Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1995-10-16
1997-08-19
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
156180, 264136, 26417123, 2641772, 425112, 425114, B29C 4702
Patent
active
056585136
ABSTRACT:
A cross-head die for the manufacture of long fiber-reinforced resin structures enhances fiber loosening and resin melt impregnation of fiber bundle near its inlet. A passageway along which the fiber bundle travels is defined between the die inlet and outlet and is in communication with a resin port to allow a resin melt to be introduced thereinto so as to impregnate the traveling fiber bundle. The passageway meanders relative to the common plane so as to establish a plurality of alternating successive peak and valley portions each having a substantially constant pitch dimension as measured at adjacent crossing points of the passageway with the common plane. A first peak or valley portion adjacent to the inlet has a greater height dimension as measured from the common plane as compared to a last peak or valley portion adjacent the outlet. Intermediate peak and valley portions between the first and last peak or valley portion have the same or lesser height as compared to an adjacent upstream one of the intermediate peak or valley portions. In such a manner, the tension on the fiber bundle will be greater near the inlet as compared to the outlet so as to enhance fiber bundle loosening and resin melt impregnation thereat.
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Abstract/Zusammenfassung/Abrege 95307351.7 Dec. 1995.
Amaike Takeshi
Shirai Yoshimitsu
Polyplastics Co. Ltd.
Thurlow Jeffery R.
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