Abstract:
This invention relates to a steel cord adapted for the reinforcement of rubber product. The steel cord (30) comprising a core strand (32) and three or more outer strands (34) twisted around said core strand (32). The outer strands (34) are multi- layer strands comprising multiple steel filaments arranged in an outer strand core (36) and at least one outer strand layer (38, 40), the steel filaments in the outer strands have a round or substantially round cross-section. At least one outer strand (34) comprises flattened portions (52) and non-flattened portions (54) along its length. The flattened portions create spacing S between adjacent outer strands (34) and gaps G between adjacent filaments in the outer strand (34), which improves rubber penetration and elongation of the steel cord (30), and finally improves the impact resistance of the steel cord (30). Besides, the flattened portions (52) limit the flare of the steel cord.
Abstract:
L'invention concerne un câble de traction (1) comprenant une âme monobloc (2) comprenant un noyau central (4) muni sur sa périphérie d'une série d'ailettes (5) régulièrement espacées formant entre elles des gorges de réception (6) de section au moins partiellement circulaire et des torons (3) disposés autour de l'âme (2) par insertion dans chacune des gorges de réception (6), de telle sorte que l'association de l'âme et des torons (3) présente une enveloppe extérieure de forme sensiblement cylindrique, les torons (3) étant incrustés dans les gorges de réception (6), sans pour autant venir faire fluer les ailettes (5) qui les séparent. L'invention concerne également une âme monobloc (2, 7) pour câble de traction ainsi que l'utilisation de ce câble (1) en tant que câble de traction pure ou en tant que câble porteur-tracteur.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung von Litzen (3), welche wenigstens zwei Drähte (2) aus einem metallischen Material, insbesondere einer Kupferlegierung, aufweisen, wobei das Verfahren die folgenden Schritte aufweist, die auch mehrfach und/oder in einer anderen Reihenfolge als angegeben ausgeführt werden können: - gegebenenfalls Erwärmen der Drähte (2) mittels einer Wärmebehandlungseinrichtung (30) zur Steigerung der möglichen Materialdehnung bzw. Verformbarkeit, - Verlitzen der Drähte (2) mittels einer Verlitzeinrichtung (40) an wenigstens einem Verlitzpunkt (45.1, 45.2), - Beeinflussen des Querschnitts (16) der Litze (3) mittels wenigstens einer, insbesondere als Ziehstein ausgebildeten, Querschnittsbeeinflussungseinrichtung (10).
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:
A belt for suspending and/or driving an elevator car includes a plurality of wires arranged into a plurality of strands. The plurality of strands includes one or more center elements with a plurality of outer wires arranged around the one or more center elements and includes one or more anchorage features to limit relative movement of the plurality of wires. A jacket substantially retains the plurality of strands.
Abstract:
Disclosed are a steel wire rope having a six-strand fiber filled core and a process and special equipment for manufacturing same. The steel wire rope comprises a steel core (1), and six outer layer strands (2) twisted on the steel core, with each of the outer layer strands (2) being compacted individually, and an oil-containing high molecular polymer cord (3) embedded between the steel core and two adjacent outer layer stands. By means of a compacting process applied to the outer layer strands, the outer surfaces thereof become tidy and smooth, so that the contact areas between the steel wire rope and a pulley, a winding drum, and a supporting roller are increased, the stress concentration is reduced, and the probability of the steel wire rope being scrapped as a result of wires breaking prematurely is reduced; and embedding the oil-containing high molecular polymer cord between the steel core and two adjacent outer layer strands effectively solves the problems of insufficient oil storage in the steel wire rope and rigid contact between the strands and the core, such that the service life of the steel wire rope is increased by more than 80% as compared with the steel wire ropes originally used.
Abstract:
An elevator rope for suspending the car of an elevator device, comprising an inner layer rope having a plurality of inner layer strands formed of a plurality of steel wires twisted each other, a resin inner layer covering body covering the outer periphery of the inner layer rope, and an outer layer disposed on the outer peripheral part of the inner layer covering body, the outer layer further comprising a plurality of outer layer strands formed of a plurality of steel wires twisted each other, wherein the outer layer covering body formed of a high friction resin material is applied onto the outer periphery of the outer layer.
Abstract:
The core comprises a fluted member (1) of polymeric or elastomeric material with symmetrically spaced helical grooves (2) each having the shape of an elliptical arc in cross-section normal to the core axis. A central region (3) may contain a reinforcing member or conductors or optical fibres.
Abstract:
A wire rope (10, 20), comprising: a core (12, 22), a plurality of outer strands (18, 28) and a plurality of separator strands (17, 27) laid on said core (12, 22), and a first plastic jacket (19) around said plurality of outer strands (18, 19) and said plurality of separator strands (17, 27), wherein said plurality of separator strands (17, 27) extend from said core (12, 22) and in-between each pair of said plurality of outer strands (18, 28) so as to produce and maintain gaps between said pair of said plurality of outer strands (18, 28). Plastic impregnation of the wire rope (10, 20) can be ensured due to the separator strands/17, 27).