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

Intermediate-strength aluminum alloy wire and process for manufacturing same

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.
Owner:FAR EAST CABLE +2

High-conductive heat-resistant aluminium alloy conductor and preparation method thereof

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.
Owner:UNIV OF SCI & TECH BEIJING

Novel bus bar for electric connection and middle and battery module comprising the same

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.
Owner:LG ENERGY SOLUTION LTD

High-strength, high-conductivity and heat-resisting aluminum alloy bus and production method thereof

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.
Owner:BAOTOU JI TAI RARE EARTH ALUMINUM CO LTD

Conductive connecting sheet with side composite metal structure and production method thereof

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.
Owner:徐卓辉 +1

Method for preparing copper magnesium alloy contact wire

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.
Owner:CHINA RAILWAY CONSTR ELECTRIFICATION BUREAUGRP +1

Copper alloy contact wire and method of producing the same

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.
Owner:DATANG LUOYANG SHOUYANGSHAN POWER PLANT

Conductor for connecting terminals, assembled battery, and method for producing assembled battery

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.
Owner:GS YUASA INT LTD

Method and device for downwards leading and continuously casting copper wire covering steel core

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.
Owner:江苏金合益复合新材料有限公司
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