CN101831649A - Aluminum alloy coloring method - Google Patents
Aluminum alloy coloring method Download PDFInfo
- Publication number
- CN101831649A CN101831649A CN200910300784A CN200910300784A CN101831649A CN 101831649 A CN101831649 A CN 101831649A CN 200910300784 A CN200910300784 A CN 200910300784A CN 200910300784 A CN200910300784 A CN 200910300784A CN 101831649 A CN101831649 A CN 101831649A
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- CN
- China
- Prior art keywords
- aluminum alloy
- coloring method
- nitric acid
- washing
- painted
- 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.)
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004040 coloring Methods 0.000 title claims abstract description 26
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims abstract description 33
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 16
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 2
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 abstract 1
- 230000003628 erosive effect Effects 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229940069428 antacid Drugs 0.000 description 1
- 239000003159 antacid agent Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 235000012976 tarts Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses an aluminum alloy coloring method. The method is characterized by comprising the following steps: washing and degreasing an aluminum alloy part to be colored, and then washing with water after eroding in nitric acid of which the consistence is 30-60% for 1-2 minutes; putting the aluminum alloy part in a mixed solution of potassium permanganate, nitric acid and cupric nitrate to carry out coloring, washing with water to remove the residual solution on the surface after coloring, and then drying. The method is not limited by the electrolytic cell any more, facilitates the technical operation and the site selection, and is applicable to parts which can not be colored in the electrolytic cell as a result of the shape and the dimension. Compared with the conventional method, the method greatly reduces the required energy, and the reaction solution can be recycled, thereby being more environment-friendly. The invention has the advantages of low energy consumption, low pollution, environmental friendliness, convenient operation, good corrosion resistance of products, low cost and the like.
Description
Technical field
The present invention relates to a kind of aluminum alloy coloring method, the electrolytic colorize method of the non-anodic oxidation of particularly a kind of aluminium alloy.
Background technology
Existing aluminium alloy anode oxide electrolytic colouring technology mainly was divided into for two steps: the first step aluminium carries out conventional anodic oxidation in sulphuric acid soln; Porousness oxide film electrolytic coloring in the coloring liquid of metal-salt after the second step anodic oxidation.Shortcoming is to adopt the alternating-current of industrial frequency, needs to consume a large amount of electric energy.Simultaneously because the electrolyzer bulky, exist for miniature parts wayward, the problem of clamping difficulty, thus influence its tinctorial quality, even can't be painted, also make the application of aluminium alloy that certain limitation is arranged.
Summary of the invention
The objective of the invention is to: provide a kind of potassium permanganate tart strong oxidizing property of utilizing to carry out painted aluminum alloy coloring method, simplify coloring process, reduce power consumption, be fit to various parts.
The present invention constitutes like this: will aluminum alloy part to be colored cleaning, oil removal treatment, is that acid attack was washed after 1～2 minute in 30～60% the nitric acid in concentration then; Then aluminum alloy part is put into potassium permanganate, nitric acid, cupric nitrate mixing solutions, carried out paintedly, painted after washing is removed surperficial residual solution after drying.
Above-mentioned aluminum alloy coloring method, the proportioning of described mixing solutions is: in per 1 liter of solution, potassium permanganate 9-11g, nitric acid 3-6ml, cupric nitrate 23-27g, all the other are water.
Above-mentioned aluminum alloy coloring method, the proportioning of described mixing solutions is: in per 1 liter of solution, potassium permanganate 10g, nitric acid 4ml, cupric nitrate 25g, all the other are water.
Above-mentioned aluminum alloy coloring method, painted mixing solutions temperature is 10～80 degrees centigrade.
Above-mentioned aluminum alloy coloring method, painted mixing solutions temperature is 60～70 degrees centigrade.
Above-mentioned aluminum alloy coloring method, the painted time is 0.5～12 hour.
Above-mentioned aluminum alloy coloring method, the painted time is 0.5～2 hour.
Above-mentioned aluminum alloy coloring method, described cleaning, oil removal treatment are washed then for aluminum alloy part is put into the solution that temperature is sodium hydroxide 15～20g/L of 60～80 degrees centigrade.
Method of the present invention has not had the constraint of electrolyzer, and the operation of technology and ground point selection become more easy, can be applicable to the successfully part of painted geomery of electrolyzer.Quantity part institute energy requirement simultaneous interpretation system methods such as production are compared greatly and to be reduced, and can the recycle reaction soln, and the electrolyzer electrolytic reaction then has waste water and dregs and produces, and there is not the problem of residue in both the present invention's environmental protection more of comparing.
Through applicant's test, the product that obtains under this technology normal temperature is comparatively even through observing the oxide film quality, is applicable on some ornamental parts.Through after the strong acid corrosion, the oxide film of product can guarantee not to be corroded more than 30 minutes and fade, its capacity antacid even surpassed aluminum alloy part itself.And in strength test, do not have a negative impact for aluminum alloy part, even increase through comparing technology of the present invention.Therefore compare with prior art, the present invention has less energy-consumption, the low pollution, environmental protection, simple operation, favorable product corrosion resistance, advantage such as with low cost.
Embodiment
Embodiments of the invention 1: with aluminum alloy part to be colored clean, oil removal treatment, be about to aluminum alloy part and put into solution and the stirring that temperature is sodium hydroxide 15～20g/L of 60～80 degrees centigrade, till the greasy dirt Ex-all on surface, wash then.It is that acid attack is after 1～2 minute in 30～60% the nitric acid that aluminum alloy part is placed on concentration, and washing is also stirred; Then aluminum alloy part is put into potassium permanganate, nitric acid, cupric nitrate mixing solutions, carried out paintedly, the proportioning of mixing solutions is: in per 1 liter of solution, contain potassium permanganate 9-11g, nitric acid 3-6ml, cupric nitrate 23-27g, all the other are water.Painted after washing is removed surperficial residual solution after drying and is got final product.The mixing solutions temperature is 10～80 degrees centigrade, and through applicant's test, under the low normal temperature of temperature (10～25 degrees centigrade) state, the painted time is long, needs 10～12 hours, and the product oxide film quality that obtains is the most even, is applicable on some ornamental parts.Under temperature height (60～80 degrees centigrade) state, painted time is short, hour can finish half an hour to 1, has shortened the production time, can be used on the various small-sized aluminium alloy rivet class parts.
Embodiments of the invention 2: with aluminum alloy part to be colored clean, oil removal treatment, be about to aluminum alloy part put into temperature be 70 degrees centigrade sodium hydroxide 18g/L solution and stir, till the greasy dirt Ex-all on surface, wash then.It is that acid attack is after 1.5 minutes in 50% the nitric acid that aluminum alloy part is placed on concentration, and washing is also stirred; Then aluminum alloy part is put into potassium permanganate, nitric acid, cupric nitrate mixing solutions, carried out paintedly, the proportioning of mixing solutions is: in per 1 liter of solution, and potassium permanganate 10g, nitric acid 4ml, cupric nitrate 25g, all the other are water.Painted after washing is removed surperficial residual solution after drying and is got final product.The mixing solutions temperature is 60～70 degrees centigrade, and the painted time is short, can finish in 30 minutes to 2 hours, and the oxide film quality is comparatively even, is suitable for industrialized production.
Claims (8)
1. aluminum alloy coloring method is characterized in that: with aluminum alloy part to be colored clean, oil removal treatment, be acid attack after 1～2 minute in 30～60% the nitric acid in concentration then, washing; Then aluminum alloy part is put into potassium permanganate, nitric acid, cupric nitrate mixing solutions, carried out paintedly, painted after washing is removed surperficial residual solution after drying.
2. aluminum alloy coloring method according to claim 1 is characterized in that: the proportioning of described mixing solutions is: in per 1 liter of solution, contain potassium permanganate 9-11g, nitric acid 3-6ml, cupric nitrate 23-27g, all the other are water
3. aluminum alloy coloring method according to claim 2 is characterized in that: the proportioning of described mixing solutions is: in per 1 liter of solution, contain potassium permanganate 10g, nitric acid 4ml, cupric nitrate 25g, all the other are water.
4. aluminum alloy coloring method according to claim 1 is characterized in that: painted mixing solutions temperature is 10～80 degrees centigrade.
5. aluminum alloy coloring method according to claim 4 is characterized in that: painted mixing solutions temperature is 60～70 degrees centigrade.
6. aluminum alloy coloring method according to claim 1 is characterized in that: the painted time is 0.5～12 hour.
7. aluminum alloy coloring method according to claim 6 is characterized in that: the painted time is 0.5～2 hour.
8. according to the described aluminum alloy coloring method of the arbitrary claim of claim 1～7, it is characterized in that: described cleaning, oil removal treatment are washed then for aluminum alloy part is put into the solution that temperature is sodium hydroxide 15～20g/L of 60～80 degrees centigrade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910300784A CN101831649A (en) | 2009-03-10 | 2009-03-10 | Aluminum alloy coloring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910300784A CN101831649A (en) | 2009-03-10 | 2009-03-10 | Aluminum alloy coloring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101831649A true CN101831649A (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910300784A Pending CN101831649A (en) | 2009-03-10 | 2009-03-10 | Aluminum alloy coloring method |
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| Country | Link |
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| CN (1) | CN101831649A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480443A (en) * | 2016-12-02 | 2017-03-08 | 兰州理工大学 | A kind of processing method enabling aluminum alloy to the golden yellow passivating film of surface acquisition |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016627A (en) * | 2007-02-06 | 2007-08-15 | 重庆大学 | Method of treating magnesium alloy work-piece surface |
| CN101130864A (en) * | 2006-08-25 | 2008-02-27 | 佛山市顺德区汉达精密电子科技有限公司 | Surface treating method for magnesium alloy |
| CN101280449A (en) * | 2007-04-06 | 2008-10-08 | 北京化工大学 | Mixed acid anodic oxidation method for aluminum alloy structure bonding |
-
2009
- 2009-03-10 CN CN200910300784A patent/CN101831649A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101130864A (en) * | 2006-08-25 | 2008-02-27 | 佛山市顺德区汉达精密电子科技有限公司 | Surface treating method for magnesium alloy |
| CN101016627A (en) * | 2007-02-06 | 2007-08-15 | 重庆大学 | Method of treating magnesium alloy work-piece surface |
| CN101280449A (en) * | 2007-04-06 | 2008-10-08 | 北京化工大学 | Mixed acid anodic oxidation method for aluminum alloy structure bonding |
Non-Patent Citations (1)
| Title |
|---|
| 陈素，周元康: "汽车刮水器铝合金铆钉的非阳极氧化着色研究", 《现代机械》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480443A (en) * | 2016-12-02 | 2017-03-08 | 兰州理工大学 | A kind of processing method enabling aluminum alloy to the golden yellow passivating film of surface acquisition |
| CN106480443B (en) * | 2016-12-02 | 2018-10-12 | 兰州理工大学 | A kind of processing method for enabling aluminum alloy to surface and obtaining golden yellow passivating film |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: LIANG YONGDONG ZHOU JUNHONG CHEN SU Effective date: 20120307 Owner name: GUIZHOU UNIVERSITY Free format text: FORMER OWNER: ZHOU YUANKANG Effective date: 20120307 |
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Free format text: CORRECT: ADDRESS; FROM: 550003 GUIYANG, GUIZHOU PROVINCE TO: 550025 GUIYANG, GUIZHOU PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120307 Address after: 550025 science and Technology Department, north campus, Guizhou University, Huaxi, Guizhou, China Applicant after: Guizhou University Address before: 550003 School of mechanical engineering, Guizhou University, Guizhou, Guiyang Province, Nanming 9 Applicant before: Zhou Yuankang Co-applicant before: Liang Yongdong Co-applicant before: Zhou Junhong Co-applicant before: Chen Su |
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Application publication date: 20100915 |