CN105430980A - Preparation method for metal shell and metal shell - Google Patents
Preparation method for metal shell and metal shell Download PDFInfo
- Publication number
- CN105430980A CN105430980A CN201510794353.8A CN201510794353A CN105430980A CN 105430980 A CN105430980 A CN 105430980A CN 201510794353 A CN201510794353 A CN 201510794353A CN 105430980 A CN105430980 A CN 105430980A
- Authority
- CN
- China
- Prior art keywords
- appearance
- shape diaphragm
- die cast
- metal shell
- carried out
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 63
- 239000002184 metal Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 51
- 230000003647 oxidation Effects 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 12
- 230000001680 brushing effect Effects 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 2
- 238000003618 dip coating Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 238000001771 vacuum deposition Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004512 die casting Methods 0.000 abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a preparation method for a metal shell and the metal shell. The method comprises the steps: pasting and covering the appearance surface of a die-cast shell with a metal section membrane; and performing anodic oxidation treatment on the metal section membrane. According to the method and the metal shell, after the shell is formed in a die-casting manner, the appearance surface of the die-cast shell is pasted and covered with the metal section membrane, and the metal section membrane is subjected to anodic oxidation treatment, so that the problem that a metal shell subjected to anodic oxidation treatment is blackened in the prior art is solved and the appearance expression of the metal shell is improved.
Description
Technical field
The embodiment of the present invention relates to electronic device technology, particularly relates to a kind of metal shell preparation method and metal shell.
Background technology
In the electronic product machining industry that precision prescribed is high, especially mainly all use computer digital control machine tool (Computernumericalcontrol, CNC) to process or adopt punching press and CNC jointly to process aluminium alloy extrusions to aluminium alloy extrusions to the process technology of aluminium alloy to the processing of metal shell; But above-mentioned two kinds of processing modes seem unable to do what one wishes when the housing of processed complex structure, CNC sharp increase process time causes cost increase, extend process time causes the delivery cycle elongated simultaneously, operating efficiency can be caused low, therefore in prior art, the normal die casting mode that adopts replaces CNC, to reduce costs and to reduce product processing time.
Die-casting technique is by aluminium alloy at high temperature melting, is then pressed in resistant to elevated temperatures mould by high pressure mode by molten aluminium alloy, disposablely can make the housing of labyrinth form in this way, and efficiency is high.But, because the compactness of material behavior and die casting causes die casting product surface treatment effect out poor, after anodic oxidation, the problem that surface blackening is partially dark can be caused.
Summary of the invention
The invention provides a kind of metal shell preparation method and metal shell, to realize the good appearance of metal shell, promote appearance power.
First aspect, embodiments provides a kind of metal shell preparation method, comprising: in the appearance of die cast, paste shape diaphragm; Anodized is carried out to described shape diaphragm.
Second aspect, the embodiment of the present invention additionally provides a kind of metal shell, comprising:
Die cast;
Be covered in the shape diaphragm in the appearance of described die cast;
And, be positioned at the anode oxidation membrane on described shape diaphragm.
The present invention forms housing by the mode of die casting and on the appearance face of die cast, pastes shape diaphragm and carry out anodized to described shape diaphragm simultaneously, the problem that after solving prior art Anodic Oxidation, metal shell turns black, improves the appearance power of metal shell.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of metal shell preparation method in the embodiment of the present invention one;
Fig. 2 is the flow chart of a kind of metal shell preparation method in the embodiment of the present invention two;
Fig. 3 is the flow chart of a kind of metal shell preparation method in the embodiment of the present invention three.
Fig. 4 is the schematic cross-section of a kind of metal shell in the embodiment of the present invention four;
Fig. 5 is the schematic cross-section of a kind of metal shell in the embodiment of the present invention four.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not entire infrastructure.
Embodiment one
The flow chart of a kind of metal shell preparation method that Fig. 1 provides for the embodiment of the present invention one, the present embodiment is applicable to the situation making metal shell, and the method specifically comprises the steps:
Step 110, in the appearance of die cast, paste shape diaphragm.
The present embodiment still adopts extrusion process to prepare die cast for reducing manufacturing cost, after preparation die cast, the appearance of described die cast pastes shape diaphragm.Described shape diaphragm can be shaping according to the appearance size cutting of described die cast in advance, mates after ensureing to paste with the appearance of described die cast.
Step 120, anodized is carried out to described shape diaphragm.
Anodized is carried out to the outer surface of shape diaphragm, improves corrosion resistance, strengthen resistance to wear and hardness, protection metal surface, and make it have good appearance, promote the appearance power of metal shell.
The present invention forms die cast by the mode of die casting, then in the appearance of die cast, shape diaphragm is pasted, and anodized is carried out to described shape diaphragm, both the low cost of extrusion process can have been ensured, can avoid again, in prior art, anodic oxidation is directly carried out to die cast and easily occur the problem shaded of turning black, metal shell preparation method provided by the invention can make metal shell appearance have good appearance, promotes the appearance power of metal shell.
On the basis of technique scheme, also comprise before step 120: blasting treatment is carried out to described shape diaphragm.
Sandblasting can make the surface of shape diaphragm obtain certain cleannes and different roughness, after sandblasting anodized is carried out to shape diaphragm after the anode oxidation membrane that formed be not easy to come off, the appearance president Kubo of metal shell holds good appearance.
Preferably, the thickness of shape diaphragm is 0.1-0.5mm.Shape diaphragm not only can form good metal shell outward appearance at above-mentioned thickness range but also can save the cost of shape diaphragm.
Preferably, the material of die cast is aluminium alloy.
When the material of die cast is aluminium alloy, during concrete die casting can be die casting dedicated aluminium alloy through 700 DEG C of heating and meltings, by pressurization inject in vacuum mold, pressurize aftershaping.
Preferably, after the vacuum mold after pressurize is shaping is opened, the die cast of cooling forming is taken out cooling 10-20S by manipulator.
Further, the die cast after cooling forming is connected with the mouth of a river and profile portion criticizes peak, by slightly punching and fine blanking die remove the mouth of a river and batch peak.
Optionally, the material of shape diaphragm is aluminium or stainless steel.
Embodiment two
The flow chart of a kind of metal shell preparation method that Fig. 2 provides for the embodiment of the present invention two, the present embodiment is optimized further step 110 based on embodiment one, preferably step 110 is optimized for further: in the appearance of die cast and/or in shape diaphragm side, carry out zinc-plated process successively; The appearance of die cast and shape diaphragm are carried out welding press.See Fig. 2, the method specifically comprises the steps:
Step 210, in the appearance of die cast and/or in shape diaphragm side, carry out zinc-plated process successively.
Concrete, only can carry out zinc-plated process to the appearance of die cast; Also only zinc-plated process can be carried out to shape diaphragm side; Also also zinc-plated process can be carried out to the appearance of die cast and to the side of shape diaphragm.
Preferably, before zinc-plated process, be also included in the appearance of die cast and/or carry out heavy zinc, Nickel Plating Treatment successively in shape diaphragm side, zinc-plated again after heavy zinc, Nickel Plating Treatment, the tin plated is not easy to come off.
Step 220, the appearance of die cast and shape diaphragm are carried out welding press.
Wherein, after the appearance of die cast and shape diaphragm can being fitted in advance, put into pressing mold, by HTHP mode, welding press is carried out in tin thawing, begin to take shape metal shell.Appearance and the shape diaphragm of the die cast in the metal shell of such formation have stronger adhesion.
Step 230, anodized is carried out to described shape diaphragm.
Anodized is carried out to the shape diaphragm of the metal shell begun to take shape in step 220, makes metal shell possess good appearance, promote the appearance power of metal shell.
The technical scheme of the present embodiment by carrying out zinc-plated process successively in the appearance of die cast and/or in shape diaphragm side; Then the appearance of die cast and shape diaphragm are carried out welding press; Finally carry out anodized at shape diaphragm, form metal shell, the appearance of the die cast in the metal shell formed like this and shape diaphragm have very strong adhesion and promote Consumer's Experience.
On the basis of above-described embodiment, in the appearance of die cast and/or after zinc-plated process is carried out successively in shape diaphragm side, also comprise:
The process of spraying scaling powder is carried out successively in the appearance of die cast and/or in shape diaphragm side.
Wherein, only can be to the appearance of die cast being carried out the process of spraying scaling powder; Also can be only the process of spraying scaling powder is carried out to shape diaphragm side; Also can be the appearance to die cast carries out the process of spraying scaling powder and the process of spraying scaling powder is also carried out to shape diaphragm side.
Carry out successively spraying the intensity that scaling powder process can strengthen welding in the appearance of die cast and/or in shape diaphragm side, make the appearance of the die cast of welding and shape diaphragm have stronger adhesion, scaling powder preferably adopts leadless environment-friendly type.
On the basis of such scheme, zinc-plated process comprises: any one in water plating, Vacuum Deposition, brushing, showering and roller coat.
On the basis of such scheme, spraying scaling powder process comprises: any one in dip-coating, spray, roller coat and brushing.
Preferably, before zinc-plated process is carried out to shape diaphragm, oil removing can be carried out in a winding manner to shape diaphragm, alkali cleaning, dirty, the oxide-film of shape membrane surface are removed to obtain clean surface by the operations such as desmut, then according to the size calculated, continuous print coiled material can be cut into sheet to shape diaphragm, then zinc-plated process be carried out to shape diaphragm side.
Embodiment three
The flow chart of a kind of metal shell preparation method that Fig. 3 provides for the embodiment of the present invention three, the present embodiment is optimized further step 110 based on embodiment one, preferably step 110 is optimized for further: between the appearance and shape diaphragm of die cast, place metallic tin sheet, and carry out welding press.See Fig. 3, described method specifically comprises the steps:
Step 310, between the appearance and shape diaphragm of die cast, place metallic tin sheet, and carry out welding press.
Wherein, metallic tin can be rolled into metallic tin sheet, then metallic tin sheet be placed on when being used for welding between the appearance of die cast and shape diaphragm and welding press is carried out in the thawing of metallic tin sheet, begin to take shape metal shell.
Step 320, anodized is carried out to described shape diaphragm.
Anodized is carried out to the shape diaphragm of the metal shell begun to take shape, makes metal shell possess good appearance, promote the appearance power of metal shell.
The technical scheme of the present embodiment by placing metallic tin sheet between the appearance and shape diaphragm of die cast, and carries out welding press.Then anodized is carried out to shape diaphragm, form metal shell, die cast in the metal shell of such formation and shape diaphragm not only have very strong adhesion, save in the appearance to die cast and/or in shape diaphragm side simultaneously and carry out zinc-plated process successively, improve production efficiency.
On the basis of above-described embodiment, between the appearance and shape diaphragm of die cast, place metallic tin sheet, and before carrying out welding press, also comprise:
The process of spraying scaling powder is carried out to described metallic tin sheet both sides.
Wherein, carry out spraying the intensity that scaling powder process can strengthen welding to described metallic tin both sides, make the appearance of the die cast of welding and shape diaphragm have stronger adhesion, scaling powder preferably adopts leadless environment-friendly type.
Embodiment four
The schematic cross-section of a kind of metal shell that Fig. 4 provides for the embodiment of the present invention four, the either method that the metal shell of the present embodiment can adopt the present embodiment to provide is made, and see Fig. 4, described metal shell comprises: die cast 401; Be covered in the shape diaphragm 402 in the appearance of described die cast; And, be positioned at the anode oxidation membrane 403 on described shape diaphragm.
The technical scheme of the present embodiment provides a kind of metal shell, and this metal shell comprises: die cast; Be covered in the shape diaphragm in the appearance of described die cast; And be positioned at the anode oxidation membrane on described shape diaphragm, the problem that after solving prior art Anodic Oxidation, metal shell turns black, improves the appearance power of metal shell.
On the basis of above-described embodiment, described die cast and described shape diaphragm paste preferably by the mode of welding press and link together, the metal shell of this kind of structure as shown in Figure 5, comprise: die cast 501, the shape diaphragm 503 be covered in the appearance of described die cast, metal tin layers 502 between the appearance and described shape diaphragm of described die cast, and, be positioned at the anode oxidation membrane 504 on described shape diaphragm.
The said goods can perform the method that any embodiment of the present invention provides, and possesses the corresponding functional module of manner of execution and beneficial effect.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (10)
1. a metal shell preparation method, is characterized in that, comprising:
The appearance of die cast pastes shape diaphragm;
Anodized is carried out to described shape diaphragm.
2. method according to claim 1, is characterized in that, describedly in the appearance of die cast, pastes shape diaphragm, comprising:
Zinc-plated process is carried out successively in the appearance of die cast and/or in shape diaphragm side;
The appearance of die cast and shape diaphragm are carried out welding press.
3. method according to claim 2, is characterized in that, in the appearance of die cast and/or after zinc-plated process is carried out successively in shape diaphragm side, also comprises:
The process of spraying scaling powder is carried out successively in the appearance of die cast and/or in shape diaphragm side.
4. method according to claim 1, is characterized in that, describedly in the appearance of die cast, pastes shape diaphragm, comprising:
Between the appearance and shape diaphragm of die cast, place metallic tin sheet, and carry out welding press.
5. method according to claim 4, is characterized in that, places metallic tin sheet, and before carrying out welding press, also comprise between the appearance and shape diaphragm of die cast:
The process of spraying scaling powder is carried out to described metallic tin sheet both sides.
6. method according to claim 1, is characterized in that, before carrying out anodized, also comprises described shape diaphragm:
Blasting treatment is carried out to described shape diaphragm.
7. method according to claim 2, is characterized in that, described zinc-plated process comprises: any one in water plating, Vacuum Deposition, brushing, showering and roller coat.
8. the method according to claim 3 or 5, is characterized in that, the process of described spraying scaling powder comprises: any one in dip-coating, spray, roller coat and brushing.
9., according to described method arbitrary in claim 1-7, it is characterized in that, the thickness of described shape diaphragm is 0.1mm-0.5mm.
10. a metal shell, is characterized in that, comprising:
Die cast;
Be covered in the shape diaphragm in the appearance of described die cast;
And, be positioned at the anode oxidation membrane on described shape diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794353.8A CN105430980B (en) | 2015-11-18 | 2015-11-18 | A kind of metal shell preparation method and metal shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510794353.8A CN105430980B (en) | 2015-11-18 | 2015-11-18 | A kind of metal shell preparation method and metal shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105430980A true CN105430980A (en) | 2016-03-23 |
| CN105430980B CN105430980B (en) | 2018-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510794353.8A Expired - Fee Related CN105430980B (en) | 2015-11-18 | 2015-11-18 | A kind of metal shell preparation method and metal shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105430980B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106078101A (en) * | 2016-06-29 | 2016-11-09 | 中国电子科技集团公司第八研究所 | A kind of production and processing technology of optical module housing |
| CN112020248A (en) * | 2019-05-28 | 2020-12-01 | 苹果公司 | Anodized parts having a matte black appearance |
| US11614778B2 (en) | 2019-09-26 | 2023-03-28 | Apple Inc. | Anodized part having low reflectance of visible and near-infrared light |
| US11751349B2 (en) | 2019-05-28 | 2023-09-05 | Apple Inc. | Anodized part having a matte black appearance |
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| CN1119708A (en) * | 1995-06-16 | 1996-04-03 | 孙守连 | Method for making circle-arc plastic axle bush |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106078101A (en) * | 2016-06-29 | 2016-11-09 | 中国电子科技集团公司第八研究所 | A kind of production and processing technology of optical module housing |
| CN112020248A (en) * | 2019-05-28 | 2020-12-01 | 苹果公司 | Anodized parts having a matte black appearance |
| CN112020248B (en) * | 2019-05-28 | 2021-12-10 | 苹果公司 | Anodized parts having a matte black appearance |
| US11751349B2 (en) | 2019-05-28 | 2023-09-05 | Apple Inc. | Anodized part having a matte black appearance |
| US11614778B2 (en) | 2019-09-26 | 2023-03-28 | Apple Inc. | Anodized part having low reflectance of visible and near-infrared light |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105430980B (en) | 2018-09-14 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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