WO2011059064A1 - 翼の製造方法 - Google Patents
翼の製造方法 Download PDFInfo
- Publication number
- WO2011059064A1 WO2011059064A1 PCT/JP2010/070213 JP2010070213W WO2011059064A1 WO 2011059064 A1 WO2011059064 A1 WO 2011059064A1 JP 2010070213 W JP2010070213 W JP 2010070213W WO 2011059064 A1 WO2011059064 A1 WO 2011059064A1
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- WIPO (PCT)
- Prior art keywords
- wing
- molded body
- blade
- layer
- composite material
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
- F04D29/324—Blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/302—Details of the edges of fibre composites, e.g. edge finishing or means to avoid delamination
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
- B29D99/0028—Producing blades or the like, e.g. blades for turbines, propellers, or wings hollow blades
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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
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
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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
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
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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
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/284—Selection of ceramic materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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- 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
- F05D2230/60—Assembly methods
- F05D2230/68—Assembly methods using auxiliary equipment for lifting or holding
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- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/12—Fluid guiding means, e.g. vanes
- F05D2240/122—Fluid guiding means, e.g. vanes related to the trailing edge of a stator vane
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- 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
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
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- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
- F05D2300/6033—Ceramic matrix composites [CMC]
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- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
Definitions
- the present invention relates to a method for manufacturing vanes used in a turbine or a compressor of a gas turbine engine such as a jet engine.
- Turbine blades [turbine vane] used in jet engine turbines are usually made of a heat-resistant alloy such as a nickel alloy.
- a composite material such as a ceramic matrix composite material (CMC) having higher heat resistance and lower specific gravity than a nickel alloy has attracted attention.
- Turbine blades (CMC turbine blades) made of a ceramic matrix composite material have also been developed (Patent Documents 1 and 2 below). And the turbine blade made from CMC is manufactured by the following methods.
- ceramic fibers fiber bundles of ceramic fibers
- a woven-fiber formed body made of ceramic fibers is formed on the surface of the jig.
- the ceramic matrix is impregnated with the ceramic matrix using an impregnation method such as a vapor phase impregnation method (CVI) or a liquid phase impregnation firing method (PIP).
- an impregnation method such as a vapor phase impregnation method (CVI) or a liquid phase impregnation firing method (PIP).
- CVI vapor phase impregnation method
- PIP liquid phase impregnation firing method
- the thickness of the CMC turbine blade generally needs to be generally larger than the thickness of the heat-resistant alloy turbine blade. Along with this, the thickness of the trailing edge of the turbine blade increases. On the other hand, when the thickness of the trailing edge of the turbine blade is increased, the mixing loss between the vortex generated in the vicinity of the trailing edge of the turbine blade and the main flow increases. As a result, pressure loss increases and it becomes difficult to increase turbine efficiency.
- An object of the present invention is to provide a blade manufacturing method capable of improving turbine efficiency by suppressing the thickness of the rear end of the blade.
- the following features of the present invention are all used for a turbine or a compressor of a gas turbine engine, and are wings made of a composite material made of a reinforcing fiber and a matrix, and made of a composite material made of a reinforcing fiber and a matrix
- a hollow outer layer blade formed of a composite material composed of a reinforcing fiber and a matrix, and extending from the inner surface of the outer layer blade toward the inner surface of the rear edge, and the outer surface of the outer layer is the back side of the outer layer blade
- a wing is manufactured in which a rear space is defined between an outer surface and a rear edge side inner surface of the outer wing.
- the first feature of the present invention is the above-described blade manufacturing method, wherein: (a) an inner-layer wing fabric formed of reinforcing fibers on the surface of a jig having a surface shape corresponding to the inner-surface shape of the inner-layer wing (B) impregnating the inner layer wing fabric molded body with a matrix to finish the inner layer wing fabric molded body as the inner layer wing; (c) during or after the end of (b), Remove from the inner wing fabric molded body or the inner wing, and (d) after completion of (b) and (c), combining the auxiliary wing having the surface shape corresponding to the rear space and the inner wing Forming a combined body, (e) after the end of (d), forming an outer wing woven fabric formed of reinforcing fibers on the surface of the combined body, (f) after the end of (e), The outer layer wing fabric molding is impregnated with a matrix, and the outer layer wing fabric molding is performed. Finishing the outer
- a second feature of the present invention is the above-described wing manufacturing method, wherein (A) an inner-layer wing fabric formed of reinforcing fibers on the surface of a jig having a surface shape corresponding to the inner-surface shape of the inner-layer wing. (B) After the completion of (A), an auxiliary jig having a surface shape corresponding to the rear space is combined with the inner wing fabric molded body to form a combined body, and (C) ( After the end of B), an outer layer wing fabric molded body composed of reinforcing fibers is formed on the surface of the combination.
- a third feature of the present invention is a method for manufacturing the wing as described above, wherein (i) an inner wing woven fabric formed of reinforcing fibers on the surface of a jig having a surface shape corresponding to the inner surface shape of the inner wing. Forming a body, (ii) impregnating the inner-layer wing fabric molded body with a matrix, and finishing the inner-layer wing fabric molded body as the inner-layer wing; (iii) during or after the completion of (ii) And (iv) after completion of (ii) and (iii), the rear filling member having a surface shape corresponding to the rear space and the inner layer wing are combined.
- a method for manufacturing the wing as described above wherein (I) an inner wing woven fabric formed of reinforcing fibers on a surface of a jig having a surface shape corresponding to the inner surface shape of the inner wing. (II) After the completion of (I), a rear filling member having a surface shape corresponding to the rear space and the inner wing fabric molded body are combined to form a combination, and (III) ( After the completion of II), an outer layer wing fabric molded body composed of reinforcing fibers is formed on the surface of the combination.
- the thickness of the composite material blade can be reduced while increasing the thickness from the leading edge to the middle portion of the composite material blade, so that the rigidity of the composite material blade can be reduced.
- the thickness of the trailing edge of the wing can be reduced while ensuring As a result, an increase in pressure loss in the vicinity of the trailing edge of the blade is suppressed, so that turbine efficiency or compressor efficiency can be improved.
- the composite material is preferably a ceramic matrix composite material or a carbon matrix composite material. Since the ceramic base composite material or the carbon base composite material has a higher heat resistant temperature than the metal, cooling of the blades in a high temperature environment can be made unnecessary, or the amount of cooling air can be reduced and the efficiency can be improved. In addition, since the ceramic matrix composite material or the carbon matrix composite material has a lower density than the metal and can reduce the weight of the component, the weight can be reduced and the fuel consumption rate can be improved.
- vane includes “turbine vane” and “compressor vane”.
- turbine blade turbine ⁇ ⁇ ⁇ vane
- compressor vane includes “compressor vane” and “compressor vane”.
- FIG. 3 is a cross-sectional view of a turbine vane (a cross-sectional view taken along a line II in FIG. 2). It is a side view (partial cross section) of a turbine stator segment. It is sectional drawing of a turbine stationary blade (other embodiment).
- FIG. 4 is a flowchart of the method for manufacturing the turbine stationary blade according to the first embodiment.
- FIG. 5A is an explanatory diagram of the inner layer blade fabric forming process in the first [2, 3, 4] embodiment
- FIG. 5B is an explanatory diagram of the inner layer blade impregnation step in the first [3] embodiment.
- FIG. 5C is an explanatory diagram of the jig removing process in the first [3] embodiment.
- FIG.6 (a) is explanatory drawing of the combination process in 1st Embodiment
- FIG.6 (b) is explanatory drawing of an outer layer wing fabric formation process
- FIG. 7A is an explanatory diagram of the outer layer blade impregnation step in the first embodiment
- FIG. 7B is an explanatory diagram of the auxiliary jig removing step.
- FIG. 8 is a flowchart of a method for manufacturing a turbine vane according to the second embodiment.
- Fig.9 (a) is explanatory drawing of the combination process in 2nd Embodiment
- FIG.9 (b) is explanatory drawing of an outer layer wing fabric formation process.
- FIG. 10A is an explanatory view of the impregnation step in the second embodiment
- FIG. 10B is an explanatory view of the removal step.
- FIG. 11 is a flowchart of a method for manufacturing a turbine vane according to the third embodiment.
- Fig.12 (a) is explanatory drawing of the combination process in 3rd Embodiment
- FIG.12 (b) is explanatory drawing of an outer layer wing fabric formation process.
- FIG. 13 is an explanatory diagram of the outer blade impregnation step in the third embodiment.
- FIG. 14 is a flowchart of a method for manufacturing a turbine vane according to the fourth embodiment.
- Fig.15 (a) is explanatory drawing of the combination process in 4th Embodiment
- FIG.15 (b) is a figure explaining an outer layer wing fabric formation process.
- FIG. 16A is an explanatory view of the impregnation step in the fourth embodiment
- FIG. 16B is an explanatory view of the removal step.
- FIGS. 1 and 2 a turbine stationary blade 3 manufactured by an embodiment of a manufacturing method described later will be described with reference to FIGS. 1 and 2.
- F indicates the forward direction (upstream direction)
- R indicates the backward direction (downstream direction)
- In indicates the radially inner side
- Out indicates the radially outer side.
- a turbine stator (turbine nozzle) used in a jet engine turbine (not shown) is divided into a plurality of turbine stator segments (turbine nozzle segments) 1 in the circumferential direction (see FIG. 2).
- the turbine stator segment 1 includes a plurality of turbine vanes 3 (only one is shown).
- the turbine stationary blade 3 is made of a ceramic matrix composite material (a type of composite material: hereinafter referred to as CMC) composed of a ceramic matrix (a type of matrix) and ceramic fibers (a type of reinforcing fiber). The details of the configuration of the turbine stationary blade 3 will be described later.
- CMC ceramic matrix composite material
- An arc-shaped outer band 5 is integrally provided at the outer end (radially outer end) of the turbine stationary blade 3.
- the outer band 5 is made of a heat resistant alloy such as a nickel alloy.
- an arc-shaped front flange 7 that is locked to a part of a turbine case (not shown) is formed.
- an arc-shaped rear flange 9 that is locked to a part of the turbine case is formed.
- the outer band 5 may be comprised with composite materials, such as CMC and a carbon group composite material, instead of a heat resistant alloy.
- An arc-shaped inner band 11 is integrally provided at the inner end (radially inner end) of the turbine stationary blade 3.
- the inner band 11 is made of a heat resistant alloy such as a nickel alloy.
- arc-shaped ribs 13 are formed that are fitted into grooves (not shown) of a stator support member that is integrally connected to the turbine case.
- the inner band 11 may be comprised with composite materials, such as CMC and a carbon group composite material, instead of a heat resistant alloy.
- the turbine stationary blade 3 includes a hollow outer layer blade (outer blade) 15.
- the outer wing 15 is composed of CMC made of ceramic fibers and a ceramic matrix.
- ceramic fibers carbon fibers, glass fibers, or mixed fibers thereof (at least two types of mixed fibers of ceramic fibers, carbon fibers, and glass fibers) may be used.
- a carbon matrix or a glass matrix may be used.
- a hollow inner layer blade (inner blade) 17 is integrally provided on the inner surface of the outer layer blade 15.
- the inner layer blade 17 is composed of CMC made of ceramic fibers and a ceramic matrix.
- the inner layer blade 17 extends from the inner surface 15a on the leading edge side of the outer layer blade 15 toward the inner surface 15t on the rear edge side.
- the outer surface 17t on the rear edge side of the inner layer blade 17 is located on the rear edge side with respect to the intermediate position of the inner layer blade 17 (intermediate position in the cord length direction).
- the dorsal-side outer surface 17 d of the inner layer wing 17 is integrally joined to the back side inner surface 15 d of the outer layer wing 15.
- ventral-side outer surface 17v of the inner wing 17 is integrally joined to the ventral inner surface 15v of the outer wing 15.
- ceramic fibers carbon fibers, glass fibers, or mixed fibers thereof may be used.
- a carbon matrix or a glass matrix may be used instead of the ceramic matrix.
- a rear space S is defined between a rear edge side outer surface 17 t of the inner layer blade 17 and a rear edge side inner surface 15 t of the outer layer blade 15.
- a plurality of outlet holes 19 for injecting cooling air introduced into the inner layer blade 17 through a front insert (not shown) are provided on the front edge 3a and the ventral surface 3v of the turbine vane 3. Is formed. Each injection hole 19 continues through the outer layer blade 15 and the inner layer blade 17.
- a plurality of discharge holes 21 for discharging cooling air introduced into the rear space S through rear inserts (not shown) are formed in the rear edge 3t of the turbine vane 3. . Each discharge hole 21 penetrates the outer layer blade 15. The cooling air is compressed air extracted from a jet engine compressor (not shown).
- the hollow inner layer blade 17 is integrally provided on the inner surface of the hollow outer layer blade 15, and a rear space is provided between the rear edge side outer surface 17 t of the inner layer blade 17 and the rear edge side inner surface 15 t of the outer layer blade 15. S is partitioned. Therefore, a portion from the front edge 3a of the turbine stationary blade 3 to the middle portion 3m (that is, before the rear edge side inner surface 15t of the outer layer blade 15) forms a two-layer structure of the outer layer blade 15 and the inner layer blade 17.
- the part from the middle part 3m to the trailing edge 3t constructs a single layer structure of only the outer layer blades 15. As a result, the thickness from the middle part 3m to the rear edge 3t can be reduced while the thickness from the front edge 3a to the middle part 3m of the turbine vane 3 made of CMC is increased.
- the turbine stationary blade 3 by increasing the thickness of the trailing edge 3t while securing the rigidity of the turbine stationary blade 3 made of CMC, the increase in pressure loss in the vicinity of the trailing edge 3t is suppressed, and Efficiency can be improved.
- the turbine stationary blade 23 is used in a turbine of a jet engine, and has substantially the same configuration as the turbine stationary blade 3 described above. Of the specific configuration of the turbine stationary blade 23, only the differences from the specific configuration of the turbine stationary blade 3 will be described. In addition, about the component of the turbine stationary blade 23 which is the same as or equivalent to the component of the turbine stationary blade 3, the same number is attached
- the rear space S is filled with a rear filled member [rear filled member] 25 (rear core member).
- the rear filling member 25 is provided integrally with the outer layer blade 15 and the inner layer blade 17.
- a plurality of injection holes 27 for injecting cooling air introduced into the inner layer blade 17 through a front insert (not shown) are formed in the front edge 23a and the abdominal surface 23v of the turbine stationary blade 23. Each injection hole 27 penetrates the outer layer blade 15 and the inner layer blade 17.
- a plurality of discharge holes 29 are formed in the rear edge 23t of the turbine vane 23 to discharge the cooling air introduced into the rear space S via a rear insert (not shown). Each discharge hole 29 penetrates the outer layer blade 15, the rear filling member 25, and the inner layer blade 17.
- the turbine vane 23 has the same advantages as the turbine vane 3 described above. However, in the turbine stationary blade 23, the rear space member S is filled in the rear space S of the turbine stationary blade 3 described above. By filling the rear filling member 25, the strength and rigidity of the blade trailing edge of the turbine stationary blade 23 can be improved.
- the turbine stator blade manufacturing method of this embodiment is a method of manufacturing the turbine stator blade 3 shown in FIG.
- the present method includes an inner layer blade fabric forming step, an inner layer blade impregnation step, a jig removing step, a combining step, an outer layer blade fabric forming step, an outer layer blade impregnating step, an auxiliary jig removing step, and a machining step.
- the concrete content of each process in the manufacturing method of this embodiment is as follows.
- Step S11 Inner-layer wing fabric forming step
- a jig 31 having a surface shape corresponding to the inner-surface shape of the inner-layer wing 17 ceramic fibers (fiber bundles of ceramic fibers) are formed. Weaving is performed two-dimensionally and / or three-dimensionally along the surface of the jig 31 by blade weave or plain weave. Thereby, the inner layer wing fabric molded body 17 ⁇ / b> F composed of ceramic reinforcing fibers is formed on the surface of the jig 31.
- the weaving method of the ceramic fibers can be changed as appropriate.
- Step S12 Inner-layer blade impregnation step
- the gas phase impregnation method CVI method
- the liquid phase impregnation firing method PIP method
- the inner layer wing fabric molded body 17F is impregnated with a ceramic matrix by a phase impregnation method or the like. Thereby, the inner layer wing fabric molded body 17 ⁇ / b> F is finished as the inner layer wing 17.
- the method for impregnating the ceramic matrix can be changed as appropriate.
- Step S13 Jig Removal Process As shown in FIG. 5C, the jig 31 is moved in the lateral direction during or after the inner blade impregnation process, and the jig 31 becomes the inner layer woven fabric molded body 17F. Alternatively, it is removed from the inner layer blade 17.
- Step S14 Combination Step
- the auxiliary jig 33 having the surface shape corresponding to the rear space S and the inner layer blade 17 are formed. It is set at a predetermined position of the combination jig 37.
- the inner layer blade 17 and the auxiliary jig 33 are combined adjacently. As a result, a combined body 35 composed of the inner layer blade 17 and the auxiliary jig 33 is formed.
- Step S15 Outer Wing Fabric Formation Process
- ceramic fibers fiber bundles of ceramic fibers
- the outer-layer wing fabric molded body 15 ⁇ / b> F composed of ceramic fibers is formed on the surface of the combined body 35.
- the weaving method of the ceramic fibers can be changed as appropriate.
- the outer layer wing fabric molded body 15F may be formed by winding a fabric made of ceramic fibers around the surface of the combination 35.
- Step S16 Outer wing impregnation step
- the gas phase impregnation method CVI method
- liquid phase impregnation firing method PIP method
- the outer layer wing fabric molded body 15F is impregnated with a ceramic matrix by a phase impregnation method or the like. Thereby, the outer layer wing fabric molded body 15 ⁇ / b> F is finished as the outer layer wing 15.
- the method for impregnating the ceramic matrix can be changed as appropriate.
- Step S17 Auxiliary Jig Removal Process
- the auxiliary jig 33 is moved in the lateral direction during or after the outer wing impregnation process so that the auxiliary jig 33 becomes the outer wing.
- the fabric molded body 15F or the outer layer blade 15 is removed.
- Step S18 Machining Step After the removal step, the injection hole 19 and the discharge hole 21 are formed by machining. In addition, after forming the injection hole 19 and the discharge hole 21, it is desirable that the surface of the outer layer blade 15 and the inner layer blade 17 be coated by an appropriate impregnation method.
- the combination body 35 is formed by the auxiliary jig 33 having the surface shape corresponding to the rear space S and the inner layer blade 17, and the outer layer wing fabric molded body 15 ⁇ / b> F is formed on the surface of the combination body 35. Therefore, a portion from the front edge 3a of the turbine stationary blade 3 to the middle portion 3m (that is, before the rear edge side inner surface 15t of the outer layer blade 15) forms a two-layer structure of the outer layer blade 15 and the inner layer blade 17.
- the part from the middle part 3m to the trailing edge 3t constructs a single layer structure of only the outer layer blades 15. As a result, the thickness from the middle part 3m to the rear edge 3t can be reduced while the thickness from the front edge 3a to the middle part 3m of the turbine vane 3 made of CMC is increased.
- the first embodiment has the same advantages as the advantages of the turbine stationary blade 3 described above.
- the turbine stator blade manufacturing method is a method of manufacturing the turbine stator blade 3 shown in FIG.
- the method includes an inner layer wing fabric forming step, a combination step, an outer layer wing fabric forming step, an impregnation step, a removal step, and a machining step.
- the concrete content of each process in the manufacturing method of this embodiment is as follows.
- Step S21 Inner-layer wing fabric forming process As shown in FIG. 5A, by performing the same process as the inner-layer wing fabric forming step (step S11) of the first embodiment, An inner-layer wing fabric molded body 17F made of ceramic reinforcing fibers is formed.
- Step S22 Combining Step As shown in FIG. 9A, after the inner layer wing fabric forming step, the auxiliary jig 33 having the surface shape corresponding to the rear space S and the inner layer wing fabric molded body 17F are adjacent to each other. Combined. Thereby, the combination body 35F which consists of the inner-layer wing fabric molded body 17F and the auxiliary jig 33 is formed.
- Step S23 Outer layer wing fabric forming step As shown in FIG. 9B, by performing the same process as the outer layer wing fabric forming step (step S15) of the first embodiment after the combination step, An outer layer wing fabric molded body 15F made of ceramic fibers is formed on the surface of the combined body 35F.
- Step S24 Impregnation Step
- the vapor phase impregnation method CVI method
- the liquid phase impregnation firing method PIP method
- the solid phase impregnation The outer layer wing fabric molded body 15F and the inner layer wing fabric molded body 17F are impregnated with a ceramic matrix by a method or the like. Thereby, the outer layer wing fabric molded body 15F and the inner layer wing fabric molded body 17F are finished as the outer layer wing 15 and the inner layer wing 17, respectively.
- Step S25 Removal Process As shown in FIG. 10 (b), the jig 31 and the auxiliary jig 33 are moved in the lateral direction during or after the impregnation process, so that the jig 31 becomes the inner wing fabric molded body.
- the auxiliary jig 33 is removed from the outer layer blade fabric molded body 15F or the outer layer blade 15 while being removed from the 17F or inner layer blade 17.
- Step S26 Machining Process
- the injection hole 19 and the plurality of discharge holes 21 are formed by executing the same process as the machining process (step S18) of the first embodiment.
- the combination body 35F is formed by the auxiliary jig 33 having the surface shape corresponding to the rear space S and the inner layer wing fabric molded body 17F, and the outer layer wing fabric molded body 15F is formed on the surface of the combination body 35F.
- a portion from the front edge 3a of the turbine stationary blade 3 to the middle portion 3m forms a two-layer structure of the outer layer blade 15 and the inner layer blade 17.
- the part from the middle part 3m to the trailing edge 3t constructs a single layer structure of only the outer layer blades 15.
- the thickness from the middle part 3m to the rear edge 3t can be reduced while the thickness from the front edge 3a to the middle part 3m of the turbine stator blade 3 made of CMC is increased.
- the second embodiment has the same advantages as the advantages of the turbine stationary blade 3 described above.
- FIG. 11 A method for manufacturing a turbine vane according to the third embodiment will be described with reference to the flowchart of FIG. 11, FIGS. 5 (a) to 5 (c), FIGS. 12 (a) to 13 and FIG. 16 (b). To do.
- the turbine stator blade manufacturing method is a method of manufacturing the turbine stator blade 23 shown in FIG.
- This method includes an inner layer wing fabric forming step, an inner layer wing impregnation step, a combining step, an outer layer wing fabric forming step, an outer layer wing impregnation step, a jig removing step, and a machining step.
- the concrete content of each process in this embodiment is as follows.
- Step S31 Inner-layer wing fabric forming process As shown in FIG. 5A, by performing the same process as the inner-layer wing fabric forming step (step S11) of the first embodiment, An inner-layer wing fabric molded body 17F made of ceramic reinforcing fibers is formed.
- Step S32 Inner-layer blade impregnation step As shown in FIG. 5 (b), after the inner-layer blade fabric forming step, the same processing as the inner-layer blade impregnation step (step S12) of the first embodiment is performed.
- the inner wing fabric molded body 17F is finished as the inner wing 17.
- Step S33 Jig Removal Process As shown in FIG. 5 (c), the same process as the jig removal process (step S13) of the first embodiment is performed during or after the inner blade impregnation process. Thus, the jig 31 is removed from the inner-layer wing fabric molded body 17F or the inner-layer wing 17.
- Step S34 Combining Step
- the rear filling member 25 having the surface shape corresponding to the rear space S and the inner layer blade 17 are formed. It is set at a predetermined position of the combination jig 39.
- the inner layer blade 17 and the rear filling member 25 are combined adjacently. Thereby, the combination body 41 which consists of the inner layer blade
- Step S35 Outer layer wing fabric forming step As shown in FIG. 12B, by performing the same process as the outer layer wing fabric forming step (step S15) of the first embodiment after the combination step, On the surface of the combination body 41, an outer layer wing fabric molded body 15F made of ceramic fibers is formed.
- Step S36 Outer wing impregnation step
- the vapor phase impregnation method CVI method
- the liquid phase impregnation firing method PIP method
- the solid phase impregnation method The outer layer wing fabric molded body 15F is impregnated with a ceramic matrix.
- the outer layer wing fabric molded body 15 ⁇ / b> F is finished as the outer layer wing 15.
- the method for impregnating the ceramic matrix can be changed as appropriate.
- the combination jig 39 is removed, but the rear filling member 25 remains in the rear space S.
- Step S37 Machining Step After the outer blade impregnation step, the injection hole 27 and the discharge hole 29 are formed by machining. Further, the excess portion of the rear filling member 25 that protrudes from the outer layer blade 15 is also removed here. In addition, after forming the injection hole 27 and the discharge hole 29, it is desirable that the surface of the outer layer blade 15 and the inner layer blade 17 be coated by an appropriate impregnation method.
- the combination body 41 is formed by the rear filling member 25 having the surface shape corresponding to the rear space S and the inner layer blade 17, and the outer layer blade fabric molded body 15 ⁇ / b> F is formed on the surface of the combination body 41. Therefore, a portion from the front edge 23 a of the turbine stationary blade 23 to the middle portion 23 m (that is, before the rear edge side inner surface 15 t of the outer layer blade 15) forms a two-layer structure of the outer layer blade 15 and the inner layer blade 17.
- the part from the middle part 23m to the rear edge 23t constructs a single-layer structure of only the outer layer blade 15. As a result, the thickness from the middle portion 23m to the rear edge 23t can be reduced while increasing the thickness from the front edge 23a to the middle portion 23m of the turbine stationary blade 23 made of CMC.
- the third embodiment has the advantage of the turbine stationary blade 23 described above.
- the turbine stator blade manufacturing method is a method of manufacturing the turbine stator blade 23 shown in FIG.
- This method includes an inner layer wing fabric forming step, a combination step, an outer layer wing fabric forming step, an impregnation step, a jig removing step, and a machining step.
- the concrete content of each process in this embodiment is as follows.
- Step S41 Inner-layer wing fabric forming step As shown in FIG. 5A, the same process as the inner-layer wing fabric forming step (step S11) of the first embodiment is performed, so that the surface of the jig 31 is formed. An inner-layer wing fabric molded body 17F made of ceramic reinforcing fibers is formed.
- Step S42 Combining Step As shown in FIG. 15A, after the inner layer wing fabric forming step, the rear filling member 25 having a surface shape corresponding to the rear space S and the inner layer wing fabric molded body 17F are adjacent to each other. Combined. Thereby, the combination body 41F which consists of the inner-layer wing fabric molded body 17F and the rear filling member 25 is formed.
- Step S43 Outer layer wing fabric forming step As shown in FIG. 15B, by performing the same process as the outer layer wing fabric forming step (step S15) of the first embodiment after the combination step, An outer layer wing fabric molded body 15F made of ceramic fibers is formed on the surface of the combination body 41F.
- Step S44 Impregnation Step
- the gas phase impregnation method CVI method
- liquid phase impregnation firing method PIP method
- solid phase impregnation solid phase impregnation
- the outer layer wing fabric molded body 15F and the inner layer wing fabric molded body 17F are impregnated with a ceramic matrix by a method or the like. Thereby, the outer layer wing fabric molded body 15F and the inner layer wing fabric molded body 17F are finished as the outer layer wing 15 and the inner layer wing 17, respectively.
- Step S45 Jig Removal Process As shown in FIG. 16B, by performing the same process as the jig removal process (step S33) of the third embodiment after or during the impregnation process, The jig 31 is removed from the inner layer blade molded body 17F. The jig 31 is removed, but the rear filling member 25 remains in the rear space S.
- Step S46 Machining Process
- the injection hole 27 and the discharge hole 29 are formed by executing the same process as the machining process (step S37) of the third embodiment. Further, the excess portion of the rear filling member 25 that protrudes from the outer layer blade 15 is also removed here.
- the surface of the outer layer blade 15 and the inner layer blade 17 be coated by an appropriate impregnation method.
- the combination body 41F is formed by combining the rear filling member 25 having the surface shape corresponding to the rear space S and the inner layer wing fabric molded body 17F, and the outer layer wing fabric molded body 15F is formed on the surface of the combination body 41F. . Therefore, a portion from the front edge 23 a of the turbine stationary blade 23 to the middle portion 23 m (that is, before the rear edge side inner surface 15 t of the outer layer blade 15) forms a two-layer structure of the outer layer blade 15 and the inner layer blade 17.
- the part from the middle part 23m to the rear edge 23t constructs a single-layer structure of only the outer layer blade 15. As a result, the thickness from the middle portion 23m to the rear edge 23t can be reduced while increasing the thickness from the front edge 23a to the middle portion 23m of the turbine stationary blade 23 made of CMC.
- the fourth embodiment has the same effects as the advantages provided by the turbine stationary blade 23 described above.
- the present invention is not limited to the description of the above-described embodiment.
- the configuration of the turbine stationary blades 3 and 23 can be applied to a turbine rotor blade, a compressor stator blade, a compressor rotor blade, and the like.
- the methods of the first to fourth embodiments can be applied to manufacturing methods for turbine blades, compressor stationary blades, compressor blades, and the like.
- the present invention can be implemented in various other modes. Further, the scope of rights encompassed by the present invention is not limited to the above-described embodiment.
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Abstract
Description
本発明の第1の特徴は、上記翼の製造方法であって、(a)前記内層翼の内面形状に対応する表面形状を有する治具の表面に強化繊維で構成された内層翼織物成形体を形成し、(b)前記内層翼織物成形体にマトリックスを含浸させて、前記内層翼織物成形体を前記内層翼として仕上げ、(c)前記(b)の途中又は終了後に、前記治具を前記内層翼織物成形体又は前記内層翼から取外し、(d)前記(b)及び前記(c)の終了後に、前記後部空間に対応する表面形状を有する補助治具と前記内層翼とを組合せて組合せ体を形成し、(e)前記(d)の終了後に、前記組合せ体の表面に強化繊維で構成された外層翼織物成形体を形成し、(f)前記(e)の終了後に、前記外層翼織物成形体にマトリックスを含浸させ、前記外層翼織物成形体を前記外層翼に仕上げ、(g)前記(f)の途中又は終了後に、前記補助治具を前記外層翼織物成形体又は前記外層翼から取外す、翼の製造方法を提供する。
第1実施形態に係るタービン静翼の製造方法について、図4のフローチャート、図5(a)~図7(b)を参照して説明する。
図5(a)に示されるように、内層翼17の内面形状に対応する表面形状を有した治具31を用い、セラミックス繊維(セラミックス繊維の繊維束)をブレード織り[braid weave]又は平織り[plain weave]等により治具31の表面に沿って2次元的及び/又は3次元的に織り込む。これにより、治具31の表面にセラミックス強化繊維で構成された内層翼織物成形体17Fが形成される。なお、セラミックス繊維の織り方は、適宜変更可能である。
図5(b)に示されるように、内層翼織物形成工程の終了後に、気相含浸法(CVI法)、液相含浸焼成法(PIP法)、及び、固相含浸法などによって内層翼織物成形体17Fにセラミックスマトリックスが含浸される。これにより、内層翼織物成形体17Fが内層翼17として仕上げられる。なお、セラミックスマトリックスの含浸法は、適宜変更可能である。
図5(c)に示されるように、内層翼含浸工程の途中又は終了後に、治具31を横方向に移動させて、治具31が内層翼織物成形体17F又は内層翼17から取外される。
図6(a)に示されるように、内層翼含浸工程及び治具取外し工程の終了後に、後部空間Sに対応する表面形状を有する補助治具33と内層翼17とが組合せ治具37の所定位置にセットされる。ここで、内層翼17と補助治具33とは隣接して組合わされる。これにより、内層翼17と補助治具33とからなる組合せ体35が形成される。
図6(b)に示されるように、組合せ工程の終了後に、セラミックス繊維(セラミックス繊維の繊維束)をブレード織り又は平織り等により組合せ体35の表面に沿って2次元的及び/又は3次元的に織り込む。これにより、組合せ体35の表面にセラミック繊維で構成された外層翼織物成形体15Fが形成される。なお、セラミックス繊維の織り方は、適宜変更可能である。また、セラミックス繊維を織り込む代わりに、組合せ体35の表面にセラミックス繊維からなる織物を巻付けることで外層翼織物成形体15Fが形成されてもよい。
図7(a)に示されるように、外層翼織物形成工程の終了後に、気相含浸法(CVI法)、液相含浸焼成法(PIP法)、及び、固相含浸法などによって外層翼織物成形体15Fにセラミックスマトリックスが含浸される。これにより、外層翼織物成形体15Fが外層翼15として仕上げられる。なお、セラミックスマトリックスの含浸法は、適宜変更可能である。
図7(b)に示されるように、外層翼含浸工程のの途中又は終了後に、補助治具33を横方向へ移動させて、補助治具33が外層翼織物成形体15F又は外層翼15ら取外される。
取外し工程の終了後に、機械加工によって噴射孔19及び排出孔21が形成される。なお、噴射孔19及び排出孔21の形成後に、適宜の含浸法によって外層翼15及び内層翼17の表面にコーティング処理が施されることが望ましい。
第2実施形態に係るタービン静翼の製造方法について、図8のフローチャート、図5(a)、及び、図9(a)~図10(b)を参照して説明する。
図5(a)に示されるように、第1実施形態の内層翼織物形成工程(ステップS11)と同様の処理を実行することで、治具31の表面にセラミックス強化繊維で構成された内層翼織物成形体17Fが形成される。
図9(a)に示されるように、内層翼織物形成工程の終了後に、後部空間Sに対応する表面形状を有する補助治具33と内層翼織物成形体17Fとが隣接して組合せられる。これにより、内層翼織物成形体17Fと補助治具33とからなる組合せ体35Fが形成される。
図9(b)に示されるように、組合せ工程の終了後に、第1実施形態の外層翼織物形成工程(ステップS15)と同様の処理を実行することで、組合せ体35Fの表面にセラミックス繊維で構成された外層翼織物成形体15Fが形成される。
図10(a)に示されるように、外層翼織物形成工程の終了後に、気相含浸法(CVI法)、液相含浸焼成法(PIP法)、及び、固相含浸法などによって外層翼織物成形体15F及び内層翼織物成形体17Fにセラミックスマトリックスが含浸される。これにより、外層翼織物成形体15F及び内層翼織物成形体17Fが、それぞれ外層翼15及び内層翼17として仕上げられる。
図10(b)に示されるように、含浸工程の途中又は終了後に、治具31及び補助治具33を横方向に移動させて、治具31が内層翼織物成形体17F又は内層翼17から取外されると共に、補助治具33が外層翼織物成形体15F又は外層翼15から取外される。
取外し工程の終了後に、第1実施形態の機械加工工程(ステップS18)と同様の処理を実行することで、噴射孔19及び複数の排出孔21が形成される。なお、噴射孔27及び排出孔29の形成後に、適宜の含浸法によって外層翼15及び内層翼17の表面にコーティング処理が施されることが望ましい。
第3実施形態に係るタービン静翼の製造方法について、図11のフローチャート、図5(a)~(c)、図12(a)~図13、及び、図16(b)を参照して説明する。
図5(a)に示されるように、第1実施形態の内層翼織物形成工程(ステップS11)と同様の処理を実行することで、治具31の表面にセラミックス強化繊維で構成された内層翼織物成形体17Fが形成される。
図5(b)に示されるように、内層翼織物形成工程の終了後に、第1実施形態の内層翼含浸工程(ステップS12)と同様の処理を実行することで、内層翼織物成形体17Fが内層翼17として仕上げられる。
図5(c)に示されるように、内層翼含浸工程の途中又は終了後に、第1実施形態の治具取外し工程(ステップS13)と同様の処理を実行することで、治具31が内層翼織物成形体17F又は内層翼17から取外される。
図12(a)に示されるように、内層翼含浸工程及び治具取外し工程の終了後に、後部空間Sに対応する表面形状を有する後部充填部材25と内層翼17とが組合せ治具39の所定位置にセットされる。ここで、内層翼17と後部充填部材25とは隣接して組合わされる。これにより、内層翼17と後部充填部材25とからなる組合せ体41が形成される。
図12(b)に示されるように、組合せ工程の終了後に、第1実施形態の外層翼織物形成工程(ステップS15)と同様の処理を実行することで、組合せ体41の表面にセラミックス繊維で構成された外層翼織物成形体15Fが形成される。
図13に示されるように、外層翼織物形成工程の終了後に、気相含浸法(CVI法)、液相含浸焼成法(PIP法)、及び、固相含浸法などによって外層翼織物成形体15Fにセラミックスマトリックスが含浸される。これにより、外層翼織物成形体15Fが外層翼15として仕上げられる。なお、セラミックスマトリックスの含浸法は、適宜変更可能である。この工程の途中又は終了後、組合せ治具39は取り外されるが、後部充填部材25は後部空間S内に残る。
外層翼含浸工程の終了後に、機械加工によって噴射孔27及び排出孔29が形成される。また、外層翼15からはみ出した後部充填部材25の余分な部分も、ここで除去される。なお、噴射孔27及び排出孔29の形成後に、適宜の含浸法によって外層翼15及び内層翼17の表面にコーティング処理が施されることが望ましい。
第4実施形態に係るタービン静翼の製造方法について、図14のフローチャート、図5(a)、及び、図15(a)~図16(b)を参照して説明する。
図5(a)に示されるように、第1実施形態の内層翼織物形成工程(ステップS11)と同様の処理を実行することで、治具31の表面にセラミックス強化繊維で構成された内層翼織物成形体17Fが形成される。
図15(a)に示されるように、内層翼織物形成工程の終了後に、後部空間Sに対応する表面形状を有する後部充填部材25と内層翼織物成形体17Fとが隣接して組合せられる。これにより、内層翼織物成形体17Fと後部充填部材25とからなる組合せ体41Fが形成される。
図15(b)に示されるように、組合せ工程の終了後に、第1実施形態の外層翼織物形成工程(ステップS15)と同様の処理を実行することで、組合せ体41Fの表面にセラミックス繊維で構成された外層翼織物成形体15Fが形成される。
図16(a)に示されるように、外層翼織物形成工程の終了後に、気相含浸法(CVI法)、液相含浸焼成法(PIP法)、及び、固相含浸法などによって外層翼織物成形体15F及び内層翼織物成形体17Fにセラミックスマトリックスを含浸させる。これにより、外層翼織物成形体15F及び内層翼織物成形体17Fが、それぞれ外層翼15及び内層翼17として仕上げられる。
図16(b)に示されるように、含浸工程の途中又は終了後に、第3実施形態の治具取外し工程(ステップS33)と同様の処理を実行することで、治具31が内層翼成形体17Fから取外される。治具31は取り外されるが、後部充填部材25は後部空間S内に残る。
治具取外し工程の終了後に、第3実施形態の機械加工工程(ステップS37)と同様の処理を実行することで、噴射孔27及び排出孔29が形成される。また、外層翼15からはみ出した後部充填部材25の余分な部分も、ここで除去される。なお、噴射孔27及び排出孔29の形成後に、適宜の含浸法によって外層翼15及び内層翼17の表面にコーティング処理が施されることが望ましい。
Claims (8)
- ガスタービンエンジンのタービン又は圧縮機に用いられ、強化繊維とマトリックスとからなる複合材料製の翼であって、
強化繊維とマトリックスとからなる複合材料で構成された中空状の外層翼と、
強化繊維とマトリックスとからなる複合材料で構成され、前記外層翼の前縁側内面から後縁側内面に向けて延材し、背側外面が前記外層翼の背側内面に一体的に接合され、腹側外面が前記外層翼の腹側内面に一体的に接合された中空状の内層翼と、を備えており、
前記外層翼の内部における前記内層翼の後縁側外面と前記外層翼の後縁側内面の間に後部空間が区画されている、翼の製造方法であって、
(a)前記内層翼の内面形状に対応する表面形状を有する治具の表面に強化繊維で構成された内層翼織物成形体を形成し、
(b)前記内層翼織物成形体にマトリックスを含浸させて、前記内層翼織物成形体を前記内層翼として仕上げ、
(c)前記(b)の途中又は終了後に、前記治具を前記内層翼織物成形体又は前記内層翼から取外し、
(d)前記(b)及び前記(c)の終了後に、前記後部空間に対応する表面形状を有する補助治具と前記内層翼とを組合せて組合せ体を形成し、
(e)前記(d)の終了後に、前記組合せ体の表面に強化繊維で構成された外層翼織物成形体を形成し、
(f)前記(e)の終了後に、前記外層翼織物成形体にマトリックスを含浸させ、前記外層翼織物成形体を前記外層翼に仕上げ、
(g)前記(f)の途中又は終了後に、前記補助治具を前記外層翼織物成形体又は前記外層翼から取外す、翼の製造方法。 - 請求項1に記載の翼の製造方法であって、
前記複合材料が、セラミックス基複合材料又は炭素基複合材料である。 - ガスタービンエンジンのタービン又は圧縮機に用いられ、強化繊維とマトリックスとからなる複合材料製の翼であって、
強化繊維とマトリックスとからなる複合材料で構成された中空状の外層翼と、
強化繊維とマトリックスとからなる複合材料で構成され、前記外層翼の前縁側内面から後縁側内面に向けて延材し、背側外面が前記外層翼の背側内面に一体的に接合され、腹側外面が前記外層翼の腹側内面に一体的に接合された中空状の内層翼と、を備えており、
前記外層翼の内部における前記内層翼の後縁側外面と前記外層翼の後縁側内面の間に後部空間が区画されている、翼の製造方法であって、
(A)前記内層翼の内面形状に対応する表面形状を有する治具の表面に強化繊維で構成された内層翼織物成形体を形成し、
(B)前記(A)の終了後に、前記後部空間に対応する表面形状を有する補助治具と前記内層翼織物成形体とを組合せて組合せ体を形成し、
(C)前記(B)の終了後に、前記組合せ体の表面に強化繊維で構成された外層翼織物成形体を形成し、
(D)前記(C)の終了後に、前記内層翼織物成形体及び前記外層翼織物成形体にマトリックスを含浸させて、前記内層翼織物成形体及び前記外層翼織物成形体を、それぞれ前記内層翼及び前記外層翼として仕上げ、
(E)前記(D)の途中又は終了後に、前記治具を前記内層翼織物成形体又は前記内層翼から取外すと共に、前記補助治具を前記外層翼織物成形体又は前記外層翼から取外す、翼の製造方法。 - 請求項3に記載の翼の製造方法であって、
前記複合材料が、セラミックス基複合材料又は炭素基複合材料である。 - ガスタービンエンジンのタービン又は圧縮機に用いられ、強化繊維とマトリックスとからなる複合材料製の翼であって、
強化繊維とマトリックスとからなる複合材料で構成された中空状の外層翼と、
強化繊維とマトリックスとからなる複合材料で構成され、前記外層翼の前縁側内面から後縁側内面に向けて延材し、背側外面が前記外層翼の背側内面に一体的に接合され、腹側外面が前記外層翼の腹側内面に一体的に接合された中空状の内層翼と、を備えており、
前記外層翼の内部における前記内層翼の後縁側外面と前記外層翼の後縁側内面の間に後部空間が区画されている、翼の製造方法であって、
(i)前記内層翼の内面形状に対応する表面形状を有した治具の表面に強化繊維で構成された内層翼織物成形体を形成し、
(ii)前記内層翼織物成形体にマトリックスを含浸させて、前記内層翼織物成形体を前記内層翼として仕上げ、
(iii)前記(ii)の途中又は終了後に、前記治具を前記内層翼織物成形体又は前記内層翼から取外し、
(iv)前記(ii)及び(iii)の終了後に、前記後部空間に対応する表面形状を有する前記後部充填部材と前記内層翼とを組合せて組合せ体を形成し、
(v)前記(iv)の終了後に、前記組合せ体の表面に強化繊維で構成された外層翼織物成形体を形成し、
(vi)前記(v)の終了後に、前記外層翼織物成形体にマトリックスを含浸させて、前記外層翼織物成形体を前記外層翼として仕上げる、翼の製造方法。 - 請求項5に記載の翼の製造方法であって、
前記複合材料が、セラミックス基複合材料又は炭素基複合材料である。 - ガスタービンエンジンのタービン又は圧縮機に用いられ、強化繊維とマトリックスとからなる複合材料製の翼であって、
強化繊維とマトリックスとからなる複合材料で構成された中空状の外層翼と、
強化繊維とマトリックスとからなる複合材料で構成され、前記外層翼の前縁側内面から後縁側内面に向けて延材し、背側外面が前記外層翼の背側内面に一体的に接合され、腹側外面が前記外層翼の腹側内面に一体的に接合された中空状の内層翼と、を備えており、
前記外層翼の内部における前記内層翼の後縁側外面と前記外層翼の後縁側内面の間に後部空間が区画されている、
強化繊維とマトリックスとからなる複合材料又は金属材料により構成された後部充填部材が、前記後部空間内に一体的に設けられている、翼の製造方法であって、
(I)前記内層翼の内面形状に対応する表面形状を有する治具の表面に強化繊維で構成された内層翼織物成形体を形成し、
(II)前記(I)の終了後に、前記後部空間に対応する表面形状を有する後部充填部材と前記内層翼織物成形体とを組合せて組合せ体を形成し、
(III)前記(II)の終了後に、前記組合せ体の表面に強化繊維で構成された外層翼織物成形体を形成し、
(IV)前記(III)の終了後に、前記内層翼織物成形体及び前記外層翼織物成形体にマトリックスを含浸させて、前記内層翼織物成形体及び前記外層翼織物成形体を、それぞれ前記内層翼及び前記外層翼として仕上げ、
(V)前記(IV)の途中又は終了後に、前記治具を前記内層翼織物成形体又は前記内層翼から取外す、翼の製造方法。 - 請求項7に記載の翼の製造方法であって、
前記複合材料が、セラミックス基複合材料又は炭素基複合材料である。
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JP2012246919A (ja) * | 2011-05-26 | 2012-12-13 | United Technologies Corp <Utc> | ガスタービンエンジン用のセラミック複合材料製エアフォイル及びベーン並びにセラミック複合材料製エアフォイル形成方法 |
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JP2018058344A (ja) * | 2016-08-15 | 2018-04-12 | ゼネラル・エレクトリック・カンパニイ | 中空セラミックマトリックス複合材料物品、中空セラミックマトリックス複合材料物品を形成するためのマンドレル、および中空セラミックマトリックス複合材料物品を形成するための方法 |
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US20120279631A1 (en) | 2012-11-08 |
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JP5472314B2 (ja) | 2014-04-16 |
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