WO1989005717A1 - Procede d'application d'un melange de matiere plastique et de fibres de renforcement dans un moule - Google Patents

Procede d'application d'un melange de matiere plastique et de fibres de renforcement dans un moule Download PDF

Info

Publication number
WO1989005717A1
WO1989005717A1 PCT/SE1988/000681 SE8800681W WO8905717A1 WO 1989005717 A1 WO1989005717 A1 WO 1989005717A1 SE 8800681 W SE8800681 W SE 8800681W WO 8905717 A1 WO8905717 A1 WO 8905717A1
Authority
WO
WIPO (PCT)
Prior art keywords
mould
batch
reinforcing fibres
applying
support element
Prior art date
Application number
PCT/SE1988/000681
Other languages
English (en)
Inventor
Gunnar Westerlund
Original Assignee
Ab Volvo
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 Ab Volvo filed Critical Ab Volvo
Publication of WO1989005717A1 publication Critical patent/WO1989005717A1/fr

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
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/08—Feeding of the material to be moulded, e.g. into a mould cavity of preforms to be moulded, e.g. tablets, fibre reinforced preforms, extruded ribbons, tubes or profiles; Manipulating means specially adapted for feeding preforms, e.g. supports conveyors
    • 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
    • B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
    • 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
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
    • 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
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
    • 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
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/305—Spray-up of reinforcing fibres with or without matrix to form a non-coherent mat in or on a mould
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/08—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
    • 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
    • B29C43/006—Pressing and sintering powders, granules or fibres
    • 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
    • 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
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • 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
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • B29K2105/128—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles in the form of a mat
    • 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
    • B29K2105/25—Solid
    • B29K2105/253—Preform

Definitions

  • the present invention relates to a method of applying a batch of material consisting of plastics material admixed with reinforcing fibres to a mould surface of one mould half of a mould tool.
  • the SMC-technique for the manufacture of large reinforced plastic products of uniform thickness with a finish on both sides utilizes leather-like sheets having a thickness of some millimeters and produced from a mixture of fibres, resin and filler with the fibres oriented in the plane of the surface. A number of such sheets are placed on a part of the mould surface of one mould half and move out under the influence of mould pressure, to fill the mould cavity.
  • the SMC-technique is encumbered with several drawbacks, one of which is the wide spread or variance of mechanical strength values resulting from unfavourable flow of the material.
  • the object of the present invention is to provide an, alternative method to the SMC-method by means of whicft ⁇ material can be charged effectively to the whole of a mould surface without risk of the charge losing its shape or disintegrating during the handling procedure.
  • the mould batch is preferably sprayed onto a foil sheet which is held by suction ag;ainst a perforated suction box.
  • the foil may consist of a mate- rial which will adhere firmly to the mould batch and can be allowed to remain on the final moulded product.
  • the foil may be prepared from or consist of material which can be readily torn lose.
  • the present invention ensures that a mould surface will be covered completely without risk of the mould batch losing its shape or disintegrating.
  • the reference numeral 1 identifies a suction box having perforations 2 and an outlet 3 for connection to a fan.
  • the suction box 1 has a configuration which is complementary to the shape of a mould cavity 4 of one mould half 5 of a mould tool which is intended for pressure moulding composite material components, such as thermosetting resins reinforced with glass fibre.
  • a thin plastic foil sheet 7 is placed over the suction box 1 and held firmly thereagainst by suction, whereafter fibres and matrix material ⁇ liquid plastics mixture) is sprayed over the foil 7 with the aid of a spray/fibre cutter 9 (Figure 1),
  • the mould half 5 is lowered upside down over the mould batch ( Figure 2) so that the mould surface 6 will finally rest against the mould batch.
  • the whole system i.e. suction box 1, mould half 5 and the intermediate mould batch, is then turned so that the mould half 5 is turned the right way up ( Figure 3).
  • the suction box 1 is now lifted away ( Figure 4), wherewith air is optionally blown out through the perforations 2 to facilitate removal of the suction box.
  • An upper mould half 10 is then lowered over the mould half 5 ( Figure 5) and pressure is applied so as to compact the mould batch.
  • the mould batch has set (hardened), the mould halves 5 and 10 are separated and the moulded article removed from the mould.

Abstract

Un procédé consistant en l'application d'une charge de matière comprenant un mélange de matières plastiques, mélangé avec des fibres de renforcement, sur une surface de moulage d'une moitié de moule. Une feuille mince (7) est maintenu fermement par aspiration contre une boîte d'aspiration (1), dont la forme est complémentaire à celle de la surface du moule (6). La charge de moulage (8) est pulvérisée sur ladite feuille, après quoi on abaisse la moitié de moule (5) à l'envers sur ladite charge de moulage. On retourne ensuite le système du bon côté puis on retire ladite boîte d'aspiration.
PCT/SE1988/000681 1987-12-15 1988-12-14 Procede d'application d'un melange de matiere plastique et de fibres de renforcement dans un moule WO1989005717A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8705003-5 1987-12-15
SE8705003A SE459798B (sv) 1987-12-15 1987-12-15 Saett att anbringa en materialsats av plast med armering i ett formverktyg

Publications (1)

Publication Number Publication Date
WO1989005717A1 true WO1989005717A1 (fr) 1989-06-29

Family

ID=20370604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1988/000681 WO1989005717A1 (fr) 1987-12-15 1988-12-14 Procede d'application d'un melange de matiere plastique et de fibres de renforcement dans un moule

Country Status (2)

Country Link
SE (1) SE459798B (fr)
WO (1) WO1989005717A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426317A2 (fr) * 1989-10-30 1991-05-08 Ford Motor Company Limited Une préforme pour procédé RTM et un procédé pour fabriquer cette préforme
DE4442858A1 (de) * 1994-12-02 1996-06-05 Inst Verbundwerkstoffe Gmbh Verfahren zur Herstellung eines Sandwich-Formkörpers aus faserverstärktem thermoplastischem Material
US6383320B1 (en) 1999-12-03 2002-05-07 Lear Corporation Method of forming a headliner
EP2338668A1 (fr) * 2009-12-22 2011-06-29 Lm Glasfiber A/S Procédé de production d'une structure de coque composite
US20120067515A1 (en) * 2009-05-25 2012-03-22 Lm Glasfiber A/S Method of manufacturing a composite structure with prefabricated reinforcement element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1175022A (fr) * 1957-05-13 1959-03-19 Renault Perfectionnements à la fabrication des préformes en fibres
DE1202977B (de) * 1957-10-17 1965-10-14 Goodyear Aerospace Corp Spritzvorrichtung zum Verarbeiten eines Fasermaterials mit einem Bindemittel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1175022A (fr) * 1957-05-13 1959-03-19 Renault Perfectionnements à la fabrication des préformes en fibres
DE1202977B (de) * 1957-10-17 1965-10-14 Goodyear Aerospace Corp Spritzvorrichtung zum Verarbeiten eines Fasermaterials mit einem Bindemittel

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0426317A3 (en) * 1989-10-30 1992-11-25 Ford Motor Company Limited A resin transfer moulding preform and a method of making the preform
EP0426317A2 (fr) * 1989-10-30 1991-05-08 Ford Motor Company Limited Une préforme pour procédé RTM et un procédé pour fabriquer cette préforme
DE4442858A1 (de) * 1994-12-02 1996-06-05 Inst Verbundwerkstoffe Gmbh Verfahren zur Herstellung eines Sandwich-Formkörpers aus faserverstärktem thermoplastischem Material
US6383320B1 (en) 1999-12-03 2002-05-07 Lear Corporation Method of forming a headliner
US6736915B2 (en) 1999-12-03 2004-05-18 Lear Corporation Method of forming a headliner
CN102458805B (zh) * 2009-05-25 2015-07-29 Lm玻璃纤维制品有限公司 制造带有预制增强构件的复合结构的方法
US9133817B2 (en) * 2009-05-25 2015-09-15 Lm Glasfiber A/S Method of manufacturing a composite structure with prefabricated reinforcement element
US20120067515A1 (en) * 2009-05-25 2012-03-22 Lm Glasfiber A/S Method of manufacturing a composite structure with prefabricated reinforcement element
CN102458805A (zh) * 2009-05-25 2012-05-16 Lm玻璃纤维制品有限公司 制造带有预制增强构件的复合结构的方法
WO2011076857A1 (fr) 2009-12-22 2011-06-30 Lm Glasfiber A/S Procédé de fabrication d'une structure en coque composite
CN102834247A (zh) * 2009-12-22 2012-12-19 Lm玻璃纤维制品有限公司 制造复合壳体结构的方法
US20120257984A1 (en) * 2009-12-22 2012-10-11 Lm Glasfiber A/S Method of producing a composite shell structure
CN102834247B (zh) * 2009-12-22 2015-09-02 Lm玻璃纤维制品有限公司 制造复合壳体结构的方法
EP2338668A1 (fr) * 2009-12-22 2011-06-29 Lm Glasfiber A/S Procédé de production d'une structure de coque composite
US9234500B2 (en) * 2009-12-22 2016-01-12 Fm Glasfiber A/S Method of producing a composite shell structure

Also Published As

Publication number Publication date
SE459798B (sv) 1989-08-07
SE8705003L (sv) 1989-06-16
SE8705003D0 (sv) 1987-12-15

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