CN110983413A - Aluminum alloy anodic oxidation dye pH slow release agent - Google Patents
Aluminum alloy anodic oxidation dye pH slow release agent Download PDFInfo
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- CN110983413A CN110983413A CN201911344560.8A CN201911344560A CN110983413A CN 110983413 A CN110983413 A CN 110983413A CN 201911344560 A CN201911344560 A CN 201911344560A CN 110983413 A CN110983413 A CN 110983413A
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- aluminum alloy
- sodium acetate
- aqueous solution
- dyeing
- anodic oxidation
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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
Abstract
The invention discloses an aluminum alloy anodic oxidation dye pH slow release agent, which is composed of the following raw materials: 100-120g/L ammonium sulfate, 30-40g/L sodium sulfate, 5-10mL/L sodium acetate aqueous solution, 0.5-1mL/L mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 30-40%. After the product is used, the good pH slow-release performance of the dyeing bath can be obtained, acetic acid or ammonia water is not needed for frequent pH adjustment, the dyeing bath solution can be effectively stabilized, the service life of the aluminum alloy anodic oxidation dyeing bath solution is prolonged, and the temperature property of the dyeing bath is improved; prevent the phenomena of dyeing flow marks, spots, white spots and uneven dyeing caused by frequently adjusting the pH value of the bath solution.
Description
Technical Field
The invention relates to the technical field of aluminum alloy anodic oxidation dyeing, in particular to a pH slow release agent for an aluminum alloy anodic oxidation dye.
Background
The pH value of a dyeing bath solution is seriously reduced or increased due to frequent introduction of water quality and electrolyte in the production operation process of the existing aluminum alloy anodic oxidation dyeing bath, and various manufacturers basically adjust the pH value by glacial acetic acid or ammonia water at present. However, the pH of the dyeing bath is frequently adjusted by acetic acid or ammonia water, which causes the phenomena of flow marks, spots, white spots and uneven dyeing of the aluminum alloy anodic oxidation dyeing workpiece.
Disclosure of Invention
The invention aims to provide a pH slow release agent for an aluminum alloy anodic oxidation dye, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an aluminum alloy anodic oxidation dye pH slow release agent is composed of the following raw materials: 100-120g/L ammonium sulfate, 30-40g/L sodium sulfate, 5-10mL/L sodium acetate aqueous solution, 0.5-1mL/L mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 30-40%.
As a further scheme of the invention, the fertilizer specifically comprises the following raw materials: 100g/L of ammonium sulfate, 30g/L of sodium sulfate, 5mL/L of sodium acetate aqueous solution, 0.5mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 40%.
As a further scheme of the invention, the fertilizer specifically comprises the following raw materials: 120g/L of ammonium sulfate, 40g/L of sodium sulfate, 10mL/L of sodium acetate aqueous solution, 1mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 30%.
As a further scheme of the invention, the fertilizer specifically comprises the following raw materials: 110g/L of ammonium sulfate, 35g/L of sodium sulfate, 7mL/L of sodium acetate aqueous solution, 0.8mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 35%.
In a further embodiment of the invention, the mildew inhibitor is a mixed aqueous solution of ammonium dehydrosulfate and sodium lactate, wherein the mass fraction of the ammonium dehydrosulfate is 25-30%, and the mass fraction of the sodium lactate is 11-15%.
As a further scheme of the invention, the mildew preventive adopts a nitrite water solution, wherein the mass fraction of nitrite is 23-25%.
As a further scheme of the invention, the mildew preventive adopts a sodium propionate aqueous solution, wherein the mass fraction of sodium propionate is 19-22%.
Compared with the prior art, the invention has the beneficial effects that:
1. good pH slow release performance of the dyeing bath can be obtained, acetic acid or ammonia water is not needed for frequent pH adjustment, the dyeing bath solution can be effectively stabilized, the service life of the aluminum alloy anodic oxidation dyeing bath solution is prolonged, and the temperature property of the dyeing bath is improved;
2. compared with the method without adding, the dyeing property can be greatly improved;
3. prevent the pH value from rising caused by water quality and the pH value from lowering caused by the absorption of electrolyte;
4. prevent the phenomena of dyeing flow marks, spots, white spots and uneven dyeing caused by frequently adjusting the pH value of the bath solution.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
an aluminum alloy anodic oxidation dye pH slow release agent is specifically composed of the following raw materials: 100g/L of ammonium sulfate, 30g/L of sodium sulfate, 5mL/L of sodium acetate aqueous solution, 0.5mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 40%.
The mildew preventive is a mixed aqueous solution of ammonium dehydrosulfate and sodium lactate, wherein the mass fraction of the ammonium dehydrosulfate is 30%, and the mass fraction of the sodium lactate is 15%.
The pH value of the aluminum alloy anodic oxidation dye pH slow-release agent of the embodiment is 5.2.
The specific operation and use method comprises the following steps: adding the prepared aluminum alloy anodic oxidation organic dye pH slow-release agent into an aluminum alloy anodic oxidation gray dyeing tank of a newly-built bath according to 20mL/L, measuring the pH value of the tank liquor to be 5.3 after aeration stirring for 2h, washing the anodized aluminum alloy parts, and placing the parts in the gray dyeing tank for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like are avoided, the tank liquor period is recorded as 1 day, the tank liquor is continuously used, and the experimental result is shown in table 1.
After the bath solution is recycled for 5 days, the anodized aluminum alloy parts are washed by water and placed in a grey dyeing bath for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like are avoided, the tank liquor period is recorded as 5 days, the tank liquor is continuously used, and the experimental result is shown in table 1.
After the bath solution is recycled for 10 days, the anodized aluminum alloy parts are washed by water and placed in a grey dyeing bath for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like do not exist, the tank liquor period is recorded as 10 days, the tank liquor is continuously used, and the experimental result is shown in table 1.
Example 2:
an aluminum alloy anodic oxidation dye pH slow release agent is specifically composed of the following raw materials: 120g/L of ammonium sulfate, 40g/L of sodium sulfate, 10mL/L of sodium acetate aqueous solution, 1mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 30%.
The mildew preventive is a nitrite aqueous solution, wherein the mass fraction of nitrite is 25%.
The pH value of the aluminum alloy anodic oxidation dye pH slow-release agent of the embodiment is 5.3.
The specific operation and use method comprises the following steps: adding the prepared aluminum alloy anodic oxidation organic dye pH slow-release agent into an aluminum alloy anodic oxidation gray dyeing tank of a newly-built bath according to 20mL/L, measuring the pH value of the tank liquor to be 5.4 after aeration stirring for 2h, washing the anodized aluminum alloy parts, and placing the parts in the gray dyeing tank for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like are avoided, the tank liquor period is recorded as 1 day, the tank liquor is continuously used, and the experimental result is shown in table 1.
After the bath solution is recycled for 5 days, the anodized aluminum alloy parts are washed by water and placed in a grey dyeing bath for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like are avoided, the tank liquor period is recorded as 5 days, the tank liquor is continuously used, and the experimental result is shown in table 1.
After the bath solution is recycled for 10 days, the anodized aluminum alloy parts are washed by water and placed in a grey dyeing bath for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like do not exist, the tank liquor period is recorded as 10 days, the tank liquor is continuously used, and the experimental result is shown in table 1.
Example 3:
an aluminum alloy anodic oxidation dye pH slow release agent is specifically composed of the following raw materials: 110g/L of ammonium sulfate, 35g/L of sodium sulfate, 7mL/L of sodium acetate aqueous solution, 0.8mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 35%.
Wherein the mildew preventive adopts a sodium propionate aqueous solution, wherein the mass fraction of sodium propionate is 22%.
The pH value of the aluminum alloy anodic oxidation dye pH slow-release agent of the embodiment is 5.2.
The specific operation and use method comprises the following steps: adding the prepared aluminum alloy anodic oxidation organic dye pH slow-release agent into an aluminum alloy anodic oxidation gray dyeing tank of a newly-built bath according to 20mL/L, measuring the pH value of the tank liquor to be 5.3 after aeration stirring for 2h, washing the anodized aluminum alloy parts, and placing the parts in the gray dyeing tank for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like are avoided, the tank liquor period is recorded as 1 day, the tank liquor is continuously used, and the experimental result is shown in table 1.
After the bath solution is recycled for 5 days, the anodized aluminum alloy parts are washed by water and placed in a grey dyeing bath for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like are avoided, the tank liquor period is recorded as 5 days, the tank liquor is continuously used, and the experimental result is shown in table 1.
After the bath solution is recycled for 10 days, the anodized aluminum alloy parts are washed by water and placed in a grey dyeing bath for dyeing treatment.
After hole sealing water washing and drying, the dyeing quality is checked, the defects of white exposure, spots, flow marks, uneven dyeing and the like do not exist, the tank liquor period is recorded as 10 days, the tank liquor is continuously used, and the experimental result is shown in table 1.
Table 1: experimental results after use of the products in examples 1 to 3.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The aluminum alloy anodic oxidation dye pH slow-release agent is characterized by comprising the following raw materials: 100-120g/L ammonium sulfate, 30-40g/L sodium sulfate, 5-10mL/L sodium acetate aqueous solution, 0.5-1mL/L mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 30-40%.
2. The aluminum alloy anodic oxidation dye pH slow-release agent according to claim 1, which is characterized by specifically comprising the following raw materials: 100g/L of ammonium sulfate, 30g/L of sodium sulfate, 5mL/L of sodium acetate aqueous solution, 0.5mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 40%.
3. The aluminum alloy anodic oxidation dye pH slow-release agent according to claim 1, which is characterized by specifically comprising the following raw materials: 120g/L of ammonium sulfate, 40g/L of sodium sulfate, 10mL/L of sodium acetate aqueous solution, 1mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 30%.
4. The aluminum alloy anodic oxidation dye pH slow-release agent according to claim 1, which is characterized by specifically comprising the following raw materials: 110g/L of ammonium sulfate, 35g/L of sodium sulfate, 7mL/L of sodium acetate aqueous solution, 0.8mL/L of mildew preventive and the balance of deionized water, wherein the mass fraction of sodium acetate in the sodium acetate aqueous solution is 35%.
5. The aluminum alloy anodic oxidation dye pH slow-release agent as claimed in claim 1, wherein the mildew inhibitor is a mixed aqueous solution of ammonium dehydrosulfate and sodium lactate, wherein the mass fraction of the ammonium dehydrosulfate is 25-30%, and the mass fraction of the sodium lactate is 11-15%.
6. The aluminum alloy anodic oxidation dye pH slow-release agent as claimed in claim 1, wherein the mildew inhibitor is nitrite aqueous solution, wherein the mass fraction of nitrite is 23-25%.
7. The aluminum alloy anodic oxidation dye pH slow-release agent as claimed in claim 1, wherein the mildew inhibitor is an aqueous solution of sodium propionate, wherein the mass fraction of sodium propionate is 19-22%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114369855A (en) * | 2021-12-28 | 2022-04-19 | 博罗县东明化工有限公司 | Anodic oxide film dyeing stabilizer and anodic oxide film dyeing method |
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| CN105839161A (en) * | 2016-05-10 | 2016-08-10 | 广东长盈精密技术有限公司 | Dyeing method of metal component |
| CN105908236A (en) * | 2016-05-10 | 2016-08-31 | 广东长盈精密技术有限公司 | Coloring agent and preparation method thereof |
| CN107130278A (en) * | 2017-05-22 | 2017-09-05 | 深圳市梦之坊通信产品有限公司 | The method for dyeing current mark suppressant additive and aluminum alloy anode dyeing |
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2019
- 2019-12-24 CN CN201911344560.8A patent/CN110983413A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839161A (en) * | 2016-05-10 | 2016-08-10 | 广东长盈精密技术有限公司 | Dyeing method of metal component |
| CN105908236A (en) * | 2016-05-10 | 2016-08-31 | 广东长盈精密技术有限公司 | Coloring agent and preparation method thereof |
| CN107130278A (en) * | 2017-05-22 | 2017-09-05 | 深圳市梦之坊通信产品有限公司 | The method for dyeing current mark suppressant additive and aluminum alloy anode dyeing |
Non-Patent Citations (1)
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| CN114369855A (en) * | 2021-12-28 | 2022-04-19 | 博罗县东明化工有限公司 | Anodic oxide film dyeing stabilizer and anodic oxide film dyeing method |
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