EP0064790A1 - Verfahren zur Phosphatierung von Metallen sowie dessen Anwendung zur Vorbehandlung für die Elektrotauchlackierung - Google Patents

Verfahren zur Phosphatierung von Metallen sowie dessen Anwendung zur Vorbehandlung für die Elektrotauchlackierung Download PDF

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Publication number
EP0064790A1
EP0064790A1 EP82200514A EP82200514A EP0064790A1 EP 0064790 A1 EP0064790 A1 EP 0064790A1 EP 82200514 A EP82200514 A EP 82200514A EP 82200514 A EP82200514 A EP 82200514A EP 0064790 A1 EP0064790 A1 EP 0064790A1
Authority
EP
European Patent Office
Prior art keywords
phosphating
zinc
metal surfaces
zinc phosphate
phosphate solutions
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.)
Ceased
Application number
EP82200514A
Other languages
German (de)
English (en)
French (fr)
Inventor
Dieter Hauffe
Gerhard Müller
Werner Dr. Rausch
Gudrun Volling
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 Ste
Continentale Parker SA
Original Assignee
Metallgesellschaft AG
Continentale Parker Ste
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6131837&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0064790(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Metallgesellschaft AG, Continentale Parker Ste, Continentale Parker SA filed Critical Metallgesellschaft AG
Publication of EP0064790A1 publication Critical patent/EP0064790A1/de
Ceased 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

Definitions

  • the invention relates to a method for phosphating.
  • Metals especially iron, steel and zinc, with acidic, aqueous oxidizing agent-containing zinc phosphate solutions and its use for pretreating the metal surfaces for electrocoating.
  • DE-OS 25 38 347 describes acidic aqueous phosphating solutions which contain at least 0.5% phosphate ions and at least 0.03% Zn and in which the molar weight ratio of phosphate ions to nitrate ions is about 1: (0.7 to 1.3) and the molar weight ratio of zinc ions to phosphate ions is less than 0.116: 1 (converted to weight ratio Zn: P 2 O 5 ⁇ 0.107: 1).
  • the object of the invention is to provide a method which does not have the disadvantages of the known methods and which also provides uniform, very corrosion-resistant phosphate layers over large throughputs.
  • 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 metal surfaces are brought into contact with zinc phosphate solutions which contain, in which the weight ratio of Zn to P 2 O 5 is set to a value of (0.012 to 0.12): 1 and of Ni to Zn to a value of (0 to 1.5): 1 and which is set with Zn , N i and P 2 0 5 in a weight ratio of (0.18 to 0.33): (0 to 0.06): l can be added.
  • the method according to the invention is intended in particular for the treatment of iron, steel and zinc. However, it is also suitable for the phosphating of aluminum.
  • the metal surfaces can be treated by spraying, flooding and also immersion. However, it is also possible with combined working methods, e.g. Syringes - Diving - Syringes, Syringes - Diving, Dip-Spraying and the like are applicable.
  • the contact times for the phosphating solution with the metal surface are in the usual range and can e.g. for spraying 75 seconds to 3 minutes, for diving 2 to 5 minutes and for spraying - diving 20 seconds spraying, 3 minutes diving.
  • the bath temperatures are usually between 30 and 65 ° C.
  • nickel is particularly beneficial in the treatment of zinc surfaces. But also with steel it often leads to an improvement in the layer quality.
  • the solutions can also contain other cations, for example calcium, copper, manganese, cobalt, magnesium. Usually, however, their content does not exceed 0.5 g / l.
  • concentration of divalent iron in the bath is kept low by the use of oxidizing agents that oxidize iron (II) to iron (III) and is usually not more than 50 to 100 mg / l. Divalent iron is often not present at all.
  • Iron (III) is normally in the concentration given by the low solubility of iron (III) phosphate. tration present, which can be between 3 and 40 mg / 1 Fe (III) depending on the particular bath composition.
  • cations from the alkali metal and / or ammonium group are still present.
  • the baths used in the process according to the invention contain one or more oxidizing agents which are capable of oxidizing divalent to trivalent iron.
  • oxidizing agents which are capable of oxidizing divalent to trivalent iron.
  • Favorable results are achieved, for example, with the following additives: 2 to 25 g / l NO 3 ; 1 to 6 g / l C10 3 ; 0.1 to 2 g / 1 organic nitro compounds, for example Na-m-nitrobenzenesulfonate; 0.05 to 0.5 g / l alkali nitrite; 0.02 to 0.1 g / 1 H 2 0 2 .
  • the layer formation can be improved by adding simple and / or complex fluorides.
  • solutions for reducing the phosphate layer weight may contain compounds known per se, such as hydroxycarboxylic acids (e.g. tartaric acid, citric acid), polyphosphates (e.g. tripolyphosphate, hexametaphosphate).
  • hydroxycarboxylic acids e.g. tartaric acid, citric acid
  • polyphosphates e.g. tripolyphosphate, hexametaphosphate
  • the cations and anions in the phosphating bath must be present in such a proportion that the acidity of the bath is in or near the phosphating equilibrium.
  • the weight per unit area of the phosphate layers produced by the process according to the invention is generally in the range between 0.8 and 5 g / m 2 .
  • activating agents eg based on titanium phosphate, in the pre-rinse bath or in the last cleaning stage is recommended.
  • the phosphate layers produced with the method according to the invention are suitable in principle for all types of application phosphate layers known until today.
  • the layers result in an unusually strong improvement in the resistance of the coating film against infiltration under corrosive stress as well as a significant increase in the paint adhesion to the metallic substrate.
  • the baths When supplemented with the specified concentrates according to Examples 1 to 4, the baths could be kept in the optimal range practically indefinitely. The layer formation was flawless in all cases. In the nitrite-containing baths, it was only necessary to add the nitrite accelerator in a manner known per se. From time to time, a little sodium hydroxide solution had to be added to bath 4 in order to keep the free acid at the desired value.

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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)
EP82200514A 1981-05-09 1982-05-01 Verfahren zur Phosphatierung von Metallen sowie dessen Anwendung zur Vorbehandlung für die Elektrotauchlackierung Ceased EP0064790A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813118375 DE3118375A1 (de) 1981-05-09 1981-05-09 Verfahren zur phosphatierung von metallen sowie dessen anwendung zur vorbehandlung fuer die elektrotauchlackierung
DE3118375 1981-05-09

Publications (1)

Publication Number Publication Date
EP0064790A1 true EP0064790A1 (de) 1982-11-17

Family

ID=6131837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200514A Ceased EP0064790A1 (de) 1981-05-09 1982-05-01 Verfahren zur Phosphatierung von Metallen sowie dessen Anwendung zur Vorbehandlung für die Elektrotauchlackierung

Country Status (12)

Country Link
US (1) US4419199A (enrdf_load_stackoverflow)
EP (1) EP0064790A1 (enrdf_load_stackoverflow)
JP (1) JPS6056429B2 (enrdf_load_stackoverflow)
AU (1) AU527375B2 (enrdf_load_stackoverflow)
BR (1) BR8202637A (enrdf_load_stackoverflow)
CA (1) CA1200470A (enrdf_load_stackoverflow)
DE (1) DE3118375A1 (enrdf_load_stackoverflow)
ES (1) ES8302794A1 (enrdf_load_stackoverflow)
GB (1) GB2098242B (enrdf_load_stackoverflow)
MX (1) MX159701A (enrdf_load_stackoverflow)
PT (1) PT74827B (enrdf_load_stackoverflow)
ZA (1) ZA822715B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512840A1 (fr) * 1981-09-17 1983-03-18 Amchem Prod Solutions aqueuses acides pour revetements de phosphate de zinc et leurs concentres, procedes de revetement les mettant en oeuvre et solutions d'activation du metal utilisables dans ces procedes
EP0141341A1 (de) * 1983-10-26 1985-05-15 Metallgesellschaft Ag Verfahren zum Aufbringen von Phosphatüberzügen
GB2196024A (en) * 1986-09-05 1988-04-20 Pyrene Chemical Services Ltd Process for producing phosphate coatings
GB2199047A (en) * 1986-10-16 1988-06-29 Nihon Parkerizing Forming phosphate coatings
EP0261597A3 (en) * 1986-09-26 1988-07-13 Chemfil Corporation Phosphate coating composition and method of applying a zinc-nickel phosphate coating
EP0315059A1 (en) * 1987-10-30 1989-05-10 HENKEL CORPORATION (a Delaware corp.) Process and composition for zinc phosphate coating
US5904786A (en) * 1994-12-09 1999-05-18 Metallgesellschaft Aktiengesellschaft Method of applying phosphate coatings to metal surfaces

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001531A1 (en) * 1981-10-22 1983-04-28 Peripherals Data Method and apparatus for positioning a transducer using embedded servo track encoding and microprocessor control
DE3245411A1 (de) * 1982-12-08 1984-07-05 Gerhard Collardin GmbH, 5000 Köln Verfahren zur phosphatierung elektrolytisch verzinkter metallwaren
DE3325974A1 (de) * 1983-07-19 1985-01-31 Gerhard Collardin GmbH, 5000 Köln Verfahren und universell anwendbare mittel zum beschleunigten aufbringen von phosphatueberzuegen auf metalloberflaechen
AU605301B2 (en) * 1983-08-23 1991-01-10 Nippon Paint Co., Ltd. Process for phosphating metal surfaces
DE3407513A1 (de) * 1984-03-01 1985-09-05 Gerhard Collardin GmbH, 5000 Köln Verfahren zur zink-calcium-phosphatierung von metalloberflaechen bei niedriger behandlungstemperatur
DE3408577A1 (de) * 1984-03-09 1985-09-12 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur phosphatierung von metallen
ES8606528A1 (es) * 1985-02-22 1986-04-01 Henkel Iberica Procedimiento para el fosfatado de superficies metalicas, especialmente ferreas
JPS6267181A (ja) * 1985-09-19 1987-03-26 Nippon Parkerizing Co Ltd チタン又はその合金材料の化成処理方法
JPS6283477A (ja) * 1985-10-08 1987-04-16 Nippon Parkerizing Co Ltd 鉄鋼材の表面処理方法
US4663007A (en) * 1985-10-25 1987-05-05 Chrysler Motors Corporation Method to evaluate sheet metal lubricants cratering potential on metal primer
GB8527833D0 (en) * 1985-11-12 1985-12-18 Pyrene Chemicals Services Ltd Phosphate coating of metals
US4981757A (en) * 1986-01-13 1991-01-01 Ashland Oil, Inc. Coating compositions and method for forming a self-healing corrosion preventative film
US5153032A (en) * 1986-01-13 1992-10-06 Ashland Oil, Inc. Coating compositions and method for forming a self-healing corrosion preventative film
US5024697A (en) * 1986-01-13 1991-06-18 Ashland Oil, Inc. Coating composition and method for forming a self-heating corrosion preventative film
DE3631759A1 (de) * 1986-09-18 1988-03-31 Metallgesellschaft Ag Verfahren zum erzeugen von phosphatueberzuegen auf metalloberflaechen
US5238506A (en) * 1986-09-26 1993-08-24 Chemfil Corporation Phosphate coating composition and method of applying a zinc-nickel-manganese phosphate coating
EP0327153B1 (de) * 1988-02-03 1993-08-04 Metallgesellschaft Ag Verfahren zur Erzeugung von Phosphatüberzügen auf Metallen
DE3913089A1 (de) * 1989-04-21 1990-10-25 Henkel Kgaa Chlorat- und nitritfreies verfahren zur herstellung von nickel- und manganhaltigen zinkphosphatschichten
US5797987A (en) * 1995-12-14 1998-08-25 Ppg Industries, Inc. Zinc phosphate conversion coating compositions and process
JP3219371B2 (ja) * 1996-03-21 2001-10-15 日本ペイント株式会社 金属成型物の塗装方法
BR0011045A (pt) * 1999-05-28 2002-04-16 Henkel Koanditgesellschaft Auf Pós-passivação de uma superfìcie metálica fosfatada
JP2001170557A (ja) * 1999-12-21 2001-06-26 Nisshin Steel Co Ltd めっき鋼板用表面処理液およびその処理方法
WO2001076811A1 (en) * 2000-04-07 2001-10-18 Whyco Technologies, Inc. Method of masking coatings and resultant object

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2049350A1 (de) * 1969-10-08 1971-04-15 Lubrizol Corp Phosphatierungslosungen und ihre Verwendung zum Korrosionsschutz von Eisen metall und Zinkoberflachen
DE2232067A1 (de) * 1971-07-06 1973-01-18 Metallgesellschaft Ag Phosphatierungsloesungen
DE2342558A1 (de) * 1973-08-23 1975-03-20 Metallgesellschaft Ag Verfahren zur phosphatierung von metallen
DE2538347A1 (de) * 1974-08-30 1976-03-11 Nippon Paint Co Ltd Zinkphosphatloesungen zur ausbildung von zinkphosphatschichten auf metallen
DE3004927A1 (de) * 1979-02-13 1980-08-21 Nippon Paint Co Ltd Verfahren zur phosphatierung von metallen
DE2907094A1 (de) * 1979-02-23 1980-09-04 Metallgesellschaft Ag Phosphatierungsloesungen
EP0018841A1 (en) * 1979-05-02 1980-11-12 Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America Composition and process for zinc-phosphate coating a metal surface, coated metal surface and a process for painting the coated surface

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506418A (enrdf_load_stackoverflow) * 1973-05-21 1975-01-23
GB2009253B (en) * 1977-11-29 1982-06-23 Ici Ltd Coating process
JPS555589A (en) * 1978-06-29 1980-01-16 Mitsubishi Electric Corp Audio amplifying circuit
JPS5554576A (en) * 1978-10-13 1980-04-21 Nippon Parkerizing Co Ltd Forming method for phosphate film of steel
JPS5811515B2 (ja) * 1979-05-11 1983-03-03 日本ペイント株式会社 金属表面にリン酸亜鉛皮膜を形成するための組成物

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2049350A1 (de) * 1969-10-08 1971-04-15 Lubrizol Corp Phosphatierungslosungen und ihre Verwendung zum Korrosionsschutz von Eisen metall und Zinkoberflachen
DE2232067A1 (de) * 1971-07-06 1973-01-18 Metallgesellschaft Ag Phosphatierungsloesungen
DE2342558A1 (de) * 1973-08-23 1975-03-20 Metallgesellschaft Ag Verfahren zur phosphatierung von metallen
DE2538347A1 (de) * 1974-08-30 1976-03-11 Nippon Paint Co Ltd Zinkphosphatloesungen zur ausbildung von zinkphosphatschichten auf metallen
DE3004927A1 (de) * 1979-02-13 1980-08-21 Nippon Paint Co Ltd Verfahren zur phosphatierung von metallen
DE2907094A1 (de) * 1979-02-23 1980-09-04 Metallgesellschaft Ag Phosphatierungsloesungen
EP0018841A1 (en) * 1979-05-02 1980-11-12 Amchem Products, Inc. a Corporation organised under the Laws of the State of Delaware United States of America Composition and process for zinc-phosphate coating a metal surface, coated metal surface and a process for painting the coated surface

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512840A1 (fr) * 1981-09-17 1983-03-18 Amchem Prod Solutions aqueuses acides pour revetements de phosphate de zinc et leurs concentres, procedes de revetement les mettant en oeuvre et solutions d'activation du metal utilisables dans ces procedes
EP0141341A1 (de) * 1983-10-26 1985-05-15 Metallgesellschaft Ag Verfahren zum Aufbringen von Phosphatüberzügen
GB2196024A (en) * 1986-09-05 1988-04-20 Pyrene Chemical Services Ltd Process for producing phosphate coatings
EP0261597A3 (en) * 1986-09-26 1988-07-13 Chemfil Corporation Phosphate coating composition and method of applying a zinc-nickel phosphate coating
GB2199047A (en) * 1986-10-16 1988-06-29 Nihon Parkerizing Forming phosphate coatings
GB2199047B (en) * 1986-10-16 1990-12-12 Nihon Parkerizing Processes for forming phosphate coatings
EP0315059A1 (en) * 1987-10-30 1989-05-10 HENKEL CORPORATION (a Delaware corp.) Process and composition for zinc phosphate coating
US4865653A (en) * 1987-10-30 1989-09-12 Henkel Corporation Zinc phosphate coating process
US5904786A (en) * 1994-12-09 1999-05-18 Metallgesellschaft Aktiengesellschaft Method of applying phosphate coatings to metal surfaces

Also Published As

Publication number Publication date
CA1200470A (en) 1986-02-11
ES511885A0 (es) 1983-02-16
BR8202637A (pt) 1983-04-19
MX159701A (es) 1989-08-08
PT74827B (fr) 1983-11-14
GB2098242B (en) 1984-05-02
DE3118375C2 (enrdf_load_stackoverflow) 1989-06-15
AU527375B2 (en) 1983-03-03
JPS6056429B2 (ja) 1985-12-10
JPS57194258A (en) 1982-11-29
DE3118375A1 (de) 1982-11-25
PT74827A (fr) 1982-05-01
GB2098242A (en) 1982-11-17
US4419199A (en) 1983-12-06
ZA822715B (en) 1983-06-29
ES8302794A1 (es) 1983-02-16
AU8256482A (en) 1982-11-18

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