EP2576138B1 - Procédé pour l'enlèvement de revêtements céramiques par décapage au co2 à l'état solide - Google Patents

Procédé pour l'enlèvement de revêtements céramiques par décapage au co2 à l'état solide Download PDF

Info

Publication number
EP2576138B1
EP2576138B1 EP11723670.3A EP11723670A EP2576138B1 EP 2576138 B1 EP2576138 B1 EP 2576138B1 EP 11723670 A EP11723670 A EP 11723670A EP 2576138 B1 EP2576138 B1 EP 2576138B1
Authority
EP
European Patent Office
Prior art keywords
solid
coating
blasting
recited
substrate
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.)
Active
Application number
EP11723670.3A
Other languages
German (de)
English (en)
Other versions
EP2576138B2 (fr
EP2576138A1 (fr
Inventor
Andrea Scrivani
Carlo Giolli
Bruno Antonio Allegrini
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.)
A&G Chemical Production Srl
Turbocoating SpA
Original Assignee
A&G Chemical Production Srl
Turbocoating SpA
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=42942267&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2576138(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by A&G Chemical Production Srl, Turbocoating SpA filed Critical A&G Chemical Production Srl
Publication of EP2576138A1 publication Critical patent/EP2576138A1/fr
Application granted granted Critical
Publication of EP2576138B1 publication Critical patent/EP2576138B1/fr
Publication of EP2576138B2 publication Critical patent/EP2576138B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • 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
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives

Definitions

  • Ceramic thick coatings are defined as the protective layer with a thickness greater than 100 ⁇ m while the thin films are defined as protective layers with a thickness lower than 100 ⁇ m.
  • Ceramic thick coatings are made by thermal spray technologies as Air Plasma Spray (APS), Vacuum Plasma Spray (VPS), Suspension Plasma Spray (SPS), Solution Precursor Plasma Spray (SPPS) and High Velocity Oxygen Fuel (HVOF), mainly.
  • Ceramic Thin Films are applied by Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD), mainly. Thick Ceramic Coatings are used for different application:
  • Dry-ice particle blasting is similar to sand blasting, plastic bead blasting, or soda blasting where a media is accelerated in a pressurized air stream (or other inert gas) to impact the surface to be cleaned or prepared.
  • a pressurized air stream or other inert gas
  • the media that impacts the surface is solid carbon dioxide (CO 2 ) particles.
  • CO 2 solid carbon dioxide
  • One unique aspect of using dry-ice particles as a blast media is that the particles sublimate (vaporize) upon impact with the surface. The combined impact energy dissipation and extremely rapid heat transfer between the pellet and the surface cause instantaneous sublimation of the solid CO 2 into a gas.
  • the gas expands to nearly eight hundred times the volume of the particle in a few milliseconds in what is effectively a "micro-explosion" at the point of impact that aids the coating removal process. Because of the CO 2 vaporizing, the dry-ice blasting process does not generate any secondary waste. All that remains to be collected is the removed coating. As with other blast media, the kinetic energy associated with dry-ice blasting is a function of the particle mass density and impact velocity. Since CO 2 particles have a relatively low density, the process relies on high particle velocities to achieve the needed impact energy. The high particle velocities are the result of supersonic propellant or air-stream velocities.
  • the CO 2 particles have a very low temperature of -109°F (-78.5°C). This inherent low temperature gives the dry-ice blasting process unique thermodynamically induced surface mechanisms that affect the coating or contaminate in greater or lesser degrees, depending on coating type. Because of the temperature differential between the dry ice particles and the surface being treated, a phenomenon known as thermal shock can occur. As a material's temperature decreases, it becomes brittle, enabling the particle impact to break-up the coating and sever the chemical bond that is weakened by the lower temperature. The thermal gradient or differential between two dissimilar materials with different thermal expansion coefficients can serve to break the bond between the two materials. This thermal shock is most evident when blasting a nonmetallic coating or contaminate bonded to a metallic substrate.
  • Dry Ice stripping should enable the removal of ceramic TC without modifying the MCrAlY bond coat characteristics and mainly the surface morphology.
  • the state of the art of dry ice stripping developed in the previous cited patents offers a coating removal methods which risk to damage the substrate and suffer from low efficiency or very long term duration.
  • a coating removal system having a solid particle nozzle with a detector for detecting particle flow and associated method
  • an apparatus for removing a coating from a substrate, comprising a nozzle having an outlet and adapted to direct a particle stream therethrough at a predetermined flow rate, a signal source for emitting a signal capable of traversing the particle stream, and a signal sensor positioned to detect the signal emitted by the signal source once the signal has passed through the particle stream.
  • the particle stream is directed from the outlet of the nozzle toward a coating on a substrate to remove the coating from the substrate.
  • This method does not include the step of pre-demaging the ceramic coating before removing the ceramic layer using dry ice blasting as included instead in the previous cited patent [ US20080178907 ].
  • the pre-damaging using shot peening or another sand blasting method using abrasive media shows the risk to damage the substrate characteristics as roughness and thickness.
  • the only pre-heating is not able to pre-damage the ceramic coating.
  • the pre-heating alone or the combination of pre-heating and quenching are not able to pre-damage or to remove the ceramic coating as a TBC or to get faster the dry ice stripping process.
  • the only thermal shock is not able to remove the ceramic coating. Dry Ice Blasting is not able to remove in a fast way the ceramic coatings treated with shot peening or/and pre-heating as indicate in the previous cited patent [ US20080178907 ].
  • This method includes only pre-heating by irradiation performed during or immediately before the blasting with solid CO 2 . This is due to the ceramic coating damage mechanism.
  • the density of the solid CO 2 pellets is proportional to the shock wave power. The more the pellets are dense, the more the gas volume growing during the sublimation is greater, the more the shock wave is stronger.
  • the equipment used in this invention is able to maintain high the density of the CO 2 pellets sudden out of the spray gun nozzle.
  • the mass flow of the solid CO 2 pellets is proportional to the shock wave power. The more the amount of Dry Ice pellets interact with the coating surface subliming, the stronger is the shock wave.
  • the present invention refers to a method and an equipment to remove ceramic protective coatings 2 (i.e. Thermal Barrier Coating such a Yttria Partially Stabilized Zirconia - YPSZ) with high removal efficiency and without damaging the substrate 1 characteristics.
  • the removing of the ceramic coating 2 without damaging the substrate 1 characteristics is obtained by a combination of coating/substrate pre-heating by irradiation immediately before ( Fig.2 (b) ) or during the stripping ( Fig.2 (a) ) and improved solid CO 2 4 blasting parameters.
  • the substrate 1 can be metallic, ceramic, plastic or composite.
  • the substrate characteristics not affected by the present invention are the substrate thickness and roughness. Substrate thickness can vary in an range of 1 ⁇ m to 1 m.
  • the substrate can be rough (Ra > 9 ⁇ m) or smooth (Ra ⁇ 9 ⁇ m).
  • the stripping method is a single stage process where only a combination of a pre-heating during or immediately before the blasting with solid CO 2 4 can lead to the ceramic coating stripping.
  • the equipment to remove ceramic protective coatings is divided in two parts: Pre-heating Station 5 and Sand Blasting Machine Station 20. This method does not include the step of pre-damaging the ceramic coating 2 before stripping step by dry ice blasting.
  • the substrates 1 coated with ceramic coating 2 are pre-heated in sequence in the pre-heating stations 5 ( Fig.3 ) up to the maximum temperature that the substrate can tolerate.
  • the pre-heating station 5 is able to heat the coating/substrate up to a maximum temperature of 1000°C.
  • the coated component in moved in the solid CO 2 blasting station 20.
  • the coating stripping using solid CO 2 blasting with optimized parameters is performed up to the quenching of the process at room temperature.
  • the component is then moved in another pre-heating station 5 while another hot component is moved into the stripping station 20 ( Fig.3 ).
  • the steps of pre-heating and solid CO 2 blasting are repeated for each substrate up to the complete coating removal.
  • the Sand Blasting Machine Station 20 for blasting by solid CO 2 4 used in the method consists of a compressor, a feeder unit to feed dry ice into one or more spray guns 3.
  • dry-ice particles are delivered and metered by various mechanical means to the inlet end of a hose and are drawn through the hose to the nozzle by means of vacuum produced by an ejector-type nozzle.
  • a stream of compressed air supplied by the second hose
  • this type of nozzle produces vacuum on the cavity around the primary jet and can therefore drag particles up through the ice hose and into the mixing tube where they are accelerated as the jet mixes with the entrained air/particle mixture.
  • the exhaust Mach number from this type of nozzle is, in general, slightly supersonic.
  • Blast machines are also differentiated into dry ice block shaver blasters and dry-ice pellet blasters.
  • Pellet blast machines have a hopper that is filled with pre-manufactured CO 2 pellets. The hopper uses mechanical agitation to move the pellets to the bottom of the hopper and into the feeder system. The pellets are extruded through a die plate under great pressure. This creates an extremely dense pellet for maximum impact energy.
  • the pellets are available in several sizes ranging from 0.040 inch (1 mm) to 0.120 inch (3 mm) in diameter. The 0.120 inch (3 mm) in diameter pellets are commercially available.
  • the solid CO 2 blasting machine station use a continuous (not pulsing) solid CO 2 blasting flow (constant pressure). Said continuous flow is obtained using a core in the feeder device ( Figure 4 ) in combination with a spray two-hose nozzle gun 3 ( Figure 5 ).
  • the Dry Ice is fed using a special feeding device as schematized in Figure 4 .
  • the dry ice pellets contained in a box 9 are moved by a rotating scoop 10 in a large hole 11. Then the dry ice pellets are moved from the position 11 by a rotating punched tool in a further hole in the position 12. In this way the dry ice pellets 4 are continuously stocked in the feedstock area 12.
  • the two-hose nozzle is schematized in Figure 5 .
  • Solid CO 2 pellets are fed in the main nozzle hose 17 by axial injection 16 in the internal injector 18.
  • a second pipe with high pressure air up to thirty bar is connected with the convergent/divergent nozzle 19 ( Fig.5 ).
  • the high pressure air is accelerated by convergent/divergent nozzle up to supersonic speed.
  • the dry ice pellets 4 are injected directly in the accelerated high pressure air stream after the nozzle throat 19.
  • the continuous flow shows a mass flow of solid CO 2 4 in a range of about 100 - 3500 g/min and a pressure in a range of 1 - 30 bar.
  • a continuous flow of solid CO 2 is very important in order to reach very high removal rate. In fact if the flow is pulsed not only solid CO 2 will arrive on the coating surface but cool air, too. The cool air will decrease the substrate/coating temperature without a contribution to the stripping process that is due to the shock waves due to the solid CO 2 sublimation. In that way the removal rate will be less than using a continuous flow of solid CO 2 .
  • High pressure is very important to increase the mass flow and to increase the removal rate. In fact, when the shock waves crumble ceramic coatings, the high pressure aids ceramic fragments removal.
  • the solid CO 2 Pellets used for blasting have very high density (Density 1.4 - 1.6 g/cm 3 ).
  • the CO 2 pellets density is very important because the more is the density, the more is the shock wave power due to the solid CO 2 sublimation.
  • the sand blasting equipment is designed to maintain the pellets density in a range of 1.525 - 1.6 g/cm 3 before the impact on the ceramic coating. This is obtained using in combination the above mentioned feeder and two-hose nozzle.
  • the pre-heating systems is performed by IR lamps 6 using irradiation. This method shows two advantages:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (11)

  1. Procédé pour enlever des revêtements en céramique (2) appliqués sur des substrats (1) en métal, céramique, plastique ou composite, comprenant un moyen de décapage par une phase de bombardement avec du CO2 solide (4); ledit procédé étant appliqué sans changer ni endommager les caractéristiques d'épaisseur et de rugosité du substrat (1), le procédé étant configuré de manière à préparer le substrat (1) pour être couvert par une nouvelle couche de céramique (2);
    caractérisé en ce que
    le procédé prévoit une combinaison d'un revêtement (2) et d'un dispositif de préchauffage (1) du substrat par irradiation pendant ou immédiatement avant ledit décapage par bombardement avec du CO2 solide (4).
  2. Procédé selon la revendication 1, dans lequel lesdits composants sont préchauffés dans la séquence de préchauffage dans les stations (5), puis le revêtement est enlevé par décapage du CO2 solide (4) jusqu'au refroidissement du processus, précisément jusqu'à la température ambiante; les opérations de bombardement et de préchauffage du CO2 solide sont répétées pour chaque substrat, jusqu'à l'élimination complète du revêtement.
  3. Procédé selon la revendication 1, caractérisé en ce qu'il est appliqué à un écoulement continu de bombardement du CO2 solide, et précisément non pulsé.
  4. Procédé selon la revendication 3, caractérisé en ce que ledit écoulement de bombardement du CO2 solide est appliqué avec une pression constante.
  5. Procédé selon la revendication 1, caractérisé en ce que ledit préchauffage du revêtement/substrat par irradiation est appliqué à une vitesse comprise entre 1°C/ min et 100°C/min.
  6. Procédé selon la revendication 1, caractérisé en ce que le préchauffage du revêtement/substrat par irradiation est augmenté jusqu'à 1000°C.
  7. Procédé selon la revendication 3, caractérisé en ce que ledit écoulement continu applique un débit massique du CO2 solide compris entre environ 100 et 3500 g/min.
  8. Procédé selon la revendication 3, caractérisé en ce que ledit écoulement continu peut faire varier la pression entre 1 et 30 bar.
  9. Procédé selon la revendication 1, caractérisé en ce qu'il est capable de produire un jet de CO2 solide en préservant la densité des boulettes entre 1,525 et 1,6 g/cm3 avant l'impact sur le revêtement céramique.
  10. Procédé selon la revendication 1, caractérisé en ce que le revêtement céramique est retiré à une vitesse comprise entre 1 et 100 cm2/min.
  11. Procédé selon la revendication 1, caractérisé en ce qu'il ne comprend pas l'opération préventive d'endommager le revêtement céramique avant l'opération de décapage au moyen d'un bombardement avec de la glace sèche.
EP11723670.3A 2010-04-29 2011-04-27 Procédé pour l'enlèvement de revêtements céramiques par décapage au co2 à l'état solide Active EP2576138B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPR2010A000031A IT1399945B1 (it) 2010-04-29 2010-04-29 Metodo e apparato per rimuovere ricoprimenti ceramici, con sabbiatura di anidride carbonica allo stato solido.
PCT/IB2011/051839 WO2011135526A1 (fr) 2010-04-29 2011-04-27 Procédé et équipement pour l'enlèvement de revêtements céramiques par décapage au co2 à l'état solide

Publications (3)

Publication Number Publication Date
EP2576138A1 EP2576138A1 (fr) 2013-04-10
EP2576138B1 true EP2576138B1 (fr) 2015-02-11
EP2576138B2 EP2576138B2 (fr) 2023-04-05

Family

ID=42942267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11723670.3A Active EP2576138B2 (fr) 2010-04-29 2011-04-27 Procédé pour l'enlèvement de revêtements céramiques par décapage au co2 à l'état solide

Country Status (6)

Country Link
US (1) US20130040538A1 (fr)
EP (1) EP2576138B2 (fr)
CN (1) CN103108725B (fr)
CA (1) CA2797184A1 (fr)
IT (1) IT1399945B1 (fr)
WO (1) WO2011135526A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8679246B2 (en) * 2010-01-21 2014-03-25 The University Of Connecticut Preparation of amorphous mixed metal oxides and their use as feedstocks in thermal spray coating
WO2013144022A1 (fr) 2012-03-28 2013-10-03 Alstom Technology Ltd Procédé pour retirer une céramique
US10293465B2 (en) 2014-08-29 2019-05-21 Hzo, Inc. Equipment for removing protective coatings from substrates
KR20160065226A (ko) * 2014-11-07 2016-06-09 세메스 주식회사 기판 처리 장치 및 기판 처리 방법
JP6718477B2 (ja) * 2018-03-08 2020-07-08 三菱重工業株式会社 積層造形方法
CN109536868A (zh) * 2018-11-27 2019-03-29 广东省新材料研究所 石油输送分流环的内孔超音速火焰喷涂金属陶瓷涂层的方法
US11441974B2 (en) 2019-08-01 2022-09-13 Applied Materials, Inc. Detection of surface particles on chamber components with carbon dioxide
TWI832028B (zh) 2019-12-31 2024-02-11 美商冷卻噴射公司 粒子噴射系統及從一噴射噴嘴排出一挾帶粒子流之方法
DE102023109598A1 (de) 2023-04-17 2024-10-17 Muyo Oberflächentechnik GmbH Verfahren zur vorbehandlung eines bauteils vor einem beschichtungsprozess und vorbehandeltes bauteil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001066365A2 (fr) * 1999-11-30 2001-09-13 The Boeing Company Systeme d'enlevement de revetement presentant une buse a particules solides ayant un detecteur permettant la detection de l'ecoulement de particules et procede correspondant

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5108512A (en) * 1991-09-16 1992-04-28 Hemlock Semiconductor Corporation Cleaning of CVD reactor used in the production of polycrystalline silicon by impacting with carbon dioxide pellets
US5472369A (en) * 1993-04-29 1995-12-05 Martin Marietta Energy Systems, Inc. Centrifugal accelerator, system and method for removing unwanted layers from a surface
US5792275A (en) * 1995-06-06 1998-08-11 International Business Machines Corporation Film removal by chemical transformation and aerosol clean
US5723078A (en) 1996-05-24 1998-03-03 General Electric Company Method for repairing a thermal barrier coating
US6199276B1 (en) 1999-08-11 2001-03-13 General Electric Company Method for removing a dense ceramic thermal barrier coating from a surface
US6235352B1 (en) 1999-11-29 2001-05-22 Electric Power Research Institute, Inc. Method of repairing a thermal barrier coating
US6238743B1 (en) 2000-01-20 2001-05-29 General Electric Company Method of removing a thermal barrier coating
US6379749B2 (en) 2000-01-20 2002-04-30 General Electric Company Method of removing ceramic coatings
AU2001247406A1 (en) * 2000-03-13 2001-10-15 The Deflex Llc Dense fluid spray cleaning process and apparatus
US7451941B2 (en) * 2001-03-13 2008-11-18 Jackson David P Dense fluid spray cleaning process and apparatus
EP1251191B1 (fr) 2001-04-21 2004-06-02 ALSTOM Technology Ltd Procédé de réparation d'un revêtement céramique
US6656017B2 (en) * 2001-04-24 2003-12-02 David P. Jackson Method and apparatus for creating an open cell micro-environment for treating a substrate with an impingement spray
US6561872B2 (en) * 2001-06-11 2003-05-13 General Electric Company Method and apparatus for stripping coating
DE10128507B4 (de) 2001-06-14 2008-07-17 Mtu Aero Engines Gmbh Verwendung einer Vorrichtung zum chemischen oder elektrochemischen Bearbeiten von Bauteilen
US6598379B2 (en) 2001-09-07 2003-07-29 Illinois Tool Works Inc. Multi-tab folder for ring type stretch film wrapping machine, and a method of operating the same
US20030101587A1 (en) 2001-10-22 2003-06-05 Rigney Joseph David Method for replacing a damaged TBC ceramic layer
US6699101B2 (en) 2001-11-29 2004-03-02 General Electric Company Method for removing a damaged substrate region beneath a coating
EP1317995A1 (fr) 2001-12-05 2003-06-11 Siemens Aktiengesellschaft Procédé et dispositif de lissage de surface d'une aube de turbine à gaz
US6663919B2 (en) 2002-03-01 2003-12-16 General Electric Company Process of removing a coating deposit from a through-hole in a component and component processed thereby
JP2006504531A (ja) * 2002-08-08 2006-02-09 コンソリデイテッド エンジニアリング カンパニー， インコーポレイテッド 鋳造物のための熱処理および砂除去のための方法および装置
US6955308B2 (en) 2003-06-23 2005-10-18 General Electric Company Process of selectively removing layers of a thermal barrier coating system
US7805822B2 (en) 2003-12-15 2010-10-05 Turbocombustor Technology, Inc. Process for removing thermal barrier coatings
DE10360063B4 (de) 2003-12-19 2006-08-10 Mtu Aero Engines Gmbh Verfahren zum Entschichten von Bauteilen
DE102004009757B4 (de) 2004-02-28 2015-12-31 MTU Aero Engines AG Verfahren zum elektrochemischen Entschichten von Bauteilen, Verwendung des Verfahrens und Elektrode zum elektrochemischen Entschichten von Bauteilen
DE102004049825B4 (de) 2004-10-13 2006-11-09 Mtu Aero Engines Gmbh Verfahren zum Entschichten von beschichteten Bauteilen
DE102008004559B4 (de) * 2007-01-23 2017-03-16 General Electric Technology Gmbh Verfahren zum Bearbeiten eines thermisch belasteten Bauteils
DE102007022174B3 (de) * 2007-05-11 2008-09-18 Voestalpine Stahl Gmbh Verfahren zum Erzeugen und Entfernen einer temporären Schutzschicht für eine kathodische Beschichtung
CN101398351A (zh) * 2008-10-31 2009-04-01 湘潭大学 一种用于研究平板结构热障涂层界面屈曲破坏的热障涂层试样的制备工艺

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001066365A2 (fr) * 1999-11-30 2001-09-13 The Boeing Company Systeme d'enlevement de revetement presentant une buse a particules solides ayant un detecteur permettant la detection de l'ecoulement de particules et procede correspondant

Also Published As

Publication number Publication date
EP2576138B2 (fr) 2023-04-05
WO2011135526A1 (fr) 2011-11-03
US20130040538A1 (en) 2013-02-14
IT1399945B1 (it) 2013-05-09
EP2576138A1 (fr) 2013-04-10
ITPR20100031A1 (it) 2011-10-30
CN103108725B (zh) 2015-07-08
CA2797184A1 (fr) 2011-11-03
CN103108725A (zh) 2013-05-15

Similar Documents

Publication Publication Date Title
EP2576138B1 (fr) Procédé pour l'enlèvement de revêtements céramiques par décapage au co2 à l'état solide
EP1705266B1 (fr) Dépôt d'une couche de liaison sur des organes de machine par pulverisation à froid
US6955308B2 (en) Process of selectively removing layers of a thermal barrier coating system
EP1887097B1 (fr) Procédé simultané de vaporisation thermique et nettoyage de trou de refroidissement
EP1674595A2 (fr) Reparation structural par pulversation a froid d'aluminium
EP1674594A1 (fr) Restauration des aubes par puvérisation à froid
JP2004076157A (ja) ＭＣｒＡｌＸコーティングの溶射方法
US20060090593A1 (en) Cold spray formation of thin metal coatings
CN101711290A (zh) 为涡轮发动机部件上的热障涂层形成粘合层的方法
JP2006161161A (ja) 真空コールドスプレープロセス
US20050059321A1 (en) Method and device for polishing the surface of a gas turbine blade
JP2006131997A (ja) ワークピースの修復方法
US20080131612A1 (en) Method for making an environment-resistant and thermal barrier coating system on a component
US20080178907A1 (en) Method for treating a thermally loaded component
WO2007091102A1 (fr) Appareil de pulverisation cinetique et procede
US20050079286A1 (en) Method of applying coatings
Chwa et al. Thermal diffusivity and erosion resistance of ZrO2–8 wt.% Y2O3 coatings prepared by a laser hybrid spraying technique
JP5647608B2 (ja) 耐溶融金属部材および耐溶融金属部材の製造方法
JP2018508644A (ja) 粒子の選択的除去を一体化する溶射方法
Boulos et al. Plasma Spray Process Integration
US20240352590A1 (en) Method and system for cold deposition of powdered materials on a substrate
WO2023028693A1 (fr) Procédé et système de dépôt à froid de matériaux en poudre sur un substrat
CN118480774A (zh) 一种超音速激光沉积金属合金热障涂层的制备方法
CN114182250A (zh) 涡轮外环大厚度CoNiCrAlY封严涂层的制备方法和CoNiCrAlY封严涂层
Kharlamov et al. Cleaning and surface preparation technology and other factors related to coatings produced by flame spraying

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20121017

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20131120

TPAC Observations filed by third parties

Free format text: ORIGINAL CODE: EPIDOSNTIPA

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140715

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 709756

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602011013636

Country of ref document: DE

Effective date: 20150326

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20150211

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602011013636

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 709756

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150211

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150511

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

26 Opposition filed

Opponent name: SIEMENS AKTIENGESELLSCHAFT

Effective date: 20150710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150611

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150427

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150427

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150611

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: SIEMENS AKTIENGESELLSCHAFT

Effective date: 20150710

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150211

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20230405

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 602011013636

Country of ref document: DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230622

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240419

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240418

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240429

Year of fee payment: 14

Ref country code: FR

Payment date: 20240426

Year of fee payment: 14