CN107151811A - Aluminum alloy surface multicolour aggregation process - Google Patents
Aluminum alloy surface multicolour aggregation process Download PDFInfo
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- CN107151811A CN107151811A CN201710327873.7A CN201710327873A CN107151811A CN 107151811 A CN107151811 A CN 107151811A CN 201710327873 A CN201710327873 A CN 201710327873A CN 107151811 A CN107151811 A CN 107151811A
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- aluminum alloy
- coloring
- multicolour
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- aggregation process
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/243—Chemical after-treatment using organic dyestuffs
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Metallurgy (AREA)
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Abstract
The invention discloses aluminum alloy surface multicolour aggregation process, including the steps：Anodic oxidation, anodic oxidation is carried out to aluminum alloy product surface to be colored；Colour for the first time；First time bat printing；Decolourize, carry out peeling off coloring for the first time under conditions of 25 DEG C ± 5 DEG C with the sulfuric acid of concentration 60%, temperature control；Second of coloring；Second of bat printing；Third time is coloured, de-oiling, sealing of hole.The characteristics of present invention is easy to colour and closed due to porous using the film layer formed after aluminum alloy product surface anodic oxidation, corrosion stability is higher, by the scheme that color is peeled off after coloring, aluminum alloy product surface is polymerized to two colors, three colors, four colors, five colors etc., so that abundant color is presented in aluminum alloy product surface, effectively strengthen its third dimension, abstract sense, picture sense, stereovision.
Description
Technical field
The present invention relates to metal working technical area, more particularly to a kind of aluminum alloy surface multicolour aggregation process.
Background technology
The anodized of aluminium and aluminium alloy, is that anode is placed in electrolyte solution typically by aluminum or aluminum alloy product
In, using electrolysis, its surface is formed the process of aluminum oxide film.Negative electrode is that chemical stability is high in electrolytic solution
Material, such as lead, stainless steel, titanium etc..It is exactly the principle of water electrolysis on the spirit of alumilite process.Due to electric in electrolytic process
Extremely complex oxidation-reduction reaction occurs for pole, and the structural property of anode oxide film has closely related with it.Therefore by changing
Become anodic oxidation operation bar to make to meet different use requirements.
The chemical stain of alumilite process is obtained based on the porous membrane layer absorption dyestuff ability the same just like textile fabric
With progress.The pore diameter of general anode oxide film is 0.01-0.03 μm, and dyestuff is separated into unimolecule in water, diameter
For 0.0015-0.0030 μm, dyestuff is attracted on pore surface and to pore diffusion, accumulation, and and aluminum oxide during coloring
Carry out ionic bond, Hydrogenbond and colour film layer, through sealing pores, dyestuff is fixed in hole.
In the prior art, due to cost considerations, most aluminum alloy product surface coloring, is all using the side such as spraying
Formula, not only coloring easily comes off, and can not cause aluminum alloy surface rich and variedization.
The content of the invention
The technical problem to be solved in the present invention is to provide aluminum alloy surface multicolour aggregation process, and the handling process can
Aluminum alloy product surface is carried out to assemble coloring after anodic oxidation, makes polymerization multiple color in aluminum products surface, effectively strengthens aluminium
The sense of alloy product surface three-dimensional, abstract sense, picture sense, stereovision.
In order to solve the above technical problems, the invention provides aluminum alloy surface multicolour aggregation process, including following step
Suddenly：
Step one, anodic oxidation, anodic oxidation is carried out to aluminum alloy product surface to be colored；
Step 2, is coloured for the first time；
Step 3, first time bat printing；
Step 4, decolourizes, and carries out peeling off coloring for the first time under conditions of 25 DEG C ± 5 DEG C with the sulfuric acid of concentration 60%, temperature control；
Step 5, second of coloring；
Step 6, second of bat printing；
Step 7, third time is coloured,
Step 8, de-oiling；
Step 9, sealing of hole.
Wherein, the step one includes:The Al-alloy products are placed in electrolyte and makees anode and is electrolysed, will be described
Aluminum alloy product surface aoxidizes to form aluminum oxide film.
Wherein, the acid solution is one of sulfuric acid, chromic acid, oxalic acid, and the thickness of the aluminum oxide film is 5 to 20 microns.
Wherein, the first time by step 2 colours, and is that the Al-alloy products for obtaining the step one are placed on often
In warm colour cylinder, 10-20min coloring is carried out with concentration 8-12g/L, pH value 4.5-5.6 Clariant coloring agent.
Wherein, the de-oiling of the step 8, is that the Al-alloy products soak at room temperature for obtaining the step 7 is in concentration
1-5min in 5g/L acid solution.
The present invention due to porous using the film layer formed after aluminum alloy product surface anodic oxidation is easy to colour and closes,
The characteristics of corrosion stability is higher, by peeling off the scheme of color after coloring, two colors, three colors, four are polymerized to by aluminum alloy product surface
Color, five colors etc. so that abundant color is presented in aluminum alloy product surface, effectively strengthens its third dimension, abstract sense, picture sense, layer
Secondary sense.
Embodiment
Aluminum alloy surface multicolour aggregation process flow of the present invention is:It includes the steps：
Step one, anodic oxidation, anodic oxidation is carried out to aluminum alloy product surface to be colored,
Al-alloy products are placed in corresponding electrolyte（Such as sulfuric acid, chromic acid, oxalic acid）In make anode, in specified conditions and additional
Under the function of current, it is electrolysed.Anode Al-alloy products are aoxidized, and aluminum oxide film is formed on surface, and its thickness is 5-20 microns.
Step 2, colours, the Al-alloy products after activation process in step 2 is placed in normal temperature color cylinder for the first time, uses
Concentration 8-12g/L, pH value 4.5-5.6 Clariant coloring agent carry out first time coloring；Coloration time：10-20min
Step 3, tampon-printing process：
Bat printing belongs to specialty printing mode, it can on the product surface of irregular abnormity printing word, figure and image, it is existing
Just turning into a kind of important specialty printing.
Pad-transfer printing ink rate of drying is fast, have resistance to strong acid, alkali particularity.
Step 4, decolourize, the sulfuric acid of concentration 60%, temperature control is carried out under conditions of 25 DEG C ± 5 DEG C peel off first time
Color；
Step 5, second of coloring,
Step 6, bat printing,
Step 7, third time is coloured,
Step 8, de-oiling technique：
1st, acid solution de-oiling
2nd, de-oiling agent concentration：5g/L
3rd, de-oiling agent temperature：Normal temperature
4th, the de-oiling agent time：1-5min
Step 9, sealing of hole condition：Sealing pores are, the closing of the micropore of anode oxide film, and will to be deposited on pore inner dye and consolidate
It is fixed, therefore sealing pores are dyeing part of the whole, sealing pores, its simplest method is handled in boiling water,
As long as carrying out appropriate, it is ensured that dyeing film shows its due fast colours degree, but also can have product to prevent hand
Finger mark, the ability of color spot.
Operating condition：
1st, pore-sealing liquid concentration：6-8g/L
2nd, the operating time：40min-60min
3rd, temperature：80-100℃
The aluminum alloy surface multicolour aggregation process of the present invention, same product is gathered in by aluminium alloy anode oxide surface multicolour
Scheme in plane, is different from five bronze inks of aluminum alloy surface spraying or printing of prior art.
The technique of the present invention, it is only necessary to which once oxidation can just complete the multiple coloring effect of same plane, it is every as auxiliary
Secondary coloring redundance decolourizes, without influenceing to colour next time, the technique that the container and cooling for sealing sulfuric acid suppress heating.
Seal the manufacture of sub-cooled sulfuric acid cylinder, operating procedure：
1st, cell body：Stainless steel, PP grooves etc..Avoid the cell body using materials such as iron, copper, lead
2nd, cooling tube：Both sides add titanium tube to cool down in cell body, reduce sulfuric acid temperature in groove.
3rd, cell body sealing inner container uses PVDF sheet materials.
4th, tank liquor concentration：35-40g/L sulfuric acid,
5th, the operating time：5-20min
6th, operation temperature：10-35℃
Finally it should be noted that the foregoing is only presently preferred embodiments of the present invention, rather than to technical solution of the present invention
Limit, any equivalent substitution done to the technology of the present invention feature or corresponding improvement, still within protection scope of the present invention.
Claims (5)
1. aluminum alloy surface multicolour aggregation process, it is characterised in that including the steps：
Step one, anodic oxidation, anodic oxidation is carried out to aluminum alloy product surface to be colored；
Step 2, is coloured for the first time；
Step 3, first time bat printing；
Step 4, decolourizes, and carries out peeling off coloring for the first time under conditions of 25 DEG C ± 5 DEG C with the sulfuric acid of concentration 60%, temperature control；
Step 5, second of coloring；
Step 6, second of bat printing；
Step 7, third time is coloured,
Step 8, de-oiling；
Step 9, sealing of hole.
2. aluminum alloy surface multicolour aggregation process as claimed in claim 1, it is characterised in that the step one includes:Will
The Al-alloy products, which are placed in electrolyte, to be made anode and is electrolysed, and the aluminum alloy product surface is aoxidized to form aluminum oxide film
Film.
3. aluminum alloy surface multicolour aggregation process as claimed in claim 2, it is characterised in that the acid solution is sulfuric acid, chromium
One of acid, oxalic acid, the thickness of the aluminum oxide film is 5 to 20 microns.
4. aluminum alloy surface multicolour aggregation process as claimed in claim 1, it is characterised in that described by the first of step 2
Secondary coloring, is that the Al-alloy products for obtaining the step one are placed in normal temperature color cylinder, with concentration 8-12g/L, pH value 4.5-
5.6 Clariant coloring agent carries out 10-20min coloring.
5. aluminum alloy surface multicolour aggregation process as claimed in claim 1, it is characterised in that the de-oiling of the step 8,
It is the Al-alloy products soak at room temperature for obtaining step 7 1-5min in concentration is 5g/L acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710327873.7A CN107151811A (en) | 2017-05-11 | 2017-05-11 | Aluminum alloy surface multicolour aggregation process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710327873.7A CN107151811A (en) | 2017-05-11 | 2017-05-11 | Aluminum alloy surface multicolour aggregation process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626669A (en) * | 2017-09-19 | 2018-01-26 | 南通市中京机械有限公司 | Surface of aluminum plate processing method |
| CN108531960A (en) * | 2018-03-30 | 2018-09-14 | 维沃移动通信有限公司 | A kind of aluminium alloy component colouring method and shell |
| CN112746301A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Manufacturing method of shell of electronic equipment, shell and electronic equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5589500A (en) * | 1978-12-27 | 1980-07-07 | Natl Inst For Res In Inorg Mater | Electrolytic multi-coloration for aluminum or aluminum alloy anode oxide film |
| CN88103137A (en) * | 1988-05-30 | 1988-11-16 | 天津市圆珠笔厂 | Cloisonne on aluminum base |
| CN101152820A (en) * | 2006-09-25 | 2008-04-02 | 佛山市顺德区汉达精密电子科技有限公司 | Technique for producing multicolor pattern on stainless steel surface |
| CN101649478A (en) * | 2008-08-14 | 2010-02-17 | 比亚迪股份有限公司 | Method and equipment for preparing material with multi-color oxide film on surface |
| CN103397363A (en) * | 2013-08-14 | 2013-11-20 | 深圳天珑无线科技有限公司 | Anodic oxidation process |
-
2017
- 2017-05-11 CN CN201710327873.7A patent/CN107151811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5589500A (en) * | 1978-12-27 | 1980-07-07 | Natl Inst For Res In Inorg Mater | Electrolytic multi-coloration for aluminum or aluminum alloy anode oxide film |
| CN88103137A (en) * | 1988-05-30 | 1988-11-16 | 天津市圆珠笔厂 | Cloisonne on aluminum base |
| CN101152820A (en) * | 2006-09-25 | 2008-04-02 | 佛山市顺德区汉达精密电子科技有限公司 | Technique for producing multicolor pattern on stainless steel surface |
| CN101649478A (en) * | 2008-08-14 | 2010-02-17 | 比亚迪股份有限公司 | Method and equipment for preparing material with multi-color oxide film on surface |
| CN103397363A (en) * | 2013-08-14 | 2013-11-20 | 深圳天珑无线科技有限公司 | Anodic oxidation process |
Non-Patent Citations (1)
| Title |
|---|
| 赵韵文等: ""铝制品阳极氧化处理彩色染印工艺"", 《材料保护》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626669A (en) * | 2017-09-19 | 2018-01-26 | 南通市中京机械有限公司 | Surface of aluminum plate processing method |
| CN108531960A (en) * | 2018-03-30 | 2018-09-14 | 维沃移动通信有限公司 | A kind of aluminium alloy component colouring method and shell |
| CN112746301A (en) * | 2019-10-31 | 2021-05-04 | 华为技术有限公司 | Manufacturing method of shell of electronic equipment, shell and electronic equipment |
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Address after: 510000 Shansancun, Shajing Town, An District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Boying Precision Co., Ltd. Address before: 510000 Shansancun, Shajing Town, An District, Shenzhen City, Guangdong Province Applicant before: Pioneer Metals Corporation, Shenzhen |
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Application publication date: 20170912 |
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