EP2014415B1 - Procédé de traitement d'une surface d'un composant d'un turbine à gas - Google Patents

Procédé de traitement d'une surface d'un composant d'un turbine à gas Download PDF

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Publication number
EP2014415B1
EP2014415B1 EP08011156A EP08011156A EP2014415B1 EP 2014415 B1 EP2014415 B1 EP 2014415B1 EP 08011156 A EP08011156 A EP 08011156A EP 08011156 A EP08011156 A EP 08011156A EP 2014415 B1 EP2014415 B1 EP 2014415B1
Authority
EP
European Patent Office
Prior art keywords
component
hvof
burner
powder
blasting
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 - Fee Related
Application number
EP08011156A
Other languages
German (de)
English (en)
Other versions
EP2014415A1 (fr
Inventor
Herbert Fischer
Erwin Fischhaber
Stefan Schneiderbanger
Wolfgang Wachter
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.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines 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
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP2014415A1 publication Critical patent/EP2014415A1/fr
Application granted granted Critical
Publication of EP2014415B1 publication Critical patent/EP2014415B1/fr
Expired - Fee Related legal-status Critical Current
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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • 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
    • B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
    • 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
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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 processing a surface of a component, such as a component of an aircraft engine or a gas turbine, according to the preamble of claim 1, as from the document US 2007/116890 A1 is known.
  • gas turbine components or components of an aircraft engine can be coated by thermal spraying. It is known - at least the applicant internally - further that prior to such thermal spraying, the surface of the corresponding component can be roughened to effect a better grip of the subsequently applied layer. Such roughening can also be called activating.
  • This - at least the applicant internally known design thus initially requires a transport to the blasting chamber, and thus appropriate transport time, a subsequent take in holding devices of the blasting chamber, and thus appropriate set-up times, and a corresponding removal of the component and a transport to the injection chamber, and thus correspondingly connected times, as well as a subsequent spraying within the injection chamber.
  • the present invention has the object to provide a way to edit the surface of gas turbine components, in particular for thermal spraying of gas turbine components, which allows low cycle times.
  • a method for processing a surface of a component such as a component of an aircraft engine, is proposed.
  • the processing can be in particular a blasting or roughening and / or coating.
  • the coating can be carried out in particular by thermal spraying or be a thermal spraying.
  • an injection device which is capable of accelerating pulverulent particles to a high speed, or an HVOF burner or a cold gas gun (cold gas gun) is provided, as well as powder which has ceramic or ceramic powder , And a component, such as component of an aircraft engine whose surface is to be machined.
  • This burner, this powder and this component can be done in any order or overlapping in time or at the same time.
  • the surface of the component is blasted by means of the ceramic powder and by means of the HVOF burner.
  • the ceramic powder is thereby moved by means of the beam generated by the HVOF burner on the surface of the component, such as component of the aircraft engine, to roughen this surface.
  • the component may, as mentioned, be a component of an aircraft engine; but other components are also contemplated, such as printing rollers of the printing industry, e.g. Pressure roller with a diameter of 6 m and a diameter of 1 m, or hydraulic cylinder or the like.
  • printing rollers of the printing industry e.g. Pressure roller with a diameter of 6 m and a diameter of 1 m, or hydraulic cylinder or the like.
  • HVOF high velocity oxy-flame flame spraying
  • the ceramic is not melted during high-speed flame spraying or during the acceleration or movement by means of a burner for the high-speed flame spraying or cold gas spraying device. This is especially so that the temperatures occurring are not sufficient to melt ceramic.
  • a screening of the ceramic powder or of the ceramic-containing powder takes place before application by means of the HVOF burner.
  • This can for example be such that by means of the screening a predetermined defined grain size of the ceramic powder is set, or a grain size that is smaller than a predetermined grain size limit, or a predetermined grain size, which is in a predetermined grain size range.
  • the screening out takes place in such a way that the grain size is substantially 120 mesh or substantially smaller than 120 mesh.
  • the entire surface or the entire outer surface of the component of the aircraft engine is blasted. It can also be provided that a portion of the addressed outer surface or the surface of the component is blasted.
  • At least one roughened or activated portion of the surface of the component (the aircraft engine) by means of the same HVOF burner or by means of the same cold gas injection device is coated.
  • This coating is carried out in a preferred embodiment by HVOF spraying or cold gas spraying (cold gas spraying).
  • HVOF High Velocity Oxy-Fuel Flame
  • -Spraying is Germanized as a technical term.
  • HVOF High Velocity Oxy-Fuel Flame
  • the designs that relate to the invention or its developments in the present Revelation are called and in connection with which the HVOF is called, in alternative inventive design in relation to the respective reference to the HVOF may have a corresponding reference to cold gas spraying (cold gas spraying).
  • the HVOF spraying is carried out by means of the same HVOF burner, by means of which the aforementioned radiation takes place, in particular with respect to the roughened or activated surface or a portion of the roughened or activated surface or with respect to the blasted surface or a portion of the blasted surface.
  • the HVOF burner is designed such that by means of this can produce a hot gas jet, wherein a plurality of separate channels are provided, from which optional powder in the given during operation hot gas jet can be brought.
  • a hot gas jet wherein a plurality of separate channels are provided, from which optional powder in the given during operation hot gas jet can be brought.
  • different powders can be brought into the mentioned hot gas jet from different channels.
  • a switching possibility or switching device can be provided.
  • a first of said channels communicates with a first container in which ceramic powder is provided for blasting or activating or roughening the surface or the surface portion, and that a second of these channels is in communication with a second, different from the first container container, wherein in this second container, a powder for the thermal spraying or the HVOF spraying of said surface portion or said surface is given.
  • a switching device which allows first roughening or activating or blasting of the surface by means of the ceramic powder delivered from one of the containers and the corresponding output through the first channel, and then - in particular by means of the switching device - the first container or first channel can be closed or closed, and a second container and / or channel is opened, through which powder emerges, which is discharged into the hot gas jet and then causing thermal spraying or HVOF spraying of the previously blasted or activated surface.
  • At least a portion of the ceramic powder of the HVOF burner is accelerated to a speed which is above 300 m / s, preferably above 400 m / s, more preferably above 700 m / s , preferably above 1000 m / s.
  • the ceramic powder provided for blasting or activating the surface or a surface section does not melt during the process, wherein in particular the temperatures generated by means of the HVOF burner are corresponding.
  • a screening of the ceramic powder takes place before the blasting, wherein, for example, the screening can be such that blasting powder with a particle size of less than 130 mesh and / or greater than 110 mesh, preferably of essentially 120 mesh, is used or used is screened for the rays.
  • a device in particular HVOF burner with multiple powder conveyors is used, in particular, can be switched between this powder conveyors.
  • a ceramic powder for blasting for example, normal corundum or Al 2 O 3 or E-delkorund or silicon carbide (SiC 2 ) normal corundum can be used.
  • a surface activation in particular with normal corundum rays, is effected with a HVOF burner. It can be provided that subsequently a switching of the powder strand and direct spraying of the layer is effected or carried out. This may in particular be such that there is essentially no interruption.
  • An advantage of the latter design in particular is that time savings are achieved and a further advantage may be that fewer devices are required. Contamination of the activated surface during transport or storage is avoided. A renewed oxidation of oxygen-affine materials such as Mg or Al is avoided. This leads in particular to an improved layer connection. In particular, it can be provided that the component no longer has to be transported in the meantime or has to be transported over long distances. Also, a workload can be an advantage of the invention.
  • the process can also be used to clean HVOF nozzles of buildup if necessary.
  • the Fig. 1 and 2 show an exemplary apparatus for carrying out an exemplary method according to the invention.
  • the apparatus 1 shown in the figures comprises or is formed by an HVOF burner 10.
  • a component 12 of a gas turbine engine in particular component 12 of an aircraft engine, is also shown.
  • the HVOF burner 10 and the component 12 of the aircraft engine are also shown.
  • powder is provided which consists of ceramic or has ceramic.
  • This powder which is not shown in the figures, is supplied by means of the apparatus 1, such that it is fed into the hot gas jet 14, which is formed by means of the gas emerging from the nozzle 16 of the burner 10.
  • the ceramic powder is used in one step of the process, which in Fig. 1 is shown on a surface 18 of the component 12 applied to radiate this or activate or roughen. Consequently, in Fig. 1 surface activation or surface roughening or surface blasting is shown.
  • the component 12 is rotated during blasting, as indicated for example by the arrow 20. Furthermore, it is provided in particular - which is schematically indicated by the arrow 22 - that a Abzeilen of the component takes place, so in particular the component 1 is traversed line by line and each row is rotated according to the arrow 20.
  • Fig. 2 shows the design according to Fig. 1 , where in Fig. 2 which is shown at the beam subsequent ⁇ -coating.
  • the coating is carried out by means of rotation according to the arrow 20 of the component 1 and by means of lines corresponding to the arrow 22nd
  • the device also has a holding device or receiving device for receiving or holding a component 12.
  • a coating material in particular in the form of powder
  • the hot gas jet 14 is supplied, wherein it is provided in particular that of the step accordingly Fig. 1 according to the step Fig. 2 the powder strand is switched accordingly.
  • the device 1 provision is made, in particular, for the device 1 to have a plurality of powder conveyors and a switching device for switching from a powder conveyor, which is intended for the conveyance of ceramic powder for blasting, to a powder conveyor, which is provided for conveying powder for the coating.

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

Claims (5)

  1. Procédé d'usinage d'une surface (18) d'un composant (12), tel qu'un composant (12) d'un moteur d'avion, comprenant les étapes suivantes :
    - préparation d'un brûleur à HVOF (10) ou d'un dispositif d'injection de gaz froid ;
    - préparation d'une poudre contenant de la céramique,
    - préparation du composant (12) dont la surface (18) doit être usinée ;
    - décapage d'au moins une partie de la surface (18) du composant (12) au moyen de la poudre céramique et au moyen du brûleur à HVOF (10) ou au moyen du dispositif d'injection de gaz froid, la poudre céramique étant déplacée à la surface (18) du composant (12) au moyen du jet produit par le brûleur à HVOF (10) ou le dispositif d'injection de gaz froid, afin de rugosifier ou d'activer ladite surface (18), au moins une partie rugosifiée ou activée de la surface (18) du composant (12) étant revêtue après le décapage au moyen du même brûleur à HVOF (10) ou au moyen du même dispositif d'injection de gaz froid.
  2. Procédé selon la revendication 1, caractérisé en ce que le revêtement de la surface (18) rugosifiée ou activée ou de la partie rugosifiée ou activée de la surface (18) du composant (12) est effectué par injection thermique ou par injection HVOF ou revêtement par gaz froid.
  3. Procédé selon la revendication 2, caractérisé en ce que le brûleur à HVOF (10) est prévu pour générer un jet de gaz chaud, et comprend plusieurs canaux séparés permettant d'alimenter en poudres différentes au choix le jet de gaz chaud en service.
  4. Procédé selon la revendication 3, caractérisé en ce qu'un premier desdits canaux est relié à un premier conteneur où est présente la poudre céramique pour le décapage de la surface (18) ou de la partie de surface, et en ce qu'un deuxième desdits canaux est relié à un deuxième conteneur, différent du premier, où est présente la poudre pour le revêtement de la surface (18) ou de la partie de surface.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que la projection d'au moins une partie de la poudre céramique au moyen du brûleur à HVOF (10) est accélérée à une vitesse supérieure à 300 m/s.
EP08011156A 2007-07-06 2008-06-19 Procédé de traitement d'une surface d'un composant d'un turbine à gas Expired - Fee Related EP2014415B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007031602A DE102007031602A1 (de) 2007-07-06 2007-07-06 Verfahren zum Bearbeiten einer Oberfläche eines Bauteils eines Flugtriebwerks

Publications (2)

Publication Number Publication Date
EP2014415A1 EP2014415A1 (fr) 2009-01-14
EP2014415B1 true EP2014415B1 (fr) 2011-08-03

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Application Number Title Priority Date Filing Date
EP08011156A Expired - Fee Related EP2014415B1 (fr) 2007-07-06 2008-06-19 Procédé de traitement d'une surface d'un composant d'un turbine à gas

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EP (1) EP2014415B1 (fr)
DE (1) DE102007031602A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009052946A1 (de) 2009-11-12 2011-05-19 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zur Bauteilbeschichtung
DE102010017859B4 (de) * 2010-04-22 2012-05-31 Mtu Aero Engines Gmbh Verfahren zum Bearbeiten einer Oberfläche eines Bauteils
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
US9347136B2 (en) 2014-01-31 2016-05-24 Pratt & Whitney Canada Corp. Method for applying a coating to a substrate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6383658B1 (en) * 1999-11-18 2002-05-07 General Electric Company Thermally sprayed coatings having an interface with controlled cleanliness
US20050036892A1 (en) * 2003-08-15 2005-02-17 Richard Bajan Method for applying metallurgical coatings to gas turbine components
US20050238894A1 (en) * 2004-04-22 2005-10-27 Gorman Mark D Mixed metal oxide ceramic compositions for reduced conductivity thermal barrier coatings
US20070116890A1 (en) * 2005-11-21 2007-05-24 Honeywell International, Inc. Method for coating turbine engine components with rhenium alloys using high velocity-low temperature spray process

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Publication number Publication date
DE102007031602A1 (de) 2009-01-08
EP2014415A1 (fr) 2009-01-14

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