CN203288268U - Copper aluminum alloy composite bar - Google Patents
Copper aluminum alloy composite bar Download PDFInfo
- Publication number
- CN203288268U CN203288268U CN2013201821957U CN201320182195U CN203288268U CN 203288268 U CN203288268 U CN 203288268U CN 2013201821957 U CN2013201821957 U CN 2013201821957U CN 201320182195 U CN201320182195 U CN 201320182195U CN 203288268 U CN203288268 U CN 203288268U
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- copper
- aluminum alloy
- composite bar
- bar
- inner core
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Abstract
The utility model relates to the field of power transmission and transformation equipment, and especially relates to a copper aluminum alloy composite bar which serves as a current-carrying conductor. The purpose is that based on the characteristics of copper and aluminum alloy and utilizing specific processes to enable the copper and the aluminum alloy to fuse or diffuse mutually, compact metallurgical bonding is formed and a bimetal composite conductor is produced. In order to realize the purpose, the copper aluminum alloy composite bar is characterized in that: the copper aluminum alloy composite bar comprises an outer layer and an inner core, wherein the outer layer is copper material and the inner core is aluminum alloy material; and the outer layer sectional area accounts for 18%-22% of total sectional area of the outer layer and the inner core. The copper aluminum alloy composite bar replaces traditional pure copper busbar and aluminum busbar; the copper aluminum alloy composite bar combines the advantages of the aluminum alloy and the copper so that copper aluminum alloy composite bar is low in cost, light in weight, and has relatively-low contact resistance as the copper and the like; the current-carrying capacity of the composite bar is close to the pure copper bar and the bending property thereof is better than the copper bar; the tensile strength, elongation and hardness of the composite bar can meet the requirements of the whole set electrical equipment and the like products; comprehensive utilization of non-ferrous metal resources is improved; performance of the product is improved; and cost of the product is reduced.
Description
Technical field:
The utility model is involved in the power transmission and transforming equipment field, particularly a kind of composite bar of albronze as current－carrying conductor.
Background technology:
Copper is rare mondial reserves, and China is again that a poor copper is national, and the copper resource is very deficient, and copper is the grand strategy goods and materials of country.The power industry copper consumption of China is own at present surpasses more than 200 ten thousand tons, becomes the country of the first in the world with copper.Along with the development of China's economic construction, the also corresponding fast developments of industrial system such as communication, the energy, traffic, electrical equipment and electronics.Use copper as the conductor high cost as these industrial products transmission of electric energy, be unfavorable for the saving copper resource, have a strong impact on national copper resource tense situation.Aluminium is also good electric conductor, and it is low to enrich price China's reserves.From last century the seventies, be exactly an important economic policy for copper in China with aluminium, but because of the aluminium conductance lower, mechanical strength is low, poor rigidity, and welding performance is poor, contact resistance is large, and very easily oxidation in air, generate the pellumina with insulating property (properties), cause resistance to increase, ampacity reduces, be prone to fault in junction, have some technical barriers in use, therefore consumption is less for a long time.Therefore the utility model adopts aluminum alloy materials and two kinds of metals of copper formation mutually merge or spread, and forms metallurgical binding closely, becomes bimetallic composite conductor.
Summary of the invention:
The purpose of this utility model is to overcome the defect of prior art and a kind of albronze composite bar is provided, characteristic according to copper and aluminium alloy, adopting specific technique to make between the interface of two kinds of metals of albronze merges or diffusion mutually, form metallurgical binding closely, become bimetallic composite conductor, this albronze composite bar takes full advantage of copper, aluminium, alloy material advantage separately, and its ampacity is arranged close to fine copper simultaneously, and bending property is better than fine copper row.
The purpose of this utility model is achieved in that a kind of albronze composite bar, comprises skin and inner core, and described skin is copper product, and described inner core is aluminum alloy materials, and described outer field sectional area accounts for the 18%-22% of the total sectional area of described skin and inner core.
Described skin closely, evenly, be coated on inner core continuously, and forms metallurgical binding with inner core, and is seamless between skin; The copper layer thickness of albronze composite bar should be even, permissible variation be copper layer average thickness ± 10%.
Described albronze composite bar be shaped as round.
Described inner core adopts aluminum alloy materials, and the performances such as its conductance, mechanical strength, rigidity, welding performance, contact resistance, degree of adhesion are better than fine aluminium, and performance approaches and copper, with copper, forms and organically combines.
The utility model copper aluminium composite bar has replaced traditional copper busbar and aluminium busbar, the cost that it has aluminium, alloy concurrently is low, lightweight, the same with copper the lower characteristics such as contact resistance, and due to skin effect to affect current capacity large,, near electrician's fine copper row, be the optimal selection that substitutes electrician's fine copper row.The volume ratio that accounts for due to copper in the albronze composite bar is very little, can save in a large number rare copper resource, and proportion is little, can alleviate the weight of assembled electric equipment, reduces the caused bending stress of own wt, and is easy for installation.Its ampacity is arranged close to fine copper, and bending property is better than copper bar, and its tensile strength, elongation, hardness all can meet the requirement of the products such as assembled electric equipment, has improved the comprehensive utilization of nonferrous metal resource, has improved the performance of product, has reduced the cost of product.
Description of drawings:
Fig. 1 is the utility model schematic cross-section.
Embodiment:
A kind of albronze composite bar, comprise outer 1 and inner core 2, and described outer 1 is copper product, and described inner core 2 is aluminum alloy materials, and described outer 1 sectional area accounts for described outer 1 and the 18%-22% of the total sectional area of inner core; Outer 1 is coated on inner core 2 closely, evenly, continuously, and with inner core 2, forms metallurgical binding, seamless between outer 1; The copper layer thickness of albronze composite bar should be even, permissible variation be copper layer average thickness ± 10%; The albronze composite bar is round.
The utility model albronze composite bar prepares by following steps:
1) aluminum alloy melting is incubated to 700-800 ℃, is cast in copper pipe cooling formation albronze composite ingot by airtight chute;
2) under inert gas shielding, the albronze composite ingot after heating is rolled,, through breaking down, finish rolling and integer, make the albronze composite bar.
The density of albronze composite bar is 3.94g/cm3, and its permissible variation is ± 3.2%;
The albronze composite bar is in the range of temperature of-40 ℃-+110 ℃;
The tensile strength of albronze composite bar and percentage elongation should meet the regulation of table 1
The tensile strength of table 1 albronze composite bar and percentage elongation table
The copper layer of albronze composite bar and aluminium alloy core should closely form metallurgical binding, and be seamless between albronze.The shear strength of albronze interface combination should be not less than 35Mpa.
Dc resistivity and the conductance regulation that should meet table 2 of albronze composite bar in the time of 20 ℃.
The dc resistivity table of table 2 albronze composite bar
Above-mentioned albronze composite bar has been carried out performance test, and the direct current pressure decline method is adopted in the temperature rise experiment, according to national standard, carries out.Measuring current is 630A, power frequency 50Hz.Test result is: performance meets the demands.Mechanical endurance, the mechanically actuated operation of test was carried out according to Shanghai City company standard Q/JDAC-2010, and 6 times per minute of experimental implementation frequency, done three cyclic tests, master switch number of times 2000 times.Test result is: performance meets the demands.
The DC decompression method is adopted in the major loop resistance measurement, and measuring current is iOOA.Loop resistance meets the company standard regulation.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (3)
1. an albronze composite bar, comprise skin and inner core, it is characterized in that, described skin is copper product, and described inner core is aluminum alloy materials, and described outer field sectional area accounts for the 18%-22% of the total sectional area of described skin and inner core.
2. albronze composite bar according to claim 1, is characterized in that, described skin closely, evenly, be coated on inner core continuously, and forms metallurgical binding with inner core, and is seamless between skin.
3. albronze composite bar according to claim 1, is characterized in that, described albronze composite bar is round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201821957U CN203288268U (en) | 2013-04-12 | 2013-04-12 | Copper aluminum alloy composite bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201821957U CN203288268U (en) | 2013-04-12 | 2013-04-12 | Copper aluminum alloy composite bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203288268U true CN203288268U (en) | 2013-11-13 |
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ID=49544621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201821957U Expired - Fee Related CN203288268U (en) | 2013-04-12 | 2013-04-12 | Copper aluminum alloy composite bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203288268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321710A (en) * | 2014-06-30 | 2016-02-10 | 现代摩比斯株式会社 | Clad metal bus bar for film capacitor and film capacitor comprising the same |
| CN107971340A (en) * | 2017-09-26 | 2018-05-01 | 缪彬彬 | A kind of copper-aluminum composite board |
-
2013
- 2013-04-12 CN CN2013201821957U patent/CN203288268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321710A (en) * | 2014-06-30 | 2016-02-10 | 现代摩比斯株式会社 | Clad metal bus bar for film capacitor and film capacitor comprising the same |
| CN105321710B (en) * | 2014-06-30 | 2018-01-30 | 现代摩比斯株式会社 | Thin film capacitor clad metal sheet bus-bar and the thin film capacitor containing this |
| CN107971340A (en) * | 2017-09-26 | 2018-05-01 | 缪彬彬 | A kind of copper-aluminum composite board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20180412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |