CN101916925A - Wire clamp of copper-aluminum apparatus - Google Patents
Wire clamp of copper-aluminum apparatus Download PDFInfo
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- CN101916925A CN101916925A CN2010102243353A CN201010224335A CN101916925A CN 101916925 A CN101916925 A CN 101916925A CN 2010102243353 A CN2010102243353 A CN 2010102243353A CN 201010224335 A CN201010224335 A CN 201010224335A CN 101916925 A CN101916925 A CN 101916925A
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- copper
- aluminum
- wire
- wire clamp
- plate
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Abstract
The invention discloses a wire clamp of a copper-aluminum apparatus, which relates to the field of manufacturing technology of a wire clamp for fixing electric wires or for copper-aluminum transition in power transmission. The wire clamp comprises a wire pressing plate and a wire late; the wire pressing plate is connected to the upper surface of the wire plate through a bolt; the wire plate comprises an aluminum plate layer and a copper plate layer; and the copper plate layer is melted and compounded on the lower surface of the aluminum plate layer. The wire clamp of the copper-aluminum apparatus adopts the metal melt-casting technology to compound two different metal plates together, thoroughly solving the cracking problem of copper-aluminum welding; moreover, the thickness of the copper plate layer is reduced to 0.3-1 mm, so the using amount of the copper is greatly reduced that about 60-80% of the copper is relatively saved.
Description
Technical field
The present invention relates to be used for fixing in a kind of electric power transfer the manufacturing technology field of the wire clamp of electric wire and copper-aluminium transition.
Background technology
Copper and aluminium are the conductor materials of consumption maximum in the present electric field, in power engineering, being electrically connected of two kinds of materials of copper aluminium inevitably occur; As everyone knows; be in the primary cell of two kinds of metals formation that have different potentials in the electrolyte; it is the most typical form of couple corrosion; when especially both potential differences are greater than 0.75V; it is very active that couple corrosion becomes, and as adopting mechanical pressure (as bolt) two kinds of metals directly contacted, and will inevitably leave the gap on contact-making surface; when having electrolyte in the gap, primary cell inevitably forms.Simultaneously, the degradation speed of contact-making surface is further quickened in the corrosion that also can produce electrolysis of flowing of electric current.Therefore, in all kinds of relevant technical standards and the standard all with clear and definite regulation: the conductor of different materials must not directly be connected.
Existing wire clamp of copper-aluminum apparatus; usually adopt the welding of flash welding or friction welding (FW) fixing between its double layer of metal; because of the welding performance of copper aluminium (particularly aluminium) relatively poor; even if the welding of same material generally all will take corresponding householder method could obtain intensity preferably; need use welding powder as brazing; the aluminium weldering needs to adopt to isolate welds (as Buchholz protection); and the transition junction of wire clamp of copper-aluminum apparatus is the welding of two kinds of different metals; its manufacture is if adopt flash welding or friction welding; the intensity of its soldering opening can only reach the intensity level of the aluminium that intensity is minimum in two kinds of mother metals in the ideal case; owing to can not make the interface of two kinds of mother metals when welding, form " molten bath " fully and fully; the fusing point of aluminium is far below copper in addition; therefore its crystalline phase tissue does not reach mutually completely " fusion "; cause its microstructure inhomogeneous; wire clamp should bear wire tension when installing and work also will bear shearing; its connection area of the interface of flash welding or friction welding is less; its connection interface resistance is big; temperature rise is big; copper in addition; the thermal coefficient of expansion difference of aluminium; objectively can worsen the stress condition of interface; in addition; work moment acts on interface and causes stress to concentrate easily, thereby causes the fatigue fracture of wire clamp.
Summary of the invention
The present invention adopts the wire clamp of copper-aluminum apparatus that is welded to connect in order to solve, and occurs the problem of cracking easily, the invention provides a kind of wire clamp of copper-aluminum apparatus.
The present invention includes tension disc, line plate, described tension disc is connected by bolt on the upper surface of described line plate, and described line plate comprises aluminum layer, copper coin layer, and the fusion of described copper coin layer is compounded on the lower surface of described aluminum layer.
The present invention adopts the fusion foundry engieering of metal, the sheet material of two-layer different metal is combined with each other, has thoroughly solved the problem that copper and aluminium welding picks out existing cracking, the thickness with the copper coin layer is reduced to 0.3～1mm in addition, saved the consumption of copper greatly, it has saved the consumption of about 60～80% copper relatively.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Among the figure, 1, tension disc, 2, the line plate, 3, bolt, 4, aluminum layer, 5, the copper coin layer.
Embodiment
As shown in Figure 1, this wire clamp of copper-aluminum apparatus comprises tension disc 1, line plate 2, and tension disc 1 connects on the upper surface of online plate 2 by bolt 3, and line plate 2 comprises aluminum layer 4, copper coin layer 5, and 5 fusion of copper coin layer are compounded on the lower surface of aluminum layer 4.
Claims (1)
1. wire clamp of copper-aluminum apparatus comprises tension disc, line plate, and described tension disc is connected on the upper surface of described line plate by bolt, it is characterized in that described line plate comprises aluminum layer, copper coin layer, and the fusion of described copper coin layer is compounded on the lower surface of described aluminum layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102243353A CN101916925A (en) | 2010-07-06 | 2010-07-06 | Wire clamp of copper-aluminum apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102243353A CN101916925A (en) | 2010-07-06 | 2010-07-06 | Wire clamp of copper-aluminum apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101916925A true CN101916925A (en) | 2010-12-15 |
Family
ID=43324358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102243353A Pending CN101916925A (en) | 2010-07-06 | 2010-07-06 | Wire clamp of copper-aluminum apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101916925A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688997A (en) * | 2012-06-07 | 2012-09-26 | 上海华伦仪表电子有限公司 | Quick punching device and technology |
| CN102759645A (en) * | 2011-04-25 | 2012-10-31 | 湖北省电力公司随州供电公司 | Voltage wired copper-aluminum wiring clamp of electric meter provided with current transformer |
| CN103000085A (en) * | 2012-12-12 | 2013-03-27 | 夏邑县供电局 | Multi-purpose signboard of power line |
-
2010
- 2010-07-06 CN CN2010102243353A patent/CN101916925A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759645A (en) * | 2011-04-25 | 2012-10-31 | 湖北省电力公司随州供电公司 | Voltage wired copper-aluminum wiring clamp of electric meter provided with current transformer |
| CN102688997A (en) * | 2012-06-07 | 2012-09-26 | 上海华伦仪表电子有限公司 | Quick punching device and technology |
| CN102688997B (en) * | 2012-06-07 | 2015-04-15 | 上海华伦仪表电子有限公司 | Quick punching device and technology |
| CN103000085A (en) * | 2012-12-12 | 2013-03-27 | 夏邑县供电局 | Multi-purpose signboard of power line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101215 |
|
| WD01 | Invention patent application deemed withdrawn after publication |