| 摘要 |
<p>The present invention relates to the needling of continuous glass fibre mats. …<??>The invention consists in subjecting the mat to the action, preferably simultaneous, of needles of different diameters. Perforations of different sizes, preferably uniformly distributed, are thus produced in the mat. …<??>This mat is intended to be employed as a reinforcement in composite materials based on thermoplastic resins, especially in laminates. …<IMAGE>… </p> |
