EP0754251B1 - Chromfreies verfahren zur no-rinse behandlung von aluminium und seinen legierungen sowie hierfür geeignete wässrige badlösungen - Google Patents
Chromfreies verfahren zur no-rinse behandlung von aluminium und seinen legierungen sowie hierfür geeignete wässrige badlösungen Download PDFInfo
- Publication number
- EP0754251B1 EP0754251B1 EP95915174A EP95915174A EP0754251B1 EP 0754251 B1 EP0754251 B1 EP 0754251B1 EP 95915174 A EP95915174 A EP 95915174A EP 95915174 A EP95915174 A EP 95915174A EP 0754251 B1 EP0754251 B1 EP 0754251B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- treatment
- organic film
- treatment solution
- bis
- 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 31
- 229910052782 aluminium Inorganic materials 0.000 title claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 12
- 229910045601 alloy Inorganic materials 0.000 title claims description 6
- 239000000956 alloy Substances 0.000 title claims description 6
- 239000004411 aluminium Substances 0.000 title claims 2
- 239000000243 solution Substances 0.000 claims description 28
- 239000010936 titanium Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 239000012141 concentrate Substances 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 238000007739 conversion coating Methods 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 229920001519 homopolymer Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000003973 paint Substances 0.000 description 11
- 229920002125 Sokalan® Polymers 0.000 description 9
- 238000000576 coating method Methods 0.000 description 7
- 239000011651 chromium Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 150000002148 esters Chemical class 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- -1 fluoride ions Chemical class 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- JESXATFQYMPTNL-UHFFFAOYSA-N 2-ethenylphenol Chemical compound OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000004584 polyacrylic acid Substances 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- 238000004532 chromating Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910003638 H2SiF6 Inorganic materials 0.000 description 2
- 229910003708 H2TiF6 Inorganic materials 0.000 description 2
- 229910003899 H2ZrF6 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 229960002050 hydrofluoric acid Drugs 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- ZEFWRWWINDLIIV-UHFFFAOYSA-N tetrafluorosilane;dihydrofluoride Chemical compound F.F.F[Si](F)(F)F ZEFWRWWINDLIIV-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 206010053648 Vascular occlusion Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- YOYLLRBMGQRFTN-SMCOLXIQSA-N norbuprenorphine Chemical compound C([C@@H](NCC1)[C@]23CC[C@]4([C@H](C3)C(C)(O)C(C)(C)C)OC)C3=CC=C(O)C5=C3[C@@]21[C@H]4O5 YOYLLRBMGQRFTN-SMCOLXIQSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- DXIGZHYPWYIZLM-UHFFFAOYSA-J tetrafluorozirconium;dihydrofluoride Chemical compound F.F.F[Zr](F)(F)F DXIGZHYPWYIZLM-UHFFFAOYSA-J 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 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
- 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
Definitions
- the invention relates to the preparation of cleaned metal surfaces, especially of strips of aluminum or aluminum alloys for one subsequent coating with organic coatings, in particular on the manufacture of metal goods for architectural applications and for the food packaging sector is thought.
- no-rinse processes are generally known today.
- the metal surface is cleaned of oil, dirt and other residues. Any residues of chemicals from this first stage are removed by rinsing with water.
- the clean metal surface is wetted with an aqueous bath solution, which is no longer rinsed off but dried in situ on the metal surface and converted there into a solid film of the bath components.
- Such coatings can substantially improve the surface quality, particularly with regard to corrosion protection and adhesion of subsequently applied cover layers.
- chrome-free conversion treatment of aluminum surfaces with fluorides boron, silicon, titanium or zirconium alone or in combination with organic polymers is to achieve permanent corrosion protection and to create a basis for subsequent painting known in principle:
- DE-C-24 33 704 describes treatment baths for increasing paint adhesion and permanent corrosion protection on, inter alia, aluminum, the 0.1 to 5 g / l polyacrylic acid or its salts or esters and 0.1 to 3.5 g / l ammonium fluorozirconate, calculated as ZrO 2 .
- the pH values of these baths can fluctuate over a wide range. The best results are generally obtained when the pH is 6-8.
- WO 92/07973 teaches a chromium- free treatment process for aluminum, the essential components in acidic aqueous solution being 0.01 to about 18% by weight of H 2 ZrF 6 and 0.01 to about 10% by weight of a 3- (NC 1 -4 alkyl-N-2-hydroxyethylaminomethyl) -4-hydroxystyrene polymer used.
- German patent application DE-A-43 17 217 describes a process for the pretreatment of surfaces made of aluminum or its alloys before a second, permanently corrosion-protective conversion treatment, in which the surfaces are brought into contact with acidic aqueous treatment solutions, the complex fluorides of the elements boron, Contain silicon, titanium, zircon or hafnium individually or in a mixture with one another in concentrations of the fluoro anions of between 100 and 4000, preferably 200 to 2000, mg / l and a pH between 0.3 and 3.5, preferably between 1 and 3.
- the treatment solutions can additionally contain polymers of the type of the polyacrylates and / or the reaction products of poly (vinylphenol) with aldehydes and organic hydroxyl-containing amines in concentrations below 500 mg / l, preferably below 200 mg / l.
- Phosphoric acid is another optional component of these baths.
- US-A-4 136 073 claims a chromium-free treatment process for aluminum surfaces, in which the surfaces are brought into contact with acidic (pH 1.2 to 5.5) aqueous solutions containing an organic film former and a soluble titanium compound in the weight ratio polymer: titanium contained between 100: 1 and 1:10.
- the preferred titanium concentration is between 0.01 and 5% by weight.
- the present invention is based on the object of a chrome-free “no-rinse” method of the type described at the beginning or suitable for this
- a chrome-free “no-rinse” method of the type described at the beginning or suitable for this
- To create treatment agents for architectural applications and in particular suitable for use in the food packaging sector are.
- those for food applications typical requirements such as sterilizability from the treated material manufactured packaging and avoiding peeling the coating when opening cans ("feathering").
- a uniform, visually appealing finish layer can be created on the metal surface, which, for example, in the subsequent overcoats with clear coats meets the aesthetic requirements, particularly in the field of food packaging.
- Such treatment solutions best meet the different requirements for the behavior of the coating which contain both Ti (IV) and Zr (IV), a weight ratio Ti: Zr in the range 3: 1 to 1: 3 being particularly preferred.
- the pH of the solutions should preferably be between 1.5 and 2.5.
- the fluoride is preferably used as a complex-bound fluoride, for example as TiF 6 2- or ZrF 6 2- .
- the organic film former is advantageously a synthetic polymer with a sufficient content of free carboxyl groups, its Water solubility or homogeneous dispersibility in water in the process Ensure pH range.
- Polymers are particularly suitable of acrylic acid and / or methacrylic acid, which may also be restricted Amounts of copolymers and the corresponding esters, nitriles and / or may contain amides.
- Preferred organic film formers are clear soluble polyacrylic acids, especially in the pH range of aqueous treatment baths retain their clear solubility. In general it is about are polyacrylic acids of a not too high molecular weight, for example those with molecular weights from 20,000 to about 150,000, preferably from 40,000 to about 100,000.
- aqueous treatment solutions according to the invention can be pre-cleaned
- Metal tapes can be applied in any type of application is suitable, a uniformly defined liquid film in the specified Generate quantity ranges on the metal surface.
- Roller application process with two or three rollers ("Chemcoater"), but also wetting the tape by spraying or dipping with subsequent squeezing of the excess liquid film through, for example, plastic-coated leveling rollers or adjustable ones Air knife is applicable.
- the temperature of the treatment solution can vary between 15 and 50 ° C are. The temperature is preferably chosen between 20 and 35 ° C.
- the applied liquid film is allowed to act on the metal surface for a reaction time of about 1 to 40 seconds, whereupon the film is dried and thermally treated at an elevated temperature.
- a deformable water-insoluble solid film with a mass per unit area of about 50 to 350 mg / m 2 , preferably of about 100 to 250 mg / m 2 remains on the metal surface.
- the drying and / or the thermal treatment of the applied liquid film or the chemicals applied with it can take place in the temperature range from approximately 50 to 125 ° C., the range between 50 and 80 ° C. being preferred.
- Both acidic and alkaline cleaners are suitable.
- the layers obtained with the aqueous treatment solution according to the invention deliver an even finish without discoloration of the base material. she meet in combination with suitable organic applied below Coatings meet the requirements for the food packaging sector.
- the invention further relates to the aqueous suitable for this process Treatment solution concentrates.
- the concentrates so that they are for use in the invention Process with 2 to 50 parts by weight of water per part by weight of concentrate be diluted.
- Table 1 contains bath compositions according to the invention, Table 3 comparative examples in which either the phosphate or the polymer component was omitted. Test results for this are summarized in Table 4.
- Bath compositions Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ti 4+ - 7.1 g / l 3.6 g / l 7.1 g / l 3.6 g / l Zr 4+ 10.8 g / l - 5.4 g / l 5.4 g / l 10.8 g / l PO 4 -3 12.0 g / l 12.0 g / l 12.0 g / l 12.0 g / l 12.0 g / l 12.0 g / l 12.0 g / l F - 13.5 g / l 16.9 g / l 15.2 g / l 23.7 g / l 22.0 g / l OP 0.7 g / l 0.7
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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)
Description
- a) 25 bis 100 g/l Polyacrylsäure oder eines Esters davon,
- b) 25 bis 100 g/l von mindestens einer der Verbindungen H2ZrF6, H2TiF6 und H2SiF6, und
- c) einer Quelle freier Fluoridionen, die 17 bis 120 g/l freies Fluorid liefert.
erfolgte die eigentliche Oberflächenvorbehandlung gemäß Pkt. 5 mit Varianten in nachfolgenden Tabellen.
| Badzusammensetzungen | |||||
| Beisp. 1 | Beisp. 2 | Beisp. 3 | Beisp. 4 | Beisp. 5 | |
| Ti4+ | - | 7,1 g/l | 3,6 g/l | 7,1 g/l | 3,6 g/l |
| Zr4+ | 10,8 g/l | - | 5,4 g/l | 5,4 g/l | 10,8 g/l |
| PO4 -3 | 12,0 g/l | 12,0 g/l | 12,0 g/l | 12,0 g/l | 12,0 g/l |
| F- | 13,5 g/l | 16,9 g/l | 15,2 g/l | 23,7 g/l | 22,0 g/l |
| O.P. | 0,7 g/l | 0,7 g/l | 0,7 g/l | 0,7 g/l | 0,7 g/l |
| F.F. | 6 ml/m2 | 6 ml/m2 | 6 ml/m2 | 6 ml/m2 | 6 ml/m2 |
| Schichtauflagen | |||||
| Beisp. 1 | Beisp. 2 | Beisp. 3 | Beisp. 4 | Beisp. 5 | |
| Ti | - | 43 mg/m2 | 22 mg/m2 | 43 mg/m2 | 22 mg/m2 |
| Zr | 65 mg/m2 | - | 33 mg/m2 | 32 mg/m2 | 65 mg/m2 |
| G.S. | 222 mg/m2 | 220 mg/m2 | 220 mg/m2 | 293 mg/m2 | 295 mg/m2 |
- Legierung:
- Al 99,5
AlMn1Mg0,5 - Lacksystem:
- 1-Schicht-Polyester "PE-25" Fa. Bollig & Kemper
- a) T-Bend-Test
(Biegung der Blechkante um 180° und Tesaband-Abriß) - 1 = sehr gut; kein Abriß
- 5 = mangelhaft; völliger Abriß
| Al 99,5 | AlMn1Mg0,5 | |
| Blech nur entfettet | 5 | 5 |
| Vergleich: Gelbchromatierung | 4 | 4 |
| (AlodineR 1200, Henkel KGaA) | ||
| Beisp. 1 | 5 | 5 |
| Beisp. 2 | 2 | 1 |
| Beisp. 3 | 3 | 3 |
| Beisp. 4 | 1 | 1 |
| Beisp. 5 | 2 | 2 |
(Mit der Kante einer Münze wird im Winkel von 45 ° der Lack kräftig abgekratzt)
- 1 =
- Decklack wird abgekratzt, Primer bleibt unbeschädigt oder 1-Komponentenlack wird nicht beschädigt
- 2 =
- Primerbeschädigung < 5 % oder 1-Komp.-Lackbeschädigung < 5 %
- 3 =
- Primerbeschädigung max. 30 % oder 1-Komp.-Lackbeschädigung max 30 %
- 4 =
- Primerbeschädigung bis 75 % oder 1-Komp.-Lackbeschädigung bis 75 %
- 5 =
- Primerbeschädigung 100 % oder 1-Komp.-Lackbeschädigung 100
| Al99,5 | AlMn1Mg0,5 | |
| Blech nur entfettet | 5 | 5 |
| Vergl: Gelbchromatierung | 3 | 5 |
| (AlodineR 1200, Henkel KGaA) | ||
| NO-RINSE-Vorbehandlung | 1 | 1 |
| (Cr6+-haltig, AlodineR NR 6012S, | ||
| Henkel KGaA) | ||
| Beisp.1 | 5 | 5 |
| Beisp.2 | 1 | 2 |
| Beisp.3 | 3 | 3 |
| Beisp.4 | 1 | 1 |
| Beisp.5 | 2 | 2 |
- Legierung:
- AlMg5
- Lacksystem:
- Dexter/Midland L3E 692 S
- Beurteilung:
- Nach dem Kochen eines lackierten Blechabschnittes in VE-Wasser wird das Aufreißen des Verschlusses einer Getränkedose simuliert.
- 1 = sehr gut:
- sauberer Abriß; kein überstehender oder fehlender Lack
- 5 = mangelhaft:
- ein ca. 1 mm oder größerer überstehender Lackfilm ist feststellbar.
- Abstufung:
- 1 - 5
| AlMg5 | |
| Blech nur entfettet | 4 - 5 |
| Vergleich: No-Rinse-Vorbehandlung | 1 |
| (Cr(III)-haltig: AlodineR NR 6207 R, (Henkel KGaA) | |
| Beisp. 1 | 1 - 2 |
| Beisp. 2 | 1 |
| Beisp. 3 | 1 - 2 |
| Beisp. 4 | 1 |
| Beisp. 5 | 1 |
Claims (9)
- Verfahren zur Erzeugung von chromfreien Konversionsschichten auf Oberflächen von Aluminium und seinen Legierungen im No-Rinse-Verfahren durch Behandeln mit wäßrigen Lösungen mit einem pH-Wert zwischen 1 und 3,5, die Titan und/oder Zirkon sowie organische Filmbildner enthalten, dadurch gekennzeichnet, daß man die Oberflächen mit Lösungen in Kontakt bringt, die im wesentlichen aus:bestehen, und die Lösungen nach einer Einwirkungszeit zwischen einer und 40 Sekunden ohne Spülung bei Temperaturen zwischen 50 und 125 °C auf der Oberfläche eintrocknet.a) 2,2 bis 22,0 g/l Zr(IV) und/oder 1,4 bis 14,0 g/l Ti(IV),b) 2,4 bis 24,0 g/l Orthophosphat,c) 3,0 bis 30,0 g/l Fluorid,d) 0,15 bis 1,5 g/l eines wasserlöslichen oder in Wasser homogen dispergierbaren organischen Filmbildners unde) Wasser
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Behandlungslösungenenthalten.a) 4,3 bis 13,0 g/l Zr(IV) und/oder 2,8 bis 8,5 g/l Ti(IV),b) 4,8 bis 14,3 g/l Orthophosphat,c) 6,0 bis 18,2 g/l Fluorid,d) 0,28 bis 0,82 g/l eines wasserlöslichen oder in Wasser homogen dispergierbaren organischen Filmbildners
- Verfahren nach einem oder beiden der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Behandlungslösung sowohl Titan als auch Zirkon enthält, wobei das Gewichtsverhältnis Ti:Zr vorzugsweise im Bereich 3:1 bis 1:3 liegt.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der organische Filmbildner ein carboxylgruppenhaltiges Polymer, insbesondere ein Homo- und/oder Copolymerisat von Acryl- und/oder Methacrylsäure ist und eine mittlere Molmasse zwischen 20 000 und 150 000, vorzugsweise zwischen 40 000 und 100 000 aufweist.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Behandlungslösung eine Temperatur zwischen 15 und 50 °C, vorzugsweise zwischen 20 und 35 °C aufweist.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Behandlungslösung einen pH-Wert zwischen 1,5 und 2,5 aufweist.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Behandlungslösung zu einem Flüssigfilm mit einer Auflage zwischen 3 und 10 ml/m2, insbesondere zwischen 4 und 8 ml/m2 auf die Metalloberfläche aufgetragen wird.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß man den Flüssigfilm bei einer Temperatur zwischen 50 und 80 °C eintrocknet.
- Wäßriges Konzentrat, das durch Verdünnen mit 2 bis 50 Gewichtsteilen Wasser pro Gewichtsteil Konzentrat eine anwendungsfertige Behandlungslösung ergibt, welche im wesentlichen aus:besteht und zur Verwendung im Verfahren gemäß einem oder mehreren der Ansprüche 1 bis 8 dient.a) 2,2 bis 22,0 g/l Zr(IV) und/oder 1,4 bis 14,0 g/l Ti(IV),b) 2,4 bis 24,0 g/l Orthophosphat,c) 3,0 bis 30,0 g/l Fluorid,d) 0,15 bis 1,5 g/l eines wasserlöslichen oder in Wasser homogen dispergierbaren organischen Filmbildners unde) Wasser
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4412138A DE4412138A1 (de) | 1994-04-08 | 1994-04-08 | Chromfreies Verfahren zur No-Rinse Behandlung von Aluminium und seinen Legierungen sowie hierfür geeignete wäßrige Badlösungen |
| DE4412138 | 1994-04-08 | ||
| PCT/EP1995/001197 WO1995027807A1 (de) | 1994-04-08 | 1995-03-31 | Chromfreies verfahren zur no-rinse behandlung von aluminium und seinen legierungen sowie hierfür geeignete wässrige badlösungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0754251A1 EP0754251A1 (de) | 1997-01-22 |
| EP0754251B1 true EP0754251B1 (de) | 1998-05-20 |
Family
ID=6514924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95915174A Expired - Lifetime EP0754251B1 (de) | 1994-04-08 | 1995-03-31 | Chromfreies verfahren zur no-rinse behandlung von aluminium und seinen legierungen sowie hierfür geeignete wässrige badlösungen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5868872A (de) |
| EP (1) | EP0754251B1 (de) |
| JP (1) | JP3662586B2 (de) |
| CA (1) | CA2187463A1 (de) |
| DE (2) | DE4412138A1 (de) |
| ES (1) | ES2117863T3 (de) |
| WO (1) | WO1995027807A1 (de) |
Cited By (1)
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|---|---|---|---|---|
| DE102008019761B3 (de) * | 2008-04-18 | 2009-06-04 | Henkel Ag & Co. Kgaa | Wärmetauscher mit expandierbaren Kunststoff-Endrohren |
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| CA2305261A1 (en) * | 1997-10-14 | 1999-04-22 | Henkel Corporation | Composition and process for multi-purpose treatment of metal surfaces |
| US6802913B1 (en) | 1997-10-14 | 2004-10-12 | Henkel Kommanditgesellschaft Aut Aktien | Composition and process for multi-purpose treatment of metal surfaces |
| EP0919877B1 (de) * | 1997-12-01 | 2004-02-18 | Canon Kabushiki Kaisha | Verfahren zur Herstellung eines elektrophotographischen lichtempfindlichen Elements |
| DE19807688C2 (de) * | 1998-02-25 | 2003-06-26 | Daimler Chrysler Ag | Verwendung einer chromfreien Konversionslösung auf Zirkonbasis als Schutzfilm auf einzugießenden Leichtmetall-Rohlingen einer Zylinderlaufbüchse |
| US6432603B1 (en) * | 1998-11-27 | 2002-08-13 | Canon Kabushiki Kaisha | Process for producing electrophotographic photosensitive member |
| JP2000162806A (ja) | 1998-11-30 | 2000-06-16 | Canon Inc | 電子写真感光体、該感光体の製造方法、プロセスカートリッジ及び電子写真装置 |
| US6248490B1 (en) | 1998-12-01 | 2001-06-19 | Canon Kabushiki Kaisha | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus |
| DE19921842A1 (de) * | 1999-05-11 | 2000-11-16 | Metallgesellschaft Ag | Vorbehandlung von Aluminiumoberflächen durch chromfreie Lösungen |
| DE19923084A1 (de) * | 1999-05-20 | 2000-11-23 | Henkel Kgaa | Chromfreies Korrosionsschutzmittel und Korrosionsschutzverfahren |
| JP4099307B2 (ja) * | 2000-04-20 | 2008-06-11 | 日本ペイント株式会社 | アルミニウム用ノンクロム防錆処理剤、防錆処理方法および防錆処理されたアルミニウム製品 |
| JP2001342578A (ja) * | 2000-05-31 | 2001-12-14 | Honda Motor Co Ltd | 金属表面処理剤 |
| JP5183837B2 (ja) * | 2001-05-07 | 2013-04-17 | 日本ペイント株式会社 | 化成処理剤及び処理方法 |
| WO2004046421A1 (en) * | 2002-11-15 | 2004-06-03 | Henkel Kommanditgesellschaft Auf Aktien | Passivation composition and process for zinciferous and aluminiferous surfaces |
| DE10258291A1 (de) * | 2002-12-13 | 2004-07-08 | Henkel Kgaa | Verfahren zur Beschichtung von Metallsubstraten mit einem radikalisch polymerisierbaren Überzugsmittel und beschichtete Substrate |
| US6887308B2 (en) * | 2003-01-21 | 2005-05-03 | Johnsondiversey, Inc. | Metal coating coupling composition |
| GB0314901D0 (en) * | 2003-06-26 | 2003-07-30 | Natech Ltd | Coating material |
| US20050226975A1 (en) * | 2004-04-13 | 2005-10-13 | Greg Drouillard | Foodstuff marking system |
| US20060042726A1 (en) * | 2004-09-02 | 2006-03-02 | General Electric Company | Non-chrome passivation of steel |
| JP4784236B2 (ja) * | 2004-09-30 | 2011-10-05 | 住友電気工業株式会社 | 非水電解質電池用リード線及び非水電解質電池 |
| DE102005005858A1 (de) * | 2005-02-08 | 2006-08-17 | Henkel Kgaa | Verfahren zur Beschichtung von Metallblech, insbesondere Zinkblech |
| US7858162B2 (en) * | 2006-04-06 | 2010-12-28 | Ppg Industries Ohio, Inc. | Food cans coated with a composition comprising an acrylic polymer |
| DE102006039633A1 (de) * | 2006-08-24 | 2008-03-13 | Henkel Kgaa | Chromfreies, thermisch härtbares Korrosionsschutzmittel |
| US9428410B2 (en) | 2007-09-28 | 2016-08-30 | Ppg Industries Ohio, Inc. | Methods for treating a ferrous metal substrate |
| US8097093B2 (en) | 2007-09-28 | 2012-01-17 | Ppg Industries Ohio, Inc | Methods for treating a ferrous metal substrate |
| US20090188269A1 (en) * | 2008-01-25 | 2009-07-30 | Henkel Corporation | High pressure connection systems and methods for their manufacture |
| DE102008009371A1 (de) * | 2008-02-14 | 2009-08-20 | Henkel Ag & Co. Kgaa | Verfahren zur Herstellung eines Wärmetauschers |
| DE102008023276A1 (de) * | 2008-05-13 | 2009-11-19 | Henkel Ag & Co. Kgaa | Verbinden von Rohren mit thermisch härtbaren Klebstoffen |
| DE102008034105A1 (de) | 2008-07-21 | 2010-01-28 | Henkel Ag & Co. Kgaa | Verbinden von Rohren mittels einer Hülse und einem thermisch expandierbaren Klebstoff |
| US9347134B2 (en) | 2010-06-04 | 2016-05-24 | Prc-Desoto International, Inc. | Corrosion resistant metallate compositions |
| EP2532769A1 (de) | 2011-06-10 | 2012-12-12 | Amcor Flexibles Kreuzlingen Ltd. | Verfahren zur Herstellung von Chrom-frei Konversionsschicht auf einer Oberfläche von Aluminium- oder Aluminiumlegierungsband |
| US9273399B2 (en) | 2013-03-15 | 2016-03-01 | Ppg Industries Ohio, Inc. | Pretreatment compositions and methods for coating a battery electrode |
| JP6295832B2 (ja) * | 2014-05-28 | 2018-03-20 | 株式会社ブリヂストン | アルミ−ゴム複合体及びその製造方法 |
| US10886249B2 (en) | 2018-01-31 | 2021-01-05 | Ams International Ag | Hybrid wafer-to-wafer bonding and methods of surface preparation for wafers comprising an aluminum metalization |
| WO2020148412A1 (en) | 2019-01-18 | 2020-07-23 | Constellium Neuf-Brisach | Continuous surface treatment for coils made of aluminum alloys sheets |
| FR3091880B1 (fr) * | 2019-01-18 | 2022-08-12 | Constellium Neuf Brisach | Traitement de surface en continu des bobines réalisées à partir de tôles d’alliages d’aluminium |
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| US3912548A (en) * | 1973-07-13 | 1975-10-14 | Amchem Prod | Method for treating metal surfaces with compositions comprising zirconium and a polymer |
| JPS5315687B2 (de) * | 1973-10-04 | 1978-05-26 | ||
| JPS5145604B2 (de) * | 1973-12-21 | 1976-12-04 | ||
| JPS5173938A (en) * | 1974-12-25 | 1976-06-26 | Nippon Packaging Kk | Aruminiumuoyobi sonogokinnohyomenshoriho |
| US4063969A (en) * | 1976-02-09 | 1977-12-20 | Oxy Metal Industries Corporation | Treating aluminum with tannin and lithium |
| FR2417537A1 (fr) * | 1978-02-21 | 1979-09-14 | Parker Ste Continentale | Composition a base d'hafnium pour inhiber la corrosion des metaux |
| US4191596A (en) * | 1978-09-06 | 1980-03-04 | Union Carbide Corporation | Method and compositions for coating aluminum |
| DE3247729A1 (de) * | 1982-12-23 | 1984-07-05 | Gerhard Collardin GmbH, 5000 Köln | Verfahren zur behandlung von metalloberflaechen, insbesondere solchen von aluminium, aluminiumlegierungen und stahl, sowie hierfuer geeignete waessrige badloesungen |
| US4470853A (en) * | 1983-10-03 | 1984-09-11 | Coral Chemical Company | Coating compositions and method for the treatment of metal surfaces |
| US4978399A (en) * | 1988-01-04 | 1990-12-18 | Kao Corporation | Metal surface treatment with an aqueous solution |
| US5129967A (en) * | 1988-05-03 | 1992-07-14 | Betz Laboratories, Inc. | Composition and method for non-chromate coating of aluminum |
| US4921552A (en) * | 1988-05-03 | 1990-05-01 | Betz Laboratories, Inc. | Composition and method for non-chromate coating of aluminum |
| US4992116A (en) * | 1989-04-21 | 1991-02-12 | Henkel Corporation | Method and composition for coating aluminum |
| US5089064A (en) * | 1990-11-02 | 1992-02-18 | Henkel Corporation | Process for corrosion resisting treatments for aluminum surfaces |
| US5158622A (en) * | 1991-02-12 | 1992-10-27 | Betz Laboratories, Inc. | Method and composition for treatment of aluminum |
| DE4317217A1 (de) * | 1993-05-24 | 1994-12-01 | Henkel Kgaa | Chromfreie Konversionsbehandlung von Aluminium |
| US5427632A (en) * | 1993-07-30 | 1995-06-27 | Henkel Corporation | Composition and process for treating metals |
| US5441580A (en) * | 1993-10-15 | 1995-08-15 | Circle-Prosco, Inc. | Hydrophilic coatings for aluminum |
-
1994
- 1994-04-08 DE DE4412138A patent/DE4412138A1/de not_active Withdrawn
-
1995
- 1995-03-31 WO PCT/EP1995/001197 patent/WO1995027807A1/de not_active Ceased
- 1995-03-31 EP EP95915174A patent/EP0754251B1/de not_active Expired - Lifetime
- 1995-03-31 US US08/722,261 patent/US5868872A/en not_active Expired - Fee Related
- 1995-03-31 DE DE59502263T patent/DE59502263D1/de not_active Expired - Fee Related
- 1995-03-31 CA CA002187463A patent/CA2187463A1/en not_active Abandoned
- 1995-03-31 JP JP52604995A patent/JP3662586B2/ja not_active Expired - Fee Related
- 1995-03-31 ES ES95915174T patent/ES2117863T3/es not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008019761B3 (de) * | 2008-04-18 | 2009-06-04 | Henkel Ag & Co. Kgaa | Wärmetauscher mit expandierbaren Kunststoff-Endrohren |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4412138A1 (de) | 1995-10-12 |
| JPH09511548A (ja) | 1997-11-18 |
| WO1995027807A1 (de) | 1995-10-19 |
| ES2117863T3 (es) | 1998-08-16 |
| DE59502263D1 (de) | 1998-06-25 |
| US5868872A (en) | 1999-02-09 |
| EP0754251A1 (de) | 1997-01-22 |
| JP3662586B2 (ja) | 2005-06-22 |
| CA2187463A1 (en) | 1995-10-19 |
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