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    • 43. 发明授权
    • Process for the production of a fibrous mat
    • 生产纤维毡的方法
    • US4997607A
    • 1991-03-05
    • US346705
    • 1989-05-03
    • Herbert NopperReinhard Wirth
    • Herbert NopperReinhard Wirth
    • B27N3/08
    • B27N3/08Y10T428/249946Y10T428/249947
    • Low density fibrous mats formed from fibres and thermosetting and thermoplastic binders, transformed by moulding at elevated temperatures are used for the production of mouldings. Such fibrous mats are produced in that a mixture of fibres and binders is spread out to form a fleece and the latter is compressed or compacted to a mat at high temperature. For the planned influencing of the characteristics of the moulding, while simultaneously reducing the binder requirement and the density, it is proposed that the fibrous mat or blanks thereof is passed through a pair of rollers with polished surfaces and by means of at least one roller binder is applied from the aqueous phase to the side of the fibrous mat facing the same under pressure action and that the fibrous mat is passed through the roller pair at a speed lower than the circumferential speed thereof and following onto the roller pair is passed through a drying zone.
    • 由纤维形成的低密度纤维垫,通过在高温下成型而转化的热固性和热塑性粘合剂用于制造模制品。 这样的纤维毡的制造方法是将纤维和粘合剂的混合物展开以形成绒毛,并将后者在高温下压制或压实成垫。 为了有计划地影响成型的特性,同时减少粘结剂的要求和密度,提出将纤维垫或坯料通过一对具有抛光表面的辊并借助于至少一个辊粘合剂 在压力作用下从水相施加到面向其的纤维垫的侧面,并且纤维垫以低于其圆周速度的速度穿过辊对,并且沿着辊对通过干燥 区。