CN100501879C - 铜包铝母线的制作方法 - Google Patents

铜包铝母线的制作方法 Download PDF

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CN100501879C
CN100501879C CNB2005800014569A CN200580001456A CN100501879C CN 100501879 C CN100501879 C CN 100501879C CN B2005800014569 A CNB2005800014569 A CN B2005800014569A CN 200580001456 A CN200580001456 A CN 200580001456A CN 100501879 C CN100501879 C CN 100501879C
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copper
bus
bar
copper pipe
aluminium bar
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CN1930640A (zh
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杨喜山
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FUSHI INTERNATIONAL (DALIAN) BIMETALLIC CABLE Co Ltd
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    • 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

Abstract

铜包铝母线的制作方法，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；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。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。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/cm3，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。

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，用氩弧焊焊牢；e、加温温度是600℃--660℃；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℃时为0.0265Ωmm2/m；铜包铝母线成品断面可达宽100mm，厚10mm。
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/cm3，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20-70mm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。
其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，用氩弧焊焊牢；e、加温温度是660℃；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℃。
实施例3：
实施例1中加温温度为640℃。

Claims (3)

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，选择铜管和铝棒进行刷洗：
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作用下把表面的氧化皮刷磨掉，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在由氩气填充的存放箱内以免氧化；
c、在保护气氛中将铝杆装入铜管内，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、在铜管的两端加盖封口，防止空气进入，用氩弧焊焊牢；
e、将封好两端的物件放入加热炉中加温，并防止氧化，加温温度660°-600℃；
f、拉拔形成冶金结合和要求外径；
g、压扁成形：将制作好的母线毛坯经孔形轧机，轧成不同规格的铜包铝母线。
2、根据权利要求1所述的铜包铝母线的制作方法，其特征在于所述的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。
3、根据权利要求1所述的铜包铝母线的制作方法，其特征在于所述的铜包铝母线的密度3.63克/cm2；抗拉强度>130Mpa；直流电阻在20℃时，为0.0265Ωmm2/m。
CNB2005800014569A 2005-04-28 2005-04-28 铜包铝母线的制作方法 Expired - Fee Related CN100501879C (zh)

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CN106159638A (zh) * 2016-08-24 2016-11-23 威海迪赛尔电气工程有限公司 导体芯线去氧化层扫除装置

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CN106159638A (zh) * 2016-08-24 2016-11-23 威海迪赛尔电气工程有限公司 导体芯线去氧化层扫除装置

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