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    A STEEL CORD FOR RUBBER REINFORCEMENT
    1.
    发明申请
    A STEEL CORD FOR RUBBER REINFORCEMENT 审中-公开

    公开(公告)号：WO2020173759A1

    公开(公告)日：2020-09-03

    申请号：PCT/EP2020/054218

    申请日：2020-02-18

    Applicant: NV BEKAERT SA

    Inventor： ZHANG, Aijun ,  XI, Haidong ,  ZHOU, Wei

    IPC: D07B1/06

    Abstract: A steel cord with a construction of m+n is provided. The steel cord comprises a first group of core filaments having a number of m and a second group of sheath filaments having a number of n, the second group and the first group are twisted around each other with the same twist pitch and same twist direction, wherein the core filaments are not twisted with each other, the core filaments are parallel or have a twist pitch being more than 300 mm, and the sheath filaments have a twist pitch being less than or equal to 30mm, the core filaments have an average tensile strength Tc in MPa when being un-ravelled from said steel cord, the sheath filaments have an average tensile strength Ts in MPa when being un-ravelled from said steel cord, Tc and Ts satisfy: 5

    A M+N STEEL CORD FOR REINFORCING RUBBER PRODUCT
    2.
    发明申请
    A M+N STEEL CORD FOR REINFORCING RUBBER PRODUCT 审中-公开
    用于加固橡胶制品的M + N钢丝绳

    公开(公告)号：WO2017157973A1

    公开(公告)日：2017-09-21

    申请号：PCT/EP2017/056050

    申请日：2017-03-15

    Applicant: NV BEKAERT SA

    Inventor： WANG, He ,  ZHOU, Wei ,  ZHU, Xiangyu ,  ZHU, Hongzhen

    IPC: D07B1/06 ,  D07B3/10

    CPC classification number: D07B1/064 ,  B60C9/0007 ,  D07B1/062 ,  D07B1/0626 ,  D07B1/0653 ,  D07B3/106 ,  D07B2201/2011 ,  D07B2201/2016 ,  D07B2201/2018 ,  D07B2201/2019 ,  D07B2201/2023 ,  D07B2201/2029 ,  D07B2201/2052 ,  D07B2201/206 ,  D07B2205/3057 ,  D07B2205/3089 ,  D07B2207/208 ,  D07B2207/4045 ,  D07B2401/208 ,  D07B2801/10 ,  D07B2801/18 ,  D07B2801/60 ,  D07B2801/90 ,  D07B2801/12

    Abstract: A steel cord for rubber reinforcement comprises a first group of core filaments (105) having a number of m and a second group of sheath filaments (110) having a number of n, m is three or four, the core filaments (105) are forming a helix, the core filaments (105) are not twisted together and being substantially parallel or the core filaments (105) have a twist pitch being more than 300mm; the second group and the first group are twisted with each other, and the sheath filaments (110) are forming a flattened helix in the same direction of the helix of the core filaments (105), and the sheath filaments (110) have a cord twist pitch, at any cross-section of the steel cord, at least one interstice between two adjacent core filaments (105) is present. The steel cord has improved abrasion resistance and can contribute to the reduction of the weight of the tire.

    Abstract translation: 用于橡胶增强件的钢丝帘线包括具有许多m的第一组芯丝（105）和具有n根的第二组鞘丝（110），m是三或四 ，所述芯丝（105）形成螺旋线，所述芯丝（105）不捻合在一起并且基本平行，或者所述芯丝（105）的扭绞节距大于300mm; 第二组和第一组彼此捻合，并且鞘丝（110）在与芯丝（105）的螺旋方向相同的方向上形成扁平螺旋，并且鞘丝（110）具有帘线 在钢丝帘线的任何横截面处存在两个相邻芯丝（105）之间的至少一个间隙。 钢丝绳具有改善的耐磨性，并且可以有助于减少轮胎的重量。

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