A method for making contact wires for sliprings comprising the steps of: coating and/or plating a wire with a first metal of the group of nickel, chrome or a combination thereof; coating and/or plating the wire with a second metal of the group of gold, silver, or a combination thereof; delivering laser radiation and generating an interference pattern of the laser radiation to the surface of the wire; heating the surface selectively as defined by the interference pattern, modifying of the crystal structure and/or providing protrusions and/or recesses due to melting and/or evaporation of the surface material.

A steel wire as an armoring wire for a power cable for transmitting electrical power, where the steel wire has a steel core and a non-magnetic coating. The coating has a thickness in the range of 0.2 mm to 3.0 mm and selected from metals or alloys having a melting point below 700 C.

A process for drawing a steel wire, in which the wire has a carbon content by weight C of 0.4%C0.74%, includes an uninterrupted series of drawing steps. The drawing steps draw the wire from a diameter d to a diameter d, with d and d being expressed in mm, and with a true strain of the steel wire being given by =2ln(d/d), with >4.

Disclosed is a method for forming a square-wire conductor, which includes: providing a circular conductor with a diameter d; passing the conductor through a gap of a longitudinal calendering roller to longitudinally calender the conductor up and down to form a conductor with flat upper and lower surfaces, the gap L1 of the longitudinal calendering roller is 0.886 d to 0.911 d; longitudinally and transversely straightening the conductor; passing the conductor through a gap of a transverse calendering roller to transversely calender the conductor left and right to form a conductor with flat left and right surfaces, the gap L2 of the transverse calendering roller is 0.886 d to 0.911 d; and longitudinally and transversely straightening the conductor.

A bar of noble metal or an alloy containing noble metal having a mass mB is subdivided into nm miniature bars 2, 3 each having a specified mass mk, wherein n and m each denote an integer 2, there being an interconnection of solid material (8) between directly adjacent miniature bars (2, 3). Another bar is affixed to a backing (13), to which the miniature bars are releasably attached. A method for the production of the bar consists in dividing up the same while leaving an interconnection of solid material or producing an arrangement thereof on a backing.

There is provided a training system capable of performing work. The system has a shape memory alloy (SMA) actuator exhibiting a generally planar transformational behavior. The system further has one or more heating elements for transforming the SMA actuator from an original shape to a trained shape, thereby performing work.

A bar of noble metal or an alloy containing noble metal having a mass mB is subdivided into nm miniature bars 2, 3 each having a specified mass mk, wherein n and m each denote an integer 2, there being an interconnection of solid material (8) between directly adjacent miniature bars (2, 3). Another bar is affixed to a backing (13), to which the miniature bars are releasably attached. A method for the production of the bar consists in dividing up the same while leaving an interconnection of solid material or producing an arrangement thereof on a backing.

Disclosed is an extruded aluminum wire including: Fe, Cu, Ti, Mn, Mg, Cr, B, Ga, V and Zn in the total content of 0.01% by mass or less, and one or more components selected from the group consisting of Ni, Y and Si, with the balance being Al and inevitable impurities, wherein, in a cross-section perpendicular to the longitudinal direction of the extruded wire, an average grain size measured by electron backscatter diffraction is 15 to 50 m, respectively, in both a central measurement region including a center point of the cross-section and a peripheral measurement region in contact with the outer periphery of the cross-section.

There is provided a method of training a shape memory alloy (SMA) workpiece. The method includes applying a force couple to a shape memory alloy (SMA) workpiece to impart a generally planar transformational behavior to the SMA workpiece to obtain a trained shape memory alloy (SMA) workpiece.

A metal wire, which is one of a tungsten wire and a tungsten alloy wire, includes alkali metal on the surface thereof. The amount of alkali metal is at most 2.0 g per 1 g of the metal wire.