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    • 59. 发明授权
    • Method and device for the transverse drawing of a material web
    • 材料网的横向拉伸的方法和装置
    • US09180622B2
    • 2015-11-10
    • US11912360
    • 2006-05-09
    • Leo WintrichRobert Hansohn
    • Leo WintrichRobert Hansohn
    • B29C55/08B29C35/02
    • B29C55/08B29C35/02
    • The invention relates to a method for the transverse drawing of an unoriented or longitudinally-oriented film web made from thermoplastic plastic. According to said method, an undrawn or longitudinally-drawn film (8) is introduced into a transverse drawing frame in which heater fields (1) are heated to a transverse drawing temperature TQ, in the attached drawing fields (2) a clip chain is drawn in the transverse direction by divergent (V-shaped) guides and a temperature TF is applied to fixing fields where TQ>TF. In the drawing fields and/or the heating fields (1) the boundary zones (5) of the film (8) are heated or thermally insulated such that the boundary zones (5) of the film (8) have a higher temperature than the middle of the film web (6) on transverse drawing and/or fixing.
    • 本发明涉及一种用于横向拉伸由热塑性塑料制成的未取向或纵向取向膜片的方法。 根据所述方法,将未拉伸或纵向拉伸的薄膜(8)引入横向拉伸框架中,其中加热器区域(1)被加热到横向拉伸温度TQ,在附图中,夹子链 通过发散(V形)导向器沿横向拉伸,并且将温度TF施加到固定场,其中TQ> TF。 在绘图场和/或加热区(1)中,膜(8)的边界区(5)被加热或热绝缘,使得膜(8)的边界区(5)具有比 横向拉伸和/或固定的薄膜网(6)的中间。