A wire-drawing method comprises providing a rod comprising a wrapped sheet, wherein the sheet comprises a plurality of copper layers and a plurality of graphene layers; extracting an inner layer of the wrapped sheet from the rod to form a spiral; and forming a wire by feeding the spiral through an opening of a die unit.

A composite structure comprises a copper layer having a thickness of no larger than 25 ?m, and first and second graphene layers sandwiching the copper layer.

A method for forming a multilayer composite structure comprises providing a first sheet comprising a copper-comprising layer sandwiched by first and second graphene layers, wrapping the first sheet to form a first rod, and compacting the first rod to form a first multilayer composite structure.

A precursor wire for compound superconducting wire includes: a compound superconducting precursor member configured by compound superconducting precursor filaments, and a first matrix precursor embedding the compound superconducting precursor filaments and including a first stabilizing material; a reinforcing member arranged at the outer circumferential side of the compound superconducting precursor member, and configured by reinforcing filaments, and a second matrix embedding the reinforcing filaments and including a second stabilizing material; and a cylindrical stabilizing member arranged to at least one of the inner circumferential side or outer circumferential side of the reinforcing member, and consisting of a third stabilizing material, in which an aspect ratio Ab1 (Wb1/Tb1) of a width dimension Wb1 relative to a thickness dimension Tb1 of the compound superconducting precursor member in a cross section perpendicular to a longitudinal direction of the compound superconducting precursor member is 1.80 or more.

Disclosed is a device for applying marking tubes onto cables including: a driving mechanism for a cable along a driving axis; at least one buffer pipe in a producing position aligned with the driving axis, the buffer pipe having dimensions adapted both for a cable to be marked to run through the buffer pipe and for a number of marking tubes to be threaded onto the buffer pipe; a pushing unit engaging and pushing along the driving axis at least one first out marking tube of the marking tubes threaded on the buffer pipe until this first out marking tube exits the buffer pipe and is released onto the cable. Also disclosed is a method for applying marking tubes onto cables using a buffer pipe. The cable is always driven in the same forward direction and there is no limitation of cable length or marking tube number or location.

A process for manufacturing finished wire and cable having reduced coefficient of friction and pulling force during installation, includes providing a payoff reel containing at least one internal conductor wire; supplying the at least one internal conductor wire from the reel to at least one extruder; providing the least one extruder, wherein the at least one extruder applies an insulating material and a polymerized jacket composition over the at least one internal conductor wire, wherein the polymerized jacket composition comprises a predetermined amount by weight of nylon; and at least 3% by weight of a silica providing a cooling device for lowering the temperature of the extruded insulating material and the polymerized jacket composition and cooling the insulating material and the polymerized jacket composition in the cooling device; and, reeling onto a storage reel the finished, cooled, wire and cable for storage and distribution.

A cable-processing system comprising a cable-processing machine for processing ends of cables. The cable-processing machine has: an input side for receiving the cables; a plurality of cable-processing stations; a cable transport device for transporting at least one cable with a movable gripper; and an output side for discharging a processed cable. The cable transport device has a cable conveying device designed as a multiple-store device having a plurality of cable holders. The multiple-store device is designed as an autonomous or guided transporter. At least one of the grippers is designed as a transfer gripper to remove the cables from the cable holder and to feed them to at least one of the cable-processing stations and/or to at least one further gripper acting as a transfer gripper which can be moved using a frame-supported transfer mechanism to transfer the cable to one of the cable-processing stations.

An electric wire accommodation device includes an accommodation device body, an electric wire reel being a reel around which an electric wire is wound and configured to be accommodated inside the accommodation device body, in which the electric wire is configured to be pulled out to outside of the accommodation device body and to be intermittently reeled out by a reel-out mechanism provided outside the accommodation device body, and an electric wire gripping member attached on a pull-out route in the accommodation device body along which the electric wire is pulled out and configured to grip the electric wire with a gripping force smaller than a reel-out force applied by the reel-out mechanism.

An object of the present invention is to provide a conductive wire for electrical properties testing and having high hardness and high conductivity. A conductive wire for electrical properties testing that achieves the above object is composed of a copper alloy, and includes in its outer periphery portion a fibrous structure extending at an angle of 0.5 to 20 degrees with respect to the length direction of the conductive wire.

A twist application device, including a feeder (1) for feeding conductor ends (2a . . . 2c) of at least two conductors (3a . . . 3c), and a rotatably mounted twist application head (4) for twisting the conductors (3a . . . 3c). The twist application device also includes a controller (7), connected with a drive (8) for first clamping jaws (5a . . . 5f) of the feeder (1), and is equipped for control of the latter. The distance (a) between clamped conductor ends (2a . . . 2c) is set at an adjustable value before the transfer of the conductor ends (2a . . . 2c) from the feed device (1) into the twist application head (4). A method of twisting at least two conductors (3a . . . 3c), in which the referred-to distance (a) is set at an adjustable value before clamping of the conductor ends (2a . . . 2c) in the second jaws (6a, 6b) of the twist application head (4).