GB1185510A - Method of Manufacturing a Rotor Blade. - Google Patents

Method of Manufacturing a Rotor Blade.

Info

Publication number
GB1185510A
GB1185510A GB47589/67A GB4758967A GB1185510A GB 1185510 A GB1185510 A GB 1185510A GB 47589/67 A GB47589/67 A GB 47589/67A GB 4758967 A GB4758967 A GB 4758967A GB 1185510 A GB1185510 A GB 1185510A
Authority
GB
United Kingdom
Prior art keywords
preform
mould
shells
core
moulding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB47589/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boelkow GmbH
Original Assignee
Boelkow GmbH
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 Boelkow GmbH filed Critical Boelkow GmbH
Publication of GB1185510A publication Critical patent/GB1185510A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • 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
    • 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
    • B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/32—Rotors
    • B64C27/46—Blades
    • B64C27/473—Constructional features

Abstract

1,185,510. Moulding rotor blades. BOLKOW G.m.b.H. 19 Oct., 1967 [8 Aug., 1967], No. 47589/67. Heading B5A. A rotor blade comprising a glass reinforced plastics shell and a rigid expanded plastics core is moulded in a two part mould 4, 5 employing half shells 1, 2 of synthetic resin impregnated fabric or roving and an expanded core preform 3 which is of oversize dimensions, in the width and height directions whereby, on closing the two mould halves 4, 5 together whilst heating by electric elements 9, the surface layers of the core preform 3 soften under the mould closing pressure and an even and continuous pressure is applied by the preform 3 to press the shells 1, 2 against the mould cavity. A reinforcement layer 7, of synthetic resin impregnated fabric, may be applied to the loading end 8 of the core preform 3 prior to the insertion thereof between the shells 1, 2. A lead rod 6 is incorporated in the moulding to provide correction for the axis of gravity of the blade. Excess shrinkage of the preform 3 during the moulding process may be avoided by pro-shrinkage thereof.
GB47589/67A 1967-08-08 1967-10-19 Method of Manufacturing a Rotor Blade. Expired GB1185510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0093851 1967-08-08

Publications (1)

Publication Number Publication Date
GB1185510A true GB1185510A (en) 1970-03-25

Family

ID=6987198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47589/67A Expired GB1185510A (en) 1967-08-08 1967-10-19 Method of Manufacturing a Rotor Blade.

Country Status (2)

Country Link
ES (1) ES357056A1 (en)
GB (1) GB1185510A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187672A (en) * 1986-01-17 1987-09-16 Advanced Composite Components Moulding fibre-reinforced articles
GB2223711A (en) * 1985-02-19 1990-04-18 Sven Erik Malmstrom Moulding fibre reinforced structural members
GB2194911B (en) * 1985-02-19 1991-01-09 Sven Erik Malmstrom A method of manufacturing a elongate structural member.
US5013512A (en) * 1985-02-19 1991-05-07 Malmstroem Sven E Method of manufacturing an elongated structural member
CN101844387A (en) * 2010-05-28 2010-09-29 无锡韦伯风能技术有限公司 Foam sandwich composite material blade and manufacturing process thereof
WO2012010331A1 (en) * 2010-07-21 2012-01-26 Siemens Aktiengesellschaft Mould assembly and method of closing a mould assembly
ITTO20110332A1 (en) * 2011-04-12 2012-10-13 Alenia Aeronautica Spa PROCEDURE FOR MANUFACTURING OF COMPOSITE MATERIALS WITH SANDWICH STRUCTURE CLOSED

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223711A (en) * 1985-02-19 1990-04-18 Sven Erik Malmstrom Moulding fibre reinforced structural members
GB2194911B (en) * 1985-02-19 1991-01-09 Sven Erik Malmstrom A method of manufacturing a elongate structural member.
GB2223711B (en) * 1985-02-19 1991-01-09 Sven Erik Malmstrom A method of manufacturing a elongate structural member.
US5013512A (en) * 1985-02-19 1991-05-07 Malmstroem Sven E Method of manufacturing an elongated structural member
GB2187672A (en) * 1986-01-17 1987-09-16 Advanced Composite Components Moulding fibre-reinforced articles
CN101844387A (en) * 2010-05-28 2010-09-29 无锡韦伯风能技术有限公司 Foam sandwich composite material blade and manufacturing process thereof
CN101844387B (en) * 2010-05-28 2013-04-10 无锡韦伯风能技术有限公司 Foam sandwich composite material blade and manufacturing process thereof
WO2012010331A1 (en) * 2010-07-21 2012-01-26 Siemens Aktiengesellschaft Mould assembly and method of closing a mould assembly
US9102082B2 (en) 2010-07-21 2015-08-11 Siemens Aktiengesellschaft Mould assembly and method of closing a mould assembly
ITTO20110332A1 (en) * 2011-04-12 2012-10-13 Alenia Aeronautica Spa PROCEDURE FOR MANUFACTURING OF COMPOSITE MATERIALS WITH SANDWICH STRUCTURE CLOSED
EP2511082A3 (en) * 2011-04-12 2012-11-07 Alenia Aermacchi S.p.A. Method for manufacturing products made of composite material with a closed-section sandwich structure

Also Published As

Publication number Publication date
ES357056A1 (en) 1970-03-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees