Abstract:
The invention relates to a flexible traction organ (38) that can be wound and unwound, in particular for passenger and/or goods lifts, said organ comprising at least one stranded cable (16) consisting of a tensile resistant material. The core strand (124) of each stranded cable (16) is surrounded by a flexible thermoplastic plastic layer (126). A production line (10) for embedding several stranded cables (16) in a flexible thermoplastic plastic (39) comprises a respective reel (14) for unwinding the stranded cable (16), a device (24) for accurately aligning the stranded cable (16), a heating element (26, 28, 30) for pre-heating the stranded cable (16), at least one extruder (32) for co-extruding the stranded cable (16) in a flexible plastic sheathing, a cooling vat (42), a reel storage unit (52), a cutting unit (66) and a reserve reel (18). The extruder (32), a wire guide (74) and at least one die (76) can be adjusted individually, conjointly and in relation to one another on a plane (P) that runs at an angle to the cable plane (E). The unwound stranded cables (16) are degreased and/or pre-treated to improve the adhesion of the plastic sheathing, are pre-heated to a temperature of approximately +/- 20 DEG C in relation to the melting temperature of the flexible, thermoplastic plastic that surrounds the core strand (124) and are sheathed with liquefied plastic (86) in the extruder (32).
Abstract:
A wire rope including at least one metal wire and at least one fluoropolymer fiber. Preferably, the fluoropolymer fiber is present in an amount less than about 25 weight %, and in alternative embodiments less than 20 weight %, 15 weight %, 10 weight %, and 5 weight %. The fluoropolymer fiber is preferably PTFE, and most preferably expanded polytetrafluoroethylene (ePTFE). The wire rope is useful in tensioned and bending applications.
Abstract:
Ein flexibles, umlenkbares Zugorgan (16) wird für statische und dynamische Lasten, insbesondere für Personenlifte, Warenlifte, Krane und Fahrzeuge eingesetzt. Das Zugorgan (16) umfasst wenigstens eine Litze (18) aus zugfesten Einzelelementen (10), wie Fasern, Drähten und/oder Bändern. Wenigstens ein Teil der Einzelelemente (10) der Litze (18) ist durch eine Beschichtung (12) und/oder Füllmaterial in Form von Fasern (28) und/oder schüttfähigem Pulver beziehungsweise Granalien (30) in Abstand gehalten. Nach bevorzugten Varianten ist wenigstens ein Einzelelement (10) einer Litze (18) durch einen elektrisch gut leitenden Draht (46) oder einen optischen Leiter (44) ersetzt.
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 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).
Abstract:
Rope of a hoisting appliance and method for manufacturing rope of a hoisting appliance (1), which rope of a hoisting appliance comprises a core wire (2) or similar and a plurality of outer wire layers, each of which comprises a plurality of wires (3). The rope (1) comprises at least one such wire layer, essentially all the wires (3) of which are at essentially the same distance from the core wire (2) and contain composite material and of which at least a part are essentially wedge-shaped in the shape of their cross-section. The hoisting appliance rope (1) can comprise at least one such wire layer that comprises wire bundles essentially at the same distance from the longitudinal axis of the rope and which wire bundles comprise wires (3) comprised of composite, and at least a part of which wire bundles are essentially wedge-shaped in the shape of their cross-section. In the method a plurality of wires (3) are directed into at least one outer layer (L) as a part of the rope (1) such that at least a part of the wires (3) forming the rope (1) are composite and in the method at least a part of the composite wires (3) intended to be a part of the rope (1) are coated with polymer and the wires (3) are directed into the proximity of each other as a part of the rope (1).