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Invention Publication
CN102472000A 原地橡胶处理的并具有3+M+N结构的三层钢帘线 失效 - 放弃专利权 转让

原地橡胶处理的并具有3+M+N结构的三层钢帘线
Abstract:
本发明涉及具有三层(C1、C2、C3)和3+M+N结构的钢帘线(C-1)，其进行原地橡胶处理，并且包括：由以捻距p1螺旋组装的直径为d1的两根丝线(10)形成的第一层或中心层(C1)；由以捻距p2螺旋卷绕在所述中心层(C1)周围的直径为d2的M根丝线(11)形成的第二层(C2)；以及由以捻距p3螺旋卷绕在所述第二层周围的直径为d3的N根丝线(12)形成的第三层(C3)。所述帘线的特征在于其具有如下特性(d1、d2、d3、p1、p2和p3以mm表示)：-0.08≤d1≤0.50；-0.08≤d2≤0.50；-0.08≤d3≤0.50；-3＜p1＜50；-6＜p2＜50；-9＜p3＜50；对于任何3cm长的帘线，称为“填充橡胶”(13)的橡胶混配物存在于由所述第一层(C1)的三根丝线限定的中心通道(14)中的每一个毛细管中，并且存在于由所述第一层(C1)的3根丝线和所述第二层(C2)的M根丝线限定以及由所述第二层(C2)的M根丝线和所述第三层(C3)的N根丝线限定的每一个毛细管(15)中；所述帘线中填充橡胶的水平在10和50mg/克帘线之间。本发明还涉及这种帘线的制备方法以及一种多线股帘线，所述多线股帘线中的多根线股的至少一根线股为根据本发明的原地橡胶处理的三层钢帘线(C-1)。
Abstract(English):

The invention relates to a steel cord (C-1) with three layers (C1, C2, C3) and a 3+M+N structure, that is rubberized in situ and comprises: a first layer or central layer (C1) formed by two wires (10) of diameter d1 assembled in a helix at a pitch p1; a second layer (C2) formed by M wires (11) of diameter d2, which are wound around the central layer (C1) in a helix at a pitch p2; and a third layer (C3) formed by N wires (12) of diameter d3, which are wound around the second layer in a helix at a pitch p3. The cord is characterised in that it has the following characteristics: (d1, d2, d3, p1, p2 and p3 being expressed in mm): - 0.08 = d1 = 0.5; - 0.08 = d2 = 0.5; - 0.08 = d3 = 0.5; - 3 1 2 3 < 50; for any 3 cm-length of cord, a rubber composition known as "filling rubber" (13) is present in each of the capillaries in the central channel (14) defined by the three wires of the first layer (C1) and in each of the capillaries (15) defined by the 3 wires of the first layer (C1) and the M wires of the second layer (C2) and by the M wires of the second layer (C2) and the N wires of the third layer (C3); and the level of filling rubber in the cord is between 10 and 50 mg per gram of cord.; The invention also relates to the method for producing one such cord and to a multi-strand cord, in which at least one of the strands is a three-layer steel cord (C-1) rubberized in situ in accordance with the invention.

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