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    Thermally stable helically plied cable
    61.
    发明授权
    Thermally stable helically plied cable 失效
    热稳定的螺旋电缆

    公开(公告)号：US4173113A

    公开(公告)日：1979-11-06

    申请号：US556090

    申请日：1975-03-07

    Applicant: Donald L. Snellman ,  Willard G. Hudson

    Inventor： Donald L. Snellman ,  Willard G. Hudson

    IPC: D02G3/18 ,  D02G3/40 ,  D07B1/02 ,  D07B1/16

    CPC classification number: D07B1/02 ,  D07B2201/1044 ,  D07B2201/2028 ,  D07B2201/2044 ,  D07B2201/2046 ,  D07B2205/2064 ,  D07B2205/3003 ,  D07B2401/2005 ,  D07B2401/2035 ,  D07B2401/205 ,  Y10T428/2938

    Abstract: The cable includes continuous glass filaments which are helically plied in rovings at a constant helical angle from cable center to outer surface and bonded together in elastomeric material. When heated, thermal elongation of the filaments is opposed by simultaneous radially directed thermal volumetric expansion of the elastomeric material. Thus, with respect to overall cable length, thermal elongation of the cable is opposed by a simultaneous increase in cable cross sectional area such that thermal elongation effects are controllable, dependent upon the thermal expansion properties of the filament and elastomeric materials used, by controlling the helical angle at which the filaments are plied to obtain either expanding, contracting or constant length cables, as desired. Thermal contraction effects produced by cooling the cable also are controllable by controlling the helical angle. In some high tensile load cable applications, the helical angle additionally may be related to tensile load, depending upon the modulus of elasticity of the filaments used. The invention is particularly adapted to helically plied glass fiber cables which are thermally stable over a wide range of temperatures.

    Abstract translation: 电缆包括连续的玻璃丝，其以从电缆中心到外表面的恒定的螺旋角螺旋地拼接在粗纱中，并以弹性体材料结合在一起。 当加热时，细丝的热伸长通过弹性体材料的同时径向指向的热体积膨胀而相反。 因此，对于整体电缆长度，电缆的热伸长通过电缆横截面积的同时增加而相反，使得热延伸效应可以根据所使用的长丝和弹性体材料的热膨胀特性来控制，通过控制 根据需要，将细丝合并以获得扩展，收缩或恒定长度的电缆的螺旋角。 通过冷却电缆产生的热收缩效应也可以通过控制螺旋角来控制。 在一些高拉伸负载电缆应用中，螺旋角度可能与拉伸载荷有关，这取决于所用长丝的弹性模量。 本发明特别适用于在宽的温度范围内热稳定的螺旋状玻璃纤维电缆。

    POLYETHYLENE ROPE WITH LOW STRENGTH LOSS DURING USE
    64.
    发明申请
    POLYETHYLENE ROPE WITH LOW STRENGTH LOSS DURING USE 审中-公开
    使用低强度损失的聚乙烯钢丝绳

    公开(公告)号：WO2013064627A1

    公开(公告)日：2013-05-10

    申请号：PCT/EP2012/071714

    申请日：2012-11-02

    Applicant: TEIJIN ARAMID B.V.

    Inventor： GRABANDT, Otto ,  ELKINK, Frits ,  VAN BERKEL, Bertil

    IPC: D07B1/02

    CPC classification number: D07B1/167 ,  C08F110/02 ,  D07B1/025 ,  D07B1/162 ,  D07B2201/1044 ,  D07B2201/1096 ,  D07B2201/2003 ,  D07B2201/2012 ,  D07B2201/2089 ,  D07B2205/2014 ,  D07B2205/3017 ,  D07B2205/507 ,  D07B2501/2015 ,  D07B2501/2061 ,  Y10T428/2925 ,  Y10T428/2933 ,  D07B2801/10 ,  D07B2801/22 ,  D07B2801/18

    Abstract: A rope comprising polyethylene elongate elements oriented in the length direction of the rope wherein for at least part of the elongate elements the distance of the element to a central longitudinal rope axis varies over the length of the rope, the polyethylene elongate elements comprising tapes of ultra-high molecular weight polyethylene, the tapes having a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt.%. The distance of at least part of the elements to the central longitudinal rope axis varies over the length of the rope between a longitudinal line which is at most 30% from the outside of the rope and a longitudinal line which is at most 30% from the central longitudinal axis of the rope. A rope with these properties, shows a high strength-strength ratio, defined as the ratio between the strength under use conditions and the fresh strength of the rope. A strength-strength ratio of at least 50%, preferably at least 70%, in particular at least 80% can be achieved.

    Abstract translation: 包括在绳索的长度方向上定向的聚乙烯细长元件的绳索，其中对于至少部分细长元件，元件到中心纵向绳索轴线的距离在绳索的长度上变化，聚乙烯细长元件包括超声波带 - 高分子量聚乙烯，所述带的宽度与厚度之比至少为10，聚合物溶剂含量低于0.05重量％。 至少部分元件至中央纵向绳索轴线之间的距离在绳索长度之间变化，该长度线距离绳索外侧至多30％的纵向线和距离绳索最多30％的纵线 绳的中心纵轴。 具有这些性能的绳索显示出高强度比，其被定义为在使用条件下的强度与绳索的新鲜强度之间的比率。 可以实现至少50％，优选至少70％，特别是至少80％的强度 - 强度比。

    A STEEL CORD FOR RUBBER REINFORCEMENT
    70.
    发明公开
    A STEEL CORD FOR RUBBER REINFORCEMENT 审中-公开

    公开(公告)号：US20230392319A1

    公开(公告)日：2023-12-07

    申请号：US18268719

    申请日：2021-11-30

    Applicant: NV Bekaert SA

    Inventor： Aijun ZHANG ,  Haijun MA ,  Yaodong LI

    IPC: D07B1/06

    CPC classification number: D07B1/0606 ,  D07B2201/1044 ,  D07B2201/2022 ,  D07B2201/2067 ,  D07B2205/3025 ,  D07B2201/1028

    Abstract: The invention provides a steel cord with a construction of n×1, n is the number of the steel filaments of the steel cord, the steel cord has an elongation at 2.5N-50N of less than 1.2% and a twist pitch of greater than 16 mm, each of the steel filaments has a form of helical wave with a wave length L expressed in mm and a wave height H expressed in mm when being unravelled from said steel cord, L is greater than 16 mm, each of the steel filaments has a space volume Vs satisfying that, Vs=L×H2×π/4, and Vs>20 mm3. The invention steel cord is beneficial for the stress distribution.

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