CN103469276B - A kind of method improving aluminum anodized film acid-alkali-corrosive-resisting performance - Google Patents
A kind of method improving aluminum anodized film acid-alkali-corrosive-resisting performance Download PDFInfo
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- CN103469276B CN103469276B CN201310423340.0A CN201310423340A CN103469276B CN 103469276 B CN103469276 B CN 103469276B CN 201310423340 A CN201310423340 A CN 201310423340A CN 103469276 B CN103469276 B CN 103469276B
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 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
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 27
- 239000008393 encapsulating agent Substances 0.000 claims abstract description 23
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 21
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- -1 nickelous fluoride salt Chemical class 0.000 claims abstract description 7
- 239000010936 titanium Substances 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 23
- 238000007254 oxidation reaction Methods 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005238 degreasing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 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
- 238000005516 engineering process Methods 0.000 abstract description 16
- 239000003513 alkali Substances 0.000 abstract description 14
- 230000007797 corrosion Effects 0.000 abstract description 12
- 238000005260 corrosion Methods 0.000 abstract description 12
- 238000012360 testing method Methods 0.000 abstract description 8
- 239000002253 acid Substances 0.000 abstract description 7
- 238000007743 anodising Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000001117 sulphuric acid Substances 0.000 abstract description 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000003628 erosive effect Effects 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
- 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 1
- 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009472 formulation Methods 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
- YOYLLRBMGQRFTN-SMCOLXIQSA-N norbuprenorphine Chemical compound C([C@@H](NCC1)[C@]23CC[C@]4([C@H](C3)C(C)(O)C(C)(C)C)OC)C3=CC=C(O)C5=C3[C@@]21[C@H]4O5 YOYLLRBMGQRFTN-SMCOLXIQSA-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
- 239000000565 sealant Substances 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 present invention relates to a kind of method improving aluminum anodized film acid-alkali-corrosive-resisting performance, in the method for the invention, aluminium alloy, after sulphuric acid anodizing, is the product of Ou get Mei Science and Technology Ltd. of Shenzhen at ODM SEAL R-15, ODM SEAL ARS-22, ODM SEAL ARS-40(R-15, ARS-22, ARS-40 successively) carry out sealing treatment in solution.Wherein ODM SEAL R-15 be the encapsulant of nickelous fluoride salt type, the ODM SEAL ARS-22 encapsulant that is titanium zirconates type, the ODM SEAL ARS-40 encapsulant that is alkaline silicate type.The effect that the present invention is useful: after aluminum anodized film is carried out aforesaid method sealing treatment, rete has excellent acidproof, alkali corrosion resistance performance, meets the acid resistance of automotive industry aluminium alloy anode oxide film, the test request of alkali resistance.
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 improving 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 gradually and has become the important composition parts of novel car body.Owing to often adopting pH value at the alkaline cleaner of 11-13.5 scope in automobile washing process, therefore the alkali corrosion resistance performance of automotive industry to the process of aluminium component surface has higher requirement.In prior art, the method for the closed aluminum anodized film of minority is only had to meet the requirement of automotive industry formulation.Such as, European patent EP 1873278 proposes and adopts the encapsulant of silicate to carry out aftertreatment to the aluminum anodized film carrying out sealing treatment, and the film surface obtained has higher alkali corrosion resistance performance; Patent DE1521664 proposes aluminum anodized film first in the alkaline aqueous solution of metal-containing salt, to carry out sealing treatment, adopts the aqueous solution of silicate to carry out aftertreatment subsequently.Alkali resistance through the aluminum anodized film of above-mentioned patented technology process is greatly improved, obtain good effect, but the aluminum alloy part after above-mentioned treatment process is first placed in dilute hydrochloric acid (pH ≈ 1) solution when 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 object of the present invention aims to provide a kind of aluminum anodized film that makes and has higher acid resistance and the treatment process of alkali resistance, and the method compared with prior art improves the acidproof of alumilite process rete and alkali corrosion resistance performance.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art existence, and a kind of method improving aluminum anodized film acid-alkali-corrosive-resisting performance is provided.
The object of the invention is to have come by following technical solution.The method of this raising aluminum anodized film acid-alkali-corrosive-resisting performance, after aluminium alloy is carried out conventional sulfuric acid anodic oxidation treatment, carry out successively nickelous fluoride salts solution normal temperature close, titanium zirconium salt solution normal temperature close, finally carry out the process of silicate solutions high temperature closure, after sealing treatment, alumilite process rete has excellent acidproof, alkali corrosion resistance performance, can by the acid resistance of automotive industry aluminum alloy spare part anode oxide film, alkali resistance test request.Concrete steps are as follows:
(1) degreasing: the weakly alkaline grease-removing agent ODM ALCLEAN10(of employing 30g/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen) skimming treatment under the condition of 50 DEG C;
(2) microetch: ODM ALETCH M(is the product of Ou get Mei Science and Technology Ltd. of Shenzhen in the alkaline micro-etching agent of 50g/l) at 50 DEG C of process 2min;
(3) except stain: the product by the aluminium alloy 100ml/L stain remover ODM DESMUT GE(through microetch process being Ou get Mei Science and Technology Ltd. of Shenzhen) normal temperature process 1min;
(4) anodic oxidation: the aluminium alloy through above-mentioned process is put into sulfuric acid oxidation groove and carries out anodic oxidation treatment, sulfuric acid concentration is 180g/L, current density 1-2A/dm
2, temperature 20 DEG C, oxidization time 30min;
(5) 1 is closed: the encapsulant ODM SEAL R-15(aluminium alloy after anodic oxidation treatment being placed in 5g/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen), under the condition of 20-30 DEG C, process 10-15min after washing;
(6) 2 are closed: the encapsulant ODM SEAL ARS-22(that the aluminium alloy after nickelous fluoride salts solution sealing treatment is placed in 100ml/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen), under the condition of 20-30 DEG C, process 10-15min after washing;
(7) 3 are closed: the encapsulant ODM SEAL ARS-40(that the aluminium alloy after step (5), (6) sealing treatment is placed in 40ml/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen), under the condition of 90-98 DEG C, process 15-20min after washing;
(8) pure water cleaning after sealing treatment, warm air drying.
Aluminium alloy carries out normal temperature sealing treatment after sulphuric acid anodizing in ODM SEAL R-15 solution, and wherein ODM SEAL R-15 is with the encapsulant of nickelous fluoride for main salt.After anode oxide film processes in encapsulant ODM SEAL R-15 solution, sealing treatment is carried out again in ODM SEAL ARS-22 solution, wherein ODM SEAL ARS-22 is with titanium, zirconates and the fluorochemical encapsulant for main composition, titanium, zirconates are preferably the salt such as hexafluorotitanic 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 3-7, titanium, zirconates concentration are 5-20g/L, fluoride concn is 1-10g/L.After anode oxide film processes in encapsulant ODM SEAL R-15, ODM SEAL ARS-22 solution, high temperature closure process is carried out 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 aforesaid method sealing treatment, and rete has excellent acidproof, alkali corrosion resistance performance, meets the acid resistance of automotive industry aluminium alloy anode oxide film, the test request of alkali resistance.
Embodiment
Below by embodiment, the present invention is further elaborated, and help is understood the present invention by embodiment better, 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 conventional sulfuric acid anodic oxidation treatment, carry out successively nickelous fluoride salts solution normal temperature close, titanium zirconium salt solution normal temperature close, finally carry out the process of silicate solutions high temperature closure, after sealing treatment, alumilite process rete has excellent acidproof, alkali corrosion resistance performance, can by the acid resistance of automotive industry aluminum alloy spare part anode oxide film, alkali resistance test request.Concrete steps are as follows:
(5) degreasing: the weakly alkaline grease-removing agent ODM ALCLEAN10(of employing 30g/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen) skimming treatment under the condition of 50 DEG C;
(6) microetch: ODM ALETCH M(is the product of Ou get Mei Science and Technology Ltd. of Shenzhen in the alkaline micro-etching agent of 50g/l) at 50 DEG C of process 2min;
(7) except stain: the product by the aluminium alloy 100ml/L stain remover ODM DESMUT GE(through microetch process being Ou get Mei Science and Technology Ltd. of Shenzhen) normal temperature process 1min;
(8) anodic oxidation: the aluminium alloy through above-mentioned process is put into sulfuric acid oxidation groove and carries out anodic oxidation treatment, sulfuric acid concentration is 180g/L, current density 1-2A/dm
2, temperature 20 DEG C, oxidization time 30min;
(5) 1 is closed: the encapsulant ODM SEAL R-15(aluminium alloy after anodic oxidation treatment being placed in 5g/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen), under the condition of 20-30 DEG C, process 10-15min after washing;
(6) 2 are closed: the encapsulant ODM SEAL ARS-22(that the aluminium alloy after nickelous fluoride salts solution sealing treatment is placed in 100ml/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen), under the condition of 20-30 DEG C, process 10-15min after washing;
(7) 3 are closed: the encapsulant ODM SEAL ARS-40(that the aluminium alloy after step (5), (6) sealing treatment is placed in 40ml/L is the product of Ou get Mei Science and Technology Ltd. of Shenzhen), under the condition of 90-98 DEG C, process 15-20min after washing;
(8) pure water cleaning after sealing treatment, warm air drying.
In the present invention, through degreasing, microetch, except the aluminium flake (1050A) after stain is 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 μm.Following sealing treatment is carried out to the aluminium flake through anodic oxidation treatment.Acid-alkali-corrosive-resisting test is carried out according to the method that table 1 provides.
Table 2 result shows, and aluminium flake is after three sealing treatment provided herein, and oxidation film layer can by acidproof, alkaline-resisting test, and rete has excellent acid-alkali-corrosive-resisting performance; And without titanium zirconates sealing treatment, only through fluoridizing the aluminium flake of nickel salt and silicate sealant process, not by acid-alkali-corrosive-resisting test, the corrosion resistance nature of rete is poor.
Embodiment 1
Close 1 process ODM SEAL R-15(5g/L, 25 DEG C, 10min)
Close 2 process ODM SEAL ARS-22(100ml/L, 25 DEG C, 10min, pH=4)
Close 3 process ODM SEAL ARS-40(40ml/L, 95 DEG C, 15min, pH=10)
Embodiment 2
Close 1 process ODM SEAL R-15(5g/L, 25 DEG C, 10min)
Close 2 process ODM SEAL ARS-22(100ml/L, 30 DEG C, 10min, pH=5)
Close 3 process ODM SEAL ARS-40(40ml/L, 95 DEG C, 15min, pH=10)
Embodiment 3
Close 1 process ODM SEAL R-15(5g/L, 25 DEG C, 15min)
Close 2 process ODM SEAL ARS-22(100ml/L, 30 DEG C, 10min, pH=6)
Close 3 process ODM SEAL ARS-40(40ml/L, 95 DEG C, 20min, pH=10)
Embodiment 4
Close 1 process ODM SEAL R-15(5g/L, 25 DEG C, 10min)
Close 2 process ODM SEAL ARS-40(40ml/L, 95 DEG C, 20min, pH=10)
Table 1 testing method
Table 2 result
| Embodiment | Acid corrosion is tested | Caustic corrosion is tested | Acid and alkali corrosion is tested |
| 1 | Rete outward appearance is unchanged | Rete outward appearance is unchanged | Rete outward appearance is unchanged |
| 2 | Rete outward appearance is unchanged | Rete outward appearance is unchanged | Rete outward appearance is unchanged |
| 3 | Rete outward appearance is unchanged | Rete outward appearance is unchanged | Rete outward appearance is unchanged |
| 4 | Rete outward appearance is unchanged | Rete slight erosion | Rete seriously corroded |
The above is only most preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Any those skilled in the art; do not departing within the scope of technical solution of the present invention; all above-mentioned technology contents can be utilized to make a little change; obtain the embodiment of equivalence; in every case be the content not departing from technical solution of the present invention; the simple modification done above embodiment according to technical spirit of the present invention, equivalent variations, all belong in the protection domain of technical solution of the present invention.
Claims (1)
1. one kind is improved the method for aluminum anodized film acid-alkali-corrosive-resisting performance, it is characterized in that: after aluminium alloy is carried out conventional sulfuric acid anodic oxidation treatment, carry out successively nickelous fluoride salts solution normal temperature close, titanium zirconium salt solution normal temperature close, finally carry out the process of silicate solutions high temperature closure, concrete steps are as follows:
(1) degreasing: weakly alkaline grease-removing agent ODM ALCLEAN 10 skimming treatment under the condition of 50 DEG C adopting 30g/L;
(2) microetch: ODM ALETCH M is at 50 DEG C of process 2min in the alkaline micro-etching agent of 50g/L;
(3) except stain: by the aluminium alloy 100mL/L stain remover ODM DESMUT GE normal temperature process 1min through microetch process;
(4) anodic oxidation: the aluminium alloy through above-mentioned process is put into sulfuric acid oxidation groove and carries out anodic oxidation treatment, sulfuric acid concentration is 180g/L, current density 1-2A/dm
2, temperature 20 DEG C, oxidization time 30min;
(5) 1 is closed: the encapsulant ODM SEAL R-15 aluminium alloy after anodic oxidation treatment being placed in 5g/L, processes 10-15min after washing under the condition of 20-30 DEG C;
(6) 2 are closed: the aluminium alloy after nickelous fluoride salts solution sealing treatment is placed in the encapsulant ODM SEAL ARS-22 of 100ml/L, 10-15min after washing is processed under the condition of 20-30 DEG C, wherein encapsulant ODM SEAL ARS-22 is with titanium, zirconates and the fluorochemical encapsulant for main composition, solution ph scope is 3-7, titanium, zirconates concentration are 5-20g/L, and fluoride concn is 1-10g/L;
(7) 3 are closed: the aluminium alloy after step (5), (6) sealing treatment is placed in the encapsulant ODM SEAL ARS-40 of 40mL/L, processes 15-20min after washing under the condition of 90-98 DEG C;
(8) pure water cleaning after sealing treatment, warm air drying.
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| CN104592801B (en) * | 2015-02-02 | 2016-09-07 | 四川大学 | A kind of aqueous from swimming paint wet film aftertreatment fluid |
| CN104862762B (en) * | 2015-04-27 | 2017-05-10 | 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 |
| 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 |
| 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 |
| 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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| CN102828216A (en) * | 2012-09-24 | 2012-12-19 | 西南石油大学 | Method for sealing holes of micro arc oxidation film at room temperature |
| CN103255462B (en) * | 2013-04-17 | 2016-01-27 | 佛山科学技术学院 | The environmental protection pore-sealing liquid of anodic oxidation aluminium section bar and be applied to the method for sealing of hole |
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