H01B1/023

Welded conductors for power transmission cables
20210398708 · 2021-12-23 ·

A conductor for a power transmission cable has a first conductor element and a second conductor element connected by a welding joint. The welding joint has a welding material alloy where the welding material alloy has an Al content of from 90% to 98% by weight, a Ni content of from 2% to 8% by weight, and a content of other metals and/or substances from 0% to 2% by weight, based on the total weight of the welding material alloy, wherein the Al content, Ni content and content of other metals and/or substances sum up to 100% by weight.

Side sealing device, twin-roll continuous casting apparatus, and method of manufacturing cast strip

A side sealing device for a twin-roll continuous casting apparatus, which supplies molten metal to a molten metal pool portion formed by a pair of rotating mold rolls and a pair of side weirs through an immersion nozzle and causes solidified shells to be formed and to grow on peripheral surfaces of the mold rolls to manufacture a cast strip, seals end surface sides of the mold rolls by each side weir. The side sealing device includes a side weir pressing unit that presses the side weir against end surfaces of the mold rolls, and a side weir lifter that pulls the side weir at least upward in a vertical direction.

ALUMINUM ALLOY, ALUMINUM ALLOY WIRE, AND METHOD FOR PRODUCING ALUMINUM ALLOY

An aluminum alloy having a composition including 0.1% by mass or more and 2.8% by mass or less of Fe; and 0.002% by mass or more and 2% by mass or less of Nd.

INSULATING WIRE WITH HIGH THERMAL RESISTANCE AND RESISTANT TO PARTIAL DISCHARGES AND WIRE DRAWING PROCESS

A manufacturing of wires with optimized insulation properties, providing an insulating wire and the wire drawing process for producing it. The wire enamel has three layers: base layer (2), middle layer (3) and top layer (4), wherein these layers wrap around the conducting wire (1) in this order. The wire drawing process is carried out by a) Primary drawing; b) Final drawing and c) Enameling process carried out in line, wherein the enameling is conducted preferably with a specific number of dies for each layer. The process and composition conditions of the wire allowed to provide a triple layer wire that presents high resistance to partial discharges, high thermal class and high resistance to abrasion, thus, increasing the service lifetime of the wire in demanding motor applications when high thermal, high mechanical and high electrical resistance are required.

Seamless electrical conduit

Embodiments of the present disclosure generally relate to a unitary electrical conduit that includes a central conductor, a socket coupled to a first end of the central conductor, a male insert coupled to a second end of the central conductor a dielectric sheath surrounding the central conductor, and an outer conductor surrounding the dielectric sheath, wherein a substantially 90 degree bend is formed along a length thereof.

Aluminum alloy wire rod and producing method therefor

A wire rod made of an aluminum alloy. The aluminum alloy includes Al crystal grains, an Al—Zr compound, and an Al—Co—Fe or Al—Ni—Fe compound. The aluminum alloy includes high-angle tilt crystal grain boundaries, each of which has a difference between crystal orientations in both its sides of 15 degrees or more, and low-angle tilt crystal grain boundaries, each of which has a difference between crystal orientations in both its sides of 2 degrees or more and less than 15 degrees. An average grain diameter of ones of the Al crystal grains surrounded by the high-angle boundaries is 12 μm or more. An average grain diameter of the ones of the Al crystal grains surrounded by the high-angle boundaries, ones of the Al crystal grains surrounded by the high-angle boundaries and the low-angle boundaries, and ones of the Al crystal grains surrounded by the low-angle boundaries, is 10 μm or less.

JOINING STRUCTURE OF DIFFERENT KINDS OF CONDUCTORS, JOINING METHOD OF DIFFERENT KINDS OF CONDUCTORS, AND JOINT OF POWER CABLES
20220172864 · 2022-06-02 ·

Disclosed are a joining structure of different kinds of conductors, a joining method of different kinds of conductors, and a joint of power cables capable of improving joining reliability of a junction of the different kinds of conductors.

Aluminum alloy wire, aluminum alloy strand wire, covered electrical wire, and terminal-equipped electrical wire

An aluminum alloy contains equal to or more than 0.005 mass % and equal to or less than 2.2 mass % of Fe, and a remainder of Al and an inevitable impurity. In a transverse section of the aluminum alloy wire, a surface-layer void measurement region in a shape of a rectangle having a short side length of 30 μm and a long side length of 50 μm is defined within a surface layer region extending from a surface of the aluminum alloy wire by 30 μm in a depth direction, and a total cross-sectional area of voids in the surface-layer void measurement region is equal to or less than 2 μm.sup.2.

Flat cable connection

The present invention relates to a first metal cable (1) having a flat upper (A) and a flat lower (B) surface, comprising at least one hollow riser (2) extending approximately 90 degrees from one of the flat surfaces of the first metal cable, the hollow riser being 5 configured to house an end of a second metal cable (3). A connected structure comprising a first metal cable wherein a second metal cable is inserted into the hollow riser (2) of the first metal cable and joined with the first metal cable. it also relates to a method of making a connected structure, joining a first metal cable to a second metal cable by friction welding the second metal cable (3) to the first metal cable by 10 contacting a rotating tool (4) with the lower surface of the first metal cable in the area underneath the hollow riser.

ALUMINUM-CARBON NANOTUBE METAL MATRIX COMPOSITE MAGNET WIRES
20230268108 · 2023-08-24 ·

A magnet wire including a conductive core of aluminum and carbon (e.g., carbon nanotubes). The magnet wire also includes an insulating layer on a surface of the conductive core. The insulating layer and the conductive core collectively form a fully insulated wire of a coil associated with a magnet. The magnet wire is configured to form, for example, the coil of the magnet for any of an electrical motor, an electrical generator, a transformer, an inductor, or a speaker.