JP5179009B2 - 補修翼端の再コーティングを行わないガスタービン翼端の補修方法 - Google Patents
補修翼端の再コーティングを行わないガスタービン翼端の補修方法 Download PDFInfo
- Publication number
- JP5179009B2 JP5179009B2 JP2005369001A JP2005369001A JP5179009B2 JP 5179009 B2 JP5179009 B2 JP 5179009B2 JP 2005369001 A JP2005369001 A JP 2005369001A JP 2005369001 A JP2005369001 A JP 2005369001A JP 5179009 B2 JP5179009 B2 JP 5179009B2
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- Prior art keywords
- repair
- gas turbine
- turbine blade
- damaged
- repaired
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
- B23P6/007—Repairing turbine components, e.g. moving or stationary blades, rotors using only additive methods, e.g. build-up welding
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/057—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being less 10%
-
- 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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
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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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/005—Repairing methods or devices
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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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/20—Specially-shaped blade tips to seal space between tips and stator
-
- 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
- F05D2230/80—Repairing, retrofitting or upgrading methods
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49318—Repairing or disassembling
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
- Y10T29/49732—Repairing by attaching repair preform, e.g., remaking, restoring, or patching
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49718—Repairing
- Y10T29/49732—Repairing by attaching repair preform, e.g., remaking, restoring, or patching
- Y10T29/49734—Repairing by attaching repair preform, e.g., remaking, restoring, or patching and removing damaged material
Description
22 除去工程
24 溶接工程
25 外形修復工程
26 熱処理工程
28 セラミックコーティング工程
30 熱処理工程
40 損傷ガスタービン翼
41 本体
42 エーロフォイル
44 ダブテール
46 プラットフォーム
48 開口
50 損傷翼端
52 損傷部材
60 端部補修済みガスタービン翼
62 補修済み翼端
64 保護コーティング
66 ボンドコート
68 セラミック熱遮蔽コーティング
70 セラミック熱遮蔽コーティング
80 外側面
82 端面
84 長軸
Claims (7)
- 損傷ガスタービン翼(40)の補修方法であって、当該方法が、
以前に使用されていた、ある母材で製作されている損傷ガスタービン翼(40)を準備する工程と、
前記損傷ガスタービン翼(40)の損傷翼端(50)から損傷部材を除去する工程と、
前記ガスタービン翼の作動環境中においては前記母材より耐酸化性に優れたニッケル基超合金の補修用金属で前記損傷翼端(50)を溶接補修して、補修済み翼端(62)を有する端部補修済みガスタービン翼(60)を形成する工程と、
前記溶接補修工程後に、前記端部補修済みガスタービン翼(60)を1850°F(1010℃)〜2050°F(1121℃)の温度で1時間〜8時間の時間で熱処理し、引き続き、1500°F(816℃)〜1700°F(927℃)の温度で2時間〜16時間の時間でエージング熱処理をする工程と
を含んでおり、前記補修用合金が前記母材と異なる組成を有し、且つ、前記溶接補修工程後に前記補修済み翼端(62)の外側面(80)を非セラミックコーティングでコーティングする工程を含まないことを特徴とする補修方法。 - 前記方法が、前記溶接補修工程後に前記補修済み翼端(62)の前記外側面(80)をセラミックコーティングでコーティングする工程を含まないことを特徴とする請求項1記載の補修方法。
- 前記溶接補修工程後に、前記端部補修済みガスタービン翼(60)を熱処理する工程をさらに含むことを特徴とする請求項1記載の補修方法。
- 前記溶接補修工程は、ガスタービン翼の作動環境中における耐酸化性が、公称重量比組成が、クロム7.4〜7.8%、タンタル5.3〜5.6%、コバルト2.9〜3.3%、アルミニウム7.6〜8.0%、ハフニウム0.12〜0.18%、珪素0.5〜0.6%、タングステン3.7〜4.0%、レニウム1.5〜1.8%、炭素0.01〜0.03%、ホウ素0.01〜0.02%、残部のニッケルという合金と同等またはより優れているニッケル基超合金の補修用合金によって前記損傷翼端(50)を溶接補修する工程を含むことを特徴とする請求項1乃至請求項3のいずれか1項記載の補修方法。
- 前記溶接補修工程は、公称重量比組成が、クロム7.4〜7.8%、タンタル5.3〜5.6%、コバルト2.9〜3.3%、アルミニウム7.6〜8.0%、ハフニウム0.12〜0.18%、珪素0.5〜0.6%、タングステン3.7〜4.0%、レニウム1.5〜1.8%、炭素0.01〜0.03%、ホウ素0.01〜0.02%、残部のニッケルというニッケル基超合金の補修用合金によって損傷翼端(50)を溶接補修する工程を含み、
補修用合金が母材とは異なる組成を有し、前記方法が、前記溶接補修工程後に非セラミックコーティングで翼端の外側面(80)をコーティングする工程を含まないことを特徴とする請求項1乃至請求項4のいずれか1項記載の補修方法。 - 前記溶接補修工程は、端部補修済みガスタービン翼を形成するために、公称重量比組成が、炭素0.01〜0.03%、マンガン最大0.1%、珪素0.5〜0.6%、燐最大0.01%、硫黄最大0.004%、クロム7.4〜7.8%、コバルト2.9〜3.3%、モリブデン最大0.10%、タングステン3.7〜4.0%、タンタル5.3〜5.6%、チタン最大0.02%、アルミニウム7.6〜8.0%、レニウム1.5〜1.8%、セレン最大0.005%、白金最大0.3%、ホウ素0.01〜0.02%、ジルコニウム最大0.03%、ハフニウム0.12〜0.18%、ニオブ最大0.1%、バナジウム最大0.1%、銅最大0.1%、鉄最大0.2%、マグネシウム最大0.0035%、酸素最大0.01%、窒素最大0.01%、残部のニッケルおよび最大0.5%のその他の元素であるニッケル基超合金の補修用金属によって損傷翼端(50)を溶接補修する工程を含むことを特徴とする請求項1乃至請求項3のいずれか1項記載の補修方法。
- 前記母材が、コバルト7.5%、クロム7.0%、モリブデン1.5%、タングステン5%、レニウム3%、タンタル6.5%、アルミニウム6.2%、ハフニウム0.15%、炭素0.05%、ホウ素0.004%、イットリウム0.01%、及び残部のニッケルの公称重量比組成を有する、請求項1乃至請求項6のいずれか1項記載の補修方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/022,185 | 2004-12-23 | ||
US11/022,185 US7587818B2 (en) | 2004-12-23 | 2004-12-23 | Repair of gas turbine blade tip without recoating the repaired blade tip |
Publications (2)
Publication Number | Publication Date |
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JP2006177363A JP2006177363A (ja) | 2006-07-06 |
JP5179009B2 true JP5179009B2 (ja) | 2013-04-10 |
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JP2005369001A Expired - Fee Related JP5179009B2 (ja) | 2004-12-23 | 2005-12-22 | 補修翼端の再コーティングを行わないガスタービン翼端の補修方法 |
Country Status (6)
Country | Link |
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US (2) | US7587818B2 (ja) |
EP (1) | EP1674658B1 (ja) |
JP (1) | JP5179009B2 (ja) |
BR (2) | BRPI0505901B1 (ja) |
CA (1) | CA2530247C (ja) |
SG (2) | SG123747A1 (ja) |
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-
2004
- 2004-12-23 US US11/022,185 patent/US7587818B2/en active Active
-
2005
- 2005-12-15 CA CA2530247A patent/CA2530247C/en not_active Expired - Fee Related
- 2005-12-20 EP EP05257860.6A patent/EP1674658B1/en active Active
- 2005-12-21 SG SG200508275A patent/SG123747A1/en unknown
- 2005-12-21 SG SG200804587-4A patent/SG144158A1/en unknown
- 2005-12-22 JP JP2005369001A patent/JP5179009B2/ja not_active Expired - Fee Related
- 2005-12-22 BR BRPI0505901A patent/BRPI0505901B1/pt not_active IP Right Cessation
- 2005-12-22 BR BRPI0521041A patent/BRPI0521041B1/pt not_active IP Right Cessation
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2009
- 2009-06-18 US US12/486,932 patent/US20090252613A1/en not_active Abandoned
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CA2530247C (en) | 2014-08-19 |
US7587818B2 (en) | 2009-09-15 |
CA2530247A1 (en) | 2006-06-23 |
EP1674658B1 (en) | 2016-06-22 |
BRPI0505901B1 (pt) | 2017-05-23 |
US20090252613A1 (en) | 2009-10-08 |
US20060137179A1 (en) | 2006-06-29 |
SG123747A1 (en) | 2006-07-26 |
JP2006177363A (ja) | 2006-07-06 |
EP1674658A1 (en) | 2006-06-28 |
BRPI0521041B1 (pt) | 2015-12-08 |
SG144158A1 (en) | 2008-07-29 |
BRPI0505901A (pt) | 2006-09-19 |
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