CN109234553A - A kind of Al-Zr-Sc-B heat-resisting alloy monofilament and preparation method thereof - Google Patents

A kind of Al-Zr-Sc-B heat-resisting alloy monofilament and preparation method thereof Download PDF

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Publication number
CN109234553A
CN109234553A CN201811112206.8A CN201811112206A CN109234553A CN 109234553 A CN109234553 A CN 109234553A CN 201811112206 A CN201811112206 A CN 201811112206A CN 109234553 A CN109234553 A CN 109234553A
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alloy
heat
monofilament
aluminium
added
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Inventor
陈保安
祝志祥
张强
韩钰
陈新
潘学东
丁
丁一
葛维春
杨长龙
黄旭
张宏宇
李悦悦
陈川
刘昕
马光
聂京凯
程灵
王广克
赵蕊
王晓芳
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State Grid Corp of China SGCC
Global Energy Interconnection Research Institute
State Grid Liaoning Electric Power Co Ltd
Shenyang Power Supply Co of State Grid Liaoning Electric Power Co Ltd
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State Grid Corp of China SGCC
Global Energy Interconnection Research Institute
State Grid Liaoning Electric Power Co Ltd
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Priority to CN201811112206.8A priority Critical patent/CN109234553A/en
Publication of CN109234553A publication Critical patent/CN109234553A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making alloys
    • C22C1/02—Making alloys by melting
    • C22C1/026—Alloys based on aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making alloys
    • C22C1/02—Making alloys by melting
    • C22C1/03—Making alloys by melting using master alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making alloys
    • C22C1/06—Making alloys with the use of special agents for refining or deoxidising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

Abstract

The present invention provides a kind of Al-Zr-Sc-B heat-resisting alloy monofilament and preparation method thereof, alloy filaments are made of the alloying element of following weight percentage: B:0.01~0.02%, Zr:0.01~0.05%, Sc:0.05~0.2%, Si :≤0.08%, Fe :≤0.2%, (V+Ti+Cr+Mn)≤0.012%, surplus is aluminium and inevitable other impurity.The alloy also added trace rare-earth Sc element while adding Zr element and be modified to alloy and optimize and revise alloying element content, it ensure that alloy mechanical property, conductivity is improved, 2.5%, 230 DEG C of heat preservation 1h intensity survival rate >=93% of monofilament conductivity >=62%IACS, tensile strength >=170MPa, elongation percentage at 20 DEG C meets the requirement that longtime running temperature is 150 DEG C.

Description

A kind of Al-Zr-Sc-B heat-resisting alloy monofilament and preparation method thereof
Technical field
The invention belongs to transmission line of electricity aerial condutor manufacturing technology field, in particular to a kind of resistance to heat seal of Al-Zr-Sc-B Golden monofilament and preparation method thereof.
Background technique
The research and application of alloy material aerial condutor have the course into a century, since its intensity is high, light-weight, And having preferable electric conductivity, the nineteen twenty-one U.S. is begun to using aluminum alloy materials as conductor.
Requirement of the existing power grid construction to overhead power transmission conducting wire is higher and higher, remote, large capacity, large span novel Transmission line of electricity shows a increasing trend.The high-pressure trend of transmission line of electricity, remote and high capacity are to the heat resistance and intensity of transmission line of electricity Requirement it is higher and higher, in order to enable aluminum alloy to conducting wire, intensity is not reduced in During Process of Long-term Operation at the normal operating temperature, is not increased Add conducting wire sag, zirconium, titanium etc. are added usually in electrician's fine aluminium and improves the recrystallization temperature of aluminium to improve aluminium alloy conductor Heat resistance.But although the addition of zirconium, titanium alloy element ensure that heat resistance, can cause the reduction of aluminium alloy conductor conductivity.
Accordingly, it is desirable to provide a kind of can improve the conductivity of heat-resisting aluminium alloy while guaranteeing compared with high current-carrying capacity, reduce The alloy lead wire for line loss of transmitting electricity.
Summary of the invention
To overcome drawbacks described above of the existing technology, the present invention provides a kind of heat-resisting aluminium alloy monofilament and its preparation sides Method, the microstructure and comprehensive performance of alloy are improved by the micro Er of addition, B element, which is not less than 62% IACS (20 DEG C), tensile strength are not less than 170MPa, elongation percentage not less than 2.5%, long-term heat resisting temperature >=150 DEG C (230 DEG C of guarantors Warm 1h intensity survival rate >=93%).
For achieving the above object, the technical scheme adopted by the invention is as follows:
A kind of Al-Zr-Sc-B heat-resisting alloy monofilament, the alloy filaments by following weight percentage alloying element system At: B:0.01~0.02%, Zr:0.01~0.05%, Sc:0.05~0.2%, Si :≤0.08%, Fe :≤0.2%, (V+Ti + Cr+Mn)≤0.012%, surplus is aluminium and inevitable other impurity.
Preferably, the alloy filaments are made of the alloying element of following weight percentage: B:0.01%, Zr:0.01%, Sc:0.2%, Si:0.06%, Fe:0.2%, V+Ti+Cr+Mn0.01%, surplus are aluminium and inevitable impurity.
Preferably, the alloy filaments are made of the alloying element of following weight percentage: boron: 0.016%, zirconium Zr: 0.01%, scandium Sc:0.2%, silicon Si:0.008%, iron Fe:0.04%, vanadium V+ titanium Ti+ chromium Cr+ manganese Mn0.007%, surplus is aluminium With inevitable impurity.
Preferably, the alloy filaments are made of the alloying element of following weight percentage: B:0.012%, Zr: 0.05%, Sc:0.05%, Si:0.005%, Fe:0.2%, V+Ti+Cr+Mn0.01%, surplus be aluminium and inevitably it is miscellaneous Matter.
A method of the Al-Zr-Sc-B heat-resisting alloy monofilament as described in any of the above-described being prepared, the method includes as follows Step:
(1) at 730~750 DEG C, the alloying element is added into the aluminium ingot fusant of purity >=99.7%；
(2) under stirring in the fusant of step 1) 5~15min of nitrogen-blow at 710~730 DEG C, skim or be added C2Cl6, heat preservation stands 10~20min at 730~750 DEG C, skims；
The aluminium alloy for obtaining step 2) at (3) 700~720 DEG C pours into metal die；520~540 DEG C of tripping in are rolled, through 5 Passes at φ 9.5mm Aluminum alloy round bar；
(4) Aluminum alloy round bar wire drawing is made in step 4), obtains the monofilament of 3~4mm of Φ；
(5) monofilament made from step 5) is kept the temperature to 4~12h at 300~400 DEG C.
Preferably, the alloying element is added by following sequences in step 1):
Fine aluminium is added Al-B intermediate alloy after being completely melt and carries out borax treatment；
730~750 DEG C of addition Al-Zr, Al-Sc intermediate alloy fusings, 15~20min of 10~15min of stirring and standing.
Preferably, in the step 2) at 740 DEG C, deslagging agent is added in the ratio of molten aluminum quality 0.2%.
Preferably, nitrogen-blow and refining agent or C is added in the ratio of molten aluminum quality 0.5% in the step 2)2Cl6Spray It blows, is blown 5min, heat preservation stands 20min at 740 DEG C；
The refining agent includes potassium chloride 24 according to parts by weight；Sodium chloride 35；Calcirm-fluoride 14；Sodium carbonate 50；Sulfuric acid Sodium 15；Hexafluoro sodium aluminate 12 and carbon trichloride 6.
Preferably, the step 3) pours into metal die, and at 700 DEG C, the aluminium alloy that step 2) is obtained pours into crystallization In wheel continuous casting billet, at 555 DEG C, with the ejection speed ejection of 10m/min.
Preferably, the alloying element that the step 1) is added is intermediate alloy.
Boron: in numerous influence factors, chemical component is to influence the most basic factor of aluminium conductor conductivity, therefore drop Influence of the low impurity element to conductivity is the key that improve the act of aluminium conductor conductivity.If impurity element is deposited with solid solution condition The influence to electric conductivity is bigger.Borax treatment is a kind of effective ways for reducing impurity content, i.e., is added in aluminium alloy It after a certain amount of B element, can react, be allowed to by solid solution being changed into of state with Transition Group Impurities element Cr, Mn, V, Ti etc. It closes state and is deposited on melt bottom, to improve the electric conductivity of aluminium alloy.
Zirconium Zr: the addition of appropriate zirconium can be obviously improved the heat resistance of aluminium alloy, and this is mainly due to zirconium atom radius ratios Aluminium atom radius is bigger, and zirconium is diffused in aluminium with substitute mode, and diffusion activation energy is high, is precipitated to sub- crystal grain boundary Subtle Al3Zr phase, it is not easy agglomeration, and stability is high, can prevent the generation of recrystallization, can still have at a higher temperature The pinning dislocation and crystal boundary of effect hinder deformation and transgranular and Grain Boundary Sliding, are improved creep resistance, thus enable aluminum alloy to Heat resistance is improved.Zr can be reacted with Al, Sc after heat treatment generates Al3(Sc, Zr), so that it is comprehensive to improve alloy Energy.
Scandium Sc: rare earth Sc is added in the present invention can significantly improve the conductivity, intensity and heat resistance of aluminium alloy.Sc addition It can play the role of refining crystal grain；It is reacted by heat treatment Sc with Al, Zr and generates Al3(Sc, Zr) precipitated phase.
Silicon Si: silicon is one of the major impurity element in industrial aluminum, and Si can generate the second phase with element reactions such as Fe, Re, To improve the mechanical property of aluminium alloy.
Iron Fe: contain a certain amount of iron in aluminium, be one of industrial aluminum major impurity.Mechanical property of the iron to casting aluminium It is harmful, because it usually occurs with a coarse crystal, or exists in the form of aluminium-iron-silicon compound, their certain journeys The hardness of aluminium is all improved on degree, but reduces the plasticity of aluminium.Studies have shown that aluminium conductor intensity can be improved in iron, not significantly Reduce its electric conductivity.But also its resistivity can be made significantly to rise data show that in actual production, the Fe in aluminium conductor is excessively high Height, so it should also be noted that the content of control iron.
V, Mn, Cr, Ti: these types of element is the impurity element in alloy, is affected to the electric conductivity of aluminium alloy. The impurity elements such as Ti, V, Mn, Cr in aluminium conductor are in the presence of being dissolved state, it is easy to absorb the free electron in conductor material and Fill their incomplete electronic shell.The reduction of this conduction number of electrons results in the reduction of aluminium conductor electric conductivity.Study table Bright, the illeffects of every 1% (Cr+Ti+Mn+V) is every 1% silicon to 5 times of aluminium electric conductivity illeffects.It can be seen that tight The content that lattice control these types of element has important practical application meaning to the quality for guaranteeing aluminium conductor.
Compared with the latest prior art, technical solution provided by the invention has the advantage that as follows:
1, Al-Zr-Sc-B heat-resisting alloy monofilament provided by the invention also adds while adding Zr element in heat-resisting alloy Add trace rare-earth Sc element, refines crystal grain；Al is formed by heat treatment3(Sc, Zr) phase, the Al3(Sc, Zr) phase and matrix Coherence has core-shell structure, and Dispersed precipitate improves on the basis of guaranteeing alloy mechanical property and heat resistance in aluminum substrate Conductivity, monofilament conductivity >=62%IACS at 20 DEG C.
2, heat-resisting alloy monofilament provided by the invention controls impurity content in alloy, tensile strength >=170MPa.
3, heat-resisting alloy monofilament provided by the invention controls impurity content in alloy, elongation percentage >=2.5%.
4, heat-resisting alloy monofilament provided by the invention, controls impurity content in alloy, and 230 DEG C of heat preservation 1h intensity are remaining Rate >=93% meets the requirement that longtime running temperature is 150 DEG C.
5, heat-resisting alloy monofilament provided in the present invention optimizes the preparation process ginseng of continuous casting and rolling using continuous casting and rolling Number.
Specific embodiment
Below with reference to example, the present invention will be described in detail.
Embodiment 1
Alloy filaments are made of the alloying element of following weight percentage:
The preparation of alloy filaments includes the following steps:
1) it smelts: by purity 99.7%①Aluminium ingot it is molten after, at 730 DEG C of temperature②Lower addition Al-B intermediate alloy, it is completely molten 735 DEG C are warming up to after change③Al-Zr, Al-Sc intermediate alloy is added, stirs 10min after being completely melt④, heat preservation standing 15min⑤, Obtain molten aluminum；
2) it refines: stirring and in 730 DEG C⑥Under step 1) molten aluminum in molten aluminum quality 0.2% ratio be added slagging-off Agent, nitrogen-blow⑦Refining agent is added in the ratio of molten aluminum quality 0.5%, is blown 15min⑧, 730 DEG C⑨Lower heat preservation stands 20min⑩,
It skims；Refining agent is by sodium chloride, potassium chloride, potassium fluosilicate, cryolite, light sodium carbonate, calcirm-fluoride, hexachloroethanc Alkane, sodium sulphate, potassium fluoroaluminate and quartz sand composition；
3) continuous casting: 700 DEG CThe lower aluminum alloy melt for obtaining step 2) pours into and obtains continuous casting billet in crystallizing wheel, and 550 DEG CUnder With 10m/min speed ejection；Make 550 DEG C of temperature of continuous casting billet by adjusting to the size of slab amount of water sprayed
4) tandem rolling: the continuous casting billet feeding hot tandem that step 3) is obtained, 520 DEG CTripping in is rolled, through 5 passes at The Aluminum alloy round bar of φ 9.5mm；
5) wire drawing: Aluminum alloy round bar wire drawing is made in step 4), obtains Φ 4mmMonofilament, 400 DEG CLower heat preservation 4h
The alloy compositions of the embodiment of the present invention 2~9 of table 1 by mass percentage:
The process parameter table of 2 embodiment of the present invention 2~9 of table
Note:Meaning see embodiment 1
Filament properties table obtained by 3 embodiment of the present invention of table
As shown above, high conductivity and heat heat resistance monofilament elongation percentage >=2.5% provided by the invention is closed higher than existing high conductivity and heat heat resistance aluminium Golden monofilament 2%, conductivity >=62%IACS, while tensile strength >=170MPa, keep the temperature at 230 DEG C the intensity remnants rate of 1h >= 30%, this illustrates that high conductivity and heat heat resistance monofilament provided by the invention can satisfy the requirement run at 150 DEG C for a long time.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent Invention is explained in detail referring to above-described embodiment for pipe, it should be understood by those ordinary skilled in the art that: still It can be with modifications or equivalent substitutions are made to specific embodiments of the invention, and without departing from any of spirit and scope of the invention Modification or equivalent replacement, are intended to be within the scope of the claims of the invention.

Claims (10)

1. a kind of Al-Zr-Sc-B heat-resisting alloy monofilament, which is characterized in that the alloy filaments by following weight percentage conjunction Gold element is made: boron: 0.01~0.02%, zirconium Zr:0.01~0.05%, and scandium Sc:0.05~0.2%, silicon Si :≤0.08%, Iron Fe :≤0.2%, (vanadium V+ titanium Ti+ chromium Cr+ manganese Mn)≤0.012%, surplus is aluminium and inevitable other impurity.
2. a kind of Al-Zr-Sc-B heat-resisting alloy monofilament as described in claim 1, it is characterised in that: the alloy filaments are under The alloying element for stating weight percent is made: B:0.01%, Zr:0.01%, Sc:0.2%, Si:0.06%, Fe:0.2%, V+ Ti+Cr+Mn0.01%, surplus are aluminium and inevitable impurity.
3. a kind of Al-Zr-Sc-B heat-resisting alloy monofilament as described in claim 1, it is characterised in that: the alloy filaments are under The alloying element for stating weight percent is made: B:0.016%, Zr:0.01%, Sc:0.2%, Si:0.008%, Fe:0.04%, V+Ti+Cr+Mn0.007%, surplus are aluminium and inevitable impurity.
4. a kind of Al-Zr-Sc-B heat-resisting alloy monofilament as described in claim 1, it is characterised in that: the alloy filaments are under The alloying element for stating weight percent is made: B:0.012%, Zr:0.05%, Sc:0.05%, Si:0.005%, Fe:0.2%, V+Ti+Cr+Mn0.01%, surplus are aluminium and inevitable impurity.
5. a kind of method for preparing the Al-Zr-Sc-B heat-resisting alloy monofilament as described in any one of Claims 1 to 4, feature exist In described method includes following steps:
(1) at 730~750 DEG C, the alloying element is added into the aluminium ingot fusant of purity >=99.7%；
(2) under stirring in the fusant of step 1) 5~15min of nitrogen-blow at 710~730 DEG C, skim or be added hexachloroethanc Alkane, heat preservation stands 10~20min at 730~750 DEG C, skims；
The aluminium alloy for obtaining step 2) at (3) 700~720 DEG C pours into metal die；520~540 DEG C of tripping in are rolled, through 5 passages It is rolled into the Aluminum alloy round bar of φ 9.5mm；
(4) wire drawing of alloy round bar is made in step 4), obtains the monofilament of 3~4mm of Φ；
(5) monofilament made from step 5) is kept the temperature to 4~12h at 300~400 DEG C.
6. a kind of preparation method of Al-Zr-Sc-B heat-resisting alloy monofilament as claimed in claim 5, it is characterised in that: step 1) In by following sequences the alloying element is added:
Fine aluminium is added Al-B intermediate alloy after being completely melt and carries out borax treatment；
730~750 DEG C of addition Al-Zr, Al-Sc intermediate alloy fusings, 15~20min of 10~15min of stirring and standing.
7. a kind of preparation method of Al-Zr-Sc-B heat-resisting alloy monofilament as claimed in claim 5, it is characterised in that: the step It is rapid 2) at 740 DEG C, in molten aluminum quality 0.2% ratio be added deslagging agent.
8. a kind of preparation method of Al-Zr-Sc-B heat-resisting alloy monofilament as claimed in claim 5, it is characterised in that: the step It is rapid 2) in nitrogen-blow and refining agent or C is added in the ratio of molten aluminum quality 0.5%2Cl6Blowing is blown 5min, at 740 DEG C Heat preservation stands 20min；
The refining agent includes potassium chloride 24 according to parts by weight；Sodium chloride 35；Calcirm-fluoride 14；Sodium carbonate 50；Sodium sulphate 15； Hexafluoro sodium aluminate 12 and carbon trichloride 6.
9. a kind of preparation method of Al-Zr-Sc-B heat-resisting alloy monofilament as claimed in claim 5, it is characterised in that: the step Rapid 3) to pour into metal die, at 700 DEG C, the aluminium alloy that step 2) is obtained pours into and obtains continuous casting billet in crystallizing wheel, at 555 DEG C, With the ejection speed ejection of 10m/min.
10. a kind of preparation method of Al-Zr-Sc-B heat-resisting alloy monofilament as claimed in claim 5, it is characterised in that: described The alloying element that step 1) is added is intermediate alloy.
CN201811112206.8A 2018-09-25 2018-09-25 A kind of Al-Zr-Sc-B heat-resisting alloy monofilament and preparation method thereof Pending CN109234553A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111793758A (en) * 2020-05-26 2020-10-20 国网辽宁省电力有限公司沈阳供电公司 High-conductivity heat-resistant aluminum alloy monofilament for overhead conductor and preparation method thereof
CN113957301A (en) * 2021-10-28 2022-01-21 全球能源互联网研究院有限公司 Aluminum alloy monofilament and preparation method thereof
CN114277272A (en) * 2021-12-27 2022-04-05 上海耀鸿科技股份有限公司 Composite rare earth alloy for modifying aluminum alloy and preparation method thereof

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CN104894437A (en) * 2015-05-18 2015-09-09 广东省工业技术研究院(广州有色金属研究院) High-strength and heat-resistant aluminum alloy wire and preparation method thereof
CN105063433A (en) * 2015-08-17 2015-11-18 国网智能电网研究院 High-conductivity heat-resisting aluminum alloy monofilament and preparation method thereof
CN105609155A (en) * 2014-11-20 2016-05-25 国家电网公司 High-conductivity hard aluminum conductor single wire and manufacturing method thereof
CN107475572A (en) * 2017-08-16 2017-12-15 吴振江 Ultrafine aluminum alloy wire rod and its manufacture method and corresponding spin-off

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Publication number Priority date Publication date Assignee Title
CN105609155A (en) * 2014-11-20 2016-05-25 国家电网公司 High-conductivity hard aluminum conductor single wire and manufacturing method thereof
CN104894437A (en) * 2015-05-18 2015-09-09 广东省工业技术研究院(广州有色金属研究院) High-strength and heat-resistant aluminum alloy wire and preparation method thereof
CN104894438A (en) * 2015-06-18 2015-09-09 国网智能电网研究院 High-conductivity heat-resisting aluminum alloy monofilament material and preparation method thereof
CN105063433A (en) * 2015-08-17 2015-11-18 国网智能电网研究院 High-conductivity heat-resisting aluminum alloy monofilament and preparation method thereof
CN107475572A (en) * 2017-08-16 2017-12-15 吴振江 Ultrafine aluminum alloy wire rod and its manufacture method and corresponding spin-off

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111793758A (en) * 2020-05-26 2020-10-20 国网辽宁省电力有限公司沈阳供电公司 High-conductivity heat-resistant aluminum alloy monofilament for overhead conductor and preparation method thereof
CN113957301A (en) * 2021-10-28 2022-01-21 全球能源互联网研究院有限公司 Aluminum alloy monofilament and preparation method thereof
CN114277272A (en) * 2021-12-27 2022-04-05 上海耀鸿科技股份有限公司 Composite rare earth alloy for modifying aluminum alloy and preparation method thereof

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