RUBBER ARTICLE REINFORCING STEEL WIRE AND RUBBER ARTICLE USING SAME
    49.
    发明申请
    RUBBER ARTICLE REINFORCING STEEL WIRE AND RUBBER ARTICLE USING SAME 有权
    橡胶制品加固钢丝和橡胶制品使用相同

    公开(公告)号:US20150376351A1

    公开(公告)日:2015-12-31

    申请号:US14768247

    申请日:2014-02-28

    Inventor: Naohiko OBANA

    Abstract: Provided are a rubber article reinforcing steel wire that is superior in bending fatigue properties to the related art and has a flat cross-sectional shape, and a rubber article using the wire. In a rubber article reinforcing steel wire 10, a major diameter and a minor diameter are substantially perpendicular to each other. Assuming that the major diameter is W, the minor diameter is T, a straight line that passes through a center of the major diameter in a width direction and is parallel to a minor diameter direction is L1, a straight line that passes through a center of the minor diameter in a width direction and is parallel to a major diameter direction is L2, an intersection point of the L1 and the L2 is a center point C, a region within a half of a distance from the center point C to a surface is a central region Rc, and a region outside the central region Rc is a surface layer region Rs, a Vickers hardness Hvc of the central region Rc is more than a Vickers hardness Hvs of the surface layer region Rs; and assuming that a Vickers hardness on the L1 in the surface layer region Rs is Hv1, and a Vickers hardness on the L2 in the surface layer region Rs is Hv2, relationships represented by Hvc−Hv1≦150, Hvc−Hv2≦150, Hv1/Hvc×100≧85.11, and Hv2/Hvc×100≧79.84 are satisfied.

    Abstract translation: 本发明提供一种与现有技术相比弯曲疲劳特性优异并且具有平坦的横截面形状的橡胶制品加强钢丝以及使用该丝的橡胶制品。 在橡胶制品加强钢丝10中,大直径和小直径基本上彼此垂直。 假设长径为W,小直径为T,在宽度方向上通过长径方向的中心并且与小径方向平行的直线为L1,通过中心的直线 宽度方向的小直径与长径方向平行的方向为L2,L1和L2的交点为中心点C,从中心点C到表面的距离的半数以内的区域为 中心区域Rc和中心区域Rc之外的区域是表面层区域Rs,中心区域Rc的维氏硬度Hvc大于表面层区域Rs的维氏硬度Hvs; 假设表层区域Rs中的L1的维氏硬度为Hv1,表层区域Rs中的L2的维氏硬度为Hv2,则由Hvc-Hv1< 150; Hvc-Hv2< 150; Hv1 / Hvc×100≥85.11,Hv2 / Hvc×100≥79.84。

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