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    • 77. 发明申请
    • OPEN STEEL CORD STRUCTURE
    • 开钢结构
    • WO1995016816A1
    • 1995-06-22
    • PCT/EP1994004096
    • 1994-12-09
    • N.V. BEKAERT S.A.
    • N.V. BEKAERT S.A.VAN GIEL, FransDE VOS, Xavier
    • D07B01/06
    • D07B1/0646B60C9/0007D07B1/0613D07B1/0626D07B1/0633D07B1/0653D07B7/025D07B2201/2002D07B2201/2003D07B2201/2008D07B2201/2021D07B2201/2022D07B2201/2023D07B2401/201D07B2401/208Y10S57/902
    • A steel cord (114) for the reinforcement of rubber products comprises strength elements (100, 132) and has length, a longitudinal central axis (112) and a cord pitch. Each of the elements (100) has a projection on a plane YZ perpendicular to the longitudinal central axis (112). At least one of these projections takes the form of a curve with a radius of curvature which alternates between a maximum and minimum. The curve further has a center of curvature. The radius of curvature and the center of curvature lie inside the curve so that a convex curve is obtained. The cord (114) is further characterized by one or both of the following features: (i) the distance between two minimum radii of curvature of said curve measured along the longitudinal central axis (112) is different from half the cord pitch; or (ii) if all of said elements (100) provide a convex curve, at least one of said convex curves substantially differs from another convex curve. The steel cord (114) allows full rubber penetration despite low values of cord diameter and part load elongation (PLE).
    • 用于加强橡胶制品的钢丝帘线(114)包括强度元件(100,132),并且具有长度,纵向中心轴线(112)和绳索间距。 每个元件(100)在垂直于纵向中心轴线(112)的平面YZ上具有突起。 这些突起中的至少一个呈曲率半径的形式,其曲率半径在最大和最小之间。 该曲线还具有曲率中心。 曲率半径和曲率中心位于曲线内,从而获得凸曲线。 帘线(114)的特征还在于以下特征中的一个或两个:(i)沿着纵向中心轴线(112)测量的所述曲线的两个最小曲率半径之间的距离不同于帘线间距的一半; 或(ii)如果所有所述元件(100)提供凸曲线,则所述凸曲线中的至少一个基本上与另一凸曲线不同。 尽管电线直径和部分负载伸长率(PLE)很低,钢丝帘线(114)仍能使橡胶完全穿透。