Method for the continuous production of mesh mats made of steel wire having a plurality of parallel longitudinal wires that are welded to transverse wires extending in a manner spaced apart from one another, wherein hot- or cold-rolled wire material is used as the longitudinal and transverse wires, wherein the longitudinal wires are stretched in a stretching apparatus while being fed to the welding operation, wherein the longitudinal wires are drawn through the stretching apparatus by means of a capstan drum, and wherein the transverse wire material is also stretched in a separate stretching apparatus while being fed to the welding operation, and an installation for carrying out the method.

A method for producing a further wire, wherein the method includes, providing a first wire and feeding the first wire through a furnace to obtain the further wire. A further cast of the further wire is larger than a first cast of the first wire.

In a device, in particular machine, for producing Wiegand wire from a wire, in particular pulse wire, and a method for operating a device, the device having a first clamping chuck, a second clamping chuck, and a third clamping chuck, the wire being fed through each of the three clamping chucks, in particular so that the wire is able to be connected in a releasable and torsionally fixed manner to the three clamping chucks, in particular able to be connected to the three clamping chucks in a releasable, torsionally fixed and nonpositive manner. The clamping chucks are set apart from one another in the wire direction, and the second clamping chuck is situated between the first and the third clamping chuck in the wire direction. The second clamping chuck is rotatably mounted so that a torsion is able to be applied to a first wire section and the reverse torsion is able to be applied to a second wire section, the first wire section being situated between the first clamping chuck and the second clamping chuck, the second wire section being situated between the third clamping chuck and the second clamping chuck. The distance in the wire direction between the first and the second clamping chuck is controllable and/or regulatable with the aid of a first linear actuator, and the distance in the wire direction between the second and the third clamping chuck is controllable and/or regulatable with the aid of a second linear actuator.

Provided are a steel cord and a single steel wire having excellent straightness quality for reinforcing tire and a method of manufacturing the steel cord and single steel wire. The steel cord and the single steel wire include a wire undergoing through a drawing process, a heating process performed in a state in which tension is applied to the wire, and a cooling process; and a winding portion on which the wire is wound, the winding portion having a diameter greater than a diameter of the wire, wherein, when an end of the wire that has been wound on the winding portion for six months to one year is fixed on a point and the wire is pulled down vertically to 400 mm, a distance between a first axis that is perpendicular to the point and an opposite end of the wire is 30 mm or less. The method of manufacturing the steel cord and single steel wire having excellent straightness quality for reinforcing tire includes: a wire preparing process, a heating process, a cooling process, and a winding process.

To provide a metal wire and an electric wire of high mechanical strength and high ductibility that have sufficiently increased ductibility as well as sufficiently increased mechanical strength. A metal wire manufactured at least by being subjected to an extension in which a metal wire is extended in an axial direction, and having a hardness distribution in which hardness decreases toward a specific peripheral portion from a central portion in a cross-section orthogonal to axis, whereby a softened peripheral portion becomes to show a good malleability as well as a high resistance to cracking, so as to attain an improvement of mechanical strength and ductibility.

Provided are a steel cord and a single steel wire having excellent straightness quality for reinforcing tire and a method of manufacturing the steel cord and single steel wire. The steel cord and the single steel wire include a wire undergoing through a drawing process, a heating process performed in a state in which tension is applied to the wire, and a cooling process; and a winding portion on which the wire is wound, the winding portion having a diameter greater than a diameter of the wire, wherein, when an end of the wire that has been wound on the winding portion for six months to one year is fixed on a point and the wire is pulled down vertically to 400 mm, a distance between a first axis that is perpendicular to the point and an opposite end of the wire is 30 mm or less. The method of manufacturing the steel cord and single steel wire having excellent straightness quality for reinforcing tire includes: a wire preparing process, a heating process, a cooling process, and a winding process.

In a device, in particular machine, for producing Wiegand wire from a wire, in particular pulse wire, and a method for operating a device, the device having a first clamping chuck, a second clamping chuck, and a third clamping chuck, the wire being fed through each of the three clamping chucks, in particular so that the wire is able to be connected in a releasable and torsionally fixed manner to the three clamping chucks, in particular able to be connected to the three clamping chucks in a releasable, torsionally fixed and nonpositive manner. The clamping chucks are set apart from one another in the wire direction, and the second clamping chuck is situated between the first and the third clamping chuck in the wire direction. The second clamping chuck is rotatably mounted so that a torsion is able to be applied to a first wire section and the reverse torsion is able to be applied to a second wire section, the first wire section being situated between the first clamping chuck and the second clamping chuck, the second wire section being situated between the third clamping chuck and the second clamping chuck. The distance in the wire direction between the first and the second clamping chuck is controllable and/or regulatable with the aid of a first linear actuator, and the distance in the wire direction between the second and the third clamping chuck is controllable and/or regulatable with the aid of a second linear actuator.

A wire, preferably a bonding wire for bonding in microelectronics, contains a copper core with a surface and coating layer containing aluminum superimposed over the surface of the copper core. The ratio of the thickness of the coating layer to the diameter of the copper core is from 0.05 to 0.2 m. The wire has a diameter in the range of from 100 m to 600 m and specified standard deviations of the diameter of the copper core and of the thickness of the coating layer. The invention further relates to a process for making a wire, to a wire obtained by the process, to an electric device containing at least two elements and the wire, to a propelled device containing the electric device, and to a process of connecting two elements through the wire by wedge bonding.