EP1683892B1 - Procédé de revetement - Google Patents

Procédé de revetement Download PDF

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Publication number
EP1683892B1
EP1683892B1 EP05028432.2A EP05028432A EP1683892B1 EP 1683892 B1 EP1683892 B1 EP 1683892B1 EP 05028432 A EP05028432 A EP 05028432A EP 1683892 B1 EP1683892 B1 EP 1683892B1
Authority
EP
European Patent Office
Prior art keywords
profile component
metal powder
period
coating
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.)
Not-in-force
Application number
EP05028432.2A
Other languages
German (de)
English (en)
Other versions
EP1683892A1 (fr
Inventor
Elisabeth Danger
Martin Pohl
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.)
THERMISSION AG
Original Assignee
Thermission AG
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=35584766&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1683892(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thermission AG filed Critical Thermission AG
Publication of EP1683892A1 publication Critical patent/EP1683892A1/fr
Application granted granted Critical
Publication of EP1683892B1 publication Critical patent/EP1683892B1/fr
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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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • 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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00

Definitions

  • the invention relates to a method for applying a firmly adhering metallic coating on a profile component made of sheet steel.
  • the coating of profile components made of sheet steel is carried out with the aim of improving their properties. As a result, in particular the susceptibility to corrosion, but also the wear in the coated profile components can be reduced.
  • the present invention relates in particular to the corrosion protection of profile components made of sheet steel and in particular to the coating of the profile components made of sheet steel with zinc.
  • a method and apparatus for electroplating an iron substrate is known.
  • the iron substrate is in ribbon form and is electrostatically charged before being drawn through a liquid bath of powdered plating material.
  • the galvanizing material adheres to the iron substrate and in a subsequent heating station above the melting temperature heated. In this way, a permanent coating is formed on the iron substrate. Finally, the coated iron substrate is cooled again.
  • the invention has the object of demonstrating a more rational and practical for the application in particular in the automotive industry improved method for applying a solid metallic coating on a profile component made of sheet steel.
  • a profile component made of sheet steel it is nebulized metallically pure in a treatment space with a metal powder containing zinc or zinc oxide. Electrostatically, metal powder is deposited over the entire surface of the profile component.
  • the profile component is then subjected to a heat treatment over a period of 0.5 h to 4 h in which solid, cohesive, up to 5 ⁇ m to 40 ⁇ m thick iron-zinc alloy layers are formed by a diffusion process between the steel sheet and the metal powder.
  • a coating of the iron of the steel sheet and the metal powder known from sherardization forms on the surface.
  • the thickness of the coating depends on the charging potential in addition to the temperature and the treatment time.
  • the heat treatment at a temperature between 280 ° C and 350 ° C, in particular in a temperature range of 300 ° C to 320 ° C.
  • a metal powder with the main constituent zinc or zinc oxide is used, which optionally contains additives for improving the chemical and physical properties of the coating.
  • iron-zinc alloy layers thus arise as a result of the diffusion processes between the base metal and the coating metal.
  • the coatings are uniform and ductile.
  • the profile components are subjected to a surface treatment.
  • a cleaning of the profile components takes place, so that the profile components are metallic blank. This can be done for example by a pickling process, but in particular is intended to sand blasting.
  • the order of the metal powder on the profile component is carried out electrically or electrostatically.
  • the metal powder is preferably electrically charged in the treatment room, whereas the profile component is suspended electrically grounded in the treatment room. Due to the voltage difference, the metal powder is uniformly distributed and over the entire surface down on the surface of the profile component.
  • the heat treatment is divided into a heating phase until reaching the treatment temperature and a holding phase in which the treatment temperature is maintained for a certain period of time.
  • the heating phase extends over a period of 0.5 h to 2 h.
  • the heat treatment is completed after the heating phase. Basically, therefore be assumed by a holding phase, which extends over a period of 0 h to 2 h
  • the coating of the profile components takes place in a particularly efficient manner in a continuous process.
  • it is especially thought to provide thermoformed profile components after the thermoforming process in a directly subsequent plant with powdery zinc and to carry out the diffusion process in a continuous furnace.
  • logistical and technical processes are simplified or saved, which opens up a large cost savings potential.
  • a surface treatment for example by sandblasting, be made prior to the coating of the components.
  • the aim is to evenly cool the coated profile components.
  • the cooling process should be less than one hour.
  • other components may be present in the metal powder in addition to zinc or zinc oxide, thereby influencing the chemical behavior, in particular with regard to the corrosion resistance, and the physical behavior, in particular with regard to the adhesive strength of the coating how the geometry of the coating and the layer thickness distribution can be taken.
  • the invention provides a rational simple method for producing a high-quality coating, in particular a zinc layer on profile components made of sheet steel. It can be produced a uniform coating. The coating takes place dry with good utilization of the coating material. Process-related losses of metal powder are minimized. The coatings produced on the profile components are deformable, which is also advantageous.

Claims (8)

  1. Procédé pour appliquer un revêtement métallique solide sur un composant profilé en tôle d'acier, dans lequel le composant profilé est placé dans un brouillard de poudre métallique contenant du zinc ou de l'oxyde de zinc dans une enceinte de traitement et la poudre métallique est déposée sur toute la surface du composant profilé par voie électrostatique, suite à quoi on procède à un traitement thermique du composant profilé à une température entre 280°C et 350°C sur une période de 0,5 h à 4 h, pendant lequel se forment des couches d'alliages fer-zinc allant de 5 µm à 40 µm d'épaisseur suite à un processus de diffusion entre la tôle d'acier et la poudre métallique, suite à quoi on procède à un refroidissement du composant profilé.
  2. Procédé selon la revendication 1, dans lequel la poudre métallique est chargée électriquement dans l'enceinte de traitement.
  3. Procédé selon la revendication 1, dans lequel le composant profilé est chargé électriquement dans l'enceinte de traitement.
  4. Procédé selon l'une au moins des revendications 1 à 3, dans lequel le traitement thermique a lieu à une température entre 300°C et 320°C.
  5. Procédé selon l'une au moins des revendications 1 à 4, dans lequel le traitement thermique comprend une phase d'échauffement et une phase de maintien, la phase d'échauffement s'étendant sur une période de 0,5 h à 2 h, et la phase de maintien sur une période de 0h à 2 h.
  6. Procédé selon l'une au moins des revendications 1 à 5, dans lequel le refroidissement du composant profilé a lieu en une période inférieure ou égale à 1 h.
  7. Procédé selon l'une au moins des revendications 1 à 6, dans lequel le composant profilé est soumis à un traitement de surface avant l'entrée dans l'enceinte de traitement.
  8. Procédé selon l'une au moins des revendications 1 à 7, dans lequel le revêtement du composant profilé a lieu dans un processus continu.
EP05028432.2A 2005-01-19 2005-12-23 Procédé de revetement Not-in-force EP1683892B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005002706A DE102005002706B4 (de) 2005-01-19 2005-01-19 Beschichtungsverfahren

Publications (2)

Publication Number Publication Date
EP1683892A1 EP1683892A1 (fr) 2006-07-26
EP1683892B1 true EP1683892B1 (fr) 2018-10-31

Family

ID=35584766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05028432.2A Not-in-force EP1683892B1 (fr) 2005-01-19 2005-12-23 Procédé de revetement

Country Status (3)

Country Link
US (1) US20060159858A1 (fr)
EP (1) EP1683892B1 (fr)
DE (1) DE102005002706B4 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0709041B1 (pt) * 2006-03-20 2018-06-05 Nippon Steel & Sumitomo Metal Corporation Chapa de aço galvanizado por imersão a quente com alta resistência à corrosão
DE102010004081C5 (de) 2010-01-06 2016-11-03 Benteler Automobiltechnik Gmbh Verfahren zum Warmformen und Härten einer Platine
DE102012110649C5 (de) 2012-11-07 2018-03-01 Benteler Automobiltechnik Gmbh Warmformlinie sowie Verfahren zur Herstellung eines warmumgeformten und pressgehärteten Kraftfahrzeugbauteils
NZ630641A (en) 2012-12-12 2015-10-30 Kwik Coat Aust Pty Ltd Alloy coated workpieces
US10203232B2 (en) * 2016-09-27 2019-02-12 Cameron International Corporation Flow meter with rotor assembly
CH713079A1 (de) 2016-10-26 2018-04-30 Thermission Ag Verfahren für die Aufbringung einer Schichtstruktur durch Thermodiffusion auf eine metallische oder intermetallische Oberfläche.
DE102018114838A1 (de) 2018-06-20 2019-12-24 Benteler Automobiltechnik Gmbh Kraftfahrzeugbauteil aus Vergütungsstahl
DE102018114840A1 (de) 2018-06-20 2019-12-24 Benteler Automobiltechnik Gmbh Verfahren zur Herstellung einer Beschichtung auf Profilbauteilen aus Stahlblech

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1796195A1 (de) * 1968-09-18 1972-03-09 Lamben Developments Ltd Verfahren zum Galvanisieren von Eisen oder Stahl
US3660136A (en) * 1970-11-23 1972-05-02 Gen Electric Method of coating slotted articles
US5059446A (en) * 1990-02-14 1991-10-22 Armco Inc. Method of producing plastic coated metal strip
US5384165A (en) * 1993-06-11 1995-01-24 Sms Engineering Inc. Method and apparatus to galvanize a ferrous substrate
JPH07171485A (ja) * 1993-12-21 1995-07-11 Nippon Paint Co Ltd 静電粉体塗装方法
WO1998018979A1 (fr) * 1996-10-25 1998-05-07 Pohang Iron & Steel Co., Ltd. Appareil permettant d'enrober une tole d'acier de zinc et procede s'y rapportant
US6276400B1 (en) * 1999-06-08 2001-08-21 Itt Manufacturing Enterprises, Inc. Corrosion resistant powder coated metal tube and process for making the same
JP2001146567A (ja) * 1999-09-10 2001-05-29 Lock Paint Kk ジンクリッチ粉体塗料組成物、その塗装方法及び塗装体

Also Published As

Publication number Publication date
DE102005002706B4 (de) 2009-03-05
EP1683892A1 (fr) 2006-07-26
DE102005002706A1 (de) 2006-07-20
US20060159858A1 (en) 2006-07-20

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