WO2006114022A1 - Procédé de fabrication d'une barre omnibus d’aluminium recouverte de cuivre - Google Patents

Procédé de fabrication d'une barre omnibus d’aluminium recouverte de cuivre Download PDF

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Publication number
WO2006114022A1
WO2006114022A1 PCT/CN2005/000585 CN2005000585W WO2006114022A1 WO 2006114022 A1 WO2006114022 A1 WO 2006114022A1 CN 2005000585 W CN2005000585 W CN 2005000585W WO 2006114022 A1 WO2006114022 A1 WO 2006114022A1
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WO
WIPO (PCT)
Prior art keywords
copper
aluminum
bar
clad aluminum
bus
Prior art date
Application number
PCT/CN2005/000585
Other languages
English (en)
French (fr)
Inventor
Xishan Yang
Original Assignee
Dalian Fushi Bimetallic Manucturing Co. Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dalian Fushi Bimetallic Manucturing Co. Ltd filed Critical Dalian Fushi Bimetallic Manucturing Co. Ltd
Priority to PCT/CN2005/000585 priority Critical patent/WO2006114022A1/zh
Priority to US11/568,874 priority patent/US20110094099A1/en
Priority to JP2007545813A priority patent/JP4117340B2/ja
Priority to CNB2005800014569A priority patent/CN100501879C/zh
Publication of WO2006114022A1 publication Critical patent/WO2006114022A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/14—Preventing or minimising gas access, or using protective gases or vacuum during welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • B23K20/2333—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer one layer being aluminium, magnesium or beryllium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/36—Electric or electronic devices
    • B23K2101/38—Conductors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing

Definitions

  • the invention relates to a busbar, in particular to a method for manufacturing a bimetal copper-clad aluminum busbar.
  • the existing copper busbar has good electrical conductivity, small electrical resistivity, high mechanical strength and good anticorrosive performance, but because of its high price, heavy weight, high cost and limited use, the aluminum busbar can not meet the requirements although the cost is low;
  • the aluminum busbar structure is similar to this structure, but its manufacturing method is completely different; the latter is the casing heating and rolling method.
  • the method for fabricating a copper clad aluminum bus bar of the present invention aims to combine the advantages of two specific conductive metals, copper and aluminum in one conductor, and provides a reliability without loss.
  • Another object of the present invention is to replace the pure copper busbar in world-class electrical equipment: low-voltage power distribution, switchboard, motor control center, instrument panel, busbar box, overhead busway system, high-voltage power distribution, vacuum switchgear , generator sets, transformers, rectifiers, motor windings, fuses and crane power supply systems.
  • the manufacturing method of the copper-clad aluminum bus bar comprises the following steps: Preparation of the busbar blank: Selecting a copper pipe and an aluminum-rod, mechanically brushing the inner hole of the copper pipe and the outer circle of the aluminum bar, removing the scale, and then placing the protective atmosphere In the protective atmosphere, the aluminum rod is placed in the copper tube, the two ends are sealed to prevent the air from entering, the objects sealed at both ends are placed in the heating furnace to heat and prevent oxidation, and the metallurgical combination is drawn; Forming: The fabricated busbar blanks are rolled into rolling mills and rolled into copper-clad aluminum busbar conductors of different specifications.
  • the method for manufacturing the bus bar blank comprises the following steps: a.
  • the outer surface of the aluminum rod and the inner surface of the copper tube are brushed off with a steel brush at a high speed rotation of the brush, wherein The aluminum rod brush is arranged at a quarter of a quarter, and the inner wall of the copper tube is swept by a spiral steel brush in the copper tube to complete the brushing; b.
  • the protective atmosphere argon gas, the brushed aluminum rod and the copper tube are in front of the device Placed in an argon-filled storage The inside of the box is protected from oxidation; C.
  • the aluminum rod is inserted into the copper tube by pushing in, that is, the copper tube and the aluminum rod are gap-fitted, and can be pushed in with a little force; d. End caps are added at both ends of the copper tube, and argon is used. Arc welding is tight; e, heating temperature is 600 °C-660 °C; f, drawing to form metallurgical bonding and required outer diameter.
  • the rolling of the hole-shaped rolling mill is a single frame or a plurality of frames, and a certain amount of flattening is completed by each rolling;
  • the density of the copper-clad aluminum bus bar is 3.63 g/cm 3 ;
  • the tensile strength is > 130 Mpa ;
  • the DC resistance is 0. 0265 ⁇ 2 /m at 20 ° C;
  • the finished section of the copper clad aluminum busbar can be up to 100 legs wide and 10 ft thick.
  • the copper-clad aluminum busbar combines the advantages of two defined conductive metals, copper and aluminum into one conductor, providing economical and light weight over pure copper without compromising reliability. Conductor. Compared with pure copper busbars, copper-clad aluminum busbars have considerable savings in material and labor costs, with the lowest cost, saving 30% to 50%, saving a lot of copper resources and being an environmentally friendly product.
  • the copper-clad aluminum busbar density is 3.63 g 111 3
  • the pure copper busbar density is 8.9 g/cm 3
  • the difference is 2.47 times, the same weight, the same width of the busbar
  • the copper-clad aluminum busbar is longer than the pure copper busbar 2 47 times.
  • Copper clad aluminum busbars can be used in a wide range of applications: can be used in world-class electrical equipment, can replace pure copper busbar: low-voltage power distribution, switchboard, motor control center, instrument panel, bus box, overhead busway system, high-voltage power distribution, vacuum Switching devices, generator sets, transformers, rectifiers, motor windings, fuses and crane power supply systems.
  • the method for manufacturing the copper-clad aluminum busbar comprises two steps: the production of the busbar blank: the outer diameter of the copper tube is 20-70 and the corresponding size of the aluminum rod is selected, and the outer diameter of the inner hole of the copper tube and the outer circle of the aluminum rod are mechanically brushed. Remove the oxide scale, then put it into a protective atmosphere to be assembled. Put the aluminum rod into the copper tube in a protective atmosphere, and seal the ends to prevent air from entering. Put the sealed objects in the heating furnace to warm and prevent it.
  • Oxidation, Pulling forms a metallurgical bond; pressurize immediately after taking out the object to promote bonding; Flattening: The prepared busbar blank is passed through a hole-type rolling mill and rolled into copper-clad aluminum busbar conductors of different specifications.
  • the method for manufacturing the bus bar blank includes the following steps: a. Mechanical brushing: the outer surface of the aluminum rod and the inner surface of the copper tube are brushed off by the steel brush at a high speed of the brush, wherein the aluminum is brushed off.
  • the rod brush is arranged at a quarter of the circumference of the rod, and the inner wall of the copper tube is slid in the copper tube by the spiral steel brush to complete the brushing;
  • the protective atmosphere the argon gas can be placed, and the brushed aluminum rod and the copper tube are placed in front of the device.
  • the aluminum rod is inserted into the copper tube with a special push-in device, that is, the copper tube and the aluminum rod are sliding fit, and can be pushed in with a little force;
  • d in copper End caps are added to both ends of the tube, and the argon arc is used to secure;
  • the heating temperature is 660 ° C;
  • f drawing to form a metallurgical bond and the required outer diameter.
  • the rolling of the hole-shaped rolling mill is single or multiple, and a certain amount of flattening is completed by each rolling.
  • Example 1 The heating temperature in Example 1 was 600 °C.
  • Example 1 The heating temperature in Example 1 was 640 °C.

Description

铜包铝母线的制作方法
技术领域
本发明涉及一种母线， 尤其涉及一种双金属的铜包铝母线的制作方法。
背景技术
现有的铜母线导电性能好， 电阻率小， 机械强度大， 防腐性能好， 但由于 价格较贵， 重量大， 成本高， 使用受到限制， 而铝母线虽然成本低但不能满足 要求； 铜包铝母线结构近似于本结构， 但其制作方法完全不同； 后者是套管加 热轧压法。
发明内容 为了解决上述技术问题， 本发明铜包铝母线的制作方法， 目的是将两种确 定的导电金属， 铜和铝的优点结合在一种导体中， 在无损于可靠性的情况下提 供了超越纯铜的既经济， 重量又轻的导体。 本发明的另一目的是可使用在世界 一流电气设备中， 可替代纯铜母线： 低压配电、 配电盘、 电机控制中心、 仪表 板、 母线箱、 高架母线槽系统、 高压配电、 真空开关装置、 发电机组、 变压器、 整流器、 电机绕组， 熔断器和起重机供电系统中。
铜包铝母线的制作方法， 包括下述步骤： 母线毛坯的制作： 选择铜管和铝- 棒， 将铜管内孔和铝棒的外圆经过机械刷洗， 去掉氧化皮， 然后放入保护气氛 中待装配， 在保护气氛中将铝棒装入铜管中， 两端封口， 防止进入空气， 将封 好两端的物件放入加热炉中加温并防止氧化， 拉拔形成冶金结合； 压扁成形： 将制作好的母线毛坯经轧机， 轧成不同规格的铜包铝母线导体。 所述的母线毛坯的制作方法，· 包括下述步骤： a、 机械刷洗： 用钢刷把铝杆 的外表面和铜管的内表面在刷子高速旋转情况下把表面氧化皮刷磨掉， 其中铝 杆刷子 1/4圆周布置一把， 铜管内壁靠螺旋钢刷在铜管内滑动完成刷磨； b、 保 护气氛： 可为氩气， 把刷磨完的铝杆和铜管在装置前放置在由氩气填充的存放 确 箱内以免氧化； C、 铝杆装入铜管内是推入方法， 即铜管和铝杆是间隙配合， 稍 用力即可推入； d、 在铜管的两端加端盖， 用氩弧焊悍牢； e、 加温温度是 600 °C-660°C ; f 、 拉拔形成冶金结合和要求外径。
所述孔形轧机的轧滚是单架或多架， 通过每架轧滚均完成一定的压扁量； 所述铜包铝母线的密度 3. 63克 /cm3; 抗拉强度〉 130Mpa; 直流电阻在 20°C 时为 0. 0265 Ω匪 2 /m; 铜包铝母线成品断面可达宽 100腿，厚 10瞧。
制作原理： 用固体加温压接成形法， 通过加热加压塑性变形， 使两种金属 结合面接近到原子距离。 形成大量的结合点， 经过扩散热处理， 最终形成界面 的牢固结合。
本发明的优点效果： 铜包铝母线将两种确定的导电金属， 铜和铝的优点结 合于一种导体中， 在无损于可靠性的情况下提供了超越纯铜的既经济， 重量又 轻的导体。 铜包铝母线与纯铜母线相比在材料和人工成本上节约相当可观， 成 本最小， 可节约 30%至 50%， 可节约大量铜资源， 是环保产品。 铜包铝母线密度 为 3. 63克 1113， 纯铜母线密度为 8. 9克 /cm3， 相差 2. 47倍， 相同重量、 相同宽 度的母线， 铜包铝母线比纯铜母线长 2. 47倍。 铜包铝母线的应用范围广： 可使 用在世界一流电气设备中， 可替代纯铜母线： 低压配电、 配电盘、 电机控制中 心、 仪表板、 母线箱、 高架母线槽系统、 高压配电、 真空开关装置、 发电机组、 变压器、 整流器、 电机绕组， 熔断器和起重机供电系统中。
具体实施方式
实施例 1：
铜包铝母线的制作方法， 包括两个步骤： 母线毛坯的制作： 选择铜管外径 在 20-70皿和相应尺寸的铝棒， 将铜管内孔和铝棒的外圆经过机械刷洗， 去掉 氧化皮， 然后放入保护气氛中待装配， 在保护气氛中将铝棒装入铜管中， 同时 两端封口， 防止进入空气， 将封好两端的物件放入加热炉中加温并防止氧化， 拉拔形成冶金结合； 取出物件后立即加压， 可促进结合； 压扁成形： 将制作好 的母线毛坯经孔型轧机， 轧成不同规格的铜包铝母线导体。
^中母线毛坯的制作方法， 包括下述步骤： a、 机械刷洗： 即用钢刷把铝杆 外表面和铜管的内表面在刷子高速旋转的情况下把表面氧化皮刷磨掉， 其中铝 杆刷子 1/4圆周布置一把， 铜管内壁靠螺旋钢刷在铜管内滑动完成刷磨； b、 保 护气氛： 可为氩气， 把刷磨完的铝杆和铜管在装置前放置在由氩气填充的存放 箱内以免氧化； c、 铝杆装入铜管内是用专用的推入装置，即铜管和铝杆是滑动 配合， 稍用力即可推入； d、 在铜管的两端加端盖， 用氩弧悍悍牢； e、 加温温 度是 660°C ; f 、 拉拔形成冶金结合和要求外径。
孔形轧机的轧滚是单架或多架， 通过每架轧滚均完成一定的压扁量。
实施例 2:
实施例 1中加温温度为 600°C。
实施例 3:
实施例 1中加温温度为 640°C。

Claims

权利要求
1、 铜包铝母线的制作方法， 其特征在于包括下述步骤： 母线毛坯的制作： 选择铜管和铝棒， 将铜管内孔和铝棒的外圆经过机械刷洗， 去掉氧化皮， 然后 放入保护气氛中待装配， 在保护气氛中将铝棒装入铜管中， 两端封口， 防止进 入空气， 将封好两端的物件放入加热炉中加温并防止氧化， 拉拔形成冶金结合; 压扁成形： 将制作好的母线毛坯经轧机， 轧成不同规格的铜包铝母线导体。
2、 根据权利要求 1所述的铜包铝母线的制作方法， 其特征在于母线毛坯的 制作包括下述步骤：
a、 机械刷洗： 即用钢刷把铝杆的外表面和铜管的内表面在刷子高速旋转的 情况下把表面氧化皮刷磨掉， 其中铝杆刷子 1/4 圆周布置一把， 铜管内壁靠螺 旋钢刷在铜管内滑动完成刷磨；
b、 保护气氛： 即氩气， 把刷磨完的铝杆和铜管在装置前放置在由氩气填充 的存放箱内以免氧化；
c、 铝杆装入铜管内是用专用的推入装置，即铜管和铝杆是滑动配合， 稍用 力即可推入；
d、 在铜管的两端加端盖， 用氩弧悍焊牢；
e、 加温温度是 660°C—600°C ;
f 、 拉拔形成冶金结合和要求外径。
3、 根据权利要求 1所述的铜包铝母线的制作方法， 其特征在于孔形轧机的 轧滚是单架或多架， 通过每架轧滚均完成一定的压扁量。
4、 根据权利要求 1所述的铜包铝母线的制作方法、 其特征在于铜包铝母线 的密度 3. 63克 /cm3; 抗拉强度 >130Mpa; 直流电阻在 20°C时为 0. 0265 Ω画 2 /m。
PCT/CN2005/000585 2005-04-28 2005-04-28 Procédé de fabrication d'une barre omnibus d’aluminium recouverte de cuivre WO2006114022A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/CN2005/000585 WO2006114022A1 (fr) 2005-04-28 2005-04-28 Procédé de fabrication d'une barre omnibus d’aluminium recouverte de cuivre
US11/568,874 US20110094099A1 (en) 2005-04-28 2005-04-28 Method for manufacturing copper clad aluminium bus bar
JP2007545813A JP4117340B2 (ja) 2005-04-28 2005-04-28 銅クラッドアルミ母線の製造方法
CNB2005800014569A CN100501879C (zh) 2005-04-28 2005-04-28 铜包铝母线的制作方法

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Application Number Priority Date Filing Date Title
PCT/CN2005/000585 WO2006114022A1 (fr) 2005-04-28 2005-04-28 Procédé de fabrication d'une barre omnibus d’aluminium recouverte de cuivre

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US (1) US20110094099A1 (zh)
JP (1) JP4117340B2 (zh)
CN (1) CN100501879C (zh)
WO (1) WO2006114022A1 (zh)

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