CN101886284A - Aluminum and aluminum alloy chemically bronzing method - Google Patents
Aluminum and aluminum alloy chemically bronzing method Download PDFInfo
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- CN101886284A CN101886284A CN 201010223364 CN201010223364A CN101886284A CN 101886284 A CN101886284 A CN 101886284A CN 201010223364 CN201010223364 CN 201010223364 CN 201010223364 A CN201010223364 A CN 201010223364A CN 101886284 A CN101886284 A CN 101886284A
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- aluminum
- aluminium
- bronzing
- aluminum alloy
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Abstract
The invention discloses an aluminum and aluminum alloy chemically bronzing method, comprising the following steps: dissolving 28-34g/L of KMnO4, 22-28g/L of NiSO4.6H2O and 2-6ml/L of concentrated HNO3 in water; heating to 78-89 DEG C after stirring and dissolving; putting the preprocessed aluminum and aluminum alloy into colorant for 5-7min and then taking out; and putting a chemically colored aluminum sheet into boiling water for boiling for 5-10min and sealing. The method of the invention is suitable for bronzing decoration process of aluminum material surfaces, and has the characteristics of simple equipment, low cost, easy operation, good quality and convenience for batch production.
Description
Technical field
The present invention relates to materialogy and field of metal surface treatment, the method for particularly a kind of aluminium and aluminum alloy chemically bronzing.
Background technology
Aluminium and alloy anodized film method of colouring thereof mainly are divided into electrolytic chromophoric, chemical stain and three kinds of methods of electrolytic coloring.Electrolytic chromophoric is that anodic oxidation and coloring process are finished in same solution, directly forms chromatic oxide film on aluminium alloy, and therefore, the electrolytic chromophoric method also is referred to as the electrolytic coloring single stage method.Chemical coloring process is that dyestuff is attracted in the hole of rete and painted.Electrocolor process is to carry out electrolytic coloring with putting into the saline solution that contains heavy metal through anodised aluminum or aluminum alloy, also often is called the electrolytic coloring two step method.Because the coloring mechanism difference of these three kinds of methods, the sedimentary position of color bodies is also different.To the electrolytic chromophoric method, different because of electrolytic solution and aluminium, color bodies is in porous layer integral body, or the colloidal particle of color bodies is distributed in the porous layer integral body; To chemical coloring process, color bodies is deposited on oxide film hole top; During electrolytic coloring, the metal color bodies is deposited on the hole bottom of porous layer.
Aluminium is amphiprotic substance, both has been dissolved in alkali and also has been dissolved in acid.After the pre-treatments such as aluminium and aluminium alloy process degreasing degreasing, acid etching, alkaline etching, chemical oxidation, can form the thick anode oxide film of one deck 1-3nm on the surface, aluminum anodized film has porousness and chemically reactive, is easy to dye adsorption top at the rete hole and painted.Promptly for chemical coloring process, color bodies is the top that is deposited on the oxide film hole.
Summary of the invention
Purpose of the present invention provides a kind of aluminium and aluminium alloy last layer method bronzy.
The prescription of the tinting material that the present invention relates to is: KMnO
428-34g/L, NiSO
46H
2O 22-28g/L and dense HNO
32-6ml/L.
The method of aluminium that the present invention relates to and aluminium alloy bronzing is:
With KMnO
428-34g/L, NiSO
46H
2O 22-28g/L and dense HNO
32-6ml/L is soluble in water, after the stirring and dissolving, is warming up to 78-89 ℃, takes out after aluminium that pre-treatment is good and aluminium alloy place tinting material 5-7min, the aluminium flake after the chemical stain is put into ebullient water boil 5～10min and seal.
The present invention is applicable to that the aluminium material surface bronzing decorates processing, the characteristics of have that equipment is simple, cost is low, easy operation, quality are good, being convenient to produce in batches.
Embodiment
Embodiment:
Degreasing degreasing: adopting the alkali electroless method of deoiling, mainly is the greasy dirt of removing aluminium material surface, its surface is corroded equably, to improve the inhomogeneous situation of aluminium material surface.The composition of solution and operational condition are: NaOH5g/L; Na
2CO
320/L; Na
3PO
45g/L; Washing powder 1g/L; Spend 65 ℃; Between 2min.
Acid etching: aluminium is amphiprotic substance, both has been dissolved in alkali and also has been dissolved in acid.The composition of pickling solution and operational condition are: 95%H
2SO
420ml/L; 65%HMO
310ml/L; 35 ℃ of temperature; Time 30s.
Alkaline etching: alkaline cleansing agent can dissolve the various fouls of aluminium material surface or scatter, and most of industrial cleaners are the special-purpose chemical productss that add be combined intos such as intercalating agent, stopper with basic basic cpd (as trisodium orthophosphate, yellow soda ash etc.).For reducing the trouble that sedimentary aluminium hydroxide throw out brings in the corrosion process, we adopt the solution of Citrate trianion as intercalating agent.NaOH300g/L; Ammonium citrate 10g/L; 50 ℃ of temperature; Time 1min.
Chemical oxidation: technology mainly is to carry out being added with in the basic solution of suitable inhibitor.Solution composition and operational condition are: Na
2CO
350g/L; Na
2CrO
415g/L; NaOH 35g/L; 65 ℃ of temperature; Time 8min.
Chemical stain: will put into chemical pigmenting liquid, processing condition after the washing of the aluminium flake behind the chemical oxidation: KMnO
428g/L, NiSO
46H
2O 28g/L, HNO
32ml/L 78 ℃ of colour temperatures, painted time 5min.
Sealing: ebullient distilled water is put in the test piece after the chemical stain boiled 8min.
Dry: the test piece after the sealing is dried on the constent temperature heater surface, 55 ℃ of temperature.
Claims (1)
1. the method for aluminium and aluminum alloy chemically bronzing is characterized in that concrete steps are:
With KMnO
428-34g/L, NiSO
46H
2O 22-28g/L and dense HNO
32-6ml/L is soluble in water, after the stirring and dissolving, is warming up to 78-89 ℃, takes out after aluminium that pre-treatment is good and aluminium alloy place tinting material 5-7min, the aluminium flake after the chemical stain is put into ebullient water boil 5～10min and seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223364 CN101886284A (en) | 2010-07-09 | 2010-07-09 | Aluminum and aluminum alloy chemically bronzing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010223364 CN101886284A (en) | 2010-07-09 | 2010-07-09 | Aluminum and aluminum alloy chemically bronzing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101886284A true CN101886284A (en) | 2010-11-17 |
Family
ID=43072368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010223364 Pending CN101886284A (en) | 2010-07-09 | 2010-07-09 | Aluminum and aluminum alloy chemically bronzing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886284A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480478A (en) * | 2016-12-12 | 2017-03-08 | 株洲冶炼集团股份有限公司 | A kind of preparation method of novel corrosion resistant zinc minus plate |
| CN115029754A (en) * | 2022-06-16 | 2022-09-09 | 江门市优博科技有限公司 | Silvery white normal-temperature high-corrosion-resistance sealing agent for aluminum and aluminum alloy anodic oxide film, and preparation method and application process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050911A (en) * | 1989-10-11 | 1991-04-24 | 湖南大学 | The aluminum or aluminum alloy anode oxide film electrolytic colouring technology |
| CN1712575A (en) * | 2005-05-12 | 2005-12-28 | 江汉大学 | Bronze coloring process of pack alloy |
-
2010
- 2010-07-09 CN CN 201010223364 patent/CN101886284A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050911A (en) * | 1989-10-11 | 1991-04-24 | 湖南大学 | The aluminum or aluminum alloy anode oxide film electrolytic colouring technology |
| CN1712575A (en) * | 2005-05-12 | 2005-12-28 | 江汉大学 | Bronze coloring process of pack alloy |
Non-Patent Citations (1)
| Title |
|---|
| 《桂林工学院学报》 20030430 李凝,江雄知,朱华平 铝及铝合金化学着黄红色探讨 188-190 1 第23卷, 第2期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480478A (en) * | 2016-12-12 | 2017-03-08 | 株洲冶炼集团股份有限公司 | A kind of preparation method of novel corrosion resistant zinc minus plate |
| CN106480478B (en) * | 2016-12-12 | 2018-08-24 | 株洲冶炼集团股份有限公司 | A kind of preparation method of novel corrosion resistant zinc cathode plate |
| CN115029754A (en) * | 2022-06-16 | 2022-09-09 | 江门市优博科技有限公司 | Silvery white normal-temperature high-corrosion-resistance sealing agent for aluminum and aluminum alloy anodic oxide film, and preparation method and application process thereof |
| CN115029754B (en) * | 2022-06-16 | 2024-06-07 | 江门市优博科技有限公司 | Silvery white normal-temperature high-corrosion-resistance sealing agent for aluminum and aluminum alloy anodic oxide film, and preparation method and application process thereof |
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Open date: 20101117 |