CN101510456A - High-performance aluminium alloy stranded wire - Google Patents
High-performance aluminium alloy stranded wire Download PDFInfo
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- CN101510456A CN101510456A CNA2009100967983A CN200910096798A CN101510456A CN 101510456 A CN101510456 A CN 101510456A CN A2009100967983 A CNA2009100967983 A CN A2009100967983A CN 200910096798 A CN200910096798 A CN 200910096798A CN 101510456 A CN101510456 A CN 101510456A
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Abstract
The invention relates to an aluminum alloy stranded conductor with high performance. The compositions and mass percentage thereof are as follows: silicon with the mass percentage of 0.50 percent to 0.60 percent, Fe with the mass percentage of less than or equal to 0.30 percent, Cu with the mass percentage of less than or equal to 0.10 percent, Mn with the mass percentage of less than or equal to 0.030 percent, magnesium with the mass percentage of 0.65 percent to 0.75 percent, Cr with the mass percentage of less than or equal to 0.01 percent, Zn with the mass percentage of less than or equal to 0.01 percent and the rest mass percentage of aluminum. The mass percentage of aluminum, magnesium and silicon can be mutually adjusted; and the mass percentage of aluminum is controlled to be 98 percent to 99 percent so as to achieve the best state. The aluminum alloy stranded conductor has the advantages that: 1. silicon can play the role of improving crystallizing temperature, fining crystal grains, increasing the strength of aluminum-magnesium alloy lines and enhancing stress and corrosion resisting capabilities in alloy; 2. the purity of materials is extremely important for obtaining relatively high conducting performance, and the aluminum alloy stranded conductor does not contain steel ropes, thereby having higher requirement on the mechanical property of materials and realizing the optimized combination of alloys.
Description
Technical field
The present invention relates to the cable field, mainly is a kind of high-performance aluminium alloy stranded wire.
Background technology
The characteristic of high-performance aluminium alloy stranded wire, the application surface of industrially-advanced country and development trend in the world, aluminium alloy stranded conductor is compared with steel reinforced aluminium conductor, because its intensity height, in light weight, and electric conductivity advantages such as (53.5%IACS) is preferably arranged.Just begin to be applied to overhead wire as far back as nineteen twenty-one.Along with the raising of power transmission and transformation technology and the development of power transmission and transformation line, the aluminium alloy high pressure power transmission line more and more shows its superiority, the fifties begins to adopt so far in the world, states such as West Europe, Northern Europe, the U.S., Canada, Japan extensively adopt, the transmission line of France almost uses the aluminium alloy high pressure power transmission line more than 90%, Japan has also reached more than 50%, and the use amount of Southeast Asian countries is being increased sharply (the present application quantity of China is less than 5%) year by year.This is because aluminium alloy stranded conductor is compared with steel reinforced aluminium conductor, has its incomparable advantage to determine.In long distance, big leap, EHV transmission, absolute advantage; In the upgrading of rural power grids, be not only advanced but also economic good product, it is the renewal product of ordinary steel core aluminum stranded wire, also is the product of energy-conservation, material-saving, save land (saving the transmission of electricity corridor).
High-performance aluminium alloy stranded wire is applied to old track remodelling, compatibilization effect is outstanding, and can save a large amount of metal materials and capital expenditure, be particularly useful for the mechanical high strength of needs, circuit capacious, in long distance, big leap, EHV transmission, absolute advantage, in electric network reconstruction, be not only advanced but also economic good product, it is the renewal product of ordinary steel core aluminum stranded wire, also is the product of energy-conservation, material-saving, save land (saving the transmission of electricity corridor).
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, and provide a kind of high-performance aluminium alloy stranded wire, mainly be to have applied steel reinforced aluminium conductor in the national grid transformation now for better substituting, it is not high to have solved the aluminium alloy stranded conductor conductance, mechanical strength is not strong, promotes technical problems such as progressive aging and refinery practice strengthening effect.
The present invention realizes the technical scheme that above-mentioned purpose adopts.This high-performance aluminium alloy stranded wire, its composition and mass percent are: silicon 0.50%～0.60%, Fe is smaller or equal to 0.30%, Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, magnesium 0.65%～0.75%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.
The mass percent of described aluminium, magnesium, silicon can be mutually adjusted, and the mass percent of aluminium is controlled to be 98-99%, to reach optimal state.
The effect that the present invention is useful: 1, silicon can play the raising recrystallization temperature in alloy, and crystallization of refinement crystal grain improves the effect of almag line strength, and can improve the stress corrosion resistant ability.2, will seek out higher electric conductivity, the purity of material is particularly crucial so, yet the aluminium alloy stranded conductor heart yearn does not have steel wire, must propose requirements at the higher level to the mechanical property of material, realizes the optimum organization of alloy.
Embodiment:
Below in conjunction with embodiment the present invention is further described, embodiment will help to understand the present invention better, but the present invention is not limited only to following embodiment.
Embodiment 1: high-performance aluminium alloy overhead stranded conductor of the present invention is mainly used in the high voltage overhead transmission pressure.Its composition and mass percent are: silicon is 0.50%, and magnesium is 0.70%, and Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, and Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium, and aluminium is controlled at 98.5%.During production, with aluminium, 0.70% magnesium, 0.50% silicon mixes, and is molten mutually through natural gas smelting furnace height, and separate out impurity.Be distracted into diameter then and be 7.5 or 9.5mm about aluminium alloy rod.Stretch (draw greatly-in draw-draw for a short time) through multi-functional wire drawing machine, carry out timeliness again, be twisted into aluminium alloy stranded conductor.The tensile strength of the aluminium alloy stranded conductor of output is 335MPa, and elongation is 3.5%, and resistivity is 0.03176 Ω mm
2/ m.
Embodiment 2: high-performance aluminium alloy overhead stranded conductor of the present invention is mainly used in the high voltage overhead transmission pressure.Its composition and mass percent are: silicon is 0.54%, and magnesium is 0.67%, and Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, and Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium, and aluminium is controlled at 98.4%.During production, with aluminium, 0.67% magnesium, 0.54% silicon mixes, and is molten mutually through natural gas smelting furnace height, and separate out impurity.Be distracted into diameter then and be 7.5 or 9.5mm about aluminium alloy rod.Stretch (draw greatly-in draw-draw for a short time) through multi-functional wire drawing machine, carry out timeliness again, the aluminium alloy stranded conductor of all size that is twisted into.The tensile strength of the aluminium alloy stranded conductor of output is 330MPa, and elongation is 3.4%, and resistivity is 0.03170 Ω mm
2/ m.
Embodiment 3: high-performance aluminium alloy overhead stranded conductor of the present invention is mainly used in the high voltage overhead transmission pressure.Its composition and mass percent are: silicon is 0.60%, and magnesium is 0.70%, and Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, and Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium, and aluminium is controlled at 98.3%.During production, with aluminium, 0.70% magnesium, 0.60% silicon mixes, and is molten mutually through natural gas smelting furnace height, and separate out impurity.Be distracted into diameter then and be 7.5 or 9.5mm about aluminium alloy rod.Stretch (draw greatly-in draw-draw for a short time) through multi-functional wire drawing machine, carry out timeliness again, the aluminium alloy stranded conductor of all size that is twisted into.The tensile strength of the aluminium alloy stranded conductor of output is 326MPa, and elongation is 3.9%, and resistivity is 0.03168 Ω mm
2/ m.
Embodiment 4: invention high-performance aluminium alloy overhead stranded conductor, its composition and mass percent are: magnesium 0.65%, silicon 0.50%, Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.Aluminium is controlled at 98.3%, and the tensile strength of the aluminium alloy stranded conductor of output is 335MPa, and elongation is 3.5%, and resistivity is 0.03175 Ω mm
2/ m.
Embodiment 5: invention high-performance aluminium alloy overhead stranded conductor, its composition and mass percent are: magnesium 0.67%, silicon 0.52%, Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.Aluminium is controlled at 98.3%, and the tensile strength of the aluminium alloy stranded conductor of output is 335MPa, and elongation is 3.6%, and resistivity is 0.03176 Ω mm
2/ m.
Embodiment 6: invention high-performance aluminium alloy overhead stranded conductor, its composition and mass percent are: magnesium 0.68%, silicon 0.55%, Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.Aluminium is controlled at 98.3%, and the tensile strength of the aluminium alloy stranded conductor of output is 330MPa, and elongation is 3.9%, and resistivity is 0.03169 Ω mm
2/ m.
Embodiment 7: invention high-performance aluminium alloy overhead stranded conductor, its composition and mass percent are: magnesium 0.69%, silicon 0.50%, Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.Aluminium is controlled at 98.5%, and the tensile strength of the aluminium alloy stranded conductor of output is 328MPa, and elongation is 4.2%, and resistivity is 0.03177 Ω mm
2/ m.
Embodiment 8: invention high-performance aluminium alloy overhead stranded conductor, its composition and mass percent are: magnesium 0.74%, silicon 0.58%, Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.Aluminium is controlled at 98.4%, and the tensile strength of the aluminium alloy stranded conductor of output is 330MPa, and elongation is 3.7%, and resistivity is 0.03171 Ω mm
2/ m.
Embodiment 9: invention high-performance aluminium alloy overhead stranded conductor, its composition and mass percent are: magnesium 0.70%, silicon 0.52%, Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.Aluminium is controlled at 98.5%, and the tensile strength of the aluminium alloy stranded conductor of output is 329MPa, and elongation is 3.9%, and resistivity is 0.03169 Ω mm
2/ m.
Embodiment 10: invention high-performance aluminium alloy overhead stranded conductor, its composition and mass percent are: magnesium 0.72%, silicon 0.57%, Fe is smaller or equal to 0.30%, and Cu is smaller or equal to 0.10%, and Mn is smaller or equal to 0.030%, Cr is smaller or equal to 0.01%, and Zn is smaller or equal to 0.01%, and all the other are aluminium.Aluminium is controlled at 98.4%, and the tensile strength of the aluminium alloy stranded conductor of output is 330MPa, and elongation is 3.8%, and resistivity is 0.03165 Ω mm
2/ m.
Explanation of nouns:
One, tensile strength (σ b): material in drawing process, the maximum stress value that fracture is reached the time from beginning to taking place.The ability size of its expression steel opposing fracture.
If Pb be material by the maximum pull that reaches before breaking, Fo is the sample area of section, then tensile strength sigma b=Pb/Fo (MPa).
Two, percentage elongation (δ s): material is after breaking, and the percentage of the length of its plastic elongation and original sample length is percentage elongation or elongation.
Claims (2)
1, a kind of high-performance aluminium alloy stranded wire, it is characterized in that: its composition and mass percent are: silicon 0.50%～0.60%, Fe is smaller or equal to 0.30%, Cu is smaller or equal to 0.10%, Mn is smaller or equal to 0.030%, magnesium 0.65%～0.75%, and Cr is smaller or equal to 0.01%, Zn is smaller or equal to 0.01%, and all the other are aluminium.
2, high-performance aluminium alloy stranded wire according to claim 1 is characterized in that: the mass percent of described aluminium is controlled to be 98%-99%.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100967983A CN101510456A (en) | 2009-03-19 | 2009-03-19 | High-performance aluminium alloy stranded wire |
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| CNA2009100967983A CN101510456A (en) | 2009-03-19 | 2009-03-19 | High-performance aluminium alloy stranded wire |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489498A (en) * | 2012-06-12 | 2014-01-01 | 特变电工股份有限公司 | Alloy cable for machine barrel of wind driven generator |
| CN103667830A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Fe-Cu-RE aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN105047244A (en) * | 2015-07-06 | 2015-11-11 | 国网山东省电力公司烟台供电公司 | Waterproof anti-icing dewatering transmission conductor and manufacturing method thereof |
| CN107109544A (en) * | 2014-12-05 | 2017-08-29 | 古河电气工业株式会社 | Aluminium alloy wires, aluminium alloy stranded conductor, covered electric cable, the manufacture method of wire harness aluminium and aluminium alloy wires |
-
2009
- 2009-03-19 CN CNA2009100967983A patent/CN101510456A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489498A (en) * | 2012-06-12 | 2014-01-01 | 特变电工股份有限公司 | Alloy cable for machine barrel of wind driven generator |
| CN103489498B (en) * | 2012-06-12 | 2016-11-02 | 特变电工股份有限公司 | A kind of alloy cable for machine barrel of wind driven generator |
| CN103667830A (en) * | 2013-12-27 | 2014-03-26 | 安徽欣意电缆有限公司 | Al-Fe-Cu-RE aluminum alloy, preparation method thereof and aluminum alloy cable |
| CN107109544A (en) * | 2014-12-05 | 2017-08-29 | 古河电气工业株式会社 | Aluminium alloy wires, aluminium alloy stranded conductor, covered electric cable, the manufacture method of wire harness aluminium and aluminium alloy wires |
| US9997276B2 (en) | 2014-12-05 | 2018-06-12 | Furukawa Electric Co., Ltd. | Aluminum alloy wire rod, aluminum alloy stranded wire, covered wire, and wire harness, and method of manufacturing aluminum alloy wire rod |
| CN107109544B (en) * | 2014-12-05 | 2019-03-29 | 古河电气工业株式会社 | The manufacturing method of aluminium alloy wires, aluminium alloy stranded conductor, covered electric cable, harness aluminium and aluminium alloy wires |
| CN105047244A (en) * | 2015-07-06 | 2015-11-11 | 国网山东省电力公司烟台供电公司 | Waterproof anti-icing dewatering transmission conductor and manufacturing method thereof |
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Open date: 20090819 |