JP2017137539A - アブレイダブルコーティングの施工方法及びシュラウド - Google Patents
アブレイダブルコーティングの施工方法及びシュラウド Download PDFInfo
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- 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
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- 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
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
- C23C28/044—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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- 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
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
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- 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
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Abstract
Description
図1は、本実施形態に係る施工方法によりアブレイダブルコーティングが施工されるシュラウドの概略構成図である。図2は、本実施形態に係るアブレイダブルコーティングの施工方法に関するフローチャートである。
11 動翼
15 クリアランス
20 シュラウド本体
21 遮熱コーティング層
22 アブレイダブルコーティング層
25 冷却流路
Claims (10)
- セラミック粒子と溶媒とを含むスラリーを用いて、基材の表面上にスラリーパターンを形成するパターン形成工程と、
前記基材の表面上に形成された前記スラリーパターンを焼結して、アブレイダブルコーティング層を形成する焼成工程と、を備えることを特徴とするアブレイダブルコーティングの施工方法。 - 前記基材は、表面に多孔質のセラミック層が形成され、
前記パターン形成工程では、前記スラリーを用いて、前記セラミック層に前記スラリーパターンを形成することを特徴とする請求項1に記載のアブレイダブルコーティングの施工方法。 - 前記セラミック層に含まれるセラミック材料と、前記アブレイダブルコーティング層に含まれるセラミック粒子とは、同じ種類であることを特徴とする請求項2に記載のアブレイダブルコーティングの施工方法。
- 前記基材は、内部に冷却流路が形成されるシュラウドであり、
前記焼成工程では、前記スラリーパターンが形成される部分のみを加熱すると共に、前記冷却流路に冷却媒体を流通させることを特徴とする請求項1から3のいずれか1項に記載のアブレイダブルコーティングの施工方法。 - 前記パターン形成工程では、前記スラリーを吐出するノズルから前記基材へ向けて前記スラリーを吐出させながら、前記ノズルを多軸ロボットにより移動させて、前記スラリーパターンを形成することを特徴とする請求項1から4のいずれか1項に記載のアブレイダブルコーティングの施工方法。
- 前記パターン形成工程では、前記基材の表面上に前記スラリーを塗布し、塗布した前記スラリーに型材を押し当てて、前記スラリーパターンを形成することを特徴とする請求項1から4のいずれか1項に記載のアブレイダブルコーティングの施工方法。
- 前記セラミック粒子は、粒径が大きい粗粒粒子と、前記粗粒粒子に比して粒径が小さい微粒粒子と、を含み、
前記粗粒粒子の体積をV1とし、前記微粒粒子の体積をV2とすると、
前記粗粒粒子と前記微粒粒子との体積比は、50/50≦V1/V2≦90/10の範囲であることを特徴とする請求項1から6のいずれか1項に記載のアブレイダブルコーティングの施工方法。 - 前記粗粒粒子は、平均粒径が、1μm以上10μm以下となっており、
前記微粒粒子は、平均粒径が、0.01μm以上1μm以下となっていることを特徴とする請求項7に記載のアブレイダブルコーティングの施工方法。 - 前記溶媒は、水であることを特徴とする請求項1から8のいずれか1項に記載のアブレイダブルコーティングの施工方法。
- 動翼と対向する表面に多孔質のセラミック層が形成されるシュラウドにおいて、
前記セラミック層の前記表面上に形成されるアブレイダブルコーティング層を備え、
前記セラミック層に含まれるセラミック材料と、前記アブレイダブルコーティング層に含まれるセラミック材料とは、同じ種類であることを特徴とするシュラウド。
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| PCT/JP2017/000116 WO2017134976A1 (ja) | 2016-02-04 | 2017-01-05 | アブレイダブルコーティングの施工方法及びシュラウド |
| CA3013304A CA3013304C (en) | 2016-02-04 | 2017-01-05 | Method for implementing abradable coating |
| EP17747140.6A EP3369487B1 (en) | 2016-02-04 | 2017-01-05 | Shroud and method for implementing abradable coating |
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| JP6632407B2 (ja) | 2020-01-22 |
| US10465548B2 (en) | 2019-11-05 |
| CA3013304C (en) | 2020-10-27 |
| EP3369487A4 (en) | 2018-11-07 |
| WO2017134976A1 (ja) | 2017-08-10 |
| US20180363487A1 (en) | 2018-12-20 |
| EP3369487B1 (en) | 2020-05-27 |
| EP3369487A1 (en) | 2018-09-05 |
| CA3013304A1 (en) | 2017-08-10 |
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