CN100562609C - Method at aluminium and aluminum alloy surface one step generation colored oxide film - Google Patents
Method at aluminium and aluminum alloy surface one step generation colored oxide film Download PDFInfo
- Publication number
- CN100562609C CN100562609C CNB2006100126753A CN200610012675A CN100562609C CN 100562609 C CN100562609 C CN 100562609C CN B2006100126753 A CNB2006100126753 A CN B2006100126753A CN 200610012675 A CN200610012675 A CN 200610012675A CN 100562609 C CN100562609 C CN 100562609C
- Authority
- CN
- China
- Prior art keywords
- grams per
- aluminum alloy
- per liter
- aluminium
- oxide film
- 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.)
- Expired - Fee Related
Links
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
A kind of technology at aluminium and aluminum alloy surface one step generation colored oxide film, this technology is for directly to place the aqueous solution that contains water glass 2～10 grams per liters, sodium hydroxide 0.5～3 grams per liter, Sodium orthomolybdate 0.2～4 grams per liter, Sodium Silicofluoride 0.1～9 grams per liter, sodium wolframate 0.2～10 grams per liter, potassium permanganate 0.5～4 grams per liter to carry out oxidation aluminum or aluminum alloy, and oxidation current density is 0.08～2A/ centimetre
2, temperature is 10～50 ℃, oxidization time is 0.5～3 hour, according to the oxidization time difference, can directly obtain yellow-brown-black oxide film on the aluminum or aluminum alloy surface.This oxide thickness can reach 20～200 microns, and oxide film is at aluminium and aluminum alloy surface growth in situ, and surperficial even compact has high wear resistance and solidity to corrosion.This technology has heat-tinting one step to be finished, and technology is simple, low, the free of contamination characteristics of cost.
Description
Technical field
The present invention relates to a kind of technology at aluminium and aluminum alloy surface generation colored oxide film.
Background technology
The present invention is the method for preparing the colored oxide film layer in aluminium and aluminum alloy surface direct oxidation.The preparation method of aluminium and aluminum alloy surface colored oxide film is the anodic oxidation in sulfuric acid electrolyte with aluminium and aluminium alloy earlier, in containing the salts solution of metal, carry out electrolysis treatment then, under effect of electric field, metal ion is entered and deposit in the hole of oxide film, thereby make aluminium and aluminum alloy surface painted.This colorize method is widely used in the surface colour of aluminium section bar for building at present.
The technical process of general electrolytic coloring mainly comprises oil removing degreasing, alkaline etching, neutralization, anodic oxidation, electrolytic coloring process.Aluminium alloy anode oxide---coloring process can aluminum alloy surface form color various have an ornamental protective membrane, improved the surface property of aluminium.
Aluminium alloy electrolysis colorize method after the anodic oxidation has multiple, and nickel salt electrolytic coloring, pink salt electrolytic coloring, silver salt electrolytic coloring, permanganate electrolytic coloring, selenite electrolytic coloring are arranged.Chinese patent CN96119133.3 is behind aluminium alloy anode oxide, at room temperature soak with 10～180 grams per liter sulfuric acid or 50～300 grams per liter phosphoric acid and to carry out reaming and handle, using the solution of being made up of selenium salt color additive and sulfuric acid etc. then is to carry out electrolytic coloring under 8～12 volts at voltage, the painted time is 2～5 minutes, and made oxide film is golden yellow.Chinese patent CN89105774.9 is in sulphuric acid soln after the anodic oxidation, utilize and adopt 50 hertz alternating-current to carry out electrolytic coloring in the aqueous solution of sulfur acid nickel, ammonium sulfate, manganous sulfate, ammonium citrate and boric acid, can obtain by amber different colours oxide film in painted 2～10 minutes to the black transition.But this method oxidation and painted be divided into two the step finish, complex process, strict to pre-treatment.Therefore, adopt a kind of novel method of environmental protection, generate colored aluminium oxide alloy film in one step of aluminum alloy surface and have realistic meaning with high anti-corrosion and high-wearing feature.
Summary of the invention
The object of the present invention is to provide a kind of method at aluminium and aluminum alloy surface one step generation colored oxide film, this method unites two into one oxidation and painted two steps, forms colored oxide film at aluminium and one step of aluminum alloy surface.Adopt method of the present invention to handle aluminium and aluminium alloy, not strict to the pre-treatment requirement, treatment solution is a weakly alkaline, and operating temperature range is wide, in the treating processes environment is not polluted.
Colored method for oxidation of one step of aluminium of the present invention and aluminium alloy, its technical process is: put on the shelf → direct oxidation is painted → washing → air-dry → packing.
The embodiment of this method:
Aluminum or aluminum alloy is directly placed the electrolytic solution that contains membrane-forming agent and additive, and the aluminum or aluminum alloy workpiece is connected to the positive pole of power supply, and as anode, stainless steel vessel is received on the negative pole of power supply simultaneously as electrolyzer and negative electrode, adopts the oxidation power supply to carry out oxidation.
The present invention adopts the continuous current oxidation, oxidation current density be 0.08～2 the peace/centimetre
2, the system that is cooled with circulating water is controlled at electrolyte temperature in 10～50 ℃ of scopes, and oxidization time is 0.5～3 hour, and oxidation finishes after washing, oven dry can be at the oxide film of aluminium and aluminum alloy surface generation yellow-brown-black.
Membrane-forming agent of the present invention consists of water glass 2～10 grams per liters, sodium hydroxide 0.5～2 grams per liter, Sodium orthomolybdate 0.2～4 grams per liter, Sodium Silicofluoride 0.1～9 grams per liter; Additive is sodium wolframate 0.2～10 grams per liter, potassium permanganate 0.5～4 grams per liter.
The oxidation power supply of employing of the present invention is a kind of pulse power of non-sinusoidal wave, and its forward output crest voltage is 220～1000 volts, and negative sense output crest voltage is 0～100 volt, and its output waveform is an oblique triangle.
A kind of method at aluminium and aluminum alloy surface one step generation colored oxide film of the present invention, along with the oxidization time difference, the color on surface can be yellow, brown or black.When oxidization time more than or equal to 0.5 hour during less than 1 hour, surface color is yellow; When oxidization time more than or equal to 1 hour during less than 1.5 hours, surface color is a brown; When oxidization time during more than or equal to 1.5 hours, surface color is a black.
Produce discharge spark at aluminium or its alloy surface in the oxidising process of the present invention.
The invention has the beneficial effects as follows: the colored oxide film thickness of generation can reach 20～200 microns, and oxide film is at aluminium and aluminum alloy surface growth in situ, and surperficial even compact has high wear resistance and solidity to corrosion.This technology has that technology is simple, cost is low, free of contamination characteristics.
Embodiment
Embodiment 1
Directly place the aqueous solution that contains sodium silicate silicate 3 grams per liters, naoh concentration 1 grams per liter, potassium permanganate concentration 2 grams per liters, Sodium orthomolybdate concentration 0.9 grams per liter, Sodium Silicofluoride concentration 3 grams per liters, concentration of sodium tungstate 2 grams per liters to carry out oxidation fine aluminium.Oxidation current density be 0.1 the peace/centimetre
2, 40 ℃ of temperature, oxidization time is 0.5 hour, can generate the oxide yellow film on the fine aluminium surface.
Embodiment 2
Directly place the aqueous solution that contains sodium silicate silicate 3 grams per liters, naoh concentration 1 grams per liter, potassium permanganate concentration 2 grams per liters, Sodium orthomolybdate concentration 0.9 grams per liter, Sodium Silicofluoride concentration 3 grams per liters, concentration of sodium tungstate 2 grams per liters to carry out oxidation fine aluminium.Oxidation current density be 0.1 the peace/centimetre
2, 40 ℃ of temperature, oxidization time is 1 hour, can generate the brown oxide film on the fine aluminium surface.
Embodiment 3
Directly place the aqueous solution that contains sodium silicate silicate 3 grams per liters, naoh concentration 1 grams per liter, potassium permanganate concentration 2 grams per liters, Sodium orthomolybdate concentration 0.9 grams per liter, Sodium Silicofluoride concentration 3 grams per liters, concentration of sodium tungstate 2 grams per liters to carry out oxidation fine aluminium.Oxidation current density be 0.1 the peace/centimetre
2, 40 ℃ of temperature, oxidization time is 1.5 hours, can generate black oxide film on the fine aluminium surface.
Embodiment 4
Directly place the aqueous solution that contains sodium silicate silicate 6 grams per liters, naoh concentration 2 grams per liters, potassium permanganate concentration 4 grams per liters, Sodium orthomolybdate concentration 3 grams per liters, Sodium Silicofluoride concentration 1 grams per liter, concentration of sodium tungstate 3 grams per liters to carry out oxidation aluminium alloy, oxidation current density be 0.4 the peace/centimetre
2, 40 ℃ of temperature, oxidization time is 0.5 hour, can generate the deep yellow oxide film in aluminum alloy surface.
Embodiment 5
Directly place the aqueous solution that contains sodium silicate silicate 6 grams per liters, naoh concentration 2 grams per liters, potassium permanganate concentration 4 grams per liters, Sodium orthomolybdate concentration 3 grams per liters, Sodium Silicofluoride concentration 1 grams per liter, concentration of sodium tungstate 3 grams per liters to carry out oxidation aluminium alloy, oxidation current density be 0.4 the peace/centimetre
2, 40 ℃ of temperature, oxidization time is 1 hour, can generate the Vandyke brown oxide film in aluminum alloy surface.
Embodiment 6
Directly place the aqueous solution that contains sodium silicate silicate 6 grams per liters, naoh concentration 2 grams per liters, potassium permanganate concentration 4 grams per liters, Sodium orthomolybdate concentration 3 grams per liters, Sodium Silicofluoride concentration 1 grams per liter, concentration of sodium tungstate 3 grams per liters to carry out oxidation aluminium alloy, oxidation current density be 0.4 the peace/centimetre
2, 40 ℃ of temperature, oxidization time is 1.5 hours, can generate black oxide film in aluminum alloy surface.
Claims (2)
1, a kind of method at aluminium and aluminum alloy surface one step generation colored oxide film, it is characterized in that: its technical process is:
A. aluminum or aluminum alloy is directly placed the electrolytic solution that contains membrane-forming agent and additive, described membrane-forming agent consists of water glass 2～10 grams per liters, sodium hydroxide 0.5～3 grams per liter, Sodium orthomolybdate 0.2～4 grams per liter and Sodium Silicofluoride 0.1～9 grams per liter; Additive is sodium wolframate 0.2～10 grams per liter and potassium permanganate 0.5～4 grams per liter;
B. the aluminum or aluminum alloy workpiece is connected to the positive pole of power supply, and as anode, stainless steel vessel is received on the negative pole of power supply simultaneously as electrolyzer and negative electrode; Adopt the oxidation power supply to carry out oxidation, described oxidation power supply is a kind of pulse power of non-sinusoidal wave, and its forward output crest voltage is 220～1000 volts, and negative sense output crest voltage is 0～100 volt, and its output waveform is an oblique triangle;
D. adopt the continuous current oxidation, oxidation current density be 0.08～2 the peace/centimetre
2, the system that is cooled with circulating water is controlled at electrolyte temperature in 10～50 ℃ of scopes, and oxidization time is 0.5～3 hour, and oxidation finishes after washing, oven dry, promptly generates the oxide film of yellow, brown or black in aluminium and aluminum alloy surface.
2. one step of aluminium according to claim 1 and alloy surface thereof generates the method for colored oxide film, it is characterized in that: when oxidization time more than or equal to 0.5 hour during less than 1 hour, surface color be a yellow; When oxidization time more than or equal to 1 hour during less than 1.5 hours, surface color is a brown; When oxidization time during more than or equal to 1.5 hours, surface color is a black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100126753A CN100562609C (en) | 2006-05-01 | 2006-05-01 | Method at aluminium and aluminum alloy surface one step generation colored oxide film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100126753A CN100562609C (en) | 2006-05-01 | 2006-05-01 | Method at aluminium and aluminum alloy surface one step generation colored oxide film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1873059A CN1873059A (en) | 2006-12-06 |
| CN100562609C true CN100562609C (en) | 2009-11-25 |
Family
ID=37483652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100126753A Expired - Fee Related CN100562609C (en) | 2006-05-01 | 2006-05-01 | Method at aluminium and aluminum alloy surface one step generation colored oxide film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100562609C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732933A (en) * | 2012-04-01 | 2012-10-17 | 华南理工大学 | Aluminum material anodization electrolytic coloring method for achieving multiple colors in one tank |
| CN105525325A (en) * | 2016-01-12 | 2016-04-27 | 北京石油化工学院 | Surface treatment method for metal alloy |
| CN105734639B (en) * | 2016-03-25 | 2018-01-12 | 北京石油化工学院 | A kind of micro-arc oxidation electrolyte and the method for preparing golden yellow ceramic layer in matrix surface |
| CN107313097A (en) * | 2016-04-26 | 2017-11-03 | 昆山汉鼎精密金属有限公司 | Die-cast aluminum alloy workpiece method for coloring surface and products thereof |
| CN107435159A (en) * | 2016-05-02 | 2017-12-05 | 纳米及先进材料研发院有限公司 | Use the alloy surface colors countenance of micro-arc oxidation process |
| CN110129857A (en) * | 2019-06-13 | 2019-08-16 | 北京石油化工学院 | A method of crocus oxidation film is prepared in 7A04 aluminum alloy surface |
| CN110257880B (en) * | 2019-07-22 | 2023-03-28 | 上海交通大学 | Preparation method for in-situ growth of yellow corrosion-resistant ceramic membrane on surface of aluminum-based composite material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181426A (en) * | 1996-11-05 | 1998-05-13 | 谢根旺 | Electrolytic chromophoric method of aluminium and aluminium alloy |
-
2006
- 2006-05-01 CN CNB2006100126753A patent/CN100562609C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1181426A (en) * | 1996-11-05 | 1998-05-13 | 谢根旺 | Electrolytic chromophoric method of aluminium and aluminium alloy |
Non-Patent Citations (6)
| Title |
|---|
| 建筑铝型材的阳极氧化和电解着色. 暨调和，曾凌三，张国芝，139，湖南和学技术出版社. 1994 |
| 建筑铝型材的阳极氧化和电解着色. 暨调和，曾凌三，张国芝，139，湖南和学技术出版社. 1994 * |
| 铝及铝合金阳极氧化膜着色技术研究进展. 王艳芝.电镀与精饰，第23卷第3期. 2001 |
| 铝及铝合金阳极氧化膜着色技术研究进展. 王艳芝.电镀与精饰，第23卷第3期. 2001 * |
| 铝阳极氧化膜的显微结构及其着色 I着色阳极氧化膜的结构及浸渍和发色电解着色. 周谟银.电镀与环保·，第24卷第6期. 2004 |
| 铝阳极氧化膜的显微结构及其着色 I着色阳极氧化膜的结构及浸渍和发色电解着色. 周谟银.电镀与环保·，第24卷第6期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1873059A (en) | 2006-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100562609C (en) | Method at aluminium and aluminum alloy surface one step generation colored oxide film | |
| CN102242364B (en) | Preparation method of ceramic film through chemical conversion and micro-arc oxidation of aluminum and aluminum alloy | |
| CN1844483B (en) | Process for anode oxidation coloration of titanium and titanium alloy surface | |
| CN104152969B (en) | A kind of aluminium alloy alternating current electrolysis deposition silver-bearing copper color method | |
| CN101423967B (en) | Surface treating method of aluminum alloy material | |
| CN100420775C (en) | Microarc oxidation process method for surface of steel and ion | |
| CN1970836A (en) | Environment-friendly surface treatment method for aluminium profile before spray coating | |
| CN103255453A (en) | Method for plating copper on stainless steel | |
| CN102115902A (en) | Surface anodization coloring treatment method for titanium and titanium alloy | |
| CN105274519A (en) | Stainless steel surface treatment method and stainless steel watch shell | |
| CN105483791A (en) | Surface machining method of industrial aluminum alloy sectional material | |
| CN103320833A (en) | Anode oxidation dyeing method for metal work-piece | |
| CN102433578A (en) | Agent for treatment before aluminum alloy secondary anode oxidation screen printing and aluminum alloy secondary anode oxidation technology | |
| CN104694993A (en) | Process for preparing high-light-absorption-rate black ceramic film layer through micro-arc oxidation of surface of magnesium alloy | |
| CN101173367B (en) | Stainless steel galvano-chemistry bepainting technique | |
| CN110195249A (en) | A kind of anodic oxidation preparation method of antibacterial, colored aluminum or aluminum alloy | |
| JP2017025384A (en) | Colored aluminum molded body and method for producing the same | |
| CN102828218A (en) | Electrolyte used for magnesium alloy anode oxidation treatment and treatment method | |
| CN101397688A (en) | Surface treating method of zinc alloy products | |
| CN103469280B (en) | Magnesium alloy differential arc oxidation electrolyte and utilize the technique of this electrolyte to the processing of Mg alloy surface black ceramic | |
| CN103590085B (en) | A kind of surface treatment method of bonding wire production aluminum steel axle | |
| CN103114320A (en) | Colouring solution used for stainless steel electrochemical colouring and stainless steel electrochemical colouring method | |
| CN103866372A (en) | Electrochemical coloring solution for stainless steel and coloring method | |
| CN108716016B (en) | A kind of surface treatment method of automobile parts | |
| CN101698955A (en) | Stainless steel, titanium and titanium alloy electromechanical blackening method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: QINHUANGDAO DAIKAMEI ALUMINUM WHEEL CO., LTD. Assignor: Yanshan University Contract record no.: 2011990001057 Denomination of invention: One-step method for making colour oxide film on surface of aluminium and aluminum alloy Granted publication date: 20091125 License type: Exclusive License Open date: 20061206 Record date: 20111124 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091125 Termination date: 20120501 |