CN108950643A - A kind of alkalinity aluminium anode oxide film removing agent and its configuration method and application method - Google Patents
A kind of alkalinity aluminium anode oxide film removing agent and its configuration method and application method Download PDFInfo
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- CN108950643A CN108950643A CN201810892433.0A CN201810892433A CN108950643A CN 108950643 A CN108950643 A CN 108950643A CN 201810892433 A CN201810892433 A CN 201810892433A CN 108950643 A CN108950643 A CN 108950643A
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- oxide film
- removing agent
- anode oxide
- film removing
- aluminium anode
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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
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- Chemical Kinetics & Catalysis (AREA)
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention belongs to technical field of aluminum alloy surface treatment, and in particular to a kind of alkalinity aluminium anode oxide film removing agent and its configuration method and application method；The removing agent includes: alkaline 15~35g/L of exfoliant, 3~10g/L of corrosion inhibiter, 10~30g/L of complexing agent, 5~10g/L of surfactant, 3~20g/L of organic solvent and excess water；Stripping technique are as follows: stoste is heated to 55~80 DEG C, and workpiece impregnates 10~65s, rinses, drying.The present invention not only can thoroughly strip the aluminium anodes film of surface of workpiece, and after stripping anode film to highlight surface will not excessive corrosion, so that substrate is still kept the original gloss of metal, waste liquid low cod value can be with direct emission after stripping.
Description
Technical field
The invention belongs to technical field of aluminum alloy surface treatment, and in particular to it is a kind of alkalinity aluminium anode oxide film removing agent and
Its configuration method and application method.
Background technique
Anodizing of aluminium film has a series of superior performances, is not only the omnipotent surface protection film of one kind of aluminium, and
And the aluminium anode oxide film of coloring has exquisite decorative performance.The process oxidation film size of anodic oxidation it is bad, coloring not
Or the reasons such as sealing of hole is defective cause anode film unqualified, to need to return anode film anodic oxidation again.Existing city
Alkalinity on face moves back the removing agent of anode film, causes serious excessive corrosion to aluminium after stripping, and COD value is high, causes to discharge
Pollution.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of low cod value and aluminium will not be caused
Spend the alkaline aluminium anode oxide film removing agent of corrosion.
The second object of the present invention is to provide the preparation method of the alkaline aluminium anode oxide film removing agent.
There is provided the application methods of the alkaline aluminium anode oxide film removing agent for the third object of the present invention.
In order to solve the above technical problems, the present invention is achieved by the following scheme:
A kind of alkalinity aluminium anode oxide film removing agent, including alkaline exfoliant, corrosion inhibiter, complexing agent, surfactant, have
Solvent and water；
It is described alkalinity exfoliant be potassium carbonate, sodium hydroxide, potassium hydroxide, diethylenetriamine or monoethanolamine in extremely
Few one kind, content are 15~35g/L；
The corrosion inhibiter is at least one of sodium metasilicate, 8 oxyquinolines, LAN826, imidazoline, sodium benzoate, content
For 3~10g/L；
The complexing agent is aminotrimethylenephosphonic acid, sodium tripolyphosphate, at least one in hydroxyethylethylene diamine tri-acetic acid
Kind, content is 10~30g/L；
The surfactant is fatty alcohol polyoxyethylene ether, and content is 5~10g/L；
The organic solvent be at least one of glycerol, 2 hexylene glycol, propylene glycol, dipropylene glycol, content be 3~
20g/L；
The water is deionized water.
The preparation method of alkaline aluminium anode oxide film removing agent: it will first be measured by the alkaline aluminium anode oxide film removing agent
3/4ths water be added in container, sequentially add complexing agent, organic solvent, corrosion inhibiter, surfactant, alkalinity stripping
Agent is fallen, adds latter substance after the dissolution of former substance, is supplemented to variable with water until completely dissolved, preparation is completed,
The alkaline aluminium anode oxide film removing agent is made.The sequence that various substances are wherein added is critically important, after the dissolution of former substance
Adding latter substance is to add the third after two kinds of front substance reaction is complete；Completely directly whether reaction
Influence the quality of final removing agent.
The application method of alkaline aluminium anode oxide film removing agent: first the alkaline aluminium anode oxide film removing agent is heated to
55~80 DEG C, then workpiece is soaked in 10~65s in the acid aluminium anode oxide film removing agent, it finally takes out, rinse, remove
Ash neutralizes, rinsing, drying, completes the stripping of the alkaline aluminium anode oxide film.
Preferably, alkaline aluminium anode oxide film removing agent is heated to 55~75 DEG C, more preferable 65~75 DEG C.
Preferably, workpiece is soaked in 10~60s, more preferable 15~50s in the acid aluminium anode oxide film removing agent.
The present invention provides a kind of stable, function admirable alkaline aluminium anode oxide films to strip technology, and removing agent is not only
The aluminium anodes film of surface of workpiece can thoroughly be stripped, and after stripping anode film to highlight surface will not excessive corrosion and damage
Hurt substrate, substrate is made still to keep the original gloss of metal, the stripping time is short, and the service life is long, can effectively improve production capacity, promotes aluminium alloy table
The development of surface treatment technical field.In addition, removing agent of the invention not only can thoroughly strip the aluminium anodes film of surface of workpiece,
And waste liquid low cod value can be with direct emission.
Detailed description of the invention
Fig. 1 is that cell phone rear cover (6 be aluminium) moves back comparison before and after anode film.
Specific embodiment
The present invention is got information about to allow those skilled in the art to be more clear, below in conjunction with attached drawing, to the present invention
It is further described.
Embodiment 1
Alkaline aluminium anode oxide film removing agent contains in 1L removing agent: alkaline exfoliant 25g (wherein, potassium carbonate 15g, hydrogen
Sodium oxide molybdena 10g), corrosion inhibiter 5g (sodium metasilicate 4g, 8 oxyquinoline 1g), complexing agent 10g (wherein, aminotrimethylenephosphonic acid 6g,
Sodium tripolyphosphate 4g), fatty alcohol polyoxyethylene ether 5g, organic solvent is 2 hexylene glycol 10g.
Alkaline aluminium anode oxide film strips agent compounding method: first will be by the alkaline aluminium anode oxide film removing agent metering
3/4ths water is added in container, is sequentially added complexing agent, organic solvent, corrosion inhibiter, surfactant, alkalinity and is peeled off
Agent adds latter substance after the dissolution of former substance, is supplemented to variable with water until completely dissolved, and preparation is completed, system
Obtain the alkaline aluminium anode oxide film removing agent.
The application method of alkaline aluminium anode oxide film removing agent: first the alkaline aluminium anode oxide film removing agent is heated to
65 DEG C, then workpiece is soaked in 20s in the alkaline aluminium anode oxide film removing agent, finally taking-up, rinsing, ash disposal, neutralization, drift
It washes, dry, complete the stripping of the alkaline aluminium anode oxide film.
Embodiment 2
Alkaline aluminium anode oxide film removing agent contains in 1L removing agent: alkaline exfoliant 18g (wherein sodium hydroxide 10g,
Diethylenetriamine 3g, monoethanolamine 5g), corrosion inhibiter imidazoline 3g, complexing agent is 30g (wherein sodium tripolyphosphate 18g, ethoxy
Ethylenediamine triacetic acid 12g), fatty alcohol polyoxyethylene ether 6g, organic solvent is propylene glycol 15g.
Alkaline aluminium anode oxide film strips agent compounding method: with embodiment 1.
The application method of alkaline aluminium anode oxide film removing agent: with embodiment 1, difference is, operating temperature is 70 DEG C, work
Part is soaked in 12s in the alkaline aluminium anode oxide film removing agent.
Embodiment 3
Alkaline aluminium anode oxide film removing agent contains in 1L removing agent: alkaline exfoliant 35g (wherein potassium hydroxide 30g,
Monoethanolamine 5g), corrosion inhibiter 6g (wherein imidazoline 2g, sodium benzoate 4g), complexing agent is sodium tripolyphosphate 30g, poly alkyl alcohol
Ethylene oxide ether 5g, organic solvent are dipropylene glycol 10g.
Alkaline aluminium anode oxide film strips agent compounding method: with embodiment 1.
The application method of alkaline aluminium anode oxide film removing agent: with embodiment 1, difference is, operating temperature is 75 DEG C, work
Part is soaked in 10s in the alkaline aluminium anode oxide film removing agent.
Embodiment 4
Alkaline aluminium anode oxide film removing agent contains in 1L removing agent: alkaline exfoliant 22g (wherein potassium carbonate 7g, diethyl
Alkene triamine 5g, sodium hydroxide 10g), corrosion inhibiter 10g (wherein 8 oxyquinoline 5g, LAN8265g)；Complexing agent 17g (wherein amino
Trimethylene phosphonic 12g, hydroxyethylethylene diamine tri-acetic acid 5g), fatty alcohol polyoxyethylene ether 7g, 2 hexylene glycol 20g.
Alkaline aluminium anode oxide film strips agent compounding method: with embodiment 1.
The application method of alkaline aluminium anode oxide film removing agent: with embodiment 1, difference is, operating temperature is 70 DEG C, work
Part is soaked in 50s in the alkaline aluminium anode oxide film removing agent.
Embodiment 5
Alkaline aluminium anode oxide film removing agent contains in 1L removing agent: sodium hydroxide 20g, corrosion inhibiter 10g (wherein 8 hydroxyl
Quinoline 2g, LAN8263g, imidazoline 5g), hydroxyethylethylene diamine tri-acetic acid 12g is fatty alcohol polyoxyethylene ether 9g, organic solvent
18g (wherein glycerol 12g, 2 hexylene glycol 6g).
Alkaline aluminium anode oxide film strips agent compounding method: with embodiment 1.
The application method of alkaline aluminium anode oxide film removing agent: with embodiment 1, difference is, operating temperature is 55 DEG C, work
Part is soaked in 60s in the alkaline aluminium anode oxide film removing agent.
Embodiment 6
Alkaline aluminium anode oxide film removing agent contains in 1L removing agent: monoethanolamine 35g, sodium benzoate 5g, complexing agent
30g (wherein aminotrimethylenephosphonic acid 6g, sodium tripolyphosphate 10g, hydroxyethylethylene diamine tri-acetic acid 14g), fatty alcohol polyoxy second
Alkene ether 10g, organic solvent 14g, (wherein glycerol 4g, 2 hexylene glycol 5g, propylene glycol 5g).
Alkaline aluminium anode oxide film strips agent compounding method: with embodiment 1.
The application method of alkaline aluminium anode oxide film removing agent: with embodiment 1, difference is, operating temperature is 72 DEG C, work
Part is soaked in 55s in the alkaline aluminium anode oxide film removing agent.
Above-described embodiment, only presently preferred embodiments of the present invention, is not intended to limit the invention practical range, therefore all with this
The equivalent change or modification that feature described in invention claim and principle are done should all be included in scope of the invention as claimed
Within.
As shown in Figure 1, the present invention can thoroughly strip the aluminium anodes film of surface of workpiece, and workpiece surface is fine and smooth after processing
Uniformly.(by for reason, the workpieces surface condition that Fig. 1 is shown should illustrate be several processing of embodiment result)
Alkaline anodic Stripping agent waste liquid COD examining report
Waste liquid after the alkaline poplar dustpan removing agent of embodiment 1-6 to be handled to workpiece respectively detects, and detection target is to change
It learns oxygen demand (COD), examination criteria method is total according to " water and effluent monitoring analysis method " (fourth edition addendum) national environmental protection
Office 2002, " the measurement rapid-digestion spectrophotometry of water quality oxygen demand " State Ministry of Environmental Protection HJ//T399-2007, detection knot
Fruit such as table 1.
Table 1 is alkaline anodic Stripping agent waste liquid COD testing result
As shown in Table 1, the waste liquid low cod value for stripping the aluminium anodes film on surface, meets environmental requirement, can be with direct emission.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of alkalinity aluminium anode oxide film removing agent, which is characterized in that including alkaline exfoliant, corrosion inhibiter, complexing agent, surface
Activating agent, organic solvent and water；
The alkalinity exfoliant is at least one in potassium carbonate, sodium hydroxide, potassium hydroxide, diethylenetriamine or monoethanolamine
Kind, content is 15~35g/L；
The corrosion inhibiter be at least one of sodium metasilicate, 8 oxyquinolines, LAN826, imidazoline, sodium benzoate, content be 3~
10g/L；
The complexing agent is at least one of aminotrimethylenephosphonic acid, sodium tripolyphosphate, hydroxyethylethylene diamine tri-acetic acid, is contained
Amount is 10~30g/L；
The surfactant is fatty alcohol polyoxyethylene ether, and content is 5~10g/L；
The organic solvent is glycerol, 2 hexylene glycol, propylene glycol, at least one of dipropylene glycol, and content is 3~20g/L；
The water is deionized water.
2. the preparation method of alkalinity aluminium anode oxide film removing agent as described in claim 1, which is characterized in that configuration step is such as
Under:
It will be first added in container by 3/4ths water of the alkaline aluminium anode oxide film removing agent metering, sequentially add network
Mixture, organic solvent, corrosion inhibiter, surfactant, acid exfoliant, add latter substance after the dissolution of former substance,
It is supplemented to variable with water until completely dissolved, preparation is completed, and the alkaline aluminium anode oxide film removing agent is made.
3. the application method of alkalinity aluminium anode oxide film removing agent as described in claim 1, which is characterized in that application method
Are as follows: the alkaline aluminium anode oxide film removing agent is first heated to 55~80 DEG C, then workpiece is soaked in the alkaline aluminium anodes
The alkaline aluminium anodes oxygen is completed in 10~65s in oxidation film removing agent, finally taking-up, rinsing, ash disposal, neutralization, rinsing, drying
Change the stripping of film.
4. the application method of alkalinity aluminium anode oxide film removing agent as claimed in claim 3, which is characterized in that the alkalinity aluminium
Anode oxide film removing agent is heated to 55~75 DEG C.
5. the application method of alkalinity aluminium anode oxide film removing agent as claimed in claim 4, which is characterized in that the alkalinity aluminium
Anode oxide film removing agent is heated to 65~75 DEG C.
6. the application method of alkalinity aluminium anode oxide film removing agent as claimed in claim 3, which is characterized in that the workpiece leaching
Steep 10~60s in the alkaline aluminium anode oxide film removing agent.
7. the application method of alkalinity aluminium anode oxide film removing agent as claimed in claim 6, which is characterized in that the workpiece leaching
Steep 15~50s in the alkaline aluminium anode oxide film removing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810892433.0A CN108950643B (en) | 2018-08-07 | 2018-08-07 | Alkaline aluminum anodic oxide film remover and preparation method and use method thereof |
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| CN201810892433.0A CN108950643B (en) | 2018-08-07 | 2018-08-07 | Alkaline aluminum anodic oxide film remover and preparation method and use method thereof |
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| CN108950643B CN108950643B (en) | 2020-09-22 |
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Cited By (4)
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| CN109504977A (en) * | 2018-12-28 | 2019-03-22 | 太仓市何氏电路板有限公司 | Film liquid medicine is moved back in a kind of protection of LED aluminium face |
| CN113880063A (en) * | 2021-09-28 | 2022-01-04 | 广东光华科技股份有限公司 | Aluminum removing method for ferrophosphorus slag after lithium extraction of waste lithium iron phosphate and preparation method of battery-grade ferric phosphate |
| CN114000155A (en) * | 2021-09-26 | 2022-02-01 | 西北大学 | Universal aluminum and aluminum alloy environment-friendly dedusting agent |
| CN116043235A (en) * | 2022-09-02 | 2023-05-02 | 浙江瑞特良微电子材料有限公司 | Environment-friendly film stripping agent and application thereof in film stripping process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504977A (en) * | 2018-12-28 | 2019-03-22 | 太仓市何氏电路板有限公司 | Film liquid medicine is moved back in a kind of protection of LED aluminium face |
| CN114000155A (en) * | 2021-09-26 | 2022-02-01 | 西北大学 | Universal aluminum and aluminum alloy environment-friendly dedusting agent |
| CN114000155B (en) * | 2021-09-26 | 2023-09-12 | 西北大学 | General aluminum and alloy environment-friendly ash remover thereof |
| CN113880063A (en) * | 2021-09-28 | 2022-01-04 | 广东光华科技股份有限公司 | Aluminum removing method for ferrophosphorus slag after lithium extraction of waste lithium iron phosphate and preparation method of battery-grade ferric phosphate |
| CN116043235A (en) * | 2022-09-02 | 2023-05-02 | 浙江瑞特良微电子材料有限公司 | Environment-friendly film stripping agent and application thereof in film stripping process |
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| CN108950643B (en) | 2020-09-22 |
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