GB887911A - Improvements in methods and apparatus for moulding plastic materials - Google Patents

Improvements in methods and apparatus for moulding plastic materials

Info

Publication number
GB887911A
GB887911A GB1903957A GB1903957A GB887911A GB 887911 A GB887911 A GB 887911A GB 1903957 A GB1903957 A GB 1903957A GB 1903957 A GB1903957 A GB 1903957A GB 887911 A GB887911 A GB 887911A
Authority
GB
United Kingdom
Prior art keywords
liquid
mould
pipe
membrane
impregnant
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
GB1903957A
Inventor
Harold John Pollard
John Rees
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.)
Rolls Royce Composite Materials Ltd
Original Assignee
Bristol Aeroplane Plastics Ltd
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 Bristol Aeroplane Plastics Ltd filed Critical Bristol Aeroplane Plastics Ltd
Priority to GB1903957A priority Critical patent/GB887911A/en
Publication of GB887911A publication Critical patent/GB887911A/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
    • 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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Landscapes

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

Abstract

887,911. Moulding panels. BRISTOL AEROPLANE PLASTICS Ltd. July 14, 1958 [June 17, 1957], No. 19039/57. Class 87(2). Panels are moulded from fibrous reinforcing material, e.g. glass fibre, and a settable liquid impregnant, e.g. polyester resin, by enclosing the fibrous material in the space 11 between an elastic membrane 2 and a rigid non-porous mould 3, filling the space 11 with the settable liquid, subjecting the membrane 2 to fluid pressure to move it towards the rigid mould 3, the fluid being confined against the side of the membrane opposite to the rigid mould 3 by a rigid backing member 1, and the liquid made to set while the pressure is maintained on the membrane. The fibrous material is first placed over the membrane 2 and the mould 3 then moved into position, co-operating knives 5, 6 serving to trim any excess material. The liquid is introduced through pipe 12 until the mould space 11 is filled and liquid begins to issue from pipe 13, compressed air then being admitted through pipe 9 to the peripheral groove 10 in the backing member 1 so that, starting at its periphery, the fibrous layer is moved outwardly into contact with mould 3 and impregnated with the liquid, excess liquid escaping through pipe 13. The curing of the liquid impregnant, when a thermosetting resin, may be effected by circulating hot fluid between the groove 10 and an outlet pipe at the centre of the backing member. With thermoplastic resins, the impregnant will be supplied in a hot liquid state into a heated mould and the mould then cooled. In an alternative method of working, after filling the mould space 11 with liquid impregnant and allowing air to escape through pipe 13, the pipe 13 is closed so that upon inflation of the membrane 2 excess liquid is driven back through the pipe 12. In this case it is desirable that the inflation pipe 9 should lead into a recess on the surface of the backing member 1 near its centre so that compression of the fibrous material takes place progressively from the centre outwards.
GB1903957A 1957-06-17 1957-06-17 Improvements in methods and apparatus for moulding plastic materials Expired GB887911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1903957A GB887911A (en) 1957-06-17 1957-06-17 Improvements in methods and apparatus for moulding plastic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1903957A GB887911A (en) 1957-06-17 1957-06-17 Improvements in methods and apparatus for moulding plastic materials

Publications (1)

Publication Number Publication Date
GB887911A true GB887911A (en) 1962-01-24

Family

ID=10122738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1903957A Expired GB887911A (en) 1957-06-17 1957-06-17 Improvements in methods and apparatus for moulding plastic materials

Country Status (1)

Country Link
GB (1) GB887911A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746173A1 (en) * 1977-10-14 1979-04-19 Dornier Gmbh DEVICE FOR THE MANUFACTURING OF COMPONENTS FROM FIBER-REINFORCED PLASTICS
DE2902190A1 (en) * 1979-01-20 1980-07-24 Cronenberg Ohg J Mould for gfr. masts - is formed by two conical tubes with rubber sheath inflated by water
FR2472968A1 (en) * 1979-12-20 1981-07-10 Nava Pier Luigi METHOD AND APPARATUS FOR MOLDING REINFORCED RESIN ARTICLES
DE3222939A1 (en) * 1981-06-22 1983-03-17 Pier Luigi Como Nava METHOD AND DEVICE FOR THE PRODUCTION OF HOLLOW BODIES FROM RESIN WITH RESIN, IN PARTICULAR PROTECTIVE HELMETS
US4780262A (en) * 1986-01-15 1988-10-25 The Boeing Company Method for making composite structures
FR2673571A1 (en) * 1991-03-07 1992-09-11 Acb Method of manufacturing a laminate consisting of fibrous reinforcements which are impregnated with thermosetting resin
US5441692A (en) * 1994-02-14 1995-08-15 Thermal Equipment Corporation Process and apparatus for autoclave resin transfer molding
FR2720028A1 (en) * 1994-05-18 1995-11-24 Aerospatiale Variable volume injection mould for composite material parts
GB2324269A (en) * 1997-04-18 1998-10-21 British Aerospace Resin transfer moulding
CN107053570A (en) * 2017-06-02 2017-08-18 朱胜利 Install the profile-followed mould and method of complex abrasion-proof erosion layer additional on hardware

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746173A1 (en) * 1977-10-14 1979-04-19 Dornier Gmbh DEVICE FOR THE MANUFACTURING OF COMPONENTS FROM FIBER-REINFORCED PLASTICS
DE2902190A1 (en) * 1979-01-20 1980-07-24 Cronenberg Ohg J Mould for gfr. masts - is formed by two conical tubes with rubber sheath inflated by water
FR2472968A1 (en) * 1979-12-20 1981-07-10 Nava Pier Luigi METHOD AND APPARATUS FOR MOLDING REINFORCED RESIN ARTICLES
DE3222939A1 (en) * 1981-06-22 1983-03-17 Pier Luigi Como Nava METHOD AND DEVICE FOR THE PRODUCTION OF HOLLOW BODIES FROM RESIN WITH RESIN, IN PARTICULAR PROTECTIVE HELMETS
US4780262A (en) * 1986-01-15 1988-10-25 The Boeing Company Method for making composite structures
FR2673571A1 (en) * 1991-03-07 1992-09-11 Acb Method of manufacturing a laminate consisting of fibrous reinforcements which are impregnated with thermosetting resin
US5441692A (en) * 1994-02-14 1995-08-15 Thermal Equipment Corporation Process and apparatus for autoclave resin transfer molding
FR2720028A1 (en) * 1994-05-18 1995-11-24 Aerospatiale Variable volume injection mould for composite material parts
GB2324269A (en) * 1997-04-18 1998-10-21 British Aerospace Resin transfer moulding
GB2324269B (en) * 1997-04-18 2001-11-21 British Aerospace Resin transfer moulding
CN107053570A (en) * 2017-06-02 2017-08-18 朱胜利 Install the profile-followed mould and method of complex abrasion-proof erosion layer additional on hardware

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