EP0922123B1 - Wässrige lösung und verfahren zur phosphatierung metallischer oberflächen - Google Patents
Wässrige lösung und verfahren zur phosphatierung metallischer oberflächen Download PDFInfo
- Publication number
- EP0922123B1 EP0922123B1 EP97943803A EP97943803A EP0922123B1 EP 0922123 B1 EP0922123 B1 EP 0922123B1 EP 97943803 A EP97943803 A EP 97943803A EP 97943803 A EP97943803 A EP 97943803A EP 0922123 B1 EP0922123 B1 EP 0922123B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- solution
- phosphating
- phosphate
- aqueous
- nitroguanidine
- 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
- 238000000034 method Methods 0.000 title claims description 38
- 239000007864 aqueous solution Substances 0.000 title claims description 15
- 239000000243 solution Substances 0.000 claims description 65
- 229910019142 PO4 Inorganic materials 0.000 claims description 46
- 239000010452 phosphate Substances 0.000 claims description 44
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 43
- 239000011701 zinc Substances 0.000 claims description 34
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 8
- 229910001868 water Inorganic materials 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 150000004760 silicates Chemical class 0.000 claims description 4
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims description 3
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004922 lacquer Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims 2
- 239000003381 stabilizer Substances 0.000 claims 2
- 229910004074 SiF6 Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000010422 painting Methods 0.000 claims 1
- 235000021317 phosphate Nutrition 0.000 description 39
- 238000012360 testing method Methods 0.000 description 32
- 230000000052 comparative effect Effects 0.000 description 21
- 239000003973 paint Substances 0.000 description 18
- 239000000758 substrate Substances 0.000 description 18
- 238000002474 experimental method Methods 0.000 description 14
- 230000007797 corrosion Effects 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 11
- 229910001335 Galvanized steel Inorganic materials 0.000 description 10
- 239000008397 galvanized steel Substances 0.000 description 10
- 230000008595 infiltration Effects 0.000 description 8
- 238000001764 infiltration Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000011572 manganese Substances 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 5
- 238000004448 titration Methods 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 2
- 241001499740 Plantago alpina Species 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 2
- ZLCPKMIJYMHZMJ-UHFFFAOYSA-N 2-nitrobenzene-1,3-diol Chemical compound OC1=CC=CC(O)=C1[N+]([O-])=O ZLCPKMIJYMHZMJ-UHFFFAOYSA-N 0.000 description 1
- SLAMLWHELXOEJZ-UHFFFAOYSA-N 2-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC=C1[N+]([O-])=O SLAMLWHELXOEJZ-UHFFFAOYSA-N 0.000 description 1
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 1
- ONMOULMPIIOVTQ-UHFFFAOYSA-M 3-Nitrobenzene sulphonate Chemical compound [O-][N+](=O)C1=CC=CC(S([O-])(=O)=O)=C1 ONMOULMPIIOVTQ-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910001963 alkali metal nitrate Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- YSJKYAHYBFJVKV-UHFFFAOYSA-N ethyl n-nitrocarbamate Chemical compound CCOC(=O)N[N+]([O-])=O YSJKYAHYBFJVKV-UHFFFAOYSA-N 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 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
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- CMUOJBJRZUHRMU-UHFFFAOYSA-N nitrourea Chemical compound NC(=O)N[N+]([O-])=O CMUOJBJRZUHRMU-UHFFFAOYSA-N 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- OXNIZHLAWKMVMX-UHFFFAOYSA-N picric acid Chemical compound OC1=C([N+]([O-])=O)C=C([N+]([O-])=O)C=C1[N+]([O-])=O OXNIZHLAWKMVMX-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- JUWGUJSXVOBPHP-UHFFFAOYSA-B titanium(4+);tetraphosphate Chemical compound [Ti+4].[Ti+4].[Ti+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JUWGUJSXVOBPHP-UHFFFAOYSA-B 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- 229910000165 zinc phosphate Inorganic materials 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/186—Orthophosphates containing manganese cations containing also copper cations
-
- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/12—Orthophosphates containing zinc cations
-
- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
-
- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/18—Orthophosphates containing manganese cations
- C23C22/182—Orthophosphates containing manganese cations containing also zinc cations
- C23C22/184—Orthophosphates containing manganese cations containing also zinc cations containing also nickel cations
Definitions
- the invention relates to an aqueous, phosphate-containing solution for the production of phosphate layers on metallic Surfaces made of iron, steel, zinc, zinc alloys, aluminum or aluminum alloys.
- the invention further relates to a Process for phosphating using an aqueous Phosphating solution.
- DE-PS750957 discloses a method for improving the corrosion resistance of metals, in particular iron and steel, by treatment in a solution which forms phosphate coatings, in which the solution contains an accelerating agent and in which nitromethane, nitrobenzene, picric acid are used as accelerating agents , a nitraniline, a nitrophenol, a nitrobenzoic acid, a nitroresorcinol, nitrourea, a nitrourethane or nitroguanidine is used.
- the optimum concentration for the individual accelerators is different, but it is generally between 0.01 and 0.4% by weight in the phosphating solutions.
- the optimal concentration for the accelerator nitroguanidine should be 0.2% by weight.
- DE-PS750957 makes no information about the zinc content, the S value and the Zn-P 2 O 5 ratio of the phosphating solution.
- DE-PS 977633 assumes that a phosphating bath cannot be operated solely with organic accelerators, since the iron accumulates more and more during the phosphating process in the bath, as a result of which the bath quickly becomes unusable and the phosphate layer becomes increasingly coarse-grained with increasing service life and thus gets worse in quality.
- this document proposes a process for the production of phosphate coatings on ferrous metal objects in dilute, phosphoric acid solutions of the primary phosphates of zinc, manganese, cadmium, calcium and magnesium, in which the phosphating bath from time to time or continuously one or more organic accelerating agents, such as For example, nitroguanidine and hydrogen peroxide are added in such a way that the concentration of the organic accelerator in the bath is kept above 0.1% and at the same time a small excess of hydrogen peroxide is maintained in the bath over the amount required for the oxidation of the Fe 2+ ions.
- DE-PS 977633 therefore encourages the person skilled in the art to use nitroguanidine not only as an accelerator but always in combination with hydrogen peroxide.
- DE-OS 38 00 835 discloses a process for phosphating metal surfaces, in particular surfaces made of iron, steel, zinc and their alloys and aluminum as a pretreatment for cold forming, in which the surface is activated without activation in the temperature range from 30 to 70 ° C in contact with an aqueous solution containing 10 to 40 g Ca 2+ / l, 20 to 40 g Zn 2+ / l, 10 to 100 g PO 4 3- / l and as an accelerator 10 to 100 g NO 3 - / l and / or 0.1 to 2.0 g of organic nitro compounds per liter, the solution having a pH in the range from 2.0 to 3.8 and a ratio of free acid to total acid of 1: 4 to 1: 100.
- An m-nitrobenzenesulfonate and / or nitroguanidine can be used as accelerator.
- the phosphate layers produced by the known method have layer weights of 3 to 9 g / m 2 .
- the invention is therefore based on the object of an aqueous Solution for phosphating metallic surfaces too create that contains nitroguanidine as an accelerator and the remaining components are coordinated so that the phosphate layers formed during the phosphating are fine crystalline, have a low layer weight, enable good paint adhesion and good Ensure protection against corrosion. Furthermore, the invention is the Task based on a process for phosphating create the phosphating solution according to the invention used, the method at the lowest possible Temperatures should work for phosphating different metallic surfaces can be used can and using simple technical means as well must work reliably.
- the phosphating solution according to the invention can be used to produce very fine-crystalline phosphate layers which provide excellent paint adhesion and good corrosion protection.
- the crystallites have a plate-like, cuboid or cube-like shape and always have a maximum edge length of ⁇ 15 ⁇ m, which is usually even ⁇ 10 ⁇ m.
- the phosphating solution according to the invention is very suitable for phosphating cavities.
- the phosphate layers deposited on the metallic objects from the phosphating solution according to the invention have a layer weight of 1.5 to 4.5 g / m 2 , preferably of 1.5 to 3 g / m 2 , whereby the paint adhesion is favored in an advantageous manner. With a zinc content> 5 g / l, the corrosion protection properties and paint adhesion deteriorate significantly.
- the Zn: P 2 O 5 ratio relates to the total P 2 O 5.
- the determination of the total P 2 O 5 is based on the titration of the phosphoric acid and / or the primary phosphates from the equivalence point of the primary phosphate to the equivalence point of the secondary phosphate.
- the S value indicates the ratio of free acid, calculated as free P 2 O 5 , to total P 2 O 5 .
- the definitions and determination methods for total P 2 O 5 and free P 2 O 5 are explained in detail in the publication by W. Rausch "Die Phosphatmaschine von Metallen", 1988, pages 299 to 304.
- this solution according to the invention which is suitable for carrying out the low zinc phosphating because of its zinc content of 0.3 to 3 g / l, particularly good work results have been achieved overall.
- the aqueous solution contains 0.5 to 20 g NO 3 - / l.
- the nitrate content according to the invention advantageously favors maintaining the optimal layer weight of 1.5 to 4.5 g / m 2 .
- the nitrate is the phosphating solution in the form of alkali metal nitrates and / or by the cations present in the system, for. B. as zinc nitrate, and / or as HNO 3 added. Since the nitrate-free aqueous solution also delivers good phosphating results, the known acceleration effect of the nitrate is in most cases of minor importance in the present case.
- the phosphating solution 0.01 to 3 g Mn 2+ / l and / or 0.01 to 3 g Ni 2+ / l and / or 1 to 100 mg Cu 2+ / l and / or Contains 10 to 300 mg Co 2+ / l.
- These metal ions are built into the phosphate layer and improve paint adhesion and corrosion protection.
- the aqueous phosphating solution 0.01 to 3 g F - / l and / or 0.05 to 3.5 g / l complex fluoride, preferably (SiF 6 ) 2- or (BF 4 ) - contains.
- the fluoride is added to the phosphating solution when metallic surfaces consisting of aluminum or aluminum alloys are to be phosphated.
- the complex fluorides are added to the phosphating solution, in particular for stabilization, whereby a longer service life of the phosphating baths is achieved.
- the object underlying the invention is further achieved by the creation of a process for phosphating solved at who cleaned the metallic surfaces, then with the aqueous, phosphate-containing phosphating solution during a time of 5 seconds to 10 minutes at one temperature treated from 15 to 70 ° C and finally rinsed with water become.
- This procedure can be done with simple technical Funds are carried out and works extraordinarily reliable.
- the generated with the process Phosphate layers have a consistently good quality that even with a longer operating time of the phosphating bath does not decrease.
- the minimum phosphating time is at Process according to the invention less than in known Low zinc process with the usual accelerators work.
- the minimum phosphating time is the time in which the surface is 100% covered with a phosphate layer.
- the treatment of the metallic surfaces with the phosphating solution is carried out by spraying, dipping, splash-dipping or rolling.
- These working techniques open up a very broad and diverse range of applications for the method according to the invention.
- the metallic surfaces after cleaning with a Activating agents are treated, which is a titanium-containing Contains phosphate. This will form a closed, fine crystalline zinc phosphate layer supported.
- the metallic surfaces after the one following the phosphating After-rinsing process treated with a passivating agent become.
- the passivating agents used can both Be Cr-containing as well as Cr-free.
- Cleaning the metallic surfaces will be both mechanical impurities as well as adhering fats from the surface to be phosphated removed.
- the cleaning of the metallic surfaces belongs to the known state of the art Technique and can be advantageous with an aqueous alkaline Cleaners are carried out. It is useful if the metallic surfaces rinsed with water after cleaning become. Rinsing the cleaned or the phosphated metallic surfaces are done either with tap water or with deionized water.
- the phosphating solution according to the invention is thereby prepared that about 30 to 90 g of a concentrate, which the inorganic components of the phosphating solution and Contains water, be made up to 1 liter with water. Then the intended amount of nitroguanidine in Form a suspension or as a powder in the Phosphating solution introduced. The solution is then ready to use and during phosphating consumed substances can be added continuously by adding the Concentrate and the nitroguanidine are supplemented.
- the invention provides that the nitroguanidine is introduced into the aqueous solution in the form of a stabilized suspension.
- the suspension is stabilized with a layered silicate.
- This suspension contains 100 to 300 g nitroguanidine / l, 10 to 30 g layered silicate / l and the rest water. It can be easily pumped and is stable over 12 months, which means that the nitroguanidine does not settle even after a long time.
- the suspension is prepared by suspending the layered silicate in 1 liter of completely deionized water and then stirring in the nitroguanidine.
- layered silicates [Mg 6 (Si 7.4 Al 0.6) O 20 (OH) 4] Na 0.6 x xH 2 O and [(Mg 5.4 Li 0.6) Si 8 O 20 (OH 3 F) 4] Na 0.6 x xH 2 O especially proven.
- These are synthetically produced three-layer silicates of the smectite type.
- the layered silicates have no adverse effect on the formation of the phosphate layers. In addition to their actual beneficial effect, they also improve the sedimentation of the phosphate sludge and increase its solids content.
- Embodiments 3 and 4 were applied carried out the following process conditions, wherein in particular the suitability of the invention for phosphating Cavities should be checked: steel sheets were in one Box that simulated a cavity corresponding to the Process steps a) to e) treated, which also in the Embodiments 1 and 2 were used. The The phosphated steel sheets were dried in the cavity (Box) at room temperature without compressed air. The composition the aqueous used to phosphate a cavity Solutions and the properties of the phosphate layers result from Table 3.
- the phosphate layers of working examples 3 and 4 had regarding layer weight, crystallite edge length and Minimum phosphating time about the same properties as that Phosphate layers of working examples 1 and 2.
- the Comparative experiments D and E were carried out, the individual Process steps were identical.
- the two Comparative experiments D and E used phosphating solutions are known per se and contain accelerators Hydroxylamine.
- the composition of the to carry out the Comparative experiments D and E used solutions and the Properties of the phosphate layers are in Table 4 specified.
- a comparison of the embodiments 3 and 4 with the Comparative experiments D and E show that with the invention very good phosphating of cavities can be achieved because according to the invention complete, creates closed phosphate layers, and a Flash rust does not occur.
- the term "rust formation” implies that on the metallic surface, the does not have a complete, closed phosphate layer, forms a rust layer during drying, which is very is disadvantageous. In some cases, rust formation remains from, although not a complete, closed phosphate layer what is present on a passivation of the metallic Surface due to the phosphating solution is likely to be based.
- Paint adhesion test values determined.
- Table 5 shows the paint adhesion and corrosion protection test values for different sheets (Substrates) were determined, the individual substrates according to Examples 5,6 and 7 with inventive Solutions and according to the comparative experiments F and G with known solutions have been phosphated by immersion. The The individual substrates were dipped in accordance with the Process steps a) to f) mentioned above. The Composition of the used for Examples 5, 6 and 7 Phosphating solutions are given in Table 7. There there are also the compositions of the known Phosphating solutions used to run the Comparative experiments F and G have been used. After An electrodeposition paint was used to phosphate the substrates by dipping, a filler and a top coat.
- the composition of the aqueous Phosphating solutions required to carry out Examples 8, 9 and 10 were used are shown in Table 8.
- the Composition of the known phosphating solution for Execution of the comparative test H was used also in Table 8.
- On by spraying phosphated substrates was then a Electrocoat, a filler and a topcoat applied.
- the phosphated and painted substrates then became one Testing by outdoor exposure for 6 months a salt spray test, through a cross cut and through a 12-round climate change test with subsequent Subject to falling rocks.
- Table 6 are those for test values determined for individual substrates, where for the cross cut a rating grade and for the Outdoor weathering, the salt spray test and the climate change test measured the infiltration of the paint layer in mm. For the falling rocks the Paint flaking mentioned in percent.
- the corrosion protection achieved by the phosphating according to the invention is comparable to the corrosion protection which occurs through the use of proven, known phosphating processes which work with the nitrite accelerator.
- the phosphating according to the invention avoids the use of the accelerator nitrite, the use of which is increasingly being rejected, since nitrite produces reaction products during the phosphating which damage the environment and are sometimes toxic to humans.
- the paint adhesion and corrosion protection effect achieved by the phosphating according to the invention can be rated as very good to good.
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Description
Beispiel 1 | Beispiel 2 | |
Zn2+ | 1,4 g/l | 1,4 g/l |
Mn2+ | 1,0 g/ll | 1,0 g/l |
Ni2+ | 1,0 g/l | - |
Cu2+ | - | 8 mg/l |
NO3 - | 3,0 g/l | 3,0 g/l |
PO4 3- (gesamt) | 18,0 g/l | 18,0 g/l |
= P2O5 (gesamt) | 13,5 g/l | 13,5 g/l |
Nitroguanidin | 0,5 g/l | 0,5 g/l |
Na+ | die für Titrationsdaten-Einstellung erforderliche Menge | |
S-Wert | 0,09 | 0,09 |
Schichtgewicht | 2,4 g/m2 | 2,6 g/m2 |
Kristallit-Kantenlänge | 2 - 8 µm | 2 - 8 µm |
Mindestphosphatierzeit | < 60 sec | < 60 sec |
Vergleichsversuch A | Vergleichsversuch B | Vergleichsversuch C | |
Zn2+ | 1,4 g/l | 1,4 g/l | 3,5 g/l |
Ni2+ | 1,0 g/l | 1,0 g/l | - |
Mn2+ | 1,0 g/l | 1,0 g/l | - |
P2O5 (gesamt) | 12,0 g/l | 12,0 g/l | 5,5 g/l |
S-Wert | 0,07 | 0,09 | 0,35 |
NO3 - | 3,0 g/l | 3,0 g/l | 3,0 g/l |
H2O2 | 30 mg/l | - | - |
NO2 - | - | 170 mg/l | - |
Nitroguanidin | - | - | 2,0 g/l |
Na+ | die für Titrationsdaten-Einstellung erforderliche Menge | ||
Schichtgewicht | 1,3 g/m2 | 2,2 g/m2 | 4,9 g/m2 |
Kristallit-Kantenlänge | 40 µm | 10 µm | 20 bis 25 µm |
Mindestphosphatierzeit | 120 sec | 60 sec | 60 sec |
Beispiel 3 | Beispiel 4 | |
Zn2+ | 1,4 g/l | 1,9 g/l |
Ni2+ | 1,0 g/l | 1,0 g/l |
Mn2+ | 1,0 g/l | 1,0 g/l |
P2O5 (gesamt) | 12,0 g/l | 12,0 g/l |
S-Wert | 0,09 | 0,09 |
NO3 - | 3,0 g/l | 3,0 g/l |
Nitroguanidin | 0,5 g/l | 0,9 g/l |
Na+ | die für Titrationsdaten-Einstellung erforderlicheMenge | |
Vollständige, geschlossene Phosphatschicht | ja | ja |
Flugrostbildung | nein | nein |
Vergleichsversuch D | Vergleichsversuch E | |
Zn2+ | 1,4 g/l | 1,9 g/l |
Ni2+ | 1,0 g/l | 1,0 g/l |
Mn2+ | 1,0 g/l | 1,0 g/l |
P2O5 (gesamt) | 12,0 g/l | 12,0 g/l |
S-Wert | 0,09 | 0,09 |
NO3 - | 3,0 g/l | 3,0 g/l |
Hydroxylamin | 1,0 g/l | 1,0 g/l |
Na+ | die für Titrationsdaten-Einstellung erforderliche Menge | |
Vollständige, geschlossene Phosphatschicht | nein | nein |
Flugrostbildung | ja | nein |
Lackhaftungsprüfwerte, Tauchanwendung | |||||
Substrat | Beispiele | Vergleichsversuche | |||
5 | 6 | 7 | F | G | |
Freibewitterung 6 Monate, mm Unterwanderung, einseitig vom Ritz gemessen. | |||||
Stahl | <1 | <1 | 1,5 | <1 | 2,5 |
Elektrolytisch verzinkter Stahl | 1 | 1 | 1 | 1,5 | 2,5 |
Feuerverzinkter Stahl | 0 | <1 | 1 | 0 | <1 |
Stahl mit Fe-Zn-Schicht | <1 | <1 | <1 | <1 | <1 |
AlMgSi, ungeschliffen | 3 | 0 | 0 | <1 bis 3 | -- |
AlMgSi, geschliffen | 5 | <1 | 0 | 4 | - |
Salzsprühnebelprüfung, 1008 h, nach DIN 50021 SS, mm Unterwanderung | |||||
Stahl | <1 | <1 | 1,5 | <1 | 1 |
12-Runden-Klimawechseltest gemäß VDA 621-415, Unterwanderung in mm, einseitig vom Ritz gemessen, und anschließender Steinschlag gemäß Spezifikation der VW AG, % Lackabplatzung, in ( ) angegeben | |||||
Stahl | <1 (0,5) | <1 (0,5) | 1,5 (0,5) | <1 (1) | 2 (1) |
Elektrolytisch verzinkter Stahl | 6,5 (1,5) | 7 (8,5) | 7 (5) | 5,5 (2) | 8 (40) |
Feuerverzinkter Stahl | 1,5 (0,5) | 2 (7) | 2 (2) | 1 (0,5) | 2,5 (15) |
Stahl mit Fe-Zn-Schicht | 1 (0,5) | 1 (0,5) | 1 (0,5) | 1 (0,5) | 1 (0,5) |
Lackhaftungsprüfwerte, Spritzanwendung | ||||
Substrat | Beispiele | Vergleichsversuch | ||
8 | 9 | 10 | H | |
Freibewitterung 6 Monate, mm Unterwanderung, einseitig vom Ritz gemessen. | ||||
Stahl | <1 | 1 | <1 | <1 |
Elektrolytisch verzinkter Stahl | <1 | 1,5 | 1,5 | 1,5 |
Feuerverzinkter Stahl | 0 | 0 | 0 | 0 |
Stahl mit Fe-Zn-Schicht | 0 | <1 | <1 | <1 |
AlMgSi, ungeschliffen | 0 | 0 | 0 | 2 |
AlMgSi, geschliffen | 0 | 0 | 2,5 | 5 |
Salzsprühnebelprüfung, 1008 h, nach DIN 50021 SS, mm Unterwanderung | ||||
Stahl | <1 | <1 | <1 | <1 |
Gitterschnitt nach 240 h gemäß DIN 50017 KK und DIN / ISO 2409, Note | ||||
Stahl | 1 2 | 1 | 1 | |
Elektrolytisch verzinkter Stahl | 1 | 1 | 1-2 | 1 |
Feuerverzinkter Stahl | 1 | 1 | 2 | 1 |
Stahl mit Fe-Zn-Schicht | 1 | 1 | 1 | 1 |
AlMgSi, ungeschliffen | 1 | 0 | 3 | 1 |
AlMgSi, geschliffen | 1 | 0-1 | 3 | 1 |
12-Runden-Klimawechseltest gemäß VDA 621-415, Unterwanderung in mm, einseitig vom Ritz gemessen, und anschließender Steinschlag gemäß Spezifikation der VW AG, % Lackabplatzung, in ( ) angegeben | ||||
Stahl | <1 (2) | 1 (5) | <1 (2) | <1 (2) |
Elektrolytisch verzinkter Stahl | 5 (5,5) | 5,5 (9) | 6 (14) | 5,5 (4) |
Feuerverzinkter Stahl | 1,5 (1) | 2,5 (2) | 2,5 (1,5) | 1,5 (1) |
Stahl mit Fe-Zn-Schicht | 1 (1) | 1 (2) | 1 (1) | 1 (1) |
Stoff/Wert | Beispiele | Vergleichsversuche | |||
5 | 6 | 7 | F | G | |
Zn2+ | 1,4 g/l | 1,4 g/l | 1,4 g/l | 1,4 g/l | 3,5 g/l |
Mn2+ | 1,0 g/l | 1,0 g/l | 1,0 g/l | 1,0 g/l | -- |
Ni2+ | 1,0 g/l | -- | -- | 1,0 g/l | -- |
Cu2+ | -- | 8 mg/l | -- | -- | -- |
NO3 - | 3,0 g/l | 3,0 g/l | 3,0 g/l | 3,0 g/l | 3,0 g/l |
P2O5 (gesamt) | 13,5 g/l | 13,5 g/l | 13,5 g/l | 12,0 g/l | 5,5 g/l |
Nitroguanidin | 0,5 g/l | 0,5 g/l | 0,5 g/l | -- | 2 g/l |
NO2 - | -- | -- | -- | 170 mg/l | -- |
S-Wert | 0,09 | 0,09 | 0,09 | 0,09 | 0,35 |
Stoff/Wert | Beispiele | Vergleichsversuch | ||
8 | 9 | 10 | H | |
Zn2+ | 0,9 g/l | 0,9 g/l | 0,9 g/l | 0,9 g/l |
Mn2+ | 1,0 g/l | 1,0 g/l | 1,0 g/l | 1,0 g/l |
Ni2+ | 1,0 g/l | -- | -- | 1,0 g/l |
Cu2+ | -- | 5 mg/l | -- | -- |
NO3 - | 3,0 g/l | 3,0 g/l | 3,0 g/l | 3,0 g/l |
P2O5 (gesamt) | 11 g/l | 11 g/l | 11 g/l | 11 g/l |
Nitroguanidin | 0,5 g/l | 0,5 g/l | 0,5 g/l | -- |
NO2 - | -- | -- | -- | 150 mg/l |
S-Wert | 0,07 | 0,07 | 0,07 | 0,07 |
Claims (17)
- Wässrige, phosphathaltige Lösung zur Erzeugung von Phosphatschichten auf metallischen Oberflächen aus Eisen, Stahl, Zink, Zinklegierungen, Aluminium oder Aluminiumlegierungen, die Zink, Phosphat sowie Nitroguanidin als Beschleuniger enthält, dadurch gekennzeichnet, daß die Lösung 0,3 bis 5 g Zn 2+ /l und 0,1 bis 3 g Nitroguanidin / l enthält, wobei der S-Wert 0,03 bis 0,3 und das Gewichtsverhältnis Zn zu P2O5 = 1 : 5 bis 1 : 30 beträgt, wobei der S-Wert das Verhältnis von freier Säure, berechnet als freies P2O5 , zum Gesamt- P2O5 angibt und wobei die Lösung feinkristalline Phosphatschichten erzeugt, in denen die Kristallite eine maximale Kantenlänge < 15µm haben.
- Wässrige Lösung nach Anspruch 1, dadurch gekennzeichnet, daß die Lösung 0,3 bis 3 g Zn 2+ /l enthält.
- Wässrige Lösung nach den Ansprüchen 1 bis 2, dadurch gekennzeichnet, daß die Lösung 0,5 bis 20 g NO3 -/l enthält.
- Wässrige Lösung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Lösung 0,01 bis 3 g Mn2+ /l und/oder 0,01 bis 3 g Ni 2+ /l und/oder 1 bis 100 mg Cu 2+ /l und/oder 10 bis 300 mg Co 2+ /l enthält.
- Wässrige Lösung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß die Lösung 0,01 bis 3 g F- /l und/oder 0,05 bis 3,5 g/l mindestens eines komplexen Fluorids enthält.
- Wässrige Lösung nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß die Lösung als komplexes Fluorid (SiF6)2- oder (BF4)- enthält.
- Verfahren zur Phosphatierung, dadurch gekennzeichnet, daß die metallischen Oberflächen gereinigt, anschließend mit der wässrigen, phosphathaltigen Lösung gemäß den Ansprüchen 1 bis 6 während einer Zeit von 5 Sekunden bis 10 Minuten bei einer Temperatur von 15 bis 70'C behandelt und schließlich mit Wasser gespült werden.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß die Behandlung der metallischen Oberflächen mit der Phosphatierungslösung durch Spritzen, Tauchen, Spritztauchen oder Aufwalzen erfolgt.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die zum Spritzen verwendete Phosphatierungslösung ein Gewichtsverhältnis Zn zu P2O5 = 1 : 10 bis 1 : 30 aufweist.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die zum Tauchen verwendete Phosphatierungslösung ein Gewichtsverhältnis Zn zu P2O5 = 1 : 5 bis 1 : 18 aufweist.
- Verfahren nach den Ansprüchen 7 bis 10, dadurch gekennzeichnet, daß die metallischen Oberflächen nach der Reinigung mit einem Aktivierungsmittel behandelt werden, das ein titanhaltiges Phosphat enthält.
- Verfahren nach den Ansprüchen 7 bis 11, dadurch gekennzeichnet, daß die metallischen Oberflächen nach dem der Phosphatierung folgenden Spülvorgang mit einem Passivierungsmittel nachbehandelt werden.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß das Nitroguanidin in die wässrige Lösung in Form einer stabilen, wässrigen Suspension eingebracht wird.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß die stabile, wässrige Suspension als Stabilisator ein Schichtsilikat enthält.
- Verfahren nach Anspruch 14, dadurch gekennzeichnet, daß als Stabilisator die Schichtsilikate [Mg6 (Si7,4 Al0,6) O20 (OH)4] Na0,6 x XH2O und [(Mg5,4 Li0,6) Si8 O20 (OH3 F)4 ] Na0,6 x XH2O in einer Menge von 10 bis 30 g/l Nitroguanidin-Suspension verwendet werden.
- Verwendung der wässrigen, phosphathaltigen Lösung nach den Ansprüchen 1 bis 6 und des Verfahrens zur Phosphatierung nach den Ansprüchen 7 bis 15 zur Behandlung von Werkstücken vor der Lackierung.
- Verwendung nach Anspruch 16 zur Behandlung von Werkstücken vor der Elektrotauchlackierung.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SI9730079T SI0922123T1 (en) | 1996-08-28 | 1997-08-11 | Process and aqueous solution for phosphatising metallic surfaces |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE19634685 | 1996-08-28 | ||
DE19634685A DE19634685A1 (de) | 1996-08-28 | 1996-08-28 | Wässrige Lösung und Verfahren zur Phosphatierung metallischer Oberflächen |
PCT/EP1997/004360 WO1998008999A1 (de) | 1996-08-28 | 1997-08-11 | Wässrige lösung und verfahren zur phosphatierung metallischer oberflächen |
Publications (2)
Publication Number | Publication Date |
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EP0922123A1 EP0922123A1 (de) | 1999-06-16 |
EP0922123B1 true EP0922123B1 (de) | 2000-07-26 |
Family
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EP97943803A Expired - Lifetime EP0922123B1 (de) | 1996-08-28 | 1997-08-11 | Wässrige lösung und verfahren zur phosphatierung metallischer oberflächen |
Country Status (25)
Country | Link |
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US (1) | US6261384B1 (de) |
EP (1) | EP0922123B1 (de) |
JP (1) | JP3940174B2 (de) |
KR (1) | KR100473779B1 (de) |
CN (1) | CN1080325C (de) |
AR (1) | AR009336A1 (de) |
AT (1) | ATE195005T1 (de) |
AU (1) | AU720551B2 (de) |
BR (1) | BR9713177A (de) |
CA (1) | CA2264568C (de) |
CZ (1) | CZ294673B6 (de) |
DE (2) | DE19634685A1 (de) |
DK (1) | DK0922123T3 (de) |
ES (1) | ES2150791T3 (de) |
GR (1) | GR3034297T3 (de) |
HU (1) | HU228330B1 (de) |
IN (1) | IN192301B (de) |
PL (1) | PL192285B1 (de) |
PT (1) | PT922123E (de) |
SI (1) | SI0922123T1 (de) |
SK (1) | SK283857B6 (de) |
TR (1) | TR199900426T2 (de) |
TW (1) | TW363089B (de) |
WO (1) | WO1998008999A1 (de) |
ZA (1) | ZA977706B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004104266A1 (de) * | 2003-05-23 | 2004-12-02 | Chemetall Gmbh | Verfahren und lösung zur beschichtung von metallischen oberflächen mit einer wasserstoffperoxid enthaltenden phosphatierungslösung, hergestellte metallgenstand und verwendung des gegenstandes |
US8349092B2 (en) | 2002-07-10 | 2013-01-08 | Chemetall Gmbh | Process for coating metallic surfaces |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19808440C2 (de) | 1998-02-27 | 2000-08-24 | Metallgesellschaft Ag | Wässrige Lösung und Verfahren zur Phosphatierung metallischer Oberflächen sowie eine Verwendung der Lösung und des Verfahrens |
DE19834796A1 (de) | 1998-08-01 | 2000-02-03 | Henkel Kgaa | Verfahren zur Phosphatierung, Nachspülung und kathodischer Elektrotauchlackierung |
DE19857799A1 (de) | 1998-12-15 | 2000-06-21 | Henkel Kgaa | Verfahren zum Steuern einer Behandlungslinie |
DE19911843C2 (de) * | 1999-03-17 | 2001-05-10 | Metallgesellschaft Ag | Verfahren für den Korrosionsschutz von Aluminium und Aluminiumlegierungen sowie Verwendung des Verfahrens |
US20040118483A1 (en) * | 2002-12-24 | 2004-06-24 | Michael Deemer | Process and solution for providing a thin corrosion inhibiting coating on a metallic surface |
US20040188323A1 (en) * | 2003-03-24 | 2004-09-30 | Tzatzov Konstantin K. | Active coating system for reducing or eliminating coke build-up during petrochemical processes |
DE10320313B4 (de) * | 2003-05-06 | 2005-08-11 | Chemetall Gmbh | Verfahren zum Beschichten von metallischen Körpern mit einer Phosphatierungslösung, Phosphatierungslösung und die Verwendung des beschichteten Gegenstandes |
CN1314836C (zh) * | 2004-08-02 | 2007-05-09 | 吉林大学 | 镁合金磷化溶液及其磷化工艺 |
CN101693993B (zh) * | 2009-09-27 | 2011-03-30 | 上海大学 | 碳钢表面磷化处理液及镀镍封闭方法 |
CN107338428B (zh) * | 2017-06-02 | 2019-01-11 | 余卫民 | 钴、锌、铁三元体系磷酸盐金属表面处理剂、制备方法及复合沉积物 |
RU2690876C1 (ru) * | 2018-06-14 | 2019-06-06 | Закрытое Акционерное общество "ФК" (ЗАО " ФК") | Способ получения фосфатного покрытия |
CN109518176B (zh) * | 2018-12-14 | 2021-09-24 | 上海大学 | 碱性磷化液、制备方法及磷化处理工艺 |
CN110699681B (zh) * | 2019-10-24 | 2021-12-14 | 河南北方红阳机电有限公司 | 一种高强度钢和硬铝合金组合体喷淋磷化工艺 |
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DE977633C (de) * | 1950-07-06 | 1967-11-02 | Galvapol Ges Fuer Galvanotechn | Verfahren zur Herstellung von Phosphatueberzuegen auf eisenhaltigen Metallgegenstaenden |
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BE432557A (de) * | 1938-02-04 | |||
US2375468A (en) * | 1938-02-04 | 1945-05-08 | Parker Rust Proof Co | Phosphate coating of metals |
DE821907C (de) * | 1943-06-07 | 1951-11-22 | Pyrene Co Ltd | Mittel fuer die Herstellung von Phosphatueberzuegen auf Metallen |
US3855147A (en) * | 1972-05-26 | 1974-12-17 | Nl Industries Inc | Synthetic smectite compositions, their preparation, and their use as thickeners in aqueous systems |
GB2080835B (en) * | 1980-07-25 | 1984-08-30 | Pyrene Chemical Services Ltd | Prevention of sludge in phosphating baths |
DE3800835A1 (de) * | 1988-01-14 | 1989-07-27 | Henkel Kgaa | Verfahren zur phosphatierung von metalloberflaechen |
US5268041A (en) * | 1990-04-27 | 1993-12-07 | Metallgesellschaft Ag | Process for phosphating metal surfaces |
-
1996
- 1996-08-28 DE DE19634685A patent/DE19634685A1/de not_active Withdrawn
-
1997
- 1997-08-11 AT AT97943803T patent/ATE195005T1/de active
- 1997-08-11 DK DK97943803T patent/DK0922123T3/da active
- 1997-08-11 EP EP97943803A patent/EP0922123B1/de not_active Expired - Lifetime
- 1997-08-11 JP JP51122398A patent/JP3940174B2/ja not_active Expired - Lifetime
- 1997-08-11 AU AU45516/97A patent/AU720551B2/en not_active Expired
- 1997-08-11 SI SI9730079T patent/SI0922123T1/xx unknown
- 1997-08-11 BR BR9713177-6A patent/BR9713177A/pt not_active IP Right Cessation
- 1997-08-11 CZ CZ1999680A patent/CZ294673B6/cs not_active IP Right Cessation
- 1997-08-11 PL PL331883A patent/PL192285B1/pl unknown
- 1997-08-11 CN CN97198243A patent/CN1080325C/zh not_active Expired - Lifetime
- 1997-08-11 ES ES97943803T patent/ES2150791T3/es not_active Expired - Lifetime
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Patent Citations (1)
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DE977633C (de) * | 1950-07-06 | 1967-11-02 | Galvapol Ges Fuer Galvanotechn | Verfahren zur Herstellung von Phosphatueberzuegen auf eisenhaltigen Metallgegenstaenden |
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DR. WERNER RAUSCH: "Die Phosphatierung von Metallen, Seiten 299-304", EUGEN G. LEUZE VERLAG, 1988 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8349092B2 (en) | 2002-07-10 | 2013-01-08 | Chemetall Gmbh | Process for coating metallic surfaces |
WO2004104266A1 (de) * | 2003-05-23 | 2004-12-02 | Chemetall Gmbh | Verfahren und lösung zur beschichtung von metallischen oberflächen mit einer wasserstoffperoxid enthaltenden phosphatierungslösung, hergestellte metallgenstand und verwendung des gegenstandes |
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