Abstract:
A rope includes elongate bodies having a length axis parallel to a length of the rope or showing helix angles smaller than 2°. The elongate bodies include tapes of ultra-high molecular weight polyethylene. The tapes have a width to thickness ratio of at least 10 and a polymer solvent content below 0.05 wt. %.
Abstract:
A motorcycle tire comprises: a toroidal carcass comprising two carcass plies of cords arranged at an angle of from 20 to 80 degrees with respect to the tire circumferential direction; and a band comprising at least one ply of at least one helically wound cord disposed radially outside the carcass. The band cord is made of steel filaments of 0.08 to 0.20 mm diameter twisted together into a L×M×N structure. The band cord has a low tensile elastic modulus range and a high tensile elastic modulus range, wherein an inflection point between the low tensile elastic modulus range and the high tensile elastic modulus range lies between 2% elongation and 7% elongation of the cord, and a tensile force required to cause 2% elongation of the band cord is not more than 60 Newton.
Abstract:
A combined cable comprising a core cable of high-strength synthetic fibers, which take the form of a twisted bundle of monofilaments or a plurality of twisted bundles of monofilaments, and comprising an outer layer of steel wire strands, is characterized in that the bundle or bundles of monofilaments is or are stretched, with a reduction in diameter, and held in this state by a sheathing, in particular a braided sheathing. The extension under strain of the core cable under load is thereby reduced, so that the load distribution between the cross section of steel and the cross section of synthetic material of the cable improves.
Abstract:
In one aspect, the present disclosure relates to a high-strength prestressing strand having a seven-wire structure in which one core wire and six outer wires are stranded. An external diameter of the strand is from 15.0 mm to 16.1 mm, a total cross-sectional area of the strand is 135 mm2 or more, and a load at 0.2% permanent elongation is 266 kN or more. A relaxation value measured after a 1000-hour relaxation test is 2.5% or lower and a diameter of the core wire is 5.35±0.3 mm and a diameter of the outer wires is 5.15±0.25 mm. The core wire and the outer wires each have a composition of at least 0.90% carbon. The prestressing strand is manufactured by stranding the core wire and outer wires, giving a stretching treatment, and giving a bluing treatment at a temperature of 380° C. or more and 430° C. or less after or at the same time with the stretching treatment.
Abstract:
A cable (11) is provided comprising a steel cord (12) and a polymer material (15). The steel cord (12) has a diameter less than 2.5 mm, and is coated with the polymer material (15). The cable (11) has a permanent elongation of less than 0.05% at a permanent force of 50 N, after being subjected to a force of 450 N. Further, a window elevator system (300) comprising such a cable (11) is provided.
Abstract:
An elevator load bearing assembly (40) includes a plurality of synthetic or polymer cords (42) within a urethane jacket (44). The cords are prestretched and the jacket prevents the stretched cords from relaxing. The inventive arrangement provides a load bearing assembly (40) that has little or no elastic or construction stretch.
Abstract:
The present invention concerns hybrid layered cables some of which can be used to reinforce at least one crown protection ply of tyres for heavy vehicles or earthmovers, and others to reinforce the beads of tyres for light motorised vehicles such as motorcycles. The invention also concerns a composite fabric usable as a crown protection ply of such heavy vehicles or earthmovers, and a bead wire designed to reinforce the said beads and the aforesaid tyres. A hybrid layered cable (C) according to the invention comprises a non-metallic internal layer (Ci) and an unsaturated external layer (Ce) comprising strands (T) each of which is at least in part metallic and which are wound in helix around the said internal layer, the said cable having a relative elongation at break At, measured in tension in accordance with the standard ISO 6892 of 1984, which is higher than 7%. According to another aspect of the invention, the said internal layer is composed of at least one material having a relative elongation at break Ar at 20° C. in excess of 6%.
Abstract:
A cable (11) is provided comprising a steel cord (12) and a polymer material (15). The steel cord (12) has a diameter less than 2.5 mm, and is coated with the polymer material (15). The cable (11) has a permanent elongation of less than 0.05% at a permanent force of 50 N, after being subjected to a force of 450 N. Further, a window elevator system (300) comprising such a cable (11) is provided.
Abstract:
A high-elongation composite cord used for reinforcing a rubber composite such as a wheel tire and a conveyor belt. It is made by twisting a plurality of strands each made by twisting a plurality of brass-plated steel filaments and monofilaments of organic fiber. Before twisting the cord, monofilaments of organic fiber are put in the gaps formed between the adjacent strands so as to prevent fluidized rubber from penetrating into a center core formed in the cord after the cord has been covered with rubber. The monofilaments should have a diameter small enough not to protrude from a circle circumscribing the cord and large enough to close the gaps between the adjacent strands.
Abstract:
A braided structure that includes a core and a sheath is provided. The core includes a yarn formed at least in part from an aromatic polymer (e.g., an aromatic polyester/liquid crystalline polymer or an aramid polymer), and the sheath, which includes a plurality of ultra high molecular weight polyolefin yarns, is braided around the core. The sheath has an overall diameter ranging from about 60 micrometers to about 650 micrometers. Despite its small diameter, the braided structure can be creep resistant and abrasion resistant while at the same time exhibiting low elongation, a high load at break, and high stiffness. The braided structure can be used in medical applications such as sutures, load bearing orthopedic applications, artificial tendons/ligaments, fixation devices, actuation cables, components for tissue repair, etc.