EP1808511A1 - Méthode pour rêvetir un compresseur - Google Patents
Méthode pour rêvetir un compresseur Download PDFInfo
- Publication number
- EP1808511A1 EP1808511A1 EP06000849A EP06000849A EP1808511A1 EP 1808511 A1 EP1808511 A1 EP 1808511A1 EP 06000849 A EP06000849 A EP 06000849A EP 06000849 A EP06000849 A EP 06000849A EP 1808511 A1 EP1808511 A1 EP 1808511A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating material
- compressor
- compressor component
- component
- 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.)
- Withdrawn
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 80
- 239000011248 coating agent Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims 1
- 238000003980 solgel method Methods 0.000 claims 1
- 239000003570 air Substances 0.000 description 16
- 239000007789 gas Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000001331 nose Anatomy 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 208000036071 Rhinorrhea Diseases 0.000 description 1
- 206010039101 Rhinorrhoea Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1254—Sol or sol-gel processing
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1262—Process of deposition of the inorganic material involving particles, e.g. carbon nanotubes [CNT], flakes
- C23C18/127—Preformed particles
Definitions
- the invention relates to a process for the surface coating of a component based on sol-gel, in particular a closed compressor impeller.
- Preferred field of application of the invention is the coating of media-contacted compressor components.
- undercut or channel-like closed components are particularly emphasized, since the invention primarily eliminates the problems that was previously associated with the coating of these components.
- a ceramic one Layer with organic components can be particularly effective here.
- Such layers are for example in the DE 197 14 949 A1 and the DE 199 52 040 A1 described.
- Important components of such a layer may be nanoscale silica particles or compounds from the group of oxides and hydroxides of the alkali and alkaline earth metals.
- these layers also have a particular hardness which protects the surface even after a long period of operation, thereby increasing the service life of the compressor.
- sol-gel technology Due to the mixture and reaction of various organic and inorganic materials, this results in a solution, which is also referred to as sol.
- This solution solidifies into a gel when the charged solvent evaporates and a reaction with the moisture from the environment takes place. Subsequent heat treatment solidifies this gel into a solid with amorphous to crystalline states.
- non-undercut surfaces particularly areas that are easily accessible
- sol-gel technology it is difficult to provide a layer with the desired function for non-accessible surfaces, for example in compressor runner flow channels.
- there are already sufficient difficulties on surfaces accessible from all sides to produce a uniform layer thickness it is almost impossible to access the poorly accessible areas.
- the difficulties begin with the application of the coating material in a suitable layer thickness and continue with the evaporation of the solvent and the solidification of the gel while absorbing the ambient humidity, since not all locations are equally exposed to the environment.
- a subsequent heat treatment at a non-optimal course of the preceding process steps leads to an unsatisfactory result, since even the different layer thicknesses lead to unacceptable errors, for example cracks in the surface.
- the invention has the object to provide a method for coating compressor components, which enables high quality and by means of which in particular undercut or channel-like closed components can be provided with acceptable cost with a coating ,
- the object of the invention provides that in a first step, a liquid coating material comprising nanoscale solids is applied to the compressor component, the compressor component is at least partially immersed in the coating material and rotated there about an axis, in a second step, the compressor component of the Coating material is removed and rotated about an axis, in a third step, the compressor component is exposed to a temperature of 50 ° C to 150 ° C and exposed in a fourth step, the compressor component for curing the coating under high vacuum at a temperature of up to 500 ° C. ,
- An essential feature of the method according to the invention is the partial immersion and rotation of the compressor component to be coated in the coating material, which initially ensures that even in an undercut or channel-like component all surfaces are wetted with the coating material. In this way, the basis for a complete coating is created. Also very important is the rotation of the component outside of the coating material (1), which not only ensures even wetting, but also for a substantially constant layer thickness on the surfaces. At the same time, turning outside the coating material also ensures gas circulation, so even at less exposed surfaces on the one hand, the required evaporation of the solvent can be done and on the other hand enough moisture from the ambient air can give rise to the desired gel on the surface as a precursor to the coating. The final heat treatment can thus create a gapless and even layer.
- the component to be coated has particularly acute-angled edges, it makes sense if these have been previously provided with the coating material, so that a sufficient layer thickness can be achieved as a result even at these locations.
- This coating can be carried out, for example, by means of dipping, spraying, flooding, spin-coating, rolling, brushing or else by means of a combination of these methods. If necessary, it is also possible to coat specially stressed areas separately in this manner, for example, entry edges on a compressor impeller.
- the component to be coated is immersed in the coating material with the radially outer regions prior to the first step.
- 20 mm immersion depth for a good result are sufficient.
- the compressor impeller rotating about the axis (4 revolutions per minute) is removed from the coating material and further rotated in the air for a certain time.
- the coating result is further improved if, in the second step, the compressor component is subjected to a gas flow, in particular air flow, with continued rotation.
- a gas flow in particular air flow
- the air flow ensures a more uniform distribution of the liquid coating material and on the other hand takes place on the one hand a faster but also more uniform evaporation of the solvent of the coating material and it forms from the sol evenly and quickly the gel, absorbing the moisture of the flowing air. Even less exposed surfaces are flowing around this sufficiently.
- a gas flow or air flow can also be applied; this procedure is advantageous in the case of very large compressor wheels in order to prevent the formation of drops and running noses.
- the compressor component is advantageously immersed first 20 mm rotating in the coating material and after one to ten Repetitions are taken out of the coating material, rotating about the axis, and after a certain time immersed in the coating material with rotation about halfway through the diameter, with a gas flow being blown through the inside of the compressor component.
- the compressor component is advantageously immersed first 20 mm rotating in the coating material and after one to ten Repetitions are taken out of the coating material, rotating about the axis, and after a certain time immersed in the coating material with rotation about halfway through the diameter, with a gas flow being blown through the inside of the compressor component.
- Experience has shown that between the two dips should be about one to three minutes, during which the compressor component outside of the coating material and can be rotated by the air, which prevents dripping and runny nose on the coating.
- This procedure according to the invention allows for the first time a high-quality coating of a closed compressor impeller.
- this drying process can be carried out by exposing the compressor component to a temperature of 50 ° C. for 15 minutes, a temperature of 75 ° C. for 15 minutes and a temperature of 100 ° C. for 60 minutes before the cooling of the workpiece is initiated. This gentle gradual temperature curve ensures a stress-free and therefore crack-free coating.
- the final heat treatment to cure the coating takes place between 300 and 500 ° C in a nitrogen atmosphere, in a partial vacuum or in a high vacuum (up to 10-5 mbar).
- a heating rate of 100 ° C / h is not exceeded and to keep the selected heat treatment temperature for 1 hour.
- a heat treatment in a high vacuum for one hour at 500 ° C the coating has a low surface energy at the same time high hardness.
- the input of the first step S1 is a coating material (1) for coating a compressor component 3 which is designed as a compressor impeller 2 consisting of a maximum of 70% by weight of ethanol, 29% by weight of etoxysilane containing alkyl groups, 7% by weight of tetraethyl silicate and its condensates and 2.5% by weight.
- % Sodium hydroxide diluted with an addition of 2-popanol is diluted to 28% by volume by adding 72% by volume of 2-propanol.
- the compressor impeller 2 is coated with the coating material 1 at particularly stressed points, in particular at acute-angled edges, for example at the entry edges, by means of a brush 4 in method step S1.2.
- the application of the coating material 1 is repeated several times, about 2 to 5 times, with between the individual jobs a three-minute air drying of the coating material 1 takes place on the compressor impeller 2.
- a step 1.3 the compressor impeller 2 is immersed with the radially outer region about 20 mm deep in the coating material 1 and rotated at a frequency of four revolutions per minute for about 45 seconds. In this way, the coating material 1 is thinly distributed only to the 20 mm deep immersed, difficult to coat surfaces and acute-angled edges.
- the process step S1.4 is initiated. The rotation prevents noses or dripping.
- step S1.4 the compressor impeller 2 is first connected to a flow guide 5, which allows a flow of the compressor impeller 2 with an air flow VAIR. Subsequently, the compressor impeller 2 is immersed in the solution of the coating material 1 until it is arranged approximately to the radial half in the solution.
- the air flow VAIR is switched on and permanently flows through the flow channels of the compressor impeller 2. With an angular speed of 4 revolutions per minute, the compressor impeller 2 is rotated through the coating material 1 for about 30 seconds. Under uniform rotational movement, the compressor impeller 2 is now lifted out of the coating material 1 at a speed v, so that after about 30 seconds - ie 2 revolutions - the compressor impeller 2 is no longer in the coating material 1
- the compressor impeller 2 is immersed under rotation in the solution of the coating material 1 until it is arranged approximately to the radial half in the solution.
- the air flow VAIR through the flow channels of the compressor wheel 2 takes place here permanently.
- the compressor impeller 2 With a Angular speed of 4 revolutions per minute, the compressor impeller 2 is now lifted at a speed v from the coating material 1, so that after about 30 seconds - ie two revolutions - the compressor impeller 2 is no longer in the coating material 1.
- step S2 the compressor impeller 2 is continued at an angular speed of 4 revolutions per minute and subjected to the air flow VAIR. dried for up to 3 minutes.
- a stepwise heat treatment wherein the compressor impeller 2 15 minutes exposed to a temperature of 50 ° C, 15 minutes at a temperature of 75 ° C and 60 minutes at a temperature of 100 ° C in a drying oven, not shown is.
- the compressor impeller 2 can be subjected to a final heat treatment under high vacuum and optionally subjected to further processing steps.
- a fourth step S4 it makes sense for the compressor component 3 to be exposed to a temperature of up to 500 ° C. under high vacuum for curing the coating.
- a precoating according to the method step denoted by S1.2 in step S1 of the method is expedient in particular in the region of the inlet 10, namely at the blade inlet edges 14 and in the region of the hub 12.
- precoating according to the method step denoted by S1.3 in step S1 of the method in the region of the outlet is expedient.
- Figure 2 shows the compressor impeller 2 with an axial inlet 10 and a radial outlet 11.
- the axis for rotating the compressor impeller 2 is temporarily inserted in the region of a hub 12 according to the structural arrangement of the axis of rotation in normal operation.
- Important is a coating in the region of the hub 12 and in the interior, ie on the surfaces of the flow channels 13, which extend from the inlet 10 to the outlet 11.
- the outer surfaces 14 need not be coated because deposition is neither likely nor interferes with operation.
- FIG. 3 shows a structure 20 which can be used to carry out the method according to the invention.
- a lift 30 On a lift 30 is an upwardly open container 31 with the coating material 1 as a solution.
- the compressor impeller 2 immersed in the solution of the coating material 1 and is rotatably mounted on an axis 33.
- a flow guide 5, which is embodied here as a plastic hood 6, is connected to the inlet 10 of the compressor impeller 2 and guides the air flow VAIR originating from a fan 34 into the component to be coated.
- the air flow VAIR exits from the openings of the radial outlet 11 again.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Dispersion Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06000849A EP1808511A1 (fr) | 2006-01-16 | 2006-01-16 | Méthode pour rêvetir un compresseur |
| PCT/EP2007/050070 WO2007082794A1 (fr) | 2006-01-16 | 2007-01-04 | Procédé pour appliquer un revêtement de surface sur un composant de compresseur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06000849A EP1808511A1 (fr) | 2006-01-16 | 2006-01-16 | Méthode pour rêvetir un compresseur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1808511A1 true EP1808511A1 (fr) | 2007-07-18 |
Family
ID=36123252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06000849A Withdrawn EP1808511A1 (fr) | 2006-01-16 | 2006-01-16 | Méthode pour rêvetir un compresseur |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1808511A1 (fr) |
| WO (1) | WO2007082794A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010089201A1 (fr) | 2009-02-05 | 2010-08-12 | Siemens Aktiengesellschaft | Procédé de réalisation d'une roue à aubes de compresseur fermée |
| FR3046812A1 (fr) * | 2016-01-20 | 2017-07-21 | Turbomeca | Roue de compresseur centrifuge ou mixte et etage de compression equipe d'une telle roue de compresseur |
| DE102021113999A1 (de) | 2021-05-31 | 2022-12-01 | MTU Aero Engines AG | Verfahren zum beschichten eines bauteils einer strömungsmaschine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5585136A (en) * | 1995-03-22 | 1996-12-17 | Queen's University At Kingston | Method for producing thick ceramic films by a sol gel coating process |
| DE19714949A1 (de) * | 1997-04-10 | 1998-10-15 | Inst Neue Mat Gemein Gmbh | Verfahren zum Versehen einer metallischen Oberfläche mit einer glasartigen Schicht |
| US6284682B1 (en) * | 1999-08-26 | 2001-09-04 | The University Of British Columbia | Process for making chemically bonded sol-gel ceramics |
| DE10163646A1 (de) * | 2001-12-21 | 2003-07-03 | Hermsdorfer Inst Tech Keramik | Oberflächenmodifizierter Werkstoffverbund und Verfahren zu seiner Herstellung |
-
2006
- 2006-01-16 EP EP06000849A patent/EP1808511A1/fr not_active Withdrawn
-
2007
- 2007-01-04 WO PCT/EP2007/050070 patent/WO2007082794A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5585136A (en) * | 1995-03-22 | 1996-12-17 | Queen's University At Kingston | Method for producing thick ceramic films by a sol gel coating process |
| DE19714949A1 (de) * | 1997-04-10 | 1998-10-15 | Inst Neue Mat Gemein Gmbh | Verfahren zum Versehen einer metallischen Oberfläche mit einer glasartigen Schicht |
| US6284682B1 (en) * | 1999-08-26 | 2001-09-04 | The University Of British Columbia | Process for making chemically bonded sol-gel ceramics |
| DE10163646A1 (de) * | 2001-12-21 | 2003-07-03 | Hermsdorfer Inst Tech Keramik | Oberflächenmodifizierter Werkstoffverbund und Verfahren zu seiner Herstellung |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010089201A1 (fr) | 2009-02-05 | 2010-08-12 | Siemens Aktiengesellschaft | Procédé de réalisation d'une roue à aubes de compresseur fermée |
| DE102009007648A1 (de) | 2009-02-05 | 2010-08-19 | Siemens Aktiengesellschaft | Verfahren zur Herstellung eines geschlossenen Verdichterlaufrades |
| FR3046812A1 (fr) * | 2016-01-20 | 2017-07-21 | Turbomeca | Roue de compresseur centrifuge ou mixte et etage de compression equipe d'une telle roue de compresseur |
| WO2017125662A1 (fr) * | 2016-01-20 | 2017-07-27 | Safran Helicopter Engines | Roue de compresseur centrifuge ou mixte et étage de compression équipé d'une telle roue de compresseur |
| DE102021113999A1 (de) | 2021-05-31 | 2022-12-01 | MTU Aero Engines AG | Verfahren zum beschichten eines bauteils einer strömungsmaschine |
| US20220380931A1 (en) * | 2021-05-31 | 2022-12-01 | MTU Aero Engines AG | Method for coating a component of a turbomachine |
| EP4098766A1 (fr) * | 2021-05-31 | 2022-12-07 | MTU Aero Engines AG | Procédé de revêtement d'un composant d'une turbomachine |
| US11939694B2 (en) * | 2021-05-31 | 2024-03-26 | MTU Aero Engines AG | Method for coating a component of a turbomachine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007082794A1 (fr) | 2007-07-26 |
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