EP0990711A1 - Traitement de surfaces avant leur revêtement par projection thermique - Google Patents

Traitement de surfaces avant leur revêtement par projection thermique Download PDF

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Publication number
EP0990711A1
EP0990711A1 EP99117877A EP99117877A EP0990711A1 EP 0990711 A1 EP0990711 A1 EP 0990711A1 EP 99117877 A EP99117877 A EP 99117877A EP 99117877 A EP99117877 A EP 99117877A EP 0990711 A1 EP0990711 A1 EP 0990711A1
Authority
EP
European Patent Office
Prior art keywords
blasting
substrate surface
carbon dioxide
solid state
spray layer
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.)
Granted
Application number
EP99117877A
Other languages
German (de)
English (en)
Other versions
EP0990711B1 (fr
Inventor
Peter Dipl.-Ing. Heinrich
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
Linde Gas 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
Application filed by Linde GmbH, Linde Gas AG filed Critical Linde GmbH
Publication of EP0990711A1 publication Critical patent/EP0990711A1/fr
Application granted granted Critical
Publication of EP0990711B1 publication Critical patent/EP0990711B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • 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 processing a surface of a substrate in connection with the coating of the substrate surface with a spray layer by means of a thermal spray process, the substrate surface at a pretreatment before coating the substrate surface with the spray layer is roughened, and a device for processing a surface of a substrate in connection with the coating of the substrate surface a spray layer by means of a thermal spraying process comprising means for Pretreatment of the substrate surface by roughening before coating the Substrate surface with the spray layer, the means for pretreatment Blasting machine with accelerators to accelerate the blasting media on the Substrate surface included.
  • Thermal spraying includes processes in which spray additives within or melted, melted or melted outside of spray equipment and prepared Surfaces are hurled. The surfaces are not melted.
  • Thermal spraying for coating surfaces is known as a process variant autogenous flame spraying or high speed flame spraying, arc spraying, plasma spraying, detonation spraying and laser spraying.
  • thermal spraying is, for example, the European standard Can be found in EN 657.
  • 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 as powder. With thermal In addition, thermal post-treatment can be provided for spraying.
  • the above-mentioned preparation of the surface to be coated on the Substrate prior to thermal spraying involves roughening the substrate surface.
  • this roughening is done by blasting before thermal Spraying with blasting media accomplished.
  • blasting agents are usually used Corundum or blasted gravel used.
  • Roughening can also be achieved by rough turning or rough grinding. However, a relatively high error rate occurs, which is why the rough turning or rough grinding is only used in borderline cases.
  • the invention is therefore based on the object of a method and a device of the type mentioned at the outset, which is a particularly favorable pretreatment of the substrate surface.
  • the ones listed above should be included Disadvantages are avoided or reduced as far as possible.
  • the abrasive should be disposed of be simplified and also versatile sensitive and critical substrates.
  • This object is achieved for the method in that the pretreatment a blasting of the substrate surface to be coated by means of a Includes abrasive which contains one or more fluids hardened by cold contains a solid physical state.
  • the Device means for blasting a blasting agent onto the substrate surface to be coated which contains one or more cold solidified fluids in contains a solid physical state.
  • the fluids, which are hardened by cold, can operate under normal conditions are in gaseous or liquid state.
  • the blasting media can, for example, from solidified carbon dioxide (dry ice) or consist of water ice.
  • process parameters such as The speed and size of the blasting media can achieve the desired abrasiveness and be set.
  • the choice of Parameters depending on the material used for the abrasive based on its general Expertise possibly also in connection with the implementation of appropriate obvious attempts.
  • the material of the Substrates influence the choice of parameters. It should be noted that the roughness for high-energy spraying processes such as high-speed flame spraying, plasma spraying or cold gas spraying does not have to be as high as in the low-energy spraying process.
  • the abrasive contains carbon dioxide in a solid state. Due to its physical properties, solidified carbon dioxide in particular offers significant advantages when used as a blasting agent for pretreating surfaces to be coated: carbon dioxide in a solid state (dry ice) has a temperature of around -78 ° C. When heated, carbon dioxide sublimes. When carbon dioxide is sublimed, an explosive increase in volume occurs by a factor of around 600, which effectively supports the treatment. Processing with carbon dioxide in a solid state is residue-free, since the sublimed gaseous carbon dioxide can escape without any problems. Blasting agent preparation or blasting agent disposal is therefore not necessary. Solid carbon dioxide is advantageously used in the form of grated CO 2 flakes and / or preferably CO 2 pellets.
  • the blasting is carried out in a fixed manner by means of blasting media Physical state immediately before coating by thermal spraying.
  • the means for pretreating the substrate surface a system for coating the substrate surface with a spray layer a thermal spray process.
  • spraying can be used to produce an activated surface with the required roughness also cause cooling of the substrate surface.
  • the abrasive fulfills a double function: on the one hand it serves as Blasting media for the production of roughness and on the other hand as a coolant for the Cooling the substrate surface. It is even possible that the substrate surface cooled down to a predetermined temperature by blasting with blasting media becomes.
  • the cooling of the substrate surface can be accomplished in that the desired cooling is achieved directly by blasting with solid carbon dioxide. But it is also possible that the cold of the sublimed gaseous carbon dioxide is used for further cooling.
  • the additional cooling by the sublimed gaseous carbon dioxide can thereby be increased that aids are coupled to the blasting system, which a Prevent the sublimated gaseous carbon dioxide from being drawn off unintentionally quickly and an uncontrolled escape of the possibly still cold gaseous Prevent carbon dioxide.
  • aids can include a tunnel, contain a shaft, a rotary tube or the like.
  • the blasting according to the invention by means of blasting agents in a solid state of aggregation for roughening the substrate surface can take on a further function in addition to or instead of cooling: namely, the blasting can in addition to roughening also clean the substrate surface.
  • CO 2 pellets are particularly suitable here.
  • the spray layer is compacted again.
  • the quality of the spray layer can be markedly improved.
  • Abrasives are used.
  • steel balls are used for this.
  • Abrasives are used that contain one or more fluids hardened by cold contained in a solid state.
  • the blasting media for the Redensification of the substrate surface carbon dioxide in a solid state include.
  • the device for processing the substrate surface can in addition to the means for Blasting for pretreatment Means for cooling, cleaning and / or post-compaction have the substrate surface.
  • the means of blasting for the Pretreatment can be different or preferably the same as the agents for blasting for the re-densification of the substrate surface.
  • the carbon dioxide has a solid state of matter an average size of 10 microns to 10 mm, preferably from 50 microns to 5 mm and particularly preferably from 1.5 mm to 2.5 mm.
  • the blasting systems work according to the pressure blasting or suction blasting method.
  • the blasting system can comprise a centrifugal wheel system, a pressure blasting system or an inline pelletizer.
  • a pressure jet system the solid CO 2 jet particles are generally metered into a gas stream from a storage container, conveyed with the gas stream to a jet nozzle and passed through the jet nozzle onto the castings to be treated.
  • the blasting nozzle is usually installed in a blasting gun.
  • jet nozzle is to be understood in a broader sense, so that this also includes, for example, an open tube.
  • CO 2 pellets are generated on site and accelerated to the substrate surface to be treated.
  • the invention has the additional advantages of environmental friendliness and good Can be integrated into automated processes.
EP99117877A 1998-09-29 1999-09-10 Traitement de surfaces avant leur revêtement par projection thermique Expired - Lifetime EP0990711B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19844668A DE19844668A1 (de) 1998-09-29 1998-09-29 Bearbeitung von mittels thermischen Spritzens zu beschichtender Oberflächen
DE19844668 1998-09-29

Publications (2)

Publication Number Publication Date
EP0990711A1 true EP0990711A1 (fr) 2000-04-05
EP0990711B1 EP0990711B1 (fr) 2003-07-09

Family

ID=7882667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117877A Expired - Lifetime EP0990711B1 (fr) 1998-09-29 1999-09-10 Traitement de surfaces avant leur revêtement par projection thermique

Country Status (4)

Country Link
EP (1) EP0990711B1 (fr)
AT (1) ATE244775T1 (fr)
DE (2) DE19844668A1 (fr)
PL (1) PL335533A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022106559A1 (de) 2022-03-21 2023-09-21 Muyo Oberflächentechnik GmbH Verfahren und vorrichtung zur vorbehandlung eines bauteils vor einem beschichtungsprozess

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004056179A1 (de) * 2004-11-20 2006-05-24 Borgwarner Inc. Powertrain Technical Center, Auburn Hills Verfahren zur Herstellung eines Verdichtergehäuses
EP1898003A1 (fr) * 2006-09-05 2008-03-12 SBZ Schörling-Brock Zweiwegetechnik GmbH Méthode permettant d'enlever des couches de saleté, de préférence des parois ou sols de tunnels, de manière sûre et rapide
DE102006045666A1 (de) * 2006-09-27 2008-04-03 Mtu Aero Engines Gmbh Verfahren zur Erzeugung von Oberflächenbeschichtungen auf Bauteilen
FR2912072A1 (fr) * 2007-02-05 2008-08-08 Hmrexpert Soc Par Actions Simp Procede de refroidissement et de nettoyage de revetement en cours de depot par projection thermique
DE102013107400B4 (de) 2013-07-12 2017-08-10 Ks Huayu Alutech Gmbh Verfahren zur Entfernung des Oversprays eines thermischen Spritzbrenners

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165962A (ja) * 1982-03-24 1983-10-01 Ishikawajima Harima Heavy Ind Co Ltd 氷粒ブラスト方法
EP0316264A2 (fr) * 1987-11-11 1989-05-17 Werner & Zeisse GmbH & Co. Procédé et dispositif pour le dévernissage et l'enlèvement de couches de surfaces
DE3830132A1 (de) * 1987-12-11 1989-06-22 Mitsubishi Electric Corp Verfahren zum bearbeiten einer grundplatte fuer magnetplatten
JPH0250947A (ja) * 1988-08-11 1990-02-20 Yamada Kinzoku Boshoku Kk 溶射被膜の封孔処理法
US4924643A (en) * 1988-02-12 1990-05-15 Carboxyque Francaise Method and apparatus for the treatment of work pieces by shot blasting
EP0375914A1 (fr) * 1988-12-30 1990-07-04 URANIT GmbH Procédé pour le revêtement de matériaux composites contenant des fibres
WO1993024275A1 (fr) * 1992-06-01 1993-12-09 Ice Blast International Ltd. Sablage par cristaux de glace
WO1997020961A1 (fr) * 1995-12-06 1997-06-12 Black Ice Golf Company, L.L.C. Procede de revetement de la surface de frappe d'un club de golf
DE19636305C1 (de) * 1996-09-06 1998-03-12 Linde Ag Verfahren und Vorrichtung zur Entfernung von Beschichtungen oder Belägen von Oberflächen
DE19639437A1 (de) * 1996-09-25 1998-04-02 Siemens Ag Verfahren zur Behandlung von metallischen Oberflächen in einem Relais
WO1998058768A1 (fr) * 1997-06-20 1998-12-30 Gevi Gesellschaft Für Entwicklung Und Vertrieb Industrieller, Zerstörungsfreier Und Umweltfreundlicher Verfahrenstechniken Zur Innensanierung Von Rohrleitungen Mbh Procede d'assainissement de canalisations au moyen de neige carbonique

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165962A (ja) * 1982-03-24 1983-10-01 Ishikawajima Harima Heavy Ind Co Ltd 氷粒ブラスト方法
EP0316264A2 (fr) * 1987-11-11 1989-05-17 Werner & Zeisse GmbH & Co. Procédé et dispositif pour le dévernissage et l'enlèvement de couches de surfaces
DE3830132A1 (de) * 1987-12-11 1989-06-22 Mitsubishi Electric Corp Verfahren zum bearbeiten einer grundplatte fuer magnetplatten
US4924643A (en) * 1988-02-12 1990-05-15 Carboxyque Francaise Method and apparatus for the treatment of work pieces by shot blasting
JPH0250947A (ja) * 1988-08-11 1990-02-20 Yamada Kinzoku Boshoku Kk 溶射被膜の封孔処理法
EP0375914A1 (fr) * 1988-12-30 1990-07-04 URANIT GmbH Procédé pour le revêtement de matériaux composites contenant des fibres
WO1993024275A1 (fr) * 1992-06-01 1993-12-09 Ice Blast International Ltd. Sablage par cristaux de glace
WO1997020961A1 (fr) * 1995-12-06 1997-06-12 Black Ice Golf Company, L.L.C. Procede de revetement de la surface de frappe d'un club de golf
DE19636305C1 (de) * 1996-09-06 1998-03-12 Linde Ag Verfahren und Vorrichtung zur Entfernung von Beschichtungen oder Belägen von Oberflächen
DE19639437A1 (de) * 1996-09-25 1998-04-02 Siemens Ag Verfahren zur Behandlung von metallischen Oberflächen in einem Relais
WO1998058768A1 (fr) * 1997-06-20 1998-12-30 Gevi Gesellschaft Für Entwicklung Und Vertrieb Industrieller, Zerstörungsfreier Und Umweltfreundlicher Verfahrenstechniken Zur Innensanierung Von Rohrleitungen Mbh Procede d'assainissement de canalisations au moyen de neige carbonique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 002 (M - 266) 7 January 1984 (1984-01-07) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 215 (C - 0716) 8 May 1990 (1990-05-08) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022106559A1 (de) 2022-03-21 2023-09-21 Muyo Oberflächentechnik GmbH Verfahren und vorrichtung zur vorbehandlung eines bauteils vor einem beschichtungsprozess

Also Published As

Publication number Publication date
PL335533A1 (en) 2000-04-10
EP0990711B1 (fr) 2003-07-09
ATE244775T1 (de) 2003-07-15
DE19844668A1 (de) 2000-03-30
DE59906246D1 (de) 2003-08-14

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