EP1957756A1 - Verfahren zum herstellen eines einlaufbelags - Google Patents
Verfahren zum herstellen eines einlaufbelagsInfo
- Publication number
- EP1957756A1 EP1957756A1 EP06828577A EP06828577A EP1957756A1 EP 1957756 A1 EP1957756 A1 EP 1957756A1 EP 06828577 A EP06828577 A EP 06828577A EP 06828577 A EP06828577 A EP 06828577A EP 1957756 A1 EP1957756 A1 EP 1957756A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat treatment
- inlet
- coating
- temperature
- run
- 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
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000011248 coating agent Substances 0.000 title claims abstract description 18
- 238000000576 coating method Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 38
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000004804 winding Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000007751 thermal spraying Methods 0.000 claims description 3
- 241000792859 Enema Species 0.000 claims description 2
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 claims description 2
- 239000007920 enema Substances 0.000 claims description 2
- 229940095399 enema Drugs 0.000 claims description 2
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910001868 water Inorganic materials 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229940079842 sodium cumenesulfonate Drugs 0.000 description 1
- QEKATQBVVAZOAY-UHFFFAOYSA-M sodium;4-propan-2-ylbenzenesulfonate Chemical compound [Na+].CC(C)C1=CC=C(S([O-])(=O)=O)C=C1 QEKATQBVVAZOAY-UHFFFAOYSA-M 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
- C23C4/18—After-treatment
-
- 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
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
- F01D11/122—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with erodable or abradable 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
-
- 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
- F05D2230/40—Heat treatment
Definitions
- the invention relates to a method for producing an inlet covering according to the preamble of claim 1.
- Turbomachines such as gas turbines, typically comprise a plurality of rotating blades and a plurality of stationary guide blades, the blades rotating together with a rotor, and the blades and the guide blades being enclosed by a fixed housing.
- This also includes the so-called sealing systems. Maintaining a minimal gap between the rotating blades and the fixed housing of a high-pressure compressor is particularly problematic in turbomachinery. With high-pressure compressors, high absolute temperatures and temperature gradients occur, which makes it difficult to maintain the gap between the rotating blades and the stationary housing.
- shrouds such as those used in turbine blades are not used in compressor blades.
- blades in the compressor do not have a shroud. Therefore, the ends or tips of the rotor blades are 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 frictional contact of the tips of the rotor blades removes the same material, an undesirable gap enlargement can occur over the entire circumference of the housing and rotor. To avoid this, it is already known from the prior art to armor the ends or tips of the rotor blades with a hard coating or with abrasive particles.
- the present invention is based on the problem of creating a novel method for producing an inlet covering.
- the inlet covering provided is subjected to a heat treatment in order to improve its ability to run in.
- the inlet lining produced according to the invention is preferably used in compressors or in low-pressure turbines.
- the heat treatment pre-embosses the hardening and oxidation of the metallic matrix, which ultimately sets the desired hardness of the running-in covering and improves and stabilizes the running ability of the running-in covering. Due to the heat treatment of the provided run-in covering, the same is subjected to an artificial aging process, so to speak, so that it has a stable run-in behavior in later operation.
- the heat treatment is carried out at a process temperature which is above the temperature to which the inlet lining is exposed to the maximum during operation of the turbomachine.
- the process temperature of the heat treatment is 50 0 C to 200 0 C above the maximum operating temperature of the inlet lining.
- the process duration of the heat treatment is between 1 hour and 200 hours.
- the inlet coating provided is rinsed in a chemical solution or a chemical bath before the heat treatment. As a result, the process time of the subsequent heat treatment can be shortened.
- the present invention relates to a method for producing an inlet lining on a stator-side component of a turbomachine, in particular on a housing section of a gas turbine aircraft engine.
- the inlet covering provided is subjected to a heat treatment in order to optimize the ability to shrink.
- the heat treatment is carried out at a process temperature which is above the temperature to which the inlet coating is maximally exposed during operation of the turbomachine.
- the hardening and oxidation of the metallic matrix can be pre-embossed in the case of run-in coverings made of a metallic material, that is to say in the case of metallic run-in coverings, so that the run-in covering has an improved and stabilized running-in ability.
- the hardness of the metallic inlet linings is optimized by the heat treatment, which is carried out at a process temperature above the maximum operating temperature of the inlet lining, in such a way that the inlet lining can be shrunk even at high operating temperatures and maintains this property over the operating time of the turbomachine.
- the hardness of the inlet lining that arises during the heat treatment is determined by a superimposition of two effects, namely the hardening and the oxidation of the inlet lining, whereby the hardening of the inlet lining increases with increasing duration of the heat treatment, while the oxidation reduces the hardness of the inlet lining.
- the hardness of the running-in surface can be set precisely by specifically selecting the duration of the heat treatment.
- a porous inlet covering made of a NiCrAl material or of a CoNiCrAlY-hBN material is preferably provided as a metallic inlet covering by thermal spraying, which is then subjected to the heat treatment.
- the process temperature of the heat treatment is to 5O 0 C to 200 0 C, preferably 100 ° C to 15O 0 C, above the maximum operating temperature of the run-in coating. If, during operation of the turbomachine, the running-in coating is exposed to operating temperatures between 450 0 C and 650 0 C, for example, the heat treatment is preferably carried out at a process temperature between 600 0 C and 800 0 C. At a maximum operating temperature of 65O 0 C, the heat treatment is preferably carried out at 75O 0 C.
- the heat treatment of the running-in covering provided is carried out during a process time between 1 hour and 200 hours, preferably during a process time between 2 hours and 20 hours.
- the process temperature of the heat treatment of the inlet lining of the respective stage is adapted to the corresponding maximum operating temperature.
- a e.g. subjected to heat treatment in the manufacture of new parts or in the repair of the running-in covering after the provision thereof is carried out at a process temperature which is above the maximum operating temperature of the inlet coating and is carried out for a period of time adapted to the respective temperature.
- the run-in covering provided is subjected to an artificial aging process, which can ultimately optimize and stabilize its running ability.
- a provided, porous inlet coating is rinsed in a chemical solution before the heat treatment. After the winding, drying and then heat treatment take place, the solution remaining in the pores of the inlet coating after drying due to capillary effects.
- the process time of the subsequent heat treatment can be shortened by the winding, since the solution particularly supports the oxidation of the metallic matrix.
- the winding can e.g. in a solution of demineralized water and sodium hydroxide or sodium hydroxide solution.
- the winding can be carried out in diethylene glycol monobutyl ether or in a solution of sodium hydroxide and monophenyl glycol and sodium cumene sulfonate.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Lubricants (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005058324A DE102005058324A1 (de) | 2005-12-07 | 2005-12-07 | Verfahren zum Herstellen eines Einlaufbelags |
| PCT/DE2006/002122 WO2007065403A1 (de) | 2005-12-07 | 2006-11-30 | Verfahren zum herstellen eines einlaufbelags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1957756A1 true EP1957756A1 (de) | 2008-08-20 |
| EP1957756B1 EP1957756B1 (de) | 2011-05-04 |
Family
ID=37852354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06828577A Not-in-force EP1957756B1 (de) | 2005-12-07 | 2006-11-30 | Verfahren zum herstellen eines einlaufbelags |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20110020560A1 (de) |
| EP (1) | EP1957756B1 (de) |
| JP (1) | JP2009518571A (de) |
| AT (1) | ATE508254T1 (de) |
| CA (1) | CA2631362A1 (de) |
| DE (2) | DE102005058324A1 (de) |
| WO (1) | WO2007065403A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008005480A1 (de) * | 2008-01-23 | 2009-07-30 | Rolls-Royce Deutschland Ltd & Co Kg | Gasturbine mit einem Verdichter mit Einlaufschicht mit luftaushärtendem Material |
| DE102008005479A1 (de) * | 2008-01-23 | 2009-07-30 | Rolls-Royce Deutschland Ltd & Co Kg | Gasturbine mit einem Verdichter mit flüssigkeitsbeaufschlagter Einlaufschicht |
| US8257016B2 (en) | 2008-01-23 | 2012-09-04 | Rolls-Royce Deutschland Ltd & Co Kg | Gas turbine with a compressor with self-healing abradable coating |
| ES2700788T3 (es) * | 2012-04-04 | 2019-02-19 | MTU Aero Engines AG | Sistema de sellado para una turbomáquina |
| EP2876172A1 (de) * | 2013-11-26 | 2015-05-27 | MTU Aero Engines GmbH | Verfahren zur Herstellung und Reparatur von Bauteilen einer Strömungsmaschine aus Nickelbasis-Superlegierungen |
| US20250243773A1 (en) * | 2024-01-31 | 2025-07-31 | Rtx Corporation | Ceramic abradable coating with controllable hardness and abradability |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2742224A (en) * | 1951-03-30 | 1956-04-17 | United Aircraft Corp | Compressor casing lining |
| US3010843A (en) * | 1958-04-28 | 1961-11-28 | Gen Motors Corp | Abradable protective coating for compressor casings |
| FR2049448A5 (de) * | 1969-06-10 | 1971-03-26 | Onera (Off Nat Aerospatiale) | |
| US4049428A (en) * | 1971-03-25 | 1977-09-20 | Union Carbide Corporation | Metal porous abradable seal |
| US3839234A (en) * | 1973-01-26 | 1974-10-01 | C Roscoe | Multi-purpose cleaning concentrate |
| EP0187612B1 (de) * | 1984-12-24 | 1990-09-12 | United Technologies Corporation | Abschleifbare Dichtung mit besonderem Erosionswiderstand |
| US5536022A (en) * | 1990-08-24 | 1996-07-16 | United Technologies Corporation | Plasma sprayed abradable seals for gas turbine engines |
| US5391234A (en) * | 1991-08-05 | 1995-02-21 | Henkel Corporation | Cleaning or stripping composition and method |
| JPH06128036A (ja) * | 1992-10-16 | 1994-05-10 | Shin Etsu Chem Co Ltd | 半導体用炭化珪素質部材 |
| US5792562A (en) * | 1995-01-12 | 1998-08-11 | Applied Materials, Inc. | Electrostatic chuck with polymeric impregnation and method of making |
| JPH09328376A (ja) * | 1996-06-06 | 1997-12-22 | Sumitomo Metal Ind Ltd | 半導体製造装置用セラミックス部材の製造方法 |
| US5951892A (en) * | 1996-12-10 | 1999-09-14 | Chromalloy Gas Turbine Corporation | Method of making an abradable seal by laser cutting |
| US6089825A (en) * | 1998-12-18 | 2000-07-18 | United Technologies Corporation | Abradable seal having improved properties and method of producing seal |
| JP3283238B2 (ja) * | 1999-01-06 | 2002-05-20 | 株式会社東芝 | 窒化ケイ素系セラミックス部品およびその製造方法 |
| US6383658B1 (en) * | 1999-11-18 | 2002-05-07 | General Electric Company | Thermally sprayed coatings having an interface with controlled cleanliness |
| WO2001044533A1 (en) * | 1999-12-15 | 2001-06-21 | Pratt & Whitney Canada Corp. | Abradable coatings |
| GB2397307A (en) * | 2003-01-20 | 2004-07-21 | Rolls Royce Plc | Abradable Coatings |
| US7732056B2 (en) * | 2005-01-18 | 2010-06-08 | Applied Materials, Inc. | Corrosion-resistant aluminum component having multi-layer coating |
| DE102006028297A1 (de) * | 2006-06-20 | 2007-12-27 | Mtu Aero Engines Gmbh | Verfahren zur Reparatur von Einlaufbelägen |
-
2005
- 2005-12-07 DE DE102005058324A patent/DE102005058324A1/de not_active Withdrawn
-
2006
- 2006-11-30 AT AT06828577T patent/ATE508254T1/de active
- 2006-11-30 US US12/086,110 patent/US20110020560A1/en not_active Abandoned
- 2006-11-30 DE DE502006009452T patent/DE502006009452D1/de active Active
- 2006-11-30 JP JP2008543645A patent/JP2009518571A/ja active Pending
- 2006-11-30 EP EP06828577A patent/EP1957756B1/de not_active Not-in-force
- 2006-11-30 WO PCT/DE2006/002122 patent/WO2007065403A1/de not_active Ceased
- 2006-11-30 CA CA002631362A patent/CA2631362A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007065403A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502006009452D1 (de) | 2011-06-16 |
| ATE508254T1 (de) | 2011-05-15 |
| WO2007065403A1 (de) | 2007-06-14 |
| JP2009518571A (ja) | 2009-05-07 |
| US20110020560A1 (en) | 2011-01-27 |
| DE102005058324A1 (de) | 2007-06-14 |
| EP1957756B1 (de) | 2011-05-04 |
| CA2631362A1 (en) | 2007-06-14 |
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