METHODS AND COMPOSITIONS FOR COMPRESSION MOLDING

A method for forming fiber-reinforced composite parts via compression molding, particularly useful for forming parts that include off-axis, out-of-plane, or small, intricate features. In accordance with the method, non-flowing continuous fiber bundles and flowing continuous fiber bundles are placed...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DAVIDSON, Erick, ESCOWITZ, Ethan
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE 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:	A method for forming fiber-reinforced composite parts via compression molding, particularly useful for forming parts that include off-axis, out-of-plane, or small, intricate features. In accordance with the method, non-flowing continuous fiber bundles and flowing continuous fiber bundles are placed in a mold, wherein the flowing continuous fiber bundles are disposed proximal to a minor feature. The non-flowing bundle has a length about equal to the length of a major feature of the mold. The flowing bundle has a length that is somewhat longer than the length of the minor feature. Under heat and pressure, resin softens and fibers from the flowing continuous fiber bundles flow into the minor feature.