| 摘要 |
<p>The invention is concerned with a method and apparatus for impregnating fibre bundles by means of molten or liquid resin (32) in the course of manufacturing fibre-reinforced material (which material comprises one or more fibre bundles in which each fibre is surrounded by matrix resin) by impregnating a continuous web (10, 10a) of one or more fibre bundles with a molten or liquid resin (32) and solidifying the resin (32) by cooling or chemical reaction. Before impregnation, the molten or liquid resin material (32) is subjected to shear forces by forcing it to flow through a channel (31) communicating with an impregnation point (34, 37), the channel containing at least one part having decreasing cross-section and/or said channel having a cross-section sufficiently narrow to cause shear forces in the molten or liquid resin material (32) to decrease its viscosity.</p> |
