EP1237662B1 - Procede d'application d'un revetement en plastique a l'aide d'un processus de pulverisation, dispositif associe et utilisation de la couche ainsi obtenue - Google Patents

Procede d'application d'un revetement en plastique a l'aide d'un processus de pulverisation, dispositif associe et utilisation de la couche ainsi obtenue Download PDF

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Publication number
EP1237662B1
EP1237662B1 EP00993329A EP00993329A EP1237662B1 EP 1237662 B1 EP1237662 B1 EP 1237662B1 EP 00993329 A EP00993329 A EP 00993329A EP 00993329 A EP00993329 A EP 00993329A EP 1237662 B1 EP1237662 B1 EP 1237662B1
Authority
EP
European Patent Office
Prior art keywords
layer
plastic
anyone
powder
spraying
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
Application number
EP00993329A
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German (de)
English (en)
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EP1237662A2 (fr
Inventor
Michael Dvorak
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.)
DACS DvorakAdvanced Coating Solutions
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DACS DvorakAdvanced Coating Solutions
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Application filed by DACS DvorakAdvanced Coating Solutions filed Critical DACS DvorakAdvanced Coating Solutions
Publication of EP1237662A2 publication Critical patent/EP1237662A2/fr
Application granted granted Critical
Publication of EP1237662B1 publication Critical patent/EP1237662B1/fr
Anticipated expiration legal-status Critical
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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
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/129—Flame spraying

Definitions

  • the invention relates to a method for plastic coating by means of an injection process.
  • the invention encompasses an apparatus for carrying out the method with a nozzle constriction area and downstream acceleration channel and the use of the layer.
  • Plastic coating means both the coating of plastics - for example, the plastic metallization - as well as with plastics, ie with materials whose essential components consist of such macromolecular organic compounds that are produced synthetically or by modification of natural products.
  • the powder is introduced into the flame from the inside and from the outside in a flame spraying burner.
  • this system allows plastic material to be sprayed on, all materials lose their required properties due to their long residence time and temperature.
  • EP-A-0 921 149 discloses the use of plastics for coating, for example, a cooking pot in which a composite of PPS and an Fe-Ni alloy has been applied by means of a high-speed flame spraying HVOF, wherein the composite powder is agglomerated by mechanical agglomeration HVOF a composite of PPS and an Fe-Ni alloy has been applied, wherein the composite powder has been prepared by mechanical agglomeration.
  • This coating is intended to produce a magnetic material with a given Curie temperature.
  • a high-temperature-resistant plastic is applied by means of thermal spraying at high jet velocity, wherein the plastic is introduced into the colder beam area to prevent the destruction of the plastic powder.
  • the inventor has set the goal to eliminate the identified disadvantages and a favorable process for coating plastic parts without preheating - or even of wood - to worship or for coating with plastic powders or the like. organic substances.
  • a device to be procured In addition, a device to be procured.
  • either a layer of metallic, non-metallic or oxide materials on a plastic element or a layer of plastic on a base material by means of a high-speed injection method with the addition of the powdery material by a gas-controlled - operated with excess pressure and negative pressure - Pulverfärderü applied, preferably by means of a high-speed flame spraying method or a high-speed cold spraying process.
  • a spray material in a particle size range between 0.1 and 150 ⁇ m, in particular 0.5 to 75 ⁇ m, but especially in a particle size range of 1 to 30 ⁇ m.
  • polymeric powdery plastics are adjusted by nanocrystalline additives to the properties of the base material; nanocrystalline powders are proposed as the wettable powder.
  • the layer is applied to a fiber reinforced material, such as a carbon or glass fiber reinforced material.
  • the layer according to the invention can be applied to a plastic, a high-temperature-resistant plastic, to polyurethane, high-performance thermoplastic and / or duroplastic, in particular to polyetheretherketone (PEEK), polyacryletherketone (PAEK), precursors thereof, polyphenylene sulphite (PPS), liquidcrystalline polymer (LCP), Entfunctional oligomers or on polyamides.
  • PEEK polyetheretherketone
  • PAEK polyacryletherketone
  • PPS polyphenylene sulphite
  • LCP liquidcrystalline polymer
  • Entfunctional oligomers or on polyamides.
  • the plastic is to be applied in the context of the invention as a base material or as a base layer on a metal or as a cover layer.
  • a device designed as a high-pressure, high-speed flame-spraying burner is provided with a nozzle constriction area and downstream acceleration channel and with a gas-controlled powder delivery unit which can advantageously be operated with overpressure and under reduced pressure.
  • the pulverulent spraying material is preferably supplied centrally to the high-speed flame near the nozzle constriction area and in front of the acceleration channel, wherein according to another feature of the invention at least one feed device for the pulverulent spraying material arranged radially to the high-speed flame is provided.
  • Another measure according to the invention is to be considered that the pressure range for the flame jet of the high-pressure Hochgeschwindigkcits flame spray burner with a high pressure of 0.50 to 5 MPa (5 to 50 bar) - preferably 1.0 to 2.5 MPa (10 to 25 bar) - operate is.
  • the powder conveyor should be pressure-controlled and pressure-coupled between the powder storage container and the powder outlet to the sprayer.
  • the layer according to the invention - as stated on plastic material applied - can be used for producing a sliding bearing or a sliding layer, also for an electrically conductive layer or a magnetic layer. It is also possible to produce an insulating layer, an anti-adhesion layer or a biologically active layer.
  • the mentioned plastic parts can be coated without preheating or applied in a corresponding manner plastic layers on base materials.
  • a pistol-like flame spray burner 10 after Fig. 1 contains a - near the rear wall 12 of a combustion chamber 14 opening - axial feed tube 18 for the spray or material to be processed. This is connected to an indicated at 20 powder delivery unit, in which a volume is sucked in with negative pressure and forwarded with overpressure.
  • the combustion chamber 14 which tapers in a region 16 of the axial length a in the spraying direction x, merges into a tubular acceleration passage 22 with an end mouth 24 for the high-speed flame F.
  • the flame spray burner 10 a of Fig. 2 is provided between the tapered portion 16 of the combustion chamber 14 and the acceleration channel 22 with a Einschnürzone 26, which is defined by a narrow passage section 28. This is the mouths of two radial feed tubes 19 downstream in the injection direction x.
  • base materials are suitable for the process described herein metallic and plastic materials, such as polyurethane, high temperature resistant plastics, high performance thermoplastics and / or thermosetting plastics.
  • metallic base materials intermediate layers are used to reduce the stresses to compensate for the differences in the coefficient of expansion or to reduce them, for example if a wear layer of hard materials - such as borides, carbides, nitrides, silicides and / or oxides on a fiber-reinforced material - with and should be sprayed without metal or plastic binder.
  • hard plastic tools or parts thereof are used in the manufacture of small series - or for changes to such tools - to reduce costs.
  • a high-pressure flame spraying process operating at high pressure can be used in view of the low temperature load on the base material.
  • a HD-HVOF high-pressure flame spraying
  • a spray powder here was a tungsten carbide / cobalt 88/12 with a particle size distribution of 1 to 20 microns.
  • Example 1 the execution as described in Example 1 with the difference that the transition layer for better adaptation to the base material or to adjust the expansion coefficients had a graded structure (PEEK aluminum oxide).
  • This embodiment also corresponded to that of Example 1, although the transition layer for better adaptation to the base material or for adjusting the expansion coefficients and the electrical conductivity of a spray material of the composition PEEK aluminum oxide copper.
  • Example 3 This corresponded to Example 3 with the difference of a galvanically or electrochemically applied wear layer.
  • the finished coating produced according to Example 4 was post-treated before use with a heat treatment in the temperature range of 150 to 350 ° C.
  • a wear protection layer with high dielectric strength and low tendency to adhere has been applied to improve durability and resistance to moisture.
  • the spraying plant was an HD HVOF facility with an underpressure and underpressure working powder delivery unit used.
  • the layer thickness should be 500 ⁇ m.
  • the spray powder used was a mixture of 70 to 98% by weight of polyetheretherketone (PEEK) and 2 to 30% by weight of nanocrystalline oxides having a particle size distribution of 1 to 20 ⁇ m.
  • PEEK polyetheretherketone
  • the values and service lives found were significantly higher than those without a coating.
  • Example 6 Corresponded to Example 6, wherein the coating had a graded structure.
  • the HD-HVOF process was used and a layer of 500 ⁇ m thickness with the following composition was applied: the powdered spray material consisted of a mixture of a polyurethane powder and a nanocrystalline one Copper powder in the ratio 90/10; the grain distribution was 1 to 75 ⁇ m.
  • This layer showed a much longer service life compared to the usual copper-containing paints and offered better ecological compatibility.
  • Carbon-fiber-reinforced implants for knee or hip joints can only be used to a limited extent to date, since the hydroxyapatite can not be sprayed onto this material. Therefore, with the HD-HVOF method, an intermediate layer compatible with this base material and the human body and then the biostable layer, for example hydroxylapatite, was sprayed on.
  • the intermediate layer with a layer thickness of 50 ⁇ m consisted of powdered PPS and Al oxide in a mixing ratio of 10 to 40 parts Al oxide, balance PPS.
  • a reactor vessel for the chemical industry should be provided with a corrosion-resistant and magnetic protective layer to control the reactions to be carried out therein.
  • the coating should be done with the HD-HVOF method and the applied layer has a layer thickness of 700 microns.
  • the powdery material used was a mixture of PEEK, Si oxide, Al oxide and nanocrystalline ferrite.
  • the composition was Si-oxide 5 to 20 wt .-%, Al oxide 10 to 20 wt .-% and balance PEEK. Due to the ferrite grain size, the Curie point of the coating was set at 280 ° C. The grain distribution was 1 to 40 microns.
  • the layer was re-sintered by induction.
  • a weatherproof protective layer of a layer thickness of 200 ⁇ m was to be applied on a wooden crag for a playground using the HD-HVOF process.
  • the protective layer thus prepared had excellent weather resistance and also showed a nice black color.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating By Spraying Or Casting (AREA)

Claims (13)

  1. Procédé d'application d'un revêtement en matière plastique au moyen d'une opération de pulvérisation, caractérisé
    en ce que l'on dépose une couche de matériau métallique, non métallique ou oxydé sur un élément en matière plastique ou sur un matériau de base, ou
    en ce que l'on dépose comme couche de la matière plastique, les matières plastiques polymères pulvérulentes étant réglées, par des additifs nanocristallins, de préférence sur les propriétés du matériau de base,
    dans lequel on effectue le dépôt respectif de à couche au moyen d'un procédé de pulvérisation sous haute pression, avec addition du matériau pulvérulent par une unité de transport de poudre commandé par du gaz, dans laquelle un volume du matériau pulvérulent est aspiré par une dépression et ensuite est acheminé par une surpression.
  2. Procédé suivant la revendication 1, caractérisé par un procédé de pulvérisation à la flamme à grande vitesse.
  3. Procédé suivant la revendication 1 ou 2, caractérisé par un procédé de pulvérisation à froid à grande vitesse.
  4. Procédé suivant l'une des revendications 1 à 3, caractérisé par un matériau de pulvérisation dans une plage granulométrique comprise entre 0,1 et 150 µm, notamment 0,5 à 75 µm.
  5. Procédé suivant la revendication 4, caractérisé par une plage granulométrique de 1 à 30µm.
  6. Procédé suivant l'une des revendications 1 à 5, caractérisé en ce que l'on utilise comme poudre de pulvérisation de la poudre nanocristalline.
  7. Procédé suivant l'une des revendications 1 à 6, caractérisé en ce que l'on dépose la couche sur un matériau renforcé par de la fibre.
  8. Procédé suivant la revendication 7, caractérisé par des fibres renforcées par des fibres de carbone ou des fibres de verre comme matériau.
  9. Procédé suivant l'une des revendications 1 à 6, caractérisé en ce que l'on dépose la couche sur une matière plastique, sur une matière plastique résistante à une température haute, sur du polyuréthane, sur une matière thermoplastique de grande performance et/ou sur une matière thermodurcissable.
  10. Procédé suivant la revendication 9, caractérisé en ce que l'on dépose la couche sur du polyétheréthercétone (PEEK), du polyacryléthercétone (PAEK), leurs précurseurs, du poly (sulfite de phénylène) (PPS), un polymère de cristal liquide (LCP), des oligomères défonctionnalisés ou des polyamides.
  11. Procédé suivant l'une des revendication 1 à 10, caractérisé en ce que l'on dépose la matière plastique comme matériau de base ou comme couche de base ou comme couche de finition.
  12. Procédé suivant l'une des revendications 9 à 11, caractérisé par une couche composée d'un mélange de matériau, qui est constituée de manière graduée.
  13. Utilisation d'un procédé de pulvérisation à grande vitesse suivant l'une des revendications 1 à 12 sur une couche déposée en matériau plastique pour la production d'une couche active biologiquement.
EP00993329A 1999-12-09 2000-12-11 Procede d'application d'un revetement en plastique a l'aide d'un processus de pulverisation, dispositif associe et utilisation de la couche ainsi obtenue Expired - Lifetime EP1237662B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19959515A DE19959515A1 (de) 1999-12-09 1999-12-09 Verfahren zur Kunststoffbeschichtung mittels eines Spritzvorganges, eine Vorrichtung dazu sowie die Verwendung der Schicht
DE19959515 1999-12-09
PCT/EP2000/012480 WO2001042525A2 (fr) 1999-12-09 2000-12-11 Procede d'application d'un revetement en plastique a l'aide d'un processus de pulverisation, dispositif associe et utilisation de la couche ainsi obtenue

Publications (2)

Publication Number Publication Date
EP1237662A2 EP1237662A2 (fr) 2002-09-11
EP1237662B1 true EP1237662B1 (fr) 2009-03-18

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EP00993329A Expired - Lifetime EP1237662B1 (fr) 1999-12-09 2000-12-11 Procede d'application d'un revetement en plastique a l'aide d'un processus de pulverisation, dispositif associe et utilisation de la couche ainsi obtenue

Country Status (5)

Country Link
EP (1) EP1237662B1 (fr)
AT (1) ATE425815T1 (fr)
AU (1) AU2841201A (fr)
DE (2) DE19959515A1 (fr)
WO (1) WO2001042525A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015002967A1 (de) * 2015-03-07 2016-10-13 Willi Viktor LAUER 3D-Druckwerkzeug und 3D-Druck von Bündeln
US9610605B2 (en) 2010-05-31 2017-04-04 Siemens Aktiengesellschaft Method for cold gas spraying of a layer having a metal microstructure phase and a microstructure phase made of plastic, component having such a layer, and use of said component

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DE10137713B4 (de) * 2001-08-06 2006-06-29 Eads Deutschland Gmbh Verfahren zur Herstellung einer Klebeverbindung
US20030039856A1 (en) 2001-08-15 2003-02-27 Gillispie Bryan A. Product and method of brazing using kinetic sprayed coatings
US6685988B2 (en) 2001-10-09 2004-02-03 Delphi Technologies, Inc. Kinetic sprayed electrical contacts on conductive substrates
GB0130782D0 (en) * 2001-12-21 2002-02-06 Rosti Wembley Ltd Applying metallic coatings to plastics materials
US6896933B2 (en) 2002-04-05 2005-05-24 Delphi Technologies, Inc. Method of maintaining a non-obstructed interior opening in kinetic spray nozzles
US6811812B2 (en) 2002-04-05 2004-11-02 Delphi Technologies, Inc. Low pressure powder injection method and system for a kinetic spray process
US7476422B2 (en) 2002-05-23 2009-01-13 Delphi Technologies, Inc. Copper circuit formed by kinetic spray
US7108893B2 (en) * 2002-09-23 2006-09-19 Delphi Technologies, Inc. Spray system with combined kinetic spray and thermal spray ability
US6924249B2 (en) 2002-10-02 2005-08-02 Delphi Technologies, Inc. Direct application of catalysts to substrates via a thermal spray process for treatment of the atmosphere
US6872427B2 (en) 2003-02-07 2005-03-29 Delphi Technologies, Inc. Method for producing electrical contacts using selective melting and a low pressure kinetic spray process
US6871553B2 (en) 2003-03-28 2005-03-29 Delphi Technologies, Inc. Integrating fluxgate for magnetostrictive torque sensors
US7351450B2 (en) 2003-10-02 2008-04-01 Delphi Technologies, Inc. Correcting defective kinetically sprayed surfaces
US7335341B2 (en) 2003-10-30 2008-02-26 Delphi Technologies, Inc. Method for securing ceramic structures and forming electrical connections on the same
US7024946B2 (en) 2004-01-23 2006-04-11 Delphi Technologies, Inc. Assembly for measuring movement of and a torque applied to a shaft
US7475831B2 (en) 2004-01-23 2009-01-13 Delphi Technologies, Inc. Modified high efficiency kinetic spray nozzle
US7674076B2 (en) 2006-07-14 2010-03-09 F. W. Gartner Thermal Spraying, Ltd. Feeder apparatus for controlled supply of feedstock
DE102006057638B4 (de) * 2006-12-05 2008-11-20 Eads Deutschland Gmbh Verfahren zum Herstellen eines Formwerkzeugs
DE102006057640A1 (de) * 2006-12-05 2008-06-12 Eads Deutschland Gmbh Verfahren zum Herstellen eines Formwerkzeugs mit einer Verschleißschutzschicht
CN113529005A (zh) * 2021-07-05 2021-10-22 泰尔(安徽)工业科技服务有限公司 一种连铸辊的喷涂制造方法
CN114472002B (zh) * 2021-09-22 2023-04-18 中大体育产业集团股份有限公司 一种包胶哑铃的增材粉喷装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9610605B2 (en) 2010-05-31 2017-04-04 Siemens Aktiengesellschaft Method for cold gas spraying of a layer having a metal microstructure phase and a microstructure phase made of plastic, component having such a layer, and use of said component
DE102015002967A1 (de) * 2015-03-07 2016-10-13 Willi Viktor LAUER 3D-Druckwerkzeug und 3D-Druck von Bündeln

Also Published As

Publication number Publication date
EP1237662A2 (fr) 2002-09-11
DE19959515A1 (de) 2001-06-13
AU2841201A (en) 2001-06-18
ATE425815T1 (de) 2009-04-15
WO2001042525A2 (fr) 2001-06-14
WO2001042525A3 (fr) 2002-02-14
DE50015599D1 (de) 2009-04-30

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