EP0359296B1 - Procédé de phosphatation - Google Patents

Procédé de phosphatation Download PDF

Info

Publication number
EP0359296B1
EP0359296B1 EP89201935A EP89201935A EP0359296B1 EP 0359296 B1 EP0359296 B1 EP 0359296B1 EP 89201935 A EP89201935 A EP 89201935A EP 89201935 A EP89201935 A EP 89201935A EP 0359296 B1 EP0359296 B1 EP 0359296B1
Authority
EP
European Patent Office
Prior art keywords
zinc
phosphating
phosphating solution
contacted
process according
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
Application number
EP89201935A
Other languages
German (de)
English (en)
Other versions
EP0359296A1 (fr
Inventor
Klaus Bittner
Gerhard Müller
Werner Dr. Rausch
Klaus Dr. Wittel
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.)
GEA Group AG
Continentale Parker SA
Original Assignee
Metallgesellschaft AG
Continentale Parker SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metallgesellschaft AG, Continentale Parker SA filed Critical Metallgesellschaft AG
Priority to AT89201935T priority Critical patent/ATE85817T1/de
Publication of EP0359296A1 publication Critical patent/EP0359296A1/fr
Application granted granted Critical
Publication of EP0359296B1 publication Critical patent/EP0359296B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • C23C22/13—Orthophosphates containing zinc cations containing also nitrate or nitrite anions
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34—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
    • C23C22/368—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 magnesium cations

Definitions

  • the invention relates to a process for the phosphating of galvanized surfaces, in particular of galvanized steel, by means of aqueous zinc ions, phosphate ions, further layer-forming cations and phosphating solutions containing accelerators, and its use for the treatment of galvanized steel strip, optionally with subsequent application of lacquer or organic foils.
  • DE-OS 32 45 411 describes a process for the formation of zinc phosphate layers on electrolytically galvanized steel.
  • the area-related mass of less than 2 g / m2 hopeit which can be achieved within a short time and which is achieved with this method is advantageous, since this is the later welding of the galvanized and phosphated strip allowed.
  • the disadvantage is the restriction to electrolytically galvanized surfaces. Bands galvanized in the hot-dip process, on the other hand, show a low reactivity towards the phosphating solution, so that the desired layer formation cannot usually be achieved in the desired short treatment time.
  • Another method is known from DE-A-20 49 350.
  • the object of the invention is to provide a process for the phosphating of galvanized surfaces which is equally suitable for zinc coatings which have been applied electrolytically or in the hot-dip process and leads to bright, almost white coatings, phosphate layers with less than 2 g / m2 of area-related mass, which are suitable for protection against bright corrosion and as a primer for paint and organic foils, and which forms closed coatings in a short time.
  • Zinc coatings are understood to be those made from pure zinc, but also from zinc alloys with zinc as the main component. These include e.g. Galfan (approx. 5% Al, less than 1% mixed metal, balance zinc), zinc / nickel alloys (approx. 10% Ni, balance Zn) zinc / iron and zinc / cobalt alloys.
  • the accelerators used in the aforementioned phosphating solution are common.
  • the phosphating solution used in the process according to the invention works with a comparatively high S value, so that it is highly aggressive towards the zinc surface.
  • the addition of the phosphating solution, which is essential to the invention, is therefore carried out using a concentrate which, measured on conventional concentrates, contains little or no zinc.
  • An S value in the range from 0.2 to 0.3 is particularly advantageous.
  • the S value is the ratio of "free acid” - calculated as P2O5 - and the so-called “total acid Fischer", ie the total amount P2O5, expressed as consumption of 0.1 n NaOH when titrating a 10 ml bath sample (cf. W. Rausch: "The Phosphating of Metals", Eugen G. Leuze Verlag, Saulgau 1974, pages 274 to 277).
  • Phosphate layers with particularly favorable properties are obtained if, according to an advantageous development of the invention, the surfaces are brought into contact with a phosphating solution which contains a maximum of 1.5 g / l zinc, preferably 0.5 to 1 g / l zinc, at a weight ratio of Magnesium: contains zinc from (0.5 to 3): 1.
  • the surfaces are brought into contact with a phosphating solution which additionally contains nickel ions in an amount of at most 1.5 g / l, preferably in an amount of at most 0.5 g / l.
  • a phosphating solution which additionally contains nickel ions in an amount of at most 1.5 g / l, preferably in an amount of at most 0.5 g / l.
  • the surface is brought into contact with a phosphating solution which additionally contains simple or complex fluoride in an amount of at most 3 g / l, preferably from 0.1 to 1.5 g / l, (each calculated as F).
  • a phosphating solution which additionally contains simple or complex fluoride in an amount of at most 3 g / l, preferably from 0.1 to 1.5 g / l, (each calculated as F).
  • simple or complex fluoride in an amount of at most 3 g / l, preferably from 0.1 to 1.5 g / l, (each calculated as F).
  • complex fluoride compounds are BF4 ⁇ , SiF6 ⁇ , PF6 ⁇ , ZrF6 ⁇ or TiF6 ⁇ .
  • the chemical consumption occurring in the treatment of the surfaces is taken into account by supplementing the phosphating solution with a concentrate. Because of the high aggressiveness of the phosphating solution, the zinc ions required for the layer formation mainly come from the treated surface, which leads to favorable layer properties.
  • the phosphating solution is preferably supplemented with a zinc-free concentrate.
  • nitrate is used as an accelerator, it is advisable to supplement it with a concentrate in which the weight ratio of NO3: P2O5 is in the range from (0.15 to 0.7): 1, preferably from (0.3 to 0.5) : 1, lies.
  • the surface to be phosphated must be free of organic and inorganic contaminants. This is ensured when using the method according to the invention in an electrolytic strip galvanizing line. In other cases, cleaning with cleaning solutions, which usually work in an alkaline but also in an acidic environment, is common, followed by a one- or multi-stage rinsing with water.
  • activating agent contain finely ground zinc phosphate or specially prepared compounds from titanium and phosphate ions.
  • the activating agent is applied by dipping or flooding, preferably by spraying. If the method according to the invention is used to treat strip material, the treatment is carried out for 0.5 to 3 s.
  • the phosphating according to the invention follows the activation. This is done by diving or flooding, preferably by spraying.
  • the temperature of the treatment solution is usually in the range of 40 to 65 ° C. During this treatment, a light gray layer of zinc and magnesium phosphates forms.
  • the mass per unit area of the layer is below 2 g / m2, usually below 1.5 g / m2.
  • the phosphating treatment is followed by rinsing with water in order to remove unreacted treatment solution from the surface of the treated workpiece.
  • this rinsing can be dispensed with.
  • the phosphate layers produced can be rinsed with rinsing agents before drying.
  • Weakly acidic solutions containing chromium (VI) and / or chromium (III) ions are mostly used.
  • the method according to the invention is suitable for all galvanized surfaces, taking into account the definition given above for "galvanized”.
  • a particularly advantageous application is the treatment of galvanized, in particular electrolytically galvanized steel strip.
  • phosphating can take place directly after the galvanizing in the galvanizing line.
  • the phosphating is a final treatment, if necessary with rinsing, it serves as bearing protection against the formation of white rust and to improve the forming properties of the galvanized strip, in particular to reduce the zinc abrasion during pressing and deep drawing as well as to reduce tool wear.
  • Another application of the method according to the invention is the pretreatment of steel strip which is coated with zinc electrolytically or in the hot-dip process, before the subsequent coating with lacquer or films made of organic polymers.
  • the phosphating according to the invention takes place here to improve the adhesion and the corrosion protection of the subsequently applied organic coatings.
  • This process is known in the art under the term "coil coating”.
  • varnishes include, for example, alkyl, acrylate, epoxy, polyester, silicone-modified acrylate and polyester paints, as well as polyvinyl chloride organosols and plastisols, polyvinyl fluoride and polyvinylidene fluoride systems.
  • the films come in particular from polyvinyl chloride, Polyvinyl fluoride or thermoplastic acrylates.
  • the table shows that the methods according to the invention offer advantages with regard to the mass per unit area and the appearance of the layer.

Landscapes

  • 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)
  • Saccharide Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Claims (10)

  1. Procédé pour la phosphatation de surfaces zinguées, en particulier d'acier zingué, au moyen de solutions aqueuses de phosphatation contenant des ions zinc, des ions phosphate, d'autres cations filmogènes ainsi que des accélérateurs, dans lequel on met les surfaces en contact, pendant une durée de 10 secondes au maximum, avec une solution de phosphatation qui contient
       de 0,5 à 5,0 g/l de zinc
       de 3 à 20 g/l de phosphate (exprimé en P₂O₅)
       de 0,3 à 3 g/l de magnésium,
    à un rapport pondéral magnésium:zinc allant de 0,5:1 à 10:1, présente un indice S dans la plage allant de 0,1 à 0,4, et est enrichie avec un concentré dans lequel le rapport pondéral du zinc au phosphate (exprimé en P₂O₅) se situe dans la plage allant de 0:8 à 1:8.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on met les surfaces en contact avec une solution de phosphatation qui contient un nitrate en tant qu'accélérateur.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on met les surfaces en contact avec une solution de phosphatation qui présente un indice S dans la plage allant de 0,2 à 0,3.
  4. Procédé selon la revendication 1, 2 ou 3, caractérisé en ce que l'on met les surfaces en contact avec une solution de phosphatation qui contient au maximum 1,5 g/l de zinc, de préférence de 0,5 à 1 g/l de zinc, à un rapport pondéral magnésium:zinc allant de 0,5:1 à 3:1.
  5. Procédé selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que l'on met les surfaces en contact avec une solution de phosphatation qui contient en outre des ions nickel en une quantité de 1,5 g/l au maximum, de préférence en une quantité de 0,5 g/l au maximum.
  6. Procédé selon une ou plusieurs des revendications 1 à 5, caractérisé en ce que l'on met les surfaces en contact avec une solution de phosphatation qui contient en outre un fluorure simple ou complexe, en une quantité de 3 g/l au maximum, de préférence de 0,1 à 1,5 g/l (exprimé dans chaque cas en F).
  7. Procédé selon une ou plusieurs des revendications 1 à 6, caractérisé en ce que l'on met les surfaces en contact avec une solution de phosphatation qui est enrichie avec un concentré exempt de zinc.
  8. Procédé selon une ou plusieurs des revendications 1 à 7, caractérisé en ce que l'on met les surfaces en contact avec une solution de phosphatation qui est enrichie avec un concentré dans lequel le rapport pondéral NO₃:P₂O₅ se situe dans la plage allant de 0,15:1 à 0,7:1, de préférence dans la plage allant de 0,3:1 à 0,5:1.
  9. Utilisation du procédé selon une ou plusieurs des revendications 1 à 8, pour le traitement de bande d'acier zinguée, de préférence de bande d'acier zinguée par électrolyse.
  10. Utilisation selon la revendication 9, avec la disposition que l'on effectue ensuite une peinture ou un revêtement avec des pellicules organiques.
EP89201935A 1988-08-24 1989-07-22 Procédé de phosphatation Expired - Lifetime EP0359296B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89201935T ATE85817T1 (de) 1988-08-24 1989-07-22 Phosphatierverfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3828676 1988-08-24
DE3828676A DE3828676A1 (de) 1988-08-24 1988-08-24 Phosphatierverfahren

Publications (2)

Publication Number Publication Date
EP0359296A1 EP0359296A1 (fr) 1990-03-21
EP0359296B1 true EP0359296B1 (fr) 1993-02-17

Family

ID=6361479

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89201935A Expired - Lifetime EP0359296B1 (fr) 1988-08-24 1989-07-22 Procédé de phosphatation

Country Status (8)

Country Link
US (1) US5152849A (fr)
EP (1) EP0359296B1 (fr)
JP (1) JP2770860B2 (fr)
AT (1) ATE85817T1 (fr)
CA (1) CA1332560C (fr)
DE (2) DE3828676A1 (fr)
ES (1) ES2038400T3 (fr)
GB (1) GB2223239B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03107469A (ja) * 1989-09-21 1991-05-07 Nippon Parkerizing Co Ltd 裸耐食性に優れたりん酸塩化成皮膜を有する亜鉛系めっき材料
JP3219453B2 (ja) * 1992-03-17 2001-10-15 日本パーカライジング株式会社 耐黒変性に優れた亜鉛系めっき鋼板の製造方法
DE4326388A1 (de) * 1993-08-06 1995-02-09 Metallgesellschaft Ag Verfahren zur phosphatierenden Behandlung von einseitig verzinktem Stahlband
JP3479609B2 (ja) * 1999-03-02 2003-12-15 日本パーカライジング株式会社 スラッジ発生のないリン酸亜鉛処理液およびリン酸亜鉛処理方法
JP4630326B2 (ja) * 1999-08-09 2011-02-09 新日本製鐵株式会社 加工性に優れたリン酸塩処理亜鉛系めっき鋼板の製造方法
EP1142699A4 (fr) * 1999-08-26 2004-12-08 Jfe Steel Corp Tole d'acier traitee en surface
JP3872621B2 (ja) 1999-11-05 2007-01-24 新日本製鐵株式会社 自動車車体用亜鉛系メッキ鋼板
JP4267213B2 (ja) 2001-03-27 2009-05-27 新日本製鐵株式会社 耐食性および色調に優れたリン酸亜鉛処理亜鉛系メッキ鋼板
JP4868748B2 (ja) * 2005-03-01 2012-02-01 日新製鋼株式会社 リン酸塩処理鋼板
JP5119864B2 (ja) * 2006-10-31 2013-01-16 Ｊｆｅスチール株式会社 リン酸塩処理亜鉛系めっき鋼板及びその製造方法
JP4992385B2 (ja) * 2006-10-31 2012-08-08 Ｊｆｅスチール株式会社 有機樹脂被覆リン酸塩処理亜鉛系めっき鋼板及びその製造方法
SG176435A1 (en) * 2006-10-31 2011-12-29 Jfe Steel Corp Phosphate-treated galvanized steel sheet and method for making the same
JP5462467B2 (ja) * 2008-10-31 2014-04-02 日本パーカライジング株式会社 金属材料用化成処理液および処理方法
JP6927146B2 (ja) * 2018-05-25 2021-08-25 Ｊｆｅスチール株式会社 化成処理めっき鋼板の製造方法
CN113930096A (zh) * 2020-06-29 2022-01-14 Ａｇｃ株式会社 复合材料、其制造方法和用途
CN113881934B (zh) * 2021-11-04 2023-04-21 湖南金化科技集团有限公司 一种少渣少灰的锌系磷化液

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB648888A (en) * 1947-04-25 1951-01-17 Walterisation Company Ltd Improvements in the production of phosphate coatings on metal surfaces
US3597283A (en) * 1969-10-08 1971-08-03 Lubrizol Corp Phosphating solutions for use on ferrous metal and zinc surfaces
US3676224A (en) * 1970-10-16 1972-07-11 Lubrizol Corp Phosphating solution with scale suppressing characteristics
JPS5165041A (en) * 1974-12-04 1976-06-05 Nippon Packaging Kk Kinzokuno rinsanenhimakukeiseihoho
JPS5357142A (en) * 1976-11-05 1978-05-24 Nippon Packaging Kk Process for forming black coating on aluminum or aluminum alloy
DE3245411A1 (de) * 1982-12-08 1984-07-05 Gerhard Collardin GmbH, 5000 Köln Verfahren zur phosphatierung elektrolytisch verzinkter metallwaren
US4529451A (en) * 1983-01-03 1985-07-16 Detrex Chemical Industries, Inc. Zinc phosphate coated metal and process of producing same
EP0172806A4 (fr) * 1984-01-06 1986-05-16 Ford Motor Co Revetement de conversion de phosphate a resistance alcaline.
DE3636390A1 (de) * 1986-10-25 1988-04-28 Metallgesellschaft Ag Verfahren zur erzeugung von phosphatueberzuegen auf metallen
US4717431A (en) * 1987-02-25 1988-01-05 Amchem Products, Inc. Nickel-free metal phosphating composition and method for use
EP0304108B1 (fr) * 1987-08-19 1992-05-13 Metallgesellschaft Ag Procédé de phosphatation de métaux
ES2036023T3 (es) * 1988-11-25 1993-05-01 Metallgesellschaft Aktiengesellschaft Procedimiento para la aplicacion de recubrimiento de fosfato.

Also Published As

Publication number Publication date
ATE85817T1 (de) 1993-03-15
ES2038400T3 (es) 1993-07-16
GB8919200D0 (en) 1989-10-04
EP0359296A1 (fr) 1990-03-21
JP2770860B2 (ja) 1998-07-02
US5152849A (en) 1992-10-06
DE58903562D1 (de) 1993-03-25
CA1332560C (fr) 1994-10-18
GB2223239B (en) 1992-09-23
GB2223239A (en) 1990-04-04
JPH02101175A (ja) 1990-04-12
DE3828676A1 (de) 1990-03-01

Similar Documents

Publication Publication Date Title
EP0359296B1 (fr) Procédé de phosphatation
DE3234558C2 (fr)
WO2011067094A1 (fr) Procédé de prétraitement à étapes multiples pour des composants métalliques présentant des surfaces en zinc et en fer
EP1235949B1 (fr) Procede de phosphatation utilisation des pieces en metal ainsi phosphatees
EP0796356B1 (fr) Procede d'application de revetements de phosphate sur des surfaces metalliques
EP1390564A2 (fr) Procede de revetement de surfaces metalliques et utilisation des substrats ainsi revetus
DE3689442T2 (de) Saure, wässrige Phosphatüberzugslösungen für ein Verfahren zum Phosphatbeschichten metallischer Oberfläche.
EP0478648B1 (fr) Procede de production d'enduits en phosphate de zinc contenant du manganese et du magnesium
EP1521863B1 (fr) Procede de revetement de surfaces metalliques
EP0410497B1 (fr) Procédé pour le rinçage passif de couches de phosphates
EP0361375A1 (fr) Procédé de production de revêtements
EP0486576B1 (fr) Procede pour la realisation de revetements de phosphate de zinc comportant du manganese sur de l'acier galvanise
EP0931179B1 (fr) Procede pour la phosphatation d'un feuillard d'acier
WO2001098557A1 (fr) Agent adhesif dans des solutions pour conversion
EP0111223B1 (fr) Procédé de phosphatation de surfaces métalliques et compositions appropriées à ce procédé
DE69012374T2 (de) Phosphatbeschichtungen für Metalloberflächen.
EP0264811B1 (fr) Procédé d'obtention de revêtements de phosphate
WO1999014397A1 (fr) Procede de phosphatation d'un feuillard d'acier
EP1090160A1 (fr) Commande de poids de couche lors de la phosphatation d'une bande
EP0866888B1 (fr) Procede pour la phosphatation de surfaces metalliques
DE19905479A1 (de) Verfahren zur Phospatisierung von Zink- oder Aluminiumoberflächen
DE10231279B3 (de) Verfahren zur Beschichtung von metallischen Oberflächen und Verwendung der derart beschichteten Substrate
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR IT NL SE

17P Request for examination filed

Effective date: 19900602

17Q First examination report despatched

Effective date: 19920722

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR IT NL SE

REF Corresponds to:

Ref document number: 85817

Country of ref document: AT

Date of ref document: 19930315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58903562

Country of ref document: DE

Date of ref document: 19930325

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2038400

Country of ref document: ES

Kind code of ref document: T3

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

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 89201935.7

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

Ref country code: SE

Payment date: 19980624

Year of fee payment: 10

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

Ref country code: AT

Payment date: 19980625

Year of fee payment: 10

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

Ref country code: NL

Payment date: 19980629

Year of fee payment: 10

Ref country code: FR

Payment date: 19980629

Year of fee payment: 10

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

Ref country code: DE

Payment date: 19980630

Year of fee payment: 10

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

Ref country code: BE

Payment date: 19980709

Year of fee payment: 10

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

Ref country code: ES

Payment date: 19980716

Year of fee payment: 10

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19990528

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: 19990722

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

Ref country code: ES

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

Effective date: 19990723

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

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990730

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

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990731

Ref country code: BE

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

Effective date: 19990731

BERE Be: lapsed

Owner name: SOC. CONTINENTALE PARKER

Effective date: 19990731

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 NON-PAYMENT OF DUE FEES

Effective date: 20000201

EUG Se: european patent has lapsed

Ref document number: 89201935.7

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20000810

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 NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050722