Method of locally influencing resin permeability of a dry preform

Method of locally influencing resin permeability of a dry preform

METHOD OF LOCALLY INFLUENCING RESIN PERMEABILITY THROUGH A DRY PREFORM A method of locally influencing resin permeation through a dry preform (10) having one or more reinforcement ply layers (202a, 202b, 202c), comprising applying a selectively permeable veil 205 to at least one of the reinforcement...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Meure, Sam, Szarski, Martin A
Format: Patent
Sprache:eng
Schlagworte:
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
MAKING GRANULES OR PREFORMS
PERFORMING OPERATIONS
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED
RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:METHOD OF LOCALLY INFLUENCING RESIN PERMEABILITY THROUGH A DRY PREFORM A method of locally influencing resin permeation through a dry preform (10) having one or more reinforcement ply layers (202a, 202b, 202c), comprising applying a selectively permeable veil 205 to at least one of the reinforcement ply layers (202a, 202b, 202c) of the dry preform (10); the selectively permeable veil having a veil pattern of a predetermined spatial density and being adapted to dissolve or melt into resin to at least locally impart toughness to the preform upon resin infusion and curing of the dry preform; infusing resin into the dry preform (10); and directing the resin through the selectively permeable veil (205) such that the resin impregnates through the dry preform (10). 250-z 245 250 205a /-202a -m > 205b 205c 270 255 15- 1202c \205d Figure 2 364 310 363 345 364 361 360 Figure 7