Vorrichtung zur Herstellung von Formteilen aus plastifizierbarem Material und faserförmigen Einlagen

摘要

Moulding equipment for plastic materials, and partic. thermoplastics or thermosetting systems with fibre fillings, particularly glass, carbon or aramid, has a hollow barrel with inlet and a screw mixer coaxial in the barrel. A mixer part of the screw motor and a coaxial surrounding mixer ring have oppositely offset circumferential and axial series of mixing chambers, which are open on their facing sides, and sepd by an annular gap whose width is at least 10 times the dia. of the fibres concerned. ADVANTAGE - The equipment produces good wetting of long fibres, homogeneous distribution of the fibres, but min. damaging effect on them with a small range of fibre length