CN100366797C - Aluminium coiled material coating acid cleaning agent - Google Patents
Aluminium coiled material coating acid cleaning agent Download PDFInfo
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- CN100366797C CN100366797C CNB2006100813801A CN200610081380A CN100366797C CN 100366797 C CN100366797 C CN 100366797C CN B2006100813801 A CNB2006100813801 A CN B2006100813801A CN 200610081380 A CN200610081380 A CN 200610081380A CN 100366797 C CN100366797 C CN 100366797C
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- coiled material
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- cleaning agent
- material coating
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Abstract
The present invention discloses an aluminum coiled material coating acidic cleaning agent which is formed by the composition of a constituent A and a constituent B, wherein the constituent A is a mixed aqueous solution prepared from the substances in the following concentrations of 150 to 300 g/L of surface active agent, 400 to 500 g/L of sulfuric acid, 50 to 80 g/L of complexing agent, 4 to 8 g/L of dispersing agent and 7 to 10 g/L of stabilizing agent, and the constituent B is 150 to 300 g/L of hydrofluoric acid aqueous solution. The surfaces of aluminum belts cleaned by the cleaning agent of the present invention are smooth, and conversion films chemically treated on the aluminum belts are continuous and uniform. The present invention has a low corrosion rate to aluminum materials, is capable of replacing the foreign similar products, and reduces cost. The cleaning agent has the advantages of good dirt removing effect and wide applicable range, is favorable for increasing production efficiency, and is capable of obtaining obvious economic benefit.
Description
Technical field
The present invention relates to a kind of industry and clean chemical, specifically, is a kind of aluminium coiled material coating acid cleaning agent.
Background technology
At present, before aluminium being carried out the coating processing, must clean completely aluminium earlier, to remove greasy dirt, aluminium bits and the natural oxide film on the aluminium material surface, this is the prerequisite that guarantees next step operation chemical conversion film quality, also is the basis that guarantees coating performance (as sticking power, corrosion-resistant etc.).The aluminium surface of natural oxidation is very irregular, quite loose alumina layer, is unfavorable for bonding.So, need remove the natural oxidation aluminium lamination.Present rinse product, surpassing the usage period easily decomposes, thereby has influenced normal coating production.
Summary of the invention
The objective of the invention is to, proposed a kind of aluminium coiled material coating acid cleaning agent.This clean-out system can thoroughly be removed greasy dirt, aluminium bits and the natural oxide film of aluminium material surface.
In order to realize above-mentioned goal of the invention, technical scheme of the present invention is:
Clean-out system is composited by A, B two components; Described A component is the mixed aqueous solution that following concentration material is formed: tensio-active agent 150-300g/L, sulfuric acid 400-500g/L, complexing agent 50-80g/L, dispersion agent 4-8g/L and stablizer 7-10g/L; Described B component is the hydrofluoric acid aqueous solution of 150-300g/L.
Under optimum condition, in the described A component, tensio-active agent is that 250g/L, sulfuric acid are that 450g/L, complexing agent are that 70g/L, dispersion agent are that 6g/L and stablizer are 8.5g/L.
The preparation method of component A is, after the ratio weighing in afore mentioned rules of tensio-active agent, sulfuric acid, complexing agent, dispersion agent and stablizer, adds in the entry, mixes to get final product.
Tensio-active agent is to be mixed by nonionogenic tenside (na-saa) alkylphenol polyoxyethylene and anion surfactant (a-saa) the sodium alkyl benzene sulfonate part by weight by 35: 1, and stirs, and cloud point is between 35-45 ℃.
Complexing agent is preferably citric acid.
Dispersion agent is to contain amino compound, is preferably diethylaminoethanol.
Stablizer is preferably thiocarbamide.
The A component is a light yellow liquid, and density is 1.274g/ml (15.6 ℃), total acid 21.6ml, and cloud point is 39 ℃; The B component is red transparent liquid, and density is 1.084g/ml (15.6 ℃), and the HF value is 22.3.
The vitriolic effect is that the matching surface promoting agent is removed the lip-deep greasy dirt of aluminium, aluminium bits and natural oxide film.
Hydrofluoric acid helps the dissolving that smeary is removed and aluminium is considered to be worth doing, can reduce cleaning temperature, and cleaning quality is improved on activation aluminium surface.But content is unsuitable too high, otherwise excessive erosion easily, and causes the damage of aluminium material surface.
The effect of described complexing agent be with solution in the aluminum ion complexing, thereby reduce aluminium ion concentration.And the increase gradually of aluminium ion concentration and greasy dirt amount in the solution can make the activity of clean-out system descend gradually, has influenced cleaning quality.The existence of complexing agent can prevent the active reduction of clean-out system.
Stablizer has two kinds of effects, i.e. dissemination and solublization.Dissemination is by to being disperseed the wetting of thing, and the interior molecules reactive force that reduces particle cluster makes that particle cluster is cracked to be dispersed in the solution, reduces two-phase interface tension force simultaneously and stops reassembling of particle to be realized.Solublization is to utilize its wetting ability and hydrophobicity and relative equilibrium effect, makes to be disperseed the thing molecule to be adsorbed and be inserted among the micellar " fence ", and reaches dissolving.
The main effect of dispersion agent is to have improved the dispersiveness of greasy dirt in aqueous cleaning solution.Along with the increase of flushing dose, the increase gradually of greasy dirt amount, if untimely greasy dirt is got rid of or is divided dissipate, the surface of aluminium will be assembled and be sticked to again to greasy dirt, thereby influence cleaning quality.Add an amount of dispersion agent, improved the dispersiveness of greasy dirt in aqueous cleaning solution, prevented that greasy dirt from reassembling in that aluminium is lip-deep, thereby improved cleaning quality.
The using method of aluminium coiled material coating acid cleaning agent, with A component thin up to 1.2-1.8% (V/V), with B component thin up to 0.010-0.014% (V/V), A component after the dilution and B component are mixed, at 50-65 ℃ the aluminium coiled material is sprayed, in the spray process, keep Al
3+Concentration is below 3g/L, and spray time is 5-60 second, and the aluminium sheet band is carried out spray Cleaning for High Capacity.
Best, under optimum condition, in the spray process, should keep Al
3+Concentration is below 2g/L.
In the front and back of the aluminium coiled material being carried out this step of spray Cleaning for High Capacity agent, also can wash.
At product structure, can carry out suitable blending ratio adjustment.As it is for sale as product to clean the back, can reduce the content of clean-out system B; And after cleaning, to further change into the japanning product, improve the content of clean-out system B.
The contriver shows that with various test and means clean-out system of the present invention has good cleaning performance.Mainly comprise two aspects of following resistant amount and detersive power, and main and foreign clean-out system contrasts:
A. resistant amount
Resistant amount result contrasts (appearance method test)
| The rolling oil mass (ml/L) that adds | External clean-out system (scavenging period 3 minutes) | Clean-out system of the present invention (scavenging period 3 minutes) |
| 0 | Moisture film is continuous | Moisture film is continuous |
| 5 | Moisture film is continuous | Moisture film is continuous |
| 10 | Moisture film is continuous | Moisture film is continuous |
| 20 | Moisture film is continuous | Moisture film is continuous |
| 25 | Moisture film is continuous | Moisture film is continuous |
| 30 | Moisture film is continuous | Moisture film is continuous |
| 35 | Moisture film is continuous | Moisture film is continuous |
| 40 | Moisture film is continuous | Moisture film is continuous |
| 45 | Moisture film is continuous | Moisture film is continuous |
| 50 | Moisture film is continuous | Moisture film is continuous |
| 55 | Moisture film is continuous | Moisture film is continuous |
| 60 | Moisture film is continuous | Moisture film is continuous |
| 65 | Moisture film is continuous | Moisture film is continuous |
| 70 | Moisture film is discontinuous | Moisture film is discontinuous |
| 75 | Moisture film is discontinuous | Moisture film is discontinuous |
Both are suitable for the resistant figureofmerit.
B. the detection method with following four kinds of detersive poweies detects, and the result is as follows:
Appearance method measurement result (clean to the moisture film successive shortest time, unit is second)
| Numbering | 1 | 2 | 3 | 4 | 5 | On average |
| External clean-out system | 35 | 40 | 42 | 39 | 41 | 39.4 |
| Clean-out system of the present invention | 38 | 40 | 41 | 36 | 42 | 39.4 |
Cupric sulphate dropping test method measurement result (%)
| Numbering | 1 | 2 | 3 | On average |
| External clean-out system | 90 | 91 | 94 | 91.7 |
| Clean-out system of the present invention | 92 | 94 | 94 | 93.3 |
Contact horn cupping measurement result (contact angle is poor)
| Numbering | 1 | 2 | 3 | 4 | 5 | 6 | On average |
| External clean-out system | 63.17 | 65.45 | 60.78 | 62.34 | 62.90 | 63.01 | 62.94 |
| Clean-out system of the present invention | 64.70 | 63.41 | 60.73 | 65.43 | 62.77 | 63.50 | 63.42 |
The conversion film coating
| Substrate | Pure aluminum plate 0.5*150*300 | ||||
| The coating code name | DE-212-1201 priming paint | The DJ-242-88011 finish paint | |||
| The clean-out system title | Numbering | 1 | 2 | 1 | 2 |
| External clean-out system | Thickness (um) | 4.0 | 4.5 | 20.6 | 20.0 |
| Draw lattice (level) | 1 | 1 | 1 | 1 | |
| T bends (T) | 2 | 2 | 2 | 2 | |
| Impact (J) | ＞3.6 | ＞3.6 | ＞3.6 | ＞3.6 | |
| Clean-out system of the present invention | Thickness (um) | 4.5 | 5.0 | 21.5 | 21.0 |
| Draw lattice (level) | 1 | 1 | 1 | 1 | |
| T bends (T) | 2 | 2 | 2 | 2 | |
| Impact (J) | ＞3.6 | ＞3.6 | ＞3.6 | ＞3.6 | |
The present invention has the following advantages: clean-out system of the present invention has good cleaning and descaling ability.The aluminium strip that uses clean-out system of the present invention to clean, any surface finish, it is even continuously to carry out chemically treated conversion film thereon, low to the aluminium corrosion rate, can substitute foreign like product.
Embodiment
Below providing specific embodiment further specifies.The purpose of these embodiment is illustrative, and should not be construed as limitation of the present invention.
Embodiment 1
Get alkylphenol polyoxyethylene 243g, sodium alkyl benzene sulfonate 7g, sulfuric acid 450g (density 1.84,98%), citric acid 70g, diethylaminoethanol 6g, thiocarbamide 8.5g.Earlier alkylphenol polyoxyethylene and sodium alkyl benzene sulfonate are stirred, about 45 ℃ of cloud point adds water to 1 liter then, is made into the A component.Get hydrofluoric acid 350g (density 1.15,40%), add water to 1 liter, be made into the B component.
With the A component thin up to 1.2% (V/V) for preparing, with B component thin up to 0.010% (V/V), A component after the dilution and B component are mixed, be heated to 55 ℃.Get aluminium alloy 1100 samples, carried out spray Cleaning for High Capacity 5.5 seconds, washing then keeps Al
3+Concentration below 2g/L, aluminum alloy surface light, no greasy dirt, oxide-free.
Embodiment 2
Get alkylphenol polyoxyethylene 175g, sodium alkyl benzene sulfonate 5g, sulfuric acid 480g (density 1.84,98%), citric acid 65g, diethylaminoethanol 5g, thiocarbamide 8g.Earlier alkylphenol polyoxyethylene and sodium alkyl benzene sulfonate are stirred, cloud point adds water to 1 liter then about 35 ℃, be made into the A component.Get hydrofluoric acid 250g (density 1.15,40%), add water to 1 liter, be made into the B component.
With the A component thin up to 1.8% (V/V) for preparing, with B component thin up to 0.014% (V/V), A component after the dilution and B component are mixed, be heated to 55 ℃.Washing then, aluminium alloy 1100 specimen surfaces have a little greasy dirt, and oxide compound is arranged; The spray Cleaning for High Capacity agent is cleaned then, continues 25 seconds, and washing then keeps Al
3+Concentration is below 3g/L.Clean back aluminum alloy surface light, no greasy dirt, oxide-free.
More than aluminium coiled material coating acid cleaning agent provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. an aluminium coiled material coating acid cleaning agent is characterized in that, is composited by A, B two components; Described A component is the mixed aqueous solution that following concentration material is formed: tensio-active agent 150-300g/L, sulfuric acid 400-500g/L, complexing agent 50-80g/L, dispersion agent 4-8g/L and stablizer 7-10g/L; Described B component is the hydrofluoric acid aqueous solution of 150-300g/L.
2. aluminium coiled material coating acid cleaning agent according to claim 1 is characterized in that: in the described A component, tensio-active agent is that 250g/L, sulfuric acid are that 450g/L, complexing agent are that 70g/L, dispersion agent are that 6g/L and stablizer are 8.5g/L.
3. aluminium coiled material coating acid cleaning agent according to claim 1 and 2, it is characterized in that: described tensio-active agent is mixed by nonionogenic tenside alkylphenol polyoxyethylene and the anion surfactant sodium alkyl benzene sulfonate part by weight by 35: 1, and stir, cloud point is between 35-45 ℃.
4. aluminium coiled material coating acid cleaning agent according to claim 1 and 2 is characterized in that: described complexing agent is a citric acid.
5. aluminium coiled material coating acid cleaning agent according to claim 1 and 2 is characterized in that: described dispersion agent is a diethylaminoethanol.
6. aluminium coiled material coating acid cleaning agent according to claim 1 and 2 is characterized in that: described stablizer is a thiocarbamide.
7. the using method of the described aluminium coiled material coating acid cleaning agent of claim 1, it is characterized in that: with A component thin up to 1.2-1.8% (V/V), with B component thin up to 0.010-0.014% (V/V), A component after the dilution and B component are mixed, at 50-65 ℃ the aluminium coiled material is sprayed, keep Al
3+Concentration is below 3g/L, and spray time is 5-60 second.
8. the using method of aluminium coiled material coating acid cleaning agent according to claim 7 is characterized in that: during spray, keep Al
3+Concentration is below 2g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100813801A CN100366797C (en) | 2006-05-22 | 2006-05-22 | Aluminium coiled material coating acid cleaning agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100813801A CN100366797C (en) | 2006-05-22 | 2006-05-22 | Aluminium coiled material coating acid cleaning agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1851059A CN1851059A (en) | 2006-10-25 |
| CN100366797C true CN100366797C (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100813801A Expired - Fee Related CN100366797C (en) | 2006-05-22 | 2006-05-22 | Aluminium coiled material coating acid cleaning agent |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018238A (en) * | 2015-06-30 | 2015-11-04 | 安徽德诺化工有限公司 | Cleaning liquid for sapphire substrate wafer |
| CN106700715B (en) * | 2016-11-15 | 2020-08-28 | 姚佑灿 | Cleaning agent for removing paint on plastic surface and preparation method thereof |
| CN107723720B (en) * | 2017-10-09 | 2019-06-18 | 广州三孚新材料科技股份有限公司 | A kind of aluminium and aluminium alloy remove film and its application |
| CN107904047A (en) * | 2017-11-22 | 2018-04-13 | 广东桑海环保有限公司 | Efficient acidic cleaner and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5328245B2 (en) * | 1974-02-14 | 1978-08-14 | ||
| US4370173A (en) * | 1981-05-15 | 1983-01-25 | Amchem Products, Inc. | Composition and method for acid cleaning of aluminum surfaces |
| CN1069079A (en) * | 1991-07-30 | 1993-02-17 | 韩允志 | The compound method of aluminum heat exchanger restrainer |
-
2006
- 2006-05-22 CN CNB2006100813801A patent/CN100366797C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5328245B2 (en) * | 1974-02-14 | 1978-08-14 | ||
| US4370173A (en) * | 1981-05-15 | 1983-01-25 | Amchem Products, Inc. | Composition and method for acid cleaning of aluminum surfaces |
| CN1069079A (en) * | 1991-07-30 | 1993-02-17 | 韩允志 | The compound method of aluminum heat exchanger restrainer |
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| CN1851059A (en) | 2006-10-25 |
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