shell, including provide shell；Four cast gates, four cast gate intervals setting are set on a side of the shell；The injection hole of the injection molding machine is set to respectively correspond four cast gates, so that the plastic cement in the injection molding machine is flowed through on the inner surface of the shell by four cast gates, to form preset structure on the inner surface of the shell.The processing method of shell provided in an embodiment of the present invention is by four cast gates of setting on a side of shell, four different locations of the plastic cement of injection molding machine a side are flowed on the inner surface of shell, accelerate the flowing of plastic cement, reduce plastic cement because flow channel is too long cool down caused by shrink bad problem, the binding force for improving the inner surface of preset structure and shell enhances the reliability of shell.The present invention also provides a kind of shell and mobile terminals.
Description
Technical field
The present invention relates to field of electronic device more particularly to a kind of processing methods of shell, shell and mobile terminal.
Background technique
The inner surface of terminal shell usually requires to be molded into required various shape, with first device inside fixed terminal
Part or improve terminal shell intensity, plastic cement during injection molding by various factors influenced such as temperature height,
The factors such as the length of runner, and make plastic cement not identical as the bond strength of shell on the different location of shell, bond strength
Weaker part may impact the reliability of terminal shell.
Summary of the invention
The purpose of the present invention is to provide a kind of processing methods of shell, comprising:
Shell is provided；
Four cast gates, four cast gate intervals setting are set on a side of the shell；
The injection hole of the injection molding machine is set to respectively correspond four cast gates, so that the plastic cement in the injection molding machine passes through institute
It states four cast gates to flow through on the inner surface of the shell, to form preset structure on the inner surface of the shell.
The embodiment of the invention also provides a kind of shell, the inner surface of the shell has the processing side by above-mentioned shell
The preset structure that method is process.
The embodiment of the invention also provides a kind of mobile terminals, including shell.
Processing method, shell and the mobile terminal of shell provided in an embodiment of the present invention are by four cast gates of setting in shell
A side on, enable the plastic cement of injection molding machine a side four different locations flow into shell inner surface on,
The flowing for accelerating plastic cement, reduce plastic cement because flow channel is too long cool down caused by shrink bad problem, improve pre-
If the binding force of the inner surface of structure and shell, enhances the reliability of shell.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of the processing method of shell provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the cast gate in Fig. 1；
Fig. 3 is the flow diagram of the processing method of another shell provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of mobile terminal provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
Below in conjunction with attached drawing 1- attached drawing 4, a kind of processing method for shell that first embodiment of the invention provides is carried out
It is discussed in detail.
Referring to Figure 1, be a kind of shell provided in an embodiment of the present invention processing method flow diagram.Such as Fig. 1 institute
Show, the method for the embodiment of the present invention may comprise steps of S101- step S105.
S101: shell is provided.
Specifically, shell can be the rear cover or back-cover of mobile terminal.
Shell is made according to actual needs, it is possible to understand that, shell can be the rear cover of mobile terminal.Wherein, shell has
There are outer surface and inner surface, outer surface is that shell is exposed to the surface in air, i.e., can be direct when user uses mobile terminal
The surface touched；Inner surface is then the surface of component such as mainboard, battery inside mobile terminal etc..
Rear cover has backboard and encloses the side being connected on backboard.The junction of its dorsulum and the side is cambered surface.
It should be understood that making shell in the following manner: sheet metal being put into mold and strikes out preset shape
Metal plate.Wherein, sheet metal is aluminium plate, and the aluminium plate of bulk is cut into the aluminium plate of fritter, the fritter that will have been cut
Aluminium plate is put into the metal plate for carrying out being stamped and formed out preset shape in mold, it is possible to understand that, the punching press number of aluminium plate can be with
It is primary, or multiple continuous punching；Metal plate is processed on numerically-controlled machine tool, forms required shell.
S103: four cast gates 1 are set on a side of the shell.
Specifically, four cast gates 1 are set on a side of the shell, four cast gates 1 interval setting.
It should be understood that four cast gates 1 are set on the short side of the shell, cast gate 1 described in two of them divides
It is not set to the edge of the shell, other two described cast gate 1 is set between the two of them cast gate 1.
Further, at least one slag well is set in four cast gates 1.At least one described slag well is set to
On the cast gate 1 of corner far from the shell.
In one embodiment, the quantity of slag well is two.Two slag wells are respectively arranged at two far from the shell
On a cast gate 1.The plastic cement that slag well makes the leading portion performance of injection molding machine poor will not directly enter the interior table of shell by cast gate 1
On face, the plastic cement for avoiding performance poor injection molding on shell further improves the reliability of shell.
S105: four cast gates 1 are molded.
Specifically, making the injection hole of the injection molding machine respectively correspond four cast gates 1, so that the modeling in the injection molding machine
Glue is flowed through on the inner surface of the shell by four cast gates 1, to form preset structure on the inner surface of the shell
2。
It should be understood that the shell is clamped in injection mold, so that the inner surface of the shell and the injection molding
Mold forms the type chamber of the preset structure 2；
The injection hole of injection molding machine is respectively corresponded into four cast gates 1, so that the plastic cement in the injection molding machine is described in
Four cast gates 1 flow in the type chamber.
Wherein, preset structure 2 can be stud, location hole or support construction of day linear slit etc..According to actually required
It is correspondingly arranged.
Wherein, the approach for the inner surface that four cast gates 1 make plastic cement flow to shell shortens, and avoids plastic cement because longer
Flow channel and cause plastic cement temperature cooling or generate a large amount of bubble, at a temperature of effectively reducing in plastic cement flow process
The generation of bubble is dropped and reduced, so that the inner surface of preset structure after molding 2 and shell has stronger binding force, is guaranteed
Shell has preferable reliability.
It should be understood that cutting off four cast gates after the preset structure 2 on the inner surface of the shell is cooled and shaped
1。
The processing method of shell provided in an embodiment of the present invention by four cast gates 1 of setting on a side of shell,
Four different locations of the plastic cement of injection molding machine a side are flowed on the inner surface of shell, the stream of plastic cement is accelerated
It is dynamic, reduce plastic cement because flow channel is too long cool down caused by shrink bad problem, improve preset structure 2 and shell
The binding force of inner surface enhances the reliability of shell.
Below in conjunction with attached drawing 1- attached drawing 4, a kind of processing method for shell that first embodiment of the invention provides is carried out
It is discussed in detail.
Fig. 3 is referred to, is a kind of flow diagram of the processing method of shell provided in an embodiment of the present invention.Such as Fig. 3 institute
Show, the method for the embodiment of the present invention may comprise steps of S201- step S209.
S201: shell is provided.
Specifically, shell can be the rear cover or back-cover of mobile terminal.
Shell is made according to actual needs, it is possible to understand that, shell can be the rear cover of mobile terminal.Wherein, shell has
There are outer surface and inner surface, outer surface is that shell is exposed to the surface in air, i.e., can be direct when user uses mobile terminal
The surface touched；Inner surface is then the surface of component such as mainboard, battery inside mobile terminal etc..
Rear cover has backboard and encloses the side being connected on backboard.The junction of its dorsulum and the side is cambered surface.
It should be understood that making shell in the following manner: sheet metal being put into mold and strikes out preset shape
Metal plate.Wherein, sheet metal is aluminium plate, and the aluminium plate of bulk is cut into the aluminium plate of fritter, the fritter that will have been cut
Aluminium plate is put into the metal plate for carrying out being stamped and formed out preset shape in mold, it is possible to understand that, the punching press number of aluminium plate can be with
It is primary, or multiple continuous punching；Metal plate is processed on numerically-controlled machine tool, forms required shell.
S203: four cast gates 1 are set on a side of the shell.
Specifically, four cast gates 1 are set on a side of the shell, four cast gates 1 interval setting.
It should be understood that referring to figure 2., four cast gates 1 are set on the short side of the shell, two of them institute
State the edge that cast gate 1 is respectively arranged at the shell, other two described cast gate 1 be set to the two of them cast gate 1 it
Between.
Further, at least one slag well is set in four cast gates 1.At least one described slag well is set to
On the cast gate 1 of corner far from the shell.
In one embodiment, the quantity of slag well is two.Two slag wells are respectively arranged at two far from the shell
On a cast gate 1.The plastic cement that slag well makes the leading portion performance of injection molding machine poor will not directly enter the interior table of shell by cast gate 1
On face, the plastic cement for avoiding performance poor injection molding on shell further improves the reliability of shell.
S205: a day linear slit is opened up on shell.
S207: Suction jig is directed at the day linear slit.
Specifically, Suction jig is directed at the day linear slit, with during injection molding machine injection molding, the air-breathing is controlled
Tool generates suction to the plastic cement on the inner surface of the shell through the day linear slit.
A day linear slit is opened up on shell, this day linear slit will not cut off shell, and the effect of this day linear slit is mainly used for being subsequent
Suction jig provide opening so that Suction jig injection molding machine be molded during, in the type chamber of shell flow mould
Glue forms biggish suction, to improve the mobile performance of plastic cement, the bubble of less plastic cement improves the reliability of shell.
S209: four cast gates 1 are molded.
Specifically, making the injection hole of the injection molding machine respectively correspond four cast gates 1, so that the modeling in the injection molding machine
Glue is flowed through on the inner surface of the shell by four cast gates 1, to form preset structure on the inner surface of the shell
2。
It should be understood that the shell is clamped in injection mold, so that the inner surface of the shell and the injection molding
Mold forms the type chamber of the preset structure 2；
The injection hole of injection molding machine is respectively corresponded into four cast gates 1, so that the plastic cement in the injection molding machine is described in
Four cast gates 1 flow in the type chamber.
Wherein, preset structure 2 can be stud, location hole or support construction of day linear slit etc..According to actually required
It is correspondingly arranged.
Wherein, the approach for the inner surface that four cast gates 1 make plastic cement flow to shell shortens, and avoids plastic cement because longer
Flow channel and cause plastic cement temperature cooling or generate a large amount of bubble, at a temperature of effectively reducing in plastic cement flow process
The generation of bubble is dropped and reduced, so that the inner surface of preset structure after molding 2 and shell has stronger binding force, is guaranteed
Shell has preferable reliability.
Further, during injection molding, Suction jig passes through day linear slit to the flowing modeling in the type chamber of shell simultaneously
Glue forms biggish suction, to improve the mobile performance of plastic cement, the bubble of less plastic cement improves the reliability of shell.
It should be understood that cutting off four cast gates after the preset structure 2 on the inner surface of the shell is cooled and shaped
1。
The processing method of shell provided in an embodiment of the present invention by four cast gates 1 of setting on a side of shell,
Four different locations of the plastic cement of injection molding machine a side are flowed on the inner surface of shell, the stream of plastic cement is accelerated
It is dynamic, reduce plastic cement because flow channel is too long cool down caused by shrink bad problem, improve preset structure 2 and shell
The binding force of inner surface enhances the reliability of shell.
Referring to figure 4., to mobile terminal 100 provided in an embodiment of the present invention.In the present embodiment, mobile terminal 100 wraps
Include shell 11, wherein the present embodiments relate to mobile terminal 100 can be and any have setting for communication and store function
It is standby, such as: tablet computer, mobile phone, electronic reader, remote controler, personal computer (Personal Computer, PC), notes
This computer, mobile unit, Web TV, wearable device etc. have the smart machine of network function.
In the present embodiment, shell 11 can be the rear cover or back-cover of mobile terminal 100.Shell 11 is by signal shielding material system
At, it is possible to understand that, signal shielding material is metal.
Preset structure on the inner surface of the shell 11 is fabricated by Fig. 1 or processing method of casing shown in Fig. 3.
The module or unit of the embodiment of the present invention can be combined or be split according to actual needs.
It is the embodiment of the embodiment of the present invention above, it is noted that those skilled in the art are come
It says, without departing from the principles of the embodiments of the present invention, several improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of processing method of shell characterized by comprising
Shell is provided；
Four cast gates, four cast gate intervals setting are set on a side of the shell；
A day linear slit is opened up on shell；
Suction jig is directed at the day linear slit, with during injection molding machine is molded, the Suction jig is through the day linear slit
Suction is generated to the plastic cement on the inner surface of the shell, the effect of this day linear slit is mainly used for providing for subsequent Suction jig
Opening so that the Suction jig injection molding machine be molded during, pile up in the type chamber of shell flow plastic cement formed it is larger
Suction, to improve the mobile performance of plastic cement；
The injection hole of the injection molding machine is set to respectively correspond four cast gates, so that the plastic cement in the injection molding machine passes through described four
A cast gate flows through on the inner surface of the shell, to form preset structure on the inner surface of the shell.
2. the method according to claim 1, wherein four cast gates to be set to the short side of the shell
On, cast gate described in two of them is respectively arranged at the edge of the shell, other two described cast gate be set to it is described wherein
Between two cast gates.
3. the method according to claim 1, wherein at least one slag well is arranged in four cast gates.
4. according to the method described in claim 3, it is characterized in that, at least one described slag well is set to far from the shell
Corner cast gate on.
5. the method according to claim 1, which is characterized in that the injection hole for making the injection molding machine
In the step of respectively corresponding four cast gates, comprising:
The shell is clamped in injection mold, so that the inner surface of the shell and the injection mold form described preset
The type chamber of structure；
The injection hole of injection molding machine is respectively corresponded into four cast gates, so that the plastic cement in the injection molding machine is poured by described four
Mouth flows in the type chamber.
6. the method according to claim 1, wherein respectively corresponding institute in the injection hole for making the injection molding machine
After the step of stating four cast gates, the method also includes:
After the preset structure on the inner surface of the shell is cooled and shaped, four cast gates are cut off.
7. the method according to claim 1, wherein the shell is the rear cover of mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931917.7A CN107839144B (en) | 2017-09-30 | 2017-09-30 | A kind of processing method of shell, shell and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710931917.7A CN107839144B (en) | 2017-09-30 | 2017-09-30 | A kind of processing method of shell, shell and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107839144A CN107839144A (en) | 2018-03-27 |
| CN107839144B true CN107839144B (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710931917.7A Active CN107839144B (en) | 2017-09-30 | 2017-09-30 | A kind of processing method of shell, shell and mobile terminal |
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| Country | Link |
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| CN (1) | CN107839144B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112968983B (en) * | 2019-12-13 | 2022-03-01 | Oppo广东移动通信有限公司 | Electronic equipment and preparation method of electronic equipment protective film |
| CN112291982B (en) * | 2020-10-26 | 2022-04-19 | 安徽卓上智能科技有限公司 | Intelligent voice recognition device's damp proof heat structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328909A (en) * | 2000-06-19 | 2002-01-02 | 株式会社日立制作所 | Metal plate and resin mixed structure shell |
| CN204183833U (en) * | 2014-09-09 | 2015-03-04 | 创意塑胶工业（苏州）有限公司 | With the injection mold of Vacuuming structure |
| CN106079237A (en) * | 2016-06-27 | 2016-11-09 | 广东欧珀移动通信有限公司 | Housing forming method, housing and electronic installation |
| CN106827400A (en) * | 2016-12-20 | 2017-06-13 | 广东长盈精密技术有限公司 | Injection moulding process and injection mold |
| CN104924529B (en) * | 2015-05-29 | 2017-06-27 | 浙江鑫鼎塑业有限公司 | The tray die of convenient injection footing |
-
2017
- 2017-09-30 CN CN201710931917.7A patent/CN107839144B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328909A (en) * | 2000-06-19 | 2002-01-02 | 株式会社日立制作所 | Metal plate and resin mixed structure shell |
| CN204183833U (en) * | 2014-09-09 | 2015-03-04 | 创意塑胶工业（苏州）有限公司 | With the injection mold of Vacuuming structure |
| CN104924529B (en) * | 2015-05-29 | 2017-06-27 | 浙江鑫鼎塑业有限公司 | The tray die of convenient injection footing |
| CN106079237A (en) * | 2016-06-27 | 2016-11-09 | 广东欧珀移动通信有限公司 | Housing forming method, housing and electronic installation |
| CN106827400A (en) * | 2016-12-20 | 2017-06-13 | 广东长盈精密技术有限公司 | Injection moulding process and injection mold |
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| CN107839144A (en) | 2018-03-27 |
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Address after: 523860 No. 18, Wu Sha Beach Road, Changan Town, Dongguan, Guangdong Applicant after: OPPO Guangdong Mobile Communications Co., Ltd. Address before: 523860 No. 18 Wusha Haibin Road, Chang'an Town, Dongguan City, Guangdong Province Applicant before: Guangdong OPPO Mobile Communications Co., Ltd. |
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