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    • 7. 发明公开
    • Steel cord for reinforcing a rubber product
    • Stahlseil zurVerstärkungelastomerer Erzeugnisse
    • EP0711868A1
    • 1996-05-15
    • EP95117868.0
    • 1995-11-13
    • BRIDGESTONE METALPHA CORPORATION
    • Ishizaka, Hiroki, c/o Bridgestone Metalpha Corp.
    • D07B1/06
    • D07B1/062D07B1/0626D07B1/0633D07B2201/2021D07B2201/2028Y10S57/902
    • A steel cord which is suitable for reinforcing a rubber product and has excellent fatigue resistance. The steel cord has a layer-twisted structure formed by steel filaments respectively having a diameter of 0.15 mm to 0.25 mm. A core of the steel cord is formed by 1 to 4 steel filaments. A least 6 steel filaments are wound around the steel filaments of the core to form at least one layer. When the steel cord is bent from a straight state to a state in which a radius of curvature thereof is d/(17 x 10⁻³) wherein d is a diameter in millimeters of each steel filament in an outermost layer of the steel cord, a maximum amount of movement of each steel filament in the outermost layer in a cross-section of the steel cord is less than or equal to (-0.5454d + 0.1454) x 10³ um. The steel cord preferably has a two-layer-twisted structure or a three-layer-twisted structure, and has an arrangement in which the diameters of the steel filaments gradually decrease from the core to the outermost layer.
    • 适用于加强橡胶制品,耐疲劳性优良的钢丝绳。 钢帘线具有由直径为0.15mm至0.25mm的钢丝形成的层状扭曲结构。 钢帘线的芯由1至4根钢丝形成。 在芯的钢丝上缠绕至少6根钢丝,形成至少一层。 当钢帘线从直线状态弯曲到其曲率半径为d /(17×10 <3>)的状态时,其中d是最外层中的每根钢丝的直径(以毫米计) 钢帘线在钢帘线的截面中最外层的每根钢丝的最大移动量小于或等于(-0.5454d + 0.1454)×10 -3。 钢帘线优选具有双层扭曲结构或三层扭曲结构,并且具有其中钢丝的直径从芯到最外层逐渐减小的布置。