CN105441731A - Al-La-Fe-B alloy wire and preparation method thereof - Google Patents
Al-La-Fe-B alloy wire and preparation method thereof Download PDFInfo
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- CN105441731A CN105441731A CN201510877114.9A CN201510877114A CN105441731A CN 105441731 A CN105441731 A CN 105441731A CN 201510877114 A CN201510877114 A CN 201510877114A CN 105441731 A CN105441731 A CN 105441731A
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Abstract
The invention discloses an Al-La-Fe-B alloy wire and a preparation method thereof. The Al-La-Fe-B alloy wire is prepared from, by mass, 0.05%-0.50% of La, 0.5%-1.5% of Fe, 0.005%-0.010% of B, 0.03%-0.05% of Mo, 0.02%-0.05% of Si, 0.1%-0.2% of Ru and the balance Al and inevitable impurities. The rare earth element La is added, the performance of other alloy elements is coordinated, so that on the premise that the alloy wire has high electric conductivity, the mechanical performance and corrosion resistance of the alloy wire are optimized to a large degree, and the requirement for long-span electric transmission lines can be met.
Description
Technical field
The invention belongs to alloy lead wire preparing technical field, be specifically related to a kind of Al-La-Fe-B alloy lead wire and preparation method thereof.
Background technology
Along with the high speed development of Chinese national economy, the construction of power industry presents the trend of advancing by leaps and bounds, in the long-span electric transmission line of building development and extending in high-pressure trend, high capacity, long distance ionization, only use that traditional wire can not meet transferring electricity from the west to the east, north and south supplies mutually, the strategic plan of national network and the demand of long-span electric transmission line.
In power industry, the transmission of wire has very large impact to power industry.The material of wire and structure determine resistance sizes and the specific conductivity of wire.Larger resistance and lower specific conductivity limit the application of wire in power industry, and resistance is excessive, have larger loss, waste the energy to a certain extent in power transmission.
In addition, in actual production, the erosion resistance of aluminium alloy conductor, tensile strength and electric conductivity are conflict bodies, want improving the tensile strength of aluminium conductor and under ensureing the prerequisite of qualified electric conductivity, obtain preferably corrosion resistance nature, higher requirement certainly will be had to the alloy species added and content.Therefore the more excellent coupling how obtaining mechanical property, corrosion resistance nature and conductivity is the main contents of this area research.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of Al-La-Fe-B alloy lead wire and preparation method thereof is provided.This Al-La-Fe-B alloy lead wire is by adding rare-earth elements of lanthanum, coordinate the performance of other alloying elements, make this alloy lead wire under the prerequisite with higher electric conductivity, the mechanical property optimizing alloy lead wire of high degree and corrosion resistance nature, the demand of long-span electric transmission line can be met.
To achieve these goals, present invention employs following technical scheme:
A kind of Al-La-Fe-B alloy lead wire, by mass percentage containing, for example lower element: 0.05% ~ 0.50%La, 0.5% ~ 1.5%Fe, 0.005% ~ 0.010%B, 0.03% ~ 0.05%Mo, 0.02% ~ 0.05%Si, 0.1% ~ 0.2%Ru, surplus is Al and inevitable impurity.
Further preferred technical scheme of the present invention: described Al-La-Fe-B alloy lead wire by mass percentage containing, for example under: 0.20% ~ 0.50%La, 1.0% ~ 1.5%Fe, 0.005% ~ 0.010%B, 0.03% ~ 0.04%Mo, 0.02% ~ 0.04%Si, 0.1% ~ 0.2%Ru, surplus is Al and inevitable impurity.
Further preferred technical scheme of the present invention: described Al-La-Fe-B alloy lead wire by mass percentage containing, for example under: 0.30%La, 1.5%Fe, 0.008%B, 0.04%Mo, 0.03%Si, 0.15%Ru, surplus is Al and inevitable impurity.
Prepare a method for above-mentioned Al-La-Fe-B alloy lead wire, comprise the following steps:
Step one, according to the mass percent of each element in alloy lead wire finished product, takes simple substance or the compound of each element respectively;
Step 2, after 99.7% technical pure aluminium ingot being put into medium-frequency induction furnace fusing, first addition element La, Fe, B, insulated and stirred, after stirring, then addition element Mo, Si, Ru, insulated and stirred, the removal of impurity, refining, degasification, slagging-off, leave standstill more than 30 minutes, temperature controls between 750 DEG C ~ 800 DEG C; Period is analyzed composition in stove and adjusts;
Step 3, use continuous caster continuous casting, continuous casting becomes aluminium alloy cast ingot; Make aluminium alloy rod by extrusion machine 420 DEG C ~ 450 DEG C hot extrusions, carry out 60 minutes anneal at 400 DEG C, then on drawing machine, through the drawing of 7 ~ 9 passages, be prepared into the Al-La-Fe-B alloy lead wire of dimension.
Advantage of the present invention:
1. alloy lead wire of the present invention after measured, and its resistivity is 0.0025 Ω mm
2/ m ~ 0.0035 Ω mm
2/ m, can be widely used in power transmission, effectively reduces the loss of electric power resource.
2. alloy lead wire of the present invention is by adding and controlling the content of the metallic elements such as the excellent Mo of electric conductivity, improves the electric conductivity of alloy lead wire; Add and the content of the elements such as Fe, B, Ru, Si of control mechanics performance and fine corrosion resistance, improve the physicochemical property of alloy lead wire; Coordinating the performance of each alloying element by adding rare-earth elements La, well improving the metallurgical structure of optimized alloy wire, making alloy lead wire of the present invention possess excellent conductivity, mechanical property and corrosion resistance nature simultaneously.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described, but protection scope of the present invention is not only confined to the concrete record of following examples.
Embodiment 1:
A kind of Al-La-Fe-B alloy lead wire, by mass percentage containing, for example lower element: 0.05%La, 0.5%Fe, 0.005%B, 0.03%Mo, 0.02%Si, 0.1%Ru, surplus is Al and inevitable impurity.
Prepare the method for the Al-La-Fe-B alloy lead wire of the present embodiment, comprise the following steps:
Step one, according to the mass percent of each element in alloy lead wire finished product, takes simple substance or the compound of each element respectively;
Step 2, after 99.7% technical pure aluminium ingot being put into medium-frequency induction furnace fusing, first addition element La, Fe, B, insulated and stirred, after stirring, then addition element Mo, Si, Ru, insulated and stirred, the removal of impurity, refining, degasification, slagging-off, leave standstill more than 30 minutes, temperature controls at 750 DEG C; Period is analyzed composition in stove and adjusts;
Step 3, use continuous caster continuous casting, continuous casting becomes aluminium alloy cast ingot; Make aluminium alloy rod by extrusion machine 420 DEG C of hot extrusions, carry out 60 minutes anneal at 400 DEG C, then on drawing machine, through the drawing of 7 passages, be prepared into the Al-La-Fe-B alloy lead wire of dimension.
Embodiment 2:
A kind of Al-La-Fe-B alloy lead wire, by mass percentage containing, for example lower element: 0.50%La, 1.5%Fe, 0.010%B, 0.05%Mo, 0.05%Si, 0.2%Ru, surplus is Al and inevitable impurity.
Prepare the method for the Al-La-Fe-B alloy lead wire of the present embodiment, comprise the following steps:
Step one, according to the mass percent of each element in alloy lead wire finished product, takes simple substance or the compound of each element respectively;
Step 2, after 99.7% technical pure aluminium ingot being put into medium-frequency induction furnace fusing, first addition element La, Fe, B, insulated and stirred, after stirring, then addition element Mo, Si, Ru, insulated and stirred, the removal of impurity, refining, degasification, slagging-off, leave standstill more than 30 minutes, temperature controls between 800 DEG C; Period is analyzed composition in stove and adjusts;
Step 3, use continuous caster continuous casting, continuous casting becomes aluminium alloy cast ingot; Make aluminium alloy rod by extrusion machine 450 DEG C of hot extrusions, carry out 60 minutes anneal at 400 DEG C, then on drawing machine, through the drawing of 9 passages, be prepared into the Al-La-Fe-B alloy lead wire of dimension.
Embodiment 3:
A kind of Al-La-Fe-B alloy lead wire, by mass percentage containing, for example lower element: 0.30%La, 1.5%Fe, 0.008%B, 0.04%Mo, 0.03%Si, 0.15%Ru, surplus is Al and inevitable impurity.
Prepare the method for the Al-La-Fe-B alloy lead wire of the present embodiment, comprise the following steps:
Step one, according to the mass percent of each element in alloy lead wire finished product, takes simple substance or the compound of each element respectively;
Step 2, after 99.7% technical pure aluminium ingot being put into medium-frequency induction furnace fusing, first addition element La, Fe, B, insulated and stirred, after stirring, then addition element Mo, Si, Ru, insulated and stirred, the removal of impurity, refining, degasification, slagging-off, leave standstill more than 30 minutes, temperature controls between 770 DEG C; Period is analyzed composition in stove and adjusts;
Step 3, use continuous caster continuous casting, continuous casting becomes aluminium alloy cast ingot; Make aluminium alloy rod by extrusion machine 440 DEG C of hot extrusions, carry out 60 minutes anneal at 400 DEG C, then on drawing machine, through the drawing of 8 passages, be prepared into the Al-La-Fe-B alloy lead wire of dimension.
Embodiment 4:
A kind of Al-La-Fe-B alloy lead wire, by mass percentage containing, for example lower element: 0.20%La, 1.0%Fe, 0.005%B, 0.03%Mo, 0.02%Si, 0.1%Ru, surplus is Al and inevitable impurity.
Prepare the method for the Al-La-Fe-B alloy lead wire of the present embodiment, comprise the following steps:
Step one, according to the mass percent of each element in alloy lead wire finished product, takes simple substance or the compound of each element respectively;
Step 2, after 99.7% technical pure aluminium ingot being put into medium-frequency induction furnace fusing, first addition element La, Fe, B, insulated and stirred, after stirring, then addition element Mo, Si, Ru, insulated and stirred, the removal of impurity, refining, degasification, slagging-off, leave standstill more than 30 minutes, temperature controls between 750 DEG C; Period is analyzed composition in stove and adjusts;
Step 3, use continuous caster continuous casting, continuous casting becomes aluminium alloy cast ingot; Make aluminium alloy rod by extrusion machine 420 DEG C of hot extrusions, carry out 60 minutes anneal at 400 DEG C, then on drawing machine, through the drawing of 7 passages, be prepared into the Al-La-Fe-B alloy lead wire of dimension.
Embodiment 5:
A kind of Al-La-Fe-B alloy lead wire, by mass percentage containing, for example lower element: 0.50%La, 1.5%Fe, 0.010%B, 0.04%Mo, 0.04%Si, 0.2%Ru, surplus is Al and inevitable impurity.
Prepare the method for the Al-La-Fe-B alloy lead wire of the present embodiment, comprise the following steps:
Step one, according to the mass percent of each element in alloy lead wire finished product, takes simple substance or the compound of each element respectively;
Step 2, after 99.7% technical pure aluminium ingot being put into medium-frequency induction furnace fusing, first addition element La, Fe, B, insulated and stirred, after stirring, then addition element Mo, Si, Ru, insulated and stirred, the removal of impurity, refining, degasification, slagging-off, leave standstill more than 30 minutes, temperature controls between 760 DEG C; Period is analyzed composition in stove and adjusts;
Step 3, use continuous caster continuous casting, continuous casting becomes aluminium alloy cast ingot; Make aluminium alloy rod by extrusion machine 430 DEG C of hot extrusions, carry out 60 minutes anneal at 400 DEG C, then on drawing machine, through the drawing of 8 passages, be prepared into the Al-La-Fe-B alloy lead wire of dimension.
Claims (4)
1. an Al-La-Fe-B alloy lead wire, it is characterized in that: by mass percentage containing, for example lower element: 0.05% ~ 0.50%La, 0.5% ~ 1.5%Fe, 0.005% ~ 0.010%B, 0.03% ~ 0.05%Mo, 0.02% ~ 0.05%Si, 0.1% ~ 0.2%Ru, surplus is Al and inevitable impurity.
2. Al-La-Fe-B alloy lead wire according to claim 1, it is characterized in that: described Al-La-Fe-B alloy lead wire by mass percentage containing, for example under: 0.20% ~ 0.50%La, 1.0% ~ 1.5%Fe, 0.005% ~ 0.010%B, 0.03% ~ 0.04%Mo, 0.02% ~ 0.04%Si, 0.1% ~ 0.2%Ru, surplus is Al and inevitable impurity.
3. Al-La-Fe-B alloy lead wire according to claim 1, it is characterized in that: described Al-La-Fe-B alloy lead wire by mass percentage containing, for example under: 0.30%La, 1.5%Fe, 0.008%B, 0.04%Mo, 0.03%Si, 0.15%Ru, surplus is Al and inevitable impurity.
4. prepare as arbitrary in claim 1-3 as described in the method for Al-La-Fe-B alloy lead wire, it is characterized in that, comprise the following steps:
Step one, according to the mass percent of each element in alloy lead wire finished product, takes simple substance or the compound of each element respectively;
Step 2, after 99.7% technical pure aluminium ingot being put into medium-frequency induction furnace fusing, first addition element La, Fe, B, insulated and stirred, after stirring, then addition element Mo, Si, Ru, insulated and stirred, the removal of impurity, refining, degasification, slagging-off, leave standstill more than 30 minutes, temperature controls between 750 DEG C ~ 800 DEG C; Period is analyzed composition in stove and adjusts;
Step 3, use continuous caster continuous casting, continuous casting becomes aluminium alloy cast ingot; Make aluminium alloy rod by extrusion machine 420 DEG C ~ 450 DEG C hot extrusions, carry out 60 minutes anneal at 400 DEG C, then on drawing machine, through the drawing of 7 ~ 9 passages, be prepared into the Al-La-Fe-B alloy lead wire of dimension.
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| CN201510877114.9A CN105441731A (en) | 2015-12-03 | 2015-12-03 | Al-La-Fe-B alloy wire and preparation method thereof |
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Citations (6)
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|---|---|---|---|---|
| JPS57108238A (en) * | 1971-06-07 | 1982-07-06 | Southwire Co | Conductive aluminum alloy |
| CN101418401A (en) * | 2008-12-05 | 2009-04-29 | 北京工业大学 | Al-Er alloy conductor material and preparation method thereof |
| CN101948971A (en) * | 2010-09-16 | 2011-01-19 | 安徽亚南电缆厂 | Heat-resistant aluminum-alloy conductor material for cables and manufacture method thereof |
| CN101974709A (en) * | 2010-09-21 | 2011-02-16 | 安徽欣意电缆有限公司 | Super-soft aluminum alloy conductor and preparation method thereof |
| CN103103392A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Ag-RE aluminium alloy, preparation method thereof and power cable |
| CN104213003A (en) * | 2014-09-28 | 2014-12-17 | 国网河南省电力公司周口供电公司 | Medium-strength aluminum alloy monofilament with electric conductivity of 61% IACS and preparation method thereof |
-
2015
- 2015-12-03 CN CN201510877114.9A patent/CN105441731A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57108238A (en) * | 1971-06-07 | 1982-07-06 | Southwire Co | Conductive aluminum alloy |
| CN101418401A (en) * | 2008-12-05 | 2009-04-29 | 北京工业大学 | Al-Er alloy conductor material and preparation method thereof |
| CN101948971A (en) * | 2010-09-16 | 2011-01-19 | 安徽亚南电缆厂 | Heat-resistant aluminum-alloy conductor material for cables and manufacture method thereof |
| CN101974709A (en) * | 2010-09-21 | 2011-02-16 | 安徽欣意电缆有限公司 | Super-soft aluminum alloy conductor and preparation method thereof |
| CN103103392A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Ag-RE aluminium alloy, preparation method thereof and power cable |
| CN104213003A (en) * | 2014-09-28 | 2014-12-17 | 国网河南省电力公司周口供电公司 | Medium-strength aluminum alloy monofilament with electric conductivity of 61% IACS and preparation method thereof |
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