EP1689910A2 - Einlaufbelag für gasturbinen sowie verfahren zur herstellung desselben - Google Patents
Einlaufbelag für gasturbinen sowie verfahren zur herstellung desselbenInfo
- Publication number
- EP1689910A2 EP1689910A2 EP04802724A EP04802724A EP1689910A2 EP 1689910 A2 EP1689910 A2 EP 1689910A2 EP 04802724 A EP04802724 A EP 04802724A EP 04802724 A EP04802724 A EP 04802724A EP 1689910 A2 EP1689910 A2 EP 1689910A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- inlet
- housing
- inlet lining
- plasma
- spraying
- 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- Withdrawn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 32
- 239000011248 coating agent Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000007751 thermal spraying Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 21
- 238000007750 plasma spraying Methods 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 229910052719 titanium Inorganic materials 0.000 description 7
- 229910052582 BN Inorganic materials 0.000 description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 238000004157 plasmatron Methods 0.000 description 5
- 229920000728 polyester Polymers 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000007550 Rockwell hardness test Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
- Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
- Y10T428/12063—Nonparticulate metal component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12937—Co- or Ni-base component next to Fe-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12944—Ni-base component
Definitions
- the invention relates to an inlet lining for gas turbines.
- the invention further relates to a method for producing an inlet lining according to the preamble of claim 8.
- Gas turbines such as aircraft engines, typically comprise several stages with rotating blades and fixed guide vanes, the rotor blades rotating together with a rotor, and the rotor blades and guide vanes being enclosed by a fixed housing of the gas turbine.
- This also includes the so-called sealing systems in aircraft engines. Maintaining a minimal gap between the rotating blades and the fixed housing of a high-pressure compressor is particularly problematic in aircraft engines. In the case of high-pressure compressors, the highest temperatures and temperature gradients occur, which makes it difficult to maintain the gap between the rotating blades and the stationary housing of the compressor.
- shrouds such as those used in turbines are not used in compressor rotor blades.
- blades in the compressor do not have a shroud.
- the ends or tips of the rotating blades are therefore exposed to a direct frictional contact with the housing when they are rubbed into the fixed housing.
- Such a rubbing of the tips of the rotor blades into the housing is caused by manufacturing tolerances when a minimal radial gap is set. Since the friction of the tips of the rotating blades removes the same material, an undesirable increase in gap can occur over the entire circumference of the housing and rotor.
- such blade tip armor is very expensive.
- An inlet lining for the housing of a high-pressure compressor is known from the prior art, the inlet lining being produced from a NiCrAI bentonite material.
- Such an inlet lining made of a nickel-chromium-aluminum-bentonite material is particularly suitable for rotor blades which are made of a nickel material or a nickel-based alloy.
- it has been shown that such an inlet lining is not suitable for blades which are made of a titanium material or a titanium-based alloy. Unarmored blade tips of blades based on a titanium material are damaged when using a NiCrAI bentonite material.
- the present invention is based on the problem of creating a novel inlet lining for gas turbines and a method for producing the same.
- the inlet lining for gas turbines according to the invention serves to seal a radial gap between a fixed housing of the gas turbine and rotating rotor blades.
- the inlet lining is attached to the housing and made from a CoNiCrAlY-hBN material.
- the inlet coating has a density and porosity, so that it has a relatively low Rockwell hardness, the Rockwell hardness being in a range from 20 to 60, in particular in a range from 35 to 50, and one in HR15Y scale is certain Rockwell hardness.
- Fig. 3 a schematic diagram to illustrate the method according to the invention.
- Fig. 1 shows a highly schematic of a rotating blade 10 of a gas turbine, which rotates in the direction of arrow 12 relative to a fixed housing 11.
- An inlet coating 13 is arranged on the housing 11.
- the inlet lining 13 serves to seal a radial gap between a tip or an end 14 of the rotating rotor blade 10 and the fixed housing 11
- the housing 11 shown schematically is, according to the preferred embodiment, the housing of a high-pressure compressor.
- the running-in covering must have an optimized abrasion behavior, i.e. good cleavage and removability of the abrasion must be ensured. Furthermore, no material transfer to the rotating blades 10 may take place.
- the inlet lining 13 must also have a low frictional resistance. Furthermore, the inlet coating 13 must not ignite when brushed against by the rotating blades 10.
- its erosion resistance, temperature resistance, thermal cycling resistance, corrosion resistance to lubricants and sea water are mentioned here by way of example. Fig.
- the run-in coating 13 is made from a cobalt (Co) nickel (Ni) chromium (Cr) aluminum (Al) yttrium (Y) material, mixed with hexagonal boron nitride (hBN).
- the CoNiCrAlY-hBN inlet coating 13 has a relatively low hardness.
- the Rockwell hardness of the run-in coating 13 is in a range from 20 to 60, preferably in a range from 35 to 50, the Rockwell hardness being determined on the HR15Y scale. This is achieved by incorporating pores in the CoNiCrAlY-hBN material. The porosity determines the density and thus the hardness of the run-in coating 13.
- FIG. 2 shows the schematic structure of the run-in coating 13.
- Particles 16 made of the Co-NiCrAlY alloy matrix together with particles 17 made of hexagonal boron nitride (hBN) form the run-in coating 13, with pores 18 and 17 being embedded between the particles.
- the number of pores 18 also determines the density of the inlet coating 13 and thus its Rockwell hardness.
- the CoNiCrAlY particles 16 form the tra- scaffolding.
- the Rockwell hardness of the inlet lining 13 according to the invention lies in a range between 20 and 60, preferably in a range between 35 and 50.
- the Rockwell hardness is determined on the HR15Y scale. This means that the Rockwell hardness test uses a half-inch (1/2 ") steel ball with a test force of 147 N (15 kp). The number 15 on the HR15Y hardness scale indicates the test force, the symbol Y on the HR15Y scale provides information about the indenter used.
- the test preload for this Rockwell hardness test method is preferably 29.4 N (3 kp). The details of the Rockwell hardness test are familiar to the expert addressed here.
- the inlet lining 13 for the housing of a high-pressure compressor from a CoNiCrAlY-hBN material, only hexagonal boron nitride (hBN) being used. It is further within the scope of the present invention to adjust the porosity and thus the density or hardness of the inlet covering so that the Rockwell hardness of the inlet covering 13 determined using the HR15Y scale is in a range from 20 to 60, preferably in a range from 35 to 50 lies.
- Such a run-in coating 13 is suitable both for blades based on a nickel material and for blades based on a titanium material, and blade tip armor can therefore be dispensed with for both types of blades.
- the cost of blade tip armor can therefore be saved. It is also advantageous that the running-in covering 13 according to the invention has good abrasion behavior as well as good erosion resistance and oxidation resistance. In addition, the inlet covering 13 has high thermal insulation properties, so that the overall thickness of the inlet covering 13 can be reduced. This also reduces the material costs and also saves weight. Overall, the performance ratio of the gas turbine can be optimized and the gas turbine can be operated with a lower fuel consumption.
- the inlet covering 13 according to the invention is produced by means of thermal spraying. In thermal spraying, a meltable material is melted and sprayed or sprayed in molten form onto a workpiece to be coated. Plasma spraying is preferably used as the thermal spraying method. The manufacturing method according to the invention is explained below with reference to FIG. 3.
- an arc is ignited between a cathode and an anode of a schematically illustrated plasma cartridge 19. This arc heats a plasma gas flowing through the plasmatron.
- Argon, hydrogen, nitrogen, helium or mixtures of these gases are used as plasma gases, for example. Heating the plasma gas creates a plasma jet that can reach temperatures of up to 20,000 ° C in the core.
- the powdery material used for coating here the above CoNiCrAlY material glued with hexagonal boron nitride (hBN) and mixed with polyester, is injected into the plasma jet using a carrier gas and at least partially melted there. Furthermore, the powder particles are accelerated to a high speed in the direction of the component by the plasma jet.
- the mixture of materials melted and accelerated in this way forms a spray jet 20, the spray jet 20 consisting on the one hand of the plasma jet and on the other hand of the particle jet of the melted material.
- the particles of the material impact with high thermal and kinetic energy on a surface 21 of the workpiece to be coated and form a coating there. Depending on the parameters of the spraying process, the desired coating properties are formed.
- polyester particles contained in the spray jet 20 are stored in a statistically distributed manner in the coating and subsequently burned out of the coating in order to leave the pores 18.
- the plasma spraying is carried out as follows: Between the plasmatron 19 and the surface 21 to be coated of the component to be coated, the largest possible rotational and translational relative speed is set. The rotational relative speed is shown in FIG. 3 with the arrow 22, the translational relative speed is shown with the arrow 23.
- the plasmatron 19 is shifted in translation and the component to be coated rotates relative to the plasmatron 19.
- the plasmatron 19 stands still and only the component to be coated is moved.
- the rotational movement ensures that the surface 21 to be coated is coated over the entire circumferential direction.
- the translational movement ensures that this coating is also carried out completely in the axial direction of the component.
- the plasma spraying is preferably carried out in a spray booth. From this spray booth, particles have to be continuously removed from the spray booth with the aid of an air flow, which is shown by arrows 24 in FIG. 3. It is within the meaning of the invention that the air flow in the direction of arrows 24 preferably runs approximately parallel to the spray direction of the spray jet 20. This ensures that all particles of the spray jet, that is to say the CoNiCrAlY-hBN layer, and also the polyester particles embedded in the layer reach the surface 21 to be coated in a defined manner.
- the spraying process is monitored and evaluated.
- the spraying process is monitored and evaluated online. In this way, online process control or online quality assurance of the coating process can be realized.
- the spray jet 20 which arises during plasma spraying is optically monitored by a camera which can be designed as a CCD camera.
- the image captured or determined by the camera is fed to an image processing system.
- properties of the optically monitored spray jet 20 are determined from the data recorded by the camera.
- Both properties of a plasma beam and properties of a particle beam are recorded by the camera.
- the camera preferably determines a luminance distribution of the plasma beam and a luminance distribution of the particle beam. From these luminance distributions, contour lines with the same luminous intensity are determined in the image processing system. Ellipses are then preferably inscribed in such contour lines with the same luminous intensity. This is done both for the plasma jet and for the particle beam.
- the ellipses inscribed in the contour lines have characteristic geometric parameters. These geometric parameters of the ellipses are semi-axes and the center of gravity of the ellipses. From these characteristic data of the ellipses, conclusions can be drawn unambiguously on the properties of the spray jet and ultimately on the properties of the coating that is produced during the spraying process.
- the geometric parameters of the ellipses determined from the optical monitoring of the spray jet, which correspond to properties of the spray jet, are compared with predetermined values for these properties or predetermined ellipse parameters.
- predetermined ellipse parameters can be determined by a correlation between the process parameters of the spraying process, the particle properties of the molten material and the properties of the resulting coating. If a deviation of the determined properties of the spray jet from the predetermined values for the properties is recognized, the spraying process can either be stopped or, depending on this deviation, can be regulated in such a way that the predetermined properties of the spray jet are achieved.
- the inlet covering 13 made of the CoNiCrAlY-hBN material with a Rockwell hardness on the HR15Y scale in the range between 20 to 60 is applied directly to the housing 11.
- an adhesion-promoting layer or an additional layer such as a titanium fire protection or thermal insulation layer, which can also be applied by plasma spraying, can also be arranged between the housing 11 and the inlet lining 13.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Coating By Spraying Or Casting (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10356953.7A DE10356953B4 (de) | 2003-12-05 | 2003-12-05 | Einlaufbelag für Gasturbinen sowie Verfahren zur Herstellung desselben |
| PCT/DE2004/002508 WO2005056878A2 (de) | 2003-12-05 | 2004-11-12 | Einlaufbelag für gasturbinen sowie verfahren zur herstellung desselben |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1689910A2 true EP1689910A2 (de) | 2006-08-16 |
Family
ID=34625576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04802724A Withdrawn EP1689910A2 (de) | 2003-12-05 | 2004-11-12 | Einlaufbelag für gasturbinen sowie verfahren zur herstellung desselben |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8309232B2 (de) |
| EP (1) | EP1689910A2 (de) |
| CA (1) | CA2547530C (de) |
| DE (1) | DE10356953B4 (de) |
| WO (1) | WO2005056878A2 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006028297A1 (de) * | 2006-06-20 | 2007-12-27 | Mtu Aero Engines Gmbh | Verfahren zur Reparatur von Einlaufbelägen |
| US20140094950A1 (en) * | 2007-03-01 | 2014-04-03 | MTU Aero Engines AG | Method for the production of an abradable spray coating |
| DE102007010049B4 (de) * | 2007-03-01 | 2011-01-13 | Mtu Aero Engines Gmbh | Verfahren zum Herstellen eines einlauffähigen Spritzbelags |
| DE102007056452A1 (de) * | 2007-11-23 | 2009-05-28 | Mtu Aero Engines Gmbh | Dichtsystem einer Turbomaschine |
| DE102009051554A1 (de) * | 2009-10-31 | 2011-05-05 | Mtu Aero Engines Gmbh | Verfahren zum Erzeugen eines Einlaufbelags an einer Strömungsmaschine |
| US8983287B2 (en) * | 2010-02-18 | 2015-03-17 | US Seismic Systems, Inc. | Fiber optic personnel safety systems and methods of using the same |
| US10226786B2 (en) | 2013-08-15 | 2019-03-12 | Gema Switzerland Gmbh | Powder pipe coating booth |
| DE112018000705T5 (de) | 2017-03-06 | 2019-11-14 | Cummins Filtration Ip, Inc. | Erkennung von echten filtern mit einem filterüberwachungssystem |
| US11118705B2 (en) | 2018-08-07 | 2021-09-14 | General Electric Company | Quick connect firewall seal for firewall |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817719A (en) * | 1971-07-09 | 1974-06-18 | United Aircraft Corp | High temperature abradable material and method of preparing the same |
| US4039296A (en) * | 1975-12-12 | 1977-08-02 | General Electric Company | Clearance control through a Ni-graphite/NiCr-base alloy powder mixture |
| US5047612A (en) * | 1990-02-05 | 1991-09-10 | General Electric Company | Apparatus and method for controlling powder deposition in a plasma spray process |
| US5536022A (en) * | 1990-08-24 | 1996-07-16 | United Technologies Corporation | Plasma sprayed abradable seals for gas turbine engines |
| US5196471A (en) * | 1990-11-19 | 1993-03-23 | Sulzer Plasma Technik, Inc. | Thermal spray powders for abradable coatings, abradable coatings containing solid lubricants and methods of fabricating abradable coatings |
| US5529809A (en) | 1994-02-07 | 1996-06-25 | Mse, Inc. | Method and apparatus for spraying molten materials |
| EP0837305A1 (de) | 1996-10-21 | 1998-04-22 | Sulzer Metco AG | Einrichtung sowie Verfahren zur Überwachung des Beschichtungsprozesses einer thermischen Beschichtungsvorrichtung |
| US5879753A (en) | 1997-12-19 | 1999-03-09 | United Technologies Corporation | Thermal spray coating process for rotor blade tips using a rotatable holding fixture |
| US6547522B2 (en) * | 2001-06-18 | 2003-04-15 | General Electric Company | Spring-backed abradable seal for turbomachinery |
| US6969231B2 (en) * | 2002-12-31 | 2005-11-29 | General Electric Company | Rotary machine sealing assembly |
| US7255929B2 (en) * | 2003-12-12 | 2007-08-14 | General Electric Company | Use of spray coatings to achieve non-uniform seal clearances in turbomachinery |
| US7165946B2 (en) * | 2004-06-21 | 2007-01-23 | Solar Turbine Incorporated | Low-mid turbine temperature abradable coating |
| US20070132193A1 (en) * | 2005-12-13 | 2007-06-14 | Wolfe Christopher E | Compliant abradable sealing system and method for rotary machines |
-
2003
- 2003-12-05 DE DE10356953.7A patent/DE10356953B4/de not_active Expired - Lifetime
-
2004
- 2004-11-12 US US10/581,147 patent/US8309232B2/en not_active Expired - Fee Related
- 2004-11-12 EP EP04802724A patent/EP1689910A2/de not_active Withdrawn
- 2004-11-12 CA CA2547530A patent/CA2547530C/en not_active Expired - Fee Related
- 2004-11-12 WO PCT/DE2004/002508 patent/WO2005056878A2/de not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2005056878A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2547530A1 (en) | 2005-06-23 |
| WO2005056878A2 (de) | 2005-06-23 |
| US20080282933A1 (en) | 2008-11-20 |
| WO2005056878A3 (de) | 2005-11-03 |
| CA2547530C (en) | 2015-01-27 |
| DE10356953A1 (de) | 2005-06-30 |
| WO2005056878A8 (de) | 2005-08-18 |
| US8309232B2 (en) | 2012-11-13 |
| DE10356953B4 (de) | 2016-01-21 |
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