CN104388937B - Chemical polishing solution for aluminum alloy frosted exterior trimming parts and application of chemical polishing solution - Google Patents
Chemical polishing solution for aluminum alloy frosted exterior trimming parts and application of chemical polishing solution Download PDFInfo
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- CN104388937B CN104388937B CN201410608066.9A CN201410608066A CN104388937B CN 104388937 B CN104388937 B CN 104388937B CN 201410608066 A CN201410608066 A CN 201410608066A CN 104388937 B CN104388937 B CN 104388937B
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Abstract
The invention discloses a chemical polishing solution for aluminum alloy frosted exterior trimming parts and application of the chemical polishing solution. The chemical polishing solution is prepared from tartaric acid, sodium persulfate and a mixed solution which is formed by dissolving a nitrogenous organic brightener into sulfuric acid and acrylic acid, wherein the volume ratio of sulfuric acid to acrylic acid is (2-6):1, the mass percent concentration of sulfuric acid is 98%, and the concentrations of the rest components in the mixed solution of sulfuric acid and acrylic acid are as follows: the concentration of tartaric acid is 4.0-7.0g/L, the concentration of sodium persulfate is 15.0-40.0g/L, and the concentration of the nitrogenous organic brightener is 2.5-5.5g/L. The chemical polishing solution disclosed by the invention is short in polishing time and convenient and quick to operate, has a good polishing effect on sandblast aluminum alloy pieces and a good frosting effect, belongs to environment-friendly formulas and has good application prospect.
Description
Technical field
The present invention relates to a kind of polishing fluid and in particular to a kind of chemical polishing solution for aluminium alloy frosted exterior trimming parts and its
Preparation.
Background technology
Aluminium alloy because light weight, easy-formation and good can be ornamental, use often as exterior trimming parts, such as mobile phone, flat
The shell of plate computer.In order to obtain the exterior finish with frosted finish effect, in aluminium alloy exterior trimming parts surface treatment process frequently with
The process of " sandblasting defat is washed pickling and washed chemical polishing washing anodic oxidation "
Technique, wherein chemical polishing operation very crucial it is desirable to frosted finish effect should be kept, reach certain bright degree again.Mesh
The aluminum alloy chemically polishing fluid that front market mainly uses is still with the " sulfur of three acid systems of " sulfuric-phosphoric-nitric acid " and its improvement
Based on acid-phosphoric acid " two acid system, these chemical polishing solutions are readily available bright in mirror surface effect, are but difficult to meet sandblasting exterior trim
The requirement of part.Based on this, obtain a kind of chemical polishing solution being specifically designed for aluminium alloy frosted exterior trim requirement and its preparation technology is
Very necessary.
Content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of chemical polishing for aluminium alloy frosted exterior trimming parts
Liquid it is characterised in that being made up of tartaric acid, sodium peroxydisulfate and nitrogenous organic brightener vitriolization and acrylic acid mixed liquor,
Wherein sulphuric acid and acrylic acid volume ratio are 2 ~ 6:1, and the mass percent concentration of sulphuric acid is 98%, and remaining composition is in sulphuric acid and third
Concentration in the mixed liquor of olefin(e) acid is as follows: tartaric acid 4.0 ~ 7.0g/l；Sodium peroxydisulfate 15.0 ~ 40.0g/l；Nitrogenous organic brightener
2.5~5.5g/l.
Preferably, described nitrogenous organic brightener be hexamethylenetetramine, one of them or its of leucine or nicotinic acid two
Plant any of the above mixture.
Preferably, the above-mentioned chemical polishing solution for aluminium alloy frosted exterior trimming parts, wherein, sulphuric acid and acrylic acid volume
Than for 3:1, concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is as follows: tartaric acid 6.0g/l；Sodium peroxydisulfate 23.0
g/l；Nitrogenous organic brightener 5.5 g/l.
Preferably, described nitrogenous organic brightener is leucine and nicotinic acid mass ratio is the mixture of 2:1.
The present invention provides the preparation method of above-mentioned chemical polishing solution, comprises the steps: mass percent concentration 98%
Sulphuric acid and acrylic acid are mixed to get mixed liquor according to described volume ratio, according to described concentration by tartaric acid, sodium peroxydisulfate and nitrogenous
Organic brightener is dissolved in described mixed liquor.
The present invention also provides the application of above-mentioned chemical polishing solution, comprises the steps: 1) by described chemical polishing liquid temperature
Degree is heated to 85 ~ 110 DEG C, is then incubated；2) aluminium alloy, after sandblasting, defat, washing, pickling and washing, immerses described chemistry
In polishing fluid, standing, take out aluminium alloy and vacantly stand, drip washing, dry up.
Preferably, step 2) in time of repose be 30 ~ 180s, hanging time of repose be 10 ~ 30s.
It is further preferred that temperature is 105 DEG C in step 1)；Step 2) in time of repose be 60s, hanging time of repose is
20s.
The chemical polishing solution of the present invention can reach following effect:
1) polishing time is short, convenient to operation；
2) excellent to sandblasting Al-alloy parts polishing effect, there is good frosted finish effect；
3) polishing fluid not phosphoric acid and nitric acid, belongs to environment-friendly type formula, has a good application prospect；
4) with sulphuric acid as main component, with low cost；
5) in polishing process, polishing fluid does not splash, does not play smog, safe operation.
Specific embodiment
With reference to specific embodiment, the invention will be further described, so that those skilled in the art can be more preferable
Understand the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Embodiment 1:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 3:1,
Concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 6.0g/l；
Sodium peroxydisulfate 23.0 g/l；
Leucine and nicotinic acid (mass ratio 2:1) 5.5 g/l.
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (leucine and nicotinic acid) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, until being uniformly dissolved,
Obtain polishing fluid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 105 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 60s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 80, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.(remarks: g value is object table
In the face of the expression of light degree of reflection, its numerical value is more high brighter)
Embodiment 2:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 2:1,
Concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 7.0g/l
Sodium peroxydisulfate 15.0 g/l
Leucine and hexamethylenetetramine (mass ratio 2:1) 3.5 g/l
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (leucine and hexamethylenetetramine) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, until
It is uniformly dissolved, obtain polishing fluid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 105 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 120s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 74, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.
Embodiment 3:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 4.5:
1, concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 4.0g/l
Sodium peroxydisulfate 39.0 g/l
Nicotinic acid 2.5 g/l
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (nicotinic acid) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, and until being uniformly dissolved, obtains polishing
Liquid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 95 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 120s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 68, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.
Embodiment 4:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 6:1,
Concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 5.0g/l
Sodium peroxydisulfate 31.0g/l
Leucine and hexamethylenetetramine (mass ratio 2:1) 4.5 g/l
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (leucine and hexamethylenetetramine) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, until
It is uniformly dissolved, obtain polishing fluid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 105 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 60s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 72, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.
Embodiment 5:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 3:1,
Concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 6.0g/l
Sodium peroxydisulfate 23.0 g/l
Leucine and nicotinic acid (mass ratio 2:1) 5.5 g/l
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (leucine and nicotinic acid) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, until being uniformly dissolved,
Obtain polishing fluid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 85 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 180s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 80, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.
Embodiment 6:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 3:1,
Concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 6.0g/l
Sodium peroxydisulfate 23.0 g/l
Leucine and nicotinic acid (mass ratio 2:1) 5.5 g/l
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (leucine and nicotinic acid) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, until being uniformly dissolved,
Obtain polishing fluid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 115 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 30s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 75, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.
Embodiment 7:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 6:1,
Concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 4.0g/l
Sodium peroxydisulfate 39.0 g/l
Leucine and hexamethylenetetramine (mass ratio 2:1) 4.5 g/l
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (leucine and hexamethylenetetramine) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, until
It is uniformly dissolved, obtain polishing fluid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 95 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 120s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 70, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.
Embodiment 8:
In the chemical polishing solution of the present embodiment, sulphuric acid (mass percent concentration 98%) and acrylic acid volume ratio are 3:1,
Concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is:
Tartaric acid 7.0g/l
Sodium peroxydisulfate 15.0 g/l
Leucine 3.5 g/l
The preparation method of above-mentioned chemical polishing solution: after sulphuric acid and acrylic acid are mixed, successively by tartaric acid, sodium peroxydisulfate and
Nitrogenous organic brightener (leucine) adds in sulphuric acid and acrylic acid mixed liquor, is slowly stirred, and until being uniformly dissolved, obtains and throws
Light liquid.This polishing fluid is clarified, and mix homogeneously is no layered, non-foam.
The application of above-mentioned polishing fluid: polishing liquid temp is heated to 115 DEG C, is then incubated, aluminium alloy is through " sandblasting takes off
After fat washing pickling washing " operation, immerse in this chemical polishing solution, stand 60s, vacantly stand after taking-up
20s, through cold water drip washing, cold wind checks polishing effect after drying up.
Implementation result: after polished, aluminum alloy surface has metallic luster, assumes good frosted finish effect, and polishing is uniform,
No excessive erosion defect, testing its glossiness g value by vancometer (g value test scope be 0 ~ 99) is 74, industrial to frosted
The glossiness of aluminium alloy exterior trimming parts is general to be required 60 ~ 80, and this implementation result meets requirement.
Embodiment described above is only the preferred embodiment lifted for absolutely proving the present invention, the protection model of the present invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, all in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (7)
1. a kind of chemical polishing solution for aluminium alloy frosted exterior trimming parts is it is characterised in that by tartaric acid, sodium peroxydisulfate and nitrogenous
Organic brightener vitriolization and acrylic acid mixed liquor are made, and wherein sulphuric acid and acrylic acid volume ratio are 2 ~ 6:1, sulphuric acid
Mass percent concentration is 98%, and concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is as follows:
Tartaric acid 4.0 ~ 7.0 g/l；
Sodium peroxydisulfate 15.0 ~ 40.0 g/l；
Nitrogenous organic brightener 2.5 ~ 5.5 g/l；
Wherein, described nitrogenous organic brightener be hexamethylenetetramine, one of them or its of leucine or nicotinic acid two or more
Any mixture.
2. the chemical polishing solution for aluminium alloy frosted exterior trimming parts according to claim 1 is it is characterised in that sulphuric acid and third
The volume ratio of olefin(e) acid is 3:1, and concentration in sulphuric acid and acrylic acid mixed liquor for remaining composition is as follows:
Tartaric acid 6.0g/l；
Sodium peroxydisulfate 23.0 g/l；
Nitrogenous organic brightener 5.5 g/l.
3. the chemical polishing solution for aluminium alloy frosted exterior trimming parts according to claim 2 is it is characterised in that described nitrogenous
Organic brightener is leucine and nicotinic acid mass ratio is the mixture of 2:1.
4. the preparation method of the chemical polishing solution described in any one of claim 1 ~ 3 is it is characterised in that comprise the steps: matter
The amount sulphuric acid of percent concentration 98% and acrylic acid are mixed to get mixed liquor according to described volume ratio, according to described concentration by winestone
Acid, sodium peroxydisulfate and nitrogenous organic brightener are dissolved in described mixed liquor.
5. the application of the chemical polishing solution described in any one of claim 1 ~ 3 is it is characterised in that comprise the steps: 1) by institute
State chemical polishing liquid temp and be heated to 85 ~ 110 DEG C, be then incubated；2) aluminium alloy is through sandblasting, defat, washing, pickling and washing
Afterwards, immerse in described chemical polishing solution, standing, take out aluminium alloy and vacantly stand, drip washing, dry up.
6. application according to claim 5 is it is characterised in that step 2) in time of repose be 30 ~ 180s, when vacantly standing
Between be 10 ~ 30s.
7. according to claim 5 application it is characterised in that in step 1) temperature be 105 DEG C；Step 2) in time of repose
For 60s, hanging time of repose is 20s.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410608066.9A CN104388937B (en) | 2014-11-03 | 2014-11-03 | Chemical polishing solution for aluminum alloy frosted exterior trimming parts and application of chemical polishing solution |
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| CN201410608066.9A CN104388937B (en) | 2014-11-03 | 2014-11-03 | Chemical polishing solution for aluminum alloy frosted exterior trimming parts and application of chemical polishing solution |
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| CN104388937B true CN104388937B (en) | 2017-01-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5393447A (en) * | 1993-07-09 | 1995-02-28 | Henkel Corporation | Composition and process for desmutting and deoxidizing without smutting |
| CN101368272A (en) * | 2007-08-15 | 2009-02-18 | 江苏海迅实业集团股份有限公司 | Aluminum and aluminum alloy material polishing solution |
| CN102101977B (en) * | 2009-12-18 | 2015-09-16 | 安集微电子（上海）有限公司 | A kind of chemical mechanical polishing liquid |
| CN103014712B (en) * | 2012-12-10 | 2014-11-26 | 深圳市宏达威化工有限公司 | Aluminum component correcting fluid and correction method thereof |
| CN103757636B (en) * | 2014-01-07 | 2016-06-22 | 华南理工大学 | A kind of chemical polishing solution and alloy surface polishing method |
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