CN104630792A - Processing technology for shell exterior part with metallic luster - Google Patents
Processing technology for shell exterior part with metallic luster Download PDFInfo
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- CN104630792A CN104630792A CN201510083541.XA CN201510083541A CN104630792A CN 104630792 A CN104630792 A CN 104630792A CN 201510083541 A CN201510083541 A CN 201510083541A CN 104630792 A CN104630792 A CN 104630792A
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- housing appearance
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- metalluster
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Abstract
The invention provides a processing technology for a shell exterior part with metallic luster. The processing technology for a shell exterior part with metallic luster orderly comprises the following steps: (a) burnishing and polishing: polishing the surface of the shell exterior part; (b) abrasive blasting: performing blast sanding treatment on the polished surface and forming the granular sensation for the polished surface; (c) degreasing: removing the grease on the polished surface of the shell exterior part; (d) washing via the water: washing the residual liquid on the surface of the shell exterior part; (e) electrolytic polishing: further polishing the surface of the shell exterior part; (f) washing via the water: washing the shell exterior part after the electrolytic polishing treatment; (g) removing silicon: reducing the silicon content for polished surface of the shell exterior part; (h) neutralizing: neutralizing the acid cleaning solution on the polished surface of the shell exterior part after the step (g), and cleaning the surface of the product; (i) chemically polishing: chemically polishing via sulfuric acid, making the polished surface of the shell exterior part flat and light; and (j) performing electrophoresis or anodic oxidation combined coloring process: forming metallic luster for the polished surface of the shell exterior part.
Description
Technical field
The invention belongs to housing appearance component complete processing field, particularly relate to a kind of housing appearance component complete processing with metalluster.
Background technology
Housing appearance component adopts metallic substance to coordinate the treatment process such as anodic oxidation again, very exquisite metal appearance effect can be made, the intermetallic composite coating usually adopted now is that aluminium alloy CNC processes, but all adopt CNC processing, cause CNC long processing time, complex procedures, and then cause high cost, in order to solve long problem CNC process period, industry adopts compression molding process, but, due to present die cast the cell phone type material commonly used be ADC3-ADC12 etc., usual Si, Mg, Fe content is all very high, usually gray appearance surface is presented after die casting, the interval compounds such as AL-Mg-Si-Fe can be formed when doing anodic oxidation, oxide film can be made to turn black, the defects such as black class.
Summary of the invention
The object of the present invention is to provide a kind of housing appearance piece surface treatment process with metalluster, be intended to solve in prior art the die casting aluminium that the housing appearance component that exists formed by compression molding process and easily produce the defects such as oxide film blackout, blackspot when sequent surface anodic oxidation.
The present invention is achieved in that a kind of housing appearance piece surface treatment process with metalluster, and it in turn includes the following steps:
A) sanding and polishing: polishing is carried out to housing appearance piece surface;
B) sandblasting: carry out sandblasting to glazed surface, makes glazed surface have granular sensation;
C) degreasing: remove the grease on housing appearance piece surface;
D) wash: the residual liquid on cleaning housing appearance piece surface:
E) electropolishing: to the further polishing of the glazed surface of housing appearance component;
F) wash: the housing appearance component after electropolishing is cleaned;
G) silica removal: reduce the silicone content on the glazed surface of housing appearance component;
H) neutralize: in and housing appearance component after step g glazed surface on subsidiary Acidwash solution, make product surface clean;
I) throwing is changed: adopt sulfation optical polishing, again make the glazed surface of housing appearance component smooth, bright;
J) electrophoresis or anodic oxidation are in conjunction with coloring process: on the glazed surface of housing appearance component, form metalluster;
Further, described surface treatment is also included in step b) and step c) between water-washing step, this water-washing step be cleaning sandblasting after housing appearance component.
Further, described surface treatment is also included in step g) and step h) between water-washing step, this water-washing step is remain in liquid in housing appearance component after cleaning silica removal.
Further, in described sanding and polishing a) step, polishing at twice, first time polishing adopts foaming wheel, and second time polishing adopts cloth wheel, and twice total polishing surplus is at 0.02mm-0.10mm.
Further, at described silica removal g) in step, adopt acidic solution to be cemented out by the element silicon on housing appearance piece surface, this solution is formed by number of chemical raw material and tensio-active agent chemical combination.
Further, at degreasing c) in step, adopt main component to be that the solution of tertiary sodium phosphate carries out degrease, soak time scope is 3-5min.
Further, at electropolishing e) in step, Liu Suan ﹑ phosphoric acid is the basal component of solution, and current density is lower than 1A/cm2, and voltage is 8-10V, and the electropolishing time is 10s to 10min.
Further, in and h) in step, the solution alkaline used, Acidwash solution subsidiary on the glazed surface of the housing appearance component after basic solution and step g neutralizes, and makes product surface clean, in and time range be 10s-5min.
Further, in change throwing i) step, the solution used comprises the phosphoric acid of 95% mass fraction and the sulfuric acid of 25% mass fraction, and changing the throwing time is 3s-10s.
Step a to step I be all in order to obtain " white, bright " and aluminium diecast alloy product, close to aluminium alloy color originally, next electrophoresis or anodic oxidation can be carried out in conjunction with electrolytic coloring, like this by bad to the surface blackening, blackspot etc. that greatly reduce housing appearance component, metal appearance effect can be made simultaneously.
Accompanying drawing explanation
Fig. 1 is the technical process with the housing appearance piece surface treatment process of metalluster that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, embodiments provide a kind of housing appearance piece surface treatment process with metalluster, it in turn includes the following steps:
A) sanding and polishing: polishing is carried out to housing appearance piece surface;
B) sandblasting: carry out sandblasting to glazed surface, makes glazed surface have granular sensation;
C) degreasing: remove the grease on housing appearance piece surface;
D) wash: the residual liquid on cleaning housing appearance piece surface:
E) electropolishing: to the further polishing of the glazed surface of housing appearance component;
F) wash: the housing appearance component after electropolishing is cleaned;
G) silica removal: reduce the silicone content on the glazed surface of housing appearance component;
H) neutralize: in and housing appearance component after step g glazed surface on subsidiary Acidwash solution, make product surface clean;
I) throwing is changed: adopt sulfation optical polishing, again make the glazed surface of housing appearance component smooth, bright;
J) electrophoresis or anodic oxidation are in conjunction with electrolytic coloring: on the glazed surface of housing appearance component, form metalluster.
Step a to step I be all in order to obtain " white, bright " and aluminium diecast alloy product, close to aluminium alloy color originally, next can carry out electrophoresis or anodic oxidation in conjunction with electrolytic coloring, like this by greatly reduce housing appearance component surface blackening, blackspot, turn blue, to be creamy white etc. bad.The silicone content of step g to the glazed surface of housing appearance component processes, its surface silicon content is reduced, make housing appearance component can not produce interval compounds such as forming AL-Mg-Si-Fe in follow-up electrophoresis or anodic oxidation are in conjunction with the step j of electrolytic coloring, defects such as avoiding making oxide film blackout, blackspot, turn blue, be creamy white.
In described sanding and polishing a) step, polishing at twice, first time polishing adopts foaming wheel, and second time polishing adopts cloth wheel, and twice total polishing surplus is at 0.02mm-0.10mm.The cloth wheel of second time polishing can be flax wheel, flannelette wheel, Buddhist nun's flannelette wheel, fine, soft fur bob etc., can reach polishing effect equally, reduce, housing appearance piece surface roughness to obtain light, flat surface.
At sandblasting b) in step, adopt automatic sand blasting machine to spray 220# zircon sand with blasting pressure 2.5 pounds; Understandably, other can reach other sand kind and blasting pressures of same granular sensation, do not add repeat at this.Sandblasting b) after step, the granular sensation that housing appearance piece surface produces is conducive to the embodiment of metalluster.
At degreasing c) in step, adopt main component to be that the solution of tertiary sodium phosphate carries out degrease, soak time scope is 3-5min;
At electropolishing e) in step, Liu Suan ﹑ phosphoric acid is the basal component of solution, and current density is lower than 1A/cm
2, voltage is 8-10V, and the electropolishing time is 10s to 10min, and this polishing time can adjust according to mechanical grinding degree;
At described silica removal g) in step, acidic solution is adopted to be cemented out by the element silicon on housing appearance piece surface, this solution is formed by number of chemical raw material and tensio-active agent chemical combination, silica removal cardinal principle adopts ion exchange method, pass through electrolytic reaction, by the Si element substitution on top layer out, to reach the object of the silicone content on the glazed surface reducing housing appearance component;
In and h) in step, the solution alkaline used, Acidwash solution subsidiary on the glazed surface of the housing appearance component after basic solution and step g neutralizes, and makes product surface clean, in and time range be 10s-5min.
In change throwing i) step, the solution used comprises the phosphoric acid of 95% mass fraction and the sulfuric acid of 25% mass fraction, and because silica removal can cause product surface unfairness, throw again by smooth for product surface polishing, bright by changing, changing the throwing time is 3s-10s.Understandably, in change throwing i) step, the solution used only is made up of the phosphoric acid of 95% mass fraction and the sulfuric acid of 25% mass fraction, also can reach the object of polishing.
In electrophoresis or anodic oxidation in conjunction with electrolytic coloring j) in step, during aluminum alloy casing anodic oxidation, workpiece is hung over anode, negative electrode pure aluminum plate or aluminium sheet, pass into direct current, aluminium atom loses electronics and is oxidized, oxide film is bilayer structure, internal layer be dense non-porous and the aluminium sesquioxide of few water, the porous layer that skin is made up of hole and hole wall, there is the oxide film of a lot of high porosity and absorption, adsorbable dyestuff, after closing, just forms color preferably ornamental rete.
Described surface treatment is also included in step sandblasting b) and step degreasing c) between water-washing step, this water-washing step be cleaning sandblasting after housing appearance component.
Described surface treatment is also included in step silica removal g) and step in and h) between water-washing step, this water-washing step is remain in liquid in housing appearance component after cleaning silica removal.
In the present invention, housing appearance component can be the appearance component of the products such as mobile phone shell.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. there is a housing appearance piece surface treatment process for metalluster, it is characterized in that: described in there is metalluster housing appearance piece surface treatment process in turn include the following steps:
A) sanding and polishing: polishing is carried out to housing appearance piece surface;
B) sandblasting: carry out sandblasting to glazed surface, makes glazed surface have granular sensation;
C) degreasing: remove the grease on housing appearance piece surface;
D) wash: the residual liquid on cleaning housing appearance piece surface:
E) electropolishing: to the further polishing of the glazed surface of housing appearance component;
F) wash: the housing appearance component after electropolishing is cleaned;
G) silica removal: reduce the silicone content on the glazed surface of housing appearance component;
H) neutralize: in and housing appearance component after step g glazed surface on subsidiary Acidwash solution, make product surface clean;
I) throwing is changed: adopt sulfation optical polishing, again make the glazed surface of housing appearance component smooth, bright;
J) electrophoresis or anodic oxidation are in conjunction with coloring process: on the glazed surface of housing appearance component, form metalluster.
2. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: described surface treatment is also included in step b) and step c) between water-washing step, this water-washing step be cleaning sandblasting after housing appearance component.
3. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: described surface treatment is also included in step g) and step h) between water-washing step, this water-washing step is remain in liquid in housing appearance component after cleaning silica removal.
4. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: in described sanding and polishing a) step, polishing at twice, first time polishing adopts foaming wheel, second time polishing adopts cloth wheel, and twice total polishing surplus is at 0.02mm-0.10mm.
5. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: at described silica removal g) in step, adopt acidic solution to be cemented out by the element silicon on housing appearance piece surface, this solution is formed by number of chemical raw material and tensio-active agent chemical combination.
6. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: at degreasing c) in step, adopt main component to be that the solution of tertiary sodium phosphate carries out degrease, soak time scope is 3-5min.
7. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: at electropolishing e) in step, Liu Suan ﹑ phosphoric acid is the basal component of solution, and current density is lower than 1A/cm
2, voltage is 8-10V, and the electropolishing time is 10s to 10min.
8. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: in and h) in step, the solution alkaline used, Acidwash solution subsidiary on the glazed surface of the housing appearance component after basic solution and step g neutralizes, make product surface clean, in and time range be 10s-5min.
9. there is the housing appearance piece surface treatment process of metalluster as claimed in claim 1, it is characterized in that: in change throwing i) step, the solution used comprises the phosphoric acid of 95% mass fraction and the sulfuric acid of 25% mass fraction, and changing the throwing time is 3s-10s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510083541.XA CN104630792B (en) | 2015-02-13 | 2015-02-13 | Housing appearance member processing technology with metallic luster |
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|---|---|---|---|
| CN201510083541.XA CN104630792B (en) | 2015-02-13 | 2015-02-13 | Housing appearance member processing technology with metallic luster |
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| CN104630792A true CN104630792A (en) | 2015-05-20 |
| CN104630792B CN104630792B (en) | 2017-11-14 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086901A (en) * | 2016-07-31 | 2016-11-09 | 安庆市芊芊纸业有限公司 | A kind of component of machine process of surface treatment |
| CN106119854A (en) * | 2016-08-04 | 2016-11-16 | 东莞宜安科技股份有限公司 | Electronic product lid or the surface treatment method of box |
| CN106929899A (en) * | 2017-02-16 | 2017-07-07 | 上海与德通讯技术有限公司 | The processing method of handset shell highlight surface mirror effect |
| CN107295765A (en) * | 2017-06-19 | 2017-10-24 | 无锡市恒利弘实业有限公司 | A kind of plastics mobile terminal shell of metal-like |
| CN107645866A (en) * | 2017-09-29 | 2018-01-30 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN107683037A (en) * | 2017-09-29 | 2018-02-09 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN109356996A (en) * | 2018-11-19 | 2019-02-19 | 襄阳市中康汽车配件有限公司 | A kind of transmission housing surface treating method that can improve automobile gearbox service life |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106086901A (en) * | 2016-07-31 | 2016-11-09 | 安庆市芊芊纸业有限公司 | A kind of component of machine process of surface treatment |
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| CN106929899A (en) * | 2017-02-16 | 2017-07-07 | 上海与德通讯技术有限公司 | The processing method of handset shell highlight surface mirror effect |
| CN107295765A (en) * | 2017-06-19 | 2017-10-24 | 无锡市恒利弘实业有限公司 | A kind of plastics mobile terminal shell of metal-like |
| CN107295765B (en) * | 2017-06-19 | 2019-10-25 | 无锡市恒利弘实业有限公司 | A kind of plastics mobile terminal shell of metal-like |
| CN107645866A (en) * | 2017-09-29 | 2018-01-30 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN107683037A (en) * | 2017-09-29 | 2018-02-09 | 广东欧珀移动通信有限公司 | Method for producing shell, housing and electronic equipment |
| CN107683037B (en) * | 2017-09-29 | 2020-05-12 | Oppo广东移动通信有限公司 | Shell manufacturing method, shell and electronic equipment |
| CN109356996A (en) * | 2018-11-19 | 2019-02-19 | 襄阳市中康汽车配件有限公司 | A kind of transmission housing surface treating method that can improve automobile gearbox service life |
| CN109356996B (en) * | 2018-11-19 | 2022-03-04 | 襄阳市中康汽车配件有限公司 | Surface treatment method for gearbox shell capable of prolonging service life of automobile gearbox |
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| CN104630792B (en) | 2017-11-14 |
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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 523841 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., Ltd. |