CN110029389A - Remove the solution of aluminium alloy anode oxide film sealing of hole ash - Google Patents
Remove the solution of aluminium alloy anode oxide film sealing of hole ash Download PDFInfo
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- CN110029389A CN110029389A CN201910310050.2A CN201910310050A CN110029389A CN 110029389 A CN110029389 A CN 110029389A CN 201910310050 A CN201910310050 A CN 201910310050A CN 110029389 A CN110029389 A CN 110029389A
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- sealing
- hole
- solution
- oxide film
- aluminium alloy
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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
- C25D11/246—Chemical after-treatment for sealing layers
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
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Abstract
The present invention provides a kind of solution for removing aluminium alloy anode oxide film sealing of hole ash, each components including following content: 1.5~3g/L of hydramine, 0.3~1.5g/L of organic acid, 0.2~1g/L of complexing agent, 0.5~2ml/L of antisludging agent, 10~50mg/L of anionic surfactant, surplus are deionized water.The solution has the advantages that 1, oxide film dissolving surface is gone to be formed by sealing of hole ash in sealing of hole process, avoids the formation of dirty surfaces；2, there is facilitation to the sealing of hole of oxidation film, so that the sealing of hole of oxidation film is more thorough；3, while removing sealing of hole ash, to oxidation film without destruction；4, the oxidation film after sealing of hole, which only needs to impregnate several minutes, can remove sealing of hole ash, and compared with aoxidizing method of the film surface to remove sealing of hole ash by wiping, production efficiency is can be improved in the present invention；5, solution of the invention is environmental protection formulae, and wastewater treatment is simple.
Description
Technical field
The present invention relates to a kind of solution for removing aluminium alloy anode oxide film sealing of hole ash, belong to aluminium alloy anode oxide technology
Field.
Background technique
Aluminium alloy anode oxide is a kind of technology common in aluminum alloy surface processing, is obtained in aluminum alloy surface high hard
Degree, oxidation film beautiful in colour.But in order to further increase the performance of oxidation film, especially improve the stain resistance energy of oxidation film
Power needs to carry out oxidation film sealing pores, is easy to form one layer of sealing of hole ash in oxidation film surface during sealing of hole, molten in sealing of hole
Liquid is more serious close to sealing of hole ash when aging.
For aoxidizing the sealing of hole ash of film surface, the method for diluted acid immersion and wiping is commonly used to remove.Although diluted acid infusion method
It is low in cost, but there is corrosivity to oxidation film, the corrosion resistance of oxidation film is reduced, the tone of dyeing oxidation film surface is caused
Variation.Sealing of hole ash then heavy workload is removed using the method for wiping, especially there is the more unsuitable use of the small workpiece of complex surface
This method.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of removal aluminium alloy anode oxide film sealing of hole ashes
Solution.It can remove oxidation film surface to be formed by sealing of hole ash in sealing of hole process and promote oxidation film sealing of hole, and the oxidation after sealing of hole
Film, which only needs to impregnate several minutes, can remove sealing of hole ash, significantly improve production efficiency.
The purpose of the present invention is what is be achieved through the following technical solutions:
The present invention provides a kind of solution for removing aluminium alloy anode oxide film sealing of hole ash, each group including following content
Point: 1.5~3g/L of hydramine, 0.3~1.5g/L of organic acid, 0.2~1g/L of complexing agent, 0.5~2ml/L of antisludging agent, anion table
Face 10~50mg/L of activating agent, surplus are deionized water.
Preferably, the hydramine is selected from least one of triethanolamine or diethanol amine.
Preferably, the organic acid provides acidic environment, selected from one of citric acid, acetic acid, glycolic, tartaric acid or
It is a variety of.
Preferably, the complexing agent is selected from one or both of EDTA-2Na and NTA.
Preferably, the antisludging agent is selected from one of PBTCA, ATMP, EDTMPS or a variety of.
Preferably, the anionic surfactant is selected from disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, dodecyl benzene sulfonic acid
One of sodium, lauryl sodium sulfate.
Preferably, it is 4.0~5.0 that the solution, which is additionally added organic acid soln or weak aqua ammonia adjusting pH value,.
Preferably, the solution of the removal aluminium alloy anode oxide film sealing of hole ash includes each component of following content: three second
2~2.5g/L of hydramine, citric acid 1.2~1.5g/L, EDTA-2Na 1~1.2ml/L of 0.3~0.5g/L, PBTCA, dodecane
Base 30~50mg/L of benzene sulfonic acid sodium salt, surplus are deionized water.
The triethanolamine is used as a kind of surfactant, complexing agent in solution of the invention, to the sealing of hole of oxidation film
With facilitation；
The citric acid has both in solution of the invention as a kind of organic acid and provides the work of acidic environment and complexing agent
With, make sealing of hole ash dissolve；
The EDTA-2Na is used as a kind of efficient complexing agent in solution of the invention, promotes the dissolution of sealing of hole ash；
The PBTCA (2- phosphonic acid base -1,2,4- butane tricarboxylate) in solution of the invention as a kind of antisludging agent and
Dispersing agent inhibits the formation of sealing of hole ash；
The neopelex is used as a kind of anionic surfactant in solution of the invention, improves solution
Dispersibility, accelerate removal sealing of hole ash.
Preferably, it is 4.0~5.0 that the solution, which is additionally added citric acid solution or weak aqua ammonia adjusting pH value,.
The present invention also provides a kind of methods for removing aluminium alloy anode oxide film sealing of hole ash according to solution above-mentioned, including
Following steps:
Al alloy parts after sealing pores are immersed in the solution and are impregnated, then cleans, dry.
Preferably, the temperature of the immersion is 80~90 DEG C, and soaking time is 2~10min.3~8min is more preferably impregnated,
Most preferably impregnate 4~6min.
Preferably, the step of cleaning specifically: using EDI processing water cleaning at least 3.
Preferably, the drying temperature is 80~85 DEG C.
The processed anode oxide film of the present invention, which can estimate, inspects its presentation quality, has serious sealing of hole using surface
The workpiece of ash is experimental subjects, and the sealing of hole ash of workpiece surface can be fully erased after immersion, and does not influence dyeing oxidation film surface
Tone.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, it goes to oxide film dissolving surface to be formed by sealing of hole ash in sealing of hole process, avoids the formation of dirty surfaces；
2, there is facilitation to the sealing of hole of oxidation film, so that the sealing of hole of oxidation film is more thorough；
3, while removing sealing of hole ash, to oxidation film without destruction；
4, the oxidation film after sealing of hole, which only needs to impregnate, can remove sealing of hole ash for several minutes, with by wiping oxidation film surface come
The method for removing sealing of hole ash is compared, and production efficiency can be improved in the present invention；
5, solution of the invention is environmental protection formulae, and wastewater treatment is simple.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
The processing method of aluminium alloy anode oxide film of the present invention is specific as follows:
1, degreasing
It is molten that Al alloy parts are immersed into the degreasing containing sulfuric acid mass fraction 10%~15%, 1~5g/L of OP-10 emulsifier
In liquid, 2~8min of soaking time, 40~50 DEG C of temperature；
2, alkali cleaning
It is 50~150g/L, 1~5g/L of sodium gluconate, temperature 50~60 that aluminum component after degreasing, which immerses naoh concentration,
DEG C lye in, the time is 15~60s, can remove the oxide of aluminium workpiece surface self-assembling formation and dirty；
3, it neutralizes
Aluminium workpiece surface after alkali cleaning has dust, aluminum component is immersed in the nitric acid solution that concentration is 5~20%, is impregnated under room temperature
10~60s；
4, chemical polishing
Use mixture based on phosphoric acid (85%) and sulfuric acid (98%) as chemical polishing solution, the quality of phosphoric acid and sulfuric acid
The ratio between be 4:1, molten 15~20g/L of aluminium, 90~100 DEG C of temperature, addition 0.1~0.5g/L copper sulphate be used as brightener, change
10~60s of optical polishing time；
5, it neutralizes
Aluminium workpiece surface after chemical polishing has dust, and neutralization method is the same as step 3；
6, anodic oxidation
Using 180~200g/L of sulfuric acid concentration aqueous solution be electrolyte carry out anodic oxidation, 18~20 DEG C of temperature, direct current
Voltage 14V, 2~15g/L of aluminium content, oxidization time 40min；
7, it dyes
Using black wild 415 dyeings difficult to understand, 8~12g/L of concentration, pH value 5.5~6.0, dyes 5 by 30~40 DEG C of temperature
~15min, dyes aterrimus；
8, sealing of hole
The long-time sealing of hole in the nickel acetate hole sealing solution close to aging can get the anode oxide film with sealing of hole ash.
The sealing of hole time be 40min, 85~95 DEG C of temperature；
9, ash disposal is impregnated
Workpiece after sealing of hole is immersed in sealing of hole ash disposal solution described in each embodiment and comparative example, after the completion at EDI
Water cleaning 3 is managed, then is dried at 80 DEG C；
10, anodic oxidation film outward appearance is checked.
Embodiment 1
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, is formed as follows:
Impregnating the process conditions of ash disposal are as follows: pH value 4.4 (is adjusted) with citric acid or ammonium hydroxide, and 82 DEG C of temperature, soaking time
4min；3 are cleaned with EDI processing water after the completion, then is dried at 80 DEG C.
The oxidation film visual inspection surface of ash disposal solution processing is immersed without bright after dyeing oxidation film and true qualities oxidation film sealing of hole
Aobvious variation aoxidizes film surface using the clean non-dust cloth wiping after wet, sealing of hole ash is not detected.
Embodiment 2
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, is formed as follows:
Impregnate the process conditions of ash disposal: pH value 4.7 (is adjusted) with citric acid or ammonium hydroxide, and 86 DEG C of temperature, soaking time 6min；
3 are cleaned with EDI processing water after the completion, then is dried at 80 DEG C.
It is impregnated after aluminium alloy anode oxide film sealing of hole using the sealing of hole ash disposal solution of the present embodiment, black oxide film and true qualities
The sealing of hole ash of oxidation film completely removes, and the tone on black anodized layer surface is stablized.
Embodiment 3
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, is formed as follows:
Impregnate the process conditions of ash disposal: pH value 4.0 (is adjusted) with tartaric acid or ammonium hydroxide, and 80 DEG C of temperature, soaking time
10min；3 are cleaned with EDI processing water after the completion, then is dried at 80 DEG C.
The oxidation film visual inspection surface of ash disposal solution processing is immersed without bright after dyeing oxidation film and true qualities oxidation film sealing of hole
Aobvious variation aoxidizes film surface using the clean non-dust cloth wiping after wet, sealing of hole ash is not detected.
Embodiment 4
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, is formed as follows:
Impregnate the process conditions of ash disposal: pH value 5.0 (is adjusted) with glycolic or ammonium hydroxide, and 90 DEG C of temperature, soaking time 2min；
3 are cleaned with EDI processing water after the completion, then is dried at 85 DEG C.
The oxidation film visual inspection surface of ash disposal solution processing is immersed without bright after dyeing oxidation film and true qualities oxidation film sealing of hole
Aobvious variation aoxidizes film surface using the clean non-dust cloth wiping after wet, sealing of hole ash is not detected.
Comparative example 1
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, composition is basic with embodiment 1
It is identical, it the difference is that only: not adding EDTA-2Na in the component of this comparative example.
The oxidation film visual inspection surface that the processing of ash disposal solution is immersed after dyeing oxidation film and true qualities oxidation film sealing of hole has less
Grey stain residual is measured, wipes oxidation film surface using the clean non-dust cloth after wet, there is sealing of hole ash trace on non-dust cloth surface.But it can lead to
It crosses extension soaking time and completely removes sealing of hole ash.
Comparative example 2
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, composition is basic with embodiment 1
It is identical, it the difference is that only: not adding EDTA-2Na in the component of this comparative example, and triethanolamine content is 2.5g/L.
The oxidation film visual inspection surface that the processing of ash disposal solution is immersed after dyeing oxidation film and true qualities oxidation film sealing of hole slightly has
Sealing of hole ash residual aoxidizes film surface using the clean non-dust cloth wiping after wet, and non-dust cloth equally has sealing of hole grey.
Comparative example 3
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, composition is basic with embodiment 3
It is identical, it the difference is that only: being not added with antisludging agent ATMP in the component of this comparative example.
There is envelope on the oxidation film visual inspection surface that the processing of ash disposal solution is immersed after dyeing oxidation film and true qualities oxidation film sealing of hole
Hole ash aoxidizes film surface using the clean non-dust cloth wiping after wet, there is sealing of hole ash residual on non-dust cloth.
Comparative example 4
A kind of solution for removing aluminium alloy anode oxide film sealing of hole ash is present embodiments provided, composition is basic with embodiment 4
It is identical, it the difference is that only: not adding disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate in the component of this comparative example.
The oxidation film visual inspection aluminium alloy work that ash disposal solution is handled is immersed after dyeing oxidation film and true qualities oxidation film sealing of hole
Watermark is arranged at part bottom, aoxidizes film surface using the clean non-dust cloth wiping after wet, remains in addition to the watermark of bottom without sealing of hole ash.
In conclusion the solution of removal aluminium alloy anode oxide film sealing of hole ash provided by the invention has the advantages that
1, it goes to oxide film dissolving surface to be formed by sealing of hole ash in sealing of hole process, avoids the formation of dirty surfaces；
2, there is facilitation to the sealing of hole of oxidation film, so that the sealing of hole of oxidation film is more thorough；
3, while removing sealing of hole ash, to oxidation film without destruction；
4, the oxidation film after sealing of hole, which only needs to impregnate, can remove sealing of hole ash for several minutes, with by wiping oxidation film surface come
The method for removing sealing of hole ash is compared, and production efficiency can be improved in the present invention；
5, solution of the invention is environmental protection formulae, and wastewater treatment is simple.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of solution for removing aluminium alloy anode oxide film sealing of hole ash, which is characterized in that each component including following content: alcohol
1.5~3g/L of amine, 0.3~1.5g/L of organic acid, 0.2~1g/L of complexing agent, 0.5~2ml/L of antisludging agent, anion surface active
10~50mg/L of agent, surplus are deionized water.
2. the solution of removal aluminium alloy anode oxide film sealing of hole ash as described in claim 1, which is characterized in that the hydramine choosing
From at least one of triethanolamine or diethanol amine.
3. the solution of removal aluminium alloy anode oxide film sealing of hole ash as described in claim 1, which is characterized in that the organic acid
Acidic environment is provided, one of citric acid, acetic acid, glycolic, tartaric acid or a variety of are selected from.
4. the solution of removal aluminium alloy anode oxide film sealing of hole ash as described in claim 1, which is characterized in that the complexing agent
Selected from one or both of EDTA-2Na and NTA.
5. the solution of removal aluminium alloy anode oxide film sealing of hole ash as described in claim 1, which is characterized in that the antisludging agent
Selected from one of PBTCA, ATMP, EDTMPS or a variety of.
6. the solution of removal aluminium alloy anode oxide film sealing of hole ash as described in claim 1, which is characterized in that the anion
Surfactant is selected from one of disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, neopelex, lauryl sodium sulfate.
7. the solution of removal aluminium alloy anode oxide film sealing of hole ash as described in claim 1, which is characterized in that the solution is also
It is 4.0~5.0 that organic acid soln or weak aqua ammonia adjusting pH value, which is added,.
8. a kind of method using solution described in claim 1 removal aluminium alloy anode oxide film sealing of hole ash, which is characterized in that
The following steps are included:
Al alloy parts after sealing pores are immersed in the solution and are impregnated, then cleans, dry.
9. the method for removal aluminium alloy anode oxide film sealing of hole ash as claimed in claim 8, which is characterized in that the immersion
Temperature is 80~90 DEG C, and soaking time is 2~10min.
10. the method for removal aluminium alloy anode oxide film sealing of hole ash as claimed in claim 8, which is characterized in that the drying
Temperature is 80~85 DEG C；The step of cleaning specifically: using EDI processing water cleaning at least 3.
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| CN201910310050.2A CN110029389B (en) | 2019-04-17 | 2019-04-17 | Solution for removing hole sealing ash of aluminum alloy anodic oxide film |
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| CN201910310050.2A CN110029389B (en) | 2019-04-17 | 2019-04-17 | Solution for removing hole sealing ash of aluminum alloy anodic oxide film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644030A (en) * | 2019-09-20 | 2020-01-03 | 成都阳光铝制品有限公司 | Preparation method of anticorrosive aluminum profile |
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| CN109402702A (en) * | 2018-10-17 | 2019-03-01 | 佛山市南海双成金属表面技术有限公司 | Deashing agent and preparation method thereof after a kind of closing of aluminium alloy anode oxide technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN87102467A (en) * | 1987-03-29 | 1988-10-12 | 广东有色金属加工厂 | The pore sealing method of aluminium and alloy anodized film thereof |
| US20130292256A1 (en) * | 2012-05-07 | 2013-11-07 | Catcher Technology Co., Ltd. | Method of forming skid-proof leather-texture surface on metallic substrate |
| US20150001090A1 (en) * | 2012-08-16 | 2015-01-01 | Catcher Technology Co., Ltd. | Method of forming skid-proof leather-texture surface on metallic substrate |
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| CN110644030A (en) * | 2019-09-20 | 2020-01-03 | 成都阳光铝制品有限公司 | Preparation method of anticorrosive aluminum profile |
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