WO2012113966A1 - Procedimiento para la fabricación de palas eólicas, palas para hélices, alas o estructuras similares y estructura en forma de pala obtenida mediante dicho procedimiento - Google Patents
Procedimiento para la fabricación de palas eólicas, palas para hélices, alas o estructuras similares y estructura en forma de pala obtenida mediante dicho procedimiento Download PDFInfo
- Publication number
- WO2012113966A1 WO2012113966A1 PCT/ES2012/070118 ES2012070118W WO2012113966A1 WO 2012113966 A1 WO2012113966 A1 WO 2012113966A1 ES 2012070118 W ES2012070118 W ES 2012070118W WO 2012113966 A1 WO2012113966 A1 WO 2012113966A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wings
- prepreg
- manufacture
- blades
- procedure
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000002966 varnish Substances 0.000 claims abstract description 3
- 230000008569 process Effects 0.000 claims description 17
- 239000006260 foam Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 8
- 238000001723 curing Methods 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims description 2
- 229920000271 Kevlar® Polymers 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- -1 hybrids Substances 0.000 claims description 2
- 239000004761 kevlar Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002071 nanotube Substances 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 238000001029 thermal curing Methods 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 239000006082 mold release agent Substances 0.000 claims 1
- 239000005020 polyethylene terephthalate Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000001802 infusion Methods 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010422 painting Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K3/00—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like
- B21K3/04—Making engine or like machine parts not covered by sub-groups of B21K1/00; Making propellers or the like blades, e.g. for turbines; Upsetting of blade roots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
- F03D1/0641—Rotors characterised by their aerodynamic shape of the blades of the section profile of the blades, i.e. aerofoil profile
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y10T29/49336—Blade making
- Y10T29/49337—Composite blade
Definitions
- the invention refers to a process for the manufacture of wind blades, propeller blades, wings or similar structures and a shovel-shaped structure or the like obtained by said method.
- the object of the invention focuses, on the one hand, on a process that is especially designed for the manufacture of wind blades or similar structures in a single phase or stroke, what we would call “single biological process", consisting of that the upper face of the blade, known as “extrados”, the lower face of the blade, known as “intrados” and the structural element or internal stringer of the blade, are formed at the same time.
- the proposed process contemplates the use, as a product for the realization of the blades, of a type of material called "PREPREG", consisting of a product formed by reinforcing fibers already impregnated in a matrix or resin, with what not to expect to impregnate fibrous reinforcements, as occurs in infusion or injection processes. Fibrous reinforcements are already impregnated by the manufacturer of "PREPREG" for the manufacture of the blades.
- the recommended process contemplates the manufacture of the blade forming it from two pieces that correspond to the leading edge and the trailing edge of the blade, in contrast to the pieces in the form of extrados and intrados shell with which the blades made from conventional systems are formed, advantageously obtaining a structure that has remarkably improved mechanical characteristics and flability.
- the field of application of the present invention falls within the technical sector, both of the industry dedicated to the manufacture of wind blades and of the industry dedicated to the manufacture of aeronautical structures or other industries, since the manufacturing process to which The invention is applicable to propellers, aircraft wings or parts with similar structural characteristics and uses similar to those of wind blades.
- the wind blades are manufactured using two molds on which the upper skin and the lower skin are produced, depositing layers of dry reinforcement fibers on them, as well as foams, cores and stiffening elements that are subsequently impregnate with resins by infusion techniques or even manually.
- the prepregs with their corresponding cores, foams or stiffeners, are deposited on the molds of the future skins, and as a variant, if the blades are not very large, the resins are injected onto the dry reinforcements, needing, logically, , of closing countermoulds, which makes the manufacturing system significantly more complicated and expensive.
- skins and accessories are manufactured separately, either by normal contact, infusion or prepreg, and once polymerized they are joined by means of adhesives, each skin with its mold, seeking to build a unique piece.
- the objective of the present invention is, therefore, to develop a new method of manufacturing the blades in which said inconveniences are avoided, it should be noted that, on the part of the applicant, the existence of any other procedure or invention of similar application is unknown. present technical, structural and constitutive characteristics similar to those of the procedure recommended herein.
- the heating of the molds can be achieved through the installation of ducts through which circulate calothermic fluids, such as oils, which allow rapid regulation and thermal control.
- calothermic fluids such as oils
- the main difference of the procedure proposed in the present invention begins because the female molds are no longer properly the extrados mold and intrados mold, but leading edge mold and exit edge mold, therefore, the union between the pieces as until now between the union edges of the upper skin extradós with the lower skin intrados.
- This fact supposes a difference of great importance that affects the reliability of the blade against the conventional union by edges of the same, contributing an aerodynamic point of leading edge and exit, total elimination of the adhesive, reduction of the weight, reduction of the cost and increase of the mechanical properties of the blade.
- both molds of leading edge and leading edge they are deposited by means of numerical control machines, and following a sequence pre-established by calculation, the different layers of prepreg, one above the other, with a small automatic compaction, according to sequence, including if necessary and at some point of contact, of some stiffening element, such as foam, raft or core.
- some stiffening element such as foam, raft or core.
- the prepreg deposited, both in the attack and in the output mold, is in crude, sticky, what is known as State B.
- State B To eliminate environmental pollution and, at the same time, to eliminate occluded air as much as possible and contribute step to compaction and immobilization, it is protected with a vacuum film that is not necessary to remove later, remaining as a protector of the laminate.
- a structural reinforcement is manufactured, preferably in the form of C, also made in prepreg.
- a male tool is previously manufactured, covered with a C-shaped shell in composite, which is polymerized either by temperature or by hybrid system (temperature-radiation). Once this C shell is polymerized, the tool will act as a lost male mold on which the raw prepeg is deposited with a numerical control machine and according to a pre-established sequence.
- This structural stringer will act as stiffening or stiffening element and transmitter of the loads that act on both extrados and intrados skins, from the root to the end of the blade.
- This procedure allows, in the case of a supporting surface, to gather the main axes - elastic, torsion, gravity - in a limited and relatively small area.
- Figure number 1 Shows a sectional view of an example of a shovel with a single structural reinforcing beam, obtained by the process object of the invention, the parts and elements that comprise it being appreciated.
- Figures numbers 2 -A and 2-B.- They show each sectional view of the leading edge and the structural beam that are part of the blade, before joining and joining, respectively.
- Figures 3-A and 3-B. They show each sectional view of the trailing edge that is part of the blade, represented, respectively, before and after fitting on the crossbar coupled to the leading edge, to complete the blade .
- Figures 4 to 20. They show, in respective sectional views, the different phases of the manufacturing process of the blade-shaped structure, according to the process object of the invention, each of the steps that are followed being appreciated in it to make a shovel like the one shown in the example of figure 1.
- a shovel-shaped structure (1) which will be formed by a leading edge (2), an exit edge (3) and, at least one internal reinforcement beam (4) consisting of pieces made from sheets of prepreg material.
- said method comprises the use of a female mold of the leading edge (5) and a female mold of the leading edge (6), as well as a third mold (7) with which a male tool (8) is obtained. which acts as a lost mold to manufacture the structural stringer (4), and which can have a C-shape or a closed drawer or even a double T, said male tool (8) being made of composite.
- the inner faces of said female molds of the leading edge (5) and exit (6) will receive a surface treatment with a release agent, as in any composites process.
- This agent will be applied automatically, with robot or numerical control machine.
- a specific gelcoat or interior varnish is applied, which will be the outer protector of the future structure (1) against the environment and inclement conditions, also applied automatically by means of a robot.
- the application of the prepreg material in superimposed layers begins, according to a previously calculated sequence, which is applied in the form of fabrics or tapes, which can be both glass, carbon, aramid, hybrid, kevlar, thermoplastic, nanotubes, impregnated with resin-vinyl ter, Epoxy, PP, PET, among others of variable composition, in grammages that can range from 500g / m2 to 2000g / m2 and can present a variable configuration, as appropriate, for example, one-dimensional UD , a veil, biaxial, triaxial etc.
- crossbar (4) that is obtained from the mentioned male tool (8), it is done in the same way, only by applying the prepreg layers directly on the lost male tool (8), not even the release agent is necessary nor the "gelcoat".
- the prepreg laminates are finally covered with a vacuum film proceeding to connect them to a pump, to which they will be connected a few minutes in order to ensure not only the extraction of the possible occluded air between the laminates, but also to improve the compaction between the prepreg layers. It should be noted that care should be taken to place strips of "peelable fabric" on the parts of the prepreg sheet that will be in direct contact with each other, as is the case with the reinforcing beam (4), on the edges of attack (2) and exit edges (3).
- the female molds of the leading edges (5) and exit (6) are metallic, being preferably made of a steel sheet of suitable thickness, as a non-limiting suggestion 3 or 4 mm, which is curved according to the desired shape, constituting this a work of precision boilermaking.
- a steel sheet of suitable thickness as a non-limiting suggestion 3 or 4 mm, which is curved according to the desired shape, constituting this a work of precision boilermaking.
- reinforcing metal signs (5th and 6th) are welded, to give consolidation and dimensional rigidity to said molds, necessary for handling them.
- the molds (5 and 6) have, on the outside, a heating system, which may be electric or other, in order to allow temperature adjustable at all times, to achieve the cure of prepreg sheets .
- Said heating system should reach a temperature of up to 150 ° C, normally 120 ° C being the maximum working temperature to achieve polymerization in less than one hour.
- the molds likewise, have, in certain areas, small holes that are connected to the outside of the mold with some hoses, which allow, in turn, to connect to a compressor. With this, once the polymerization is complete, pressurized air is applied through said holes to ensure the expulsion of the piece out of the mold.
- the holes are protected with adhesive tape prior to the application of the gelcoat in the mold. It should be noted that inside the blade or structure (1), which is completely hollow, and prior to polymerization, a flow of hot air can also be applied, which will cause prepreg laminate heating to be achieved from within and from the outside simultaneously, determining a faster and more homogeneous polymerization, and avoiding thermal gradients.
- the blade With the manufacturing process described, the blade will leave the mold almost finished, without the need to reheat, sand, polish or paint, which means cleaning and speed in the production process and final economy, as well as weight reduction. However, once the blade has been removed from the mold at the end of the manufacturing process, it may be subjected, if required, to the classic finishing processes.
- the mold can be seen female of the leading edge (5), showing a stiffening plate (5a) of the mold plate and the incorporation in said mold of fins (10) that are rotatable and mobile, which allow the deposition of the prepreg sheets in the interior of the mold marking the projection (9) to subsequently receive the prepreg laminate forming the part of the trailing edge (3).
- Figure 5 shows the said raised mobile fins (10), arranged to receive the prepeg layers that will form the leading edge piece (2), which is shown once deposited in this female attack mold (6) in the figure 6.
- Figures 7 to 9 show the formation of the beam (4), by using the third mold (7), which will preferably be metallic, conforming on it the composite male tool (8) so that it constitutes a species of shell that acts as a support or lost mold, and on which the prepreg material that forms the said stringer (4) is incorporated.
- the stringer (4) is formed, it is placed on the female mold of the leading edge (5) in which the prepreg that will form the leading edge piece (2) has been incorporated, both pieces being fitted, as shown in Figure 11 .
- the female mold of the trailing edge (6) that also incorporates reinforcing tables (6a), is formed by two articulated parts by means of a hinge (11), which allows the folding movement of said pieces to form the mold.
- the prepreg lamination process is carried out first with the same unfolding, and just in the hinge (11) several prepreg longitudinal ribbons or strips are deposited, to reinforce and consolidate said zone, since that zone constitutes the end of the part of the trailing edge (3) of the structure (1).
- a piece of foam wedge, raft or bee core of the aforementioned can be added.
- Figure 14 shows the female mold of the trailing edge (6) once folded and folded, containing inside the prepreg laminate, and the vacuum film installed in the previous phase, being able to incorporate, if necessary, a wedge (not represented).
- Figures 15 and 16 again show the female mold of the leading edge (5) with the prepreg material that will form the leading edge part (2) and the crossbar (4), in the phase in which the fins (10 ) are retracted, to receive the female mold of the exit edge (6) with the prepreg that will form the part of the exit edge (3), as shown in Figure 17.
- Figures 19 and 20 show the withdrawals successive of the female molds of the trailing and leading edge, in order to obtain the finished blade or structure (1) as shown in Figure 1.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Wind Motors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12749893.9A EP2679806A1 (en) | 2011-02-25 | 2012-02-27 | Method for manufacturing wind turbine blades, blades for propellers, wings or similar structures, and structure in the shape of a blade produced by means of said method |
US14/001,092 US20130340252A1 (en) | 2011-02-25 | 2012-02-27 | Method for manufacturing wind turbine blades, blades for propellors, wings, or similar structures, and structure in the form of a blade obtained by means of this procedure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP201130249 | 2011-02-25 | ||
ES201130249A ES2387432B1 (es) | 2011-02-25 | 2011-02-25 | Procedimiento para la fabricación de palas eólicas, palas para hélices, alas o estructuras similares y estructura en forma de pala obtenida mediante dicho procedimiento |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012113966A1 true WO2012113966A1 (es) | 2012-08-30 |
Family
ID=46720140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2012/070118 WO2012113966A1 (es) | 2011-02-25 | 2012-02-27 | Procedimiento para la fabricación de palas eólicas, palas para hélices, alas o estructuras similares y estructura en forma de pala obtenida mediante dicho procedimiento |
Country Status (4)
Country | Link |
---|---|
US (1) | US20130340252A1 (es) |
EP (1) | EP2679806A1 (es) |
ES (1) | ES2387432B1 (es) |
WO (1) | WO2012113966A1 (es) |
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EP3848574A1 (de) | 2020-01-09 | 2021-07-14 | Wobben Properties GmbH | Verfahren zum herstellen eines windenergieanlagen-rotorblattes |
CN113172805A (zh) * | 2021-04-29 | 2021-07-27 | 东台迈盛智能科技有限公司 | 一种紧密抵压式风电叶片模具 |
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WO2014079458A1 (en) * | 2012-11-20 | 2014-05-30 | Vestas Wind Systems A/S | Wind turbine blade with lightning protection |
EP3227091A1 (en) * | 2014-12-04 | 2017-10-11 | Hexcel Holding GmbH | Improved laminate |
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US10072632B2 (en) | 2015-06-30 | 2018-09-11 | General Electric Company | Spar cap for a wind turbine rotor blade formed from pre-cured laminate plates of varying thicknesses |
US10077758B2 (en) | 2015-06-30 | 2018-09-18 | General Electric Company | Corrugated pre-cured laminate plates for use within wind turbine rotor blades |
US10107257B2 (en) | 2015-09-23 | 2018-10-23 | General Electric Company | Wind turbine rotor blade components formed from pultruded hybrid-resin fiber-reinforced composites |
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US10919233B2 (en) | 2016-01-08 | 2021-02-16 | Sikorsky Aircraft Corporation | Self-clamping self-curing bond method |
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US10422316B2 (en) | 2016-08-30 | 2019-09-24 | General Electric Company | Pre-cured rotor blade components having areas of variable stiffness |
US10563636B2 (en) * | 2017-08-07 | 2020-02-18 | General Electric Company | Joint assembly for a wind turbine rotor blade |
CN110303693B (zh) * | 2019-06-21 | 2021-08-20 | 江西洪都航空工业集团有限责任公司 | 一种小型翼面复合材料夹芯件的模压成型方法 |
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CN112092411B (zh) * | 2020-07-31 | 2022-03-04 | 北京卫星制造厂有限公司 | 一种小口径、长尺寸非等厚薄形矩形管件成型工装及方法 |
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Also Published As
Publication number | Publication date |
---|---|
ES2387432A8 (es) | 2013-02-22 |
US20130340252A1 (en) | 2013-12-26 |
ES2387432B1 (es) | 2013-07-29 |
EP2679806A1 (en) | 2014-01-01 |
ES2387432A1 (es) | 2012-09-21 |
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