EP0857227A1 - Kurzzeit-heissverdichtung anodisierter metalloberflächen - Google Patents
Kurzzeit-heissverdichtung anodisierter metalloberflächenInfo
- Publication number
- EP0857227A1 EP0857227A1 EP96934587A EP96934587A EP0857227A1 EP 0857227 A1 EP0857227 A1 EP 0857227A1 EP 96934587 A EP96934587 A EP 96934587A EP 96934587 A EP96934587 A EP 96934587A EP 0857227 A1 EP0857227 A1 EP 0857227A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- acids
- aqueous solution
- group
- diphosphonic acid
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 239000002253 acid Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000000243 solution Substances 0.000 claims abstract description 29
- 150000007513 acids Chemical class 0.000 claims abstract description 21
- 239000007864 aqueous solution Substances 0.000 claims abstract description 19
- 150000003009 phosphonic acids Chemical class 0.000 claims abstract description 11
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 9
- 150000007524 organic acids Chemical class 0.000 claims abstract description 9
- 235000005985 organic acids Nutrition 0.000 claims abstract description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 7
- 238000009835 boiling Methods 0.000 claims abstract description 6
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 4
- 229910001413 alkali metal ion Inorganic materials 0.000 claims abstract description 3
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 3
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 claims abstract description 3
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 3
- 238000007743 anodising Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 150000001735 carboxylic acids Chemical class 0.000 claims description 8
- 239000012141 concentrate Substances 0.000 claims description 7
- WLWKIJKUDWYINL-UHFFFAOYSA-N cyclohexane-1,1,2,2,3,3-hexacarboxylic acid Chemical compound OC(=O)C1(C(O)=O)CCCC(C(O)=O)(C(O)=O)C1(C(O)=O)C(O)=O WLWKIJKUDWYINL-UHFFFAOYSA-N 0.000 claims description 6
- COKIOUWMXONTKQ-UHFFFAOYSA-N 1-phosphonopropane-1,2,3-tricarboxylic acid Chemical compound OC(=O)CC(C(O)=O)C(C(O)=O)P(O)(O)=O COKIOUWMXONTKQ-UHFFFAOYSA-N 0.000 claims description 4
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 4
- 239000003945 anionic surfactant Substances 0.000 claims description 4
- QMKYBPDZANOJGF-UHFFFAOYSA-N benzene-1,3,5-tricarboxylic acid Chemical compound OC(=O)C1=CC(C(O)=O)=CC(C(O)=O)=C1 QMKYBPDZANOJGF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- YDSWCNNOKPMOTP-UHFFFAOYSA-N mellitic acid Chemical compound OC(=O)C1=C(C(O)=O)C(C(O)=O)=C(C(O)=O)C(C(O)=O)=C1C(O)=O YDSWCNNOKPMOTP-UHFFFAOYSA-N 0.000 claims description 4
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 claims description 4
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 claims description 4
- ZCOMURCDMLBWOR-UHFFFAOYSA-N (hydroxy-phenyl-phosphonomethyl)phosphonic acid Chemical compound OP(=O)(O)C(P(O)(O)=O)(O)C1=CC=CC=C1 ZCOMURCDMLBWOR-UHFFFAOYSA-N 0.000 claims description 3
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 3
- LDTZSTJLVYBEKB-UHFFFAOYSA-N butedronic acid Chemical compound OC(=O)CC(C(O)=O)C(P(O)(O)=O)P(O)(O)=O LDTZSTJLVYBEKB-UHFFFAOYSA-N 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- GPCTYPSWRBUGFH-UHFFFAOYSA-N (1-amino-1-phosphonoethyl)phosphonic acid Chemical compound OP(=O)(O)C(N)(C)P(O)(O)=O GPCTYPSWRBUGFH-UHFFFAOYSA-N 0.000 claims description 2
- RUPZRJCPTQGQRU-UHFFFAOYSA-N (1-hydroxy-1-phosphonobutyl)phosphonic acid Chemical compound CCCC(O)(P(O)(O)=O)P(O)(O)=O RUPZRJCPTQGQRU-UHFFFAOYSA-N 0.000 claims description 2
- XHAZMZWXAOBLQG-UHFFFAOYSA-N (1-hydroxy-1-phosphonopropyl)phosphonic acid Chemical compound CCC(O)(P(O)(O)=O)P(O)(O)=O XHAZMZWXAOBLQG-UHFFFAOYSA-N 0.000 claims description 2
- IDYCJOKDHJLCGO-UHFFFAOYSA-N (amino-phenyl-phosphonomethyl)phosphonic acid Chemical compound OP(=O)(O)C(P(O)(O)=O)(N)C1=CC=CC=C1 IDYCJOKDHJLCGO-UHFFFAOYSA-N 0.000 claims description 2
- KMDMOMDSEVTJTI-UHFFFAOYSA-N 2-phosphonobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)P(O)(O)=O KMDMOMDSEVTJTI-UHFFFAOYSA-N 0.000 claims description 2
- QLGZQPQQPUMNBD-UHFFFAOYSA-N [1-(butylamino)-1-phosphonoethyl]phosphonic acid Chemical compound CCCCNC(C)(P(O)(O)=O)P(O)(O)=O QLGZQPQQPUMNBD-UHFFFAOYSA-N 0.000 claims description 2
- SCOXZKRXKMRCCY-UHFFFAOYSA-N [1-(dimethylamino)-1-phosphonoethyl]phosphonic acid Chemical compound CN(C)C(C)(P(O)(O)=O)P(O)(O)=O SCOXZKRXKMRCCY-UHFFFAOYSA-N 0.000 claims description 2
- SBRJRPNSSOSLRR-UHFFFAOYSA-N [1-phosphono-1-(propylamino)ethyl]phosphonic acid Chemical compound CCCNC(C)(P(O)(O)=O)P(O)(O)=O SBRJRPNSSOSLRR-UHFFFAOYSA-N 0.000 claims description 2
- DKPHLYCEFBDQKM-UHFFFAOYSA-H hexapotassium;1-phosphonato-n,n-bis(phosphonatomethyl)methanamine Chemical compound [K+].[K+].[K+].[K+].[K+].[K+].[O-]P([O-])(=O)CN(CP([O-])([O-])=O)CP([O-])([O-])=O DKPHLYCEFBDQKM-UHFFFAOYSA-H 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 36
- 238000007906 compression Methods 0.000 description 28
- 230000006835 compression Effects 0.000 description 20
- 229910052782 aluminium Inorganic materials 0.000 description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 12
- 238000005056 compaction Methods 0.000 description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 239000003792 electrolyte Substances 0.000 description 7
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000004040 coloring Methods 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 239000000975 dye Substances 0.000 description 6
- 229940069446 magnesium acetate Drugs 0.000 description 6
- 235000011285 magnesium acetate Nutrition 0.000 description 6
- 239000011654 magnesium acetate Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- -1 alkylaryl sulfates Chemical class 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000010407 anodic oxide Substances 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000000280 densification Methods 0.000 description 3
- 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 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- HVBSAKJJOYLTQU-UHFFFAOYSA-N 4-aminobenzenesulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C=C1 HVBSAKJJOYLTQU-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003093 cationic surfactant Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- YFVGRULMIQXYNE-UHFFFAOYSA-M lithium;dodecyl sulfate Chemical compound [Li+].CCCCCCCCCCCCOS([O-])(=O)=O YFVGRULMIQXYNE-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002815 nickel Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- LBPHBRVNBKGYTP-UHFFFAOYSA-N (1-hydroxy-1-phosphonohexyl)phosphonic acid Chemical compound CCCCCC(O)(P(O)(O)=O)P(O)(O)=O LBPHBRVNBKGYTP-UHFFFAOYSA-N 0.000 description 1
- GPXCJKUXBIGASD-UHFFFAOYSA-N 1-phosphonobutane-1,2,4-tricarboxylic acid Chemical compound OC(=O)CCC(C(O)=O)C(C(O)=O)P(O)(O)=O GPXCJKUXBIGASD-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- SDGNNLQZAPXALR-UHFFFAOYSA-N 3-sulfophthalic acid Chemical compound OC(=O)C1=CC=CC(S(O)(=O)=O)=C1C(O)=O SDGNNLQZAPXALR-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- 229940120146 EDTMP Drugs 0.000 description 1
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- DJEQZVQFEPKLOY-UHFFFAOYSA-N N,N-dimethylbutylamine Chemical compound CCCCN(C)C DJEQZVQFEPKLOY-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- USNWAMPROKAEIT-UHFFFAOYSA-N [Na].C(C=C)(=O)O Chemical compound [Na].C(C=C)(=O)O USNWAMPROKAEIT-UHFFFAOYSA-N 0.000 description 1
- AEDPOTDCAAOODK-UHFFFAOYSA-N [butylamino(phosphono)methyl]phosphonic acid Chemical compound CCCCNC(P(O)(O)=O)P(O)(O)=O AEDPOTDCAAOODK-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 229940043264 dodecyl sulfate Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 description 1
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- DAZXVJBJRMWXJP-UHFFFAOYSA-N n,n-dimethylethylamine Chemical compound CCN(C)C DAZXVJBJRMWXJP-UHFFFAOYSA-N 0.000 description 1
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical compound CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002816 nickel compounds Chemical class 0.000 description 1
- DBJLJFTWODWSOF-UHFFFAOYSA-L nickel(ii) fluoride Chemical compound F[Ni]F DBJLJFTWODWSOF-UHFFFAOYSA-L 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229950000244 sulfanilic acid Drugs 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000563 toxic property Toxicity 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
Definitions
- the invention is in the field of producing anti-corrosion and / or decorative coatings on metals by anodic oxidation. It relates to an improved method for compacting the electrochemically produced porous anodizing layers in order to further improve their properties.
- the electrochemical anodic oxidation of metals in suitable electrolytes is a widespread process for the formation of corrosion-protective and / or decorative coatings on suitable metals. These processes are briefly characterized, for example, in "Ullmann's Encyclopedia of Industrial Chemistry", 5th Edition, Vol. 9 (1987), pp. 174-176. Accordingly, titanium, magnesium and aluminum and their alloys can be anodized, the anodization of aluminum and its The electrolytically produced anodizing layers protect the aluminum surfaces from the effects of the weather and other corrosive media. Anodizing layers are also applied in order to obtain a harder surface and thus achieve increased wear resistance of the aluminum.
- the aluminum is anodized in an acidic electrolyte, with sulfuric acid being the most widespread. Further suitable electrolytes are phosphoric acid, oxalic acid and chromic acid.
- the properties of the anodizing layers can be varied within wide limits by the choice of the electrolyte, its temperature, the current density and the anodizing time.
- the anodization is usually carried out with direct current or with an alternating current superimposed direct current.
- the fresh anodizing layers can be subsequently colored by dipping in solutions of a suitable dye or by an alternating current treatment in a metal salt-containing, preferably in a tin-containing, electrolyte.
- colored anodizing layers can be obtained by so-called color anodizing processes, for which anodizing in solutions of organic acids, such as, in particular, sulfophthalic acid or sulfanilic acid, optionally in each case in a mixture with sulfuric acid, is used.
- phosphonic acids for example 1-phosphonopropane-1, 2,3-tricarboxylic acid
- further phosphonic acids is known from EP-A-122 129.
- DE-C-22 11 553 describes a process for compacting anodic oxide layers on aluminum and aluminum alloys in aqueous solutions containing phosphonic acids or their salts and calcium ions, the molar ratio of calcium ions to phosphonic acid being set to at least 2: 1.
- a higher ratio of calcium ions to phosphonic acids of about 5: 1 to about 500: 1 is preferably used.
- Suitable phosphonic acids are: 1-hydroxypropane, 1-hydroxybutane, 1-hydroxypentane, 1-hydroxyhexane-1, 1-diphosphonic acid and 1-hydroxy-1-phenylmethane-1, 1-diphosphonic acid and preferably 1-hydroxyethane - 1, 1-diphosphonic acid, 1-aminoethane, 1-amino-1-phenylmethane,
- it is a conventional hot compression process with compression times between 60 and 70 minutes and anodizing layer thicknesses between approximately 18 and approximately 22 ⁇ m. The compression time is about 3 minutes per ⁇ m layer thickness.
- additives which enable densification in the temperature range below 90 ° C: nickel salts, in particular fluorides, some of which are used in practice (EP-A-171 799), nitrosylpentacyanoferrate, complex fluorides of titanium and zirconium as well as chromates or Chromic acid, optionally in conjunction with other additives.
- nickel salts in particular fluorides, some of which are used in practice (EP-A-171 799)
- nitrosylpentacyanoferrate complex fluorides of titanium and zirconium as well as chromates or Chromic acid, optionally in conjunction with other additives.
- nitrosylpentacyanoferrate complex fluorides of titanium and zirconium as well as chromates or Chromic acid, optionally in conjunction with other additives.
- a short-term hot compression process is known from US Pat. No. 5,411,607, in which the anodized metal parts are immersed in a lithium-containing aqueous solution.
- the lithium concentration is preferably in the range from 0.01 to 50 g / l and in particular in the range from 0.01 to 5 g / l.
- the compaction solution additionally contain a sealant preventing agent. This is preferably present in a concentration between 0.1 and 10 g / l and preferably represents an aromatic disulfonate.
- 5,411,607 a short-term hot compression with an aqueous solution which contains at least 0.01 g / l of lithium ions and from 0.1 to 10 g / l of a sealing deposit inhibitor.
- the sealing deposit inhibitor is preferably an aromatic disulfonate.
- the teaching of the latter two documents enables a significant reduction in hot compression times. For economic and environmental reasons, however, it would be desirable to have compression processes available with a significantly reduced use of chemicals.
- the object of the invention is to provide such a method.
- the invention relates to a method for compacting anodized metal surfaces, characterized in that the anodized metal is brought into contact with an aqueous solution having a temperature between 75 ° C. and the boiling point and for a period of between 0.5 and 2 minutes per micrometer of anodizing layer thickness has a pH in the range from 5.5 to 8.5 and which a) a total of 0.0001 to 5 g / l of one or more alkali metal and / or alkaline earth metal ions and b) a total of 0.0005 to 0.5 g / l of one or more organic acids, selected from cyclic polycarboxylic acids with 3 to 6 carboxyl groups and / or phosphonic acids and / or polyphosphinocarboxylic acids, the solution containing a larger amount of the metal ions of group a) than for the complete neutralization of the acids of group b ) is required.
- the treatment solutions can be brought into contact with the anodized metals by spraying the solutions onto the metal surfaces or preferably by immersing the metal parts in the solutions.
- the required treatment times are only in the range from 20 to 40 minutes. It is therefore preferred according to the invention that the anodized metal is brought into contact with the aqueous solution defined above for a period of between 1 and 2 minutes per micrometer of anodizing layer thickness.
- the temperature of the treatment solution is preferably in the Range between 90 ° C and the boiling point and in particular in the range from 94 to 98 ° C, for example at 96 ° C.
- the pH of the aqueous solution is preferably in the range 5.5 to 7, in particular in the range 5.5 to 6.5. If necessary, the pH can be adjusted with ammonia or with acetic acid. With ammonium acetate as a buffer, it can be kept in the required range.
- Lithium and magnesium are particularly suitable as metal ions of group a).
- the metals can be used in the form of their salts which are water-soluble in the specified concentration range, for example as acetate, lactate, sulfate, oxalate and / or nitrate. Acetates are particularly suitable.
- the organic acids of group b) are selected from saturated or unsaturated or aromatic carbocyclic six-ring carboxylic acids with 3 to 6 carboxyl groups.
- Preferred examples of such acids are trimesic acid, trimellitic acid, pyromellitic acid, mellitic acid and the particularly preferred cyclohexane hexacarboxylic acid.
- the total amount of such carboxylic acids is preferably in the range from 0.0005 to 0.2 g / l, in particular from 0.001 to 0.1 g / l, and particularly preferably in the range from 0.001 to 0.05 g / l.
- cyclohexane hexacarboxylic acid exists in the form of different stereoisomers. As is known from DE-A-26 50 989, those cyclohexane hexacarboxylic acids are preferred which carry 5 cis and 1 trans or the 4 cis and 2 trans carboxyl groups.
- the aqueous treatment solution preferably contains 0.1 to 5 g / l and in particular 0.2 to 2.5 g / l of metal ions of group a).
- the organic acids of group b) are selected from the phosphonic acids: 1-phosphonopropane-1, 2,3-tricarboxylic acid, 1, 1-diphosphonopropane-2,3-dicarboxylic acid, 1-hydroxypropane-1, 1- diphosphonic acid, 1-hydroxybutane-1, 1 -diphosphonic acid, 1 -hydroxy-1 -phenylmethane-1, 1 - diphosphonic acid, 1 -hydroxyethane-1, 1 -diphosphonic acid, 1 -aminoethane-1, 1 - diphosphonic acid, 1 -amino- 1- phenylmethane-1, 1 -diphosphonic acid,
- the above-mentioned phosphonic acids and polyphosphinocarboxylic acids are used as acids of group b) preferably in an amount of 0.003 to 0.1 and in particular in an amount of 0.003 to 0.05 g / l.
- the aqueous treatment solution preferably contains 0.0001 to 0.01 g / l and in particular a maximum of 0.005 g / l in total of group a) metal ions.
- the aqueous compression solution additionally contains about 0.001 to 0.05 g / l of surfactants, selected from the group of the cationic, nonionic or anionic surfactants.
- Quaternary ammonium salts for example, are suitable as cationic surfactants.
- anionic surfactants such as, for example, alkyl or alkylaryl sulfates or sulfonates are preferably used. For environmental reasons, linear alkyl sulfates such as for example lauryl sulfate, is preferred.
- the anionic surfactants are used as alkali metal salts, with lithium salts being particularly preferred.
- Fatty amine or fatty alcohol ethoxylates can be used as nonionic surfactants. Fatty alcohol ethoxylates with 4-8 ethylene oxide units are preferred.
- the concentration of the surfactants is preferably in the range from 0.002 to 0.02 g / l.
- the compression bath suitable for the compression process according to the invention can in principle be produced on site by dissolving the constituents in - preferably fully deionized - water in the required concentration range.
- an aqueous concentrate is used to prepare the compression baths, which already contains all the necessary components of the compression bath in the correct proportions and from which the ready-to-use solution is obtained by dilution with water, for example by a factor of between about 10 and about 1000.
- the pH must be adjusted to the range according to the invention with ammonia or with acetic acid.
- the invention accordingly also encompasses an aqueous concentrate for preparing the aqueous solution for use in the short-term hot compression process according to the invention, the concentrate yielding the ready-to-use aqueous solution by dilution with water by a factor of between about 10 and about 1000.
- compacted anodizing layers can be produced which, in terms of their layer properties, are not inferior to those conventionally produced.
- the test parameters for the layer quality are in particular the acid removal in chromic acid, the apparent conductance and the color drop test. These quality indicators of the layers are checked according to standard test procedures, which are given in the example section.
- the compression method according to the invention is preferably used for anodized aluminum or anodized aluminum alloys. However, it can also be applied to the anodizing layers of other anodizable metals, such as titanium and magnesium or their alloys.
- the method according to the invention has the further advantage that the bleeding out of the dye which is possible with conventional hot compression can be reduced by the shortened compression time.
- Aluminum sheets of the type AI 99.5 were conventionally anodized (direct current / sulfuric acid, one hour, layer thickness 20 ⁇ m) and, if necessary, colored electrochemically or with organic immersion colors.
- the sheets were then immersed in the compression solutions or comparative solutions according to the tables according to the invention for times between 30 and 60 minutes.
- the solutions had a temperature of 96 ° C.
- the metal sheets were immersed in boiling demineralized water for one minute and then dried.
- the quality of the compaction was then checked using the practical quality tests described below. Their results are also included in the tables. They show that with the process according to the invention, compaction results are obtained after only 30 minutes, and experience has shown that this can only be obtained after one hour with a conventional hot compression bath. In contrast, the compaction results after half an hour of treatment with comparative solutions are qualitatively inadequate.
- the admittance Y20 was determined according to the German standard DIN 50949 with a
- Measuring device Anotest Y D 8.1 from Fischer determined.
- the measuring system consists of two electrodes, one of which is conductively connected to the base material of the sample.
- the second electrode is immersed in an electrolyte cell that can be placed on the layer to be examined.
- This cell is designed as a rubber ring with an inner diameter of 13 mm and a thickness of approximately 5 mm, the ring surface of which is self-adhesive.
- the measuring area is 1.33 crn ⁇ .
- a potassium sulfate solution (35 g / l) in deionized water is used as the electrolyte.
- the apparent conductance readable on the measuring device is converted to a measuring temperature of 25 ° C and a layer thickness of 20 ⁇ m in accordance with the specifications of DIN 50949.
- the values obtained, which should preferably be in the range between approximately 10 and approximately 20 ⁇ S, are entered in the tables.
- the residual reflection after staining with dye was measured in accordance with the German standard DIN 50946 as a parameter which indicates open-pore and thus poorly compressed layers.
- the measuring area was limited using a self-adhesive measuring cell of the Anotest device described above.
- the test area is wetted with an acid solution (25 ml / l sulfuric acid, 10 g / l KF). After exactly one minute, the acid solution is washed off and the test area is dried. The test area is then wetted with dye solution (5 g / l Sanodal blue), which is left to act for a minute. After rinsing under running water, the measuring cell is removed.
- the stained test area is freed from loosely adhering dye by rubbing it off using a mild powder cleaner.
- a relative reflection measurement is carried out by placing the measuring head of a light reflection measuring device (Micro Color from Dr. Lange) once on an uncolored part of the surface and secondly on the stained measuring surface.
- the residual reflection in% is obtained by multiplying the quotient from the measured value of the colored area by the measured value of the uncolored area. Residual reflection values between 95 and 100% are evidence of good compaction quality, while values below 95% are considered unacceptable. The higher the values of the residual reflection, the higher the compression quality.
- the values found are entered in the tables.
- the acid removal was measured based on ISO 3210.
- test plate is weighed to the nearest 0.1 mg and then immersed for 15 minutes at 38 ° C in an acid solution containing 35 ml of 85% phosphoric acid and 20 g of chromium (VI) oxide per liter.
- sample is rinsed with deionized water and dried in a drying cabinet at 60 ° C. for 15 minutes.
- the sample is then weighed again.
- test sheets were immersed for 30 minutes each in the treatment solutions according to the invention according to Examples 1 to 7 and the comparative solutions according to Comparative Examples 1 to 3.
- the treatment solutions were in each case prepared directly, ie without diluting the corresponding concentrates, by dissolving the specified active compounds in deionized water.
- the duration of the treatment of the test sheets (immersion) was varied here; the respective times are shown in Table 2.
- Comparison 1 had fingerprints. The appearance of the layers was good in the remaining examples.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19538777A DE19538777A1 (de) | 1995-10-18 | 1995-10-18 | Kurzzeit-Heißverdichtung anodisierter Metalloberflächen |
DE19538777 | 1995-10-18 | ||
DE1996121819 DE19621819A1 (de) | 1996-05-31 | 1996-05-31 | Kurzzeit-Heißverdichtung anodisierter Metalloberflächen |
DE19621819 | 1996-05-31 | ||
PCT/EP1996/004373 WO1997014828A1 (de) | 1995-10-18 | 1996-10-09 | Kurzzeit-heissverdichtung anodisierter metalloberflächen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0857227A1 true EP0857227A1 (de) | 1998-08-12 |
EP0857227B1 EP0857227B1 (de) | 2000-01-26 |
Family
ID=26019578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96934587A Expired - Lifetime EP0857227B1 (de) | 1995-10-18 | 1996-10-09 | Kurzzeit-heissverdichtung anodisierter metalloberflächen |
Country Status (7)
Country | Link |
---|---|
US (1) | US5935656A (de) |
EP (1) | EP0857227B1 (de) |
AR (1) | AR004035A1 (de) |
AU (1) | AU7287896A (de) |
DE (1) | DE59604329D1 (de) |
ES (1) | ES2142619T3 (de) |
WO (1) | WO1997014828A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19804124A1 (de) * | 1998-02-03 | 1999-08-05 | Bayer Ag | Phosphorhaltige Verbindungen auf Basis der 1-Hydroxypropan-1,3-diphosphonsäure |
WO2000001865A1 (fr) * | 1998-07-07 | 2000-01-13 | Izumi Techno Inc. | Procede pour traiter la surface d'une preforme en aluminium |
DE10161478A1 (de) * | 2001-12-14 | 2003-06-26 | Henkel Kgaa | Verfahren zum Verdichten von anodisierten Metalloberflächen im mittleren Temperaturbereich |
USD790917S1 (en) | 2015-07-27 | 2017-07-04 | Whirlpool Corporation | Food processing attachment |
USD790918S1 (en) | 2015-07-27 | 2017-07-04 | Whirlpool Corporation | Food processing attachment |
CN105040067B (zh) * | 2015-09-09 | 2017-09-29 | 佛山市海化表面处理科技有限公司 | 环保型无镍无氟中温封闭剂及封闭方法 |
ITUB20160646A1 (it) * | 2016-02-10 | 2017-08-10 | Italtecno S R L | Metodo per il fissaggio dell'ossido anodico. |
US10138566B2 (en) * | 2017-01-13 | 2018-11-27 | Macdermid Acumen, Inc. | Sealing anodized aluminum using a low-temperature nickel-free process |
US10480093B2 (en) | 2017-05-12 | 2019-11-19 | United Technologies Corporation | Sealing process for an anodized aluminum-alloy surface |
USD867051S1 (en) | 2017-10-04 | 2019-11-19 | Whirlpool Corporation | Grinder attachment for a stand mixer |
USD885822S1 (en) | 2018-12-14 | 2020-06-02 | Whirlpool Corporation | Food grinder |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE792852A (fr) * | 1971-12-17 | 1973-06-15 | Henkel & Cie Gmbh | Procede de traitement de surfaces d'aluminium par oxydation suivie d'une densification |
DE2211553C3 (de) * | 1972-03-10 | 1978-04-20 | Henkel Kgaa, 4000 Duesseldorf | Verfahren zum Verdichten von anodischen Oxidschichten auf Aluminium und Aluminiumlegierungen |
DE2650989C2 (de) * | 1976-11-08 | 1985-01-24 | Henkel KGaA, 4000 Düsseldorf | Verfahren zur Behandlung von Aluminiumoberflächen durch Oxidation mit einer nachfolgenden Verdichtung |
US4202706A (en) * | 1979-03-12 | 1980-05-13 | Minnesota Mining And Manufacturing Company | Corrosion resistance treatment of aluminum with N-alkyl-fluoroaliphaticsulfonamidophosphonic acids and salts thereof |
US4376000A (en) * | 1980-11-28 | 1983-03-08 | Occidental Chemical Corporation | Composition for and method of after-treatment of phosphatized metal surfaces |
GB8309571D0 (en) * | 1983-04-08 | 1983-05-11 | Albright & Wilson | Accelerated sealing of anodised aluminium |
US4647347A (en) * | 1984-08-16 | 1987-03-03 | Amchen Products, Inc. | Process and sealant compositions for sealing anodized aluminum |
DE3820650A1 (de) * | 1988-06-18 | 1989-12-21 | Henkel Kgaa | Verfahren zum verdichten von anodisierten oxidschichten auf aluminium und aluminiumlegierungen |
US5411607A (en) * | 1993-11-10 | 1995-05-02 | Novamax Technologies Holdings, Inc. | Process and composition for sealing anodized aluminum surfaces |
CN1125271A (zh) * | 1994-12-23 | 1996-06-26 | 华东冶金学院 | 铝和铝合金低温快速封闭剂及封闭工艺 |
-
1996
- 1996-10-09 ES ES96934587T patent/ES2142619T3/es not_active Expired - Lifetime
- 1996-10-09 WO PCT/EP1996/004373 patent/WO1997014828A1/de active IP Right Grant
- 1996-10-09 AU AU72878/96A patent/AU7287896A/en not_active Abandoned
- 1996-10-09 EP EP96934587A patent/EP0857227B1/de not_active Expired - Lifetime
- 1996-10-09 US US09/051,856 patent/US5935656A/en not_active Expired - Fee Related
- 1996-10-09 DE DE59604329T patent/DE59604329D1/de not_active Expired - Fee Related
- 1996-10-18 AR ARP960104796A patent/AR004035A1/es unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9714828A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59604329D1 (de) | 2000-03-02 |
US5935656A (en) | 1999-08-10 |
AU7287896A (en) | 1997-05-07 |
WO1997014828A1 (de) | 1997-04-24 |
EP0857227B1 (de) | 2000-01-26 |
AR004035A1 (es) | 1998-09-30 |
ES2142619T3 (es) | 2000-04-16 |
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