EP1155163B1 - Procede pour la phosphatisation de surfaces en zinc ou en aluminium - Google Patents

Procede pour la phosphatisation de surfaces en zinc ou en aluminium Download PDF

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Publication number
EP1155163B1
EP1155163B1 EP00905014A EP00905014A EP1155163B1 EP 1155163 B1 EP1155163 B1 EP 1155163B1 EP 00905014 A EP00905014 A EP 00905014A EP 00905014 A EP00905014 A EP 00905014A EP 1155163 B1 EP1155163 B1 EP 1155163B1
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EP
European Patent Office
Prior art keywords
phosphating
zinc
phosphating solution
hydroxylamine
phosphate
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
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EP00905014A
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German (de)
English (en)
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EP1155163A1 (fr
Inventor
Thomas Nitschke
Werner Rentsch
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Chemetall GmbH
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Chemetall GmbH
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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
    • C23C22/184—Orthophosphates containing manganese cations containing also zinc cations containing also nickel 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
    • C23C22/364—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 manganese cations
    • C23C22/365—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 manganese cations containing also zinc and nickel cations

Definitions

  • the invention relates to a method for phosphating zinc or Aluminum surfaces with a phosphating solution based on zinc and nickel as cations and hydroxylamine as accelerators, which additionally Can contain fluoride and / or complex-bound fluoride.
  • the zinc surfaces are part of workpieces made of zinc or Zinc alloys exist, or they are made by hot dip galvanizing or by electrolytic galvanizing on workpieces containing iron, especially on Workpieces made of iron and steel, applied.
  • the aluminum surfaces are Part of workpieces made of aluminum or aluminum alloys consist. Can on the phosphated zinc and aluminum surfaces Varnishes, paints, plastic layers or oils are applied, and with surfaces provided with such an order are provided by the Phosphating much better protected against corrosion.
  • EP-A 0 315 059 discloses a process for phosphating surfaces made of iron, which works with a phosphating solution which contains 0.5 to 50 g / l hydroxylamine and 0.2 to 2.0 g / l Zn 2+ and 3 contains up to 25 g / l phosphate.
  • the phosphating solution can additionally contain iron, manganese, nickel, nitrate, fluoride and / or complex fluorides.
  • the known method is suitable not only for phosphating surfaces made of iron, but also surfaces made of zinc, zinc alloys, aluminum and aluminum alloys. This method has the disadvantage that it works with higher hydroxylamine concentrations which are equal to or> 0.5 g / l, because hydroxylamine is relatively expensive and comparatively unstable.
  • DE-A 195 38 778 describes a method for phosphating surfaces made of steel, galvanized steel, alloy galvanized steel and aluminum known in which the metal surface for a period between 1 and 8 Minutes in a phosphating solution containing 0.5 to 2 g / l zinc ions, 2 up to 25 g / l phosphate ions and 1.2 to 5 g / l hydroxylamine in free, ionic or contains complex bound form, a free acid content between 0 and 1.5 points and has a temperature in the range of 32 to 93 ° C.
  • This phosphating solution can additionally contain 0.2 to 1.5 g / l of manganese ions, 0.2 up to 1.5 g / l nickel ions and additional fluoride in free and / or complex bound form in amounts up to 2.5 g / l total fluoride. Finally the phosphating solution should not contain more than 0.5 g / l nitrate ions. Also this process works with relatively high hydroxylamine concentrations and limits the nitrate content to less than 0.5 g / l.
  • DE-A 196 06 018 describes a process for phosphating Metal surfaces made of steel, galvanized or alloy galvanized steel and / or aluminum, in which the metal surfaces are sprayed or Dive for a time between 3 seconds and 8 minutes with a zinc-containing one Phosphating solution in contact that contains 0.2 to 3 g / l zinc ions, 3 to 50 g / l Phosphate ions, 1 to 100 mg / l nickel ions, one or more accelerators, z. B. 0.01 to 0.2 g / l nitrite and 0.1 to 10 g / l hydroxylamine, wherein the The nitrate content of this solution is ⁇ 0.5 g / l.
  • the solution can additionally 0.1 to 4 g / l Manganese ions and up to 2.5 g / l total fluoride.
  • the in DE-A 196 Examples given in 06 018 show that the known method with comparatively high hydroxylamine concentrations (1.7 g / l Hydroxylammoniumsulfat) works and avoids a nitrate content.
  • DE-A 196 21 184 discloses a method for phosphating Metal surfaces made of steel, galvanized or alloy galvanized steel, Aluminum and / or aluminum-magnesium alloys, in which the Metal surfaces by spraying or dipping for a time between 3 Seconds and 8 minutes in contact with a zinc-containing phosphating solution brings the 0.2 to 3 g / l zinc ions, 3 to 50 g / l phosphate ions, 0.001 to 4 g / l Manganese ions, 0.001 to 0.5 g / l of one or more polymers and one or several accelerators, e.g. B.
  • phosphating solution used has a nitrate content that is not 0.5 g / l exceeds.
  • DE-A 197 05 701 describes a process for the phosphating of Surfaces made of steel, galvanized steel and / or aluminum and / or Alloys containing at least 50% by weight of iron, zinc or aluminum exist, with a zinc-containing acid phosphating solution works, which is free of copper ions and the 0.3 to 3 g / l zinc ions, 0.001 to 0.1 g / l nickel ions, 5 to 40 g / l phosphate ions and at least one accelerator, z. B. 0.1 to 10 g / l hydroxylamine. contains. This solution can additionally up to 4 g / l manganese ions and up to 2.5 g / l total fluoride.
  • a phosphating solution is known from WO 93/03 198 which is used for Phosphating of steel, zinc alloys and aluminum is used and the 5 to 25 g / l phosphate ions, 0.5 to 2 g / l zinc ions, 0.2 to 1.5 g / l Nickel ions, 0.2 to 1.5 g / l of manganese ions and 1 to 2.5 g / l of a hydroxylamine compound, Contains 0 to 1.5 g / l fluoride and 0 to 2 g / l nitrate.
  • This too Phosphating solution contains a large amount of hydroxylamine and limited the nitrate content to 2 g / l.
  • DE-A 196 39 596 discloses a process for phosphating Steel band or galvanized on one or both sides or galvanized alloy Steel strip by spray or dip treatment for a period of time in the area from 2 to 15 seconds at a temperature of 40 to 70 ° C with a Phosphating solution containing 1 to 4 g / l zinc ions, 0.8 to 3.5 g / l manganese ions, 10 to 30 g / l phosphate ions, 0.1 to 3 g / l hydroxylamine and not more than 1 g / l Contains nitrate ions and the free acid content in the range of 0.4 to 4 Has points.
  • This phosphating solution can additionally 0.8 to 3.5 g / l Contain nickel ions and up to 0.8 g / l total fluoride. If the Phosphating solution used in the phosphating of galvanized steel their nitrate content should not exceed 0.1 g / l.
  • the prior art gives the skilled worker the knowledge that the Hydroxylamine accelerator can also be used alone and then in the Usually is particularly effective if it is in the phosphating solution in a Concentration> 0.5 g / l is present.
  • the state of the art also conveys this Expert the knowledge that the nitrate concentration of Phosphating solution should generally be ⁇ 1 g / l, namely especially when the phosphating solution for phosphating Zinc surfaces are used because in this case the nitrate content should be even ⁇ 0.5 g / l, since the person skilled in the art assumes that higher nitrate contents the formation of the very disadvantageous, so-called Favor "specks".
  • nitrates of zinc, nickel and manganese are readily water-soluble and can be easily procured and handled easily, and the Free acid content (FS) can optionally be obtained in a simple manner Nitric acid can be adjusted.
  • the invention is therefore based on the object of a phosphating process to create that for phosphating zinc and aluminum surfaces is suitable for the workpieces to be phosphated, especially if they are after phosphating with varnishes, paints, plastic layers or oils coated, gives good corrosion properties and one Phosphating solution used compared to the known All in all, hydroxylamine-containing phosphating solutions are cheaper works without the quality of the phosphate layers produced, for example by the formation of specks on zinc surfaces or by not closed layers on aluminum surfaces, is reduced.
  • the object on which the invention is based is achieved by creating a method for phosphating zinc or aluminum surfaces by means of a phosphating solution which contains 0.5 to 2.0 g / l of Zn 2+ , 0.3 to 2.0 g / l of Ni 2+ , 0.1 to 0.3 g / l NH 2 OH, at least 3.0 g / l NO 3 - and 10.0 to 20.0 g / l phosphate (calculated as P 2 O 5 ) and the is applied to the surfaces by dipping or spraying at 35 to 75 ° C., the dipping time being 0.5 to 10 minutes and the spraying time being 3 seconds to 5 minutes.
  • the zinc surfaces phosphated according to the invention have no disadvantageous specks, although the phosphating solution used according to the invention has a high nitrate content of> 3 g / l, and that the phosphate layers produced on aluminum surfaces are completely closed, which is particularly due to the beneficial effect of the high nitrate content is attributed.
  • the phosphate layers produced by the process according to the invention give the workpieces in particular, which are coated with lacquers, paints, plastic layers or oils after phosphating, very good corrosion protection.
  • the phosphating solution used to carry out the method according to the invention additionally contains 0.4 to 1.5 g / l Mn 2+ .
  • the manganese content improves the positive corrosion protection effect of zinc phosphate layers in a known manner.
  • the phosphating of zinc surfaces is carried out in accordance with the method according to the invention with a phosphating solution which does not necessarily contain fluoride and complex-bound fluoride
  • the phosphating of aluminum surfaces is carried out with a phosphating solution which contains fluoride and / or complex-bound fluoride
  • the complex-bound fluoride for example in the form of SiF 6 2- or BF 4 - can be used.
  • SiF 6 2- is particularly suitable as a complex-bound fluoride for carrying out the process according to the invention and that a certain range must be observed with regard to the content of fluoride and complex-bound fluoride.
  • the phosphating solution used to carry out the process according to the invention additionally contains 0.2 to 1.5 g / l F - and / or 0.5 to 2.5 g / l SiF 6 2- .
  • the presence of such amounts of simple and / or complex-bound fluoride is advantageous in the phosphating of aluminum surfaces, since the aforementioned fluorides have a positive influence on the quality of the phosphate layers deposited on aluminum surfaces.
  • the simple fluoride F - can be in the form of hydrofluoric acid HF or its salts.
  • the zinc content is preferably 0.5 to 1.7 g / l.
  • the phosphating solution used for dipping contains 1 to 2 g / l Zn 2+ and the phosphating solution used for spraying contains 0.5 to 1.5 g / l Zn 2+ .
  • the method according to the invention produces particularly good results when the phosphating solution contains 3 to 15 g / l NO 3 - .
  • a phosphating solution which, in addition to the components already mentioned, preferably 0.5 to 1.3 g / l Ni 2+ , 12 to 16 g / l phosphate (calculated as P 2 O 5 ), 0, Contains 5 to 1.3 g / l Mn 2+ and 0.2 to 1.0 g / l F - and / or 0.8 to 2.0 g / l SiF 6 2- .
  • Hydroxylamine can be used as a free base, as a hydroxylamine complex or in the form of hydroxylammonium salts. If free hydroxylamine is added to the phosphating solution or the concentrate of this solution, it will largely be present as hydroxylammonium ion due to the acidic nature of these solutions. When using hydroxylammonium salts, the sulfates and phosphates are particularly suitable. The hydroxylamine content is preferably up to 0.3 g / l.
  • the nitrate can be added to the phosphating solution as HNO 3 or as the nitrate of zinc, manganese and / or nickel.
  • Zinc, manganese and nickel can also be used in the form of their oxides and / or carbonates for the preparation of the phosphating solution.
  • the phosphate is used as phosphoric acid or in the form of soluble phosphates.
  • SiF 6 2- is z. B. used as H 2 SiF 6 for the preparation of the phosphating solution.
  • the phosphating solution can contain alkali metal and / or ammonium cations in order to adjust the free acid (FS) content, which is in the range from 0.5 to 3.5 points in the process according to the invention ,
  • free acid is in the field of phosphating commonly used.
  • the free acid score is the number of ml that results if 10 ml of phosphating solution, which has been reduced to 50 ml were diluted with 0.1 normal sodium hydroxide solution up to a pH of 4.2 be titrated, the sample to be titrated then KCI until saturation is added if there is complex-bound fluoride in the sample, to avoid dissociation as much as possible.
  • Sheet metal used made of electrolytically galvanized steel and made of the alloy AlMgSi (AA6016) passed.
  • the sheets were first cleaned, being were immersed in an aqueous solution at 60 ° C for 10 minutes, the 20 g / l of the alkaline cleaner BONDER V 854 / 5M contained. Then were the sheets are rinsed with tap water by immersion. Then there was a Activation by treating the sheets with an aqueous solution that is 1.0 g / l contained the titanium phosphate-containing activating agent GARDOLENE V 6513. The activation was carried out by immersing the sheets for 30 seconds.
  • the Cleaning and activation are well known and known in phosphating common procedural steps. BONDER and GARDOLENE are registered trademarks of Chemetall GmbH, Frankfurt am Main.

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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)
  • Laminated Bodies (AREA)
  • Catalysts (AREA)

Claims (9)

  1. Procédé pour la phosphatation de surfaces en zinc ou en aluminium avec une solution de phosphatation à base de zinc et de nickel comme cations et d'hydroxylamine comme accélérateur, pouvant contenir du fluorure et/ou un complexe fluoré, caractérisé en ce que la solution de phosphatation contient de 0,5 à 2,0 g/l de Zn2+, de 0,3 à 2,0 g/l de Ni2+, de 0,1 à 0,3 g/l de NH2OH, au moins 3,0 g/l de NO3 - et de 10,0 à 20,0 g/l de phosphate (calculé comme P2O5), et qu'elle est appliquée sur les surfaces par immersion ou pulvérisation à une température allant de 35 à 75 °C avec une durée d'immersion allant de 0,5 à 10 minutes et une durée de pulvérisation allant de 3 secondes à 5 minutes.
  2. Procédé selon la revendication 1, caractérisé en ce que la solution de phosphatation contient en outre de 0,4 à 1,5 g/l de Mn2+.
  3. Procédé selon la revendication 1, caractérisé en ce que la solution de phosphatation contient en outre de 0,2 à 1,5 g/l de F- et/ou de 0,5 à 2,5 g/l de SiF6 2-.
  4. Procédé selon la revendication 1, caractérisé en ce que la solution de phosphatation utilisée pou l'immersion contient de 1,0 à 2,0 g/l de Zn2+ et la solution de phosphatation pour la pulvérisation contient de 0,5 à 1,5 g/l de Zn2+.
  5. Procédé selon la revendication 1, caractérisé en ce que la solution de phosphatation contient de 3 à 15 g/l de NO3 -.
  6. Procédé selon la revendication 1, caractérisé en ce que la solution de phosphatation contient de 0,5 à 1,3 g/l de Ni2+.
  7. Procédé selon les revendications 1 à 5, caractérisé en ce que la solution de phosphatation contient de 12 à 16 g/l de phosphate (calculé comme P2O5).
  8. Procédé selon les revendications 1 à 5, caractérisé en ce que la solution de phosphatation contient de 0,5 à 1,3 g/l de Mn2+.
  9. Procédé selon les revendications 1 à 5, caractérisé en ce que la solution de phosphatation contient de 0,2 à 1,0 g/l de F- et/ou de 0,8 à 2,0 g/l de SiF6 2-.
EP00905014A 1999-02-10 2000-02-03 Procede pour la phosphatisation de surfaces en zinc ou en aluminium Expired - Lifetime EP1155163B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19905479A DE19905479A1 (de) 1999-02-10 1999-02-10 Verfahren zur Phospatisierung von Zink- oder Aluminiumoberflächen
DE19905479 1999-02-10
PCT/EP2000/000865 WO2000047799A1 (fr) 1999-02-10 2000-02-03 Procede pour la phosphatisation de surfaces en zinc ou en aluminium

Publications (2)

Publication Number Publication Date
EP1155163A1 EP1155163A1 (fr) 2001-11-21
EP1155163B1 true EP1155163B1 (fr) 2003-11-05

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EP00905014A Expired - Lifetime EP1155163B1 (fr) 1999-02-10 2000-02-03 Procede pour la phosphatisation de surfaces en zinc ou en aluminium

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EP (1) EP1155163B1 (fr)
AT (1) ATE253651T1 (fr)
AU (1) AU2669400A (fr)
CA (1) CA2362556A1 (fr)
DE (2) DE19905479A1 (fr)
WO (1) WO2000047799A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2444406T3 (es) 2007-06-14 2014-02-24 Atotech Deutschland Gmbh Tratamiento anti-corrosión para capas de conversión
CN104361836B (zh) * 2014-11-20 2017-01-11 无锡科思电子科技有限公司 一种led显示屏铸铁箱体的酸洗磷化方法
CN109609940B (zh) * 2019-01-10 2021-01-29 廊坊师范学院 金属件抗磨性硅化液的制备方法及工件硅化处理工艺
WO2020174047A1 (fr) 2019-02-28 2020-09-03 Atotech Deutschland Gmbh Composition aqueuse de post-traitement et procédé de protection contre la corrosion

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Publication number Priority date Publication date Assignee Title
DE3712339A1 (de) * 1987-04-11 1988-10-20 Metallgesellschaft Ag Verfahren zur phosphatierung vor der elektrotauchlackierung
US4865653A (en) * 1987-10-30 1989-09-12 Henkel Corporation Zinc phosphate coating process
US5261973A (en) * 1991-07-29 1993-11-16 Henkel Corporation Zinc phosphate conversion coating and process
IT1274594B (it) * 1994-08-05 1997-07-18 Itb Srl Soluzione fosfatica acquosa acida e processo di fosfatazione di superfici metalliche che la utilizza
DE19538778A1 (de) * 1995-10-18 1997-04-24 Henkel Kgaa Schichtgewichtssteuerung bei Hydroxylamin-beschleunigten Phosphatiersystemen
DE19606018A1 (de) * 1996-02-19 1997-08-21 Henkel Kgaa Zinkphosphatierung mit geringen Gehalten an Nickel- und/oder Cobalt
DE19621184A1 (de) * 1996-05-28 1997-12-04 Henkel Kgaa Zinkphosphatierung mit integrierter Nachpassivierung
DE19735314C2 (de) * 1996-09-13 2001-05-23 Bayerische Motoren Werke Ag Verfahren zur Vorbehandlung von Bauteilen
DE19639596A1 (de) * 1996-09-26 1998-04-02 Henkel Kgaa Verfahren zur Phosphatierung von Stahlband
DE19639597C2 (de) * 1996-09-26 2000-01-20 Henkel Kgaa Verfahren zur Phosphatierung von laufenden Bändern aus kalt- oder warmgewalztem Stahl in schnellaufenden Bandanlagen
DE19705701A1 (de) * 1997-02-14 1998-08-20 Henkel Kgaa Verfahren zur Niedrig-Nickel-Phosphatierung mit metallhaltiger Nachspülung

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Publication number Publication date
DE50004321D1 (de) 2003-12-11
EP1155163A1 (fr) 2001-11-21
CA2362556A1 (fr) 2000-08-17
DE19905479A1 (de) 2000-08-17
ATE253651T1 (de) 2003-11-15
AU2669400A (en) 2000-08-29
WO2000047799A1 (fr) 2000-08-17

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