MX2020009571A - Metodo para fabricar un conjunto de rotor de aspas de turbina eolica. - Google Patents

Metodo para fabricar un conjunto de rotor de aspas de turbina eolica.

Info

Publication number
MX2020009571A
MX2020009571A MX2020009571A MX2020009571A MX2020009571A MX 2020009571 A MX2020009571 A MX 2020009571A MX 2020009571 A MX2020009571 A MX 2020009571A MX 2020009571 A MX2020009571 A MX 2020009571A MX 2020009571 A MX2020009571 A MX 2020009571A
Authority
MX
Mexico
Prior art keywords
root
plate
inserts
blade mold
manufacturing
Prior art date
Application number
MX2020009571A
Other languages
English (en)
Inventor
Andrew Mitchell Rodwell
Alan M Walker
David Patrick Cripps
James Paul Davidson
Lange Miguel Cabrera
Nicholas Michael Seruntine
Original Assignee
Gen Electric
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Publication of MX2020009571A publication Critical patent/MX2020009571A/es

Links

Classifications

    • 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
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • 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
    • B29C70/443—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 and impregnating by vacuum or injection
    • 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
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
    • B29C70/547—Measures for feeding or distributing the matrix material in the reinforcing structure using channels or porous distribution layers incorporated in or associated with the product
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
    • B29C70/76—Moulding on edges or extremities of the preformed part
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • 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
    • 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
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • 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
    • B29L2031/082—Blades, e.g. for helicopters
    • B29L2031/085—Wind turbine blades
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/23—Manufacture essentially without removing material by permanently joining parts together
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Un método para fabricar un conjunto de raíz de aspa de rotor que incluye colocar capa (s) de revestimiento exterior sobre un molde de espa y disponer una placa de raíz con una pluralidad de orificios pasantes adyacentes a una cara extrema del molde de aspa. El método también incluye colocar una pluralidad de insertos de raíz encima de la(s) capa(s) de revestimiento exterior y apoyarse contra la placa de raíz, definiendo cada uno de los insertos de raíz un orificio de fijación. El método también incluye insertar un sujetador de raíz en cada uno de los orificios pasantes alineados y los orificios longitudinales del sujetador. Además, el método incluye colocar la(s) capa(s) de superficie interna sobre los insertos de raíz. Asimismo, la placa de raíz puede incluir al menos un orificio de fluido configurado a su través para proporcionar una placa de raíz no hermética a los gases. Alternativamente, se puede disponer al menos un sello entre la placa base y el molde del aspa que forme una conexión no hermética al gas con una o ambas de la placa base o el molde del aspa durante un proceso de infusión al vacío. Por tanto, el método incluye asegurar la(s) capa(s) de superficie exterior, los insertos de raíz, la(s) capa(s) de superficie interior y los sujetadores de raíz juntos para formar el conjunto de raíz mediante el proceso de infusión al vacío.
MX2020009571A 2018-03-16 2019-03-15 Metodo para fabricar un conjunto de rotor de aspas de turbina eolica. MX2020009571A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/923,043 US11167507B2 (en) 2018-03-16 2018-03-16 Method for manufacturing a wind turbine rotor blade root assembly
PCT/US2019/022465 WO2019178476A1 (en) 2018-03-16 2019-03-15 Method for manufacturing a wind turbine rotor blade root assembly

Publications (1)

Publication Number Publication Date
MX2020009571A true MX2020009571A (es) 2021-04-28

Family

ID=65952191

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2020009571A MX2020009571A (es) 2018-03-16 2019-03-15 Metodo para fabricar un conjunto de rotor de aspas de turbina eolica.

Country Status (6)

Country Link
US (1) US11167507B2 (es)
EP (1) EP3765733B1 (es)
CN (1) CN112154267B (es)
MA (1) MA52147A (es)
MX (1) MX2020009571A (es)
WO (1) WO2019178476A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT3711938T (pt) * 2019-03-21 2021-12-21 Lm Wind Power As Fabrico de uma parte da casca de pá de turbina eólica
CN112157702B (zh) * 2020-08-25 2022-04-01 中材科技（邯郸）风电叶片有限公司 一种风电叶片叶根蒙皮切割装置
CN113352655A (zh) * 2021-06-16 2021-09-07 上海尔华杰机电装备制造有限公司 一种一体成型叶片的加工工艺
EP4359667B1 (en) * 2021-06-23 2026-01-28 TPI Technology, Inc. Quick adjust root plate attachment for wind turbine blade molds
EP4108428B1 (en) 2021-06-24 2026-04-01 Nordex Blade Technology Centre APS A method of fastening a joining insert to a wind turbine rotor blade element
EP4119790A1 (en) * 2021-07-12 2023-01-18 General Electric Renovables España S.L. Wind turbine blade assembly and methods
EP4382285A1 (en) * 2022-12-05 2024-06-12 Nordex Blade Technology Centre APS A method of manufacturing a wind turbine rotor blade part having an embedded placeholder
WO2026032485A1 (en) * 2024-08-09 2026-02-12 Vestas Wind Systems A/S Positioning device for a wind turbine blade
CN119163550B (zh) * 2024-10-29 2025-06-03 中材科技风电叶片股份有限公司 叶根结构、风电叶片以及风力发电机组

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002030991A (ja) * 2000-07-17 2002-01-31 Keihin Corp 定真空式気化器における負圧作動弁
PL205310B1 (pl) * 2002-01-11 2010-04-30 Fiberline As Sposób wytwarzania elementu konstrukcyjnego wzmocnionego włóknami oraz sposób wytwarzania zespołu zamocowania śrubowego, zespołu śrubowego lub zespołu łącznikowego do stosowania we wzmocnionym włóknami elemencie konstrukcyjnym
JP4691565B2 (ja) 2004-12-29 2011-06-01 ヴェスタス ウィンド システムズ アー／エス 固定部材を有する風力タービンブレードシェル部材を製造する方法および固定部材を有する風力タービンブレード
JP2006192797A (ja) * 2005-01-14 2006-07-27 Kanto Auto Works Ltd 真空成形方法および真空成形型
CN101801651B (zh) * 2007-06-29 2014-05-07 Lm玻璃纤维制品有限公司 用于制造复合材料结构的方法和复合材料结构
DE102008021498A1 (de) 2008-04-29 2009-11-05 Repower Systems Ag Verfahren zur Fertigung eines Blattanschlusses eines Rotorblatts, ein Blattanschluss und ein Befestigungselement für einen Blattanschluss
CN101413479A (zh) 2008-11-25 2009-04-22 上海应用技术学院 风力机预埋式法兰叶根及其制造工艺
EP2275673B1 (en) 2009-07-17 2018-01-24 Vestas Wind Systems A/S Manufacturing WTG blade having a spar
EP2481559B1 (en) 2011-02-01 2019-05-01 Siemens Aktiengesellschaft Preparing a wind turbine blade for correct positioning in a subsequent assembly step
CN102220936B (zh) 2011-05-25 2013-05-15 北京世纪威能科技有限公司 一种竹制复合材料叶片根部结构及其制造方法
US8956115B2 (en) * 2012-01-20 2015-02-17 General Electric Company Blade extension and rotor blade assembly for wind turbine
ES2382245B1 (es) 2012-01-31 2013-05-16 Argolabe Ingenieria, S.L. Método de fabricación de pala de aerogenerador
EP2623769A1 (en) 2012-02-01 2013-08-07 LM Wind Power A/S Wind turbine blade with a connection ring forming part of a blade root - to - hub connection
WO2013113817A1 (en) 2012-02-02 2013-08-08 Lm Wp Patent Holding A/S A post-moulding station and an associated method of manufacture of a wind turbine blade
CA2863288C (en) 2012-02-02 2020-09-15 Lm Wp Patent Holding A/S A cradle for a wind turbine blade
CN203019567U (zh) 2013-01-16 2013-06-26 北京金风科创风电设备有限公司 预埋螺栓风机叶片根部法兰安装定位装置
CN103061995B (zh) 2013-01-22 2015-06-03 重庆通用工业(集团)有限责任公司 兆瓦级风电叶片叶根螺杆预埋工艺方法
DK3045297T3 (en) 2013-05-31 2018-04-09 Lm Wind Power Int Tech Ii Aps Mold and method of assisting in the manufacture of a wind turbine blade shell
CN103692660B (zh) 2013-12-16 2016-02-10 中材科技风电叶片股份有限公司北京分公司 一种在后打孔叶片模具上制作预埋叶片的方法及装置
CN203783821U (zh) 2014-03-31 2014-08-20 北京金风科创风电设备有限公司 一种风电叶片的根部法兰及风电叶片
CN104110352B (zh) 2014-06-19 2017-01-11 连云港中复连众复合材料集团有限公司 一种具有方形预埋螺栓套的风机叶片根部的制备方法
EP2963282B1 (en) 2014-07-04 2018-10-24 Siemens Aktiengesellschaft Mounting ring arrangement for wind turbine blade
CN105269717B (zh) 2014-10-21 2017-12-26 北京玻钢院复合材料有限公司 风电叶片模具及其制造方法
CN204109193U (zh) 2014-10-21 2015-01-21 北京玻钢院复合材料有限公司 风电叶片模具
CN105773879B (zh) 2014-12-16 2018-11-06 中材科技风电叶片股份有限公司 一种风机叶片预埋根部法兰装置
CN104589093B (zh) 2015-01-30 2017-01-18 迪皮埃风电叶片大丰有限公司 一种风电叶片根部钻孔定位工装的定位方法
CN204449947U (zh) 2015-01-30 2015-07-08 迪皮埃风电叶片大丰有限公司 一种风电叶片根部钻孔定位工装
US9970304B2 (en) * 2015-07-22 2018-05-15 General Electric Company Rotor blade root assembly for a wind turbine
CN205271786U (zh) 2015-11-19 2016-06-01 中材科技风电叶片股份有限公司 零度标示位置定位装置
CN105459417B (zh) 2015-12-11 2017-08-08 北京金风科创风电设备有限公司 叶片根端预埋装置和根端预埋叶片的生产方法
CN106121935A (zh) 2016-08-26 2016-11-16 三重型能源装备有限公司 用于叶片的螺栓套组件、叶片和叶片的制造方法
CN106438195A (zh) * 2016-10-26 2017-02-22 中材科技风电叶片股份有限公司 风电叶片的根部结构及其制造方法、风电叶片

Also Published As

Publication number Publication date
US20190283347A1 (en) 2019-09-19
MA52147A (fr) 2021-01-20
EP3765733B1 (en) 2026-01-28
CN112154267A (zh) 2020-12-29
US11167507B2 (en) 2021-11-09
EP3765733A1 (en) 2021-01-20
WO2019178476A1 (en) 2019-09-19
CN112154267B (zh) 2024-01-23

Similar Documents

Publication Publication Date Title
MX2020009571A (es) Metodo para fabricar un conjunto de rotor de aspas de turbina eolica.
US20140369849A1 (en) Composite fibre component for a rotor blade, device for manufacturing a composite fibre component for a rotor blade and the method for manufacturing a composite fibre component for a rotor blade
AR061591A1 (es) Miembro de sujecion,trama de miembros de sujecion y metodo para moldear un miembro de sujecion
MX2018016076A (es) Aspa de aerogenerador con juntas de encolado mejoradas y metodo relacionado.
CN204809307U (zh) 二次电池注液孔用组件
BR112019005223A2 (pt) arranjo de revestimento para proteção contra o desgaste e método para fixar elementos de revestimento a uma estrutura de suporte
AR061421A1 (es) Insertos de tubos
ATE441776T1 (de) Axialer rotorabschnitt für einen rotor einer turbine
MX2017013727A (es) Articulo absorbente con ajuste de contorno.
WO2011055524A1 (ja) 複合材料構造物製造用治具
JP2006329183A (ja) プラットフォームを有するガスタービン動翼およびその形成方法
CA2784413C (en) Fireproof door and fireproof door frame
ES2571554T3 (es) Métodos y sistemas para unir entre sí o curar conjuntamente piezas compuestas usando un aparato de SMP rígido/maleable
EP1959097A3 (en) Impingement skin core cooling for gas turbine engine blade
PE20120132A1 (es) Contenedor dispensador de sustancia nutritiva
BR112016007481B1 (pt) Método para fabricar um estágio de uma turbina a vapor, setor para a montagem e estágio para uma turbina a vapor
MX2019001024A (es) Celdas solares escalonadas superpuestas a lo largo de bordes no lineales.
CL2023002098A1 (es) Herramienta de aislamiento de tuberías con elemento de sellado de espacios grandes compuesto por minicabezales de presión y elementos de sellado estructural en forma de iris
ES2739645T3 (es) Procedimiento y dispositivo para la producción de un componente de turbina eólica de un material compuesto de fibras
MX2022010744A (es) Cierres a tope y bases para los mismos.
AR120369A1 (es) Inserto de moldeo para hormigón, método para producir un inserto de moldeo para hormigón y método para producir un elemento de hormigón
MX392583B (es) Ensamble de fusible simetrico de varias partes.
ES2421907T3 (es) Estructura de pared para la delimitación de una trayectoria de gas caliente
BR112018070338A2 (pt) recipiente flexível para conservar fluido, método para drenar fluido do mesmo e método para fabricação de um recipiente para fluidos
BRPI0800899A (pt) segmento de bocal de turbina e método de reparo