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1. WO2000038905 - MOULDING PROCESS AND APPARATUS

Publication Number WO/2000/038905
Publication Date 06.07.2000
International Application No. PCT/IE1999/000143
International Filing Date 23.12.1999
Chapter 2 Demand Filed 23.06.2000
IPC
B29B 15/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
15Pretreatment of the material to be shaped, not covered by groups B29B7/-B29B13/117
08of reinforcements or fillers
10Coating or impregnating
B29C 70/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
30Shaping 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
34and shaping or impregnating by compression
CPC
B29C 70/342
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04comprising reinforcements only, e.g. self-reinforcing plastics
28Shaping operations therefor
30Shaping 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
34and shaping or impregnating by compression ; , i.e. combined with compressing after the lay-up operation
342using isostatic pressure
Applicants
  • KINGSPAN RESEARCH AND DEVELOPMENTS LIMITED [IE/IE]; Dublin Road Kingscourt County Cavan, IE (AllExceptUS)
  • MURTAGH, Adrian [IE/IE]; IE (UsOnly)
  • FEERICK, Patrick, Joseph [IE/IE]; IE (UsOnly)
Inventors
  • MURTAGH, Adrian; IE
  • FEERICK, Patrick, Joseph; IE
Agents
  • O'BRIEN, John, A. ; John A O'Brien & Associates Duncairn House, 3rd floor 14 Carysfort Avenue Blackrock County Dublin, IE
Priority Data
98110123.12.1998IE
99049515.06.1999IE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MOULDING PROCESS AND APPARATUS
(FR) PROCEDE DE MOULAGE ET APPAREIL CORRESPONDANT
Abstract
(EN)
A mould (1) has internal heating wires (2) and channels (3) for circulation of a coolant. A composite material in the form of a cloth (4) of a co-mingled glass fibre/polypropylene continuous fibre composite is draped over the mould (1). A flexible nylon bagging film or silicone rubber sheet (6) is placed over the cloth of composite material (4) and sealed around the edges. A vacuum V is then applied between the film (6) and the mould. Air is evacuated from the area occupied by the composite material (4) and a uniform vacuum pressure P of typically 15psi is applied over the surface of the composite sheet (4). After heating and cooling the vacuum is removed and a fully moulded part is removed from the mould.
(FR)
Selon cette invention, un moule (1) possède des fils de chauffage internes (2) et des canaux (3) destinés à la circulation d'un fluide de refroidissement. Un matériau composite se présente comme un morceau de tissu (4) fait à partir d'un composite à base de fibres enchevêtrées en continu comprenant des fibres de verre / de polypropylène, ledit tissu recouvrant le moule (1). On place un film d'emballage en Nylon souple ou une feuille de caoutchouc de silicone (6) par-dessus le tissu en matériau composite (4) et on le scelle autour des bords. Un vide V est ensuite appliqué entre le film (6) et le moule. L'air est évacué depuis la zone occupée par le matériau composite (4), et l'on applique un vide uniforme P de l'ordre de 15 psi sur toute la surface de la feuille composite (4). Après chauffage et refroidissement, on fait cesser l'action du vide et l'on retire du moule la pièce entièrement moulée.
Also published as
Latest bibliographic data on file with the International Bureau