CN103469276A - Method for improving acid-base corrosion resistance property of aluminum anode oxide film - Google Patents
Method for improving acid-base corrosion resistance property of aluminum anode oxide film Download PDFInfo
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- CN103469276A CN103469276A CN2013104233400A CN201310423340A CN103469276A CN 103469276 A CN103469276 A CN 103469276A CN 2013104233400 A CN2013104233400 A CN 2013104233400A CN 201310423340 A CN201310423340 A CN 201310423340A CN 103469276 A CN103469276 A CN 103469276A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 16
- 230000007797 corrosion Effects 0.000 title abstract description 15
- 238000005260 corrosion Methods 0.000 title abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- -1 titanium zircon salt Chemical class 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 22
- 239000008393 encapsulating agent Substances 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 10
- 238000007743 anodising Methods 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 4
- 239000001117 sulphuric acid Substances 0.000 claims description 4
- 235000011149 sulphuric acid Nutrition 0.000 claims description 4
- 238000005530 etching Methods 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 3
- PMTRSEDNJGMXLN-UHFFFAOYSA-N titanium zirconium Chemical compound [Ti].[Zr] PMTRSEDNJGMXLN-UHFFFAOYSA-N 0.000 claims description 3
- 238000007601 warm air drying Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 11
- 239000002253 acid Substances 0.000 abstract description 9
- 239000010936 titanium Substances 0.000 abstract description 5
- 229910052719 titanium Inorganic materials 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- DBJLJFTWODWSOF-UHFFFAOYSA-L nickel(ii) fluoride Chemical compound F[Ni]F DBJLJFTWODWSOF-UHFFFAOYSA-L 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 15
- 239000003513 alkali Substances 0.000 description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- LVIYYTJTOKJJOC-UHFFFAOYSA-N nickel phthalocyanine Chemical compound [Ni+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 LVIYYTJTOKJJOC-UHFFFAOYSA-N 0.000 description 1
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- BFXAWOHHDUIALU-UHFFFAOYSA-M sodium;hydron;difluoride Chemical compound F.[F-].[Na+] BFXAWOHHDUIALU-UHFFFAOYSA-M 0.000 description 1
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 description 1
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- Chemical Treatment Of Metals (AREA)
- Sealing Material Composition (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to a method for improving acid-base corrosion resistance property of an aluminum anode oxide film. According to the method, an aluminum alloy is subjected to sealing treatment in an ODM SEAL R-15 solution, an ODM SEAL ARS-22 solution, an ODM SEAL ARS-40 solution (R-15, ARS-22 and ARS-40 are products of the Shenzhen ODM Technology Co.,LTD) after being subjected to sulfuric acid anodic oxidation, wherein ODM SEAL R-15 is a nickel fluoride type sealing agent, ODM SEAL ARS-22 is a titanium zircon salt type sealing agent, and ODM SEAL ARS-40 is an alkaline silicate type sealing agent. The method has the beneficial effects that the aluminum anode oxide film has the excellent acid/base corrosion resistance property after being subjected to sealing treatment by using the method, and can meet the requirements of the test on the acid/base corrosion resistance of an aluminum alloy anode oxide film for automobile industry.
Description
Technical field
The invention belongs to the surfacecti proteon field of automotive industry aluminum alloy spare part, be specifically related to a kind of method that improves aluminum anodized film acid-alkali-corrosive-resisting performance.
Background technology
Along with the development of automotive industry, in automobile making, the ratio of aluminum alloy materials increases and has become the important composition parts of novel car body gradually.Owing to often adopting the alkaline cleaner of pH value in the 11-13.5 scope in the automobile washing process, so the alkali corrosion resistance performance that automotive industry is processed the aluminium component surface has higher requirement.In prior art, only have the method for the sealing aluminum anodized film of minority to meet the requirement that automotive industry is formulated.For example, European patent EP 1873278 has proposed to adopt the encapsulant of silicate to carry out aftertreatment to the aluminum anodized film that carries out sealing treatment, and the film surface obtained has higher alkali corrosion resistance performance; Patent DE1521664 proposes aluminum anodized film is first carried out to sealing treatment in the alkaline aqueous solution of metal-containing salt, adopts subsequently the aqueous solution of silicate to carry out aftertreatment.The alkali resistance of the aluminum anodized film of processing through above-mentioned patented technology is greatly improved, obtained effect preferably, but the aluminum alloy part after above-mentioned treatment process first is placed in dilute hydrochloric acid (pH ≈ 1) solution while being placed on the solution of strong basicity (pH12.5-pH13.5), the erosion resistance of anode oxide film is poor, by heavy corrosion.Therefore purpose of the present invention aims to provide a kind of aluminum anodized film that makes and has higher acid resistance and alkali-proof treatment process, and the method has compared with prior art improved the acidproof and alkali corrosion resistance performance of alumilite process rete.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and a kind of method that improves aluminum anodized film acid-alkali-corrosive-resisting performance is provided.
The objective of the invention is to complete by following technical solution.The method of this raising aluminum anodized film acid-alkali-corrosive-resisting performance, after aluminium alloy is carried out to conventional sulphuric acid anodizing processing, carry out successively nickelous fluoride salts solution normal temperature sealing, the sealing of titanium zirconium salt solution normal temperature, finally carry out the processing of silicate solutions high temperature closure, after sealing treatment, the alumilite process rete has excellent acidproof, alkali corrosion resistance performance, can use by automotive industry acid resistance, the alkali resistance test request of aluminum alloy spare part anode oxide film.Concrete steps are as follows:
(1) degreasing: the product that the weakly alkaline grease-removing agent ODM ALCLEAN10(that adopts 30g/L is Shenzhen Ou get Mei Science and Technology Ltd.) skimming treatment under the condition of 50 ℃;
(2) microetch: the product that ODM ALETCH M(is Shenzhen Ou get Mei Science and Technology Ltd. in the alkaline micro-etching agent of 50g/l) at 50 ℃, process 2min;
(3) except stain: the product that the aluminium alloy that will process through microetch is Shenzhen Ou get Mei Science and Technology Ltd. with 100ml/L stain remover ODM DESMUT GE() normal temperature is processed 1min;
(4) anodic oxidation: will put into the sulfuric acid oxidation groove through the aluminium alloy of above-mentioned processing and carry out anodic oxidation treatment, sulfuric acid concentration is 180g/L, current density 1-2A/dm
2, 20 ℃ of temperature, oxidization time 30min;
(5) seal 1: the aluminium alloy after anodic oxidation treatment is placed in to the product that the encapsulant ODM SEAL R-15(of 5g/L is Shenzhen Ou get Mei Science and Technology Ltd.), process the 10-15min after washing under the condition of 20-30 ℃;
(6) seal 2: the aluminium alloy after nickelous fluoride salts solution sealing treatment is placed in the product that the encapsulant ODM SEAL ARS-22(of 100ml/L is Shenzhen Ou get Mei Science and Technology Ltd.), process the 10-15min after washing under the condition of 20-30 ℃;
(7) seal 3: the aluminium alloy after step (5), (6) sealing treatment is placed in the product that the encapsulant ODM SEAL ARS-40(of 40ml/L is Shenzhen Ou get Mei Science and Technology Ltd.), process the 15-20min after washing under the condition of 90-98 ℃;
(8) after sealing treatment, pure water cleans, warm air drying.
Aluminium alloy carries out the normal temperature sealing treatment after sulphuric acid anodizing in ODM SEAL R-15 solution, and wherein ODM SEAL R-15 is for take the encapsulant that nickelous fluoride is main salt.After anode oxide film is processed in encapsulant ODM SEAL R-15 solution, carry out sealing treatment again in ODM SEAL ARS-22 solution, wherein ODM SEAL ARS-22 is for take the encapsulant that titanium, zirconates and fluorochemical be main composition, titanium, zirconates are preferably the salt such as hexafluoro metatitanic acid, hexafluoro zirconate, potassium fluotitanate, potassium fluozirconate, sodium fluozirconate, ammonium fluozirconate, and fluorochemical is preferably Sodium Fluoride, sodium bifluoride, Potassium monofluoride, Neutral ammonium fluoride, ammonium bifluoride etc.The pH value use range of encapsulant ODM SEAL ARS-22 solution is that 3-7, titanium, zirconates concentration are that 5-20g/L, fluoride concn are 1-10g/L.After anode oxide film is processed in encapsulant ODM SEAL R-15, ODM SEAL ARS-22 solution, carry out the high temperature closure processing again in encapsulant ODM SEAL ARS-40 solution, wherein ODM SEAL ARS-40 is alkaline silicate salt encapsulant, and silicate is preferably the salt such as water glass, potassium silicate, sodium methyl silicate, lithium silicate.The pH value use range of encapsulant ODM SEAL ARS-40 solution is 9-11, and silicate concentration is 1-50g/L.
Beneficial effect of the present invention is: after aluminum anodized film is carried out to the aforesaid method sealing treatment, rete has excellent acidproof, alkali corrosion resistance performance, meets acid resistance, the alkali-proof test request of automotive industry with aluminium alloy anode oxide film.
Embodiment
Below by embodiment, the present invention is further elaborated, and embodiment will help to understand better the present invention, but the present invention is not limited only to following embodiment.
The method of this raising aluminum anodized film acid-alkali-corrosive-resisting performance, after aluminium alloy is carried out to conventional sulphuric acid anodizing processing, carry out successively nickelous fluoride salts solution normal temperature sealing, the sealing of titanium zirconium salt solution normal temperature, finally carry out the processing of silicate solutions high temperature closure, after sealing treatment, the alumilite process rete has excellent acidproof, alkali corrosion resistance performance, can use by automotive industry acid resistance, the alkali resistance test request of aluminum alloy spare part anode oxide film.Concrete steps are as follows:
(5) degreasing: the product that the weakly alkaline grease-removing agent ODM ALCLEAN10(that adopts 30g/L is Shenzhen Ou get Mei Science and Technology Ltd.) skimming treatment under the condition of 50 ℃;
(6) microetch: the product that ODM ALETCH M(is Shenzhen Ou get Mei Science and Technology Ltd. in the alkaline micro-etching agent of 50g/l) at 50 ℃, process 2min;
(7) except stain: the product that the aluminium alloy that will process through microetch is Shenzhen Ou get Mei Science and Technology Ltd. with 100ml/L stain remover ODM DESMUT GE() normal temperature is processed 1min;
(8) anodic oxidation: will put into the sulfuric acid oxidation groove through the aluminium alloy of above-mentioned processing and carry out anodic oxidation treatment, sulfuric acid concentration is 180g/L, current density 1-2A/dm
2, 20 ℃ of temperature, oxidization time 30min;
(5) seal 1: the aluminium alloy after anodic oxidation treatment is placed in to the product that the encapsulant ODM SEAL R-15(of 5g/L is Shenzhen Ou get Mei Science and Technology Ltd.), process the 10-15min after washing under the condition of 20-30 ℃;
(6) seal 2: the aluminium alloy after nickelous fluoride salts solution sealing treatment is placed in the product that the encapsulant ODM SEAL ARS-22(of 100ml/L is Shenzhen Ou get Mei Science and Technology Ltd.), process the 10-15min after washing under the condition of 20-30 ℃;
(7) seal 3: the aluminium alloy after step (5), (6) sealing treatment is placed in the product that the encapsulant ODM SEAL ARS-40(of 40ml/L is Shenzhen Ou get Mei Science and Technology Ltd.), process the 15-20min after washing under the condition of 90-98 ℃;
(8) after sealing treatment, pure water cleans, warm air drying.
In the present invention, through degreasing, microetch, except the aluminium flake (1050A) after stain, be placed in sulfuric acid electrolyte (180g/L), with the electrolysis voltage of 15V, by aluminium flake anodic oxidation 30min, the oxide thickness obtained is about 8-10 μ m.Aluminium flake through anodic oxidation treatment is carried out to following sealing treatment.The method provided according to table 1 is carried out the acid-alkali-corrosive-resisting test.
The demonstration of table 2 result, aluminium flake is after three sealing treatment provided herein, and oxidation film layer can be by acidproof, alkaline-resisting test, and rete has excellent acid-alkali-corrosive-resisting performance; And do not pass through titanium zirconates sealing treatment, and only through fluoridizing the aluminium flake of nickel salt and silicate sealing treatment, can not test by acid-alkali-corrosive-resisting, the corrosion resistance nature of rete is poor.
Embodiment 1
ODM SEAL R-15(5g/L, 25 ℃, 10min are processed in sealing 1)
ODM SEAL ARS-22(100ml/L, 25 ℃, 10min, pH=4 are processed in sealing 2)
ODM SEAL ARS-40(40ml/L, 95 ℃, 15min, pH=10 are processed in sealing 3)
Embodiment 2
ODM SEAL R-15(5g/L, 25 ℃, 10min are processed in sealing 1)
ODM SEAL ARS-22(100ml/L, 30 ℃, 10min, pH=5 are processed in sealing 2)
ODM SEAL ARS-40(40ml/L, 95 ℃, 15min, pH=10 are processed in sealing 3)
Embodiment 3
ODM SEAL R-15(5g/L, 25 ℃, 15min are processed in sealing 1)
ODM SEAL ARS-22(100ml/L, 30 ℃, 10min, pH=6 are processed in sealing 2)
ODM SEAL ARS-40(40ml/L, 95 ℃, 20min, pH=10 are processed in sealing 3)
Embodiment 4
ODM SEAL R-15(5g/L, 25 ℃, 10min are processed in sealing 1)
ODM SEAL ARS-40(40ml/L, 95 ℃, 20min, pH=10 are processed in sealing 2)
Table 1 testing method
Table 2 result
| Embodiment | The acid corrosion test | The caustic corrosion test | The acid and alkali corrosion test |
| 1 | The rete outward appearance is unchanged | The rete outward appearance is unchanged | The rete outward appearance is unchanged |
| 2 | The rete outward appearance is unchanged | The rete outward appearance is unchanged | The rete outward appearance is unchanged |
| 3 | The rete outward appearance is unchanged | The rete outward appearance is unchanged | The rete outward appearance is unchanged |
| 4 | The rete outward appearance is unchanged | Rete slightly corrodes | The rete seriously corroded |
The above, be only most preferred embodiment of the present invention, not the present invention done to any pro forma restriction.Any those skilled in the art; within not breaking away from the technical solution of the present invention scope; all can utilize above-mentioned technology contents to make a little change; obtain equivalent embodiment; in every case be the content that does not break away from technical solution of the present invention; simple modification, the equivalent variations above embodiment done according to technical spirit of the present invention, all belong in the protection domain of technical solution of the present invention.
Claims (1)
1. a method that improves aluminum anodized film acid-alkali-corrosive-resisting performance, it is characterized in that: after aluminium alloy is carried out to conventional sulphuric acid anodizing processing, carry out successively the sealing of nickelous fluoride salts solution normal temperature, the sealing of titanium zirconium salt solution normal temperature, finally carry out the processing of silicate solutions high temperature closure, concrete steps are as follows:
(1) degreasing: adopt weakly alkaline grease-removing agent ODM ALCLEAN10 skimming treatment under the condition of 50 ℃ of 30g/L;
(2) microetch: in the alkaline micro-etching agent of 50g/l, ODM ALETCH M processes 2min at 50 ℃;
(3) except stain: the aluminium alloy that will process through microetch is processed 1min with 100ml/L stain remover ODM DESMUT GE normal temperature;
(4) anodic oxidation: will put into the sulfuric acid oxidation groove through the aluminium alloy of above-mentioned processing and carry out anodic oxidation treatment, sulfuric acid concentration is 180g/L, current density 1-2A/dm
2, 20 ℃ of temperature, oxidization time 30min;
(5) seal 1: the aluminium alloy after anodic oxidation treatment is placed in to the encapsulant ODM SEAL R-15 of 5g/L, processes the 10-15min after washing under the condition of 20-30 ℃;
(6) seal 2: the aluminium alloy after nickelous fluoride salts solution sealing treatment is placed in the encapsulant ODM SEAL ARS-22 of 100ml/L, processes the 10-15min after washing under the condition of 20-30 ℃;
(7) seal 3: the aluminium alloy after step (5), (6) sealing treatment is placed in the encapsulant ODM SEAL ARS-40 of 40ml/L, processes the 15-20min after washing under the condition of 90-98 ℃;
(8) after sealing treatment, pure water cleans, warm air drying.
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| CN201310423340.0A CN103469276B (en) | 2013-09-16 | 2013-09-16 | A kind of method improving aluminum anodized film acid-alkali-corrosive-resisting performance |
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| CN201310423340.0A CN103469276B (en) | 2013-09-16 | 2013-09-16 | A kind of method improving aluminum anodized film acid-alkali-corrosive-resisting performance |
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| CN104592801A (en) * | 2015-02-02 | 2015-05-06 | 四川大学 | Water-based autophoretic paint wet film post-treatment fluid |
| CN104862762A (en) * | 2015-04-27 | 2015-08-26 | 武汉菲尼克化学有限公司 | Aluminum or aluminum alloy anode oxide film hole sealing treatment method |
| CN105040067A (en) * | 2015-09-09 | 2015-11-11 | 佛山市海化表面处理科技有限公司 | Environment-friendly nickel-free fluoride-free intermediate-temperate sealing agent and sealing method |
| CN105624761A (en) * | 2016-01-04 | 2016-06-01 | 瑞声光电科技(常州)有限公司 | Perspiration resisting liquid improving technique for aluminum alloy casing |
| CN106119924A (en) * | 2016-06-21 | 2016-11-16 | 武汉风帆电化科技股份有限公司 | A kind of improve aluminum and aluminium alloy anode oxide film alkali resistance and the method for sealing of corrosion resisting property |
| CN106637338A (en) * | 2016-12-06 | 2017-05-10 | 上海英汇科技发展有限公司 | Anodic oxidation process for automobile aluminum alloy baggage holders |
| CN108624935A (en) * | 2017-03-21 | 2018-10-09 | 上海铝通化学科技有限公司 | A kind of closing process of alkali resistance confining liquid and aluminum alloy surface oxidation film |
| CN109183122A (en) * | 2018-10-15 | 2019-01-11 | 燕山大学 | A kind of aluminum or aluminum alloy anode oxide film confining liquid and its application |
| CN109763160A (en) * | 2019-01-17 | 2019-05-17 | 科盈创新科技(广州)有限公司 | A kind of pre- sealer and processing method for alumina |
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| CN104862762A (en) * | 2015-04-27 | 2015-08-26 | 武汉菲尼克化学有限公司 | Aluminum or aluminum alloy anode oxide film hole sealing treatment method |
| CN105040067B (en) * | 2015-09-09 | 2017-09-29 | 佛山市海化表面处理科技有限公司 | Environment-friendly type nickel-free free-floride mid-temperature sealing agent and enclosure method |
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| CN106119924B (en) * | 2016-06-21 | 2018-06-22 | 武汉风帆电化科技股份有限公司 | It is a kind of to improve aluminium and the method for sealing of aluminium alloy anode oxide film alkali resistance and corrosion resisting property |
| CN106637338A (en) * | 2016-12-06 | 2017-05-10 | 上海英汇科技发展有限公司 | Anodic oxidation process for automobile aluminum alloy baggage holders |
| CN108624935A (en) * | 2017-03-21 | 2018-10-09 | 上海铝通化学科技有限公司 | A kind of closing process of alkali resistance confining liquid and aluminum alloy surface oxidation film |
| CN109183122A (en) * | 2018-10-15 | 2019-01-11 | 燕山大学 | A kind of aluminum or aluminum alloy anode oxide film confining liquid and its application |
| CN109763160A (en) * | 2019-01-17 | 2019-05-17 | 科盈创新科技(广州)有限公司 | A kind of pre- sealer and processing method for alumina |
| CN111206275A (en) * | 2020-02-17 | 2020-05-29 | 王勇 | Strong acid and strong basicity resistant hole sealing treatment method for aluminum alloy anodic oxide film |
| CN111206275B (en) * | 2020-02-17 | 2021-04-06 | 王勇 | Strong acid and strong basicity resistant hole sealing treatment method for aluminum alloy anodic oxide film |
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