EP2255028A1 - Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés - Google Patents

Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés

Info

Publication number
EP2255028A1
EP2255028A1 EP09722245A EP09722245A EP2255028A1 EP 2255028 A1 EP2255028 A1 EP 2255028A1 EP 09722245 A EP09722245 A EP 09722245A EP 09722245 A EP09722245 A EP 09722245A EP 2255028 A1 EP2255028 A1 EP 2255028A1
Authority
EP
European Patent Office
Prior art keywords
component
zinc
phosphates
aqueous dispersion
acidic aqueous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09722245A
Other languages
German (de)
English (en)
Other versions
EP2255028B1 (fr
Inventor
Frank-Oliver Pilarek
Marc Balzer
Jan-Willem Brouwer
Matthias Hamacher
Jens KRÖMER
Roland Popp
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP2255028A1 publication Critical patent/EP2255028A1/fr
Application granted granted Critical
Publication of EP2255028B1 publication Critical patent/EP2255028B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C23C22/78—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 present invention relates to a method for corrosion-protective phosphating and electrodeposition of components composed of at least partially metallic components, which partially consist of pre-phosphated zinc surfaces, wherein the metallic components of the component, which consist at least partially of pre-phosphated zinc surfaces, or the individual components were subjected to a heat treatment ,
  • the disadvantageous formation of inhomogeneities in the electrocoating "mapping" of the phosphated component is overcome by means of an activating pretreatment with an acidic aqueous dispersion containing insoluble phosphates.
  • the materials and forms used for this purpose are mostly 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 coating system Such "bare” surfaces are not only the actual metal surfaces but also such which 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.
  • a heat treatment of the components pre-assembled to the component is currently essential ("pre-gelation").
  • "Preglelling" of the applied adhesives exposes the pre-phosphated surfaces of the component to elevated temperatures and physical properties of the phosphate layer, in particular a zinc phosphate layer, sustainably change.
  • the changed properties of the heat-treated, pre-phosphated constituents have an effect in subsequent corrosion-protection treatments and in particular in electrocoating. It is observed, for example, that the electrocoating on the pre-phosphated surfaces provides different coating layer weights than on the surfaces, which are first treated phosphating at the OEM.
  • mapping thus represents a current problem, especially in automotive manufacturing, and has not been adequately addressed and addressed in the prior art.
  • EP 0977908 discloses an activating pretreatment solution of metallic surfaces prior to zinc phosphating
  • the dispersion can be used according to the teaching of EP 0977908 in a wide pH range of 4 to 13, wherein the particularly preferred pH range for the most effective activation of the metal surfaces is between 7.5 and 8.5.
  • a teaching to avoid "mapping" on heat-treated, pre-phosphated areas of metallic components in a subsequent electrodeposition coating can not be deduced by those skilled in the art.
  • 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.
  • this object is achieved by a method in which the metallic component, which has been heat treated at a temperature of at least 100 0 C and which consists at least partially of surfaces of zinc, wherein the surfaces of the component made of zinc consist partly of a crystalline zinc phosphate layer, is treated in successive individual steps anticorrosive, comprising: (A) if necessary cleaning and degreasing of the component;
  • such a metallic component is treated which consists partly of surfaces of zinc with a crystalline zinc phosphate layer and which has been heat-treated at a temperature of at least 100 ° C., more preferably at least 150 ° C.
  • a metallic component in the method according to the invention is understood in particular to be a composite component, the component being composed in part of components which have surfaces of zinc which have no bare zinc surfaces but crystalline zinc phosphate layer coatings, at least these components being at a temperature of at least 100 0 C, more preferably at least 150 0 C were heat treated.
  • the heat treatment at a temperature of at least 100 ° C. of the individual components of the component, which also represent surfaces of zinc which already have a crystalline phosphate layer, is carried out according to the invention preferably at the earliest immediately before the joining of the metallic component from the individual components.
  • the heat treatment of the components immediately before the assembly of the components to the component serves for improved bonding after the application of the adhesive on the corresponding areas of the metallic components to be joined.
  • Such a heat-induced "pre-gelation" of the adhesive is always necessary, so that the joining of the components provided with the adhesive to the finished component after the heat treatment in practice as soon as possible.
  • the heat treatment of the components of the component was preferably carried out for at least 5 minutes, more preferably at least 15 minutes at a temperature of at least 100 0 C. If the temperature is below 100 ° C. or if the duration of the heat treatment is significantly shorter, the occurrence of "mapping" as a result of uneven electrocoating of the assembled component is not to be expected. Conversely, the undesirable "mapping" is not the process sequence according to the invention for anticorrosion phosphating with final electrocoating lacquering of components whose individual components have been previously heat-treated at temperatures of at least 150 0 C, particularly intense.
  • the metallic component may consist of components of zinc, iron and aluminum and their alloys, preferably of steel and alloy-galvanized steel, whereby always those components are used according to the invention, the surface of zinc at least partially having a crystalline phosphate layer.
  • Such pre-phosphated components of zinc or zinc surfaces according to the invention preferably have a layer support of the crystalline phosphate layer of not less than 0.5 g / m 2 , particularly preferably not less than 1 g / m 2 .
  • the cleaning and degreasing of the component in step (A) is preferably carried out in a surfactant-containing, alkaline aqueous solution by spraying or dipping.
  • the dipping method is preferred because it exerts the lower mechanical stress on the pre-phosphated areas of the component.
  • Acid cleaning solutions corrode the pre-phosphated zinc surfaces of the Component and thus produce coating defects, which must be cured in addition in the following process steps according to the invention for optimum corrosion protection.
  • acidic cleaning increases the inhomogeneity of the phosphated surfaces of the component.
  • the purification is carried out at elevated temperature, preferably at temperatures above 40 ° C. and at a pH of not less than 8, more preferably not less than 9.
  • the activating pretreatment in process step (B) takes place at a pH of not less than 4, but the pH is preferably not greater than 6, more preferably not greater than 5.5, and particularly preferably not greater than 5.
  • the pH is preferably not greater than 6, more preferably not greater than 5.5, and particularly preferably not greater than 5.
  • step (B) are dispersions of insoluble phosphates of the metals zinc, iron, manganese, nickel, cobalt, calcium, magnesium and / or aluminum, preferably zinc and / or iron and more preferably zinc.
  • Insoluble phosphate in the context of the present invention is that part of a phosphate salt required for the aqueous dispersion formulation which does not dissolve in the aqueous phase at the pH of the acidic dispersion of the invention.
  • the dissolved ionic constituents of the phosphate salt with its particulate insoluble constituent - that is, the insoluble phosphate - are in chemical equilibrium.
  • the acidic aqueous dispersions are always saturated solutions of the phosphate salts used selected from phosphates of zinc, iron, manganese, nickel, cobalt, calcium and / or aluminum.
  • insoluble phosphate according to the invention has a diameter of at least 0.05 ⁇ m.
  • the acidic aqueous dispersion in step (B) contains the insoluble phosphate in an average particle diameter of not more than 5 ⁇ m, more preferably not more than 2 ⁇ m.
  • the average particle diameter in the acidic aqueous dispersion is determined by light scattering methods, so that agglomerates of individual particles are detected in addition to the individual particles.
  • the particle diameter thus according to the invention refers both to discrete phosphate particles and to their agglomerates.
  • step (B) shows in particular that an activation of the metallic surfaces of the component in step (B) for a subsequent phosphating in step (C) then effectively, ie forming homogeneous, closed and fine crystalline zinc phosphate layers, if the content of insoluble phosphates in the acidic aqueous dispersion in step (B) having a particle diameter of not more than 5 microns at least 0.1 g / l based on PO 4 . Larger particles or agglomerates containing insoluble phosphate hardly cause a sufficient activation of the metallic surfaces for the subsequent zinc phosphating.
  • the content of water-soluble phosphates based on the total amount of dissolved PO 4 is not less than 1 g / l, preferably not less than 2 g / l, particularly preferably not less than 4 g / l.
  • the "mapping" in the subsequent electrodeposition coating of the phosphated component is completely suppressed, but below a soluble phosphate content of 1 g / l, no significant effect on "mapping" due to the presence of the soluble phosphates is observed.
  • 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 alkali metal and ammonium salts of phosphoric acid and / or phosphoric acid have proven themselves.
  • the setting of a content of soluble phosphates can be carried out starting from an aqueous dispersion of insoluble phosphate also via the addition of acids having a pK s value of less than 5 for determining the pH value of the acidic aqueous dispersion according to the invention.
  • part of the insoluble particulate phosphate goes into solution.
  • a disadvantage of this method for adjusting the soluble phosphate content is the irreversible change in the particle size distribution, since primarily the particularly low-scale proportion of phosphate particles are dissolved. In practice, therefore, the addition of phosphate-buffered solutions for adjusting the soluble phosphate content and the pH according to the invention is preferred.
  • the determination of the proportions of water-soluble phosphates and insoluble phosphate in the acidic aqueous dispersion according to step (B) of the process according to the invention can be carried out by the ultrafiltration method. For this purpose, initially two identical volumes of the dispersion are taken. In the first volume, the proportion of soluble phosphates based on PO 4 in the ultrafiltration filtrate with a pore exclusion limit of 0.05 ⁇ m is determined analytically, while in the second volume the total dissolved phosphate content based on PO 4 is determined. The difference in the phosphate contents in the two identical volumes then gives the proportion of insoluble phosphate based on PO 4 in the acidic aqueous dispersion.
  • the stability of the acidic aqueous dispersion according to step (B) of the process according to the invention can be increased by an additional proportion of insoluble particulate oxides, so that their addition in a particular embodiment of the underlying process is preferred.
  • the stability of the acidic dispersion can be extended to a service life of several months by the additional proportion of the particulate oxides, without the agglomeration progressing so far that a sedimentation of the insoluble phosphates takes place.
  • the insoluble particulate oxides are present preferably selected from one or more oxides of silicon, iron, zirconium and / or titanium. Such oxides are sufficiently acid-stable and can thus develop their stabilizing effect in the acidic aqueous dispersion as a particulate component.
  • 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.
  • the mean particle diameter of the particulate oxides is to be measured in the absence of insoluble phosphates in an aqueous solution having a pH according to the invention by means of light scattering methods.
  • oxide particles can attach to the phosphate particles.
  • these agglomerates consisting of both phosphate and oxide particles only lose their activating effect for the phosphating step following step (B) if these agglomerates have a size significantly above 5 ⁇ m.
  • agglomerates of phosphate and oxide particles according to the invention also apply as insoluble phosphate, the content of which, with a particle size of less than 5 ⁇ m, is preferably at least 0.1 g / l, based on PO 4 .
  • the phosphating baths known to the person skilled in the art can be used for the phosphatizing conversion treatment, provided they are suitable for the deposition of a crystalline zinc phosphate layer at least on the uncovered iron and zinc surfaces of the component.
  • the iron surfaces according to the invention include surfaces of steel, while to The zinc surfaces in addition to galvanized steel surfaces and surfaces of alloy-galvanized steel and zinc alloys belong.
  • phosphating solutions which can be applied by spraying or dipping and which contain 0.2 to 3 g / l of zinc ions and
  • Phosphate ions to zinc ions is at least 3.7, and one or more
  • step (D) For the electrodeposition coating in step (D), the dipping lacquers known in detail to the person skilled in the art are applicable.
  • a passivating aftertreatment is interposed between the process steps (C) and (D), which on the one hand remedies defects in the phosphating and, on the other hand, is used in particular if in step (C) there is no homogeneous closed phosphating of the aluminum surfaces of the component with a coating weight of at least 0.5 g / m 2 of zinc phosphate takes place.
  • the passivating after-treatment of the component after the phosphating in step (C) and before an electrodeposition coating in step (D) is preferably carried out by means of an acidic composition containing fluorocomplexes of the metals Zr and / or Ti, wherein the proportion of fluorocomplexes based on the elements Zr and / or Ti is particularly preferably in the range of 50-1000 ppm.
  • 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.
  • a typical process sequence for the corrosion-protective treatment of metallic components according to the present invention consists of the following process steps.
  • a conventional activation solution (Fixodine ® 158 X, Fa. Henkel AG & Co. KGaA) is used, which is a dispersion of Zn 3 (PO 4 ) 2 -4H 2 0 (average particle diameter 2.0-2.2 measured with Malvern Zetasizer type DTS 5100) with a proportion of zinc phosphate of 0.15 g / l based on PO 4 , wherein the proportion of soluble phosphates on the solubility of the zinc phosphate is predetermined and a pH of 8.5 is present.
  • Zn 3 (PO 4 ) 2 -4H 2 0 average particle diameter 2.0-2.2 measured with Malvern Zetasizer type DTS 5100
  • phosphating solution was applied by spraying after activation to pre-phosphated galvanized steel sheets (ZE, pre-phosphated) and phosphated by spraying after about 20 s exposure time "mapping" in terms of "runners", due to the initial wetting with the phosphating solution in the case of a conventional activating pretreatment with FIXODINE ® at a pH value of 8.5.
  • the layer thickness of the dip coat (CathoGuard ® ) is lower at the points at which "mapping" occurs than in the other areas.
  • the according to method (B) were treated and therefore in which there were markers in the form of runners, the average layer thickness after 5-fold measurement in the runners to 20.6 microns are determined, while that outside the markers was 24.7 microns.
  • the microtome cross sections were measured by scanning electron microscopy.

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)

Abstract

L'invention concerne un procédé de traitement de protection contre la corrosion d'éléments métalliques qui ont été traités thermiquement à une température d'au moins 100°C et qui sont constitués au moins en partie de surfaces de zinc, les surfaces de l'élément constituées de zinc présentant en partie déjà une couche de phosphate de zinc cristallin, l'élément nettoyé subissant un prétraitement d'activation par une dispersion aqueuse acide de phosphates insolubles dont le pH n'est pas inférieur à (4), et l'élément subissant ensuite un traitement de conversion phosphatant avant l'application de la peinture électrophorétique par immersion. L'invention concerne en outre l'utilisation d'éléments métalliques qui ont été traités à l'aide d'un tel procédé, pour l'application de systèmes multicouches ainsi qu'en particulier pour la fabrication de carrosseries dans la construction automobile.
EP09722245.9A 2008-03-20 2009-03-16 Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés Active EP2255028B1 (fr)

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 true EP2255028A1 (fr) 2010-12-01
EP2255028B1 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)

* Cited by examiner, † Cited by third party
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
PL3392375T3 (pl) * 2017-04-21 2020-05-18 Henkel Ag & Co. Kgaa Sposób fosforanowania cynkowego komponentów metalowych w seriach, tworzącego warstwy, bez powstawania szlamu

Family Cites Families (11)

* Cited by examiner, † Cited by third party
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.
EP0611810B1 (fr) * 1993-02-17 1999-10-27 Kawasaki Steel Corporation Bande d'acier revêtue d'une couche organique apte au revêtement électrolytique et résistante à la corrosion et méthode de préparation
WO1996027034A1 (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
US6214132B1 (en) * 1997-03-07 2001-04-10 Henkel Corporation Conditioning metal surfaces prior to phosphate conversion coating
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
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
EP1378586B1 (fr) * 2002-06-13 2007-02-14 Nippon Paint Co., Ltd. Agent de conditionnement comprenant du phosphate de zinc pour traitement de conversion en phosphate de plaque d'acier, et produit correspondant
CN101243207B (zh) * 2005-08-19 2010-11-24 日本油漆株式会社 用于表面调整的组合物以及表面调整方法
EP1988189B1 (fr) * 2006-02-20 2014-03-12 Nippon Steel & Sumitomo Metal Corporation Procede de production d'une feuille d'acier galvanise par immersion a chaud ayant un revetement en phosphate de zinc

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009115485A1 *

Also Published As

Publication number Publication date
EP2255028B1 (fr) 2014-09-03
ES2524791T3 (es) 2014-12-12
US8329013B2 (en) 2012-12-11
DE102008017523A1 (de) 2009-09-24
US20110062027A1 (en) 2011-03-17
WO2009115485A1 (fr) 2009-09-24

Similar Documents

Publication Publication Date Title
EP1957692B2 (fr) Procede humide sur humide et solution acide exempte de chrome pour traitement protecteur contre la corrosion de surfaces en acier
EP2255026B1 (fr) Passivation optimisée à base de ti-zr de surfaces métalliques
EP2588646B1 (fr) Procédé de phosphatation sélective d'une construction métallique composite
EP1200641B1 (fr) Traitement prealable de surfaces d'aluminium a l'aide de solutions exemptes de chrome
EP3350357B1 (fr) Prétraitement de surfaces en aluminium avec des compositions contenant du zircon et du molybdène
EP1235949B1 (fr) Procede de phosphatation utilisation des pieces en metal ainsi phosphatees
WO2008055726A1 (fr) Solution de phosphatage à base de zr/ti utilisée pour passiver des surfaces composites métalliques
WO2000008231A1 (fr) Procede pour la phosphatation, le rinçage ulterieur et le trempage electrophoretique cathodique
WO2017194187A1 (fr) Couches de conversion pour surfaces métalliques
DE102019134298A1 (de) Verfahren zum Herstellen eines Stahlflachprodukts mit einer metallischen Schutzschicht auf Basis von Zink und einer auf einer Oberfläche der metallischen Schutzschicht erzeugten Phosphatierschicht und derartiges Stahlflachprodukt
EP2215285B1 (fr) Phosphatation au zirconium de pièces métalliques, en particulier en fer
EP2255028B1 (fr) Peinture électrophorétique par immersion optimisée d'éléments assemblés et partiellement préphosphatés
EP0656957B1 (fr) Procede de phosphatation d'acier zingue d'un seul cote
EP3044348B1 (fr) Solution de traitement contenant du chrome (iii) pour un procédé de production d'une couche de revêtement de protection anticorrosion, concentré d'une telle solution de traitement et procédé de production d'une couche de revêtement de protection anticorrosion
DE19718891C2 (de) Verfahren und Mittel zur Phosphatierung von Aluminiumoberflächen
WO2016193004A1 (fr) Conditionnement avant un traitement par conversion de surfaces métalliques
WO2001040546A1 (fr) Procede de phosphatation, de rinçage et d'electrolaquage par immersion cathodique
EP3303652B1 (fr) Prérinçage contenant une amine quaternaire pour le conditionnement avant un traitement de conversion
EP4411022A1 (fr) Traitement en plusieurs étapes pour la phosphatation activée de zinc de composants métalliques
DE10236526A1 (de) Verfahren zur Beschichtung von metallischen Oberflächen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100818

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140520

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 685673

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140915

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009009893

Country of ref document: DE

Effective date: 20141016

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2524791

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20141212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141204

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20141203

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 17544

Country of ref document: SK

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20140903

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150103

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150105

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009009893

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

26N No opposition filed

Effective date: 20150604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150316

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E023880

Country of ref document: HU

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20151130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150316

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150316

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 685673

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140903

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: HU

Payment date: 20240322

Year of fee payment: 16

Ref country code: DE

Payment date: 20240320

Year of fee payment: 16

Ref country code: SK

Payment date: 20240312

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20240320

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20240426

Year of fee payment: 16