Abstract:
A bead cord which is lightweight and inexpensive, high in formability, and includes an annular core that is high in corrosion resistance. The bead cord which is lightweight and inexpensive and high in formability includes an annular core 1 and a wrap wire 2 helically wrapped around the annular core 1, the annular core 1 being made of a medium carbon steel or an alloy steel having a lower C content and containing specific elements in suitable amounts, and having a diameter dC that satisfies the following relation 1.04≦dC/dS≦1.30 with respect to the diameter dS of the wrap wire 2, the wrap wire 2 having a coil diameter DS which is 0.5 to 1.3 times the coil diameter DC of the annular core 1. In order to improve the corrosion resistance of the annular core 1, the annular core 1 may be formed with a plating layer 4 of an Al—Zn alloy or a thick plating layer 4 of Zn, or the annular core 1 may be made of stainless steel.
Abstract translation:一种重量轻且成本低,成形性高的胎圈帘线,包括耐腐蚀性高的环形芯。 重量轻且成本高的胎圈帘线包括环形芯1和螺旋缠绕在环形芯1周围的缠绕线2,环形芯1由中碳钢或具有较低C含量的合金钢制成 并且含有适当量的特定元素,并且具有满足以下关系的直径d C C 1 / D 2 / 相对于包裹线2的直径d 3 S <1.30,缠绕线2的线圈直径D 为线圈直径D C sub>。为了提高环形铁心1的耐腐蚀性,环形铁芯1可以形成有具有Al-Zn合金或镀层4的镀层4 Zn或环形芯1可以由不锈钢制成。
Abstract:
A multi-layer cable having an unsaturated outer layer, comprising a core (C0) of diameter d0 surrounded by an intermediate layer (C1) of six or seven wires (M=6 or 7) of diameter d1 wound together in a helix at a pitch p1, surrounded by an outer layer (C2) of N wires of diameter d2 wound together in a helix at a pitch p2, N being less by 1 to 3 than the maximum number Nmax of wires which can be wound in one layer about the layer C1, this cable has the following characteristics (d0, d1, d2, p1 and p2 in mm): (i) 0.14
Abstract:
A hybrid steel cord and method of making such cord which includes, in contact with one or more carbon steel wire(s), at least one stainless steel wire whose microstructure contains less than 20% of martensite (% by volume). Articles made of plastic and/or rubber, in particular tire envelopes or the carcass reinforcement plies of such envelopes embodying such cords.
Abstract:
A steel cord (10) for reinforcing elastomeric articles. The steel cord (10) having a plurality of strands (14). Each strand (14) having a core (20) and a sheath (22). The sheath (22) being a plurality of steel filaments that are helically wrapped about the core (20). A first strand (16) extending longitudinally through the center of the steel cord (10). The remaining strands (18) being helically wrapped about the first strand (16). The core (20) of the first strand (16) being a plurality of filaments twisted together. In a preferred embodiment, the core (20) of the first strand 16 being three filaments twisted together.
Abstract:
A steel cord for the reinforcement of rubber articles has a two-layer construction in which a core consists of two steel filaments and a sheath arranged around the core consists of nine steel filaments. Preferably the two steel filaments constituting the core are either non-twisted filaments or are twisted at a pitch of not less than 30 mm on average, a ratio (ds/dc) of the diameter ds of each steel filament constituting the sheath to the diameter dc of each steel filament constituting the core is within a range of 35-80%, and a ratio (a/b) of the minor diameter a to the major diameter b of the cord cross-section in an arbitrary position in the longitudinal direction of the cord is within a range of 63-100%
Abstract:
A steel cord of 1+3 structure is formed by twisting three sheath steel filaments around a single core steel filament. In this case, the three sheath steel filaments are arranged so as to satisfy conditions at a section of the sheath perpendicular to a longitudinal direction of the cord that a maximum angle of a triangle formed by connecting central points of the these filaments to each other is not less than 90.degree. but less than 180.degree. and an apex defining the maximum angle is always located on the same filament and a distance between the central point of this filament and the central point of the filament adjacent thereto is 1.0-1.3 times of the diameter of the filament.
Abstract:
A tire cord and a tire, wherein the tire cord comprises three inner steel monofilaments (FC) having a smaller diameter (dc) and seven outer steel monofilaments (FB) having a larger diameter (db), both the diameters (dc) and (db) being in the range of 0.15 to 0.28 mm, the inner and outer steel monofilaments being twisted in the same direction but at different pitches, and an average gap of at least 0.03 mm is provided between the adjacent outer steel monofilaments. The tire is provided with the cords as reinforcements, e.g. carcass cords, belt cords and the like.
Abstract:
A cord has a core including a plurality of wires, and an outer layer including a plurality of wires and surrounding the core. The wires of the core and of the outer layer are twisted together. All the wires of the core have a diameter larger than the wires of the outer layer, thereby guaranteeing a gap between adjacent wires of the outer layer.
Abstract:
A steel cord usable for the reinforcement of rubber articles comprises a core of a single steel filament, an inner sheath composed of six steel filaments and an outer sheath composed of 7 to 12 steel filaments, wherein the steel filaments constituting the core, inner sheath and outer sheath have a diameter of 0.20.about.0.40 mm and satisfy the particular relations.
Abstract:
A steel cord for the reinforcement of rubber articles is disclosed, which comprises a central base structure composed of 1 to 4 steel filaments, and at least one coaxial layer composed of plural steel filaments arranged around the central base structure so as to adjoin them to each other, these steel filaments being twisted in the same direction at the same pitch. In the steel cord of this type, the steel filaments constituting the central base structure have the same diameter (dc), while at least one steel filament of the coaxial layer has a diameter (dso) smaller than the diameter (dc) of the steel filament in the central base structure.