EP0287133A1 - Procédé de phosphatation avant la peinture électrophorétique par immersion - Google Patents

Procédé de phosphatation avant la peinture électrophorétique par immersion Download PDF

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Publication number
EP0287133A1
EP0287133A1 EP88200219A EP88200219A EP0287133A1 EP 0287133 A1 EP0287133 A1 EP 0287133A1 EP 88200219 A EP88200219 A EP 88200219A EP 88200219 A EP88200219 A EP 88200219A EP 0287133 A1 EP0287133 A1 EP 0287133A1
Authority
EP
European Patent Office
Prior art keywords
workpieces
contact
phosphating solution
brought
phosphating
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
EP88200219A
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German (de)
English (en)
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EP0287133B1 (fr
Inventor
Gerhard Müller
Werner Dr. Rausch
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
Original Assignee
Metallgesellschaft AG
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Filing date
Publication date
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0287133A1 publication Critical patent/EP0287133A1/fr
Application granted granted Critical
Publication of EP0287133B1 publication Critical patent/EP0287133B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
    • C23C22/36—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
    • C23C22/362—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 also 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
    • C23C22/07—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
    • C23C22/18—Orthophosphates containing manganese cations
    • C23C22/182—Orthophosphates containing manganese cations containing also zinc cations

Definitions

  • the invention relates to a method for phosphating workpieces made of steel or partially galvanized steel as pretreatment for electrocoating, in which the cleaned and rinsed workpieces are first activated with an aqueous, weakly alkaline solution containing titanium phosphate and then with an aqueous acidic phosphating solution containing zinc phosphate in Dipping processes are treated and its application to the pretreatment for cathodic electrocoating.
  • the object of the invention is to provide a method for the phosphating of steel or partially galvanized steel which provides uniformly covering phosphate layers and is particularly well suited as a pretreatment for electrocoating.
  • the object is achieved by designing the method of the type mentioned at the outset in accordance with the invention in such a way that the workpieces are brought into contact with a phosphating solution at a temperature of 40 to 60 ° C. 1.8 to 5 g / l Zn 0.1 to 7 g / l Fe (II) 8 to 25 g / l P2O5 5 to 30 g / l NO3 contains and in which the ratio of free acid to total acid is set to 0.04 to 0.07.
  • the method according to the invention is used to treat steel, e.g. of cold-rolled strip and sheet made of soft, unalloyed steels as well as of high-strength cold-rolled thin sheets made of phosphorous steels, micro-alloyed steels and dual-phase steels.
  • the galvanizing layers on galvanized steel include e.g. those produced on the hot-dip path based on Zn, Zn + Fe, Zn + Al, Zn + Al + Si and those obtained on the electrolytic path based on Zn, Zn + Ni, Zn + Fe.
  • the method according to the invention can be applied to workpieces of various types and shapes, ie flat parts, deep-drawn parts, welded, folded, flared and adhesive constructions.
  • workpieces of various types and shapes ie flat parts, deep-drawn parts, welded, folded, flared and adhesive constructions.
  • adequate ventilation and outflow of the liquid must be ensured.
  • Typical workpieces of complex shape and with a wide variety of materials are automobile bodies.
  • the workpieces are first cleaned in the usual way, for example with alkaline degreasing agents, and then rinsed in water. This is followed by treatment in an aqueous, slightly alkaline solution in which activating titanium phosphate is finely dispersed.
  • Phosphating takes place in the temperature range from 40 to 60 ° C. Below this temperature, the phosphating process becomes too slow to form opaque phosphate layers in reasonable times. Above 60 ° C, energy losses rise sharply and there is an increasing risk of disruptive drying and incrustation.
  • the phosphating process according to the invention belongs to the group of processes on the "iron side” and is therefore characterized by comparatively low sludge formation.
  • the iron (II) concentration can be below 0.1 g / l. After a few throughputs, however, it quickly reaches the area according to the invention as a result of the pickling removal taking place on the steel.
  • the ratio of free acid to total acid is of great importance for the implementation of the method according to the invention. Below 0.04, valuable components of the phosphating solution are lost due to increasing sludge formation. Above 0.07, the rate of phosphating drops sharply.
  • the setting of the optimal ratio is carried out by coordinating the concentration of the bath components, optionally with the use of further cations, e.g. of Na, K, NH4, or other anions, e.g. of Cl, SO4.
  • the workpieces are brought into contact with a phosphating solution which contains a maximum of 3 g / l of Zn and preferably 0.5 to 5 g / l of Fe (II).
  • phosphating solution which additionally contains manganese in an amount of up to 3 g / l or magnesium in an amount of up to 3 g / l.
  • a phosphating solution which additionally contains manganese in an amount of up to 3 g / l or magnesium in an amount of up to 3 g / l.
  • cobalt is added, up to 0.3 g / l and nickel up to 0.15 g / l are preferred.
  • streaky phosphate layers can be formed on steel.
  • Another expedient embodiment of the invention consists in bringing the workpieces into contact with a phosphating solution which contains up to 3 g / l, preferably at least 0.3 g / l, of hydroxylamine.
  • concentration of Ni can be increased to 0.5 g / l if at least 0.3 g / l of hydroxylamine are present at the same time.
  • Hydroxylamine has an accelerating effect on the phosphating process.
  • the workpieces are brought into contact with a phosphating solution containing up to 3 g / l SiF6 and / or up to 3 g / l BF4 and / or up to 1.5 g / l F contains.
  • Additions of preferably up to 3 g / l tartaric acid and / or citric acid serve to reduce the weight per unit area of the phosphate layers and to further accelerate the layer formation.
  • phosphating solutions which contain up to 0.5 g / l, preferably 0.05 to 0.35 g / l, of m-nitrobenzenesulfonate.
  • m-Nitrobenzenesulfonate causes a strong acceleration of the phosphating with a simultaneous significant reduction in the thickness of the phosphate.
  • the contact of the phosphating solution with oxygen-containing gas and the addition of chlorate and / or peroxide compounds can be used for this oxidation.
  • the phosphating process according to the invention can also do so be modified that the immersion in the phosphating solution is preceded by a spraying with the phosphating solution and / or is connected.
  • the diving times are usually in the range from 2 to 5 minutes, while the pre-spraying and / or post-spraying takes from a few seconds to about 0.5 minutes.
  • the phosphating process according to the invention is carried out in such a way that phosphate layers with a basis weight of 1 to 5 g / m2 are produced. In this way, optimal corrosion protection is combined with good bending adhesion of the paint coatings.
  • the layers formed by the process according to the invention are suitable as a primer for anodic and cathodic electrocoating materials. Particularly favorable results are achieved if the process is used for pretreatment for cathodic electrocoating and lacquer film thicknesses in the range from approximately 15 to 40 ⁇ m are to be achieved.
  • the electrocoat layers can serve as a base coat for further layers of paint or as single-layer paints.
  • Sheets of body steel and galvanized steel were degreased with an alkaline cleaner, rinsed in water, with an aqueous suspension of about 50 mg / l titanium phosphate in an aqueous solution of 1 g / l disodium phosphate and 0.25 g / l tetrasodium pyrophosphate by immersion at 40 ° C for 1 min and then in the phosphating solutions 1 to 6 listed in the table phosphated at 55 ° C in diving.
  • a minimum phosphating time of 2 to 3 minutes was found on steel and less than 1 minute on galvanized steel.
  • the treatment time in the phosphating bath is defined as the minimum phosphating time, which is necessary for the formation of a visually uniformly covering phosphate layer.
  • the layer weight for steel was between 3.6 and 4.3 g / m2, for zinc between 2.2 and 3.0 g / m2.
  • Free acid (total acid) is defined as the amount of ml n / 10 NaOH required to neutralize 10 ml bath sample against dimethyl yellow (phenolphthalein). The ratio of free acid to total acid was (0.054 to 0.063): 1.
  • rinsing was carried out with water, passivated with a rinse solution containing chromium, rinsed with demineralized water and then electrodeposited cathodically.

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
EP88200219A 1987-04-11 1988-02-09 Procédé de phosphatation avant la peinture électrophorétique par immersion Expired - Lifetime EP0287133B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3712339 1987-04-11
DE19873712339 DE3712339A1 (de) 1987-04-11 1987-04-11 Verfahren zur phosphatierung vor der elektrotauchlackierung

Publications (2)

Publication Number Publication Date
EP0287133A1 true EP0287133A1 (fr) 1988-10-19
EP0287133B1 EP0287133B1 (fr) 1992-03-25

Family

ID=6325439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88200219A Expired - Lifetime EP0287133B1 (fr) 1987-04-11 1988-02-09 Procédé de phosphatation avant la peinture électrophorétique par immersion

Country Status (8)

Country Link
EP (1) EP0287133B1 (fr)
JP (1) JP2674075B2 (fr)
AU (1) AU1442788A (fr)
BR (1) BR8801679A (fr)
CA (1) CA1332910C (fr)
DE (2) DE3712339A1 (fr)
ES (1) ES2030493T3 (fr)
GB (1) GB2204067B (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380067A1 (fr) * 1989-01-26 1990-08-01 Henkel Corporation Méthode pour lubrifier du fer et de l'acier avant le façonnage à froid
WO1990012901A1 (fr) * 1989-04-21 1990-11-01 Henkel Kommanditgesellschaft Auf Aktien Procede sans chlorate ni nitrite pour produire des couches de phosphate de zinc contenant du nickel et du manganese
WO1990015889A1 (fr) * 1989-06-21 1990-12-27 Henkel Kommanditgesellschaft Auf Aktien Procede de production d'enduits en phosphate de zinc contenant du manganese et du magnesium
EP0414296A1 (fr) * 1989-08-22 1991-02-27 METALLGESELLSCHAFT Aktiengesellschaft Procédé d'obtention de revêtements de phosphates sur des surfaces métalliques
EP0418634A1 (fr) * 1989-09-07 1991-03-27 Henkel Corporation Procédés d'amélioration de revêtement de protection pour de l'acier recouvert de zinc
WO1993003198A1 (fr) * 1991-07-29 1993-02-18 Henkel Corporation Revetement a base de phosphate de zinc et procede correspondant
WO1993009266A1 (fr) 1991-11-01 1993-05-13 Henkel Corporation Composition et procede pour former un revetement de conversion de phosphate
WO1994013856A1 (fr) * 1992-12-07 1994-06-23 Henkel Kommanditgesellschaft Auf Aktien Procede de phosphatation de surfaces metalliques
WO1995004842A1 (fr) * 1993-08-06 1995-02-16 Metallgesellschaft Aktiengesellschaft Procede de phosphatage d'un feuillard d'acier galvanise une face
DE19541285A1 (de) * 1995-11-06 1997-05-07 Kluthe Gmbh Chem Werke Verfahren und Mittel zur Phosphatierung von Metalloberflächen
WO1997021850A1 (fr) * 1995-12-14 1997-06-19 Ppg Industries, Inc. Compositions pour revetement de conversion en phosphate de zinc et procede afferent
EP0930379A1 (fr) * 1998-01-14 1999-07-21 Nippon Paint Co., Ltd. Procédé pour former des revêtements de conversion en vue d'appliquer des couches électrophorétiques à basse teneur en plomb
WO1999045171A1 (fr) * 1998-03-02 1999-09-10 Henkel Kommanditgesellschaft Auf Aktien Commande de poids de couche lors de la phosphatation d'une bande
EP0966554A1 (fr) * 1997-01-24 1999-12-29 Henkel Corporation Composition aqueuse de phosphatation et procede pour surfaces metalliques
WO2000008224A2 (fr) * 1998-07-21 2000-02-17 Brent International Plc Revetements de conversion a base de phosphate au nickel-zinc
WO2000047799A1 (fr) * 1999-02-10 2000-08-17 Chemetall Gmbh Procede pour la phosphatisation de surfaces en zinc ou en aluminium
US6179934B1 (en) 1997-01-24 2001-01-30 Henkel Corporation Aqueous phosphating composition and process for metal surfaces
EP1290244A1 (fr) * 2000-04-10 2003-03-12 Henkel Kommanditgesellschaft auf Aktien Procede pour former des revetements de phosphate sur des metaux non ferreux et des toles d'acier plaquees

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0819531B2 (ja) * 1989-03-02 1996-02-28 日本ペイント株式会社 金属表面のリン酸亜鉛処理方法
DE19718891C2 (de) * 1997-05-03 2001-03-15 Kluthe Gmbh Chem Werke Verfahren und Mittel zur Phosphatierung von Aluminiumoberflächen
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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2203893A1 (en) * 1972-10-20 1974-05-17 Fosfa Col Sas Di A Dal Pane Et Ambient temp. phosphating - using accelerator contg. bath to produce coating espec. amenable to accepting electrophoretic paint coatings
FR2449135A1 (fr) * 1979-02-13 1980-09-12 Nippon Paint Co Ltd Procede pour la phosphatation d'une surface metallique destinee a etre revetu par electrodeposition
EP0045110A1 (fr) * 1980-07-25 1982-02-03 Metallgesellschaft Ag Procédé pour la production de revêtements de phosphate sur les surfaces de fer et d'acier et son usage
EP0121274A1 (fr) * 1983-03-31 1984-10-10 Metallgesellschaft Ag Procédé de phosphatation de surfaces métalliques
DE3345498A1 (de) * 1983-12-16 1985-06-27 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur herstellung von phosphatueberzuegen
FR2569203A1 (fr) * 1984-08-16 1986-02-21 Produits Ind Cie Fse Procede de traitement par conversion chimique de substrats en zinc ou en l'un de ses alliages, concentre et bain utilises pour la mise en oeuvre de ce procede
EP0186823A2 (fr) * 1984-12-20 1986-07-09 HENKEL CORPORATION (a Delaware corp.) Procédé pour faciliter la déformation à froid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL271948A (fr) * 1960-12-02
BE635970A (fr) * 1962-11-13
DE2240049B2 (de) * 1972-08-16 1977-05-12 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur herstellung von phosphatueberzuegen auf eisen und stahl und konzentrate zur herstellung und ergaenzung der dabei verwendeten phosphatierungsloesung
GB1408702A (en) * 1973-02-09 1975-10-01 Pyrene Chemical Services Ltd Phosphate coating compositions and processes
JPS5165041A (en) * 1974-12-04 1976-06-05 Nippon Packaging Kk Kinzokuno rinsanenhimakukeiseihoho
DE3245411A1 (de) * 1982-12-08 1984-07-05 Gerhard Collardin GmbH, 5000 Köln Verfahren zur phosphatierung elektrolytisch verzinkter metallwaren

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2203893A1 (en) * 1972-10-20 1974-05-17 Fosfa Col Sas Di A Dal Pane Et Ambient temp. phosphating - using accelerator contg. bath to produce coating espec. amenable to accepting electrophoretic paint coatings
FR2449135A1 (fr) * 1979-02-13 1980-09-12 Nippon Paint Co Ltd Procede pour la phosphatation d'une surface metallique destinee a etre revetu par electrodeposition
EP0045110A1 (fr) * 1980-07-25 1982-02-03 Metallgesellschaft Ag Procédé pour la production de revêtements de phosphate sur les surfaces de fer et d'acier et son usage
EP0121274A1 (fr) * 1983-03-31 1984-10-10 Metallgesellschaft Ag Procédé de phosphatation de surfaces métalliques
DE3345498A1 (de) * 1983-12-16 1985-06-27 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur herstellung von phosphatueberzuegen
FR2569203A1 (fr) * 1984-08-16 1986-02-21 Produits Ind Cie Fse Procede de traitement par conversion chimique de substrats en zinc ou en l'un de ses alliages, concentre et bain utilises pour la mise en oeuvre de ce procede
EP0186823A2 (fr) * 1984-12-20 1986-07-09 HENKEL CORPORATION (a Delaware corp.) Procédé pour faciliter la déformation à froid

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380067A1 (fr) * 1989-01-26 1990-08-01 Henkel Corporation Méthode pour lubrifier du fer et de l'acier avant le façonnage à froid
WO1990012901A1 (fr) * 1989-04-21 1990-11-01 Henkel Kommanditgesellschaft Auf Aktien Procede sans chlorate ni nitrite pour produire des couches de phosphate de zinc contenant du nickel et du manganese
WO1990015889A1 (fr) * 1989-06-21 1990-12-27 Henkel Kommanditgesellschaft Auf Aktien Procede de production d'enduits en phosphate de zinc contenant du manganese et du magnesium
EP0414296A1 (fr) * 1989-08-22 1991-02-27 METALLGESELLSCHAFT Aktiengesellschaft Procédé d'obtention de revêtements de phosphates sur des surfaces métalliques
EP0418634A1 (fr) * 1989-09-07 1991-03-27 Henkel Corporation Procédés d'amélioration de revêtement de protection pour de l'acier recouvert de zinc
CN1038949C (zh) * 1991-07-29 1998-07-01 亨凯尔公司 处理金属基质的磷酸盐水涂液及其浓缩液组合物及处理方法
US5261973A (en) * 1991-07-29 1993-11-16 Henkel Corporation Zinc phosphate conversion coating and process
TR28730A (tr) * 1991-07-29 1997-02-20 Henkel Corp Cinko fosfat ile kimyasal kaplama islemi.
WO1993003198A1 (fr) * 1991-07-29 1993-02-18 Henkel Corporation Revetement a base de phosphate de zinc et procede correspondant
WO1993009266A1 (fr) 1991-11-01 1993-05-13 Henkel Corporation Composition et procede pour former un revetement de conversion de phosphate
AU664400B2 (en) * 1991-11-01 1995-11-16 Henkel Corporation Phosphate conversion coating composition and process
WO1994013856A1 (fr) * 1992-12-07 1994-06-23 Henkel Kommanditgesellschaft Auf Aktien Procede de phosphatation de surfaces metalliques
WO1995004842A1 (fr) * 1993-08-06 1995-02-16 Metallgesellschaft Aktiengesellschaft Procede de phosphatage d'un feuillard d'acier galvanise une face
DE19541285A1 (de) * 1995-11-06 1997-05-07 Kluthe Gmbh Chem Werke Verfahren und Mittel zur Phosphatierung von Metalloberflächen
DE19541285C2 (de) * 1995-11-06 2003-04-17 Kluthe Gmbh Chem Werke Verfahren und Mittel zur Phosphatierung von Metalloberflächen
US5868874A (en) * 1995-12-14 1999-02-09 Ppg Industries, Inc. Zinc phosphate conversion coating compositions and process
WO1997021850A1 (fr) * 1995-12-14 1997-06-19 Ppg Industries, Inc. Compositions pour revetement de conversion en phosphate de zinc et procede afferent
US5797987A (en) * 1995-12-14 1998-08-25 Ppg Industries, Inc. Zinc phosphate conversion coating compositions and process
US6179934B1 (en) 1997-01-24 2001-01-30 Henkel Corporation Aqueous phosphating composition and process for metal surfaces
EP0966554A1 (fr) * 1997-01-24 1999-12-29 Henkel Corporation Composition aqueuse de phosphatation et procede pour surfaces metalliques
EP0966554A4 (fr) * 1997-01-24 2000-04-05 Henkel Corp Composition aqueuse de phosphatation et procede pour surfaces metalliques
EP0930379A1 (fr) * 1998-01-14 1999-07-21 Nippon Paint Co., Ltd. Procédé pour former des revêtements de conversion en vue d'appliquer des couches électrophorétiques à basse teneur en plomb
US6461450B1 (en) 1998-03-02 2002-10-08 Henkel Kommanditgesellschaft Fur Aktien Method for controlling the coating weight for strip-phosphating
WO1999045171A1 (fr) * 1998-03-02 1999-09-10 Henkel Kommanditgesellschaft Auf Aktien Commande de poids de couche lors de la phosphatation d'une bande
WO2000008224A3 (fr) * 1998-07-21 2000-08-17 Brent Int Plc Revetements de conversion a base de phosphate au nickel-zinc
WO2000008224A2 (fr) * 1998-07-21 2000-02-17 Brent International Plc Revetements de conversion a base de phosphate au nickel-zinc
WO2000047799A1 (fr) * 1999-02-10 2000-08-17 Chemetall Gmbh Procede pour la phosphatisation de surfaces en zinc ou en aluminium
EP1290244A1 (fr) * 2000-04-10 2003-03-12 Henkel Kommanditgesellschaft auf Aktien Procede pour former des revetements de phosphate sur des metaux non ferreux et des toles d'acier plaquees
EP1290244A4 (fr) * 2000-04-10 2004-09-15 Henkel Kgaa Procede pour former des revetements de phosphate sur des metaux non ferreux et des toles d'acier plaquees

Also Published As

Publication number Publication date
BR8801679A (pt) 1988-11-16
DE3869455D1 (de) 1992-04-30
DE3712339A1 (de) 1988-10-20
CA1332910C (fr) 1994-11-08
JPS64277A (en) 1989-01-05
JP2674075B2 (ja) 1997-11-05
ES2030493T3 (es) 1992-11-01
EP0287133B1 (fr) 1992-03-25
GB2204067B (en) 1991-11-27
GB2204067A (en) 1988-11-02
GB8808478D0 (en) 1988-05-11
AU1442788A (en) 1988-10-13

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