Abstract:
Hybrid rope (20) comprising a core element (22) containing high modulus fibers surrounded by at least one outer layer (24) containing wirelike metallic members (26). The core element (22) is coated (23) with a thermoplastic polyurethane or a copolyester elastomer, preferably the copolyester elastomer containing soft blocks in the range of 10 to 70 wt %. The coated material (23) on the inner core element (22) is inhibited to be pressed out in-between the wirelike members (26) of the hybrid rope (20) and the hybrid rope (20) has decreased elongation and diameter reduction after being in use.
Abstract:
Multistrand metal cord (C-1) having two layers (Ci, Ce) of J+K construction, which can especially be used for reinforcing tires for industrial vehicles, consisting of a core comprising J strands forming an inner layer (Ci), J varying from 1 to 4, around which core are wound, in a helix, with a helix pitch PK of between 20 and 70 mm, K outer strands forming an outer layer (Ce) around said inner layer (Ci), each outer strand: comprising a cord (10) having two layers (C1, C2) of L+M construction, rubberized in situ, comprising an inner layer (C1) comprised of L wires (11) of diameter d1, L varying from 1 to 4, and an outer layer (C2) of M wires (12), M being equal to or greater than 5, of diameter d2, which are wound together in a helix with a pitch p2 around the inner layer (C1); and having the following characteristics (d1, d2 and p2 being expressed in mm): 0.10
Abstract:
Multistrand metal cord of K×(L+M) construction, which can especially be used for reinforcing tire belts for industrial vehicles, consisting of K elementary strands assembled in a helix, with a helix pitch PK, each elementary strand: consisting of a cord (10) having two layers (Ci, Ce) of L+M construction, rubberized in situ, comprising an inner layer (Ci) consisting of L wires (11) of diameter d1, L varying from 1 to 4, and an outer layer (Ce) of M wires (12), M being equal to or greater than 5, of diameter d2, which are assembled in a helix with a pitch p2 around the inner layer (Ci); and having the following characteristics (d1, d2 and p2 being expressed in mm): 0.10
Abstract:
An embodiment of a wellbore cable comprises a cable core, at least a first armor wire layer comprising a plurality of strength members and surrounding the cable core, and at least a second armor wire layer comprising a plurality of strength members surrounding the first armor wire layer, the second armor wire layer covering a predetermined percentage of the circumference of the first armor wire layer to prevent torque imbalance in the cable.
Abstract:
A bead cord is described including an annular core and a side wire. The side wire is helically wound around the annular core. Further, the annular core is made of a strand wire. The strand wire includes a plurality of twisted core wires. The plurality of core wires may have substantially the same diameter.
Abstract:
A steel cord adapted for the reinforcement of elastomers includes: a core steel filament with a diameter dc and coated with a polymer, six intermediate steel filaments with a diameter di smaller than or equal to dc, the intermediate steel filaments being twisted around the core steel filament, ten to eleven outer steel filaments with a diameter do, smaller than or equal to di wherein these outer steel filaments are twisted around the intermediate steel filaments, and the outer steel filaments are preformed in order to allow rubber penetration inside the cord. The core steel filament, the intermediate steel filaments, and the outer steel filaments all have a tensile strength of at least 2600 MPa. The cord has an outer diameter D according to the following formula: D≦dc+2×di+2×do+0.1 mm, wherein all diameters are expressed in millimeters (mm).
Abstract translation:适用于增强弹性体的钢丝绳包括:具有直径d c c的芯钢丝,并涂覆有聚合物,六个中等长度的细长丝,直径小于或等于 中间钢丝缠绕在芯钢丝上,十到十一个直径小于或等于的钢丝, 其中这些外部钢丝围绕中间钢丝绞合,并且外部钢丝被预成型以允许橡胶在帘线内渗透。 芯钢丝,中间钢丝和外钢丝均具有至少2600MPa的拉伸强度。 帘线具有根据以下公式的外径D:D <= D i> + 2×2×2×2×↓+ 0.1mm,其中 所有直径以毫米(mm)表示。
Abstract:
A hybrid cord which is characterized by (A) a core steel filament; (B) a first layer of one or more nonmetallic filaments which are wrapped about the steel filament in the core; and (C) a second layer of from 4 to 12 steel filaments which are wrapped about the first layer.
Abstract:
A steel cord intended for use to reinforce rubber products is produced by drawing, into a steel filament of 0.10 to 0.40 mm in diameter and more than 3,000 N/mm.sup.2 in strength, a wire rod having a carbon content of more than 0.70% by weight, and twisting a plurality of such steel filaments together. Also a pneumatic tire is provided which employs in at least a portion of a reinforcing member thereof the steel cord improved in corrosion resistance and having an R.sub.1 /R.sub.0 ratio .times.100 which is less than 100, where R.sub.0 is the radius of spiral curvature of the spiraled steel filament resulting from untwisting said steel cord and R.sub.1 is the radius of spiral curvature of said steel filament of which the surface layer inside the spiral is removed by dissolving.
Abstract:
A steel cord intended for use to reinforce rubber products is produced by drawing, into a steel filament of 0.10 to 0.40 mm in diameter and more than 3,000 N/mm.sup.2 in strength, a wire rod having a carbon content of more than 0.70% by weight, and twisting a plurality of such steel filaments together. Also a pneumatic tire is provided which employs in at least a portion of a reinforcing member thereof the steel cord improved in corrosion resistance and having an R.sub.1 /R.sub.0 ration.times.100 which is less than 100, where R.sub.0 is the radius of spiral curvature of the spiraled steel filament resulting from untwisting said steel cord and R.sub.1 is the radius of spiral curvature of said steel filament of which the surface layer inside the spiral is removed by dissolving.
Abstract:
PCT No. PCT/GB78/00019 Sec. 371 Date June 5, 1979 Sec. 102(e) date June 1, 1979 PCT Filed Oct. 3, 1978 PCT Pub. No. W079/00182 PCT Pub. Date Apr. 19, 1979The invention relates to wire ropes.There is disclosed a wire rope comprising a plurality of strands (4-12) twisted together with each strand (4-12) being individually covered by a respective sheath (16) of rubber or rubber substitute. Each strand (4-12) comprises a plurality of wires (14) twisted together with the direction of twist of at least the outer wires (14) in each strand (4-12) being opposite to the direction of twist of at least the outer wires (14) in the strands (4-12) adjacent to it, the rope having an outer covering sheath (18) of rubber or rubber substitute.In this way, the wires (14) of adjacent strands (4-12) do not cross each other, and stress on them is reduced.