FIBRE COATING METHOD AND APPARATUS

摘要

A fibre unit coating apparatus includes a chamber (190) into which an uncured resin coated fibre unit (12) is passed. Microspheres mixed with air are fed into the chamber (190) via ducts (196) and apertures (194a). As a result rapid and even application of the microspheres can be achieved, and the system allows controllable application of the microspheres by varying the rate of flow of the air/microsphere mixture. Positive pressure chambers (72, 74) are provided to prevent the microspheres from blocking the inlet and outlet points where the fibre unit (12) enters and leaves the chamber (190).