CN106702456B - Aluminium and aluminium alloy anode oxide remove nickel hole-sealing technology - Google Patents
Aluminium and aluminium alloy anode oxide remove nickel hole-sealing technology Download PDFInfo
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- CN106702456B CN106702456B CN201611141790.0A CN201611141790A CN106702456B CN 106702456 B CN106702456 B CN 106702456B CN 201611141790 A CN201611141790 A CN 201611141790A CN 106702456 B CN106702456 B CN 106702456B
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- aluminium
- nickel
- aluminium alloy
- hole
- anodic oxidation
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 89
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 82
- 239000004411 aluminium Substances 0.000 title claims abstract description 81
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000007789 sealing Methods 0.000 title claims abstract description 68
- 238000005516 engineering process Methods 0.000 title claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 73
- 230000003647 oxidation Effects 0.000 claims abstract description 69
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000002203 pretreatment Methods 0.000 claims abstract description 17
- 238000012805 post-processing Methods 0.000 claims abstract description 13
- 238000004043 dyeing Methods 0.000 claims abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 26
- 238000005406 washing Methods 0.000 claims description 13
- 238000007743 anodising Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 206010053615 Thermal burn Diseases 0.000 claims 1
- 208000027418 Wounds and injury Diseases 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 6
- 208000014674 injury Diseases 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 229940078494 nickel acetate Drugs 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000002048 anodisation reaction Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002815 nickel Chemical class 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- 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
- C25D11/12—Anodising more than once, e.g. in different baths
-
- 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
Abstract
The present invention relates to metal surface treatment process technical field more particularly to aluminium and alumilite process except nickel hole-sealing technology, comprise the following steps：Step 1 carries out pre-treatment to aluminium and aluminium alloy；After completing pre-treatment, first time anodic oxidation is carried out to aluminium and aluminium alloy for step 2；Step 3 is washed and dyed to the aluminium after an anodic oxidation and aluminium alloy；Step 4 carries out nickel sealing of hole to the aluminium after dyeing and aluminium alloy；Step 5 carries out nickel sealing of hole post processing to the aluminium after nickel sealing of hole and aluminium alloy；Step 6, aluminium and aluminium alloy after being post-processed to nickel sealing of hole carry out second of anodic oxidation and remove nickel；Step 7, aluminium after second of anodic oxidation and aluminium alloy are post-processed, obtain required product, the technique first time anodic oxidation, oxide-film is formed on the surface of aluminium and aluminium alloy, micropore is formed in oxidation film surface, the outer oxide film that second of anodic oxidation is formed wraps nickel, nickel will not be disengaged from micropore, reduce the injury of nickel.
Description
Technical field
The present invention relates to metal surface treatment process technical fields more particularly to aluminium and alumilite process to remove nickel sealing of hole work
Skill.
Background technology
At present, aluminium and its alloy are formed centainly generally using anodized surface guard technology in aluminium and its alloy surface
The oxide-film of thickness, due to the surface of oxide-film, there are a large amount of micropores, it is necessary to carry out appropriate sealing pores, common sealing of hole side
Method mainly has boiling water sealing hole, nickel salt sealing of hole, without nickel liquid medicine sealing of hole.Boiling water sealing hole method high energy consumption and it can not meet to higher anti-corrosion
The requirement of property；Common nickel salt hole sealing agent is nickeliferous to act on human body and environmental toxic evil；It easily fades during no nickel liquid medicine sealing of hole,
Therefore, except nickel alumilite process sealing of hole is badly in need of exploitation new technology.
The content of the invention
The object of the present invention is to provide aluminium and alumilite process except nickel hole-sealing technology, after first time anodic oxidation, had
Nickel sealing of hole, then two-step anodization is carried out, to have the function that except nickel.
To achieve the above object, the present invention adopts the following technical scheme that：
Aluminium and aluminium alloy anode oxide comprise the following steps except nickel hole-sealing technology：
Step 1 carries out pre-treatment to aluminium and aluminium alloy；
After completing pre-treatment, first time anodic oxidation is carried out to aluminium and aluminium alloy for step 2；
Step 3 is washed and dyed to the aluminium after an anodic oxidation and aluminium alloy；
Step 4 carries out nickel sealing of hole to the aluminium after dyeing and aluminium alloy；
Step 5 carries out nickel sealing of hole post processing to the aluminium after nickel sealing of hole and aluminium alloy；
Step 6, aluminium and aluminium alloy after being post-processed to nickel sealing of hole carry out second of anodic oxidation and remove nickel；
Step 7 post-processes the aluminium after second of anodic oxidation and aluminium alloy, obtains required product.
More preferably, the technological parameter of the first time anodic oxidation is:Temperature is 20 DEG C, time 8-50min, voltage 8-
16V, first time anodizing solution are the sulfuric acid solution of 200g/l.
More preferably, the technological parameter of second of anodic oxidation is:Temperature is 20 DEG C, time 5-10min, and voltage is
10-14V, first time anodizing solution are the sulfuric acid solution of 200g/l.
More preferably, in step 1, pre-treatment is carried out to aluminium and aluminium alloy and is comprised the following steps successively：Oil removing, washing, alkali cleaning,
Washing, chemical polishing, neutralization and washing.
More preferably, in step 5, aluminium and aluminium alloy carry out the post processing of nickel sealing of hole as washing.
More preferably, in step 7, aluminium and aluminium alloy post processing after second of anodic oxidation comprise the following steps successively：Water
It washes, boiling water is scalded, is washed and is dried.
The invention discloses aluminium and alumilite process except nickel hole-sealing technology, after the technique first time anodic oxidation, had
Nickel sealing of hole, then two-step anodization is carried out, first time anodic oxidation forms oxide-film on the surface of aluminium and aluminium alloy, is aoxidizing
Micropore is formed in film surface, second of anodic oxidation re-forms one layer of same oxide-film, micropore in original oxidation film surface
In nickel wrapped by the outer oxide film that second of anodic oxidation is formed, nickel will not be released from micropore, reduce nickel
Injury to human body and environment, meanwhile, product is not easy to fade, and every machining property index can all meet customer requirement.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, this is presently preferred embodiments of the present invention.
Embodiment 1
Aluminium and aluminium alloy anode oxide comprise the following steps except nickel hole-sealing technology：
Step 1 carries out pre-treatment to aluminium and aluminium alloy；
After completing pre-treatment, first time anodic oxidation is carried out to aluminium and aluminium alloy for step 2；
Step 3 is washed and dyed to the aluminium after an anodic oxidation and aluminium alloy；
Step 4 carries out nickel sealing of hole to the aluminium after dyeing and aluminium alloy；
Step 5 carries out nickel sealing of hole post processing to the aluminium after nickel sealing of hole and aluminium alloy；
Step 6, aluminium and aluminium alloy after being post-processed to nickel sealing of hole carry out second of anodic oxidation and remove nickel；
Step 7 post-processes the aluminium after second of anodic oxidation and aluminium alloy, obtains required product.
Wherein, nickel sealing of hole selects the nickel acetate system hole sealing processing agent of Japan's wild (OKUNO) production difficult to understand, using conventional technique
Condition realizes envelope nickel；
More preferably, the technological parameter of the first time anodic oxidation is:Temperature is 20 DEG C, time 50min, voltage 8V,
First time anodizing solution is the sulfuric acid solution of 200g/l, and first time anodic oxidation is formed on the surface of aluminium and aluminium alloy and aoxidized
Film forms micropore in oxidation film surface.
More preferably, the technological parameter of second of anodic oxidation is:Temperature is 20 DEG C, time 5min, and voltage is
14V, first time anodizing solution is the sulfuric acid solution of 200g/l, and after the completion of nickel sealing of hole, second of anodic oxidation is in original oxygen
Change film surface and re-form one layer of same oxide-film, the outer oxide film package that the nickel in micropore is formed by second of anodic oxidation
Firmly, nickel will not be released from micropore, reduce injury of the nickel to human body and environment, meanwhile, product is not easy to fade, Ge Xiangji
Tool processability index can all meet customer requirement.
More preferably, in step 1, pre-treatment is carried out to aluminium and aluminium alloy and is comprised the following steps successively：Oil removing, washing, alkali cleaning,
Washing, chemical polishing, neutralization and washing.Wherein, deoiling step is to carry out oil removing using degreaser, and degreaser selects Japan difficult to understand wild
(OKUNO) Austria open country 161 of production, removes aluminium and the greasy dirt of aluminum alloy surface；
Washing is cleaned using tap water, and chemical polishing carries out pickling, chemistry using the mixed solution of phosphoric acid and sulfuric acid
Polishing can increase the glossiness of product surface；
Neutralization is handled using nitric acid, removes the spot of aluminium and aluminum alloy surface, such as some metal oxides etc..
Wherein, in step 3, the coloring agent of Japan difficult to understand wild (OKUNO) production is selected in dyeing, and coloring agent is according to the selection of client
Select corresponding model and color.
More preferably, in step 5, aluminium and aluminium alloy carry out the post processing of nickel sealing of hole as washing.
More preferably, in step 7, aluminium and aluminium alloy post processing after second of anodic oxidation comprise the following steps successively：Water
It washes, boiling water is scalded, is washed and is dried.
Embodiment 2
Aluminium and aluminium alloy anode oxide comprise the following steps except nickel hole-sealing technology：
Step 1 carries out pre-treatment to aluminium and aluminium alloy；
After completing pre-treatment, first time anodic oxidation is carried out to aluminium and aluminium alloy for step 2；
Step 3 is washed and dyed to the aluminium after an anodic oxidation and aluminium alloy；
Step 4 carries out nickel sealing of hole to the aluminium after dyeing and aluminium alloy；
Step 5 carries out nickel sealing of hole post processing to the aluminium after nickel sealing of hole and aluminium alloy；
Step 6, aluminium and aluminium alloy after being post-processed to nickel sealing of hole carry out second of anodic oxidation and remove nickel；
Step 7 post-processes the aluminium after second of anodic oxidation and aluminium alloy, obtains required product.
Wherein, nickel sealing of hole selects the nickel acetate system hole sealing processing agent of Japan's wild (OKUNO) production difficult to understand, using conventional technique
Condition realizes envelope nickel；
More preferably, the technological parameter of the first time anodic oxidation is:Temperature is 20 DEG C, time 8min, voltage 16V,
First time anodizing solution is the sulfuric acid solution of 200g/l, and first time anodic oxidation is formed on the surface of aluminium and aluminium alloy and aoxidized
Film forms micropore in oxidation film surface.
More preferably, the technological parameter of second of anodic oxidation is:Temperature is 20 DEG C, time 10min, and voltage is
10V, first time anodizing solution is the sulfuric acid solution of 200g/l, and after the completion of nickel sealing of hole, second of anodic oxidation is in original oxygen
Change film surface and re-form one layer of same oxide-film, the outer oxide film package that the nickel in micropore is formed by second of anodic oxidation
Firmly, nickel will not be released from micropore, reduce injury of the nickel to human body and environment, meanwhile, product is not easy to fade, Ge Xiangji
Tool processability index can all meet customer requirement.
Embodiment 3
Aluminium and aluminium alloy anode oxide comprise the following steps except nickel hole-sealing technology：
Step 1 carries out pre-treatment to aluminium and aluminium alloy；
After completing pre-treatment, first time anodic oxidation is carried out to aluminium and aluminium alloy for step 2；
Step 3 is washed and dyed to the aluminium after an anodic oxidation and aluminium alloy；
Step 4 carries out nickel sealing of hole to the aluminium after dyeing and aluminium alloy；
Step 5 carries out nickel sealing of hole post processing to the aluminium after nickel sealing of hole and aluminium alloy；
Step 6, aluminium and aluminium alloy after being post-processed to nickel sealing of hole carry out second of anodic oxidation and remove nickel；
Step 7 post-processes the aluminium after second of anodic oxidation and aluminium alloy, obtains required product.
Wherein, nickel sealing of hole selects the nickel acetate system hole sealing processing agent of Japan's wild (OKUNO) production difficult to understand, using conventional technique
Condition realizes envelope nickel；
More preferably, the technological parameter of the first time anodic oxidation is:Temperature is 20 DEG C, time 20min, voltage 10V,
First time anodizing solution is the sulfuric acid solution of 200g/l, and first time anodic oxidation is formed on the surface of aluminium and aluminium alloy and aoxidized
Film forms micropore in oxidation film surface.
More preferably, the technological parameter of second of anodic oxidation is:Temperature is 20 DEG C, time 6min, and voltage is
12V, first time anodizing solution is the sulfuric acid solution of 200g/l, and after the completion of nickel sealing of hole, second of anodic oxidation is in original oxygen
Change film surface and re-form one layer of same oxide-film, the outer oxide film package that the nickel in micropore is formed by second of anodic oxidation
Firmly, nickel will not be released from micropore, reduce injury of the nickel to human body and environment, meanwhile, product is not easy to fade, Ge Xiangji
Tool processability index can all meet customer requirement.
Embodiment 4
Aluminium and aluminium alloy anode oxide comprise the following steps except nickel hole-sealing technology：
Step 1 carries out pre-treatment to aluminium and aluminium alloy；
After completing pre-treatment, first time anodic oxidation is carried out to aluminium and aluminium alloy for step 2；
Step 3 is washed and dyed to the aluminium after an anodic oxidation and aluminium alloy；
Step 4 carries out nickel sealing of hole to the aluminium after dyeing and aluminium alloy；
Step 5 carries out nickel sealing of hole post processing to the aluminium after nickel sealing of hole and aluminium alloy；
Step 6, aluminium and aluminium alloy after being post-processed to nickel sealing of hole carry out second of anodic oxidation and remove nickel；
Step 7 post-processes the aluminium after second of anodic oxidation and aluminium alloy, obtains required product.
Wherein, nickel sealing of hole selects the nickel acetate system hole sealing processing agent of Japan's wild (OKUNO) production difficult to understand, using conventional technique
Condition realizes envelope nickel；
More preferably, the technological parameter of the first time anodic oxidation is:Temperature is 20 DEG C, time 30min, voltage 9V,
First time anodizing solution is the sulfuric acid solution of 200g/l, and first time anodic oxidation is formed on the surface of aluminium and aluminium alloy and aoxidized
Film forms micropore in oxidation film surface.
More preferably, the technological parameter of second of anodic oxidation is:Temperature is 20 DEG C, time 7min, and voltage is
13V, first time anodizing solution is the sulfuric acid solution of 200g/l, and after the completion of nickel sealing of hole, second of anodic oxidation is in original oxygen
Change film surface and re-form one layer of same oxide-film, the outer oxide film package that the nickel in micropore is formed by second of anodic oxidation
Firmly, nickel will not be released from micropore, reduce injury of the nickel to human body and environment, meanwhile, product is not easy to fade, Ge Xiangji
Tool processability index can all meet customer requirement.
The invention discloses aluminium and alumilite process except nickel hole-sealing technology, after the technique first time anodic oxidation, had
Nickel sealing of hole, then two-step anodization is carried out, to have the function that except nickel.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than the present invention is protected
The limitation of scope is protected, although being explained in detail with reference to preferred embodiment to the present invention, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (1)
1. aluminium and aluminium alloy anode oxide remove nickel hole-sealing technology, which is characterized in that comprise the following steps：
Step 1 carries out pre-treatment to aluminium and aluminium alloy；
After completing pre-treatment, first time anodic oxidation is carried out to aluminium and aluminium alloy for step 2；
Step 3 is washed and dyed to the aluminium after an anodic oxidation and aluminium alloy；
Step 4 carries out nickel sealing of hole to the aluminium after dyeing and aluminium alloy；
Step 5 carries out nickel sealing of hole post processing to the aluminium after nickel sealing of hole and aluminium alloy；
Step 6, aluminium and aluminium alloy after being post-processed to nickel sealing of hole carry out second of anodic oxidation and remove nickel；
Step 7 post-processes the aluminium after second of anodic oxidation and aluminium alloy, obtains required product；
The technological parameter of the first time anodic oxidation is:Temperature is 20 DEG C, time 8-50min, voltage 8-16V, for the first time
Anodizing solution is the sulfuric acid solution of 200g/l；
The technological parameter of second of anodic oxidation is:Temperature is 20 DEG C, time 5-10min, voltage 10-14V, second
Secondary anodizing solution is the sulfuric acid solution of 200g/l；
In step 1, pre-treatment is carried out to aluminium and aluminium alloy and is comprised the following steps successively：Oil removing, washing, alkali cleaning, washing, chemistry
Polishing is neutralized and washed；
In step 5, aluminium and aluminium alloy carry out the post processing of nickel sealing of hole as washing；
In step 7, aluminium and aluminium alloy post processing after second of anodic oxidation comprise the following steps successively：Washing, boiling water scald
It washes, wash and dries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141790.0A CN106702456B (en) | 2016-12-12 | 2016-12-12 | Aluminium and aluminium alloy anode oxide remove nickel hole-sealing technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611141790.0A CN106702456B (en) | 2016-12-12 | 2016-12-12 | Aluminium and aluminium alloy anode oxide remove nickel hole-sealing technology |
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| CN106702456B true CN106702456B (en) | 2018-05-29 |
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| CN107893251A (en) * | 2017-12-05 | 2018-04-10 | 湖南航天磁电有限责任公司 | A kind of pre-treating method of 7 line aluminium alloy anodic oxidation |
| CN108486628A (en) * | 2018-03-22 | 2018-09-04 | 富士智能机电（珠海）有限公司 | A kind of pre- sealing of hole secondary oxidation technique |
| CN108950638A (en) * | 2018-07-27 | 2018-12-07 | 歌尔股份有限公司 | Aluminum alloy materials and preparation method thereof |
| CN109183111B (en) * | 2018-08-03 | 2021-02-09 | 昆山品钰康机电设备有限公司 | Surface treatment process of aluminum alloy for automobile interior and exterior decoration |
| CN111235619B (en) * | 2020-01-15 | 2022-05-31 | 东莞市四辉表面处理科技有限公司 | Efficient nickel-removing cleaning powder after hole sealing of aluminum anode and preparation method thereof |
| CN111549365A (en) * | 2020-04-30 | 2020-08-18 | 广州上仕工程管理有限公司 | Surface treatment process for aluminum product |
| CN111850652B (en) * | 2020-06-03 | 2021-05-28 | 海盐县赛鑫金属制品有限公司 | Aluminum and aluminum alloy anodic oxidation nickel removal hole sealing process and device thereof |
| CN112522760A (en) * | 2020-12-18 | 2021-03-19 | 东莞市新东明科技有限公司 | Method for removing nickel from anodic aluminum oxide alloy |
| CN114808077B (en) * | 2022-05-22 | 2023-09-01 | 广东兴发铝业有限公司 | Surface treatment process of aluminum material |
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| CN101845654A (en) * | 2009-03-23 | 2010-09-29 | 浙江帝龙新材料股份有限公司 | Aluminum strip anode oxidization process |
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| CN105671615A (en) * | 2016-01-13 | 2016-06-15 | 广东欧珀移动通信有限公司 | Surface treatment process for achieving 3D effect of electronic product |
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| JP5511313B2 (en) * | 2008-11-07 | 2014-06-04 | キヤノン株式会社 | Optical element molding die, optical element molding mold manufacturing method, optical element, and optical element manufacturing method |
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| CN101845654A (en) * | 2009-03-23 | 2010-09-29 | 浙江帝龙新材料股份有限公司 | Aluminum strip anode oxidization process |
| CN104908504A (en) * | 2014-03-10 | 2015-09-16 | 陈英杰 | Metal colored drawing board and manufacturing method thereof |
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