| 摘要 |
<p>A pultrusion apparatus (10) and process for the impregnation of multiple fiber tows (12) with a thermoplastic resin (15) wherein an impregnation vessel (14) having an entrance (20) and an exit end (23) is provided with a fiber control insert (21) formed of spaced cylindrical rings (42-45) suspended therein, with a resin flow control device (22) being suspended horizontally within the rings. A combined resin meter and profile die (30) is attached to the impregnation vessel exit end (23) with a cooling die (32) connected thereto. A pulling mechanism (34) pulls the fiber tows (12) through melted resin (15) contained within the impregnation vessel (14) and into a stepped decreasing diameter passageway (73-76) in the resin meter and profile die (30) to remove excess resin and shape the impregnated fiber into a useful structure before it is cooled below the melting point of the resin (15) by the cooling die (32). In one embodiment, a cut-off station (36) is provided adjacent the pulling mechanism (34) to cut the cooled impregnated fiber structure (33) into desired lengths. In another embodiment, the pulling mechanism (34) includes a winding spool with separate compartments therein to accommodate up to five separate impregnated fiber structures received from a five passageway resin metering and profile die.</p> |
