EP4281250A1 - Masque de sablage - Google Patents
Masque de sablageInfo
- Publication number
- EP4281250A1 EP4281250A1 EP22700656.6A EP22700656A EP4281250A1 EP 4281250 A1 EP4281250 A1 EP 4281250A1 EP 22700656 A EP22700656 A EP 22700656A EP 4281250 A1 EP4281250 A1 EP 4281250A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- masks
- mask
- sandblasting
- blades
- coating
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
- F01D9/044—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators permanently, e.g. by welding, brazing, casting or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
- B05B12/24—Masking elements, i.e. elements defining uncoated areas on an object to be coated made at least partly of flexible material, e.g. sheets of paper or fabric
-
- 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
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/542—Bladed diffusers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/10—Manufacture by removing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/30—Manufacture with deposition of material
- F05D2230/31—Layer deposition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/50—Building or constructing in particular ways
- F05D2230/51—Building or constructing in particular ways in a modular way, e.g. using several identical or complementary parts or features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/68—Assembly methods using auxiliary equipment for lifting or holding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/12—Fluid guiding means, e.g. vanes
- F05D2240/125—Fluid guiding means, e.g. vanes related to the tip of a stator vane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/19—Two-dimensional machined; miscellaneous
- F05D2250/191—Two-dimensional machined; miscellaneous perforated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/19—Two-dimensional machined; miscellaneous
- F05D2250/193—Two-dimensional machined; miscellaneous milled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
Definitions
- the invention relates to the field of sandblasting operations of aeronautical parts and in particular the sandblasting of turbomachine compressor blade tips.
- Compressor blades are formed of a streamlined blade that guides the airflow into the turbomachine. Depending on its position in the turbine engine and its function, this blade is assembled to an attachment platform, to a hub, to a shroud or to fixed casing elements. This assembly requires the bonding of a ferrule on the free end of the blades which requires preparation of the surface to be bonded, in particular by sandblasting.
- the blade As the blade is manufactured with tight tolerances to guide the airflow precisely, it should be protected from sand so that only the blade tips are sanded.
- the usual practice aims to position a sandblasting mask revealing the blade tips and covering the parts to be protected.
- a metal profile weighing approximately 2 to 5 kg and measuring approximately 5 meters is used to sandblast several dozen blades in a single operation.
- the mask can be a ribbon which is bent over itself to form a hoop, in order to sand the blades already arranged in an annular row and of which one of the respective ends of each blade is fixed to a hub or a casing, the other end to be sandblasted.
- this mask Due to its size and weight, this mask is dangerous to handle, both for the operator and for the parts of the turbomachine that he risks hitting and damaging during handling. Also, its installation in the form of a strapping creates a gap between the two ends facing each other. This gap can be large and must be covered with an adhesive tape or a silicone joint before the sanding operation so as not to affect the surfaces that should not be sanded. This mask also needs to be held in place by external means (a holding structure) during the sandblasting operation.
- the invention aims to overcome at least one of the drawbacks of the prior art, in particular by proposing a sandblasting mask and a corresponding method of use, which improve the safety of operators and equipment, and/or which do not require gap covering operation before sandblasting.
- the subject of the invention is a method for sandblasting blade tips comprising: a step of placing a plurality of sandblasting masks, each mask comprising a body having a row of openings, the masks being positioned such so that each blade passes through an opening in a mask and each blade tip extends projecting from the respective mask, the masks being assembled in pairs, preferably without play; and a step of sandblasting the protruding blade tips of the masks.
- a process of this type allows the use of masks without danger during their manipulation and limits the clearances between the masks.
- the bodies of the masks are made of plastic material and produced by 3D printing, then optionally covered with a polyurea-based coating.
- plastic reduces the weight and thus facilitates the handling and storage of the masks.
- An example of a type of plastic that can be used in this context is PC-ABS (mixture of polycarbonate and acrylonitrile butadiene styrene).
- PC-ABS mixture of polycarbonate and acrylonitrile butadiene styrene
- the coated plastic body helps maximize durability without penalizing the manufacturing cost of the mask.
- the coating is particularly resistant to the abrasiveness of sand. The coating thus protects the body of the mask and if necessary the coating is recharged/replaced without requiring the replacement of the mask (sacrificial coating).
- the step of positioning the masks is preceded by a step during which the vanes are arranged substantially radially in an annular row, the masks describing, once assembled, a circle or an arc of a circle of curvilinear length preferably between 3 and 8 meters, more preferably close to 5 meters.
- the installation of the blades in an annular row is carried out by assembling the blades to a compressor casing, to an outer shroud or to an inner shroud; and after the sandblasting step, an inner or outer shroud is assembled to the sandblasted blade tips.
- the method further comprises a step of monitoring the quality of the masks and in particular the thickness of the coating, and an insufficient quality or a coating thickness below a threshold leads to the reloading of the covering or the replacement of the mask.
- the masks once assembled, form a self-supporting structure. It thus becomes unnecessary to provide external supports for the masks.
- the step of fitting the masks comprises the fitting of 3 to 10 masks, preferably the fitting of 4 or 6 masks. It is understood that the number of masks can be chosen according to their dimensions, the perimeter to be scanned and/or the number of blades to be sandblasted.
- the masks are positioned such that the blade tips protrude from the mask by a length of between 5 and 15 mm, preferably between 7 and 13 mm.
- the invention also relates to a sandblasting mask for such a process, the mask comprising a body having a row of openings intended to receive respective portions of turbomachine compressor blades, the body being essentially formed of plastic material produced by 3D printed and at least partially covered with a polyurea-based coating.
- This sacrificial coating is particularly resistant to the abrasiveness of sand. The coating thus protects the body of the mask and if necessary the coating is refilled/replaced without requiring the replacement of the mask.
- the mask is in the main form of a profile and it is provided with lugs projecting from the profile at each of its ends, the lugs being intended for the assembly of the mask to another identical mask.
- the ends of the mask are intended to be assembled at the respective ends of one or two other identical masks without play.
- the absence of play makes it possible to ensure that no surface to be protected is exposed to sand.
- the mask extends over a length of between 80 and 130 cm.
- the mask weighs between 500 and 1000 grams, preferably between 600 and 700 grams. This allows easy handling and storage.
- the mask has a male end and a female end. These male/female ends can thus form a polarizer making the assembly of the masks efficient and reliable.
- a second row of openings comprises a second row of openings. This allows the sanding of several rows of blades, in particular in a compressor comprising two rows of stator blades or two rows of directly successive rotor blades.
- the invention also relates to a kit comprising a plurality of masks according to one of the embodiments described above, the kit comprising at least two masks having distinct lengths.
- This kit makes it possible to cover a set of blades with more flexibility of use, the small mask(s) can be placed in the places most subject to wear (for example supporting the most mechanical stresses), in order to judiciously anticipate replacement of small parts at lower cost.
- Figure 1 illustrates a schematic sectional view of a turbomachine compressor
- Figures 2 and 3 illustrate a partial view of a compressor stage being assembled
- Figure 4 describes a sandblasting mask according to the invention.
- the terms “internal” and “external” refer to positioning relative to the axis of rotation of a turbomachine.
- the axial direction corresponds to the direction along the axis of rotation of the turbomachine.
- the radial direction is perpendicular to the axis of rotation.
- the tangential direction is perpendicular to the axial and radial directions. Upstream and downstream refer to the main flow direction of the stream in the turbomachine.
- FIG. 1 schematically represents a compressor 4 of a turbomachine. This is a low-pressure compressor, but the teachings of the present application can also be applied to a high-pressure compressor or to a turbine.
- the compressor 4 comprises a rotor 12 which rotates around an axis 14 and which is coupled to a fan 16.
- the fan 16 generates an air flow which is divided into a primary flow 18 and a secondary flow 20 at the nozzle 22.
- the compressor 4 comprises several rows of rotor blades 24 and several rows of stator vanes 26.
- Compressor 4 includes a housing 28.
- Housing 28 may have a generally circular or tubular shape. It can be composed of several angular segments or be one-piece. It may be made of composite material.
- Vanes 24, 26 extend essentially radially.
- the blades 24 are in one piece with a drum 25 to form the rotor 12.
- they can have a platform for fixing to a drum or be welded/glued to a rotating shroud.
- the rotor 12 can thus be made of several moving wheels, each carrying an annular row of rotor blades 24.
- the outer radial end of the vanes 24 comes opposite the casing 28.
- a layer of abradable material 30 is arranged in line with the outer radial end of the vanes 24.
- stator vanes 26 can be fixed to an inner shroud 32 and to the casing 28.
- the invention will be detailed for stator vanes 26 but it is understood that the teachings described for the inner ends (or tips) of the stator vanes 26 can also apply to their outer ends or to the rotor blades.
- Figure 2 illustrates a partial view of a compressor stage during an intermediate stage of compressor assembly, in which the vanes 26 are attached at their outer end 26.1 to the casing 28. They may for example have been inserted through slots 28.1 of the casing 28.
- the inner end 26.2 is free. It is ready to be sandblasted before welding or gluing to the ferrule (32 in FIG. 1), for example over a radial length “H” which can be between 5 and 15 mm, preferably between 7 and 13 mm.
- the invention is not limited to the sandblasting of the internal ends of the stator blades but at any end (internal or external) of any type of blade (stator, rotor, compressor, turbine or fan ).
- Figure 3 shows the next assembly step during which a conventional sandblasting mask 40 was positioned at the inner ends 26.2 of the blades.
- the mask 40 is shown here with a U-shaped section profile. It is made of steel and has a length of approximately 5 meters, from one end 41 to the other 42. Openings 43 are arranged to allow the passage of a portion of each dawn.
- the mask 40 is flexible and can be bent back on itself to form a strapping.
- Figure 3 thus shows the two ends 41 and 42 of the mask, which are separated from each other by a clearance "j" of a few millimeters. It is difficult to obtain zero clearance and an overlapping of the ends is not desirable: the blade tips would be obstructed and would remain unsanded, or difficulties in sliding the blades into the openings of the mask would appear. This gap must be filled to avoid damaging surfaces that you do not want to be sanded.
- Figure 4 shows a mask 50 according to the invention. This can be distinguished from the mask known from the prior art by at least one of the following properties: its geometry, its scale factor, its constituent material, its weight, its physical or surface properties, its coating.
- the mask 50 of the invention comprises a body 52 which extends from one end 54 to another 56.
- the ends 54, 56 are of distinct designs and can be described as male and female. They aim at the seamless assembly of two identical masks.
- identical we describe here by misuse of language masks which are able to be assembled one to the other, without this limiting them in terms of length, number of openings or constitution.
- the body 52 may have the shape of a particularly concave profile in the form of a gutter. It is pierced with one (or more) row(s) of openings 58 intended to be crossed by the blades.
- the openings 58 have a shape close to the profile of the blades (intrados and extrados).
- the mask 50 can be equipped at its ends 54, 56 with tabs 60, 62 projecting from the profile.
- the tabs 62 of one end 56 are adapted to be assembled with the tabs 60' of the other end 54' of another mask (and vice versa).
- fasteners passing through oblong holes in each of the lugs can be provided.
- the legs 60 are closer together than the legs 62.
- the end 56 can thus be considered as a female end.
- the geometry of the ends 54, 56 is such that when the masks are in position, no play appears and the sand does not cross any gap between the masks.
- the mask 50 is at least partially covered with a polyurea-based coating.
- the deposition of the coating can be done in one or more layers, for example applied by spraying with a spray gun. Coating is provided at least on surfaces exposed to sandblasting.
- the thickness of the coating can be between 0.1 and 4 mm, preferably between 0.5 and 3 mm, and in particular around 2 mm.
- the mask 50 can be flexible enough to be manipulated by hand with ease by operators when inserting the vanes into the apertures.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Eyeglasses (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE20215038A BE1029037B1 (fr) | 2021-01-21 | 2021-01-21 | Masque de sablage |
| PCT/EP2022/050838 WO2022157097A1 (fr) | 2021-01-21 | 2022-01-17 | Masque de sablage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4281250A1 true EP4281250A1 (fr) | 2023-11-29 |
Family
ID=74285162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22700656.6A Pending EP4281250A1 (fr) | 2021-01-21 | 2022-01-17 | Masque de sablage |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12589466B2 (fr) |
| EP (1) | EP4281250A1 (fr) |
| CN (1) | CN116802015A (fr) |
| BE (1) | BE1029037B1 (fr) |
| WO (1) | WO2022157097A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20260001092A1 (en) * | 2024-06-28 | 2026-01-01 | Chromalloy Gas Turbine Llc | Thermal spray boots and fixture |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3702496A (en) * | 1970-08-24 | 1972-11-14 | Charles Edward Stevens | Method for manufacturing masks to be used for ornamenting glass articles in an abrasive blasting process |
| US5998755A (en) * | 1997-12-19 | 1999-12-07 | United Technologies Corporation | Tooling assembly for positioning airfoils of a rotary machine |
| US6037004A (en) * | 1997-12-19 | 2000-03-14 | United Technologies Corporation | Shield and method for protecting an airfoil surface |
| FR2863191B1 (fr) * | 2003-12-04 | 2007-04-20 | Snecma Moteurs | Masque de protection pour le traitement de surface d'aubes de turbomachines |
| US20080199628A1 (en) * | 2007-02-15 | 2008-08-21 | United Technologies Corporation | Masking system using temperature-resistant hook and loop fasteners |
| FR2962357B1 (fr) * | 2010-07-09 | 2013-02-22 | Snecma | Procede de reparation ou de rechargement d'au moins une piece metallique |
| US8858167B2 (en) * | 2011-08-18 | 2014-10-14 | United Technologies Corporation | Airfoil seal |
| US9193111B2 (en) * | 2012-07-02 | 2015-11-24 | United Technologies Corporation | Super polish masking of integrally bladed rotor |
| US20150368786A1 (en) * | 2013-02-12 | 2015-12-24 | United Technologies Corporation | Metallic coating fixed stator tip treatment |
| US9956580B2 (en) * | 2014-02-14 | 2018-05-01 | United Technologies Corporation | Spray masking for rotors |
| US20180106154A1 (en) * | 2016-10-13 | 2018-04-19 | General Electric Company | Contoured bondcoat for environmental barrier coatings and methods for making contoured bondcoats for environmental barrier coatings |
| US11498132B2 (en) * | 2019-01-30 | 2022-11-15 | General Electric Company | Additive manufacturing systems and methods of calibrating for additively printing on workpieces |
-
2021
- 2021-01-21 BE BE20215038A patent/BE1029037B1/fr active IP Right Grant
-
2022
- 2022-01-17 EP EP22700656.6A patent/EP4281250A1/fr active Pending
- 2022-01-17 US US18/262,427 patent/US12589466B2/en active Active
- 2022-01-17 WO PCT/EP2022/050838 patent/WO2022157097A1/fr not_active Ceased
- 2022-01-17 CN CN202280011013.1A patent/CN116802015A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| BE1029037B1 (fr) | 2022-08-22 |
| WO2022157097A1 (fr) | 2022-07-28 |
| US20240075586A1 (en) | 2024-03-07 |
| BE1029037A1 (fr) | 2022-08-17 |
| CN116802015A (zh) | 2023-09-22 |
| US12589466B2 (en) | 2026-03-31 |
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