EP0356855B1 - Chromfreies Verfahren zur Vorbehandlung von Oberflächen aus Aluminium oder Aluminiumlegierungen vor einer Beschichtung mit organischen Materialien - Google Patents
Chromfreies Verfahren zur Vorbehandlung von Oberflächen aus Aluminium oder Aluminiumlegierungen vor einer Beschichtung mit organischen Materialien Download PDFInfo
- Publication number
- EP0356855B1 EP0356855B1 EP89115352A EP89115352A EP0356855B1 EP 0356855 B1 EP0356855 B1 EP 0356855B1 EP 89115352 A EP89115352 A EP 89115352A EP 89115352 A EP89115352 A EP 89115352A EP 0356855 B1 EP0356855 B1 EP 0356855B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aluminium
- atoms
- unit
- concentration
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011368 organic material Substances 0.000 title claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 21
- 229910052782 aluminium Inorganic materials 0.000 title claims description 21
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 7
- 239000004411 aluminium Substances 0.000 title claims 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
- 229910052804 chromium Inorganic materials 0.000 title 1
- 239000011651 chromium Substances 0.000 title 1
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000007864 aqueous solution Substances 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 239000006185 dispersion Substances 0.000 claims abstract description 20
- 239000003446 ligand Substances 0.000 claims abstract description 13
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 7
- 150000004820 halides Chemical class 0.000 claims abstract description 7
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- 150000001398 aluminium Chemical class 0.000 claims abstract 7
- 239000000243 solution Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 20
- 125000004432 carbon atom Chemical group C* 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 229920002125 Sokalan® Polymers 0.000 claims description 8
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000004584 polyacrylic acid Substances 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- -1 aralkyl carboxylic acid Chemical class 0.000 claims description 3
- 150000002222 fluorine compounds Chemical class 0.000 claims description 3
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 150000008064 anhydrides Chemical class 0.000 claims 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 15
- 230000007797 corrosion Effects 0.000 description 24
- 238000005260 corrosion Methods 0.000 description 24
- 239000008367 deionised water Substances 0.000 description 16
- 229910021641 deionized water Inorganic materials 0.000 description 16
- 238000007654 immersion Methods 0.000 description 15
- 239000010410 layer Substances 0.000 description 15
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical class [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 description 14
- 239000003973 paint Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000013505 freshwater Substances 0.000 description 8
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000007598 dipping method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 4
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000002902 organometallic compounds Chemical class 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- NDKWCCLKSWNDBG-UHFFFAOYSA-N zinc;dioxido(dioxo)chromium Chemical compound [Zn+2].[O-][Cr]([O-])(=O)=O NDKWCCLKSWNDBG-UHFFFAOYSA-N 0.000 description 3
- 229910052726 zirconium Inorganic materials 0.000 description 3
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- BFGKITSFLPAWGI-UHFFFAOYSA-N chromium(3+) Chemical class [Cr+3] BFGKITSFLPAWGI-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 2
- 208000028626 extracranial carotid artery aneurysm Diseases 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 229910000398 iron phosphate Inorganic materials 0.000 description 2
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 150000003609 titanium compounds Chemical class 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 231100000563 toxic property Toxicity 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 description 2
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000001263 FEMA 3042 Substances 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- CODNYICXDISAEA-UHFFFAOYSA-N bromine monochloride Chemical compound BrCl CODNYICXDISAEA-UHFFFAOYSA-N 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000004532 chromating Methods 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- WMYWOWFOOVUPFY-UHFFFAOYSA-L dihydroxy(dioxo)chromium;phosphoric acid Chemical compound OP(O)(O)=O.O[Cr](O)(=O)=O WMYWOWFOOVUPFY-UHFFFAOYSA-L 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 1
- 229940033123 tannic acid Drugs 0.000 description 1
- 235000015523 tannic acid Nutrition 0.000 description 1
- 229920002258 tannic acid Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000007601 warm air drying Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- OMQSJNWFFJOIMO-UHFFFAOYSA-J zirconium tetrafluoride Chemical compound F[Zr](F)(F)F OMQSJNWFFJOIMO-UHFFFAOYSA-J 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/1803—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces
- C23C18/1824—Pretreatment of the material to be coated of metallic material surfaces or of a non-specific material surfaces by chemical pretreatment
- C23C18/1837—Multistep pretreatment
- C23C18/1844—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
-
- 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
- C23C22/34—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 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
- 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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
Definitions
- the invention relates to a process for the pretreatment of surfaces made of aluminum or aluminum alloys, in which first the cleaned, pickled and decapitated surfaces are brought into contact with an aqueous solution and / or dispersion of aluminum-zirconium complexes, the surfaces being subjected to a subsequent treatment with aqueous solutions, emulsions and / or dispersions of one or more inorganic and / or organic film formers before coating with organic materials.
- DE-A-32 00 245 relates to a method for treating surfaces made of aluminum or aluminum alloys, which is also carried out in two steps.
- a chemical coating is formed on the aluminum surface to be treated, solutions based on chromic acid, chromate, dichromate, chromic acid-phosphoric acid, phosphoric acid, phosphates, titanates, titanium tannic acid or zirconium fluoride being used.
- the chemical covering produced is treated with solutions based on silica, silicates and / or colloidal silica.
- the surfaces of aluminum bodies treated in this way, in particular aluminum parts in evaporators of air conditioning systems, have improved hydrophilic properties.
- wash primers reaction primers
- Page 669 also reports on the generation of adhesive layers on aluminum surfaces. Here it is said that the surfaces are treated with solutions based on sodium carbonate and sodium chromate and then with bichromate or water glass solutions. The layers produced in this way are also intended to serve as anchoring layers for subsequent film runs or coatings.
- the actual top coat is composed of different layers - prime coat, second coat and finish coat -, the prime coats being based on polyvinyl butyral, acrylates, polyurethanes, vinyl epoxy compounds or phenolic resins and containing corrosion-protecting pigments such as zinc chromate or titanium dioxide can.
- the conversion layers significantly improve the adhesion and the corrosion-inhibiting effect of subsequent coatings with organic materials, such as paints, powder layers or foils. Therefore, the conversion layers are used in particular on aluminum, its alloys and on zinc as corrosion-resistant coatings without a subsequent coating.
- Another one A well-known area of application of chromates and chromic acid is the rinsing of zinc phosphate and iron phosphate conversion layers on steel and galvanized steel.
- this aftertreatment brings about a significant improvement in the adhesion of subsequent coatings with organic materials and an increase in the corrosion resistance of the coated metallic surfaces.
- chromium (VI) compounds Due to the toxic properties of chromium (VI) compounds, the wastewater generated in the control and disposal of the baths must be subjected to a special, complex treatment.
- organometallic compounds Due to recent developments, however, is a class of substances for use in aqueous solutions for pretreating metals before coating with organic materials become interesting, which are organometallic compounds.
- organometallic compounds In the past, the use of organometallic compounds in aqueous solution was prohibited because practically all known representatives of this class of substances hydrolyzed to a greater or lesser extent in aqueous solution.
- US-A-4 650 526 describes a method for treating phosphated metal surfaces before coating them with organic materials.
- organometallic compounds in rinse solutions to improve the adhesion of subsequent organic coatings is described.
- These are aluminum-zircon complexes, which are sold by Cavedon Chemical Co. under the name "CAVCOMOD”.
- CAVCOMOD Cavedon Chemical Co.
- the preparation of the aluminum-zirconium complexes is described in US Patents 4,539,048 and 4,539,049.
- the starting point of the present invention was the aluminum-zirconium complexes described in US Pat. No. 4,650,526. It was shown that treatment of aluminum with the aluminum-zirconium complexes alone did not give acceptable adhesion and corrosion protection values compared to a "classic" pretreatment based on chromium (VI) compounds.
- Another object of the present invention was to improve the method for pretreating surfaces made of aluminum or aluminum alloys before coating with organic materials. Another object of the present invention was to achieve acceptable adhesion and corrosion protection values for such surfaces before coating with organic materials.
- the above-mentioned objects are achieved by the combined use of the above-mentioned aluminum-zirconium complexes with an organic and / or inorganic film former. Conversion layers with very good adhesion and improved corrosion protection properties for subsequent organic coatings can be produced on surfaces made of aluminum and its alloys.
- the above-mentioned aluminum-zirconium complexes are used in a concentration of 0.05 to 50 g / l as an aqueous solution and / or dispersion.
- the contact time is 1 sec to 5 min at a bath temperature of 10 to 60 ° C.
- the organic film formers can be brought into contact with the surfaces by spraying, dipping, flooding, rolling and / or rolling up.
- the contact time of the aqueous solutions, emulsions and / or dispersions containing the organic film formers in one embodiment is 1 sec to 5 min at a bath temperature in the range from 10 to 60 ° C.
- the inorganic film formers are brought into contact with the metal surfaces to be coated in the form of aqueous solutions or dispersions in the course of 1 sec to 5 min at a temperature of 10 to 60 ° C.
- the inorganic film formers can be brought into contact by spraying, dipping, Flooding, rolling and / or rolling with the surface happen.
- free and / or complex fluorides are added to the solutions containing aluminum-zirconium complexes in a concentration of 0.01 to 1 g / l.
- zircoaluminate solution The active contents of the commercially available solutions (hereinafter zircoaluminate solution) are between 20 - 24%.
- Aluminum sheets (Al 99.5) format 100 x 200 x 0.7 mm were treated as follows: 1) Dipping in a conventional alkaline cleaner (RIDOLINE C 1515, containing sodium hydroxide, phosphates, complexing agents and nonionic surfactants). Concentration: 3% (wt.) In fresh water Time: 3 min. Temp .: 60 ° C 2) Dip rinse in fresh water Time: 1 min Temp .: RT (room temperature) 3) Remove the oxide skin by dipping in a chromium-free agent (DEOXIDIZER 395 H, containing complex fluorides in acid solution).
- the sheets were then subjected to adhesion and corrosion protection tests.
- a continuous cut is made on the metal sheets, down to the metal surface, on which the through Corrosion caused by infiltration is determined in mm.
- the sheets were dried as in reference example I according to 8).
- the sheets were painted as in Reference Example I and subjected to the same adhesion and corrosion tests. The values are shown in Table 3.
- the concentration of the polyacrylic acid used was 1 g / l.
- the concentration of silicon dioxide in the immersion sink was 1.5 g / l.
- the basic monomers are butyl acrylate and methyl methacrylate, the dispersion in the delivery form has a solids content of 50%, the pH is 2.2 ⁇ 0.5, the average particle diameter is 0.15 ⁇ m.
- Aerosil 200 As in Reference Example IV and Examples IV, but Degussa was used as Aerosil 200 silicon dioxide. Aerosil 200 has the following characteristics: Average size of the particles: 12 nm, surface according to BET 200 m2 / g, pH value in 4% aqueous dispersion: 3.6-4.3. Concentration: 3 g / l Time: 0.5 min Temp .: RT
- the adhesion of the organic coating is improved both compared to the untreated metal sheets and compared to the standard process.
- the corrosion protection values are significantly closer to the values achieved with the standard process than the values of the untreated sheets.
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
- Chemically Coating (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT89115352T ATE83508T1 (de) | 1988-08-27 | 1989-08-19 | Chromfreies verfahren zur vorbehandlung von oberflaechen aus aluminium oder aluminiumlegierungen vor einer beschichtung mit organischen materialien. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3829154A DE3829154A1 (de) | 1988-08-27 | 1988-08-27 | Chromfreies verfahren zur vorbehandlung von metallischen oberflaechen vor einer beschichtung mit organischen materialien |
| DE3829154 | 1988-08-27 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0356855A2 EP0356855A2 (de) | 1990-03-07 |
| EP0356855A3 EP0356855A3 (en) | 1990-11-14 |
| EP0356855B1 true EP0356855B1 (de) | 1992-12-16 |
Family
ID=6361748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89115352A Expired - Lifetime EP0356855B1 (de) | 1988-08-27 | 1989-08-19 | Chromfreies Verfahren zur Vorbehandlung von Oberflächen aus Aluminium oder Aluminiumlegierungen vor einer Beschichtung mit organischen Materialien |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5026440A (es) |
| EP (1) | EP0356855B1 (es) |
| JP (1) | JPH02118081A (es) |
| AT (1) | ATE83508T1 (es) |
| AU (1) | AU609327B2 (es) |
| BR (1) | BR8904315A (es) |
| CA (1) | CA1332801C (es) |
| DE (2) | DE3829154A1 (es) |
| ES (1) | ES2053886T3 (es) |
| MX (1) | MX170838B (es) |
| TR (1) | TR24778A (es) |
| ZA (1) | ZA896526B (es) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4017187A1 (de) * | 1990-05-29 | 1991-12-05 | Metallgesellschaft Ag | Verfahren zur nachspuelung von konversionsschichten |
| CA2095810A1 (en) * | 1990-11-10 | 1992-05-11 | Colin Marsh | Coating composition and process |
| GB9120442D0 (en) * | 1991-09-25 | 1991-11-06 | Laporte Industries Ltd | Coating composition and process |
| GB9120441D0 (en) * | 1991-09-25 | 1991-11-06 | Laporte Industries Ltd | Aqueous composition and uses thereof |
| DE4138218C2 (de) * | 1991-11-21 | 1994-08-04 | Doerken Ewald Ag | Verwendung von Nachtauchmitteln für die Nachbehandlung von chromatierten oder passivierten Verzinkungsschichten |
| US5294265A (en) * | 1992-04-02 | 1994-03-15 | Ppg Industries, Inc. | Non-chrome passivation for metal substrates |
| DE69330138T3 (de) * | 1992-11-30 | 2007-10-11 | Bulk Chemicals, Inc. | Verfahren und zusammensetzungen zur behandlung von metalloberflächen |
| US5314546A (en) * | 1993-01-04 | 1994-05-24 | Betz Laboratories, Inc. | Process for enhanced drainage of residual aqueous rinse on the external surface of plastic parts |
| US5804652A (en) * | 1993-08-27 | 1998-09-08 | Bulk Chemicals, Inc. | Method and composition for treating metal surfaces |
| AU716903B2 (en) * | 1995-10-10 | 2000-03-09 | Prc-Desoto International, Inc. | Non-chromate corrosion inhibitors for aluminum alloys |
| US6059867A (en) * | 1995-10-10 | 2000-05-09 | Prc-Desoto International, Inc. | Non-chromate corrosion inhibitors for aluminum alloys |
| US5693371A (en) * | 1996-10-16 | 1997-12-02 | Betzdearborn Inc. | Method for forming chromium-free conversion coating |
| US6027579A (en) * | 1997-07-07 | 2000-02-22 | Coral Chemical Company | Non-chrome rinse for phosphate coated ferrous metals |
| TW387926B (en) * | 1998-05-15 | 2000-04-21 | Nippon Dacro Shamrock Co | Surface treatment agent for metals, surface treatment method for metals, and pre-coated steel plate |
| DE19921842A1 (de) * | 1999-05-11 | 2000-11-16 | Metallgesellschaft Ag | Vorbehandlung von Aluminiumoberflächen durch chromfreie Lösungen |
| US6746719B2 (en) * | 2000-10-13 | 2004-06-08 | Atofina Chemicals, Inc. | Process of priming a metal surface for attaching resin systems thereto utilizing aqueous emulsion of a polyfunctional epoxide compound as the primer |
| US6761932B2 (en) * | 2002-08-23 | 2004-07-13 | Basf Corporation | Method to improve adhesion of primers to substrates |
| US6887308B2 (en) * | 2003-01-21 | 2005-05-03 | Johnsondiversey, Inc. | Metal coating coupling composition |
| US7815751B2 (en) * | 2005-09-28 | 2010-10-19 | Coral Chemical Company | Zirconium-vanadium conversion coating compositions for ferrous metals and a method for providing conversion coatings |
| JP5638191B2 (ja) * | 2008-11-05 | 2014-12-10 | 日本パーカライジング株式会社 | 化成処理金属板およびその製造方法 |
| FR2952557B1 (fr) * | 2009-11-17 | 2011-12-23 | Peugeot Citroen Automobiles Sa | Procede de traitement de surface et de peinture de pieces metalliques, notamment des arbres de transmission de vehicules automobiles |
| KR102250420B1 (ko) * | 2016-09-01 | 2021-05-13 | 생-고뱅 퍼포먼스 플라스틱스 코포레이션 | 전환 코팅 및 제조 방법 |
| ES2906198T3 (es) * | 2017-09-14 | 2022-04-13 | Chemetall Gmbh | Método para pretratar materiales de aluminio, en particular ruedas de aluminio |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850732A (en) * | 1970-12-02 | 1974-11-26 | Amchem Prod | Zirconium rinse for phosphate coated metal surfaces |
| US3912548A (en) * | 1973-07-13 | 1975-10-14 | Amchem Prod | Method for treating metal surfaces with compositions comprising zirconium and a polymer |
| DE2704260A1 (de) * | 1977-02-02 | 1978-08-03 | Metallgesellschaft Ag | Verfahren zur oberflaechenbehandlung von aluminium oder aluminiumlegierungen |
| DE3200245C2 (de) * | 1982-01-07 | 1986-06-05 | Showa Aluminum Corp., Sakai, Osaka | Verdampfer, insbesondere von Klimaanlagen, und Verfahren zu seiner Beschichtung |
| US4539049A (en) * | 1983-02-09 | 1985-09-03 | Jos. Cavedon Co., Inc. | Aluminum zirconium metallo-organic complex useful as coupling and hydrophobic agents |
| US4539048A (en) * | 1983-02-09 | 1985-09-03 | Jos. Cavedon Company Inc. | Aluminum zirconium metallo-organic complexes useful as coupling agents |
| US4496404A (en) * | 1984-05-18 | 1985-01-29 | Parker Chemical Company | Composition and process for treatment of ferrous substrates |
| AU4751885A (en) * | 1984-10-09 | 1986-04-17 | Parker Chemical Company | Treating extruded aluminium metal surfaces |
| US4650526A (en) * | 1986-03-18 | 1987-03-17 | Man-Gill Chemical Company | Post treatment of phosphated metal surfaces by aluminum zirconium metallo-organic complexes |
-
1988
- 1988-08-27 DE DE3829154A patent/DE3829154A1/de not_active Withdrawn
-
1989
- 1989-07-21 TR TR89/0885A patent/TR24778A/xx unknown
- 1989-08-19 DE DE8989115352T patent/DE58903014D1/de not_active Expired - Fee Related
- 1989-08-19 AT AT89115352T patent/ATE83508T1/de not_active IP Right Cessation
- 1989-08-19 EP EP89115352A patent/EP0356855B1/de not_active Expired - Lifetime
- 1989-08-19 ES ES89115352T patent/ES2053886T3/es not_active Expired - Lifetime
- 1989-08-21 MX MX017259A patent/MX170838B/es unknown
- 1989-08-24 US US07/398,108 patent/US5026440A/en not_active Expired - Fee Related
- 1989-08-24 CA CA000609287A patent/CA1332801C/en not_active Expired - Fee Related
- 1989-08-25 AU AU40802/89A patent/AU609327B2/en not_active Ceased
- 1989-08-25 ZA ZA896526A patent/ZA896526B/xx unknown
- 1989-08-28 BR BR898904315A patent/BR8904315A/pt unknown
- 1989-08-28 JP JP1221396A patent/JPH02118081A/ja active Pending
Non-Patent Citations (3)
| Title |
|---|
| Korrosion und Korrosionsschutz, F.Tödt (2.Auflage, Berlin 1961), Seiten 421/2, 452,454/5, 668-670. * |
| Metals Handbook, Band 5 (9.Auflage , ASM 1982), "Surface Cleaning, Finishing and Coating", Seiten 477, 598/9, 647/8. * |
| Römpps Chemie-Lexikon, Band 3 (1973), Seite 1769 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2053886T3 (es) | 1994-08-01 |
| ATE83508T1 (de) | 1993-01-15 |
| AU609327B2 (en) | 1991-04-26 |
| BR8904315A (pt) | 1990-04-17 |
| ZA896526B (en) | 1990-04-25 |
| EP0356855A2 (de) | 1990-03-07 |
| DE58903014D1 (de) | 1993-01-28 |
| DE3829154A1 (de) | 1990-03-01 |
| JPH02118081A (ja) | 1990-05-02 |
| US5026440A (en) | 1991-06-25 |
| AU4080289A (en) | 1990-03-01 |
| CA1332801C (en) | 1994-11-01 |
| TR24778A (tr) | 1992-03-09 |
| EP0356855A3 (en) | 1990-11-14 |
| MX170838B (es) | 1993-09-20 |
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