CN105603487B - Preparation method, metal shell and the electronic equipment of anodized metallization housing - Google Patents
Preparation method, metal shell and the electronic equipment of anodized metallization housing Download PDFInfo
- Publication number
- CN105603487B CN105603487B CN201610010302.6A CN201610010302A CN105603487B CN 105603487 B CN105603487 B CN 105603487B CN 201610010302 A CN201610010302 A CN 201610010302A CN 105603487 B CN105603487 B CN 105603487B
- Authority
- CN
- China
- Prior art keywords
- housing
- solid shape
- sheet metal
- carried out
- shape housing
- 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.)
- Expired - Fee Related
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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
- H05K5/04—Metal casings
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/14—Producing integrally coloured layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/243—Chemical after-treatment using organic dyestuffs
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a kind of preparation method, metal shell and the electronic equipment of anodized metallization housing.This method includes：Pre-treatment is carried out to sheet metal；Hot-forming, formation solid shape housing is carried out to the sheet metal；Anode oxidation process is carried out to the solid shape housing, anodized metallization housing is obtained.The present invention only needs an anode oxidation process, you can obtains required anodized metallization housing, simplifies moulding process, reduce cost of manufacture, improve yield.
Description
Technical field
The present embodiments relate to housing preparing technical field, more particularly to a kind of preparation side of anodized metallization housing
Method, metal shell and electronic equipment.
Background technology
Anodised aluminium surface of shell advantageous effect is that coloring stabilized, intensity is high, frivolous, corrosion resistance strong, metallic
Sense is outstanding, resistant anti-fingerprint, thermal conductivity are good etc. so that the texture of housing entirety, which seems, compares higher gears.
But conventional Al-alloy casing makes, it is necessary to aluminium extruded (cylindricality aluminium is cut and extruded), surface grinding, slightly
Milling inner chamber, milling antenna slot, T processing (aluminium is processed into the surface that can be combined with engineering plastics), NMT (Nano
Molding Technology, nanometer forming technique) it is nanometer injection, finish-milling cambered surface, finish-milling side, polishing, sandblasting, once positive
Ten multiple working procedures such as pole, bloom processing, finish-milling inner chamber, secondary anode are processed, complex procedures so that processing cost is higher,
Yield is relatively low.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of preparation method, metal shell and the electricity of anodized metallization housing
Sub- equipment, to simplify moulding process, reduces cost, improves yield.
In a first aspect, the embodiments of the invention provide a kind of preparation method of anodized metallization housing, methods described bag
Include：
Pre-treatment is carried out to sheet metal；
Hot-forming, formation solid shape housing is carried out to the sheet metal；
Anode oxidation process is carried out to the solid shape housing, anodized metallization housing is obtained.
Second aspect, the embodiment of the present invention additionally provides a kind of anodized metallization housing, the anodized metallization shell
Body is prepared from using the preparation method of the anodized metallization housing described in any embodiment of the present invention.
The third aspect, the embodiment of the present invention additionally provides a kind of electronic equipment, and it is any that the electronic equipment includes the present invention
Anodized metallization housing described in embodiment.
The technical scheme of the embodiment of the present invention, by carrying out pre-treatment to sheet metal, using mould to the metallic plate
Material carries out hot-forming, formation solid shape housing, carries out anode oxidation process to the solid shape housing, obtains anodic oxygen
Change metal shell, only need an anode oxidation process, you can obtain required anodized metallization housing, simplify shaping work
Skill, reduces cost of manufacture, improves yield.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the preparation method for anodized metallization housing that the embodiment of the present invention one is provided；
Fig. 2 is utilization mould in the preparation method of anodized metallization housing provided in an embodiment of the present invention to the gold
Belong to sheet material and carry out hot-forming flow chart；
Fig. 3 a-3d are utilization moulds in the preparation method of anodized metallization housing provided in an embodiment of the present invention to institute
State sheet metal and carry out hot-forming process schematic；
Fig. 4 is a kind of flow chart of the preparation method for anodized metallization housing that the embodiment of the present invention two is provided；
Fig. 5 is a kind of flow chart of the preparation method for anodized metallization housing that the embodiment of the present invention three is provided.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than full content are illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of flow chart of the preparation method for anodized metallization housing that the embodiment of the present invention one is provided, this reality
The situation that example can be used conveniently to prepare anodized metallization housing is applied, following steps are specifically included：
Step 110, pre-treatment is carried out to sheet metal.
Wherein, the sheet metal is preferably included：Aluminium plate, aluminum alloy plate materials, aluminium-magnesium alloy sheet or zinc alloy plate,
The thickness of the sheet metal is preferably 0.3-1.5 millimeters.When the sheet metal is aluminum alloy plate materials, sheet material model can be with
For：Aluminium alloy 5083, aluminium alloy 5052 or aluminium alloy 6063.
The pre-treatment such as it is polished, cleans to sheet metal first, to improve sheet metal surface gloss, and removes surface
Greasy dirt.
Wherein, pre-treatment is carried out to sheet metal to preferably include：
Sheet metal is processed by shot blasting；
The sheet metal after solvent wiping polishing is bedewed using absorbent cotton, with except degreasing；
Sheet metal is wiped with non-dust cloth.
Sheet metal is processed by shot blasting, primarily to eliminating the mechanical defect of plate surface, reduces rough surface
Degree, and improve its lustrous surface.The sheet metal after solvent wiping polishing is bedewed using absorbent cotton, metallic plate can be removed
The greasy dirt on material surface, then sheet metal is wiped with clean non-dust cloth, it is wipe several times, to remove the molten of sheet metal surface more
Agent, dries sheet metal surface.
Wherein, sheet metal is processed by shot blasting to realize using phosphoric acid, i.e., sheet metal is immersed in phosphoric acid
In solution, so as to eliminate the mechanical defect of plate surface, reduce surface roughness, and improve its lustrous surface.
Step 120, hot-forming, formation solid shape housing is carried out to the sheet metal.
Hot pressing is using sheet metals such as aluminium plate, aluminum alloy plate materials, aluminium-magnesium alloy sheet or zinc alloy plates and heated
During to plasticization softening temperature, using the combination of high pressure and vacuum, make sheet metal in hot bending, form a solid shape
Housing.
Wherein, it is hot-forming to sheet metal progress, form solid shape housing and specifically include：
Hot-forming, formation solid shape housing is carried out to the sheet metal using mould.
By the way that sheet metal is heated into plasticization softening temperature, using the combination of high pressure and vacuum, sheet metal is set to exist
Hot bending in mold cavity, forms a solid shape housing.
Step 130, anode oxidation process is carried out to the solid shape housing, obtains anodized metallization housing.
Anode oxidation process is carried out to the solid shape housing, color, rakish anodized metallization is produced
Housing, and make the anodized metallization housing that there is the ability for preventing finger mark, color spot and grease from being contaminated.
Wherein, anode oxidation process is carried out to the solid shape housing, obtains anodized metallization housing and preferably include：
Activation process is carried out to the solid shape housing, to increase the hole of the solid shape housing；
Solid shape housing after activation process is dyed；
Sealing pores are carried out to the solid shape housing after dyeing, anodized metallization housing is obtained.
First, by the way that the solid shape housing is soaked in activated solution, the solid shape housing is lived
Change is handled, to increase the space of shown solid shape housing, improves the effect that dyestuff is adsorbed in subsequent processing, and the solution is acid
Liquid, can be organic acid, inorganic acid or acylate etc., such as sulfuric acid, oxalic acid or boric acid；Then, by by after activation process
Solid shape housing soaks in coloring agent, the solid shape housing is dyed, for needed for being caught solid shape housing
Color；By the space closing for being dyed to solid shape housing, anodized metallization housing is obtained, metalwork quality is improved
With dyeing firmness, appearance deformation is prevented, having metal shell prevents finger mark, the ability that color spot and grease are contaminated.
Wherein, sealing pores are carried out to the solid shape housing after dyeing, can be using bichromate closing：It is usually used
Lock solution be 5%-10% potassium dichromate aqueous solution, operation temperature be 90-95 DEG C, off-period is 30min, precipitation
In must not have chloride or sulfate.
The technical scheme of the present embodiment, by carrying out pre-treatment to sheet metal, being entered using mould to the sheet metal
Row is hot-forming, forms solid shape housing, and anode oxidation process is carried out to the solid shape housing, obtains anodic oxidation gold
Belong to housing, only need an anode oxidation process, you can obtain required anodized metallization housing, simplify moulding process, drop
Low cost of manufacture, improves yield.
On the basis of above-mentioned technical proposal, Fig. 2 is the preparation of anodized metallization housing provided in an embodiment of the present invention
Hot-forming flow chart is carried out to the sheet metal using mould in method, Fig. 3 a-3d are that the embodiment of the present invention is provided
Anodized metallization housing preparation method in hot-forming process carried out to the sheet metal using mould illustrated
Figure, it is as illustrated in figs. 3 a-3d, hot-forming to sheet metal progress using mould, form solid shape housing and preferably include：
Step 121, the sheet metal is clamped using mould；
The sheet metal 1 is clamped first with mould 2, as shown in Figure 3 a.
Wherein, the mould preferably includes the structure of frosted finish effect and/or grain effect, and high pressure, vacuum are applied to metal
During vacuum forming, frosted finish effect and/or grain effect on mould is set to be presented on sheet metal (the i.e. solid shape of hot pressing naturally
Housing) surface on.
Step 122, sheet metal is heated to plasticization softening temperature；
Heating and softening system 3 is placed on sheet metal 1, then the elevated pressurization band 4 with elevated pressurization hole 41 is put
On heating and softening system 3, and sheet metal 1 is closed between the mould 2 and the elevated pressurization band 4, will had
The band 5 that vacuumizes for vacuumizing hole 51 is placed under mould, as shown in Figure 3 b, is heated sheet metal 1 using the system that heats and softens 3
To plasticization softening temperature.
Wherein, the plasticization softening temperature is preferably 350-800 degree, to cause sheet metal to complete plasticizing softening.
Step 123, apply high pressure, negative pressure of vacuum to sheet metal to be molded, form solid shape housing；
High pressure is applied to sheet metal 1 from the elevated pressurization hole 41 of elevated pressurization band 4, from vacuumizing vacuumizing for band 5
To the applying vacuum negative pressure of sheet metal 1 in hole 51, so that sheet metal is molded, solid shape housing 6 is formed, such as Fig. 3 c institutes
Show.
Wherein, the pressure of the high pressure is preferably 1-15 MPas, and the pressure of the negative pressure of vacuum is preferably 0.2-2 MPas,
With the sheet metal perfection shaping for causing plasticizing to soften.Applying high pressure, the time of negative pressure of vacuum shaping to sheet metal is preferably
3-15 minutes, it is molded with the sheet metal perfection for causing plasticizing to soften.
Step 124, the solid shape housing is blown using pneumatic gun, cools down the solid shape housing, slough mould.
Remove elevated pressurization band 4 and heat and soften system 3, reuse pneumatic gun and blow the solid shape housing 6, make described
Solid shape housing 6 is quickly cooled down, and moulding effect sloughs mould, as shown in Figure 3 d.
Embodiment two
Fig. 4 is a kind of flow chart of the preparation method for anodized metallization housing that the embodiment of the present invention two is provided, this reality
Example is applied on the basis of embodiment one, the content that bloom CNC processing is carried out to solid shape housing is added, specifically includes as follows
Step：
Step 410, pre-treatment is carried out to sheet metal.
Step 420, hot-forming, formation solid shape housing is carried out to the sheet metal.
Step 430, bloom CNC processing is carried out to the solid shape housing.
Bloom CNC processing is carried out to the solid shape housing, with aesthetic appeal effect.
Bloom CNC processing is carried out to the solid shape housing to preferably include：
Bright border bar or the processing of bright picture and text are carried out to the solid shape housing.
By carrying out the bloom CNC processing such as bright border or the processing of bright picture and text into housing to the solid figure, so that finally
Anodized metallization housing finished product be provided with the appearance such as bright border or bright picture and text, enrich the outer of anodized metallization housing
See effect.
Step 440, anode oxidation process is carried out to the solid shape housing, obtains anodized metallization housing.
The technical scheme of the present embodiment, by carrying out pre-treatment to sheet metal, is entered using mould to the sheet metal
Row is hot-forming, forms solid shape housing, bloom CNC processing is carried out to the solid shape housing, to the solid shape
Housing carries out anode oxidation process, obtains anodized metallization housing, so as to obtain required anodized metallization housing, simplifies
Moulding process, reduces cost of manufacture, improves yield, compared with embodiment one, the present embodiment passes through to solid shape shell
Body carries out bloom CNC processing, has beautified the appearance of anodized metallization housing.
Embodiment three
Fig. 5 is a kind of flow chart of the preparation method for anodized metallization housing that the embodiment of the present invention three is provided, this reality
Example is applied on the basis of embodiment one, the content that CNC cuttings are carried out to the anodized metallization housing is added, specifically includes
Following steps：
Step 510, pre-treatment is carried out to sheet metal.
Step 520, hot-forming, formation solid shape housing is carried out to the sheet metal.
Step 530, anode oxidation process is carried out to the solid shape housing, obtains anodized metallization housing.
Step 540, CNC cuttings are carried out to the anodized metallization housing.
CNC (Computerized Numerical Control are carried out to obtained anodized metallization housing
Machine, computer digital control machine tool) cutting, to cut unnecessary labor and materials, retain the solid shape of required product, obtain
To required anodized metallization housing.
The technical scheme of the present embodiment, by carrying out pre-treatment to sheet metal, being entered using mould to the sheet metal
Row is hot-forming, forms solid shape housing, and anode oxidation process is carried out to the solid shape housing, obtains anodic oxidation gold
Belong to housing, CNC cuttings are carried out to the anodized metallization housing, an anode oxidation process is only needed, you can needed for obtaining
Anodized metallization housing, simplifies moulding process, reduces cost of manufacture, improves yield, compared with embodiment one, this reality
Unnecessary labor and materials can be cut by applying example, the product of solid shape needed for obtaining.
Example IV
The embodiment of the present invention four provides a kind of anodized metallization housing, and the anodized metallization housing is appointed using the present invention
The preparation method for the anodized metallization housing that one embodiment is provided is prepared from.
Anodized metallization housing described in the present embodiment, with coloring stabilized, intensity is high, frivolous, corrosion resistance is strong, gold
Belong to the premium properties such as texture is outstanding, resistant anti-fingerprint, thermal conductivity are good, and manufacture craft is simply, low manufacture cost, and yield
It is high.
Embodiment five
The embodiment of the present invention five provides a kind of electronic equipment, and the electronic equipment includes the sun that any embodiment of the present invention is provided
Pole oxidized metal housing, the anodized metallization housing that the anodized metallization housing is provided using any embodiment of the present invention
Preparation method is prepared from.
The anodized metallization housing of electronic equipment described in the present embodiment is high, frivolous, anti-with coloring stabilized, intensity
The premium properties such as corrosivity is strong, metal-like outstanding, resistant anti-fingerprint, thermal conductivity is good, and manufacture craft is simply, is fabricated to
This is low, and yield is high.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art it is various it is obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (15)
1. a kind of preparation method of anodized metallization housing, it is characterised in that methods described includes：
Pre-treatment is carried out to sheet metal；
The sheet metal is clamped using mould；
Sheet metal is heated to plasticization softening temperature；
Apply high pressure, negative pressure of vacuum shaping to sheet metal, form solid shape housing；
The solid shape housing is blown using pneumatic gun, the solid shape housing is cooled down, sloughs mould；
Anode oxidation process is carried out to the solid shape housing, anodized metallization housing is obtained.
2. according to the method described in claim 1, it is characterised in that after mould is sloughed, the solid shape housing is entered
Before row anode oxidation process, in addition to：
Bloom CNC processing is carried out to the solid shape housing.
3. method according to claim 2, it is characterised in that bloom CNC processing is carried out to the solid shape housing and is wrapped
Include：
Bright border bar or the processing of bright picture and text are carried out to the solid shape housing.
4. according to the method described in claim 1, it is characterised in that after anodized metallization housing is obtained, in addition to：
Computer digital control machine tool CNC cuttings are carried out to the anodized metallization housing.
5. according to the method described in claim 1, it is characterised in that carrying out pre-treatment to sheet metal includes：
Sheet metal is processed by shot blasting；
The sheet metal after solvent wiping polishing is bedewed using absorbent cotton, with except degreasing；
Sheet metal is wiped with non-dust cloth.
6. method according to claim 5, it is characterised in that the solvent includes ethyl acetate, acetone, butanone or vapour
Oil.
7. according to the method described in claim 1, it is characterised in that the mould includes frosted finish effect and/or grain effect
Structure.
8. according to the method described in claim 1, it is characterised in that the plasticization softening temperature is 350-800 degree.
9. according to the method described in claim 1, it is characterised in that the pressure of the high pressure is 1-15 MPas, and the vacuum is born
The pressure of pressure is 0.2-2 MPas.
10. according to the method described in claim 1, it is characterised in that sheet metal is applied high pressure, negative pressure of vacuum shaping when
Between be 3-15 minutes.
11. according to the method described in claim 1, it is characterised in that anode oxidation process is carried out to the solid shape housing,
Obtaining anodized metallization housing includes：
Activation process is carried out to the solid shape housing, to increase the hole of the solid shape housing；
Solid shape housing after activation process is dyed；
Sealing pores are carried out to the solid shape housing after dyeing, anodized metallization housing is obtained.
12. according to any described methods of claim 1-11, it is characterised in that the thickness of the sheet metal is 0.3-1.5
Millimeter.
13. according to any described methods of claim 1-11, it is characterised in that the sheet metal includes：Aluminium plate, aluminium are closed
Golden plate material, aluminium-magnesium alloy sheet or zinc alloy plate.
14. a kind of anodized metallization housing, it is characterised in that using any described anodized metallizations of claim 1-13
The preparation method of housing is prepared from.
15. a kind of electronic equipment, it is characterised in that including the anodized metallization housing described in claim 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628536.1A CN107222998B (en) | 2016-01-05 | 2016-01-05 | Preparation method of anodized metal shell, metal shell and electronic equipment |
| CN201610010302.6A CN105603487B (en) | 2016-01-05 | 2016-01-05 | Preparation method, metal shell and the electronic equipment of anodized metallization housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610010302.6A CN105603487B (en) | 2016-01-05 | 2016-01-05 | Preparation method, metal shell and the electronic equipment of anodized metallization housing |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710628536.1A Division CN107222998B (en) | 2016-01-05 | 2016-01-05 | Preparation method of anodized metal shell, metal shell and electronic equipment |
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| Publication Number | Publication Date |
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| CN105603487A CN105603487A (en) | 2016-05-25 |
| CN105603487B true CN105603487B (en) | 2017-08-25 |
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| CN201710628536.1A Expired - Fee Related CN107222998B (en) | 2016-01-05 | 2016-01-05 | Preparation method of anodized metal shell, metal shell and electronic equipment |
| CN201610010302.6A Expired - Fee Related CN105603487B (en) | 2016-01-05 | 2016-01-05 | Preparation method, metal shell and the electronic equipment of anodized metallization housing |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105921951B (en) * | 2016-05-31 | 2018-06-26 | 珠海市魅族科技有限公司 | A kind of manufacture and assembly method of terminal shell |
| CN106227001A (en) * | 2016-09-06 | 2016-12-14 | 广东欧珀移动通信有限公司 | Jig and workpiece manufacturing method |
| CN107790967A (en) * | 2017-09-27 | 2018-03-13 | 彭志光 | The manufacture craft of aluminium alloy certificate cutting ferrule |
| CN108381127A (en) * | 2018-04-13 | 2018-08-10 | 深圳天珑无线科技有限公司 | The production method of electronic product shell, electronic product shell, electronic product |
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| TWM447804U (en) * | 2011-12-22 | 2013-03-01 | Qi-Rui Huang | Metal sheet shaping system |
| US20130224406A1 (en) * | 2012-02-24 | 2013-08-29 | Htc Corporation | Casing of handheld electronic device and method of manufacturing the same |
| CN103422135B (en) * | 2012-05-15 | 2016-05-11 | 可成科技股份有限公司 | Method for manufacturing metal workpiece with anti-slip leather texture surface |
| CN204182748U (en) * | 2014-09-24 | 2015-03-04 | 新冀机械有限公司 | sheet metal forming machine |
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2016
- 2016-01-05 CN CN201710628536.1A patent/CN107222998B/en not_active Expired - Fee Related
- 2016-01-05 CN CN201610010302.6A patent/CN105603487B/en not_active Expired - Fee Related
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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 technology of mobile phone case with metallic luster |
| CN104805485A (en) * | 2015-04-07 | 2015-07-29 | 广东欧珀移动通信有限公司 | Die-cast aluminum alloy surface treatment method |
| CN104812192A (en) * | 2015-04-08 | 2015-07-29 | 广东欧珀移动通信有限公司 | Method for optimizing appearance of injection molding metal housing and injection molding metal housing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107222998B (en) | 2020-03-27 |
| CN105603487A (en) | 2016-05-25 |
| CN107222998A (en) | 2017-09-29 |
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