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    Steel wire for reinforcing rubber article and rubber article including the same
    74.
    发明专利
    Steel wire for reinforcing rubber article and rubber article including the same 审中-公开
    用于增强橡胶制品的钢丝和包括它们的橡胶制品

    公开(公告)号：JP2014169507A

    公开(公告)日：2014-09-18

    申请号：JP2013040333

    申请日：2013-03-01

    Applicant: Bridgestone Corp ,  株式会社ブリヂストン

    Inventor： OBANA NAOHIKO

    IPC: D07B1/06 ,  B60C9/00

    CPC classification number: C08J5/00 ,  B60C9/0007 ,  C08J2321/00 ,  D07B1/0606 ,  D07B1/066 ,  D07B2201/2003 ,  D07B2201/2005 ,  D07B2201/2009 ,  D07B2201/2014 ,  D07B2205/3057 ,  D07B2401/206 ,  D07B2801/10

    Abstract: PROBLEM TO BE SOLVED: To provide a steel wire of a flat cross-sectional shape with excellent flexural fatigue strength than conventional one for reinforcing a rubber article and to provide a rubber article including the same.SOLUTION: The steel wire for reinforcing a rubber article 10 has a width direction cross section with a major axis and a minor axis, the major axis and the minor axis being substantially perpendicular to each other. When the major axis is denoted by W, the minor axis by T, a line passing through the center in the width direction of the major axis and parallel to the minor axis by L1, a line passing through the center in the width direction of the minor axis and parallel to the major axis by L2, an intersection point of L1 and L2 by a central point C, an area within half the distance from the central point C to a surface by a center area Rc, and an outer area of the center area Rc by a surface layer area Rs, the Vickers hardness Hvc of the center area Rc is greater than the Vickers hardness Hvs of the surface layer area Rs. Also, when the Vickers hardness on L1 in the surface layer area is denoted by Hv1 and the Vickers hardness on L2 in the surface layer area Rs by Hv2, the relation represented by Hvc-Hv1≤150Hvc-Hv2≤150 is satisfied.

    Abstract translation: 要解决的问题：提供一种扁平横截面形状的钢丝，其弯曲疲劳强度优于常规用于加强橡胶制品的弯曲疲劳强度，并提供包括该橡胶制品的橡胶制品。解决方案：用于加强橡胶制品的钢丝 10具有长轴和短轴的宽度方向横截面，长轴和短轴基本上彼此垂直。 当长轴由W表示时，短轴为T，通过长轴的宽度方向的中心并平行于短轴的线为L1，穿过中心沿着宽度方向的中心线 短轴并且平行于长轴L2，通过中心点C的L1和L2的交点，距中心点C到中心区域Rc的距离的一半范围内的区域，以及外部区域 中心区域Rc由表层区域Rs表示，中心区域Rc的维氏硬度Hvc大于表面层面积Rs的维氏硬度Hvs。 此外，当表面层区域中的L1上的维氏硬度由Hv1表示，表面层区域Rs中的L2的维氏硬度由Hv2表示时，满足由Hvc-Hv1≤150Hvc-Hv2≤150表示的关系。

    STEEL WIRE
    77.
    发明公开
    STEEL WIRE 审中-公开
    STAHLDRAHT

    公开(公告)号：EP3103891A1

    公开(公告)日：2016-12-14

    申请号：EP15746150.0

    申请日：2015-02-06

    Applicant: Nippon Steel & Sumitomo Metal Corporation

    Inventor： HIRAKAMI Daisuke ,  OKONOGI Makoto

    IPC: C22C38/00 ,  B60C9/00 ,  C21D8/06 ,  C21D9/52 ,  C22C38/32

    CPC classification number: C21D9/52 ,  B60C9/00 ,  B60C9/0007 ,  C21D8/06 ,  C21D2211/009 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/20 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/32 ,  D02G3/48 ,  D07B1/066 ,  D07B2201/2014 ,  D07B2205/3035 ,  D07B2205/3053 ,  D07B2205/3057 ,  D07B2801/10

    Abstract: A steel wire according to an aspect of the present invention includes a predetermined chemical composition, in which a wire diameter R of the steel wire is 1.0 mm to 3.5 mm, a soft portion is formed along an outer circumference of the steel wire, the Vickers hardness of the soft portion is lower than that of a position of the steel wire at a depth of 1/4 of the wire diameter R by Hv 30 or higher, the thickness of the soft portion is 5 µm to 0.1 xR mm, the metallographic structure of a center portion of the steel wire contains 95% to 100% of pearlite by area%, the average lamellar spacing of pearlite in a portion from a surface of the steel wire to a depth of 5 µm is less than that of pearlite at the center of the steel wire, the difference between the average lamellar spacing of pearlite in the portion from the surface of the steel wire to the depth of 5 µm and the average lamellar spacing of pearlite at the center of the steel wire is 3 nm to 60 nm, and the tensile strength is 1100 MPa or higher.

    Abstract translation: 根据本发明的一个方面的钢丝包括预定的化学成分，其中钢丝的线径R为1.0mm至3.5mm，沿着钢丝的外周形成软部分，维氏 在软线部分的硬度比线径R的1/4的深度处的钢丝的位置低Hv 30或更高，软部分的厚度为5μm至0.1xRmm，金相 钢丝网的中心部分的结构以面积％计含有95％〜100％的珠光体，从钢丝表面到珠光体的深度为5μm的珠光体的平均层间距离小于珠光体的平均层间距离 钢丝的中心，钢丝表面部分中的珠光体的平均层间距离与5μm线的深度之间的差异以及钢丝中心的珠光体的平均层间距离之差为3nm〜 60nm，拉伸强度为1100 MPa以上。

    RUBBER ARTICLE REINFORCING STEEL WIRE AND RUBBER ARTICLE USING SAME
    79.
    发明公开
    RUBBER ARTICLE REINFORCING STEEL WIRE AND RUBBER ARTICLE USING SAME 有权
    GUMMIARTIKELVERSTÄRKUNGSSTAHLDRAHTUND橡胶制品Damit

    公开(公告)号：EP2947199A4

    公开(公告)日：2016-10-05

    申请号：EP14757620

    申请日：2014-02-28

    Applicant: BRIDGESTONE CORP

    Inventor： OBANA NAOHIKO

    IPC: D07B1/06 ,  B60C9/00

    CPC classification number: C08J5/00 ,  B60C9/0007 ,  C08J2321/00 ,  D07B1/0606 ,  D07B1/066 ,  D07B2201/2003 ,  D07B2201/2005 ,  D07B2201/2009 ,  D07B2201/2014 ,  D07B2205/3057 ,  D07B2401/206 ,  D07B2801/10

    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.

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