CN101555612A - Method for processing surface of shell - Google Patents
Method for processing surface of shell Download PDFInfo
- Publication number
- CN101555612A CN101555612A CNA2008103010654A CN200810301065A CN101555612A CN 101555612 A CN101555612 A CN 101555612A CN A2008103010654 A CNA2008103010654 A CN A2008103010654A CN 200810301065 A CN200810301065 A CN 200810301065A CN 101555612 A CN101555612 A CN 101555612A
- Authority
- CN
- China
- Prior art keywords
- housing base
- metal layer
- shell
- nickel metal
- treatment method
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
A method for processing surface of shell comprises the steps as follows: providing a shell substrate; galvanizing a first non-nickel metal layer on the shell substrate; performing blast treatment to the first non-nickel metal layer to form matte effect; and galvanizing a second non-nickel metal layer on the first non-nickel metal layer.
Description
Technical field
The invention relates to a kind of surface treatment method of shell, particularly about a kind of surface treatment method that makes this case surface have matt effect.
Background technology
Existing plastic casing to portable electron devices such as mobile phone, digital camera, personal digital assistant, notebook computers can carry out electroplating processes so that case surface has metal effect usually.Along with people are more and more higher to the requirement of the visual appearance of decorative appearance part, common
The metal-like surface of high brightness, high rigidity no longer is the main direction that people pursue, increasing people begin to favor the metal appearance in the tool matt effect, as by the made electrodeposition of metals of mist nickel electroplating technology, the surface of this electrolytic coating is like the cloudy surface as the damask, it is the outward appearance elegance on the one hand, the metalluster of its surface generation is soft on the other hand, can lower reflection of light, indefatigability behind people's eye fixation.Yet by containing nickel in the prepared electrolytic coating of mist nickel electroplating technology, nickel is the unfriendly element of a kind of human body, and duration of service, long meeting caused the allergic of people, to the health generation harm of human body.Therefore, this nickeliferous product is difficult to the tool market competitiveness.
Summary of the invention
Given this, being necessary to provide a kind of makes shell have matt effect and to human body close friend's surface treatment method.
A kind of surface treatment method of shell, it comprises the steps:
One housing base is provided;
On this housing base, electroplate the first non-nickel metal layer;
This first non-nickel metal layer is carried out sandblasting makes it form matt effect;
On this first non-nickel metal layer, electroplate the second non-nickel metal layer.
Compared to prior art, the surface treatment method of shell of the present invention both can make case surface form the effect or the atomized surface effect of inferior light, can make again not contain harmful nickel metal in the product, and its product has more the market competitiveness.
Embodiment
The surface treatment method of better embodiment shell of the present invention comprises the steps:
One housing base is provided.This matrix can be plastic casing, and the optional acrylonitrile-butadiene-styrene (ABS) of doing for oneself of these plastics (Acrylonitrile-Butadiene-Styrene, ABS) or acrylonitrile-butadiene-styrene (ABS) and polycarbonate (Polycarbonate, mixture PC).This matrix also can be metal shell, as stainless steel, titanium alloy, magnesium alloy or Al-alloy casing etc.
When described housing base is plastic casing, this housing base is carried out surface metalation handle, make the surface of this housing base be converted into conductive surface, so that follow-up plating.
Surface metalation treatment process to housing base can be physical method, as utilizes Vacuum Coating method at matrix surface plating one metal level, and this metal level is copper or other non-nickel metal layer.
The method that described surface metalation is handled also can be chemical process, deposits a metal level as the solution that uses cupric or other non-nickel metal on housing base.When using chemical method that metalized is carried out on the housing base surface, at first etch processes is carried out on the surface of housing base, make its surface roughening.This etch processes can be corroded matrix surface by the etching reagent that use contains chromic acid, chromium sulphur nitration mixture (chromschwefelsaure) or potassium permanganate and realized, also can adopt plasma process or realizes with oxidation etch method.
Housing base after the etching is used flushing with clean water again, and further this housing base is carried out activation treatment in pickling or alkali cleaning and behind the remaining etching solution.During activation treatment, housing base be impregnated in one contain certain hour in the activator solution of hydrochloric acid, polyamic acid and precious metal ion (as palladium ion).Deposit the precious metal (as palladium) of spot distribution after the activation treatment on the surface of this housing base.
Again housing base is placed copper bearing solution to flood after the activation treatment, copper metal crane span structure is deposited between the metallic palladium of spot distribution,, form a conductive layer so that the surface of housing base is all covered by the copper metal.
Plastic casing matrix after described metal shell matrix or the surface metalation processing is electroplated one first non-nickel metal layer, and this first non-nickel metal layer can be the copper layer.Used electroplate liquid can be copper sulfate or copper pyrophosphate solution during plating, and anode is the copper metal.The thickness of this first non-nickel metal layer can be between 10～50 μ m, and it can be controlled by regulating galvanized size of current and electroplating time.
The described housing base that is formed with behind the first non-nickel metal layer is carried out the Passivation Treatment first time.For the copper metal oxidation in air that prevents the first non-nickel metal layer forms the oxide compound of black and has influence on follow-up processing procedure; the copper metal needs of this first non-nickel metal layer is carried out the passivation protection processing first time, make copper metallic face form an inactive oxide film.Used passivating dip can be chromic acid or chromic salt during passivation.
Housing base after the described passivation is carried out sandblasting.Sandblasting is carried out in a sandblast machine, and this sandblast machine comprises a spray gun.The mixture of quartz sand and water is housed in the described sandblast machine, the mixture of this quartz sand and water is pressed in the spray gun of sandblast machine in the working process by high pressure gas, on directive housing base after the spray gun ejection, make the even fine concave point of the first non-nickel metal layer surface generation on this housing base, thereby produce frosted finish effect and matt effect.After the described sandblasting, it is destroyed to be hit the passivation protection rete at the position that forms concave point by quartzy sand grains on the first non-nickel metal layer surface.
After described sandblasting is finished, this housing base is carried out the Passivation Treatment second time again.After the sandblasting, it is destroyed to be hit the passivation protection rete at the position that forms concave point by quartzy sand grains on the first non-nickel metal layer surface of housing base, and the electro-coppering metal exposed that makes the housing base surface is in air.For the oxide compound that prevents copper metal oxidation in air forming black and have influence on follow-up processing procedure, this copper metal is carried out passivation protection processing second time, make to be exposed to airborne copper metallic face and to form an inactive oxide film.Used passivating dip can be chromic acid or chromic salt during passivation.
Housing base after the described process Passivation Treatment second time is carried out activation treatment, to remove the oxide film that is formed on the housing base.The method of this activation treatment is for to place basic solution with described housing base, as carrying out electrolysis in the sodium hydroxide solution.
Housing base after the described activation treatment is removed quartz sand handle, to remove the quartz sand particle that residues in the housing base surface.The described quartz sand treatment process of removing can be and places hydrofluoric acid to flood certain hour this housing base, with the quartz sand particle dissolving and remove.
Described housing base removes washes cleaning after quartz sand is finished dealing with.
On the housing base after the cleaning, electroplate the second non-nickel metal layer.This second non-nickel metal layer is formed on the first non-nickel metal layer with frosted and matt effect.This second non-nickel metal layer can be metallic palladium layer or gunmetal metal level, and its thickness can be between 2～8 μ m.On this second non-nickel metal layer surface, but re-plating one surface decoration layer, and as the chromium metal level, product is corrosion-resistant to satisfy, the requirement of wear resisting property and outward appearance.This chromium metal layer thickness can be between 0.1～2 μ m.Because the first non-nickel metal layer has the frosted matt effect, also has frosted and matt effect after this second non-nickel metal layer and surface decoration layer are formed at the first non-nickel metal layer.
Compared to prior art, the surface treatment method of better embodiment shell of the present invention both can make case surface form the atomized surface effect of frosted and inferior light, can make again not contain harmful nickel metal in the product, and its product has more the market competitiveness.
Claims (10)
1. the surface treatment method of a shell, it comprises the steps:
One housing base is provided;
On this housing base, electroplate the first non-nickel metal layer;
This first non-nickel metal layer is carried out sandblasting makes it form matt effect;
On this first non-nickel metal layer, electroplate the second non-nickel metal layer.
2. the surface treatment method of shell as claimed in claim 1, it is characterized in that: described housing base is a plastic casing.
3. the surface treatment method of shell as claimed in claim 2 is characterized in that: use Vacuum Coating method at housing base coating surface one bronze medal or non-nickel metal layer before described housing base is electroplated.
4. the surface treatment method of shell as claimed in claim 2 is characterized in that: use chemical process at housing base surface deposition one metal level before described housing base is electroplated, this method may further comprise the steps: with this housing base surface coarsening; This housing base surface of activation treatment; Housing base surface chemistry deposited copper after activation or non-nickel metal layer.
5. the surface treatment method of shell as claimed in claim 1, it is characterized in that: the described first non-nickel metal layer is a copper metal layer.
6. the surface treatment method of shell as claimed in claim 1, it is characterized in that: the described first non-nickel metal layer carries out Passivation Treatment before sandblasting.
7. the surface treatment method of shell as claimed in claim 1 is characterized in that: before electroplating the second non-nickel metal layer after the housing base sandblast of institute of institute this housing base is carried out passivation respectively, activates the processing that reaches except that residual quartz sand.
8. the surface treatment method of shell as claimed in claim 1, it is characterized in that: the described second non-nickel metal layer is metallic palladium layer or gunmetal metal level.
9. the surface treatment method of shell as claimed in claim 8 is characterized in that: also be electroplate with a chromium metallic surface ornament layer on the described second non-nickel metal layer.
10. the surface treatment method of shell as claimed in claim 1, it is characterized in that: described housing base is a metal shell, this metallic substance is any in stainless steel, titanium alloy, magnesium alloy or the aluminium alloy.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103010654A CN101555612A (en) | 2008-04-11 | 2008-04-11 | Method for processing surface of shell |
| US12/416,248 US20090255824A1 (en) | 2008-04-11 | 2009-04-01 | Method for surface treating a substrate |
| EP09157443A EP2108717A1 (en) | 2008-04-11 | 2009-04-06 | Method of substrate surface treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103010654A CN101555612A (en) | 2008-04-11 | 2008-04-11 | Method for processing surface of shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101555612A true CN101555612A (en) | 2009-10-14 |
Family
ID=40933601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103010654A Pending CN101555612A (en) | 2008-04-11 | 2008-04-11 | Method for processing surface of shell |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20090255824A1 (en) |
| EP (1) | EP2108717A1 (en) |
| CN (1) | CN101555612A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877427A (en) * | 2010-07-02 | 2010-11-03 | 深圳市大富科技股份有限公司 | Communication device, cavity filter, resonating tube and manufacturing method thereof |
| CN101882703A (en) * | 2010-07-02 | 2010-11-10 | 深圳市大富科技股份有限公司 | Communication equipment, cavity filter, resonating tube and manufacturing method thereof |
| CN102202475A (en) * | 2010-03-25 | 2011-09-28 | 深圳富泰宏精密工业有限公司 | Electronic device shell and manufacturing method thereof |
| CN102223771A (en) * | 2010-04-14 | 2011-10-19 | 深圳富泰宏精密工业有限公司 | Electronic device shell and manufacturing method of same |
| CN102544884A (en) * | 2011-12-23 | 2012-07-04 | 富士康(昆山)电脑接插件有限公司 | Electric connector, electric connector casing and surface treatment method of electric connector casing |
| CN103361686A (en) * | 2013-07-24 | 2013-10-23 | 北京亿海腾模型工业有限公司 | Method for processing chromeplate effect on outer surface of cellphone model product |
| CN103594904A (en) * | 2012-08-16 | 2014-02-19 | 宏达国际电子股份有限公司 | Method of forming colored appearance and conductive casing |
| CN104618538A (en) * | 2015-02-06 | 2015-05-13 | 福建省石狮市通达电器有限公司 | Post processing technology of mobile phone rear cover |
| USD743894S1 (en) | 2012-08-09 | 2015-11-24 | Htc Corporation | Connector |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105637120B (en) * | 2013-10-31 | 2018-04-06 | 惠普发展公司，有限责任合伙企业 | The method for handling metal surface |
| FR3019187B1 (en) * | 2014-03-27 | 2016-04-15 | Univ Toulouse 3 Paul Sabatier | PROCESS FOR PREPARING AN ELECTRICALLY CONDUCTIVE COMPOSITE PIECE IN SURFACE AND APPLICATIONS |
| US20170087691A1 (en) * | 2015-09-30 | 2017-03-30 | Apple Inc. | Methods for color and texture control of metallic glasses by the combination of blasting and oxidization |
| US20220341052A1 (en) * | 2019-10-31 | 2022-10-27 | Hewlett-Packard Development Company, L.P. | Electronic device housings with electroless plating layers |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3485643A (en) * | 1966-05-06 | 1969-12-23 | Photocircuits Corp | Electroless copper plating |
| DE19723980B4 (en) * | 1997-06-06 | 2005-01-27 | Fa. Alfred R. Franz | Continuous, computer-controlled process for the production of black-chromed, surface-defect-free, complete injection-molded parts made of magnesium alloys with electrically conductive and optimally adhesive surface areas and application of this method |
| US5879532A (en) * | 1997-07-09 | 1999-03-09 | Masco Corporation Of Indiana | Process for applying protective and decorative coating on an article |
| ATE497031T1 (en) * | 2003-01-27 | 2011-02-15 | Hansgrohe Ag | COATING PROCESS |
| DE10303650A1 (en) * | 2003-01-27 | 2004-07-29 | Hansgrohe Ag | Coating of objects such as plastic sprays comprises application of a layer of copper, nickel or a copper-nickel alloy, mechanical surface treatment of at least the outer applied layer and application of a palladium-nickel layer |
| DE10303648A1 (en) * | 2003-01-27 | 2004-07-29 | Hansgrohe Ag | Surface coating of the metal surfaces of sanitary fittings, for protection against corrosion, uses an initial layer of copper/nickel which is brushed/sand blasted, for a further layer of nickel-tungsten or palladium-nickel |
| JP4330363B2 (en) * | 2003-03-28 | 2009-09-16 | ジャパンスーパークォーツ株式会社 | Quartz glass crucible |
| US20060086620A1 (en) * | 2004-10-21 | 2006-04-27 | Chase Lee A | Textured decorative plating on plastic components |
| US7946022B2 (en) * | 2005-07-05 | 2011-05-24 | The Furukawa Electric Co., Ltd. | Copper alloy for electronic machinery and tools and method of producing the same |
-
2008
- 2008-04-11 CN CNA2008103010654A patent/CN101555612A/en active Pending
-
2009
- 2009-04-01 US US12/416,248 patent/US20090255824A1/en not_active Abandoned
- 2009-04-06 EP EP09157443A patent/EP2108717A1/en not_active Withdrawn
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102202475A (en) * | 2010-03-25 | 2011-09-28 | 深圳富泰宏精密工业有限公司 | Electronic device shell and manufacturing method thereof |
| CN102223771B (en) * | 2010-04-14 | 2015-04-15 | 深圳富泰宏精密工业有限公司 | Electronic device shell and manufacturing method of same |
| CN102223771A (en) * | 2010-04-14 | 2011-10-19 | 深圳富泰宏精密工业有限公司 | Electronic device shell and manufacturing method of same |
| CN101882703A (en) * | 2010-07-02 | 2010-11-10 | 深圳市大富科技股份有限公司 | Communication equipment, cavity filter, resonating tube and manufacturing method thereof |
| WO2012000450A1 (en) * | 2010-07-02 | 2012-01-05 | 深圳市大富科技股份有限公司 | Communication device, cavity filter, resonance tube and manufacturing method thereof |
| WO2012000447A1 (en) * | 2010-07-02 | 2012-01-05 | 深圳市大富科技股份有限公司 | Communication device, cavity filter, resonance tube and manufacturing method thereof |
| CN101877427A (en) * | 2010-07-02 | 2010-11-03 | 深圳市大富科技股份有限公司 | Communication device, cavity filter, resonating tube and manufacturing method thereof |
| CN102544884A (en) * | 2011-12-23 | 2012-07-04 | 富士康(昆山)电脑接插件有限公司 | Electric connector, electric connector casing and surface treatment method of electric connector casing |
| CN102544884B (en) * | 2011-12-23 | 2015-04-01 | 富士康(昆山)电脑接插件有限公司 | Electric connector, electric connector casing and surface treatment method of electric connector casing |
| USD743894S1 (en) | 2012-08-09 | 2015-11-24 | Htc Corporation | Connector |
| CN103594904A (en) * | 2012-08-16 | 2014-02-19 | 宏达国际电子股份有限公司 | Method of forming colored appearance and conductive casing |
| CN103361686A (en) * | 2013-07-24 | 2013-10-23 | 北京亿海腾模型工业有限公司 | Method for processing chromeplate effect on outer surface of cellphone model product |
| CN103361686B (en) * | 2013-07-24 | 2015-12-09 | 北京亿海腾模型工业有限公司 | A kind of working method of chromium-plating effect of outside surface of mobile model product |
| CN104618538A (en) * | 2015-02-06 | 2015-05-13 | 福建省石狮市通达电器有限公司 | Post processing technology of mobile phone rear cover |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2108717A1 (en) | 2009-10-14 |
| US20090255824A1 (en) | 2009-10-15 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091014 |