EP0459550A1 - Procédé de rinçage de couches de conversion - Google Patents

Procédé de rinçage de couches de conversion Download PDF

Info

Publication number: EP0459550A1
Authority: EP; European Patent Office
Prior art keywords: solutions; rinsed; conversion layers; rinsing; aluminum
Prior art date: 1990-05-29
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

Application number

EP91201021A

Other languages

German (de)

English (en)

Other versions

EP0459550B1 (fr

Inventor

Thomas Kolberg

Werner Dr. Rausch

Peter Dr. Schubach

Thomas Wendel

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Chemetall GmbH

Original Assignee

Metallgesellschaft AG

Continentale Parker Ste

Continentale Parker SA

Priority date (The priority date 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 date listed.)

1990-05-29

Filing date

1991-04-29

Publication date

1991-12-04

1991-04-29 Application filed by Metallgesellschaft AG, Continentale Parker Ste, Continentale Parker SA filed Critical Metallgesellschaft AG

1991-12-04 Publication of EP0459550A1 publication Critical patent/EP0459550A1/fr

1993-12-01 Application granted granted Critical

1993-12-01 Publication of EP0459550B1 publication Critical patent/EP0459550B1/fr

2011-04-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 28
238000007739 conversion coating Methods 0.000 title description 3
239000000243 solution Substances 0.000 claims abstract description 33
238000006243 chemical reaction Methods 0.000 claims abstract description 22
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 19
229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
229910052726 zirconium Inorganic materials 0.000 claims abstract description 12
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 10
229910000838 Al alloy Inorganic materials 0.000 claims abstract description 9
239000011248 coating agent Substances 0.000 claims abstract description 9
238000000576 coating method Methods 0.000 claims abstract description 9
KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 8
-1 hafnium ions Chemical class 0.000 claims abstract description 8
239000010936 titanium Substances 0.000 claims abstract description 7
229910052719 titanium Inorganic materials 0.000 claims abstract description 6
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 5
239000007864 aqueous solution Substances 0.000 claims abstract description 5
229910052735 hafnium Inorganic materials 0.000 claims abstract description 5
239000000853 adhesive Substances 0.000 claims abstract description 4
230000001070 adhesive effect Effects 0.000 claims abstract description 4
239000007888 film coating Substances 0.000 claims description 3
238000009501 film coating Methods 0.000 claims description 3
238000010422 painting Methods 0.000 claims description 3
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
150000001768 cations Chemical class 0.000 claims description 2
SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 claims description 2
WWZKQHOCKIZLMA-UHFFFAOYSA-M octanoate Chemical compound CCCCCCCC([O-])=O WWZKQHOCKIZLMA-UHFFFAOYSA-M 0.000 claims description 2
YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 claims description 2
229960001860 salicylate Drugs 0.000 claims description 2
GSEJCLTVZPLZKY-UHFFFAOYSA-O triethanolammonium Chemical compound OCC[NH+](CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-O 0.000 claims description 2
239000012487 rinsing solution Substances 0.000 abstract description 6
239000004411 aluminium Substances 0.000 abstract 2
239000011888 foil Substances 0.000 abstract 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
230000007797 corrosion Effects 0.000 description 5
238000005260 corrosion Methods 0.000 description 5
239000003973 paint Substances 0.000 description 4
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
229920001665 Poly-4-vinylphenol Polymers 0.000 description 3
KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
239000004922 lacquer Substances 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
239000000463 material Substances 0.000 description 3
150000003839 salts Chemical class 0.000 description 3
229920001864 tannin Polymers 0.000 description 3
239000001648 tannin Substances 0.000 description 3
235000018553 tannin Nutrition 0.000 description 3
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
229910019142 PO4 Inorganic materials 0.000 description 2
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
239000002253 acid Substances 0.000 description 2
230000002378 acidificating effect Effects 0.000 description 2
150000001252 acrylic acid derivatives Chemical class 0.000 description 2
229910052796 boron Inorganic materials 0.000 description 2
230000007547 defect Effects 0.000 description 2
239000008367 deionised water Substances 0.000 description 2
229910021641 deionized water Inorganic materials 0.000 description 2
150000002222 fluorine compounds Chemical class 0.000 description 2
JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
239000000203 mixture Substances 0.000 description 2
239000005011 phenolic resin Substances 0.000 description 2
235000021317 phosphate Nutrition 0.000 description 2
229920000728 polyester Polymers 0.000 description 2
239000007787 solid Substances 0.000 description 2
230000001954 sterilising effect Effects 0.000 description 2
238000004659 sterilization and disinfection Methods 0.000 description 2
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
239000004593 Epoxy Substances 0.000 description 1
BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-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
229920001944 Plastisol Polymers 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
239000013543 active substance Substances 0.000 description 1
238000005275 alloying Methods 0.000 description 1
AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
229910021529 ammonia Inorganic materials 0.000 description 1
150000001450 anions Chemical class 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
239000003788 bath preparation Substances 0.000 description 1
230000003115 biocidal effect Effects 0.000 description 1
239000003139 biocide Substances 0.000 description 1
238000009835 boiling Methods 0.000 description 1
230000015556 catabolic process Effects 0.000 description 1
ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
239000011651 chromium Substances 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
239000012141 concentrate Substances 0.000 description 1
238000009833 condensation Methods 0.000 description 1
230000005494 condensation Effects 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
238000006731 degradation reaction Methods 0.000 description 1
238000007598 dipping method Methods 0.000 description 1
238000001035 drying Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
125000003700 epoxy group Chemical group 0.000 description 1
VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
239000004310 lactic acid Substances 0.000 description 1
235000014655 lactic acid Nutrition 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000011777 magnesium Substances 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
150000002823 nitrates Chemical class 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
238000004806 packaging method and process Methods 0.000 description 1
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
239000010452 phosphate Substances 0.000 description 1
150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
238000005554 pickling Methods 0.000 description 1
239000004999 plastisol Substances 0.000 description 1
229920000647 polyepoxide Polymers 0.000 description 1
229920002981 polyvinylidene fluoride Polymers 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
230000005855 radiation Effects 0.000 description 1
238000005096 rolling process Methods 0.000 description 1
239000010703 silicon Substances 0.000 description 1
229910052710 silicon Inorganic materials 0.000 description 1
239000011780 sodium chloride Substances 0.000 description 1
238000005507 spraying Methods 0.000 description 1
239000010959 steel Substances 0.000 description 1
239000000758 substrate Substances 0.000 description 1
239000002351 wastewater Substances 0.000 description 1
238000004065 wastewater treatment Methods 0.000 description 1
239000011701 zinc Substances 0.000 description 1
229910052725 zinc Inorganic materials 0.000 description 1
XJUNLJFOHNHSAR-UHFFFAOYSA-J zirconium(4+);dicarbonate Chemical compound [Zr+4].[O-]C([O-])=O.[O-]C([O-])=O XJUNLJFOHNHSAR-UHFFFAOYSA-J 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
- C23C22/36—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
- C23C22/361—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates containing titanium, zirconium or hafnium compounds
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment

Definitions

the invention relates to a method for rinsing conversion surfaces generated on surfaces made of aluminum or aluminum alloys with solutions based on titanium, zirconium and / or hafnium ions, and its use as a pretreatment for a subsequent painting, film coating or adhesive coating.
conversion layers on aluminum or aluminum alloy surfaces in particular as pretreatment before the application of an organic coating, is carried out industrially on a large scale.
Conversion layers of this type prevent or make it more difficult for corrosion to occur and, in the case of an organic coating, serve to improve the adhesion of the applied coating.
the widespread chromate coatings generally meet these requirements to a sufficient extent; for reasons of workplace hygiene, environmental protection or because the treated material for special purposes, e.g. as food packaging, however, the generation of chrome-free conversion layers is increasingly preferred.
the treatment solutions used for this are generally adjusted to an acidic pH and contain e.g. Titanium, fluoride, phosphate and tannin (U.S. Patent 4,017,334) or zirconium, fluoride and boron (U.S. Patent 3,964,936).
a treatment solution containing hafnium and fluoride is described in FR-PS 2 417 537.
the properties of the conversion layers generated can be further improved if a passivating rinsing is subsequently carried out.
Chromium-free treatment solutions which usually contain organic active substances, are also preferred for rinsing.
Such a rinse aid based on polyvinylphenol is described in US-A 4,376,000. However, it causes a pollution of the wastewater, in particular due to the high oxygen demand, which is necessary for the degradation of the organic component.
the object of the invention is to provide a method for passivating rinsing of chrome-free conversion layers on aluminum or aluminum alloy surfaces, which does not have the disadvantage of rinsing solutions with organic components with regard to waste water treatment, but improves corrosion protection and paint adhesion in at least the same way.
the object is achieved by designing the method of the type mentioned at the outset in accordance with the invention in such a way that the conversion layers are rinsed with aqueous solutions which contain aluminum, zirconium and fluoride and are adjusted to a pH ⁇ 5.
the method according to the invention is suitable for the passivating rinsing of conversion layers which have been produced on aluminum or aluminum alloy surfaces, wherein the materials can consist of solid aluminum or solid aluminum alloy or objects plated therewith, for example, in the hot-dip method.
the material can be made of steel, which has been provided with an aluminum or aluminum alloy surface using the hot-dip method.
Suitable alloying partners for aluminum are especially silicon, manganese, magnesium, zinc and copper.
the conversion layers produced on such surfaces with solutions based on Ti, Zr and / or Hf are distinguished by the fact that the layer thickness is clearly below 1 ⁇ m, the layers are at least partially amorphous and that they contain no chromium.
the treatment solutions by means of which the conversion layers are produced contain, in addition to titanium, zirconium and / or hafnium ions, further layer-forming and / or pickling components, such as e.g. Fluorides, phosphates, compounds of boron, and possibly passivating components such as Tannins. Suitable treatment solutions are described in the patents mentioned at the beginning.
the surface is expediently rinsed with water after the conversion layer has been produced.
the application of the rinse solution can e.g. by dipping, flooding, spraying or rolling.
a preferred embodiment of the invention consists in rinsing with a solution which contains aluminum, zirconium and fluoride in a total concentration Al + Zr + F between 0.1 and 8 g / l, preferably between 0.2 and 5 g / l.
the molar ratios Al: Zr: F should advantageously be set to (0.15 to 8): 1: (5 to 52), in particular to (0.15 to 2.0): 1: (5 to 16).
the Al: Zr: F ratio in the rinse solution is (0.15 to 0.67): 1: (5 to 7).
the pH is set to 2 to 5.
the rinse solutions used in the method according to the invention contain, inter alia, acidic aluminum fluorozirconates and, in the case of an excess of aluminum, other salts of aluminum (e.g. fluorides, tetrafluoroborates, nitrates).
Their manufacture can e.g. in such a way that metallic zirconium or zirconium carbonate is first dissolved in aqueous hydrofluoric acid, complex fluorozirconic acid being formed. Then metallic aluminum or aluminum hydroxide or an aluminum salt, e.g. Nitrate, fluoride, tetrafluoroborate, formate, acetate, preferably in dissolved form, are added and, if necessary, dissolved. A possible slight clouding of the solution does not impair the effectiveness.
the solutions can also be prepared in other ways.
the pH of the solution is preferably adjusted with cations of volatile bases. These include in particular ammonium, ethanolammonium and di- and tri-ethanolammonium.
volatile bases include in particular ammonium, ethanolammonium and di- and tri-ethanolammonium.
the surfaces provided with a conversion coating are rinsed with an aqueous solution which additionally contain at least one of the anions benzoate, caprylate, ethylhexoate, salicylate in a total concentration of preferably 0.05 to 0.5 g / l.
anions can be introduced via the corresponding acids or their salts.
the duration of the application of the rinse solution is between approximately 1 and 120 seconds, in particular between 1 and 30 seconds.
the application temperature can be between 20 ° C and about 80 ° C. Temperatures between 20 and 50 ° C are preferred.
Demineralized or low-salt water is preferably used for the preparation of the rinse bath. Water with a high salt content is less suitable for bath preparation.
the surface can e.g. air-dried or oven-dried, if necessary rinsed with deionized water beforehand.
An advantageous embodiment of the invention provides that the surface is accelerated after the passivating rinsing, e.g. dry with hot air or infrared radiation.
the method according to the invention primarily serves to pretreat the aluminum or aluminum alloy surfaces before painting, film coating or applying adhesives.
organic coating agents used are polyesters, silicone-modified polyesters, polyvinylidene fluorides, acrylates, epoxies, epoxy-phenol resins, plastisols or organosols (e.g. PVC or acrylates).
the advantage of the method according to the invention is, in particular, the increase in the adhesion of the organic films to the metallic substrate, as is the case, for example, by correspondingly good results in the T-Bend test (ISO 1519-1973) or in the feathering test (paint adhesion when opening can closures ) is expressed.
the durability of the organic films Corrosion stress, e.g. increased in a condensation water constant climate test (DIN 50 017 KK) or a sterilization test.
the method according to the invention improves the corrosion resistance of the non-organically coated surface, as can be seen, for example, in the test for fountain blackness (no blackening when boiling in water).
the sheets were then rinsed with water and rinsed passively. For this purpose, the sheets were immersed in the rinse solution for 5 seconds and then excess solution was removed by squeezing. After a drying time of 0.5 min in a convection oven at 60 ° C, the sheets were coated with a two-layer food lacquer, the first layer of which is an epoxy-phenol resin and the second layer of which is an organosol. The layer thickness of the total paint was between 10 and 15 ⁇ m.
the rinsing solution used was diluted 1.6 g / l (rinsing solution A) or 3.2 g / l (rinsing solution B) of an aqueous concentrate with 0.855 wt .-% Al and 8.62 wt .-% Zr and 10.7 wt% F made using deionized water.
the pH in both solutions had been adjusted to approximately 3.6 with ammonia.
composition of the rinse solutions used in the process according to the invention was:

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Chemical & Material Sciences (AREA)
General Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Chemical Treatment Of Metals (AREA)
Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Laminated Bodies (AREA)

EP91201021A 1990-05-29 1991-04-29 Procédé de rinçage de couches de conversion Expired - Lifetime EP0459550B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4017187A DE4017187A1 (de)	1990-05-29	1990-05-29	Verfahren zur nachspuelung von konversionsschichten
DE4017187		1990-05-29

Publications (2)

Publication Number	Publication Date
EP0459550A1 true EP0459550A1 (fr)	1991-12-04
EP0459550B1 EP0459550B1 (fr)	1993-12-01

Family

ID=6407364

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91201021A Expired - Lifetime EP0459550B1 (fr)	1990-05-29	1991-04-29	Procédé de rinçage de couches de conversion

Country Status (8)

Country	Link
EP (1)	EP0459550B1 (fr)
JP (1)	JP3083873B2 (fr)
AU (1)	AU634652B2 (fr)
BR (1)	BR9102174A (fr)
CA (1)	CA2041891C (fr)
DE (2)	DE4017187A1 (fr)
ES (1)	ES2047370T3 (fr)
ZA (1)	ZA914086B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1994028193A1 (fr) *	1993-05-24	1994-12-08	Henkel Kommanditgesellschaft Auf Aktien	Traitement de revetement par conversion sans chrome pour l'aluminium
EP0795044A4 (fr) *	1995-01-10	1998-04-29	Circle Prosco Inc	Procede de revetements de surfaces metalliques, destine a produire une surface fortement hydrophile et fortement resistante a la corrosion, qui est bioresistante et qui degage peu d'odeurs
US6749694B2 (en)	2002-04-29	2004-06-15	Ppg Industries Ohio, Inc.	Conversion coatings including alkaline earth metal fluoride complexes
US7402214B2 (en)	2002-04-29	2008-07-22	Ppg Industries Ohio, Inc.	Conversion coatings including alkaline earth metal fluoride complexes

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH06322287A (ja) *	1993-05-14	1994-11-22	Nippon Parkerizing Co Ltd	表面処理された複合アルミニウムパウダー、およびそれを用いる表面処理された複合アルミニウムフレークの製造方法
IT1273111B (it) *	1994-04-07	1997-07-04	Skf Ind Spa	Procedimento di preassemblaggio di un anello magnetizzato multipolare, in particolare per l'applicazione in dispositivi di rilevamento della velocita' di rotazione, e prodotto relativo
JP4612321B2 (ja)	2003-04-04	2011-01-12	株式会社東芝	非水電解質二次電池
DE102016206417A1 (de)	2016-04-15	2017-10-19	Henkel Ag & Co. Kgaa	Fördergestellbehandlung zur unterdrückung anlagenbedingter phosphatüberschleppung in einer prozessfolge zur tauchlackierung
DE102016206418A1 (de) *	2016-04-15	2017-10-19	Henkel Ag & Co. Kgaa	Unterdrückung anlagenbedingter phosphatüberschleppung in einer prozessfolge zur tauchlackierung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3850732A (en) *	1970-12-02	1974-11-26	Amchem Prod	Zirconium rinse for phosphate coated metal surfaces
FR2232615A1 (fr) *	1973-06-11	1975-01-03	Pennwalt Corp
FR2236907A1 (fr) *	1973-07-13	1975-02-07	Amchem Prod
US4370177A (en) *	1980-07-03	1983-01-25	Amchem Products, Inc.	Coating solution for metal surfaces
US4462842A (en) *	1979-08-13	1984-07-31	Showa Aluminum Corporation	Surface treatment process for imparting hydrophilic properties to aluminum articles
EP0161667A1 (fr) *	1984-05-18	1985-11-21	PARKER CHEMICAL COMPANY (a Delaware company)	Procédé de traitement de surfaces métalliques
EP0356855A2 (fr) *	1988-08-27	1990-03-07	Gerhard Collardin Gmbh	Prétraitement de surfaces en aluminium ou alliages d'aluminium à revêtir avec des matériaux organiques sans utilisation de chrome
EP0410497A1 (fr) *	1989-07-28	1991-01-30	METALLGESELLSCHAFT Aktiengesellschaft	Procédé pour le rinçage passif de couches de phosphates

1990
- 1990-05-29 DE DE4017187A patent/DE4017187A1/de not_active Withdrawn
1991
- 1991-04-29 ES ES91201021T patent/ES2047370T3/es not_active Expired - Lifetime
- 1991-04-29 DE DE91201021T patent/DE59100650D1/de not_active Expired - Fee Related
- 1991-04-29 EP EP91201021A patent/EP0459550B1/fr not_active Expired - Lifetime
- 1991-04-29 AU AU76180/91A patent/AU634652B2/en not_active Ceased
- 1991-05-06 CA CA002041891A patent/CA2041891C/fr not_active Expired - Fee Related
- 1991-05-28 BR BR919102174A patent/BR9102174A/pt unknown
- 1991-05-28 JP JP03152483A patent/JP3083873B2/ja not_active Expired - Fee Related
- 1991-05-29 ZA ZA914086A patent/ZA914086B/xx unknown

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3850732A (en) *	1970-12-02	1974-11-26	Amchem Prod	Zirconium rinse for phosphate coated metal surfaces
FR2232615A1 (fr) *	1973-06-11	1975-01-03	Pennwalt Corp
FR2236907A1 (fr) *	1973-07-13	1975-02-07	Amchem Prod
US4462842A (en) *	1979-08-13	1984-07-31	Showa Aluminum Corporation	Surface treatment process for imparting hydrophilic properties to aluminum articles
US4370177A (en) *	1980-07-03	1983-01-25	Amchem Products, Inc.	Coating solution for metal surfaces
EP0161667A1 (fr) *	1984-05-18	1985-11-21	PARKER CHEMICAL COMPANY (a Delaware company)	Procédé de traitement de surfaces métalliques
EP0356855A2 (fr) *	1988-08-27	1990-03-07	Gerhard Collardin Gmbh	Prétraitement de surfaces en aluminium ou alliages d'aluminium à revêtir avec des matériaux organiques sans utilisation de chrome
EP0410497A1 (fr) *	1989-07-28	1991-01-30	METALLGESELLSCHAFT Aktiengesellschaft	Procédé pour le rinçage passif de couches de phosphates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1994028193A1 (fr) *	1993-05-24	1994-12-08	Henkel Kommanditgesellschaft Auf Aktien	Traitement de revetement par conversion sans chrome pour l'aluminium
EP0795044A4 (fr) *	1995-01-10	1998-04-29	Circle Prosco Inc	Procede de revetements de surfaces metalliques, destine a produire une surface fortement hydrophile et fortement resistante a la corrosion, qui est bioresistante et qui degage peu d'odeurs
US6749694B2 (en)	2002-04-29	2004-06-15	Ppg Industries Ohio, Inc.	Conversion coatings including alkaline earth metal fluoride complexes
US7402214B2 (en)	2002-04-29	2008-07-22	Ppg Industries Ohio, Inc.	Conversion coatings including alkaline earth metal fluoride complexes

Also Published As

Publication number	Publication date
CA2041891A1 (fr)	1991-11-30
EP0459550B1 (fr)	1993-12-01
JP3083873B2 (ja)	2000-09-04
ZA914086B (en)	1993-01-27
DE59100650D1 (de)	1994-01-13
AU634652B2 (en)	1993-02-25
JPH04231480A (ja)	1992-08-20
DE4017187A1 (de)	1991-12-05
BR9102174A (pt)	1991-12-24
AU7618091A (en)	1991-12-12
ES2047370T3 (es)	1994-02-16
CA2041891C (fr)	2001-07-31

Publication	Publication Date	Title
DE69129527T2 (de)	1998-11-26	Stahlblech mit verbesserter Korrosionbeständigkeit mit Silan-behandelter Silicatbeschichtung
EP1200641B1 (fr)	2003-12-17	Traitement prealable de surfaces d'aluminium a l'aide de solutions exemptes de chrome
DE3044942A1 (de)	1981-09-17	Verbundstoff aus metall und kunstharz und verfahren zu seiner herstellung
EP0356855B1 (fr)	1992-12-16	Prétraitement de surfaces en aluminium ou alliages d'aluminium à revêtir avec des matériaux organiques sans utilisation de chrome
DE2433704A1 (de)	1975-01-30	Metallbehandlungsmittel, verfahren zu ihrer herstellung und ihre anwendung
DE1933013B2 (de)	1977-12-29	Verfahren zur erzeugung von schutzschichten auf aluminium, eisen und zink mittels komplexe fluoride enthaltender loesungen
DE69015493T2 (de)	1995-06-08	Chemische Zusammensetzungen und Bad zur Oberflächenbehandlung von Aluminium oder Aluminiumlegierungen und Verfahren zur Oberflächenbehandlung.
DE3650659T2 (de)	1998-07-02	Verfahren zur Phosphatierung von Metalloberflächen
DE2446492A1 (de)	1975-04-17	Verfahren zur oberflaechenbehandlung von aluminium und aluminiumlegierungen
EP0410497B1 (fr)	1992-10-14	Procédé pour le rinçage passif de couches de phosphates
EP0492713A1 (fr)	1992-07-01	Procédé de post-rinçage de couches de conversion
EP0459550B1 (fr)	1993-12-01	Procédé de rinçage de couches de conversion
EP0359296A1 (fr)	1990-03-21	Procédé de phosphatation
DE69512049T2 (de)	2000-04-27	Zusammensetzung und verfahren zur oberflächenbehandlung aluminiumhaltiger metalle
EP0177086A1 (fr)	1986-04-09	Procédé pour le traitement de surfaces métalliques
DE69119138T2 (de)	1996-08-14	Verfahren zur Phosphatierung von Metalloberflächen
EP0036689A1 (fr)	1981-09-30	Procédé pour l'application de revêtements phosphatés
EP0264811B1 (fr)	1991-06-26	Procédé d'obtention de revêtements de phosphate
DE3875459T2 (de)	1993-03-25	Verfahren zum phosphatieren von metalloberflaechen.
EP0078866B1 (fr)	1985-10-30	Formation de revêtements sur des surfaces d'aluminium
DE2715291C3 (de)	1981-10-22	Verfahren zur Herstellung einses amorphen, leichten, fest haftenden Phosphatüberzugs auf Eisenmetalloberflächen
DE69103139T2 (de)	1995-02-02	Verfahren und zusammensetzungen zur konversionsbehandlung von aluminium und aluminiumlegierungen.
EP0815293B1 (fr)	1999-05-06	Procede sans chrome permettant d'ameliorer l'adherence d'une peinture ou d'un vernis applique(e) par anodisation en couche mince
DE1925029C3 (de)	1980-06-04	Verfahren zur Herstellung einer korrosionsfesten, Metallteilchen enthaltenden Chromatierungsschicht auf einem Grundmetall und deren Verwendung
EP0459549B1 (fr)	1994-08-17	Obtention de couches de conversion sur des surfaces en zinc ou en alliage de zinc

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EP0459550A1 - Procédé de rinçage de couches de conversion - Google Patents

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