EP0042636A2 - Verfahren zur Oberflächenbehandlung von durch einen Überzug geschützten Oberflächen - Google Patents

Verfahren zur Oberflächenbehandlung von durch einen Überzug geschützten Oberflächen Download PDF

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Publication number
EP0042636A2
EP0042636A2 EP81200604A EP81200604A EP0042636A2 EP 0042636 A2 EP0042636 A2 EP 0042636A2 EP 81200604 A EP81200604 A EP 81200604A EP 81200604 A EP81200604 A EP 81200604A EP 0042636 A2 EP0042636 A2 EP 0042636A2
Authority
EP
European Patent Office
Prior art keywords
metallic coating
coating
stable compounds
metal
surface treatment
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.)
Withdrawn
Application number
EP81200604A
Other languages
English (en)
French (fr)
Other versions
EP0042636A3 (de
Inventor
Jacques Pelerin
Dimitri Coutsouradis
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of EP0042636A2 publication Critical patent/EP0042636A2/de
Publication of EP0042636A3 publication Critical patent/EP0042636A3/de
Withdrawn legal-status Critical Current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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C23C2/28—Thermal after-treatment, e.g. treatment in oil bath

Definitions

  • the present invention relates to a method of surface treatment of surfaces protected by a metal coating and belonging to a metal substrate of any shape, but preferably in the form of steel sheets.
  • a zinc-coated material is usually subjected to a surface transformation treatment (for example, chromating and phosphating) suitable for zinc, after the application of the zinc coating to delay the appearance of white rust on the zinc deposit.
  • a surface transformation treatment for example, chromating and phosphating
  • a coating of zinc-compatible paint is also generally applied, in addition to the transformation treatment, in order to improve the corrosion resistance and the decorative appearance.
  • alloys such as, for example, zinc and aluminum has not provided definitive solutions to these problems, but it is known that the implementation of this type of coating requires more extensive surface preparation which has the disadvantage of being very expensive.
  • the process which is the subject of the present invention is based on work relating to the analysis of the structure of the coating layers.
  • the process which is the subject of the present invention is essentially characterized in that a metallic coating bath is used to which one or more determined elements have been added and in that the metallic coating obtained is subjected to a surface treatment which has the effect of generating on the coating obtained an additional protective layer formed of stable compounds.
  • a first variant of the process of the invention consists in using a metal bath containing zinc.
  • a second variant of the process which is the subject of the present invention consists in using a metal bath containing zinc and aluminum.
  • the Al content of the above-mentioned original metal bath is less than 0.4% by weight.
  • Another method of applying the method according to the invention consists in using a metal bath containing one or more of the following elements: Zn, Al, Mg, Pb, Sb.
  • the determined element or elements which have been added to the metal bath are selected from the following: Al, Be, Ce, Cr, La, Mn, Mo, Si , Ta, Ti, Te, Th.
  • a sixth method of implementing the process consists in subjecting the metal coating to a thermal surface treatment intended to form stable compounds on its surface.
  • a seventh method of implementing the method consists in subjecting the metallic coating formed to a treatment under a controlled atmosphere with a view to forming stable compounds on its surface.
  • a treatment is applied to the metallic coating formed which uses a chemical solution such that there is formation of stable compounds on its surface.
  • the stable compounds formed on the surface of the metallic coating involve one or more of the determined elements added to the metallic coating bath.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Thermal Sciences (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Coating With Molten Metal (AREA)
EP81200604A 1980-06-09 1981-06-03 Verfahren zur Oberflächenbehandlung von durch einen Überzug geschützten Oberflächen Withdrawn EP0042636A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6/47182A BE883723A (fr) 1980-06-09 1980-06-09 Procede de traitement superficiel de surfaces protegees par un revetement metallique
BE647182 1980-06-09

Publications (2)

Publication Number Publication Date
EP0042636A2 true EP0042636A2 (de) 1981-12-30
EP0042636A3 EP0042636A3 (de) 1982-01-13

Family

ID=3874857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200604A Withdrawn EP0042636A3 (de) 1980-06-09 1981-06-03 Verfahren zur Oberflächenbehandlung von durch einen Überzug geschützten Oberflächen

Country Status (2)

Country Link
EP (1) EP0042636A3 (de)
BE (1) BE883723A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127504A1 (de) * 1981-07-11 1983-01-27 Preussag Ag Metall, 3380 Goslar "verfahren zur unterdrueckung des entstehens von antimonwasserstoff"
EP0148740A1 (de) * 1983-12-22 1985-07-17 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Verfahren zum heissen Beschichten und Schmelzbad dafür
GB2224041A (en) * 1988-09-02 1990-04-25 Verdun Hildreth Farnsworth Galvanising bath
US5141680A (en) * 1988-04-18 1992-08-25 3D Systems, Inc. Thermal stereolighography
FR2676752A1 (fr) * 1991-05-24 1992-11-27 Siderurgie Fse Inst Rech Procede de galvanisation de produits metallurgiques, notamment de toles d'acier et revetement obtenu par ce procede.
EP0852264A1 (de) * 1997-01-02 1998-07-08 Industrial Galvanizadora S.A. Zinklegierungen, die antikorrosive Beschichtungen auf eisenhaltigen Werkstoffen liefern

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR884466A (fr) * 1941-10-11 1943-08-18 Westfalische Union Ag Fu R Eis Procédé de fabrication de fils zingués
US3056694A (en) * 1958-07-11 1962-10-02 Inland Steel Co Galvanizing process
FR1530948A (fr) * 1966-07-11 1968-06-28 Cominco Ltd Procédé de production de revêtements colorés, notamment à base de zinc
JPS4937693B1 (de) * 1968-04-25 1974-10-11
US4152472A (en) * 1973-03-19 1979-05-01 Nippon Steel Corporation Galvanized ferrous article for later application of paint coating
GB1566198A (en) * 1977-02-26 1980-04-30 Inland Steel Co Zincaluminium alloy coating and method of hot-dip coating

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127504A1 (de) * 1981-07-11 1983-01-27 Preussag Ag Metall, 3380 Goslar "verfahren zur unterdrueckung des entstehens von antimonwasserstoff"
EP0148740A1 (de) * 1983-12-22 1985-07-17 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Verfahren zum heissen Beschichten und Schmelzbad dafür
US5141680A (en) * 1988-04-18 1992-08-25 3D Systems, Inc. Thermal stereolighography
GB2224041A (en) * 1988-09-02 1990-04-25 Verdun Hildreth Farnsworth Galvanising bath
US5096666A (en) * 1988-09-02 1992-03-17 Farnsworth Verdun H Rare earth and aluminium containing galvanizing bath and method
FR2676752A1 (fr) * 1991-05-24 1992-11-27 Siderurgie Fse Inst Rech Procede de galvanisation de produits metallurgiques, notamment de toles d'acier et revetement obtenu par ce procede.
EP0852264A1 (de) * 1997-01-02 1998-07-08 Industrial Galvanizadora S.A. Zinklegierungen, die antikorrosive Beschichtungen auf eisenhaltigen Werkstoffen liefern

Also Published As

Publication number Publication date
EP0042636A3 (de) 1982-01-13
BE883723A (fr) 1980-12-09

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

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PUAL Search report despatched

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AK Designated contracting states

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18D Application deemed to be withdrawn

Effective date: 19821217

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Inventor name: COUTSOURADIS, DIMITRI

Inventor name: PELERIN, JACQUES