GB842815A - Method of making laminated hollow shapes - Google Patents

Method of making laminated hollow shapes

Info

Publication number
GB842815A
GB842815A GB23484/58A GB2348458A GB842815A GB 842815 A GB842815 A GB 842815A GB 23484/58 A GB23484/58 A GB 23484/58A GB 2348458 A GB2348458 A GB 2348458A GB 842815 A GB842815 A GB 842815A
Authority
GB
United Kingdom
Prior art keywords
cores
fibre
wrapped
glass
impregnated
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
GB23484/58A
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.)
Goodyear Aircraft Corp
Original Assignee
Goodyear Aircraft Corp
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 Goodyear Aircraft Corp filed Critical Goodyear Aircraft Corp
Publication of GB842815A publication Critical patent/GB842815A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B29C33/505—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible cores or mandrels, e.g. inflatable
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/76—Cores
    • 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
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
    • 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
    • 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
    • B29D24/00—Producing articles with hollow walls
    • B29D24/002—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled
    • B29D24/008—Producing articles with hollow walls formed with structures, e.g. cores placed between two plates or sheets, e.g. partially filled the structure having hollow ridges, ribs or cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • 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
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Details Of Aerials (AREA)

Abstract

842,815. Moulding fibre-resin articles. GOODYEAR AIRCRAFT CORPORATION. July 22, 1958 [Nov. 8, 1957], No. 23484/58. Class 87(2). [Also in Group VIII] Ducted structures such as radomes are made by wrapping cores of slippery plastics material of high melting point and tensile strength e.g. polytetrafluoroethylene, helically or otherwise with glass-fibre or other fabric impregnated with a heat-resistant thermosetting resin, building the wrapped cores into the desired shape with or without additional impregnated fabric layers, curing the assembly with heat and pressure, using for example a vacuum bag or shaped heated platens, and withdrawing the cores. As shown, Figs. 1 and 2, four rectangular cores 4 are assembled together and wrapped with impregnated fabric 12 for each duct of a radome structure 20. Fig. 5 shows the assembled cores with top and bottom layers 14, 15 under pressure between hollow steam or electrically heated platens 16, 17, curved in two planes at right angles. The cores conform to any desired curvature and may be lubricated, e.g. with silicone grease, for ease of withdrawal. Cores of different shapes and used alone or in various assemblies may be used. The cores may contain reinforcing elements of glass-fibre, wire or braid, or metal wire or cable. The impregnating resins may comprise phenolic, silicone or diallylphthalate or triallylcyanurate resins.
GB23484/58A 1957-11-08 1958-07-22 Method of making laminated hollow shapes Expired GB842815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US842815XA 1957-11-08 1957-11-08

Publications (1)

Publication Number Publication Date
GB842815A true GB842815A (en) 1960-07-27

Family

ID=22183952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23484/58A Expired GB842815A (en) 1957-11-08 1958-07-22 Method of making laminated hollow shapes

Country Status (1)

Country Link
GB (1) GB842815A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065087A1 (en) * 1981-05-19 1982-11-24 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Flexing spring of compound fibre material
EP0244120A2 (en) * 1986-04-16 1987-11-04 Courtaulds Plc Composite element
EP0384924A1 (en) * 1989-02-28 1990-09-05 Asahi Kasei Kogyo Kabushiki Kaisha A process for producing a resin product having a bent hollow portion and a core usable for the same process
EP0390535A2 (en) * 1989-03-28 1990-10-03 Plascon Technologies (Proprietary) Limited Method of making a rigid structure
US5176866A (en) * 1989-02-28 1993-01-05 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing a resin product having a bent hollow portion and a core usable for the same process
WO2007001447A3 (en) * 2004-11-24 2007-03-22 Boeing Co Flexible mandrel for highly contoured composite stringer and method of producing said stringer
US7588655B2 (en) 2004-11-24 2009-09-15 The Boeing Company Mandrel with differential in thermal expansion to eliminate wrinkles in ply
ITTO20100597A1 (en) * 2010-07-09 2012-01-10 Alenia Aermacchi Spa METHOD FOR THE REALIZATION OF CABLE ELEMENTS
FR3037845A1 (en) * 2015-06-25 2016-12-30 Rehau Entreprise Sarl TWINNING MOLDING CORE AND ASSOCIATED TOOL
WO2017148997A1 (en) * 2016-03-04 2017-09-08 KTM Technologies GmbH Mould core comprising expansion material

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0065087A1 (en) * 1981-05-19 1982-11-24 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Flexing spring of compound fibre material
EP0244120A2 (en) * 1986-04-16 1987-11-04 Courtaulds Plc Composite element
GB2190724A (en) * 1986-04-16 1987-11-25 Courtaulds Plc Composite element
EP0244120A3 (en) * 1986-04-16 1989-07-12 Courtaulds Plc Composite element
GB2190724B (en) * 1986-04-16 1990-08-08 Courtaulds Plc Composite element
EP0384924A1 (en) * 1989-02-28 1990-09-05 Asahi Kasei Kogyo Kabushiki Kaisha A process for producing a resin product having a bent hollow portion and a core usable for the same process
US5176866A (en) * 1989-02-28 1993-01-05 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing a resin product having a bent hollow portion and a core usable for the same process
EP0390535A2 (en) * 1989-03-28 1990-10-03 Plascon Technologies (Proprietary) Limited Method of making a rigid structure
EP0390535A3 (en) * 1989-03-28 1991-07-31 Plascon Technologies (Proprietary) Limited Method of making a rigid structure
US7357166B2 (en) 2004-11-24 2008-04-15 The Boeing Company Flexible mandrel for highly contoured composite stringer
WO2007001447A3 (en) * 2004-11-24 2007-03-22 Boeing Co Flexible mandrel for highly contoured composite stringer and method of producing said stringer
JP2008521645A (en) * 2004-11-24 2008-06-26 ザ・ボーイング・カンパニー Highly shaped flexible mandrel for composite stringers and method for producing the stringers
US7588655B2 (en) 2004-11-24 2009-09-15 The Boeing Company Mandrel with differential in thermal expansion to eliminate wrinkles in ply
US7901531B2 (en) 2004-11-24 2011-03-08 The Boeing Company Flexible mandrel for highly contoured composite stringer
JP4896035B2 (en) * 2004-11-24 2012-03-14 ザ・ボーイング・カンパニー Highly shaped flexible mandrel for composite stringers and method for producing the stringers
ITTO20100597A1 (en) * 2010-07-09 2012-01-10 Alenia Aermacchi Spa METHOD FOR THE REALIZATION OF CABLE ELEMENTS
EP2404745A1 (en) * 2010-07-09 2012-01-11 Alenia Aermacchi S.p.A. Method for making hollow stiffening elements
US20120006477A1 (en) * 2010-07-09 2012-01-12 Alenia Aermacchi S.P.A. Method for making hollow stiffening elements
US9168681B2 (en) 2010-07-09 2015-10-27 Alenia Aermacchi S.P.A. Method for making hollow stiffening elements
FR3037845A1 (en) * 2015-06-25 2016-12-30 Rehau Entreprise Sarl TWINNING MOLDING CORE AND ASSOCIATED TOOL
WO2017148997A1 (en) * 2016-03-04 2017-09-08 KTM Technologies GmbH Mould core comprising expansion material

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