CN101478092A - Conductive bar and manufacturing method thereof - Google Patents
Conductive bar and manufacturing method thereof Download PDFInfo
- Publication number
- CN101478092A CN101478092A CNA2008101072425A CN200810107242A CN101478092A CN 101478092 A CN101478092 A CN 101478092A CN A2008101072425 A CNA2008101072425 A CN A2008101072425A CN 200810107242 A CN200810107242 A CN 200810107242A CN 101478092 A CN101478092 A CN 101478092A
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- Prior art keywords
- busbar
- copper
- cross
- bar
- aluminium
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 73
- 229910052802 copper Inorganic materials 0.000 claims abstract description 73
- 239000010949 copper Substances 0.000 claims abstract description 73
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 37
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 239000004411 aluminium Substances 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 3
- 238000005282 brightening Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Abstract
The invention relates to a conductive bar and a manufacturing method thereof, wherein the conductive bar comprises an aluminum core and a copper layer coated on the outer side of the aluminum core, and the copper layer forms a closed circle on the outer side of the aluminum core. The cross section of the conductive bar is rectangular, and the cross section area of the copper layer accounts for 13-21% of the cross section area of the conductive bar. The copper-clad aluminum conducting bar can reach various parameter standards of the conducting bar, and the invention also provides a new conducting material which has the advantages of low price, light weight, convenient installation and transportation and environmental protection compared with a pure copper conducting bar with the same sectional area.
Description
Technical field
The invention belongs to for the distribution field.
Background technology
In the prior art, how the busbar that is used in the distribution field is made of pure copper material, it is big to utilize the controller switching equipment of fine copper busbar to have weight, be not easy to the shortcoming of installing and transporting, the more important thing is: the price of non-ferrous metal constantly skyrocketed on the international market in recent years, the price of copper is also constantly high, and this can increase the manufacturing cost of controller switching equipment undoubtedly, and people's sight begins to turn to the substitute of seeking the fine copper busbar.
Summary of the invention
The objective of the invention is to seek the substitute of fine copper busbar, provide a kind of performance and fine copper busbar difference little, and cheap busbar with and manufacture method.
The technical solution adopted in the present invention is: a kind of busbar, the copper layer that it comprises the aluminium core and is coated on the described aluminium core outside forms week of sealing in the described aluminium core outside at the above copper layer of the cross section of described busbar.
The cross section of described busbar is a rectangle, and the cross-sectional area of described copper layer accounts for the 13-21% of the cross-sectional area of described busbar; Preferred 15%.
The present invention adopts following manufacture method to make busbar, mainly comprises the steps:
1) selects soft attitude fine aluminium rod and soft attitude copper pipe, described aluminium bar and described copper pipe all are processed into the shape of cross section for ellipse;
2) oil stain and oxide skin are removed in aluminium bar outside and copper pipe inner face, described aluminium bar and described copper pipe are carried out suit, obtain the copper cover aluminum bar;
3) described copper cover aluminum bar is stretched, aluminium bar and outer field copper pipe inner face up to the center fit tightly no gap, obtain the busbar base substrate;
4) described busbar base substrate is heated to 350～450 ℃, and is incubated 1.5～2.5 hours;
5) described busbar base substrate is carried out single track or multiple tracks rolling, make the aluminium core that is positioned at internal layer and outer field copper layer form metallurgical binding, obtain the busbar that cross section is a rectangle, make the busbar semi-finished product;
6) carry out surface treatment, drawing, annealing in process is removed oxide skin, and the clad type copper cover aluminum busbar of surface-brightening is produced in finishing.
Further say, in described the 2nd step, the fit-up gap≤1mm of described aluminium bar and described copper pipe suit.
In described the 4th step, described copper-clad aluminum conductor is heated to 350～400 ℃, and is incubated 2 hours.
Clad type copper cover aluminum busbar by technique scheme is produced provides a kind of conduction new material, compares with the fine copper busbar of equal sectional area to have following advantage:
1, good electrical conductivity: copper layer volume ratio is the electric conductivity of 15% copper clad aluminum wire, and compare it to exchange ampacity be 85% of fine copper with copper bar, and its price is but cheap than fine copper busbar;
2, in light weight, be convenient to install, transportation, the density of copper clad aluminum wire only for fine copper arrange 37%-40%, the length of equivalent weight (volume) is 2.0～2.5 times of copper bar;
3, good mechanical performance: have good tensile strength, flexible and elongation;
4, firm metallurgical binding: reach metallurgical binding between permanent atom between two kinds of different metal materials;
5, good ductility and reliability: the Technology for Heating Processing through special, have certain plasticity, help punching, shearing, bending machining.
Description of drawings
Accompanying drawing 1 is the sectional view of busbar of the present invention;
Wherein: 1, aluminium core; 2, copper layer;
Specific embodiment
Shown in accompanying drawing, a kind of busbar, the copper layer 2 that it comprises aluminium core 1 and is coated on described aluminium core 1 outside, described copper layer 2 is coated on the outside of described aluminium core 1 entirely, on the cross section of busbar, form a week of sealing, and do not have seam on the described copper layer 2.
The cross section of described busbar is a rectangle, the cross-sectional area of described copper layer 2 accounts for the 13-21% of the cross-sectional area of described busbar, most preferred embodiment is 15%, experimental results show that copper layer volume ratio is the electric conductivity of 15% copper clad aluminum wire, compare it to exchange ampacity be 85% of fine copper with fine copper row, the density of copper clad aluminum wire only is fine copper row's 37%-40% simultaneously, and the copper clad aluminum wire of equivalent weight is 2.0-2.5 with fine copper row's length ratio.
A kind of method of making above-mentioned busbar comprises the steps:
1, selects fine aluminium rod and copper pipe, be heated to about 300 ℃, described aluminium bar and described copper pipe all are processed into cross section for oval shape, be beneficial to follow-up rolling mill practice to soft attitude;
2, oil stain and oxide skin are removed in aluminium bar outside and copper pipe inner face, described aluminium bar and described copper pipe are carried out suit, the fit-up gap≤1mm of suit obtains the copper cover aluminum bar;
3, described copper cover aluminum bar is stretched, aluminium bar and outer field copper pipe inner face up to the center fit tightly no gap, obtain the busbar base substrate;
4, described busbar base substrate is heated to 350～450 ℃, and is incubated 1.5～2.5 hours, in most preferred embodiment of the present invention, heating-up temperature is 380 ℃, is incubated 2 hours, eliminates the internal stress of described busbar base substrate;
5, described busbar base substrate is carried out single track or multiple tracks rolling, make the aluminium core and the outer field copper layer that are positioned at internal layer form metallurgical binding, here the rolling busbar base substrate is carried out plastic deformation under the roll spreading that milling train is rotating the pressure processing method that is meant, hot rolling or cold rolling mode all can, by rolling described busbar base substrate is rolled into the busbar semi-finished product that cross section is a rectangle;
6, the busbar semi-finished product are carried out surface treatment, drawing, annealing in process is removed oxide skin, and the clad type copper cover aluminum busbar of surface-brightening is produced in finishing.
Because above-mentioned copper cover aluminum busbar has certain plasticity through special Technology for Heating Processing, helps punching, shearing, bending machining; While also can be selectively zinc-plated or zinc-plated at the copper laminar surface in order to guarantee the corrosion resistance of copper cover aluminum busbar.
The present invention saves copper material, greatly reduces and produces supporting cost, and environmental protection does not have any pollution.
Claims (7)
1, a kind of busbar is characterized in that: the copper layer (2) that it comprises aluminium core (1) and is coated on described aluminium core (1) outside forms week of sealing in described aluminium core (1) outside at the above copper layer (2) of the cross section of described busbar.
2, busbar according to claim 1 is characterized in that: the cross section of described busbar is a rectangle, and the cross-sectional area of described copper layer (2) accounts for the 13-21% of the cross-sectional area of described busbar.
3, busbar according to claim 2 is characterized in that: the cross-sectional area of described copper layer (2) account for described busbar cross-sectional area 15%.
4, a kind of method of making busbar as claimed in claim 1 comprises the steps:
1) selects soft attitude fine aluminium rod and soft attitude copper pipe, described aluminium bar and described copper pipe all are processed into the shape of cross section for ellipse;
2) oil stain and oxide skin are removed in aluminium bar outside and copper pipe inner face, described aluminium bar and described copper pipe are carried out suit, obtain the copper cover aluminum bar;
3) described copper cover aluminum bar is stretched, aluminium bar and outer field copper pipe inner face up to the center fit tightly no gap, obtain the busbar base substrate;
4) described busbar base substrate is heated to 350～450 ℃, and is incubated 1.5～2.5 hours;
5) described busbar base substrate is carried out single track or multiple tracks rolling, make the aluminium core that is positioned at internal layer and outer field copper layer form metallurgical binding, obtain the busbar that cross section is a rectangle, make the busbar semi-finished product;
6) carry out surface treatment, drawing, annealing in process is removed oxide skin, and the clad type copper cover aluminum busbar of surface-brightening is produced in finishing.
5, the manufacture method of busbar according to claim 4 is characterized in that: in described the 2nd step, and the fit-up gap≤1m of described aluminium bar and described copper pipe suit.
6, the manufacture method of busbar according to claim 4 is characterized in that: in described the 4th step, described copper-clad aluminum conductor is heated to 350～400 ℃, and is incubated 2 hours.
7, the manufacture method of busbar according to claim 4 is characterized in that: in described the 6th step, described surface treatment is zinc-plated or zinc-plated processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101072425A CN101478092A (en) | 2008-09-28 | 2008-09-28 | Conductive bar and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101072425A CN101478092A (en) | 2008-09-28 | 2008-09-28 | Conductive bar and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101478092A true CN101478092A (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101072425A Pending CN101478092A (en) | 2008-09-28 | 2008-09-28 | Conductive bar and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN101478092A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682926A (en) * | 2012-05-30 | 2012-09-19 | 青岛圆鑫双金属有限公司 | Production technology of cooper clad aluminum row by using instant permanent bonding method |
| CN103010029A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive underpan and processing method thereof |
| CN103010030A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive body and processing method thereof |
| CN104733133A (en) * | 2015-03-14 | 2015-06-24 | 浙江海亮股份有限公司 | Manufacturing technology for copper-clad aluminum composite busbar |
| CN105938741A (en) * | 2016-05-24 | 2016-09-14 | 苏州创浩新材料科技有限公司 | Preparation technology of copper-zinc-aluminum three-layer composite conductive wire bank |
| CN106298080A (en) * | 2016-10-14 | 2017-01-04 | 国网辽宁省电力有限公司阜新供电公司 | A kind of production method of copper coated aluminum bus bank |
| CN108390004A (en) * | 2017-02-03 | 2018-08-10 | 大众汽车有限公司 | The component and method of electrical contact for single lattice module and the battery with such component |
| CN112122377A (en) * | 2020-08-05 | 2020-12-25 | 昆明理工大学 | Semi-solid forming method for copper-clad aluminum composite material |
-
2008
- 2008-09-28 CN CNA2008101072425A patent/CN101478092A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010029A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive underpan and processing method thereof |
| CN103010030A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive body and processing method thereof |
| CN102682926A (en) * | 2012-05-30 | 2012-09-19 | 青岛圆鑫双金属有限公司 | Production technology of cooper clad aluminum row by using instant permanent bonding method |
| CN104733133A (en) * | 2015-03-14 | 2015-06-24 | 浙江海亮股份有限公司 | Manufacturing technology for copper-clad aluminum composite busbar |
| CN105938741A (en) * | 2016-05-24 | 2016-09-14 | 苏州创浩新材料科技有限公司 | Preparation technology of copper-zinc-aluminum three-layer composite conductive wire bank |
| CN105938741B (en) * | 2016-05-24 | 2017-04-05 | 苏州创浩新材料科技有限公司 | A kind of preparation technology of three layers of composite guide electric wire row of copper zinc-aluminium |
| CN106298080A (en) * | 2016-10-14 | 2017-01-04 | 国网辽宁省电力有限公司阜新供电公司 | A kind of production method of copper coated aluminum bus bank |
| CN108390004A (en) * | 2017-02-03 | 2018-08-10 | 大众汽车有限公司 | The component and method of electrical contact for single lattice module and the battery with such component |
| CN108390004B (en) * | 2017-02-03 | 2022-02-11 | 大众汽车有限公司 | Assemblies and methods for electrical contacting of single cell modules and batteries with such assemblies |
| CN112122377A (en) * | 2020-08-05 | 2020-12-25 | 昆明理工大学 | Semi-solid forming method for copper-clad aluminum composite material |
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Open date: 20090708 |