Abstract:
A method for producing a strand or cable, in which fibers and/or wires are twisted at a twisting point to form the strand or cable. The fibers and/or wires are coated with a liquefied matrix material before and/or at the twisting point and are embedded in the matrix material during twisting. The fibers and/or wires are immersed in the matrix material before and/or at the twisting point and the formed strand or the formed cable is cooled after the twisting in order for the matrix material to solidify, preferably by air or in a cooling liquid, for example water.
Abstract:
In an elevator rope, a plurality of steel outer layer strands are twisted together on an outer circumference of an inner layer rope. The inner layer rope has: a fiber core; a plurality of steel inner layer strands that are twisted together directly onto an outer circumference of the fiber core; and a resin inner layer rope coating body that is coated onto the outer circumference. A diameter of the inner layer strands is smaller than a diameter of the outer layer strands. The inner layer strands are greater in number than the outer layer strands.
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:
A wire rope which has an independent wire rope core (IWRC) and outer strands laid around the core. This wire rope has an improved fatigue life when the outer wires of the core and of the outer strands are galvanized. The wire rope may be either fully or partially impregnated with plastic, if desired.
Abstract:
To reduce elongation of a stranded wire rope or cable (1), particularly when running over sheaves, or pulleys, and decrease vibration as well as operating noise while increasing operating speed, insert elements (4) are placed between adjacent rope elements (2). The insert elements, in cross-section, have an intermediate portion part (7) with oppositely positioned concave recesses (9), a head portion (6) which can be widened to the circumferential diameter of the rope or cable (1) and a widened base portion (8). The base portions (8) are not interconnected. The insert ribbons or tapes are preferably formed along their length with slits (11) extending from the head portion (6) to about the middle of the ribbon or tape to allow for bending of the rope, and the inserts about circular pulleys. The insert elements (64, 74, 94), preferably, are reinforced with a fabric material (16, 96), which is integrated into the material of the inserts, and located, for example adjacent the concave recesses, or in a central plane of symmetry, or with longitudinal reinforcements (84), such as reinforcement fibers, glass fibers, monofilaments or the like. Preferably, the fabric is a woven fabric of fibrous or monofilamentary material, yarns or threads.
Abstract:
A method for making a wire rope comprising a core; a plastic jacket placed over the core; a plurality of outer strands laid on the circumference of the jacket core; and a plurality of substantially round wormings. The method comprises the steps of: i) extruding the plastic jacket over the core; ii) simultaneously laying on the circumference of the jacketed core a plurality of loose and substantially round wormings, and a plurality of outer stands, whereby the wormings are compressed by the outer strands to substantially fill the voids comprised between two adjacent outer strands and the core.
Abstract:
Reinforced thermoplastic impregnated lubricated wire ropes are provided in the present invention. A method of reinforcing and filling the thermoplastic material with fibers, mineral fillers and powders is also provided.