EP4058240A1 - Procédé de compactage d'un revêtement anti-corrosion - Google Patents
Procédé de compactage d'un revêtement anti-corrosionInfo
- Publication number
- EP4058240A1 EP4058240A1 EP20807837.8A EP20807837A EP4058240A1 EP 4058240 A1 EP4058240 A1 EP 4058240A1 EP 20807837 A EP20807837 A EP 20807837A EP 4058240 A1 EP4058240 A1 EP 4058240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compacting
- water
- particles
- corrosion coating
- support
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- 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
- F01D25/007—Preventing corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/546—No clear coat specified each layer being cured, at least partially, separately
-
- 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
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C11/00—Selection of abrasive materials or additives for abrasive blasts
-
- 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
- F01D25/005—Selecting particular materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/28—Metals
-
- 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
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/288—Protective coatings for blades
-
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
-
- 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
- F05D2230/90—Coating; Surface treatment
-
- 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
- F05D2240/60—Shafts
-
- 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
- F05D2260/00—Function
- F05D2260/95—Preventing corrosion
Definitions
- TITLE PROCESS FOR COMPACTING AN ANTI-CORROSION COATING
- the technical field of the invention is that of the protection of parts subjected to corrosion phenomena.
- the technical field of the invention relates more particularly to the protection of steel parts by the application of a protective coating to various corrosive or oxidative anti-corrosion elements, such as an inorganic paint.
- the invention has a particularly advantageous application in the field of turbomachines, in particular for the protection of compressor shafts and turbine shafts of a turbomachine.
- paints based on a mineral binder have therefore been studied as substitution paints to replace paints comprising chromium trioxide. All these paints having a composition based on a mineral binder or hybrid and metallic particles, such as aluminum. After application, these paints, with a mineral or hybrid binder, must undergo a high temperature polymerization cycle to cure the paint film.
- a final specificity, linked to the use of these paints, consists in carrying out a compacting operation of the paint layer, so as to bring the metal particles on the surface into contact to make the paint layer dense and electrically conductive, without degrading the physical integrity and the cosmetic aspect of the painting. Thanks to compaction, the paint acquires efficient anodic sacrificial properties to fight against corrosion.
- this compacting step is a decisive and obligatory step for replacement paints without chromium trioxide, this step ensuring the good anticorrosion properties of the coating.
- This compacting step is conventionally carried out by spraying corundum (sandblasting), by spraying glass beads, by polishing or by raising the temperature.
- the compacting medium used (corundum or glass ball), of high hardness (between 8 and 9.5 on the MOHS scale), can become encrusted on the surface of the paint layer and be released later, for example during operation.
- This situation is particularly troublesome, when the parts coated with these paints are parts of a turbomachine, such as, for example, turbine or compressor shafts, since the rejection of the compacting medium during operation could damage certain parts of the turbomachine.
- the invention provides a new method of compacting an anti-corrosion coating making it possible to remedy the drawbacks mentioned above and making it possible to increase the protection against corrosion of the parts while overcoming the problems of releasing the compacting media when using the parts.
- the invention relates to a method for compacting an anti-corrosion coating characterized in that it comprises a step of spraying water-soluble particles.
- the compaction process according to the invention can have one or more additional characteristics among the following, considered individually or according to all the technically possible combinations: the water-soluble particles projected during the step of projection have a hardness less than 9 on the Mohs scale; the water-soluble particles projected during the projection step have a density of the order of 2.2 g / cm3; the water-soluble particles projected during the spraying step are particles based on sodium hydrogencarbonate; the water-soluble particles projected during the projection step incorporate an additive to prevent the agglomeration of the water-soluble particles to one another; the water-soluble particles projected during the spraying step have a particle size of between 70 and 200 ⁇ m; the step of spraying water-soluble particles is carried out at a pressure of between 1, 5 and 4 bars, and preferably of 2 bars; the step of spraying water-soluble particles is carried out with two passes
- the invention also relates to a method of applying a surface treatment to a support characterized in that it comprises: a step of applying a first layer of paint based on metal particles and of an inorganic or hybrid binder; a step of bringing said support to temperature; a step of compacting said first layer of paint based on metal particles and on a mineral or hybrid binder according to the compacting method according to the invention.
- the invention also relates to a method of applying a surface treatment to a support characterized in that it comprises successively: a step of applying a first layer of paint based on metal particles and an inorganic or hybrid binder; a first step of bringing said support to temperature; a step of applying a second coat of paint based on metal particles and a mineral or hybrid binder; a second step of bringing said support to temperature; a step of compacting said layers of paint based on metal particles and on a mineral or hybrid binder according to the compacting process according to the invention.
- the support is a metal part.
- the support is a high alloy steel part.
- the subject of the invention is also a turbomachine part characterized in that it comprises an anti-corrosion coating applied by the method of applying a surface treatment according to the invention.
- Figure 1 illustrates a block diagram illustrating the main steps of the compaction process according to the invention.
- Figure 2 is a simplified representation of a particle projection means used in the first step of the compaction process according to the invention.
- FIG. 3 is a photograph taken by means of a scanning electron microscope illustrating the surface of a part coated with a mineral paint with aluminum particles before compaction.
- FIG. 4 is a photograph taken by means of a scanning electron microscope illustrating the surface of the part coated with a mineral paint with aluminum particles illustrated in FIG. 4 after compaction by the compaction method according to the invention.
- FIG. 5 illustrates a block diagram illustrating the different stages of applying an anti-corrosion coating to a part of a turbomachine.
- FIG 1 illustrates a block diagram illustrating the main steps of the compaction process 100 according to the invention.
- the compaction method 100 allows the compaction of an anti-corrosion coating 110 applied to a support 120, for example a steel part.
- the compaction method 100 according to the invention is particularly advantageous for the compaction of an anticorrosion coating 110 applied to a part made of high mechanical strength steel, or high alloy steel.
- the anticorrosion coating 110 is for example a high temperature mineral paint having an inorganic or hybrid binder and metal particles such as aluminum particles.
- the compaction method 100 according to the invention is advantageously a method of compacting an anti-corrosion coating 110 of a part 120 of a turbomachine.
- the compaction method 100 consists in projecting water-soluble particles 130 on the anticorrosion coating layer 110 to compact the latter and increase its anticorrosion properties.
- the particles 130 used in the compaction process 100 according to the invention are particles having a relatively low hardness, that is to say less than 9 on the Mohs scale, and preferably less than 4.
- the compaction method 100 according to the invention consists in projecting water-soluble particles 130 on the anti-corrosion coating layer 110 of the treated part 120.
- FIG. 1 illustrates an exemplary representation of a projection means 150 used for the compaction of the anticorrosion coating 110 according to the invention.
- the projection means 150 is for example a pressure or vacuum sandblaster.
- the sandblaster conventionally has a storage tank 151 containing the water-soluble particles 130 to be projected and a projection member 152 connected to said storage tank 151 via a supply duct 153.
- the water-soluble particles 130 are, for example, particles based on sodium hydrogencarbonate, also called sodium bicarbonate or sodium bicarbonate.
- the water-soluble sodium hydrogencarbonate particles 130 advantageously have a hardness of 2.5 on the Mohs scale and a solubility of between 80 and 100 g / L in water at 20 ° C.
- the water-soluble particles 130 have a size between 70 ⁇ m and 200 ⁇ m.
- the water-soluble particles 130 based on sodium hydrogencarbonate have a density of the order of 2.2 g / cm3.
- an additive is added to the water-soluble particles 130 in order to avoid the agglomeration of the particles 130 to each other during storage and / or during spraying.
- the working pressure used for the projection of the water-soluble particles 130 is of the order of 2 bars. This pressure is continuous and regulated at the level of the projection member 152, for example via a pressure gauge (not shown) having a pressure adjustment means.
- the dosage of the projected quantity of water-soluble particles 130 is based on a fixed calibration (for example determined by the size of the projection nozzle) and on the pressure difference between the storage tank 151, storing the particles 130, and the working pressure used.
- the water-soluble particles 130 are projected at an angle of between 45 ° and 90 ° relative to the anticorrosion coating 110 of the part 120 to be treated.
- This projection step 101 may include one or more water-soluble particles projection passes 130.
- the different passes are carried out with the same projection angle or with a different projection angle (for example a pass with an angle of 45 ° relative to the support and a pass at an angle of 90 ° to the support).
- the compacting method 100 according to the invention may also optionally include a step of rinsing 102 of the part 120 to remove residues from the projection media. This rinsing step 102 ensures the removal of the residual water-soluble particles 130 by water solubility of the sodium hydrogencarbonate particles.
- this rinsing step 102 is carried out with distilled water.
- This rinsing step 102 is an optional step because, given the low hardness of the water-soluble particles 130 of sodium hydrogencarbonate (hardness of 2.5 on the Mohs scale), the water-soluble particles 130 are weakly, or even hardly any, embedded in the layer of the anticorrosion coating 110 and the particles are easily removed.
- This rinsing step 102 is particularly advantageous to ensure the elimination of any water-soluble particles 130 encrusted in the layer of anticorrosion coating 110, in particular for sensitive parts, such as turbine shafts or turbomachine compressor shafts.
- Photographs taken by means of a scanning electron microscope make it possible to demonstrate the densification of the anticorrosion coating 110 after implementation of the compaction process 100 according to the invention.
- FIG 3 is a photograph taken by means of a scanning electron microscope illustrating the surface of a part coated with a mineral paint with aluminum particles before compaction.
- FIG 4 is a photograph taken by means of a scanning electron microscope illustrating the surface of the part coated with a mineral paint with aluminum particles illustrated in [Fig 4] after compaction by the process of compaction 100 according to the invention.
- the anticorrosion coating 110 After compacting, the anticorrosion coating 110 conventionally has a uniform, shiny and smooth appearance.
- the electrical resistance of the compacted coating is less than 5 Ohms, or even less than 1 Ohm.
- the loss of thickness of the coating layer as a result of the compacting operation is limited and less than 10 ⁇ m.
- the method of compacting 100 of an anticorrosion coating 110 according to the invention allows: to contact the aluminum particles of mineral paints, based on an inorganic binder and aluminum particles, used as coating anti corrosion ; to densify the surface of the anticorrosion coating; to make the electrical resistance of the coating less than 5 Ohms, or even less than 1 Ohm; - increase the corrosion and temperature resistance of steel parts; not to degrade the adhesion of the compacted paint.
- the method 10 for compacting an anti-corrosion coating 110 by spraying water-soluble particles 130 according to the invention makes it possible to easily treat parts of complex geometry, of large dimensions.
- water-soluble particles 130 such as sodium bicarbonate particles
- water-soluble particles 130 also brings a certain interest during its handling, its transport, because of its safety and its biodegradability.
- the compaction method 100 described above fits perfectly into an overall process of surface treatment of a steel part 120 by applying an anti-corrosion coating 110.
- the invention also relates to a method of applying a surface treatment to a support 120, such as a steel part, comprising in particular: a step of applying a layer of paint mineral: a drying step; a step of compacting the layer of mineral paint according to the compacting method 100 described above.
- a surface treatment such as an anti-corrosion coating 110 formed by a high-grade mineral paint. temperature, on a steel part 120 of a turbomachine.
- the method of applying 300 a surface treatment of a turbomachine part 120 comprises: a step 301 of degreasing the surface of said part to be treated 120; an optional step 302 of masking certain areas of the part 120 which must not receive paint; a step 303 of sanding said part 120 to promote the adhesion of the paint to the surface of the part to be treated; a step 304 of applying a first layer of mineral paint; a step 305 of desolvation and drying of said first layer of mineral paint; a step 306 for bringing said part 120 to temperature (for example 30 min minimum at 340 ° C.) in order to polymerize said first layer of mineral paint; a step 307 of applying a second layer of mineral paint; a step 308 of desolvation and drying of said second layer of mineral paint; a step 309 for bringing said part 120 to temperature (for example 30 min minimum at 340 ° C.) in order to polymerize said second layer of mineral paint; a step 310 of compacting said layers of paint by
- the turbomachine part is a turbine shaft or a compressor shaft.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Coating By Spraying Or Casting (AREA)
- Paints Or Removers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1912206A FR3102694B1 (fr) | 2019-10-30 | 2019-10-30 | Procede de compactage d’un revetement anti-corrosion |
| PCT/FR2020/051946 WO2021084205A1 (fr) | 2019-10-30 | 2020-10-28 | Procédé de compactage d'un revêtement anti-corrosion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4058240A1 true EP4058240A1 (fr) | 2022-09-21 |
| EP4058240B1 EP4058240B1 (fr) | 2026-02-11 |
Family
ID=69572132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20807837.8A Active EP4058240B1 (fr) | 2019-10-30 | 2020-10-28 | Procédé de compactage d'un revêtement anti-corrosion |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12465946B2 (fr) |
| EP (1) | EP4058240B1 (fr) |
| CN (1) | CN114667203A (fr) |
| FR (1) | FR3102694B1 (fr) |
| WO (1) | WO2021084205A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3128471B1 (fr) | 2021-10-26 | 2024-02-09 | Safran Aircraft Engines | Procédé de formation d’un revêtement de protection cathodique sur une pièce de turbomachine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012156A (ja) * | 2007-07-09 | 2009-01-22 | Yamanashi Prefecture | ピーニング方法 |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036602A (en) * | 1975-11-26 | 1977-07-19 | Chromalloy American Corporation | Diffusion coating of magnesium in metal substrates |
| GB2175824A (en) * | 1985-05-29 | 1986-12-10 | Barry Rene Christopher Paul | Producing composite metal articles |
| US5123206A (en) * | 1987-12-04 | 1992-06-23 | Whitemetal, Inc. | Wet abrasive blasting method |
| NZ237596A (en) * | 1990-04-06 | 1993-03-26 | Church & Dwight Co Inc | Method of removing coatings by blasting with high velocity crystalline bicarbonate particles in a fluid stream |
| US5308404A (en) * | 1993-01-21 | 1994-05-03 | Church & Dwight Co., Inc. | Less aggressive blast media formed from compacted particles |
| WO1997004889A1 (fr) * | 1995-07-27 | 1997-02-13 | Henkel Corporation | Procedes permettant d'enlever des residus de peinture se trouvant sur des surfaces |
| US6174225B1 (en) * | 1997-11-13 | 2001-01-16 | Waste Minimization And Containment Inc. | Dry ice pellet surface removal apparatus and method |
| BE1011879A3 (fr) * | 1998-04-16 | 2000-02-01 | Norbert De Schaetzen Van Brien | Procede de nettoyage par projection de particules et appareil pour la mise en oeuvre de ce procede. |
| WO2001015866A1 (fr) * | 1999-09-01 | 2001-03-08 | Siemens Aktiengesellschaft | Procede et dispositif de traitement de surface d'un element |
| EP1598444B1 (fr) * | 2004-05-06 | 2006-11-15 | Siemens Aktiengesellschaft | Procédé d'ajustement par projection de carboglace de la conductivité électrique d'un revêtement d'un composant d'une machine, cette conductivité électrique étant variable avec la pression |
| DE102004050474A1 (de) * | 2004-10-16 | 2006-04-20 | Mtu Aero Engines Gmbh | Verfahren zur Herstellung eines mit einer Verschleißschutzbeschichtung beschichteten Bauteils |
| US7601400B2 (en) * | 2005-03-10 | 2009-10-13 | General Electric Company | Liquid electrostatic coating composition comprising corrosion resistant metal particulates and method for using same |
| US7604867B2 (en) | 2005-12-20 | 2009-10-20 | General Electric Company | Particulate corrosion resistant coating composition, coated turbine component and method for coating same |
| PL2132001T3 (pl) * | 2007-02-23 | 2015-06-30 | Tgc Tech Beteiligungsgesellschaft Mbh | Sposób szlifowania i polerowania materiałów drewnopochodnych |
| DE102009015160A1 (de) * | 2009-03-26 | 2010-09-30 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Herstellung eines beschicht- und/oder fügbaren Blechformteils mit einer Korrosionsschutzbeschichtung |
| US9272391B2 (en) * | 2011-05-25 | 2016-03-01 | Nike, Inc. | Sodium bicarbonate puck cleaning and painting |
| US8802190B2 (en) * | 2011-07-11 | 2014-08-12 | Honda Motor Co., Ltd. | Weldable corrosion resistant coating for steel and method of manufacture |
| JP2013059711A (ja) * | 2011-09-12 | 2013-04-04 | Japan Display East Inc | 洗浄方法 |
| FR2991216B1 (fr) * | 2012-05-29 | 2014-07-04 | Snecma | Procede de compactage de peintures anodiques avec collision des jets de sablage |
| US9394448B2 (en) * | 2012-11-09 | 2016-07-19 | Praxair S.T. Technology, Inc. | Chromate-free ceramic coating compositions |
| FR3010013B1 (fr) * | 2013-09-05 | 2015-10-09 | Foued Rhziel | Dispositif de maintien et de fixation, personnel et amovible, pour se tenir a une barre d'appui |
| WO2015074765A1 (fr) * | 2013-11-25 | 2015-05-28 | Jürgen Von Der Ohe | Procédé de fabrication d'un agent de sablage, procédé de sablage, agent de sablage et dispositif de fabrication de l'agent de sablage |
| FR3040013B1 (fr) * | 2015-08-13 | 2018-02-23 | Safran Aircraft Engines | Procede de compactage d'une peinture anti-corrosion d'une piece de turbomachine |
| FR3044946B1 (fr) * | 2015-12-14 | 2018-01-12 | Safran Aircraft Engines | Revetement abradable a densite variable |
| DE102016011808B4 (de) * | 2016-09-30 | 2024-05-02 | Messer Se & Co. Kgaa | Verfahren zum Behandeln einer Oberfläche mit einem Strahlmittel |
| EP3459474B1 (fr) * | 2017-09-20 | 2019-12-18 | aesthetiCare GmbH | Appareil de traitement de surface d'un tissu aumoyen de particules de glace carbonique, son procédé de fonctionnement et procédé de fabrication des particules de glace carbonique médicale |
-
2019
- 2019-10-30 FR FR1912206A patent/FR3102694B1/fr active Active
-
2020
- 2020-10-28 US US17/773,389 patent/US12465946B2/en active Active
- 2020-10-28 WO PCT/FR2020/051946 patent/WO2021084205A1/fr not_active Ceased
- 2020-10-28 CN CN202080076018.3A patent/CN114667203A/zh active Pending
- 2020-10-28 EP EP20807837.8A patent/EP4058240B1/fr active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012156A (ja) * | 2007-07-09 | 2009-01-22 | Yamanashi Prefecture | ピーニング方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4058240B1 (fr) | 2026-02-11 |
| CN114667203A (zh) | 2022-06-24 |
| FR3102694B1 (fr) | 2022-06-03 |
| US12465946B2 (en) | 2025-11-11 |
| FR3102694A1 (fr) | 2021-05-07 |
| WO2021084205A1 (fr) | 2021-05-06 |
| US20220410209A1 (en) | 2022-12-29 |
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