SYSTEM FOR PREPARING GLASS FIBER PELLETS

摘要

A system for making densified glass fiber pellets from chopped segments of multi-filament glass strand is described. The densifiedpellets may be advantageously produced by hydrating chopped glass strands (24) and then pelletizing them by tumbling in a rotary drum (41), and densifying the resulting pellets by tumbling in a rotating zig-zag or undulating tube (42) for a period of time sufficient to increase their density but insufficient to degrade the fibers to a point where composite articles formed from such pellets have lower tensile or impact strengths than comparable composite articles formed from unpelletized strand segments.