EP0911425B1 - Procédé pour l'enduction de surfaces - Google Patents

Procédé pour l'enduction de surfaces Download PDF

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Publication number
EP0911425B1
EP0911425B1 EP98120104A EP98120104A EP0911425B1 EP 0911425 B1 EP0911425 B1 EP 0911425B1 EP 98120104 A EP98120104 A EP 98120104A EP 98120104 A EP98120104 A EP 98120104A EP 0911425 B1 EP0911425 B1 EP 0911425B1
Authority
EP
European Patent Office
Prior art keywords
gas
spraying
process according
powder particles
gas jet
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.)
Revoked
Application number
EP98120104A
Other languages
German (de)
English (en)
Other versions
EP0911425A1 (fr
Inventor
Peter Dipl.-Ing. Heinrich
Heinrich Professor Dr.-Ing. Kreye
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.)
Linde GmbH
Original Assignee
Linde GmbH
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=7846743&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0911425(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP0911425A1 publication Critical patent/EP0911425A1/fr
Application granted granted Critical
Publication of EP0911425B1 publication Critical patent/EP0911425B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles

Definitions

  • the invention relates to a method for coating substrate materials thermal spraying, a powdered filler material using a gas is passed onto the surface of the substrate material to be coated without the powder particles of the filler material are melted in the gas jet.
  • Thermal spraying for coating is known as autogenous as process variants Flame spraying or high speed flame spraying, arc spraying, plasma spraying, detonation spraying and laser spraying.
  • Thermal spray processes are essentially characterized in that they enable evenly applied coatings.
  • Coatings can be applied by varying the spray materials can be adapted to different requirements.
  • the spray materials can be processed in the form of wires, rods or powder. With thermal In addition, thermal post-treatment can be provided for spraying.
  • Air In the cold gas process according to the prior art (EP 0 484 533 B1) is used as the gas Air, helium or a mixture of air and helium are used.
  • Air the powder particles reach a speed of 300 to 600 m / s when in use from helium to a speed of 1000 to 1200 m / s and when using a Air / helium mixture to a speed in the range of 300 to 1200 m / s accelerated.
  • the particle speed can also be in the range between 300 and 1200 m / s can be controlled by heating the gas from 30 to 400 ° C.
  • the gas is used at a pressure of about 5 to about 20 bar. It will be a powder with a particle size of 1 to 50 microns used.
  • the cold gas process has compared to conventional thermal processes Spraying a number of advantages.
  • the thermal action and force action The surface of the substrate material is reduced, causing unwanted changes the material properties of the substrate material prevented or at least can be significantly reduced. Likewise, changes in the Structure of the substrate material can be prevented.
  • EP 911 424 A1 with the same seniority describes a method of manufacture of composite bodies by means of thermal spraying.
  • EP 911 426 A1 with the same seniority describes a method of manufacture of self-supporting molded parts using thermal spraying.
  • WO 95 07 768 A describes a special coating process by formation a mixture of particles and gas flow as suspension and acceleration the resulting two-phase flow to supersonic speed coating substrate for producing a coating while changing the physico-chemical properties of the coating material.
  • the mixture from particles and gas is a pseudo-liquid particle-gas suspension.
  • the process is based on a change in the physico-chemical properties of the coating material.
  • the carrier gas is compressed Air used.
  • both inert gases used because of the purity of the layer as well as gas mixtures can be.
  • CH 658 045 A describes in connection with the manufacture of glass molds for hollow glass production machines after blasting treatment with corundum Creation of a protective layer from an alloy by plasma spraying or Flame spraying without melting. This process enables in particular Contrary to cold spraying and hot spraying with melting that Manufacture of glass molds that are used and damaged after Glass production can be repaired by subsequent thermal spraying.
  • the object of the present invention is the method mentioned at the outset further training, and to improve the quality of the coatings and / or to increase the applicability and performance of the cold gas spray process.
  • the powder Gas carrying filler material is a nitrogen-containing, oxygen-free gas or Contains carbon dioxide or mixtures thereof.
  • Gas containing nitrogen in the context of the present invention is nitrogen or to understand a gas mixture containing nitrogen.
  • gases are called gases which are free of are elemental oxygen, this indication referring to technical purities related, so contaminations of elemental oxygen are allowed.
  • the statement that the powder particles of the filler material did not melt in the gas jet in the context of the present invention should also mean that the particles in the gas jet are essentially not melted. This can be done ensure that the temperature of the gas jet is below the Melting point of the powder particles of the filler material. But even at temperatures of the gas jet from 100 K to 200 K above the melting point of the Powder particles of the filler material can due to the extremely short residence time Particles in the gas jet melt or melt in the range of milliseconds the powder particles can be prevented.
  • the importance of higher gas temperatures or the advantage of heating the gas is that in hotter gases the speed of sound is higher and therefore also the particle speed becomes comparatively larger.
  • the Coatings produced according to the invention adhere very well to a very wide variety Substrate materials, for example on metal, metal alloys, ceramics, glass, Plastics and composites.
  • the manufactured with the inventive method Coatings are of high quality and have an extremely low level Porosity and have extremely smooth spray surfaces, so that usually a rework is unnecessary.
  • the gases used according to the invention have a sufficient density and speed of sound to achieve the required high speeds to be able to guarantee the powder particles.
  • the gas can contain inert and / or reactive gases.
  • the method according to the invention enables with these gases the production of very dense and particularly uniform coatings, which are also characterized by their hardness and strength.
  • the coatings produced according to the invention are extremely small Oxide levels. They have no or at least no pronounced texture, i.e. it there is no preferred orientation of the individual grains or crystals.
  • the substrate will furthermore not heated by a flame or a plasma, so that none or only extremely small changes to the substrate and no distortion of workpieces due to thermal stress.
  • Helium can advantageously be added to the gas.
  • the proportion of helium in the total gas can be up to 90 vol .-%.
  • a helium content of 10 to is preferred 50 vol .-% observed in the gas mixture.
  • the gas jet can be heated to a temperature in the range between 30 and 800 ° C are, all known powdery spray materials are used can.
  • the invention is particularly suitable for wettable powders made of metals, metal alloys, Hard materials, ceramics and / or plastics.
  • the temperature of the gas jet selected between 300 and 500 ° C. These gas temperatures are particularly suitable for the use of reactive gases or reactive Gas constituents. As reactive gases or gas components are in particular to mention nitrogenous gases.
  • a gas jet with a pressure of 5 to 50 bar used.
  • gas pressures in the range from 21 to 50 bar.
  • Excellent spray results were achieved, for example, with gas pressures of around 35 achieved in cash.
  • the high pressure gas supply can, for example, by the in the German patent application DE 197 16 414.5 methods described there or described gas supply system can be ensured.
  • the powder particles can run at a speed accelerated from 300 to 1600 m / s. Suitable in the process according to the invention speeds of the powder particles between 1000 and 1600 m / s, particularly preferably speeds of the powder particles between 1250 and 1600 m / s, because in this case the energy transfer in the form of kinetic Energy is particularly high.
  • the powders used in the process according to the invention preferably have Particle sizes from 1 to 100 ⁇ m.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Claims (7)

  1. Procédé pour l'enduction de matériaux de substrats par pulvérisation thermique, dans lequel un matériau additif sous forme pulvérulente est guidé au moyen d'un gaz sur la surface à revêtir du matériau de substrat, sans que les particules de poudre du matériau additif soient fondues dans le jet de gaz,
    caractérisé en ce que
    le gaz contient un gaz exempt d'oxygène contenant de l'azote, du dioxyde de carbone ou un mélange de ceux-ci.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on ajoute de l'hélium au gaz.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la température du jet de gaz est dans la plage comprise entre 30 et 800°C.
  4. Procédé selon la revendication 3, caractérisé en ce que la température du jet de gaz est dans la plage comprise entre 300 et 500°C.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le jet de gaz est à une pression de 5 à 50 bars.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les particules de poudre sont accélérées à une vitesse comprise entre 300 et 1600 m/s.
  7. Procédé selon la revendication 6, caractérisé en ce que les particules de poudre sont accélérées à une vitesse comprise entre 1000 et 1600 m/s.
EP98120104A 1997-10-27 1998-10-23 Procédé pour l'enduction de surfaces Revoked EP0911425B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19747386A DE19747386A1 (de) 1997-10-27 1997-10-27 Verfahren zum thermischen Beschichten von Substratwerkstoffen
DE19747386 1997-10-27

Publications (2)

Publication Number Publication Date
EP0911425A1 EP0911425A1 (fr) 1999-04-28
EP0911425B1 true EP0911425B1 (fr) 2003-01-22

Family

ID=7846743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98120104A Revoked EP0911425B1 (fr) 1997-10-27 1998-10-23 Procédé pour l'enduction de surfaces

Country Status (2)

Country Link
EP (1) EP0911425B1 (fr)
DE (2) DE19747386A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112004001910B4 (de) * 2003-10-08 2011-07-21 Miba Gleitlager Gmbh Gleitschicht
DE102011052119A1 (de) 2011-07-25 2013-01-31 Eckart Gmbh Verfahren zur Substratbeschichtung und Verwendung additivversehener, pulverförmiger Beschichtungsmaterialien in derartigen Verfahren
DE102011052121A1 (de) 2011-07-25 2013-01-31 Eckart Gmbh Beschichtungsverfahren nutzend spezielle pulverförmige Beschichtungsmaterialien und Verwendung derartiger Beschichtungsmaterialien
DE102011052120A1 (de) 2011-07-25 2013-01-31 Eckart Gmbh Verwendung speziell belegter, pulverförmiger Beschichtungsmaterialien und Beschichtungsverfahren unter Einsatz derartiger Beschichtungsmaterialien
WO2013014213A2 (fr) 2011-07-25 2013-01-31 Eckart Gmbh Procédé de revêtement de substrat et utilisation de matériaux de revêtement pulvérulents avec additifs dans de tels procédés
EP2959992A1 (fr) 2014-06-26 2015-12-30 Eckart GmbH Procédé de fabrication d'un aérosol contenant des particules

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DE19747384A1 (de) * 1997-10-27 1999-04-29 Linde Ag Herstellung von Verbundkörpern
DE19747385A1 (de) * 1997-10-27 1999-04-29 Linde Ag Herstellung von Formteilen
JP3468739B2 (ja) * 1999-12-27 2003-11-17 新東ブレーター株式会社 高耐食性かつ対カーボン低接触抵抗性金属の燃料電池用セパレーターへの付着方法
DE10203884A1 (de) * 2002-01-31 2003-08-14 Flumesys Gmbh Fluidmes Und Sys Vorrichtung und Verfahren zum thermischen Spritzen
DE10224780A1 (de) * 2002-06-04 2003-12-18 Linde Ag Verfahren und Vorrichtung zum Kaltgasspritzen
DE10309018B3 (de) * 2003-03-01 2004-09-30 Newspray Gmbh Verfahren zum Herstellen eines Kochgeschirrs für einen Induktionsherd
EP1794350A1 (fr) 2004-09-25 2007-06-13 ABB Technology AG Procede de production d'un revetement resistant a l'usure et blindage correspondant pour interrupteurs a vide
DE102005043484B4 (de) 2005-09-13 2007-09-20 Abb Technology Ag Vakuumschaltkammer
DE102006008027B3 (de) * 2006-02-16 2007-09-06 Siemens Ag Bauteil mit einer nanoskalige Strukturelemente aufweisenden Schicht und Verfahren zur Herstellung dieser Schicht
DE102006047101B4 (de) 2006-09-28 2010-04-01 Siemens Ag Verfahren zum Einspeisen von Partikeln eines Schichtmaterials in einen Kaltgasspritzvorgang
DE102007017753A1 (de) * 2007-04-16 2008-10-23 Innovaris Gmbh & Co. Kg Herstellung großer Bauteile durch kinetisches Kaltgaskompaktieren von Werkstoffpartikeln
DE102008006495A1 (de) 2008-01-29 2009-07-30 Behr-Hella Thermocontrol Gmbh Schaltungsträger, insbesondere Leiterkarte für elektrische Schaltungen
DE102008009106B4 (de) 2008-02-14 2010-04-08 Behr-Hella Thermocontrol Gmbh Leiterkarte für elektrische Schaltungen
DE102010022597A1 (de) * 2010-05-31 2011-12-01 Siemens Aktiengesellschaft Verfahren zum Herstellen einer Schicht mittels Kaltgasspritzen und Verwendung einer solchen Schicht
CN103703865B (zh) 2011-08-09 2016-09-14 法国圣戈班玻璃厂 电接触复合材料，制造电接触复合材料的方法
DE102011084724A1 (de) * 2011-10-18 2013-04-18 Robert Bosch Gmbh Verfahren zur Herstellung einer magnetischen Trennung für ein Magnetventil
FR2983874B1 (fr) 2011-12-12 2014-02-21 Air Liquide Procede de revetement de surface par projection de particules au moyen d'un fluide vecteur cryogenique
DE102012212682A1 (de) * 2012-07-19 2014-01-23 Siemens Aktiengesellschaft Verfahren zum Kaltgasspritzen mit einem Trägergas
DE102012023210A1 (de) 2012-11-28 2014-05-28 Wieland-Werke Ag Kupferband zur Herstellung von Leiterplatten
DE102012023212B3 (de) 2012-11-28 2014-01-30 Wieland-Werke Ag Elektrisch leitendes Bauteil mit verbesserter Haftung und Verfahren zu seiner Herstellung, sowie zur Herstellung eines Werkstoffverbunds
DE102015102908A1 (de) * 2015-03-02 2016-09-08 Schuler Pressen Gmbh Verfahren zum Fertigen eines Formteils, Formteil, Werkzeug und Presse mit einem Werkzeug
DE102020127874A1 (de) 2019-11-08 2021-05-12 Additive Space Gmbh Verfahren zur Herstellung eines Behälters
EP4340540A1 (fr) 2022-09-13 2024-03-20 Saint-Gobain Glass France Procédé de fabrication d'une vitre de véhicule dotée d'une couche de pulvérisation électroconductrice

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EP0911426A1 (fr) * 1997-10-27 1999-04-28 Linde Aktiengesellschaft Production de pièces moulées

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EP0911424A1 (fr) * 1997-10-27 1999-04-28 Linde Aktiengesellschaft Fabrication de matériaux composites
EP0911426A1 (fr) * 1997-10-27 1999-04-28 Linde Aktiengesellschaft Production de pièces moulées

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112004001910B4 (de) * 2003-10-08 2011-07-21 Miba Gleitlager Gmbh Gleitschicht
DE102011052119A1 (de) 2011-07-25 2013-01-31 Eckart Gmbh Verfahren zur Substratbeschichtung und Verwendung additivversehener, pulverförmiger Beschichtungsmaterialien in derartigen Verfahren
DE102011052121A1 (de) 2011-07-25 2013-01-31 Eckart Gmbh Beschichtungsverfahren nutzend spezielle pulverförmige Beschichtungsmaterialien und Verwendung derartiger Beschichtungsmaterialien
DE102011052120A1 (de) 2011-07-25 2013-01-31 Eckart Gmbh Verwendung speziell belegter, pulverförmiger Beschichtungsmaterialien und Beschichtungsverfahren unter Einsatz derartiger Beschichtungsmaterialien
WO2013014213A2 (fr) 2011-07-25 2013-01-31 Eckart Gmbh Procédé de revêtement de substrat et utilisation de matériaux de revêtement pulvérulents avec additifs dans de tels procédés
WO2013014211A2 (fr) 2011-07-25 2013-01-31 Eckart Gmbh Utilisation de matériaux de revêtement pulvérulents à enrobage spécial et procédés de revêtement mettant en oeuvre de tels matériaux de revêtement
WO2013014214A2 (fr) 2011-07-25 2013-01-31 Eckart Gmbh Procédé de revêtement mettant en oeuvre des matériaux de revêtement pulvérulents spéciaux et utilisation de tels matériaux de revêtement
US9580787B2 (en) 2011-07-25 2017-02-28 Eckart Gmbh Coating method using special powdered coating materials and use of such coating materials
EP2959992A1 (fr) 2014-06-26 2015-12-30 Eckart GmbH Procédé de fabrication d'un aérosol contenant des particules

Also Published As

Publication number Publication date
EP0911425A1 (fr) 1999-04-28
DE19747386A1 (de) 1999-04-29
DE59806988D1 (de) 2003-02-27

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