CN103255320A - Aluminum microalloy electric round bar - Google Patents
Aluminum microalloy electric round bar Download PDFInfo
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- CN103255320A CN103255320A CN2013101854512A CN201310185451A CN103255320A CN 103255320 A CN103255320 A CN 103255320A CN 2013101854512 A CN2013101854512 A CN 2013101854512A CN 201310185451 A CN201310185451 A CN 201310185451A CN 103255320 A CN103255320 A CN 103255320A
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Abstract
The invention relates to an aluminum microalloy electric round bar which takes industrial pure aluminum as a raw material and contains trace boron and rare earth elements. The aluminum microalloy electric round bar comprises the following components in percentage by weight: 0.01-0.05% of boron, 0.05-0.45% of titanium, 0.05-0.40% of cerium, 0.05-0.35% of lanthanum and the balance of pure aluminum and inevitable impurities. The aluminum microalloy electric round bar has high conductivity which can reach above 59% IACS, and can transfer electric energy efficiently with low consumption; the strength of extension of the electric round bar is improved; and the strength of a finished-product electric cable can reach above 200MPa, the electric cable does not contain precious metals, has lower production cost, and the production efficiency of the electric cable is greatly improved. The finished product of electric cable of the aluminum microalloy electric round bar can be used in electric transmission lines, especially in long-distance and long-span transmission and transformation projects in China.
Description
Technical field
The present invention relates to the aluminium microalloy electrician round bar that the aluminium conductor material is made, relate to boron, titanium and rare earth furthermore as the aluminium microalloy electrician round bar of microalloy composition.
Background technology
At present, the overhead transmission line of China's transmission of electricity is based on steel core aluminium alloy stranded conductor (its main model is LGJ series).LGJ series steel core aluminium alloy stranded conductor mainly adopts aluminium alloy electrician round bar to make.Electrician's round bar is formed through continuous casting and rolling by casting electrician aluminium ingot, and its quality quality directly has influence on the quality of follow-up finished product electric wire quality.Electrician's round bar main performance index comprises tensile strength and electric conductivity, produces in the process of round aluminum rod in continuous casting and rolling, and the control of these two indexs is seemed to be even more important.
Contradiction often between the tensile strength of electrician's aluminium round bar and the electric conductivity in actual production has improved the tensile strength of round bar, usually can cause the decline of electric conductivity, and when guaranteeing qualified electric conductivity, intensity can reduce again.Therefore how to obtain high electrical conductivity can and excellent mechanical performances to mate be the main contents of this area research.
Summary of the invention
The object of the present invention is to provide a kind of novel aluminum microalloy electrician round bar that had not only had high electrical conductivity but also the aluminium alloy conductor of higher-strength is arranged, its over-all properties is significantly improved, to overcome the deficiencies in the prior art.
The present invention is achieved in that with the commercial-purity aluminium to be raw material, adds trace B, titanium and rare earth element.
Above-mentioned rare earth element mainly is cerium and lanthanum.
The interpolation of above-mentioned boron and rare earth element is all added with the form of master alloy.
Aluminium microalloy electrician round bar in the component of massfraction is: 0.01～0.05% boron, 0.05～0.45% titanium, 0.05～0.40% cerium, 0.05～0.35% lanthanum, surplus is fine aluminium and unavoidable impurities.
Aluminium microalloy electrician round bar of the present invention is with conventional alloy smelting process manufacturing.
Aluminium microalloy electrician round bar of the present invention has following beneficial effect: the 1. electric conductivity height of electrician's round bar, can reach more than the 59%IACS, and can realize that efficient low-consume ground transmits electric energy; 2. the tensile strength of electrician's round bar improves, and the multicomponent alloy lead tensile strength of making can reach more than the 200MPa, can effectively reduce the scrap rate of finished product lead; 3. do not contain precious metals such as gold and silver, platinum and rhodium, added rare earth cerium and lanthanum price are relatively cheap and amount is few, about 300 yuan of cost of manufacture raising per ton, but improved production efficiency greatly.The finished product electric wire of this aluminium microalloy electrician round bar can be widely used in China's transmitting line, particularly in large span, the remote project of transmitting and converting electricity.
Embodiment
Embodiments of the invention: a kind of aluminium microalloy electrician round bar is to be raw material with the commercial-purity aluminium, adopts the manufacturing of conventional alloy smelting process method, adds trace B and rare earth element.Rare earth element mainly is cerium and lanthanum, and the interpolation of boron and rare earth element is all added with the form of master alloy.Its component in massfraction is: 0.04% boron, 0.25% titanium, 0.20% cerium, 0.30% lanthanum, surplus is fine aluminium and unavoidable impurities.
Claims (4)
1. aluminium microalloy electrician round bar is characterized in that: be raw material with the commercial-purity aluminium, add trace B, titanium and rare earth element, boron, titanium and rare earth element all add with the form of master alloy, make with conventional alloy melting method.
2. by the described aluminium microalloy of claim 1 electrician round bar, it is characterized in that: described rare earth element mainly is cerium and lanthanum.
3. by the described aluminium microalloy of claim 1 electrician round bar, it is characterized in that: the component in massfraction is: 0.01～0.05% boron, 0.05～0.45% titanium, 0.05～0.40% cerium, 0.05～0.35% lanthanum, surplus is fine aluminium and unavoidable impurities.
4. by the described aluminium microalloy of claim 1 electrician round bar, it is characterized in that: in the massfraction component be: 0.04% titanium, 0.02% cerium, 0.30% lanthanum, surplus is fine aluminium and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101854512A CN103255320A (en) | 2013-05-20 | 2013-05-20 | Aluminum microalloy electric round bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101854512A CN103255320A (en) | 2013-05-20 | 2013-05-20 | Aluminum microalloy electric round bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103255320A true CN103255320A (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101854512A Pending CN103255320A (en) | 2013-05-20 | 2013-05-20 | Aluminum microalloy electric round bar |
Country Status (1)
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| CN (1) | CN103255320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789586A (en) * | 2014-02-25 | 2014-05-14 | 贵州大学 | Novel moderate-strength high-conductivity aluminum alloy electrician round bar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616696A (en) * | 2004-12-03 | 2005-05-18 | 云南冶金集团总公司 | High conductivity aluminium base material containing rare-earth and boron and preparing method |
| CN101962723A (en) * | 2010-10-27 | 2011-02-02 | 江西南缆集团有限公司 | Aluminum alloy material for small-section wire rod and manufacturing method thereof |
-
2013
- 2013-05-20 CN CN2013101854512A patent/CN103255320A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616696A (en) * | 2004-12-03 | 2005-05-18 | 云南冶金集团总公司 | High conductivity aluminium base material containing rare-earth and boron and preparing method |
| CN101962723A (en) * | 2010-10-27 | 2011-02-02 | 江西南缆集团有限公司 | Aluminum alloy material for small-section wire rod and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789586A (en) * | 2014-02-25 | 2014-05-14 | 贵州大学 | Novel moderate-strength high-conductivity aluminum alloy electrician round bar |
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| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130821 |