Method and Device for Manufacturing a Three-Layer Cord of the Type Rubberized in Situ
    11.
    发明申请
    Method and Device for Manufacturing a Three-Layer Cord of the Type Rubberized in Situ 有权
    用于制造原位橡胶类型的三层电缆的方法和装置

    公开(公告)号:US20120000174A1

    公开(公告)日:2012-01-05

    申请号:US13129671

    申请日:2009-11-10

    Abstract: Method of manufacturing a metal cord with three concentric layers (C1, C2, C3), rubberized in situ, of M+N+P construction, comprising a first, internal, layer (C1) consisting of M wires of diameter d1, M varying from 1 to 4, around which there are wound together in a helix, at a pitch p2, in a second, intermediate, layer (C2), N wires of diameter d2, N varying from 3 to 12, around which there are wound together as a helix at a pitch p3, in a third, outer, layer (C3), P wires of diameter d3, P varying from 8 to 20, the said method comprising the following steps which are performed in line: an assembling step by twisting the N wires around the first layer (C1) in order to form, at a point named the “assembling point”, an intermediate cord named a “core strand” of M+N construction; downstream of the assembling point, a sheathing step in which the M+N core strand is sheathed with a rubber composition named “filling rubber” in the uncrosslinked state; an assembling step in which the P wires of the first layer (C3) are twisted around the core strand thus sheathed; a final twist-balancing step. Also disclosed is a device for implementing such a method.

    Abstract translation: 制造具有M + N + P结构原位橡胶化的三个同心层(C1,C2,C3)的金属帘线的方法,包括由直径为d1,M的M线组成的第一内部层(C1),M 1至4,其中以螺旋线,间距p2,第二,中间层(C2)缠绕在一起,直径为d2的N个线,N为3至12个,绕其缠绕在一起 作为在间距p3,第三,外层(C3)中的螺旋线,直径为d3的P线,P从8变化到20,所述方法包括以下步骤:串联进行组装步骤 在第一层(C1)周围的N条线,以便在称为“组装点”的点处形成称为M + N结构的“芯线”的中间线; 在组装点的下游,在未交联状态下用M + N芯股线用称为“填充橡胶”的橡胶组合物包覆的护套步骤; 组装步骤,其中第一层(C3)的P线绕着包芯的芯线绞合; 最后的扭曲平衡步骤。 还公开了一种用于实现这种方法的装置。

    STEEL CORD FOR TIRE AND PNEUMATIC TIRE USING THE STEEL CORD
    16.
    发明申请
    STEEL CORD FOR TIRE AND PNEUMATIC TIRE USING THE STEEL CORD 审中-公开
    钢丝绳用于轮胎和气动轮胎使用钢丝绳

    公开(公告)号:US20100300592A1

    公开(公告)日:2010-12-02

    申请号:US12744851

    申请日:2008-09-23

    Abstract: It is an object of the present invention to reduce fretting between strands in a steel cord, to suppress reduction in cord strength caused by running, to enhance rubber penetrability, and to improve tire durability. The steel cord includes a cord main portion 19 of a triple layer-stranding structure including: a core 16 formed from one core strand f1, an inner sheath 17 including N (2 to 5) inner sheath strands f2 stranded with a stranding pitch Pi around the core; and outer sheath 18 formed from M (6 to 11) outer sheath strands f3 stranded with a stranding pitch Po around the inner sheath. Diameters of the strands f1, f2 and f3 are equal to each other, and stranding directions of the sheaths 17 and 18 are the same. A difference (|Ai−Ao|) between a stranding angle Ai of the inner sheath strand f2 and a stranding angle Ao of the outer sheath strand f3 is greater than 1° and smaller than 3°.

    Abstract translation: 本发明的目的是减少钢帘线中的股线之间的摩擦,以抑制由行驶引起的帘线强度的降低,提高橡胶的穿透性,并提高轮胎的耐久性。 钢丝帘线包括三层绞合结构的帘线主体部分19,其包括:由一个芯股f1形成的芯16,包含N(2至5个)内护套股的内护套17,绞线间距为 核心; 以及由围绕内护套绞合的绞合间距Po的M(6至11)外鞘股线f3形成的外护套18。 绞线f1,f2,f3的直径彼此相等,护套17,18的绞合方向相同。 内护套股f2的绞合角度A 1与外鞘股线f3的绞合角度Ao之间的差(| Ai-Ao |)大于1°且小于3°。

    SINGLE LAY STEEL CORD FOR ELASTOMER REINFORCEMENT
    19.
    发明申请
    SINGLE LAY STEEL CORD FOR ELASTOMER REINFORCEMENT 审中-公开
    用于弹性体加固的单层钢丝绳

    公开(公告)号:US20100068495A1

    公开(公告)日:2010-03-18

    申请号:US12516637

    申请日:2007-11-30

    Abstract: A steel cord (200) is described that is simple and cost effective to produce while solving some particular problems for the reinforcement of elastomer belts such as timing belts or the like. The cord (200) is a single lay cord that comprises a core filament (202), around which a first layer and a second layer of filaments (204, 210, 212) is twisted, all filaments being twisted with the same lay length and direction. By appropriate choice of the lay length, the core filament diameter and the filament diameters of the first layer—the latter being larger or equal to the former—an aggregate gap can form in which intermittently a filament (210′) of the second layer gets entrained. This aggregate gap must be between 40 and 70% of the core filament diameter in order to obtain the desired effect of having a core filament (202) that is deformed with the same lay length and direction as the other filaments (204,210,212). A deformed core filament (202) suppresses the effect of core filament migration. In addition the exceptional rough aspect of the cord (200) leads to good mechanical anchorage in the elastomer. Also the load exerted on the cord (200) is better distributed over all filaments. The use of the cord is not limited to timing belts: an advantageous use of the cord in tyres, hoses, hoisting belts, drive belts and reinforcing strips is anticipated.

    Abstract translation: 描述了钢丝绳(200),其在解决用于加强诸如同步带等的弹性体带的一些特定问题时制造简单且成本有效。 帘线(200)是包括芯丝(120)的单层帘布线,第一层和第二层细丝(204,210,212)围绕该芯丝绞合,所有长丝以相同的铺设长度扭转, 方向。 通过适当选择敷设长度,芯丝直径和第一层的长丝直径(后者大于或等于前者)可以形成间隙,第二层的细丝(210')间断地获得 夹带着 为了获得具有与其它长丝(204,210,212)相同的长度和方向变形的芯丝(202)的期望效果,该聚集间隙必须在芯丝直径的40至70%之间。 变形的芯丝(202)抑制芯丝迁移的影响。 此外,绳索(200)的特殊粗糙方面导致弹性体中良好的机械锚固。 此外,施加在绳索(200)上的负载也更好地分布在所有长丝上。 绳的使用不限于同步带:预期在绳轮,轮胎,软管,起重带,传动带和加强带中有利地使用绳索。

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