CN108486561A - Aluminium alloy corrosion-resistance treatment liquid and its application process - Google Patents
Aluminium alloy corrosion-resistance treatment liquid and its application process Download PDFInfo
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- CN108486561A CN108486561A CN201810370968.1A CN201810370968A CN108486561A CN 108486561 A CN108486561 A CN 108486561A CN 201810370968 A CN201810370968 A CN 201810370968A CN 108486561 A CN108486561 A CN 108486561A
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- aluminium alloy
- treatment liquid
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- resistance treatment
- corrosion
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 88
- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- -1 rare-earth salts Chemical class 0.000 claims abstract description 56
- 239000002253 acid Substances 0.000 claims abstract description 37
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 239000000839 emulsion Substances 0.000 claims abstract description 30
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000001590 oxidative effect Effects 0.000 claims abstract description 24
- 229910000077 silane Inorganic materials 0.000 claims abstract description 24
- 239000007800 oxidant agent Substances 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 23
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 22
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 17
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims abstract description 17
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 17
- 239000011737 fluorine Substances 0.000 claims abstract description 17
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 16
- 235000018660 ammonium molybdate Nutrition 0.000 claims abstract description 16
- 239000011609 ammonium molybdate Substances 0.000 claims abstract description 16
- 229940010552 ammonium molybdate Drugs 0.000 claims abstract description 16
- 235000019441 ethanol Nutrition 0.000 claims abstract description 16
- 239000011591 potassium Substances 0.000 claims abstract description 16
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 16
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000007797 corrosion Effects 0.000 claims abstract description 15
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- MFXMOUUKFMDYLM-UHFFFAOYSA-L zinc;dihydrogen phosphate Chemical compound [Zn+2].OP(O)([O-])=O.OP(O)([O-])=O MFXMOUUKFMDYLM-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 claims description 18
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 14
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical class COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 11
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical class CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- VYLVYHXQOHJDJL-UHFFFAOYSA-K cerium trichloride Chemical compound Cl[Ce](Cl)Cl VYLVYHXQOHJDJL-UHFFFAOYSA-K 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 9
- 239000004094 surface-active agent Substances 0.000 claims description 9
- 229910004664 Cerium(III) chloride Inorganic materials 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 7
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 238000005292 vacuum distillation Methods 0.000 claims description 6
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims 1
- WFKAJVHLWXSISD-UHFFFAOYSA-N isobutyramide Chemical class CC(C)C(N)=O WFKAJVHLWXSISD-UHFFFAOYSA-N 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 239000008367 deionised water Substances 0.000 description 25
- 229910021641 deionized water Inorganic materials 0.000 description 25
- 229910052782 aluminium Inorganic materials 0.000 description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 22
- 239000004411 aluminium Substances 0.000 description 21
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical class CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 10
- 229910052737 gold Inorganic materials 0.000 description 10
- 239000010931 gold Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 229910021529 ammonia Inorganic materials 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- QTRZERXWHHQTNN-UHFFFAOYSA-N gold;propan-2-one Chemical compound [Au].CC(C)=O QTRZERXWHHQTNN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000011651 chromium Substances 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 3
- 150000004702 methyl esters Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical class CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241001137251 Corvidae Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical group F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 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
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical group Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002426 superphosphate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
- C23C22/44—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
Abstract
The present invention relates to a kind of aluminium alloy corrosion-resistance treatment liquid and its application process, the preparation method of the aluminium alloy corrosion-resistance treatment liquid includes the following steps：(1) each raw material is weighed by weight；(2) it is that 200 400r/min stir 10 30min with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid, it is that 200 400r/min stir 5 10min that rare-earth salts, which is added, with rotating speed, add oxidant, sodium tungstate, ammonium fluoroborate, potassium fluosilicate, zinc dihydrogen phosphate, ammonium molybdate, Gemini surface active, water with rotating speed be 200 400r/min stir 15 25min be uniformly mixed to get.Aluminium alloy corrosion-resistance treatment liquid of the present invention and its application process, using practical value and functional component as index, work out the optimum process condition of aluminium alloy corrosion-resistance treatment liquid, it is formulated novel in design, reasonable, the treatment effeciency for the treatment of fluid can be significantly improved, and significantly improves the corrosion resistance of aluminium alloy.
Description
Technical field
The present invention relates to a kind for the treatment of fluids, specifically, being related to a kind of aluminium alloy corrosion-resistance treatment liquid and its application side
Method.
Background technology
Aluminium alloy is most widely used one kind non-ferrous metal structural material in industry, in Aeronautics and Astronautics, automobile, machinery
It has been widely applied in manufacture, ship and chemical industry.
Aluminium alloy is sent out usually using the alloying elements such as copper, zinc, manganese, silicon, magnesium, early 20th century by German Alfred Wilm
It is bright, aircraft development is helped greatly, primary big Postwar German al alloy component is listed in state secret.It is compared with common carbon steel
There is lighter and corrosion resistant performance, but corrosion resistance is not so good as fine aluminium.The surface of aluminium alloy can be formed under clean, dry environment
The oxide layer of protection.
The application of aluminium is increasingly extensive, and requirement of the people to aluminium is also being continuously improved, and not only requires aluminium to have higher
Mechanical performance also requires have good appearance and corrosion resisting property, and after the elements such as magnesium, zinc, copper are added, tensile strength carries aluminium alloy
Height, and corrosion resistance reduces.
In order to improve corrosion resistance, currently, the method for relatively conventional chemical composition coating has following three kinds：
1, chromaking, this method were invented in 1945 by american chemical paint company, also referred to as A Luoding oxidizing process, after by Britain
ICI Imperial Chemical Industries promote the use of, and claim the Crows A Luo nurse method.Its main component is：Using chromic anhydride as oxidant and film forming agent, it is subject to
The additives such as fluoride form a film as fine and close chromate, there is good corrosion resistance.But this method is formed by conversion
Film can cause human body serious harm containing Cr VI, can also cause seriously to pollute to environment.
2, phosphorus chromaking, also known as green chromaking, phosphorus chromaking began to use early in 1945 in aluminium surface processing, so far, still
In use.Phosphorus chromaking film is derived from trivalent chromium, and main component is：Superphosphate, acidity or alkaline chromate, complexing agent,
Fluoride.This method is with chromaking method the difference is that phosphate reduces pollution, and smart in technique instead of chromate
The process of the acid deoxidation effect of letter.But in this method, phosphorus chromaking film corrosion resistance is not so good as chromaking film, so using
Certain limitation is received, moreover, also not completely disengaging the pollution of Cr VI.
3, colourless Chrome-free chemical composition coating method is to be formulated based on fluorine zirconic acid, nitric acid, boric acid, developed in succession
A series of conversion embrane methods.The surface conversion coating of treated in this way aluminum or aluminum alloy is free of chromium, will not be to human body and ring
Border causes damages, but the corrosion resistance that forms a film is poor.
Invention content
The purpose of the present invention is to propose to a kind of aluminium alloy corrosion-resistance treatment liquid and its application process, which is Chrome-free
Treatment fluid, and there is good corrosion resistance.
The present invention is achieved through the following technical solutions：
A kind of preparation method of aluminium alloy corrosion-resistance treatment liquid, includes the following steps：
(1) each raw material is weighed by weight：1-2 parts of rare-earth salts, 0.3-0.8 parts of fluorine zirconic acid, 0.2-0.6 parts of fluotitanic acid, tungsten
Sour sodium 0.5-1.5 parts, 2-5 parts of ammonium fluoroborate, 1-3 parts of zinc dihydrogen phosphate, 1-3 parts of oxidant, 1.5-3 parts of potassium fluosilicate, silane
1-4 parts, 25-35 parts of ethyl alcohol, 0.5-1.5 parts of ammonium molybdate, 0.05-0.25 parts of Gemini surface active, 4-10 parts of water-based emulsion,
40-60 parts of water；
(2) it is that 200-400r/min stirs 10- with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid
30min, it is that 200-400r/min stirs 5-10min to add rare-earth salts with rotating speed, adds oxidant, sodium tungstate, fluoboric acid
Ammonium, potassium fluosilicate, zinc dihydrogen phosphate, ammonium molybdate, Gemini surface active, water are that 200-400r/min stirs 15- with rotating speed
25min be uniformly mixed to get.
The oxidant is hydrogen peroxide or Peracetic acid or sodium peroxide.
The water-based emulsion is aqueous epoxy resin emulsion.
The silane is N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
Preferably, the silane is modified N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
The preparation method of modified N- (2- the aminoethyls) -3- aminopropyl trimethoxysilanes is：By 11-16g N- (2-
Aminoethyl) -3- aminopropyl trimethoxysilanes, 3-6g triethylamines, 100-150mL DMAC N,N' dimethyl acetamides be added three mouthfuls burning
In condition of nitrogen gas and temperature be 0-5 DEG C it is that 4-8g diethyl phosphorous acyls are added dropwise under 50-150r/min stirring conditions with rotating speed in bottle
It with rotating speed is that 50-150r/min stirrings are anti-that chlorine, 2-4g methyl acrylates, which in condition of nitrogen gas and temperature are 0-5 DEG C after being added dropwise,
30-70min is answered, 45-65 DEG C of insulation reaction 3-7h under a nitrogen atmosphere is then heated to, is filtered, vacuum distillation removal solvent, i.e.,
.
The filter cloth aperture of the filtering is 100-400 mesh.
The rare-earth salts is cerous chloride or cerous nitrate.
The Gemini surface active is nonionic polyurethane Gemini surface active and/or octadecyl
Gemini phosphate ester surfactants.Further, the Gemini surface active is by nonionic polyurethane Gemini tables
Face activating agent, octadecyl Gemini phosphate ester surfactants are 1 in mass ratio：(2-3) is formed.
The present invention also provides a kind of aluminium alloy corrosion-resistance treatment liquids, by aforementioned aluminium alloy corrosion-resistance treatment liquid method
It is prepared.
The present invention also provides the applications of the aluminium alloy corrosion-resistance treatment liquid, specially：Aluminium alloy is put into acetone
It is rinsed with water after middle ultrasound 20-50s cleanings clean；It places into the sodium hydrate aqueous solution of 0.05-0.15mol/L and is in temperature
35-55 DEG C of immersion 5-15min, is then rinsed with water clean；It in temperature is 35-55 that aluminium alloy, which is placed into, in corrosion-resistance treatment liquid
DEG C impregnate 5-15min, be then rinsed with water it is clean, with 70-80 DEG C of hot blast drying.
Compared with prior art, the present invention has the advantages that following prominent and effect：
Aluminium alloy corrosion-resistance treatment liquid of the present invention and its application process are ground using practical value and functional component as index
Study carefully the optimum process condition for aluminium alloy corrosion-resistance treatment liquid, formula is novel in design, reasonable, can significantly improve treatment fluid
Treatment effeciency, and significantly improve the corrosion resistance of aluminium alloy.
Specific implementation mode
Below by specific implementation mode, the present invention is further described.
The corrosion resistance of aluminium alloy after corrosion-resistance treatment is tested：Aluminium alloy after corrosion-resistance treatment is used into electrochemistry work
It stands (model：CHI660D the corrosive nature of aluminium alloy extrusions) is analyzed, reference electrode is saturated calomel electrode (SCE), auxiliary electricity
Extremely Pt electrodes, using 3.5% sodium chloride solution as corrosive medium, pumping signal is sine wave, frequency 105-10-2Hz is surveyed
Electrochemical impedance is tried, electrochemical impedance value is bigger, and corrosion resistance is better.
The wear-resisting property of aluminium alloy after corrosion-resistance treatment is tested：Aluminium alloy after corrosion-resistance treatment is used into fretting wear
Testing machine (Switzerland CSEM company's T HT07-135 high temperature friction and wears testing machine) studies wearability, and being 25 DEG C in temperature is tried
It tests, the ZrO that friction bead is diameter 6mm2Ceramic wear-resisting ball, friction velocity 4cm/s, load 5N, friction length 8mm, examination
Sample rubs 350 turns, the quality m of the aluminium alloy after corrosion-resistance treatment before and after record friction test1And m2, mass loss rate is calculated,
Mass loss rate=(m1-m2)/m1× 100%.
The Brinell hardness of aluminium alloy after corrosion-resistance treatment is tested：It is carried out with reference to GB/T231.1-2009, tester
The Brinell hardness tester for the model HB-3000B that device is provided using get Chuan test apparatuses Co., Ltd of Laizhou City, ball indenter diameter
For 10mm, load 3000kg.
Fluorine zirconic acid in embodiment, No. CAS：12021-95-3.
Fluotitanic acid in embodiment, No. CAS：17439-11-1.
Sodium tungstate in embodiment, No. CAS：13472-45-2.
Ammonium fluoroborate in embodiment, No. CAS：13826-83-0.
Zinc dihydrogen phosphate in embodiment, No. CAS：13598-37-3.
Nonionic polyurethane Gemini surface active is according to application No. is in 201610188278.5 in embodiment
In state's patent prepared by method shown in example IV.
Potassium fluosilicate in embodiment, No. CAS：16871-90-2.
Ethyl alcohol in embodiment, No. CAS：64-17-5.
Ammonium molybdate in embodiment, No. CAS：13106-76-8.
In embodiment octadecyl Gemini phosphate ester surfactants according to Han Hui master thesis《Long carbon chain
The synthesis of Gemini phosphate ester surfactants and performance study》Middle chapter 3 experimental section and chapter 5 summarize the best of determination
It is prepared by reaction condition.
Hydrogen peroxide in embodiment, No. CAS：7722-84-1.
N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes in embodiment, No. CAS：1760-24-3.
Triethylamine in embodiment, No. CAS：121-44-8.
N,N-dimethylacetamide in embodiment, No. CAS：127-19-5.
Diethyl phosphorous acyl chlorides in embodiment, No. CAS：589-57-1.
Methyl acrylate in embodiment, No. CAS：96-33-3.
Cerous chloride in embodiment, No. CAS：7790-86-5.
Aluminium alloy is the aluminium alloy that the trade mark that Shanghai river ferrous metal Science and Technology Ltd. provides is 2024, brand in embodiment
For southwestern aluminium.
Aqueous epoxy resin emulsion is according to embodiment in the Chinese patent application No. is 201110123763.1 2 in embodiment
It is prepared by shown method.
Embodiment 1
The preparation method of aluminium alloy corrosion-resistance treatment liquid, includes the following steps：
(1) each raw material is weighed by weight：1.5 parts of rare-earth salts, 0.6 part of fluorine zirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate,
3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, 2 parts of oxidant, 2 parts of potassium fluosilicate, 2.5 parts of silane, 30 parts of ethyl alcohol, ammonium molybdate 1
Part, 0.15 part of Gemini surface active, 6 parts of water-based emulsion, 50 parts of deionized water；
(2) it is that 300r/min stirs 20min with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid, adds
Rare-earth salts is that 200r/min stirs 6min with rotating speed, adds oxidant, sodium tungstate, ammonium fluoroborate, potassium fluosilicate, biphosphate
Zinc, ammonium molybdate, Gemini surface active, deionized water are that 300r/min stirrings 20min is uniformly mixed to get aluminium conjunction with rotating speed
Gold corrosion-resistance treatment liquid.
The oxidant is hydrogen peroxide.
The water-based emulsion is aqueous epoxy resin emulsion.
The silane is N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
The rare-earth salts is cerous chloride.
The Gemini surface active is octadecyl Gemini phosphate ester surfactants.
A kind of application process of aluminium alloy corrosion-resistance treatment liquid, the aluminium alloy of 50mm × 50mm × 4mm is put into
Aluminium is closed with deionized water after ultrasound 30s cleanings in the case where ultrasonic power is 250W, supersonic frequency is 40kHz in 1000mL acetone
Gold is rinsed well；It places into the sodium hydrate aqueous solution of 1000mL, 0.1mol/L and impregnates 8min in temperature for 45 DEG C, then use
Deionized water rinses aluminium alloy well；It places into aluminium alloy corrosion-resistance treatment liquid and impregnates 10min in temperature for 45 DEG C, so
Aluminium alloy is rinsed well with deionized water afterwards, is dried up aluminium alloy with 75 DEG C of hot wind, obtains the conjunction of the aluminium after corrosion-resistance treatment
Gold.
Embodiment 2
The preparation method of aluminium alloy corrosion-resistance treatment liquid, includes the following steps：
(1) each raw material is weighed by weight：1.5 parts of rare-earth salts, 0.6 part of fluorine zirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate,
3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, 2 parts of oxidant, 2 parts of potassium fluosilicate, 2.5 parts of silane, 30 parts of ethyl alcohol, ammonium molybdate 1
Part, 0.15 part of Gemini surface active, 6 parts of water-based emulsion, 50 parts of deionized water；
(2) it is that 300r/min stirs 20min with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid, adds
Rare-earth salts is that 200r/min stirs 6min with rotating speed, adds oxidant, sodium tungstate, ammonium fluoroborate, potassium fluosilicate, biphosphate
Zinc, ammonium molybdate, Gemini surface active, deionized water are that 300r/min stirrings 20min is uniformly mixed to get aluminium conjunction with rotating speed
Gold corrosion-resistance treatment liquid.
The oxidant is hydrogen peroxide.
The water-based emulsion is aqueous epoxy resin emulsion.
The silane is modified N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
The preparation method of modified N- (2- the aminoethyls) -3- aminopropyl trimethoxysilanes is：By 14.2g N- (2- ammonia
Ethyl) -3- aminopropyl trimethoxysilanes, 4.6g triethylamines, 120mL n,N-dimethylacetamide be added three-necked flask in,
It with rotating speed is that 5.8g diethyl phosphorous acyl chlorides, 3.1g propylene are added dropwise under 120r/min stirring conditions that condition of nitrogen gas and temperature, which are 1 DEG C,
The rate of addition of sour methyl esters, the diethyl phosphorous acyl chlorides and methyl acrylate is 0.02g/s, in nitrogen item after being added dropwise
It with rotating speed is that 120r/min is stirred to react 50min that part and temperature, which are 1 DEG C, then heats to 55 DEG C of insulation reactions under a nitrogen atmosphere
5h, with 180 mesh filter-cloth filterings, filtrate is through vacuum distillation removal solvent n,N-dimethylacetamide to get modified N- (2- ammonia second
Base) -3- aminopropyl trimethoxysilanes.
The rare-earth salts is cerous chloride.
The Gemini surface active is octadecyl Gemini phosphate ester surfactants.
A kind of application process of aluminium alloy corrosion-resistance treatment liquid, the aluminium alloy of 50mm × 50mm × 4mm is put into
Aluminium is closed with deionized water after ultrasound 30s cleanings in the case where ultrasonic power is 250W, supersonic frequency is 40kHz in 1000mL acetone
Gold is rinsed well；It places into the sodium hydrate aqueous solution of 1000mL, 0.1mol/L and impregnates 8min in temperature for 45 DEG C, then use
Deionized water rinses aluminium alloy well；It places into aluminium alloy corrosion-resistance treatment liquid and impregnates 10min in temperature for 45 DEG C, so
Aluminium alloy is rinsed well with deionized water afterwards, is dried up aluminium alloy with 75 DEG C of hot wind, obtains the conjunction of the aluminium after corrosion-resistance treatment
Gold.
Embodiment 3
The preparation method of aluminium alloy corrosion-resistance treatment liquid, includes the following steps：
(1) each raw material is weighed by weight：1.5 parts of rare-earth salts, 0.6 part of fluorine zirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate,
3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, 2 parts of oxidant, 2 parts of potassium fluosilicate, 2.5 parts of silane, 30 parts of ethyl alcohol, ammonium molybdate 1
Part, 0.15 part of Gemini surface active, 6 parts of water-based emulsion, 50 parts of deionized water；
(2) it is that 300r/min stirs 20min with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid, adds
Rare-earth salts is that 200r/min stirs 6min with rotating speed, adds oxidant, sodium tungstate, ammonium fluoroborate, potassium fluosilicate, biphosphate
Zinc, ammonium molybdate, Gemini surface active, deionized water are that 300r/min stirrings 20min is uniformly mixed to get aluminium conjunction with rotating speed
Gold corrosion-resistance treatment liquid.
The oxidant is hydrogen peroxide.
The water-based emulsion is aqueous epoxy resin emulsion.
The silane is modified N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
The preparation method of modified N- (2- the aminoethyls) -3- aminopropyl trimethoxysilanes is：By 14.2g N- (2- ammonia
Ethyl) -3- aminopropyl trimethoxysilanes, 4.6g triethylamines, 120mL n,N-dimethylacetamide be added three-necked flask in,
Condition of nitrogen gas and temperature be 1 DEG C with rotating speed be under 120r/min stirring conditions dropwise addition 5.8g diethyl phosphorous acyl chlorides, the diethyl
The rate of addition of base phosphorous acyl chlorides is 0.02g/s, after being added dropwise condition of nitrogen gas and temperature be 1 DEG C with rotating speed for 120r/
Min is stirred to react 50min, then heats to 55 DEG C of insulation reaction 5h under a nitrogen atmosphere, with 180 mesh filter-cloth filterings, filtrate warp
Vacuum distillation removal solvent n,N-dimethylacetamide is to get modified N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
The rare-earth salts is cerous chloride.
The Gemini surface active is octadecyl Gemini phosphate ester surfactants.
A kind of application process of aluminium alloy corrosion-resistance treatment liquid, the aluminium alloy of 50mm × 50mm × 4mm is put into
Aluminium is closed with deionized water after ultrasound 30s cleanings in the case where ultrasonic power is 250W, supersonic frequency is 40kHz in 1000mL acetone
Gold is rinsed well；It places into the sodium hydrate aqueous solution of 1000mL, 0.1mol/L and impregnates 8min in temperature for 45 DEG C, then use
Deionized water rinses aluminium alloy well；It places into aluminium alloy corrosion-resistance treatment liquid and impregnates 10min in temperature for 45 DEG C, so
Aluminium alloy is rinsed well with deionized water afterwards, is dried up aluminium alloy with 75 DEG C of hot wind, obtains the conjunction of the aluminium after corrosion-resistance treatment
Gold.
Embodiment 4
The preparation method of aluminium alloy corrosion-resistance treatment liquid, includes the following steps：
(1) each raw material is weighed by weight：1.5 parts of rare-earth salts, 0.6 part of fluorine zirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate,
3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, 2 parts of oxidant, 2 parts of potassium fluosilicate, 2.5 parts of silane, 30 parts of ethyl alcohol, ammonium molybdate 1
Part, 0.15 part of Gemini surface active, 6 parts of water-based emulsion, 50 parts of deionized water；
(2) it is that 300r/min stirs 20min with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid, adds
Rare-earth salts is that 200r/min stirs 6min with rotating speed, adds oxidant, sodium tungstate, ammonium fluoroborate, potassium fluosilicate, biphosphate
Zinc, ammonium molybdate, Gemini surface active, deionized water are that 300r/min stirrings 20min is uniformly mixed to get aluminium conjunction with rotating speed
Gold corrosion-resistance treatment liquid.
The oxidant is hydrogen peroxide.
The water-based emulsion is aqueous epoxy resin emulsion.
The silane is modified N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
The preparation method of modified N- (2- the aminoethyls) -3- aminopropyl trimethoxysilanes is：By 14.2g N- (2- ammonia
Ethyl) -3- aminopropyl trimethoxysilanes, 4.6g triethylamines, 120mL n,N-dimethylacetamide be added three-necked flask in,
It with rotating speed is that 5.8g diethyl phosphorous acyl chlorides, 3.1g propylene are added dropwise under 120r/min stirring conditions that condition of nitrogen gas and temperature, which are 1 DEG C,
The rate of addition of sour methyl esters, the diethyl phosphorous acyl chlorides and methyl acrylate is 0.02g/s, in nitrogen item after being added dropwise
It with rotating speed is that 120r/min is stirred to react 50min that part and temperature, which are 1 DEG C, then heats to 55 DEG C of insulation reactions under a nitrogen atmosphere
5h, with 180 mesh filter-cloth filterings, filtrate is through vacuum distillation removal solvent n,N-dimethylacetamide to get modified N- (2- ammonia second
Base) -3- aminopropyl trimethoxysilanes.
The rare-earth salts is cerous chloride.
The Gemini surface active is nonionic polyurethane Gemini surface active.
A kind of application process of aluminium alloy corrosion-resistance treatment liquid, the aluminium alloy of 50mm × 50mm × 4mm is put into
Aluminium is closed with deionized water after ultrasound 30s cleanings in the case where ultrasonic power is 250W, supersonic frequency is 40kHz in 1000mL acetone
Gold is rinsed well；It places into the sodium hydrate aqueous solution of 1000mL, 0.1mol/L and impregnates 8min in temperature for 45 DEG C, then use
Deionized water rinses aluminium alloy well；It places into aluminium alloy corrosion-resistance treatment liquid and impregnates 10min in temperature for 45 DEG C, so
Aluminium alloy is rinsed well with deionized water afterwards, is dried up aluminium alloy with 75 DEG C of hot wind, obtains the conjunction of the aluminium after corrosion-resistance treatment
Gold.
Embodiment 5
The preparation method of aluminium alloy corrosion-resistance treatment liquid, includes the following steps：
(1) each raw material is weighed by weight：1.5 parts of rare-earth salts, 0.6 part of fluorine zirconic acid, 0.4 part of fluotitanic acid, 1 part of sodium tungstate,
3.5 parts of ammonium fluoroborate, 2 parts of zinc dihydrogen phosphate, 2 parts of oxidant, 2 parts of potassium fluosilicate, 2.5 parts of silane, 30 parts of ethyl alcohol, ammonium molybdate 1
Part, 0.15 part of Gemini surface active, 6 parts of water-based emulsion, 50 parts of deionized water；
(2) it is that 300r/min stirs 20min with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid, adds
Rare-earth salts is that 200r/min stirs 6min with rotating speed, adds oxidant, sodium tungstate, ammonium fluoroborate, potassium fluosilicate, biphosphate
Zinc, ammonium molybdate, Gemini surface active, deionized water are that 300r/min stirrings 20min is uniformly mixed to get aluminium conjunction with rotating speed
Gold corrosion-resistance treatment liquid.
The oxidant is hydrogen peroxide.
The water-based emulsion is aqueous epoxy resin emulsion.
The silane is modified N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
The preparation method of modified N- (2- the aminoethyls) -3- aminopropyl trimethoxysilanes is：By 14.2g N- (2- ammonia
Ethyl) -3- aminopropyl trimethoxysilanes, 4.6g triethylamines, 120mL n,N-dimethylacetamide be added three-necked flask in,
It with rotating speed is that 5.8g diethyl phosphorous acyl chlorides, 3.1g propylene are added dropwise under 120r/min stirring conditions that condition of nitrogen gas and temperature, which are 1 DEG C,
The rate of addition of sour methyl esters, the diethyl phosphorous acyl chlorides and methyl acrylate is 0.02g/s, in nitrogen item after being added dropwise
It with rotating speed is that 120r/min is stirred to react 50min that part and temperature, which are 1 DEG C, then heats to 55 DEG C of insulation reactions under a nitrogen atmosphere
5h, with 180 mesh filter-cloth filterings, filtrate is through vacuum distillation removal solvent n,N-dimethylacetamide to get modified N- (2- ammonia second
Base) -3- aminopropyl trimethoxysilanes.
The rare-earth salts is cerous chloride.
The Gemini surface active is by nonionic polyurethane Gemini surface active, octadecyl Gemini phosphorus
Acid ester surface active agent is 1 in mass ratio：2 mix.
A kind of application process of aluminium alloy corrosion-resistance treatment liquid, the aluminium alloy of 50mm × 50mm × 4mm is put into
Aluminium is closed with deionized water after ultrasound 30s cleanings in the case where ultrasonic power is 250W, supersonic frequency is 40kHz in 1000mL acetone
Gold is rinsed well；It places into the sodium hydrate aqueous solution of 1000mL, 0.1mol/L and impregnates 8min in temperature for 45 DEG C, then use
Deionized water rinses aluminium alloy well；It places into aluminium alloy corrosion-resistance treatment liquid and impregnates 10min in temperature for 45 DEG C, so
Aluminium alloy is rinsed well with deionized water afterwards, is dried up aluminium alloy with 75 DEG C of hot wind, obtains the conjunction of the aluminium after corrosion-resistance treatment
Gold.Aluminium alloy capability test result after corrosion-resistance treatment：Brinell hardness (HBS) be 118, electrochemical impedance value be 2815k Ω/
cm2, mass loss rate 2.3%.
Test case 1
Aluminium alloy capability after the corrosion-resistance treatment obtained to embodiment 1-4 is tested, and specific test result is shown in Table 1.
Table 1：Test result table
Aluminium alloy corrosion-resistance treatment liquid of the present invention and its application process are ground using practical value and functional component as index
Study carefully under Different Preparation parameter, the variation of aluminium alloy corrosion-resistance treatment liquid practical value and functional component index, to grind
Study carefully the optimum process condition for aluminium alloy corrosion-resistance treatment liquid；With corrosion-resistance treatment liquid, its formula designs obtained aluminium alloy
It is novel, reasonable, the treatment effeciency for the treatment of fluid can be significantly improved, and significantly improve the corrosion resistance of aluminium alloy.
Claims (10)
1. a kind of preparation method of aluminium alloy corrosion-resistance treatment liquid, which is characterized in that include the following steps：
(1) each raw material is weighed by weight：1-2 parts of rare-earth salts, 0.3-0.8 parts of fluorine zirconic acid, 0.2-0.6 parts of fluotitanic acid, sodium tungstate
0.5-1.5 parts, 2-5 parts of ammonium fluoroborate, 1-3 parts of zinc dihydrogen phosphate, 1-3 parts of oxidant, 1.5-3 parts of potassium fluosilicate, silane 1-4
Part, 25-35 parts of ethyl alcohol, 0.5-1.5 parts of ammonium molybdate, 0.05-0.25 parts of Gemini surface active, 4-10 parts of water-based emulsion, water
40-60 parts；
(2) it is 200-400r/min stirring 10-30min with rotating speed by water-based emulsion, ethyl alcohol, silane, fluorine zirconic acid, fluotitanic acid, then
It is that 200-400r/min stirs 5-10min that rare-earth salts, which is added, with rotating speed, adds oxidant, sodium tungstate, ammonium fluoroborate, fluosilicic acid
Potassium, zinc dihydrogen phosphate, ammonium molybdate, Gemini surface active, water are that 200-400r/min stirs 15-25min mixing with rotating speed
Uniformly to get.
2. the preparation method of aluminium alloy corrosion-resistance treatment liquid as described in claim 1, it is characterised in that：The oxidant is
Hydrogen peroxide or Peracetic acid or sodium peroxide.
3. the preparation method of aluminium alloy corrosion-resistance treatment liquid as described in claim 1, it is characterised in that：The water-based emulsion
For aqueous epoxy resin emulsion.
4. the preparation method of aluminium alloy corrosion-resistance treatment liquid as described in claim 1, it is characterised in that：The silane is N-
(2- aminoethyls) -3- aminopropyl trimethoxysilanes.
5. the preparation method of aluminium alloy corrosion-resistance treatment liquid as described in claim 1, it is characterised in that：The silane is to change
Property N- (2- aminoethyls) -3- aminopropyl trimethoxysilanes.
6. the preparation method of aluminium alloy corrosion-resistance treatment liquid as claimed in claim 5, it is characterised in that：The modified N-
The preparation method of (2- aminoethyls) -3- aminopropyl trimethoxysilanes is：By 11-16g N- (2- aminoethyls) -3- aminopropyls three
Methoxy silane, 3-6g triethylamines, 100-150mLN, N- dimethylacetylamides are added in three-necked flask, in condition of nitrogen gas and temperature
It with rotating speed is dropwise addition 4-8g diethyl phosphorous acyl chlorides, 2-4g methyl acrylates under 50-150r/min stirring conditions that degree, which be 0-5 DEG C,
In condition of nitrogen gas and temperature be 0-5 DEG C after being added dropwise with rotating speed it is that 50-150r/min is stirred to react 30-70min, then heats up
To 45-65 DEG C of insulation reaction 3-7h under a nitrogen atmosphere, filtering, vacuum distillation removal solvent to get.
7. the preparation method of aluminium alloy corrosion-resistance treatment liquid as described in claim 1, it is characterised in that：The rare-earth salts is
Cerous chloride or cerous nitrate.
8. the preparation method of aluminium alloy corrosion-resistance treatment liquid as described in claim 1, it is characterised in that：The Gemini tables
Face activating agent is nonionic polyurethane Gemini surface active and/or octadecyl Gemini phosphate ester surfactants.
9. a kind of aluminium alloy corrosion-resistance treatment liquid, by the aluminium alloy described in any one of claim 1-8 with corrosion-resistant
Reason liquid and preparation method thereof is prepared.
10. the application of aluminium alloy corrosion-resistance treatment liquid as claimed in claim 9, which is characterized in that aluminium alloy is put into third
It is rinsed with water after ultrasound 20-50s cleanings in ketone clean；It places into the sodium hydrate aqueous solution of 0.05-0.15mol/L in temperature
For 35-55 DEG C of immersion 5-15min, then it is rinsed with water clean；It in temperature is 35- that aluminium alloy, which is placed into, in corrosion-resistance treatment liquid
55 DEG C of immersion 5-15min, are then rinsed with water totally, with 70-80 DEG C of hot blast drying.
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Application publication date: 20180904 |