CN107236980A - Composite anode oxide color method applied to aluminum alloy surface processing - Google Patents
Composite anode oxide color method applied to aluminum alloy surface processing Download PDFInfo
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- CN107236980A CN107236980A CN201710468794.8A CN201710468794A CN107236980A CN 107236980 A CN107236980 A CN 107236980A CN 201710468794 A CN201710468794 A CN 201710468794A CN 107236980 A CN107236980 A CN 107236980A
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- alloy surface
- aluminum alloy
- oxide
- composite anode
- film
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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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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
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Abstract
Applied to the composite anode oxide color method of aluminum alloy surface processing, its feature is with comprising the following steps：Pre-treatment is carried out to aluminum alloy surface；Aluminium oxide alloy surface is in aluminum alloy surface formation film layer；Colouring；Decolourize；Secondary colouring；Decolourize；Three colourings；Sealing of hole, aluminum alloy surface reaches surface broken colour state.The aluminum alloy surface color for the composite anode oxide color method processing that the present invention is handled applied to aluminum alloy surface has connection and immixture very well, the uniformity and adhesive force are deposited in the product so as to effectively oxidation reinforced color, avoid oxide-film and dyestuff became uneven, improve the stability of oxide-film, form effect lasting, performance is stable, forms harmless composite anode coloring oxide-film and its surface oxidation film thickness, hardness, wearability are substantially improved.
Description
Technical field
The present invention relates to the method for anodizing and coloring handled applied to aluminum alloy surface, relate more specifically to be applied to aluminium
The composite anode oxide color method of alloy surface processing.
Background technology
Application of the anode oxidation coloration technique in terms of alloy product making for aluminum alloy surface processing is increasingly
Extensively, the method generally used is the oxide-film that aluminium alloy adds dyestuff formation solid color in oxidizing process, is then carried out
The Surface Appearance of Seal treatment formation solid color.At present, the method is also confined to the coloring oxidation side of solid color mostly
Face.For oxidation color be used in mixed way and allotment lacks research.It is currently known composite anode oxide color method on the market
It is without disclosed.
The content of the invention
It is an object of the invention to provide the composite anode oxide color method handled applied to aluminum alloy surface.
Applied to the composite anode oxide color method of aluminum alloy surface processing, comprise the following steps：
(9) pre-treatment is carried out to aluminum alloy surface；
(10) aluminium oxide alloy surface is in aluminum alloy surface formation film layer；
(11) paint；
(12) decolourize；
(13) secondary colouring；
(14) decolourize；
(15) three colourings；
(16) sealing of hole, aluminum alloy surface reaches surface broken colour state.
Preferably, in above-mentioned steps (3), (5) and (7) step paint process use material include nitric acid, sulfuric acid,
Phosphoric acid, sodium oxide molybdena.The material is the special organic dyestuff of anode, environmentally friendly hole sealing agent.
Preferably, above-mentioned sulfuric acid concentration is preferably 182-198g/L.
Preferably, above-mentioned steps (2) use the voltage of direct current for 5~10V, the pulse frequency of power supply wave shape：0~
100Hz。
Preferably, process of being painted in above-mentioned steps (3), (5) and (7) step fully dissolves organic dyestuff, heats
To 42-44.5 DEG C and it is incubated, is put into the good anodic aluminum oxide film of pre-treatment, soaks 22~29min.
Preferably, above-mentioned hole-sealing technology is specially：Using deionized water in 98-100 DEG C of temperature, pH value 5.5~6.5
22~29min of lower boiling.
Compared with prior art, the device have the advantages that：
The composite anode oxide color method that the present invention is handled applied to aluminum alloy surface is according to certain sequencing, suitable
Mixed and added to process alloy product when temperature and temperature environment, the aluminium alloy table handled by the inventive method
Face color has connection and immixture very well, and the uniformity and attachment are deposited in the product so as to effectively oxidation reinforced color
Power, it is to avoid oxide-film and dyestuff became uneven, improves the stability of oxide-film, forms effect persistently, performance is stable, is formed to people
The harmless composite anode coloring oxide-film of body.The inventive method is changeable in the surface color of alloy product, bright in luster, can be with
Realize that multiple color is arranged in pairs or groups simultaneously, different colours, the independent assortment of pattern can be protected for a long time during the use of alloy product
Color is held, corrosion resistance, anti-wear performance is good.
The inventive method has taken into full account the physicochemical properties and complementarity of raw material and dyestuff, such as soluble, volatilization and
Color effect and continuation of decomposition temperature, fusing point and dyestuff etc..Meanwhile, the inventive method passes through to aluminum alloy materials institute
Analysis containing composition, carries out proportioning processing to raw material used and dyestuff, fully takes into account composition and the anodic oxidation of raw material
During temperature influence, to keep efficient oxidation effect.Alloy product its Surface Oxygen after being handled by the inventive method
Change film thickness, hardness, wearability to be substantially improved.
Embodiment
Embodiment 1 is applied to the composite anode oxide color method that aluminum alloy surface is handled
Applied to the composite anode oxide color method of aluminum alloy surface processing, comprise the following steps：
(1) pre-treatment is carried out to aluminum alloy surface；
(2) aluminium oxide alloy surface is in aluminum alloy surface formation film layer：The voltage of direct current is used for 5~10V, power supply ripple
The pulse frequency of shape：0~100Hz；
(3) paint；The material that process of being painted in step (3), (5) and (7) step is used includes nitric acid, sulfuric acid, phosphoric acid, oxygen
Change sodium；The material is the special organic dyestuff of anode, environmentally friendly hole sealing agent；Colouring process fully dissolves organic dyestuff, is heated to
42-44.5 DEG C and it is incubated, is put into the good anodic aluminum oxide film of pre-treatment, soaks 29min；Sulfuric acid concentration is 186g/L.
(4) decolourize；
(5) secondary colouring, repeat step (3)；
(6) decolourize；
(7) three colourings, repeat step (3)；
(8) sealing of hole, using deionized water in 100 DEG C of temperature, 5.5~6.5 times boiling 26min of pH value, aluminum alloy surface reaches
To surface broken colour state；
The product in market is generally single tone, and the product obtained by the example method can be realized many in product appearance
The effect of color combination is planted, the product than existing market has more the colorful property of color, vividness.
The fenestra distributive law on the oxide-film top layer obtained by the example method is 90 × 109-95×109Individual/cm-2, it is described
The fenestra distributive law of oxide-film nexine is 35 × 109-39×109Individual/cm-2；The thickness of the anode oxide film is 25 μm of -35 μ
m。
Embodiment 2 is applied to the composite anode oxide color method that aluminum alloy surface is handled, and comprises the following steps：
(1) pre-treatment is carried out to aluminum alloy surface；
(2) aluminium oxide alloy surface is in aluminum alloy surface formation film layer：The voltage of direct current is used for 5~10V, power supply ripple
The pulse frequency of shape：0~100Hz；
(3) paint；The material that process of being painted in step (3), (5) and (7) step is used includes nitric acid, sulfuric acid, phosphoric acid, oxygen
Change sodium；The material is the special organic dyestuff of anode, environmentally friendly hole sealing agent；Colouring process fully dissolves organic dyestuff, is heated to
44 DEG C and it is incubated, is put into the good anodic aluminum oxide film of pre-treatment, soaks 27min；Sulfuric acid concentration is 190g/L.
(4) decolourize；
(5) secondary colouring, repeat step (3)；
(6) decolourize；
(7) three colourings, repeat step (3)；
(8) sealing of hole, using deionized water in 99 DEG C of temperature, 5.5~6.5 times boiling 29min of pH value, aluminum alloy surface reaches
Surface broken colour state.
Embodiment 3 is applied to the composite anode oxide color method that aluminum alloy surface is handled, and comprises the following steps：
(1) pre-treatment is carried out to aluminum alloy surface, specifically includes ungrease treatment, desmut processing, chemical polishing processing；It is de-
In fat process step, using tertiary sodium phosphate degreasing in the basic conditions, the temperature of ungrease treatment is 55-59 DEG C, and the time is 5min；
Desmut processing uses nitric acid desmut, and the temperature of desmut processing is room temperature, and the time is 80s；The step handled in chemical polishing
In rapid, polishing agent uses phosphoric acid (1.70g/mL), and the temperature of chemical polishing processing is 105 DEG C, and the time is 12s；
(2) aluminium oxide alloy surface is in aluminum alloy surface formation film layer：The voltage of direct current is used for 5~10V, power supply ripple
The pulse frequency of shape：0~100Hz；
(3) paint；The material that process of being painted in step (3), (5) and (7) step is used includes nitric acid, sulfuric acid, phosphoric acid, oxygen
Change sodium；The material is the special organic dyestuff of anode, environmentally friendly hole sealing agent；Colouring process fully dissolves organic dyestuff, is heated to
42 DEG C and it is incubated, is put into the good anodic aluminum oxide film of pre-treatment, soaks 22min；Sulfuric acid concentration is 198g/L.
(4) decolourize；
(5) secondary colouring, repeat step (3)；
(6) decolourize；
(7) three colourings, repeat step (3)；
(8) sealing of hole, using deionized water in 98 DEG C of temperature, 5.5~6.5 times boiling 29min of pH value, aluminum alloy surface reaches
Surface broken colour state.
Above in association with most preferred embodiment, invention has been described, but the invention is not limited in implementation disclosed above
Example, and modification, equivalent combinations that the various essence according to the present invention are carried out should be covered.
Claims (6)
1. the composite anode oxide color method handled applied to aluminum alloy surface, its feature is with comprising the following steps：
(1) pre-treatment is carried out to aluminum alloy surface；
(2) aluminium oxide alloy surface is in aluminum alloy surface formation film layer；
(3) paint；
(4) decolourize；
(5) secondary colouring；
(6) decolourize；
(7) three colourings；
(8) sealing of hole, aluminum alloy surface reaches surface broken colour state.
2. according to the method described in claim 1, its feature is with process of being painted in step (3), (5) and (7) step is adopted
Material includes nitric acid, sulfuric acid, phosphoric acid, sodium oxide molybdena；The material is the special organic dyestuff of anode, environmentally friendly hole sealing agent.
3. method according to claim 2, it is characterised in that the sulfuric acid concentration is 182-198g/L.
4. the method according to claim 1-3 any one, it is characterised in that the step (2) uses the electricity of direct current
Press as 5~10V, the pulse frequency of power supply wave shape：0~100Hz.
5. method according to claim 4, it is characterised in that process of being painted in step (3), (5) and (7) step will
Organic dyestuff fully dissolves, and is heated to 42-44.5 DEG C and is incubated, and is put into the good anodic aluminum oxide film of pre-treatment, and immersion 22~
29min。
6. method according to claim 5, it is characterised in that step (8) described hole-sealing technology is specially：Using deionization
Water is in 98-100 DEG C of temperature, 5.5~6.5 times 22~29min of boiling of pH value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710468794.8A CN107236980A (en) | 2017-06-20 | 2017-06-20 | Composite anode oxide color method applied to aluminum alloy surface processing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710468794.8A CN107236980A (en) | 2017-06-20 | 2017-06-20 | Composite anode oxide color method applied to aluminum alloy surface processing |
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| CN107236980A true CN107236980A (en) | 2017-10-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023048536A1 (en) * | 2021-09-24 | 2023-03-30 | 삼성전자 주식회사 | Electronic device and method for manufacturing housing of electronic device |
-
2017
- 2017-06-20 CN CN201710468794.8A patent/CN107236980A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023048536A1 (en) * | 2021-09-24 | 2023-03-30 | 삼성전자 주식회사 | Electronic device and method for manufacturing housing of electronic device |
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Application publication date: 20171010 |