GB741480A - Method of making void-free fabric laminates - Google Patents

Method of making void-free fabric laminates

Info

Publication number
GB741480A
GB741480A GB21918/52A GB2191852A GB741480A GB 741480 A GB741480 A GB 741480A GB 21918/52 A GB21918/52 A GB 21918/52A GB 2191852 A GB2191852 A GB 2191852A GB 741480 A GB741480 A GB 741480A
Authority
GB
United Kingdom
Prior art keywords
laminate
bleeder
laminates
air
cloth
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
GB21918/52A
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 GB741480A publication Critical patent/GB741480A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

741,480. Laminating apparatus. GOODYEAR AIRCRAFT CORPORATION. Sept. 1, 1952 [Dec. 4, 1951], No. 21918/52. Class 140. A pair of multi-curved, resin-impregnated, void-free laminates is made by supporting one laminate from the inside only and the other laminate from the outside only in substantially the shapes to which they are to be moulded, placing a bleeder cloth over the exposed face of each laminate, covering each laminate and bleeder cloth with a bag, applying fluid pressure below atmospheric to the inside of each bag, nesting one laminate inside the other and while effecting a cure of the laminates applying fluid pressure above atmospheric between the bags. As shown, a plurality of layers of resin-impregnated fibrous material, which may be glass fibre cloth, are placed separately on each of a male and female mould 1, 3 to form the faces of a foamed-in laminate 5, each of which is then covered with a dry bleeder cloth 6 of about ¢ to <SP>1</SP>/ 3 the thickness of the laminate, whereupon a vacuum bag 7 is placed on each of the bleeder cloths 6 and sealed against flanges 2, 4 respectively, by rubber gaskets 8 and metal rings 9 which are fastened to the flanges by cap screws 10. Air outlets 11 are provided for each mould and a bleeder ring 12 made of porous material near the inner flange portions along which the outlets are located and air is simultaneously exhausted from both outlets 11, after which the moulds are nested and spaced from each other by a metal ring 13 sealed against ring 9 and provided with an air pressure inlet 14 through which pressure of about 30 pounds per square inch is admitted between the bags 7 for about 15 to 20 minutes when bleeding of the excess resin and all air is completed, whereupon heat is slowly applied for 30 to 45 minutes to a temperature of about 150‹ F. Curing of the laminate is completed by exposing to a temperature of 180‹ to 200‹ F. for about 2 hours after which the laminates are removed from the moulds and the bleeder cloth peeled off. In forming a foamed-in radome the moulds with the laminates left therein are reassembled for pouring a foam core therebetween.
GB21918/52A 1951-12-04 1952-09-01 Method of making void-free fabric laminates Expired GB741480A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US741480XA 1951-12-04 1951-12-04

Publications (1)

Publication Number Publication Date
GB741480A true GB741480A (en) 1955-12-07

Family

ID=22117998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21918/52A Expired GB741480A (en) 1951-12-04 1952-09-01 Method of making void-free fabric laminates

Country Status (1)

Country Link
GB (1) GB741480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402363A (en) * 2003-05-07 2004-12-08 Esl Healthcare Ltd Moulded shower trays
US11370144B2 (en) 2019-10-08 2022-06-28 Goodrich Corporation Method and system for sequencing veneer to lumbercore

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2402363A (en) * 2003-05-07 2004-12-08 Esl Healthcare Ltd Moulded shower trays
US11370144B2 (en) 2019-10-08 2022-06-28 Goodrich Corporation Method and system for sequencing veneer to lumbercore

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