EP2255028B1 - Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés - Google Patents
Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés Download PDFInfo
- Publication number
- EP2255028B1 EP2255028B1 EP09722245.9A EP09722245A EP2255028B1 EP 2255028 B1 EP2255028 B1 EP 2255028B1 EP 09722245 A EP09722245 A EP 09722245A EP 2255028 B1 EP2255028 B1 EP 2255028B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- zinc
- phosphates
- aqueous dispersion
- insoluble
- 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.)
- Active
Links
- 238000004070 electrodeposition Methods 0.000 title description 18
- 229910019142 PO4 Inorganic materials 0.000 claims description 70
- 235000021317 phosphate Nutrition 0.000 claims description 67
- 238000000034 method Methods 0.000 claims description 46
- 239000006185 dispersion Substances 0.000 claims description 45
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 36
- 239000011701 zinc Substances 0.000 claims description 36
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 33
- 229910052725 zinc Inorganic materials 0.000 claims description 33
- 230000002378 acidificating effect Effects 0.000 claims description 31
- 239000002245 particle Substances 0.000 claims description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 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 claims description 14
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 238000011282 treatment Methods 0.000 claims description 8
- 230000003213 activating effect Effects 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 238000003618 dip coating Methods 0.000 claims description 3
- 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 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 239000012670 alkaline solution Substances 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 37
- 239000010452 phosphate Substances 0.000 description 35
- 238000013507 mapping Methods 0.000 description 23
- 239000010410 layer Substances 0.000 description 20
- 230000004913 activation Effects 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 238000005507 spraying Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 description 5
- -1 Methyl- Chemical group 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 5
- 239000008397 galvanized steel Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 description 2
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 2
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- OMYZIZHKGDYSFD-UHFFFAOYSA-N 3-(furan-2-yl)-2-nitropentanedioic acid Chemical compound OC(=O)CC(C(C(O)=O)[N+]([O-])=O)C1=CC=CO1 OMYZIZHKGDYSFD-UHFFFAOYSA-N 0.000 description 1
- MRAUNPAHJZDYCK-UHFFFAOYSA-N 5-[[amino(nitramido)methylidene]amino]-2-azaniumylpentanoate Chemical compound OC(=O)C(N)CCCN=C(N)N[N+]([O-])=O MRAUNPAHJZDYCK-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- MRAUNPAHJZDYCK-BYPYZUCNSA-N L-nitroarginine Chemical compound OC(=O)[C@@H](N)CCCNC(=N)N[N+]([O-])=O MRAUNPAHJZDYCK-BYPYZUCNSA-N 0.000 description 1
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 1
- 150000001204 N-oxides Chemical class 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- ORBJJBJTUGAAOB-UHFFFAOYSA-N [acetyloxy-(furan-2-yl)-nitromethyl] acetate Chemical compound CC(=O)OC(OC(C)=O)([N+]([O-])=O)C1=CC=CO1 ORBJJBJTUGAAOB-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008366 buffered solution Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M chlorate Inorganic materials [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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- 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
- C23C22/78—Pretreatment of the material to be coated
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/12—Electrophoretic coating characterised by the process characterised by the article coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/20—Pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/51—One specific pretreatment, e.g. phosphatation, chromatation, in combination with one specific coating
Definitions
- the materials and forms used for this purpose are usually the "bare" metals whose surfaces have no coating, which provide adequate protection against corrosion of the material or are suitable for the application of a paint system. Such "bare” surfaces are in addition to the actual metal surfaces and those that are only provided for transport or storage with corrosion protection oils.
- the manufacturers of steel strips in particular also supply pre-phosphated materials that can be provided with an immersion paint directly by the respective OEMs before further lacquer layers are applied.
- the object of the present invention is now to prevent the occurrence of inhomogeneities in the electrodeposition coating ("mapping") in the anticorrosive treatment of components assembled from metallic components, which at least partially also consist of pre-phosphated zinc surfaces, and which have been given a heat treatment.
- the water-soluble phosphate is the total amount of phosphates dissolved in the acidic aqueous dispersion, based on PO 4 .
- the content of water-soluble phosphates is preferably adjusted via those phosphate salts which completely dissolve in an acidic aqueous dispersion of the process according to the invention and thereby dissociate into their ionogenic constituents.
- the proportion of particulate oxides necessary for additional stabilization of the acidic aqueous dispersion before agglomeration is preferably at least 1 ppm, more preferably at least 10 ppm, with contents above 500 ppm in the acidic dispersions with the preferred content of insoluble phosphates providing no further benefit , It is advantageous for optimum stabilization of the insoluble phosphates if the particulate oxides have a particle diameter of not more than 0.5 ⁇ m, in particular not more than 0.1 ⁇ m. In this case, the average particle size of the insoluble phosphates is preferably at least greater than that of the particulate oxides.
- step (D) For the electrodeposition coating in step (D), the dipping lacquers known in detail to the person skilled in the art are applicable.
- metallic components treated according to the present invention are used in construction and architectural applications, as well as for the manufacture of automotive bodywork and the manufacture of "white goods" and electronic enclosures.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
- Paints Or Removers (AREA)
Claims (15)
- Procédé pour le traitement d'éléments de construction métalliques procurant une protection contre la corrosion, dans lequel l'élément de construction métallique, qui est constitué au moins en partie par des surfaces de zinc, les surfaces de l'élément de construction qui sont constituées de zinc présentant en partie une couche de phosphate de zinc cristallin, a été soumis à un traitement thermique à une température d'au moins 100 °C, caractérisé en ce qu'on fait ensuite passer l'éléments de construction qui a fait l'objet d'un traitement thermique successivement par les étapes opératoires suivantes :(A) le cas échéant, un nettoyage et un dégraissage de l'élément de construction ;(B) un prétraitement d'activation de l'élément de construction avec une dispersion aqueuse acide contenant des phosphates insolubles, la valeur de pH de la dispersion n'étant pas inférieure à 4 et pas supérieure à 5,5 ;(C) un traitement de conversion de l'élément de construction activé par phosphatation, si bien qu'au moins sur l'ensemble des surfaces de fer et de zinc de l'élément de construction, est présente chaque fois une couche de phosphate de zinc cristallin, le poids de la couche n'étant pas inférieur à 0,5 g/m2 ; et(D) une peinture électrophorétique de l'élément de construction par immersion.
- Procédé selon la revendication 1, caractérisé en ce que l'élément de construction métallique est constitué par des éléments de construction assemblés qui possèdent en partie des surfaces de zinc qui présentent des revêtements sous la forme de couches, constitués de phosphate de zinc cristallin, ces éléments de construction ayant été soumis à un traitement thermique à une température d'au moins 100 °C, de préférence d'au moins 150 °C.
- Procédé selon une des revendications précédentes ou les deux, caractérisé en ce que le nettoyage de l'élément de construction à l'étape (A) a lieu avec une solution alcaline dont la valeur de pH n'est pas inférieure à 8, de préférence n'est pas inférieure à 9.
- Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que la valeur de pH de la dispersion aqueuse acide à l'étape (B) n'est pas supérieure à 5.
- Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que les phosphates insolubles à l'étape (B) sont choisis parmi des phosphates de métaux, à savoir le zinc, le fer, le manganèse, le nickel, le cobalt, le calcium, le magnésium et/ou l'aluminium, de préférence le zinc et/ou le fer, et de manière particulièrement préférée le zinc.
- Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que le diamètre moyen de particule des phosphates insolubles dans la dispersion aqueuse acide à l'étape (B) n'est pas supérieur à 5 µm, de préférence n'est pas supérieur à 2 µm.
- Procédé selon la revendication 6, caractérisé en ce que la teneur de la dispersion aqueuse acide en phosphates insolubles à l'étape (B) dont le diamètre de particule n'est pas supérieur à 5 µm s'élève à au moins 0,1 g/l rapporté au PO4.
- Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que la dispersion aqueuse acide à l'étape (B) contient en outre des phosphates solubles dans l'eau.
- Procédé selon la revendication 8, caractérisé en ce que la teneur en phosphates solubles dans l'eau, rapporté à la quantité totale du PO4 solubilisé, n'est pas inférieure à 1 g/l, de préférence pas inférieure à 2 g/l et de manière particulièrement préférée pas inférieure à 4 g/l.
- Procédé selon l'une quelconque des revendications 8 et 9 ou les deux, caractérisé en ce que sont contenus, à titre de phosphates solubles dans l'eau, les sels alcalins et d'ammonium de l'acide phosphorique et/ou l'acide phosphorique.
- Procédé selon une ou plusieurs des revendications précédentes, caractérisé en ce que la dispersion aqueuse d'acide à l'étape (B) contient en outre des oxydes particulaires insolubles.
- Procédé selon la revendication 11, caractérisé en ce que les oxydes particulaires insolubles sont choisis parmi un ou plusieurs oxydes du silicium, du fer, du zirconium et/ou du titane.
- Procédé selon l'une quelconque des revendications 11 et 12 ou les deux, caractérisé en ce que la teneur en oxyde particulaire insoluble s'élève à au moins 1 ppm, de préférence à au moins 10 ppm, et ne dépasse pas une teneur de 500 ppm.
- Utilisation d'un élément de construction métallique qui a fait l'objet d'un traitement selon une ou plusieurs des revendications 1 à 13, dans un procédé pour l'application d'un système multicouche dans le traitement d'amélioration des propriétés superficielles à l'échelle industrielle.
- Utilisation d'un élément de construction métallique qui a fait l'objet d'un traitement selon une ou plusieurs des revendications 1 à 13, pour la fabrication d'appareils électroménager, de boîtiers électroniques et pour la fabrication de carrosseries dans la construction automobile, ainsi que son utilisation dans l'industrie du bâtiment et dans le domaine de l'architecture.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008015390 | 2008-03-20 | ||
| DE102008017523A DE102008017523A1 (de) | 2008-03-20 | 2008-04-04 | Optimierte Elektrotauchlackierung von zusammengefügten und teilweise vorphosphatierten Bauteilen |
| PCT/EP2009/053065 WO2009115485A1 (fr) | 2008-03-20 | 2009-03-16 | Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2255028A1 EP2255028A1 (fr) | 2010-12-01 |
| EP2255028B1 true EP2255028B1 (fr) | 2014-09-03 |
Family
ID=40984105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09722245.9A Active EP2255028B1 (fr) | 2008-03-20 | 2009-03-16 | Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8329013B2 (fr) |
| EP (1) | EP2255028B1 (fr) |
| DE (1) | DE102008017523A1 (fr) |
| ES (1) | ES2524791T3 (fr) |
| WO (1) | WO2009115485A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2787100A1 (fr) * | 2013-04-02 | 2014-10-08 | Matthias Koch | Procédé de fabrication d'un substrat métallique revêtu et le substrat métallique revêtu obtenu selon ce procédé |
| EP3131996A1 (fr) * | 2014-04-14 | 2017-02-22 | Dow Global Technologies LLC | Compositions de résine époxy pour fours de prégélification |
| US10597554B2 (en) | 2014-04-17 | 2020-03-24 | Ppg Industries Ohio, Inc. | Primer coating composition |
| HUE047403T2 (hu) * | 2017-04-21 | 2020-04-28 | Henkel Ag & Co Kgaa | Lerakódásmentes foszfátbevonat-képzési módszer fémalkatrész sorozatokhoz |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4165242A (en) * | 1977-11-21 | 1979-08-21 | R. O. Hull & Company, Inc. | Treatment of metal parts to provide rust-inhibiting coatings by phosphating and electrophoretically depositing a siccative organic coating |
| ES2060449T3 (es) * | 1991-07-22 | 1994-11-16 | Akzo Nobel Nv | Composicion de revestimiento en polvo que contiene una resina, un agente de curado y zinc. |
| DE69421304T2 (de) * | 1993-02-17 | 2000-03-02 | Kawasaki Steel Co | Mit einem organischen Schichtstoff beschichteter Stahlstreifen mit verbesserten Elektrobeschichtungseigenschaften und Korrosionsbeständigkeit sowie Verfahren zur Herstellung |
| CA2213824A1 (fr) * | 1995-02-28 | 1996-09-06 | Henkel Corporation | Suppression ou attenuation des irregularites de surface lors de la peinture par electrophorese de surfaces metalliques phosphatees |
| DE19540085A1 (de) * | 1995-10-27 | 1997-04-30 | Henkel Kgaa | Nitratarme, manganfreie Zinkphosphatierung |
| JP3451334B2 (ja) | 1997-03-07 | 2003-09-29 | 日本パーカライジング株式会社 | 金属のりん酸塩皮膜化成処理前の表面調整用前処理液及び表面調整方法 |
| US6214132B1 (en) * | 1997-03-07 | 2001-04-10 | Henkel Corporation | Conditioning metal surfaces prior to phosphate conversion coating |
| JP3545974B2 (ja) * | 1999-08-16 | 2004-07-21 | 日本パーカライジング株式会社 | 金属材料のりん酸塩化成処理方法 |
| ATE353987T1 (de) * | 2002-06-13 | 2007-03-15 | Nippon Paint Co Ltd | Zinkphosphatkonditioniermittel für phosphatkonversionsbeschichtung von stahlplatte und entsprechendes produkt |
| US7722710B2 (en) * | 2005-08-19 | 2010-05-25 | Toshio Inbe | Surface-conditioning composition, method for production thereof, and surface conditioning method |
| KR101068708B1 (ko) * | 2006-02-20 | 2011-09-28 | 수미도모 메탈 인더스트리즈, 리미티드 | 인산 아연 피막을 가지는 용융 아연 도금 강판의 제조 방법 |
-
2008
- 2008-04-04 DE DE102008017523A patent/DE102008017523A1/de not_active Ceased
-
2009
- 2009-03-16 EP EP09722245.9A patent/EP2255028B1/fr active Active
- 2009-03-16 WO PCT/EP2009/053065 patent/WO2009115485A1/fr active Application Filing
- 2009-03-16 ES ES09722245.9T patent/ES2524791T3/es active Active
-
2010
- 2010-09-20 US US12/885,915 patent/US8329013B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US20110062027A1 (en) | 2011-03-17 |
| US8329013B2 (en) | 2012-12-11 |
| DE102008017523A1 (de) | 2009-09-24 |
| WO2009115485A1 (fr) | 2009-09-24 |
| ES2524791T3 (es) | 2014-12-12 |
| EP2255028A1 (fr) | 2010-12-01 |
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