CN106973536A - Metal center processing technology, metal center and electronic installation - Google Patents
Metal center processing technology, metal center and electronic installation Download PDFInfo
- Publication number
- CN106973536A CN106973536A CN201710323023.XA CN201710323023A CN106973536A CN 106973536 A CN106973536 A CN 106973536A CN 201710323023 A CN201710323023 A CN 201710323023A CN 106973536 A CN106973536 A CN 106973536A
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- Prior art keywords
- middle plate
- frame
- metal center
- plate
- processing technology
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Classifications
-
- 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
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- 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
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
-
- 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
- B29C2045/1486—Details, accessories and auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3406—Components, e.g. resistors
Abstract
The present invention relates to a kind of metal center, metal center processing technology and the electronic installation for including the metal center.Metal center includes middle plate, the frame for setting and being connected with the edge of the middle plate by butt welding around the middle plate, and the plastic parts by injection molding between the middle plate and the frame in gap.Metal center processing technology comprises the following steps：Pass through extrusion process and CNC technique machine-shaping frames；Plate in being molded using extrusion process；The middle plate is connected in the frame by butt welding；The plastic cement of melting is injected between the middle plate and the frame in gap；Cool down and the metal center after shaping is surface-treated.Connection reliable and stable between plate and frame in so realizing, saves the processing capacity of CNC techniques, so as to reduce the process time of whole metal center, then reduces the manufacturing cost of metal center；Meanwhile, be conducive to improving the surface treatment quality of metal center.
Description
Technical field
The present invention relates to technical field of communication equipment, more particularly to a kind of metal center, metal center processing technology and
Include the electronic installation of the metal center.
Background technology
In the electronic equipment such as smart mobile phone and palm PC, generally using middle frame structure, the center of this kind of structure includes
Middle plate and frame, usually, center has a variety of molding modes.
For example, center molds center crude green body by way of pier pressure or punching press, then center crude green body is added by CNC techniques
Work is into center product, but CNC processing capacities are too big, cause process time long, and cost is too high.
And for example, extrusion process machine-shaping center crude green body is first passed through, then the local CNC that carries out of center crude green body is formed
Center product, although CNC processing capacities can be reduced, but be detrimental to the anode oxidation process of center, cause its presentation quality poor.
For another example, the frame after completion of processing is put into die casting by CNC working processes, passes through die casting by frame
Mode forms the middle plate being connected with frame, so that center machine-shaping.Because there is larger deflection in the frame after die casting,
Need to increase corresponding correction process, equally exist process time and the too high defect of cost.
The content of the invention
The technical problem that the present invention is solved is how to improve the production efficiency of metal center.
A kind of metal center, including：Middle plate, sets around the middle plate and is connected with the edge of the middle plate by butt welding
The frame connect, and the plastic parts by injection molding between the middle plate and the frame in gap.
In one of the embodiments, the frame includes the solder side that is connected with the middle plate weld, and with the weldering
Junction connects and is used for the step surface for supporting the middle plate.
In one of the embodiments, it is provided with and the modeling on the edge of the middle plate and the inner surface of the frame
The reinforcement attachment structure that glue part coordinates.
In one of the embodiments, the attachment structure of strengthening includes mutually forming some reinforcements of uneven structure
Groove or reinforced hole.
In one of the embodiments, the strengthening groove includes dovetail groove or rectangular channel.
A kind of electronic installation, including any of the above-described described metal center.
A kind of metal center processing technology, comprises the following steps：
Pass through extrusion process and CNC technique machine-shaping frames；
Plate in being molded using extrusion process；
The middle plate is connected in the frame by butt welding；
The plastic cement of melting is injected between the middle plate and the frame in gap；
Cool down and the metal center after shaping is surface-treated.
In one of the embodiments, before the middle plate and frame welding, by the frame and the middle plate
Carry out nanosizing processing.
In one of the embodiments, the nanosizing processing comprises the following steps：
Degreasing and decontamination are carried out to the middle plate and the frame；
The middle plate and the frame are put into solution containing amine substance and soak setting time and in the side of the middle plate
Corrosion forms pits on the inner surface of edge and the frame；
The middle plate and the frame after corrosion is washed and dried.
In one of the embodiments, the process of surface treatment comprises the following steps：
The outer surface of the frame and middle plate is put down by CNC technique millings；
Sandblasting and anodized are carried out to outer surface of the milling after flat.
One of one embodiment of the present of invention reduces it on the basis of having the technical effect that guarantee metal center presentation quality
Manufacturing cost.
Brief description of the drawings
Fig. 1 is the structural representation of sheet material；
The structural representation of the frame for the metal center that Fig. 2 provides for an embodiment；
The structural representation of the middle plate for the metal center that Fig. 3 provides for an embodiment；
Fig. 4 is mplifying structure schematic diagram at A in Fig. 3；
The structural representation for the metal center that Fig. 5 provides for an embodiment；
The diagrammatic cross-section for the metal center for not carrying out butt welding connection that Fig. 6 provides for an embodiment；
The diagrammatic cross-section for the metal center for having carried out butt welding connection that Fig. 7 provides for an embodiment；
Fig. 8 is the FB(flow block) of metal center processing technology；
Fig. 9 is the FB(flow block) of nanosizing handling process.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.But, the present invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure
Plus it is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " interior ", " outer ", "left", "right" and
For illustrative purposes only, it is unique embodiment to be not offered as similar statement.
Simultaneously refering to Fig. 5, a kind of metal center, including frame 100, middle plate 200 and plastic parts 300.Middle plate 200 is substantially in
Tabular, frame 100 is annular mount structure.Frame 100 is set around the edge of middle plate 200, and frame 100 passes through with middle plate 200
Butt welding is connected.Plastic parts 300 is filled in by way of injection molding in the gap between middle plate 200 and frame 100.
Because middle plate 200 and frame 100 are by the way of split setting, the side of butt welding connection is first passed through between the two
Formula is fixed, then by the plastic parts 300 of injection molding with connection reliable and stable between plate in realization 200 and frame 100,
The processing capacity of CNC techniques is so saved, so as to reduce the process time of whole metal center, metal center is then reduced
Manufacturing cost；Meanwhile, be conducive to improving the surface treatment quality of metal center.Therefore, it is being welded to connect and plastic parts 300
Under collective effect, the bonding strength between frame 100 and middle plate 200 is greatly improved.
Simultaneously refering to Fig. 7 and Fig. 8, in certain embodiments, frame 100 includes solder side 110 and step surface 120, welding
Face 110 is used to be welded to connect with middle plate 200, and step surface 120 is connected with solder side 110, and both may be constructed one and are mutually perpendicular to
L-type structure, the centering plate 200 of step surface 120 plays support and appropriate positioning action.Solder side 110 is relative with middle plate 200 to be set
Put, the bottom of middle plate 200 is carried on the step surface 120 of frame 100.Before welding, the welding of middle plate 200 and frame 100
Face 110 keeps certain gap (butt weld 410), welds after finishing, weld metal 400 is filled in the gap.
It is noted that due to using butt welding between frame 100 and middle plate 200, welding after finishing, middle plate 200
No longer there is gap with the solder side 110 of frame 100, middle plate 200 and frame 100 exist between part corresponding with antenna jointly
Certain interval.Therefore, no longer injection moulding plastic part 300 between the solder side 110 of middle plate 200 and frame 100, has saved and has been molded into
This；Plastic parts 300 is only moulded in middle plate 200 and frame 100 jointly between part corresponding with antenna, and plastic parts 300 is used to prevent
Stop signal is shielded, meanwhile, also function to the effect for strengthening connecting middle plate 200 and frame 100.
Simultaneously refering to Fig. 3 to Fig. 5, on the edge of middle plate 200 and the inner surface of frame 100 (at position corresponding with antenna)
Reinforcement attachment structure 210 is provided with, in certain embodiments, strengthens attachment structure 210 and is some strengthening grooves 211 or strengthens
Hole, rough structure is mutually formed between some strengthening grooves 211 or reinforced hole.Strengthening groove 211 can be with dovetail groove, rectangular channel
Or arc-shaped slot etc., strengthening groove 211 and reinforced hole can be arranged alternately., can be obvious due to setting strengthening groove 211 or reinforced hole
Strengthen and antenna corresponding position plastic parts 300 is with the bonding strength between middle plate 200 and frame 100.
In injection moulding process, the plastic cement of melting is penetrated into strengthening groove 211 or reinforced hole, after cooling and shaping, the modeling of solidification
A kind of indenting occluding relation is formed between glue part 300 and middle plate 200 and frame 100, plastic parts 300 and middle plate is enhanced
200 and the bonding strength of frame 100, it is ensured that metal center possesses good drop resistant and shock resistance, improves metal center
Service life.
In certain embodiments, pits are formed with middle plate 200 and frame 100, pits can be located at
In strengthening groove 211 or reinforced hole, the middle edge of plate 200 can also be located at and the inner surface of frame 100 is different from strengthening groove 211 or strengthened
On other positions in hole.Melt plastic cement is injected into pits by injector, and the plastic parts 300 after solidification passes through nanometer
Level pit is produced " crab-bolt effect " with middle plate 200 and frame 100, and plastic parts 300 is reliably confined in frame 100 and middle plate
On 200, the adhesion between plastic parts 300 and frame 100 and middle plate 200 is further strengthened, lifting metal center is external
The resistivity of boundary's impact.
The present invention also provides a kind of metal center processing technology, refering to Fig. 8, including following key step:
S410, by extrusion process and CNC techniques by the machine-shaping frame 100 of sheet material 10.First, at the same refering to Fig. 1 and
Fig. 2, processes sheet material 10 by extrusion process the frame embryo material for forming ring-type, then frame embryo material is entered by a small amount of CNC techniques
Row partial operation is to be molded frame 100, for example, strengthening groove 211 or reinforced hole etc. are processed on frame embryo material strengthens attachment structure
210 etc..
S420, plate 200 in being molded using extrusion process.Simultaneously refering to Fig. 3 and Fig. 4, by die casting machine by the metal of melting
Injected under high-voltage high-speed in compression mod, and plate 200 in curing molding under high pressure, strengthening groove 211 or reinforced hole etc. are strengthened connecting
The disposal molding in compression mod of binding structure 210.Extrusion process eliminates the CNC manufacturing procedures of complexity, improves metal center
Processing efficiency, the middle plate 200 after die cast has surface roughness good, the big advantage of mechanical strength, meanwhile, reduce
The allowance of CNC processes, has saved the cost of raw material.
S430, the middle plate 200 is connected in the frame 100 by butt welding.Simultaneously refering to Fig. 5 to Fig. 7, weldering
Before connecing, middle plate 200 is placed on the step surface 120 of frame 100, bottom and the step surface 120 of middle plate 200 keep contacting,
The centering plate 200 of step surface 120 provides support and positioning action, meanwhile, the sidepiece of middle plate 200 and the solder side 110 of frame 100 it
Between keep appropriate gap to form butt weld 410, so that weld metal 400 is filled in the butt weld 410.Certainly,
To improve weld strength, the need for actual conditions, groove can be opened up in butt weld 410, the shape of groove can be U
Type, V-type, X-type or K-type etc..After butt welding is finished, the upper surface certain altitude of plate 200 during weld metal 400 may protrude,
At this point it is possible to the weld metal 400 gone out using CNC finish-milling technique milling plano-convexs, it is ensured that the surface quality of metal center.
S440, the plastic cement of melting is injected between middle plate 200 and frame 100 in gap.It is first simultaneously refering to Fig. 5 to Fig. 7
First the frame 100 being welded and middle plate 200 are clipped in mold cavity, then by injector by plate in the injection of the plastic cement of melting
Between 200 and frame 100 in gap, the plastic cement of melting penetrates into the strengthening groove 211 on middle plate 200 and frame 100 or added simultaneously
Qiang Kongzhong, after the plastic cement of melting is frozen into plastic parts 300 of solid-state, plastic parts 300 plays good connection and sealing effect,
Middle plate 200 and frame 100 can be combined into the metal center of an entirety, it is ensured that metal center possesses good mechanical strength.
Middle plate 200 and frame 100 can be made of aluminium alloy, stainless steel and titanium alloy etc materials.Plastic parts 300 can be with
Using PBS resins (Polybutadiene-styrene, Polybutadiene-acrylonitrile) material, PBT resin (Polybutylene
Terephthalate, polybutylene terephthalate (PBT)) (Polyphenylene sulfide gather for material or PPS resin material
Diphenyl sulfide) it is made.
S450, cools down and the metal center after shaping is surface-treated.Due to melting plastic cement frame 100 with
Excessive phenomenon is there may be in gap between plate 200, so as to cause the plastic parts after coagulation forming 300 with respect to the He of frame 100
Protrude certain height in the outer surface of middle plate 200.Therefore, after the coagulation forming of plastic parts 300, using CNC finish-milling technique milling plano-convexs
The plastic parts 300 gone out, it is ensured that the presentation quality of metal center.In certain embodiments, can be by frame 100 and middle plate 200
The certain thickness of outer surface milling, further to improve the flatness of metal center outer surface.
Then blasting treatment is carried out to metal center outer surface of the milling after flat, in certain embodiments, can be using machinery
Sand blasting process obtains Aluminum profile on outer frame surface in a metal, for example, by compressed air by abrasive material (diamond dust, stone
Sand, copper ore or iron sand etc.) injection is to the outer surface of frame 100 and middle plate 200 at a high speed, in the abrasive material sprayed at a high speed to rushing
Hit with shear action, the pollutant such as grease adhered on metal center is eliminated, so that frame 100 and middle plate 200 is outer
The mechanical performance of surface acquisition certain cleannes and roughness, frame 100 and middle plate 200 is improved, and is improved in metal
The wearability of the fatigue resistance of frame and its outer surface, strengthens the adhesive force of subsequent oxidation film, so as to extend the durable of oxide-film
Property.In other embodiments, it can be acted on by the pitting of chemical mediator on metal center outer surface and obtain chemical etching granulation.
Finally, anodized is carried out to the outer surface after blasting treatment.Using metal center as anode, in electrolyte
Middle reaction setting time, the outer surface of metal center forms layer oxide film, and the oxide-film can be 20 μm or so.Due to the oxygen
Change the effect of film, improve the hardness and abrasion resistance properties of metal center outer surface, extend the service life of metal center.
In certain embodiments, before middle plate 200 and the butt welding of frame 100, frame 100 and middle plate 200 are carried out
Nanosizing processing.Further to improve the adhesion between plastic parts 300 and frame 100 and middle plate 200.Refering to Fig. 9, nanosizing
Processing mainly comprises the following steps：
S510, first, centering plate 200 and frame 100 carry out degreasing and decontamination.During machine-shaping, the middle He of plate 200
Grease and other pollutants are attached with frame 100, middle plate 200 and frame 100 are immersed to soak in the alkali lye of certain pH value set
Fix time, centering plate 200 and frame 100 are carried out effectively degreasing and abatement processes by alkali lye.Then, by middle plate 200 and frame
100 take out from alkali lye and are soaked a period of time in the acid solution of certain pH value, so as to will be attached on middle plate 200 and frame 100
Alkali lye neutralized.
S520, then, leaching in solution containing amine substance (T liquid, Taiseiplas liquid) is put into by middle plate 200 and frame 100
Steep and corrosion is formed into cellular pits on setting time, the edge of middle plate 200 and the inner surface of frame 100.This is received
The sectional dimension of meter level pit is B, and B span can be 20nm≤B≤40nm.
S530, finally, is washed and is dried to the middle plate 200 and frame 100 after corrosion, so as to the note of melt plastic cement
Penetrate.
Due to being formed with pits on middle plate 200 and frame 100, the plastic cement of melting can equally penetrate into wherein, so that
The plastic parts after shaping 300 is set to be formed " crab-bolt effect " with middle plate 200 and frame 100, plastic parts 300 and frame 100 and middle plate
Adhesion between 200 is significantly strengthened.
The present invention also provides a kind of electronic installation, and the electronic installation includes metal center as described above.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of metal center, it is characterised in that including：Middle plate, sets around the middle plate and leads to the edge of the middle plate
Cross the frame of butt welding connection, and the plastic parts by injection molding between the middle plate and the frame in gap.
2. metal center according to claim 1, it is characterised in that the frame includes what is be connected with the middle plate weld
Solder side, and the step surface for supporting the middle plate is connected and is used for the solder side.
3. metal center according to claim 1, it is characterised in that the edge of the middle plate and the inner surface of the frame
On be provided with the plastic parts coordinate reinforcement attachment structure.
4. metal center according to claim 3, it is characterised in that the reinforcement attachment structure includes mutually forming bumps
Not some strengthening grooves or reinforced hole of flat structure.
5. metal center according to claim 4, it is characterised in that the strengthening groove includes dovetail groove or rectangular channel.
6. a kind of electronic installation, it is characterised in that including the metal center as any one of claim 1 to 5.
7. a kind of metal center processing technology, it is characterised in that comprise the following steps：
Pass through extrusion process and CNC technique machine-shaping frames；
Plate in being molded using extrusion process；
The middle plate is connected in the frame by butt welding；
The plastic cement of melting is injected between the middle plate and the frame in gap；
Cool down and the metal center after shaping is surface-treated.
8. metal center processing technology according to claim 7, it is characterised in that welded in the middle plate and the frame
Before, the frame and the middle plate are subjected to nanosizing processing.
9. metal center processing technology according to claim 8, it is characterised in that the nanosizing processing includes following step
Suddenly：
Degreasing and decontamination are carried out to the middle plate and the frame；
The middle plate and the frame are put into solution containing amine substance soak setting time and in the edge of the middle plate and
Corrosion forms pits on the inner surface of the frame；
The middle plate and the frame after corrosion is washed and dried.
10. metal center processing technology according to claim 7, it is characterised in that the process of surface treatment is included such as
Lower step：
The outer surface of the frame and middle plate is put down by CNC technique millings；
Sandblasting and anodized are carried out to outer surface of the milling after flat.
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| CN201710323023.XA CN106973536A (en) | 2017-05-09 | 2017-05-09 | Metal center processing technology, metal center and electronic installation |
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| CN201710323023.XA CN106973536A (en) | 2017-05-09 | 2017-05-09 | Metal center processing technology, metal center and electronic installation |
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| CN107517556A (en) * | 2017-09-21 | 2017-12-26 | 广东欧珀移动通信有限公司 | Cover plate of electronic equipment and preparation method thereof and electronic equipment |
| CN107683055A (en) * | 2017-09-21 | 2018-02-09 | 广东欧珀移动通信有限公司 | Cover plate of electronic equipment and preparation method thereof and electronic equipment |
| CN108039559A (en) * | 2017-12-01 | 2018-05-15 | 广东欧珀移动通信有限公司 | Metal base, center component and electronic equipment |
| CN108054496A (en) * | 2017-12-01 | 2018-05-18 | 广东欧珀移动通信有限公司 | Metal base, center component and electronic equipment |
| CN108566454A (en) * | 2018-02-27 | 2018-09-21 | 努比亚技术有限公司 | A kind of center and terminal |
| CN108819093A (en) * | 2018-06-29 | 2018-11-16 | Oppo广东移动通信有限公司 | Processing method, center component and the electronic device of center component |
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| CN113131185A (en) * | 2021-03-24 | 2021-07-16 | 联想(北京)有限公司 | Electronic equipment shell manufacturing method and electronic equipment shell |
| CN113618338A (en) * | 2018-02-05 | 2021-11-09 | Oppo广东移动通信有限公司 | Middle frame assembly, middle frame assembly machining method and electronic device |
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| CN107683055A (en) * | 2017-09-21 | 2018-02-09 | 广东欧珀移动通信有限公司 | Cover plate of electronic equipment and preparation method thereof and electronic equipment |
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