CN201936654U - Novel enameled CCA wire - Google Patents
Novel enameled CCA wire Download PDFInfo
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- CN201936654U CN201936654U CN2011200774555U CN201120077455U CN201936654U CN 201936654 U CN201936654 U CN 201936654U CN 2011200774555 U CN2011200774555 U CN 2011200774555U CN 201120077455 U CN201120077455 U CN 201120077455U CN 201936654 U CN201936654 U CN 201936654U
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- copper
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Abstract
The utility model discloses a novel enameled CCA (Copper Clad Aluminum) wire. The novel enameled CCA wire is provided with a wire-drawing aluminium core with a copper protective layer coated outside, and a copper aluminium eutectic alloy layer is arranged between the wire-drawing aluminium core and the copper protective layer. The novel enameled CCA wire is stable in flexibleness, ductility, tensile property and conductibility.
Description
Technical field
The utility model relates to a kind of enamelled wire that improves performance.
Background technology
The price of existing copper is at 60000-70000 unit/ton, the price of aluminium has only about 20000 yuan/ton, the density of copper is 8.89 * 103Kg/m3, the density of aluminium is 2.7 * 103Kg/m3, for equivalents, uses the cost of aluminium only to use 15% of original cost, can economical with materials 75%, along with rising violently of the cost of raw material (copper), copper-in-aluminum enameled wire is more and more favored as a kind of novel electromagnetic wire, makes it become the first-selection that substitutes enamel covered wire.
The utility model content
The utility model purpose has provided the comparatively stable copper-in-aluminum enameled wire of a kind of flexibility, ductility and pull resistance, conductivity.
A kind of novel cuprum-cladding-aluminium enamelled wire of the present utility model has a wire drawing aluminium core, is coated with the layer of copper protective layer in described wire drawing aluminium core outside, also is provided with the layer of copper aluminium alloy layer between described wire drawing aluminium core and copper protective layer.Further, described albronze layer is a copper aluminium eutectic alloy-layer.
Described novel cuprum-cladding-aluminium enamelled wire combines the good electric conductivity of copper and the lightweight advantage of aluminium, copper cover aluminum can form the thick copper aluminium eutectic alloy-layer of pact＜0.01mm in drawing process, because alloy-layer, copper and aluminium crystallization temperature separately are all inequality, so flexibility, ductility and pull resistance between the three of annealing back are all inequality.Production process need select a rational production technology to make three's flexibility and tensile property reach best.
Selecting for use copper-in-aluminum enameled wire to also have an important reasons as the substitute of enamel covered wire, is exactly copper cover aluminum electric conductivity preferably, utilizes the skin effect of metallic conductor, promptly utilizes the excellent conducting performance of surface metal copper.
Core technology of the present utility model is as follows:
Utilize the physical characteristic difference under different temperatures of copper, aluminium and albronze thereof, property differences such as the flexibility of test different annealing temperature copper, aluminium and albronze thereof, ductility, pull resistance, select copper, aluminium and albronze thereof effective annealing temperature space and annealing process, by screening, select to be applicable to copper, aluminium and albronze three's thereof annealing temperature and annealing process to above data.
According to the skin benefit that becomes in the physics, alternating current mainly concentrates on the conductive surface and flows, electric conductivity in order to ensure copper-in-aluminum enameled wire is stable, just must determine the thickness of conductive surface copper, can form the layer of copper aluminium alloy layer in wire drawing and annealing operation, this alloy layer thickness can influence the conductivity of copper cover aluminum, the conductivity of test different Cu layer thickness copper cover aluminum, do the linear graph of copper layer thickness and conductivity, calculate the minimum thickness of required copper layer.
Advantage of the present utility model is as follows:
1. compare with the annealing temperature of in the past use enamel covered wire, the annealing region of copper cover aluminum is narrower, the annealing process difference, and the flexibility of the product of production, ductility, pull resistance all are in preferable states.
2. by can more scientifically control the thickness of copper-clad aluminum bronze layer to the reckoning of the linear graph of copper layer thickness and conductivity, make volume ratio suitable and guarantee not have lamination between copper layer and aluminium core.As seen these properties of product are very outstanding.
Description of drawings
Fig. 1 is the novel cuprum-cladding-aluminium enamelled wire structural representation that the utility model embodiment provides.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1; a kind of novel cuprum-cladding-aluminium enamelled wire that the utility model embodiment provides; have a wire drawing aluminium core 1, be coated with layer of copper protective layer 3, between described wire drawing aluminium core and copper protective layer, also be provided with layer of copper aluminium alloy layer 2 in described wire drawing aluminium core outside.Further, described albronze layer is a copper aluminium eutectic alloy-layer.
Described novel cuprum-cladding-aluminium enamelled wire combines the good electric conductivity of copper and the lightweight advantage of aluminium, copper cover aluminum can form the thick copper aluminium eutectic alloy-layer of pact＜0.01mm in drawing process, because alloy-layer, copper and aluminium crystallization temperature separately are all inequality, so flexibility, ductility and pull resistance between the three of annealing back are all inequality.Production process need select a rational production technology to make three's flexibility and tensile property reach best.
Selecting for use copper-in-aluminum enameled wire to also have an important reasons as the substitute of enamel covered wire, is exactly copper cover aluminum electric conductivity preferably, utilizes the skin effect of metallic conductor, promptly utilizes the excellent conducting performance of surface metal copper.
Research and development method and technology path:
1, new annealing process of debugging is selected a best pull resistance production technology.
2, the thickness of copper test is to the influence of electric conductivity.According to the skin benefit that becomes in the physics, alternating current is not evenly to distribute according to sectional area in conductor inside, flow but concentrate on the conductive surface, the copper cover aluminum surface all is a fine copper, so the purpose of our test is exactly the influence of whole copper cover aluminum being conducted electricity for the copper of testing different-thickness, seek a rational fine copper thickness again, guarantee the conductive stability of copper-in-aluminum enameled wire.
Claims (2)
1. a novel cuprum-cladding-aluminium enamelled wire is characterized in that, has a wire drawing aluminium core, is coated with the layer of copper protective layer in described wire drawing aluminium core outside, also is provided with the layer of copper aluminium alloy layer between described wire drawing aluminium core and copper protective layer.
2. according to the described novel cuprum-cladding-aluminium enamelled wire of claim 1, it is characterized in that described albronze layer is a copper aluminium eutectic alloy-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200774555U CN201936654U (en) | 2011-03-21 | 2011-03-21 | Novel enameled CCA wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200774555U CN201936654U (en) | 2011-03-21 | 2011-03-21 | Novel enameled CCA wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936654U true CN201936654U (en) | 2011-08-17 |
Family
ID=44448170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200774555U Expired - Fee Related CN201936654U (en) | 2011-03-21 | 2011-03-21 | Novel enameled CCA wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201936654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903671A (en) * | 2014-03-28 | 2014-07-02 | 谢国锋 | Copper-clad aluminum cable and manufacturing method thereof |
| CN114301205A (en) * | 2021-12-31 | 2022-04-08 | 江苏中车电机有限公司 | Novel composite material conductor coil for motor |
-
2011
- 2011-03-21 CN CN2011200774555U patent/CN201936654U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903671A (en) * | 2014-03-28 | 2014-07-02 | 谢国锋 | Copper-clad aluminum cable and manufacturing method thereof |
| CN103903671B (en) * | 2014-03-28 | 2015-02-18 | 张家港市广川电子有限公司 | Copper-clad aluminum cable and manufacturing method thereof |
| CN114301205A (en) * | 2021-12-31 | 2022-04-08 | 江苏中车电机有限公司 | Novel composite material conductor coil for motor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20160321 |