553results about "Single bars/rods/wires/strips conductors" patented technology

An electrical conductor including an areal conductor having a constricted current path region along a length thereof is described, in which an accessory conductor bridges the constricted current path region along the length of the areal conductor such that a substantially uniform current density exists throughout the electrical conductor. In this way, current hot spots in the region of the current path constriction are avoided. The constricted current path region may be defined by two lengthwise edges of the areal conductor and the accessory conductor may include two circular or parabolic contours, each opposing and spaced apart from a respective edge of the areal conductor defining the constricted current path region.

Metal nanowires with high linearity can be produced using metal salts at a relatively low temperature. A transparent conductive film can be formed using the metal nanowires. Particularly, the transparent conductive film has high transmittance, low sheet resistance, and good thermal, chemical and mechanical stability. The transparent conductive film has a high electrical conductivity due to the high linearity of the metal nanowires. The metal nanowires take up 5% or less of the volume of the transparent conductive film, ensuring high transmittance of the transparent conductive film. Furthermore, the metal nanowires are useful as replacements for existing conductive materials, such as ITO, conductive polymers, carbon nanotubes and graphene. The metal nanowires can be applied to flexible substrates and other various substrates due to their good adhesion and high applicability to the substrates. Moreover, the metal nanowires can find application in various fields, such as displays and solar cell devices.

An aluminum (Al) alloy wire, which is an extra fine wire having a wire diameter of 0.5 mm or less, contains, in mass %, Mg at 0.03% to 1.5%, Si at 0.02% to 2.0%, at least one element selected from Cu, Fe, Cr, Mn and Zr at a total of 0.1% to 1.0% and the balance being Al and impurities, and has an electrical conductivity of 40% IACS or more, a tensile strength of 150 MPa or more, and an elongation of 5% or more. By producing the extra fine wire from an Al alloy of a specific composition containing Zr, Mn and other specific elements, though the extra fine wire is extra fine, it has a fine structure with a maximum grain size of 50 μm or less and is superior in elongation.

The invention relates to a heat-resistant aluminum-alloy conductor material for cables and a manufacture method thereof. The aluminum-alloy conductor material is prepared from the following components in percentage by weight: 0.3-1.0 percent of Fe, 0.01-0.3 percent of Cu, 0.01-0.3 percent of Mg, 0.01-0.3 percent of one, two or three of Mg, Ca, Mo and Sb and 0.05-0.8 percent of one or more rear-earth elements of Sc, Y and Er, not larger than 0.1 percent of Si, not larger than 0.15 percent of other impurities and the balance of Al. The aluminum-alloy conductor material has excellent conductivity, tensile performance, flexible performance and excellent heat resistance, can be used as insulated cable cores of wires and cables and is particularly suitable for overhead insulated conductor wire cores.

The invention belongs to the field of overhead power transmission technologies, and discloses an intermediate-strength aluminum alloy wire and a process for manufacturing the same. The intermediate-strength aluminum alloy wire is used for an overhead conducting wire. The process includes adjusting components of alloy to a certain extent, and controlling an online deaeration purification system, rolling and an online solid-solution quenching system; performing wire drawing and ageing processing to ultimately obtain the single intermediate-strength aluminum alloy wire. The tensile strength of the single intermediate-strength aluminum alloy wire ranges from 260MPa to 300MPa, the elongation of the single intermediate-strength aluminum alloy wire is higher than or equal to 3.5%, and the single-wire conductivity of the single intermediate-strength aluminum alloy wire is higher than or equal to 57.5% IACS. The intermediate-strength aluminum alloy wire and the process have the advantages that the intermediate-strength aluminum alloy wire manufactured by the aid of the process is high in strength and elongation and good in conductivity, and an intermediate-strength aluminum alloy stranded wire which is formed after a plurality of intermediate-strength aluminum alloy wires are stranded with one another can be used for an overhead power transmission line and is high in tensile weight ratio, so that the running safety of the line can be improved; magnetic hysteresis loss and eddy current loss due to conventional steel-cored aluminum stranded wires can be prevented by the stranded wire which is completely formed after the intermediate-strength aluminum alloy wires are stranded with one another, and electric energy loss of the line can be greatly reduced.

A flat cable conductor has: a conductor made of copper or a copper alloy; a first plating film made of tin and/or a tin-copper alloy, the first plating film being formed around the conductor; and a second plating film made of an alloy of tin and a third element selected from Au, Ag, Ni, Ge, Zn and Bi, the second plating film being formed around the first plating film. The third element has a concentration of 0.01 or more and 80 or less wt % at an outer surface of the second plating film.

The present disclosure relates to a graphene electrical wire and a method for manufacturing thereof. In particular, the graphene electrical wire includes a metal core having a shape of fiber, and a graphene layer synthesized on the outer surface of the metal core. Also, the method includes the steps of providing a metal core having a shape of fiber, and synthesizing a graphene layer on the outer surface of the metal core.

A solar cell electrode wire includes a core material having a volume resistivity of not greater than about 2.3 μΩ·cm and a proof strength in the range of about 19.6 MPa to about 85 MPa, and a hot-dip solder plating layer disposed on a surface of the core material. The core material is preferably an annealed pure copper material having an oxygen content of not higher than about 20 ppm. The core material may be a clad material including an interlayer of aluminum and copper layers disposed on opposite surfaces of the interlayer.

The invention provides a high-conductive heat-resistant aluminium alloy conductor and a preparation method thereof. The aluminium alloy conductor comprises the following chemical components by weight percent: 0.1-0.3% of Zr, 0.02-0.2% of Y, 0.01-0.15% of Sc and the balance of Al and other inevitable impurity elements, wherein the total amount of the other inevitable impurity elements is not more than 0.15%. The aluminium alloy conductor is prepared by the following steps: aluminium ingot fusion, boronizing, refining, alloying, secondary refining, direct water-cooling and continuous casting, annealing, drawing, stabilizing and the like. In the preparation method, the impurity content of the aluminium ingot is strictly controlled by the boronizing and the secondary refining, the conductivity of an aluminium alloyrond bar is ensured; through the stabilization treatment of a single aluminium alloy line, the conductivity of the heat-resistant aluminium alloy conductor is further improved, and the obdurability and twisting performance of the heat-resistant aluminium alloy conductor are regulated, so that the prepared aluminium alloy conductor has the characteristics of high conductivity and heat resistance, thereby meeting the requirements of industry on the performance of the aluminium alloy conductor and especially being suitable for manufacturing high-conductive heat-resistant cables.

Disclosed herein are a bus bar that simultaneously performs the electrical connection between a plurality of unit cells and the detection of voltage of the unit cells in a battery module having the unit cells mounted therein, wherein the bus bar includes: vertical bent parts formed by bending opposite ends of a strip-shaped bar body in the same direction, respectively, the vertical bent parts being provided with coupling grooves or protrusions; and a horizontal bent part formed by bending one of the vertical bent parts such that the horizontal bent part is parallel with the bar body, and a medium- or large-sized battery module including a plurality of unit cells, wherein the electrical connection between the unit cells and the detection of voltage of the unit cells are simultaneously performed using the bus bar. It is not necessary to use additional connecting members for detecting the voltage of unit cells when the bus bar according to the present invention is used in a battery module or a battery pack. Consequently, the battery module or the battery pack can be manufactured in a compact structure. Also, the electrical connection and the mechanical coupling are easily accomplished in spite of the compact structure. Furthermore, the electrical characteristics, such as electrical resistance at connected regions after the electrical connection, and the mechanical strength against external impacts or vibrations are excellent. In addition, it is possible to prevent occurrence of short circuits, which may be caused by a user or an operator, during a manufacturing process of the battery module or the battery pack or during a maintenance process of the battery module or the battery pack.

In a conductive material, on the surface of a base material composed of a Cu plate strip, a Cu-Sn alloy covering layer, which contains a Cu of 20-70at% and has an average thickness of 0.1-3.0[mu]m, and an Sn covering layer having an average thickness of 0.2-5.0[mu]m are formed in this order, and a part of the Cu-Sn alloy covering layer is exposed from the surface of the Sn covering layer at an exposing area rate of 3-75%. Reflow process is performed to the material surface, and preferably, the arithmetic average roughness Ra at least in one direction is 0.15[mu]m or more, the arithmetic average roughness Ra in all the directions is 3.0[mu]m or less, and the average thickness of the Cu-Sn alloy covering layer is 0.2[mu]m or more. The conductive material is manufactured by forming an Ni plating layer, and further, a Cu plating layer and an Sn plating layer as needed on the roughened base material surface, then by performing reflow process.

An improved conductive busbar assembly and power distribution track utilizing the improved conductive busbar assembly. The busbar assembly including an inner component adapted to engage a stab member of a plug-in unit and an outer component disposed about, and in contact with, the inner component. The inner and outer components are both formed from an electrically conductive material. The busbar assembly provides greater current-carrying capacity and permits take-off devices to be installed at any point along the busway run.

A bimetal buss bar assembly includes a positive battery cell terminal having a flat pad, a negative battery cell terminal having a flat pad, and a buss bar having a negative end and a positive end. The buss bar is attached to the positive battery cell terminal at the positive end and attached to the negative battery cell terminal at the negative end. At least one of the positive battery cell terminal, negative battery cell terminal, and buss bar have a bimetal interface.

The invention discloses a high-strength, high-conductivity and heat-resisting aluminum alloy bus and a production method thereof. The high-strength, high-conductivity and heat-resisting aluminum alloy bus comprises the following components in percentage by mass: 0.4-1.1 percent of magnesium (Mg), 0.3-0.9 percent of silicon (Si), 0.85-2.1 percent of copper (Cu), 0.03-0.3 percent of zirconium (Zr), 0.05-0.38 percent of rare earth (La), less than 0.4 percent of Ferrum (Fe), less than 0.01 percent of manganese (Mn) and the balance of aluminum (Al), wherein the ratio of Cu to Mg is 1.9-2.3. The production method comprises the steps of: uniformly annealing a cast ingot obtained through smelting and casting for 10-20h at a temperature of 470-550 DEG C, furnace-cooling; controlling the temperature of the cast ingot to be 480-540 DEG C for thermally deforming, wherein the final temperature of the thermal deformation is not less than 380 DEG C, the total deformation rate of the thermal deformation reaches 80-94 percent; then carrying out cold deformation on a thermally deformed blank at the total deformation rate of 80-90 percent; annealing the deformed product, wherein the annealing temperature is 330-350 DEG C, the insulation time is 2h; carrying out solution treatment for 1-3h at a temperature of 490-525 DEG C; and carrying out artificial ageing treatment for 24-36h at a temperature of 175-200 DEG C.

The invention relates to a high conductivity annealed aluminum wire and a manufacturing method thereof, in particular to a conductor material fabrication technique used for overhead conductors of a transmission line. The components of the annealed aluminum wire includes Si having the weight percent being less than or equal to 0.08%; Fe having weight percent being less than or equal to 0.02%; Cu having weight percent being less than or equal to 0.005%; B having weight percent of 0.07-0.15%; and Al having the rest weight percent; the annealed aluminum wire can be used for reducing the consumption of the transmission line, thereby effectively lowering the operating cost.

A method for producing high-intensity heat-resistant aluminum alloy line belongs to production technology field of materials applied to electrical engineering. It winnows component and content of alloy and controls technology to produce high-intensity aluminum alloy line. Select zirconium, copper, iron, silicon and rare earth with different percent of weigh and aluminum ingot into stove. The impurity content of aluminum ingot does not exceed 0.02%(besides silicon, iron, copper). Add alloying additive element and whisk, fine, component fast analyzing before entering stove. Put into continuous caster to produce aluminum alloy pole and draw into aluminum alloy line after tempered heat treatment and cooling to get production. In this method, the capability of production is satisfied the overhead designed demand for Three Gorges to serve the construct of transporting electrical power from west to east.

An assembly of a current sensor and a power conductor may include a first conductor, a second conductor spaced apart from the first conductor, a third conductor connecting one end of the first conductor to one end of the second conductor, and a fourth conductor vertically spaced apart from the third conductor and connecting one end of the first conductor to one end of the second conductor, a fixed space being defined between the third and fourth conductors.

A conductive connecting sheet with a side composite metal structure comprises at least two foreign metal sheets. Each metal sheet comprises at least one copper metal sheet or nickel metal sheet, and the rest is a metal sheet at the price lower than the price of copper and nickel. Each metal sheet is arranged along the length direction of the conductive connecting sheet. The adjacent metal sheets are combined closely on an end face, and lap joint does not exist among the adjacent metal sheets. The production method comprises the following steps that: in the at least two metal strips, the adjacent metal strips are firmly combined on the adjacent side to form a side composite board strip by side composite technology; and the produced board strip is subjected to rolling and process annealing treatment to produce a final board strip with thickness the same as that of the conductive connecting sheet, and then is punched and formed along the transverse direction. The invention makes the bestof the advantages of combination of the side composite metal board strips, can ideally meet the requirement of the overall high-conductivity and the transition welding component, prevent the negativeeffect of the traditional lap joint and obviously save scarce metal and improve the waste recovery value.

The invention discloses a method for preparing a copper magnesium alloy contact wire. In the method, an as-cast copper magnesium alloy structure is broken by continuous extrusion and is re-crystallized to obtain a tiny and even grain structure so as to make the copper magnesium alloy contact wire have the super fine-grain strengthening effect. The method comprises production process flows of continuous casting, continuous extrusion and cold machining molding. Compared with the conventional production process for the copper magnesium alloy contact wire, the method ensures that as-cast grains of an oxygen-free copper magnesium alloy casting pole molded by continuous casting are broken by the continuous casting and continuous extrusion processes, and are re-crystallized under the action of thermal deformation to form a copper magnesium alloy contact wire pole blank having a fine-grain structure, and the pole blank is subjected to cold machining to prepare the high-strength copper magnesium alloy contact wire having the super fine-grain strengthening effect. The production process is simple and reliable, and yield and quality completely meet the requirements of the conventional high-speed electrified railways.

The invention discloses a manufacturing method for fine copper-silver alloy wires. The method comprises steps as follows: (1) smelting and continuous casting of copper-silver alloy blanks; (2) drawing of copper-silver alloy rods; (3) intermediate heat treatment of copper-silver alloy wires; (4) drawing of the copper-silver alloy wires after intermediate heat treatment into copper-silver alloy wires with diameters in a range of 0.1-0.25 mm by an intermediate wire drawing machine. With the adoption of the manufacturing method for the fine copper-silver alloy wires, components and organization structures of raw copper-silver alloy materials can be stabilized, the texture and the performance of silver are stabilized through control on the distribution form of the silver in the copper-silver alloy wires through heat treatment during wire drawing, wire breakage due to local stress concentration caused by unstable components and organization structures during wire machining is avoided, and manufacturing of the fine copper-silver alloy wires is guaranteed.

The invention provides copper alloy contact lines and a preparation method thereof, wherein, the method includes the following steps: (1) preparing master alloy powders of Cu-AI, in which 0.21-0.53wt% is the content of AI, and the rest is copper; (2) using the master alloy powders of Cu-AI obtained from step (1) to prepare an oxygen source of Al2O3-Cu2O, in which the weight ratio of Cu and AI keeps unchanged; (3) mixing the master alloy powders of Cu-AI obtained from step (1) and the oxygen source of Al2O3-Cu2O obtained in step (2), wherein, the weight ratio of the oxygen source of Al2O3-Cu2O in the mixture is 10-25wt%; (4) carrying out internal oxidation and reduction treatment for the mixture obtained in step (3), so as to obtain alloy powders of Cu-Al2O3, in which the content of Al2 O3 is 0.4-1.0wt%; (5) suppressing the alloy powders of Cu-Al2O3 obtained in step (4) into billets and then carrying out sintering treatment; (6) molding the suppressed and sintered billets obtained in step (5) into bars; (7) making the bars obtained in step (6) into contact lines with required section size by drawing. The copper alloy contact lines prepared by the method present good conductivity, high mechanical strength and softening temperature, good performance of friction and abrasion resistance.

A method for producing a higher-strength, non-grain-oriented electrical strip, according to which a slab is cast from a molten mass, the slab is hot-rolled and then cold-rolled—optionally a hot-strip annealing can be carried out between the hot-rolling and the cold-rolling —and the cold strip is annealed in order to produce a partially recrystallized structure so that the mechanical strength values ReH can be set within the range of 450 MPa to 850 MPa at an annealing temperature of between 600° C. and 800° C. for 60 s to 300 s.

A magnetic element including: a first magnetic core including a coil which is wound by a predetermined number of turns; a second magnetic core which includes the coil in the inside thereof and which is combined along the outer circumference of the first magnetic core; and a metal terminal which connects the coil and a mounting substrate, wherein the metal terminal includes a fixing portion for fixing the second magnetic core in a state of combining the first magnetic core and the second magnetic core.

The subject of the invention is an electric power switchgear, an insulating radiator, and a method for installing the radiator in an electric power switchgear, and in particular in a medium or high voltage switchgear. The electric power switchgear comprising working elements placed in the housing and connected with busbars and branches, and cooled with air, is characterized in that it contains at least one insulating radiator made of thermoplastic material of increased thermal conductivity λ≧2 W/mK, which is placed in the electric field of the switchgear and which is connected by a non-permanent fastening to at least one busbar or/and at least one branch. The insulating radiator designed for the switchgear is an injection molding including a base plate to whose top face a system of heat evacuating elements of identical or diverse shape is attached, and to its side surfaces elastic assembly catches are fixed.

A distribution line structure for electric power supply is provided with a pair of first conductors and a second conductor. Each of the first conductors is provided with a first main portion formed in a flat strip shape and first connection portions, and the second conductor is provided with a second main portion formed in a flat strip shape and second connection portions. The first conductors are connected with each other at the first connection portions. The first and second main portions are layered and separated each other by insulators. The second main portion is put between the first main portions.

A conductor for connecting terminals of a battery in which a conductor for connecting terminals (8) can be easily welded to both positive-electrode terminal (1) and negative-electrode terminal (4), and an assembled battery using the same are provided. The conductor for connecting terminals (8) is formed in such a manner that a plate-shaped part (8a) including an aluminum member is overlapped with a plate-shaped part including a second metal having a melting point higher than that of the aluminum member, a first region having the exposed aluminum member and a second region having the exposed second metal are formed in one surface, and the second metal is exposed to a region opposed to the second region, in the other surface. The conductor for connecting terminals (8) connects the positive-electrode terminal (1) including the aluminum member of a non-aqueous electrolyte secondary battery (7) to the negative-electrode terminal (4) of another battery. The first region of the conductor for connecting terminals (8) is brought in contact with the positive-electrode terminal (1) and connected and fixed thereto by welding, and the second region thereof is brought in contact with the negative-electrode terminal (4) and connected and fixed thereto by welding.

The invention relates to a method and a device for downwards leading and continuously casting a copper-wrapped steel core wire. The method for downwards leading and continuously casting a copper wire covering steel core wire comprises the following steps: a continuous casting furnace (8) with an inner cavity is used, the bottom of the continuous casting furnace (8) is provided with a graphite crystallizing mold (19) communicated with the inner cavity of the continuous casting furnace (8), the graphite crystallizing mold (19) comprises a cooling device and a basically vertical mold cavity (20), a steel core wire (2) inside the continuous casting furnace (8) penetrates through the basically vertical mold cavity (20) from top to bottom, copper liquid inside the continuous casting furnace (8) flows into a gap between the steel core wire (2) and the graphite crystallizing mold (19) and is congealed to wrap the steel core wire (2), and then a copper-wrapped steel core wire (10) is pulled out of the graphite crystallizing mold (19) in an interval way. Compared with the prior art, the method for downwards leading and continuously casting a copper-wrapped steel core wire can increase the thickness of copper wrapped on steel core wires, thereby enhancing the concentricity of the steel core wires and wrapping copper layers.

A bus bar assembly comprises a plurality of conductive plate-shaped bus bars and a resin mold section in which a plurality of conductive plate-shaped bus bars are partially embedded. In a method for manufacturing the bus bar assembly, firstly a plurality of conductive plate-shaped bus bars are disposed within a cavity formed by a die such as to be stacked in a thickness direction Z with a predetermined amount of space therebetween. Second, a first end and a second end of each bus bar are respectively supported by jigs in the width direction Y. Next, the cavity in the die is filled with the insulating resin and the plurality of bus bars are molded into a single body. After that, jigs are removed from the bus bars and jig placement portions are formed in the resin mold section.

An aluminum alloy conductor having a high conductivity and a high bending fatigue resistance, and further achieving an appropriate proof stress and a high elongation is provided. An aluminum alloy conductor of the present invention has a composition consisting of Mg: 0.10 mass% to 1.00 mass%, Si: 0.10 mass% to 1.00 mass%, Fe: 0.01 mass% to 2.50 mass%, Ti: 0.000 mass% to 0.100 mass%, B: 0.000 mass% to 0.030 mass%, Cu: 0.00 mass% to 1.00 mass%, Ag: 0.00 mass% to 0.50 mass%, Au: 0.00 mass% to 0.50 mass%, Mn: 0.00 mass% to 1.00 mass%, Cr: 0.00 mass% to 1.00 mass%, Zr: 0.00 mass% to 0.50 mass%, Hf: 0.00 mass% to 0.50 mass%, V: 0.00 mass% to 0.50 mass%, Sc: 0.00 mass% to 0.50 mass%, Co: 0.00 mass% to 0.50 mass%, Ni: 0.00 mass% to 0.50 mass%, and the balance: Al and incidental impurities, wherein the aluminum alloy conductor has an average grain size of 1 µm to 35 µm at an outer peripheral portion thereof.

The invention discloses a preparation method of an electrified railway chromium-zirconium-copper contact line. Copper is taken as a substrate, 0.30-0.70% of Cr and 0.10-0.35% of Zr in percentage by weight are added into the substrate, and the total sum of impurities is no greater than 0.05%. The preparation method comprises the following steps: performing vacuum melting and vacuum horizontal continuous casting, thereby obtaining a long-length large cross section chromium-zirconium-copper continuous cast blank; performing full hot continuous rolling and on-line solid solution, thereby obtaining a long-length chromium-zirconium-copper line rod disc; drawing and peeling the disc, and performing cold continuous rolling, thereby reducing the diameter; further performing aging treatment to reinforce the disc; further performing cold continuous rolling by using a Y-type rolling machine, thereby pre-forming the line; and finally performing fine drawing formation once. The chromium-zirconium-copper contact line produced by using the preparation process is fine and uniform in grain, free of defect, high in strength, high in conductivity and high in softening temperature, and applicable to industrialized production.