GB903734A - Processes for the manufacture of hollow articles from reinforced synthetic resins - Google Patents

Processes for the manufacture of hollow articles from reinforced synthetic resins

Info

Publication number
GB903734A
GB903734A GB3182558A GB3182558A GB903734A GB 903734 A GB903734 A GB 903734A GB 3182558 A GB3182558 A GB 3182558A GB 3182558 A GB3182558 A GB 3182558A GB 903734 A GB903734 A GB 903734A
Authority
GB
United Kingdom
Prior art keywords
mould
resin
pipe
air
compressed air
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
GB3182558A
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE1957K0033081 external-priority patent/DE1245581B/en
Priority claimed from DEK34557A external-priority patent/DE1262011B/en
Application filed by Individual filed Critical Individual
Publication of GB903734A publication Critical patent/GB903734A/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
    • 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
    • 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
    • B29C70/40—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
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

903,734. Moulding hollow articles. KEPKA, A., and KEPKA, S. Oct. 6, 1958 [Oct. 5, 1957; April 9, 1958], No. 31825/58. Class 87(2). Fibre-resin articles are moulded in a closed mould 1a 2a by removing air from the mould through a pipe 7, and then pressing the fibre and resin by an inflatable bag 3a which is supplied with compressed air through a pipe 9. The resin may be fed to the mould, if necessary under pressure, before, during or after the vacuum operation. The fibrous material may be cured or uncured resin reinforced fibrous mats, which may abut as at 6 against the sides of the mould. In a modification, Fig. 6, preformed resin impregnated mats 45, 46 are placed in a mould cavity 23 between mould parts 20, 21, 22, resin 49 is poured into a mould cavity and the mould tightly sealed by supplying compressed air to an inflatable member 40. Compressed air is also supplied through a pipe 32 to inflatable members 31 to seal channels 24. Vacuum is then applied to pipes 29, 30 to exhaust the air from the mould. The inflatable members 28 are supplied with compressed air to completely seal the mould, and the member 47 is inflated to press the fibre and resin against the mould. Subsequently air is exhausted from the members 38<SP>1</SP>, to allow excess resin to pass from the mould cavity to the channels 24 and out through pipes 42. In a modification, Fig. 7 (not shown), an apparatus similar to that shown in Fig. 6 is located within a closed autoclave. In a further modification, Fig. 8, the moulded article may be formed with a foamed filling by clamping preformed resin sheets 62 between mould parts 60, 61 enclosing foamable or partly foamed material P, placing resin in the mould cavity 66, sucking air from the mould cavity through a pipe 67, and supplying cold or hot air and simultaneously or successively hot air or water through the pipe 65 to foam the material P. Alternatively, the material may be foamed by a chemical agent in which case the pipe 65 is dispensed with. The inner walls of the sheets 62 may be coated with an adhesive. In a further modification, Figs. 9 and 10 (not shown), an inflatable member may be provided within the foamed material to form a hollow in it.
GB3182558A 1957-10-05 1958-10-06 Processes for the manufacture of hollow articles from reinforced synthetic resins Expired GB903734A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1957K0033081 DE1245581B (en) 1957-10-05 1957-10-05 Method for the production of hollow objects from reinforced with fiber material, castable plastics, in particular window frames, doors or the like.
DEK34557A DE1262011B (en) 1958-04-09 1958-04-09 Process for the production of closed hollow bodies from fiber-reinforced cold-curing synthetic resins

Publications (1)

Publication Number Publication Date
GB903734A true GB903734A (en) 1962-08-15

Family

ID=25983043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3182558A Expired GB903734A (en) 1957-10-05 1958-10-06 Processes for the manufacture of hollow articles from reinforced synthetic resins

Country Status (1)

Country Link
GB (1) GB903734A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141440A2 (en) * 1983-09-13 1985-05-15 Matec Holding Ag Method of producing double-walled moulded bodies for the sound-damping of vehicles and engines in general by means of a single pressing step, and double-walled moulded bodies produced by this method
WO1985005069A1 (en) * 1984-05-09 1985-11-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
FR2586966A1 (en) * 1985-09-11 1987-03-13 France Etat Armement MULTICHANNEL STRUCTURES IN COMPOSITE MATERIALS, METHODS AND SEMI-PRODUCTS FOR MANUFACTURING THEREOF
US4681718A (en) * 1984-05-09 1987-07-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
EP0243751A2 (en) * 1986-04-21 1987-11-04 The Budd Company A method of forming an integral reinforced structure having sections extending in different directions
FR2720028A1 (en) * 1994-05-18 1995-11-24 Aerospatiale Variable volume injection mould for composite material parts
CN110450322A (en) * 2019-07-31 2019-11-15 西安航空职业技术学院 Polymer matrix composites molding expansion inflating mold
WO2020122863A1 (en) * 2018-12-11 2020-06-18 General Electric Company Method for manufacturing a fiber reinforced polymer composite beam, particularly a spar beam for a wind turbine rotor blade

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0141440A3 (en) * 1983-09-13 1987-04-01 Matec Holding Ag Method of producing double-walled moulded bodies for the sound-damping of vehicles and engines in general by means of a single pressing step, and double-walled moulded bodies produced by this method
EP0141440A2 (en) * 1983-09-13 1985-05-15 Matec Holding Ag Method of producing double-walled moulded bodies for the sound-damping of vehicles and engines in general by means of a single pressing step, and double-walled moulded bodies produced by this method
WO1985005069A1 (en) * 1984-05-09 1985-11-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
US4681718A (en) * 1984-05-09 1987-07-21 Hughes Aircraft Company Method of fabricating composite or encapsulated articles
EP0215698A3 (en) * 1985-09-11 1989-03-01 Etat-Francais Represente Par Le Delegue General Pour L'armement (Dpag) Composite multichanneled structures, processes and semi-products for producing them
FR2586966A1 (en) * 1985-09-11 1987-03-13 France Etat Armement MULTICHANNEL STRUCTURES IN COMPOSITE MATERIALS, METHODS AND SEMI-PRODUCTS FOR MANUFACTURING THEREOF
EP0215698A2 (en) * 1985-09-11 1987-03-25 ETAT-FRANCAIS représenté par le DELEGUE GENERAL POUR L'ARMEMENT (DPAG) Composite multichanneled structures, processes and semi-products for producing them
EP0243751A2 (en) * 1986-04-21 1987-11-04 The Budd Company A method of forming an integral reinforced structure having sections extending in different directions
EP0243751A3 (en) * 1986-04-21 1989-03-08 The Budd Company A method of forming an integral reinforced structure having sections extending in different directions
FR2720028A1 (en) * 1994-05-18 1995-11-24 Aerospatiale Variable volume injection mould for composite material parts
WO2020122863A1 (en) * 2018-12-11 2020-06-18 General Electric Company Method for manufacturing a fiber reinforced polymer composite beam, particularly a spar beam for a wind turbine rotor blade
CN113382849A (en) * 2018-12-11 2021-09-10 通用电气公司 Method for manufacturing a fibre-reinforced polymer composite beam, in particular an airfoil beam for a wind turbine rotor blade
US11628634B2 (en) 2018-12-11 2023-04-18 General Electric Company Method for manufacturing a fiber reinforced polymer composite beam, particularly a spar beam for a wind turbine rotor blade
CN110450322A (en) * 2019-07-31 2019-11-15 西安航空职业技术学院 Polymer matrix composites molding expansion inflating mold
CN110450322B (en) * 2019-07-31 2021-06-01 西安航空职业技术学院 Resin-based composite material forming expansion inflation mould

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