CN203102995U - Superhigh-strength heat-resistant aluminum alloy stranded wire with high-strength steel core - Google Patents
Superhigh-strength heat-resistant aluminum alloy stranded wire with high-strength steel core Download PDFInfo
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- CN203102995U CN203102995U CN 201320079521 CN201320079521U CN203102995U CN 203102995 U CN203102995 U CN 203102995U CN 201320079521 CN201320079521 CN 201320079521 CN 201320079521 U CN201320079521 U CN 201320079521U CN 203102995 U CN203102995 U CN 203102995U
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Abstract
The utility model belongs to the technical field of cables and discloses a superhigh-strength heat-resistant aluminum alloy stranded wire with a high-strength steel core. The stranded wire comprises a high-strength galvanized steel core group located at the middle to serve as a reinforcement core and a high-strength heat-resistant aluminum-zirconium alloy wire group wrapped on the periphery of the high-strength galvanized steel core group in a surrounding manner. The high-strength galvanized steel core is used for replacing the traditional common steel core, and the high-strength heat-resistant aluminum-zirconium alloy is used for replacing the traditional hard aluminum wire, so that the tensile strength of the stranded wire is higher due to the strength of the high-strength galvanized steel core and the super tensile strength of the high-strength heat-resistant aluminum-zirconium alloy; and meanwhile, the high-strength heat-resistant aluminum-zirconium alloy is used as a conductor, so that the stranded wire can operate at the temperature of 150 DEG C for a long time and the circuit volume is greatly increased and is improved by more than 50% compared with the traditional steel core aluminum stranded wire, and the stranded wire is particularly suitable for large-span ultrahigh (super-high) voltage transmission condition with serious icing.
Description
Technical field
The utility model belongs to technical field of cables, is specifically related to a kind of high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire, is specially adapted to big leap, serious icing, super (spy) high voltage power transmission.
Background technology
In superhigh pressure and ultra high voltage overhead transmission line field, general all is the steel reinforced aluminium conductor that adopts hard-drawn aluminium wire to make, its shortcoming is a poor heat resistance, general operating temperature is only at 70-90 ℃, and the intensity of the steel core wire in the middle of the intensity of traditional steel reinforced aluminium conductor mainly relies on own, and not high to the requirement of strength of conductive aluminum twisted wire; Simultaneously, the capacity of trunk of present steel reinforced aluminium conductor is limited.
Based on this, the twisted wire that is necessary to design a novel heat-resisting superhigh intensity satisfies at present the demand for this type of situation.
Summary of the invention
At above-mentioned weak point of the prior art, the utility model aims to provide a kind of high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire, can long-time running under 150 ℃ of temperature, increased capacity of trunk significantly, compare traditional steel reinforced aluminium conductor and improve more than 50%, and its tensile strength is near the tensile strength of high strength al-mg-si alloy twisted wire.
To achieve these goals, the technical solution of the utility model: the High Strength Steel core group as strengthening core in the middle of a kind of high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire, described twisted wire comprise reaches around the heat-resisting high-strength aluminium zircaloy line group that is coated on this High Strength Steel core group periphery.
The beneficial effects of the utility model: adopt the High Strength Steel core to replace traditional common steel core, and adopt the heat-resisting high-strength aluminium zircaloy to replace traditional hard-drawn aluminium wire, outside the intensity of High Strength Steel core itself, the characteristic that is aided with the superelevation tensile strength of heat-resisting high-strength aluminium zircaloy again makes that this twisted wire tensile strength is higher; Simultaneously because of adopting the heat-resisting high-strength aluminium zircaloy as conductor, make that this twisted wire can long-time running under 150 ℃ of temperature, increase capacity of trunk significantly, improve more than 50% than traditional steel reinforced aluminium conductor, in addition, in old track remodelling, use heat-resistant aluminum alloy wire, can not change the iron tower height, not change under the condition in circuit corridor, restringing, capacity of trunk is improved more than 50%, thereby obtain good techno-economic effect, be specially adapted to big leap, serious icing, the situation of super (spy) high voltage power transmission.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a sectional view of the present utility model.
Embodiment
Further describe the utility model below in conjunction with specific embodiment and accompanying drawing.
High Strength Steel core group 1 as strengthening core in the middle of a kind of high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire as shown in Figure 1, described twisted wire comprise reaches around the heat-resisting high-strength aluminium zircaloy line group 2,3,4 that is coated on this High Strength Steel core group 1 periphery.
Further, described heat-resisting high-strength aluminium zircaloy line group 2,3,4 employing diameters are stranded the forming of heat-resisting high-strength aluminium zircaloy single line of 2.60～4.00mm.Through evidence, good by this zinc-plated steel core and the thread aluminium alloy stranded conductor heat resistance of aluminium zircaloy, the continuous operation temperature can reach 150 ℃, simultaneously, with diameter be the tensile strength of the aluminium zircaloy single line of 2.60～4.00mm be 225～245MPa as can be known, it is compared with the tensile strength 160～170MPa of hard-drawn aluminium wire under the same diameter, has higher intensity.
Its test data is:
| Performance index | Unit | This aluminium alloy stranded conductor | Hard-drawn aluminium wire |
| Continuous operating temperature (40 years) | ℃ | 150 | 70～90 |
| Tensile strength ( |
MPa | 225～248 | 160～180 |
| Percentage elongation | % | 1.5～2.0 | —— |
| Resistivity in the time of 20 ℃ | nΩ.m | 31.347 | 28.735 |
| Conductance (being equivalent to IACS) | % | 55.0 | 61.0 |
Particularly, a High Strength Steel core in the middle of described High Strength Steel core group 1 comprises reaches the six roots of sensation High Strength Steel core around this High Strength Steel core, and this six roots of sensation High Strength Steel core constitutes a cylindrical structural.And described heat-resisting high-strength aluminium zircaloy line group 2,3,4 comprises three layers, wherein, the number of share of stock of every layer heat-resisting high-strength aluminium zircaloy line increases progressively with 6 strands number from inside to outside, for example: in the described heat-resisting high-strength aluminium zircaloy line group 2,3,4 from inside to outside the number of share of stock of every layer heat-resisting high-strength aluminium zircaloy line be 12,18,24.
Concrete number of share of stock for each single line in the described twisted wire, this example is a kind of execution mode, in actual fabrication, can carry out the number of share of stock of each single line is made according to concrete load demand, under the prerequisite that meets concrete load requirement and tensile strength, with each single line cylindrical shape of arranging, to meet the shape facility requirement of present most of cables.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire is characterized in that: in the middle of described twisted wire comprises as the High Strength Steel core group (1) of strengthening core and around being coated on the peripheral heat-resisting high-strength aluminium zircaloy line group (2,3,4) of this High Strength Steel core group (1).
2. high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire according to claim 1, it is characterized in that: a High Strength Steel core in the middle of described High Strength Steel core group (1) comprises reaches the six roots of sensation High Strength Steel core around this High Strength Steel core, and this six roots of sensation High Strength Steel core constitutes a cylindrical structural.
3. high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire according to claim 1 is characterized in that: it is stranded the forming of heat-resisting high-strength aluminium zircaloy single line of 2.60～4.00mm that described heat-resisting high-strength aluminium zircaloy line group (2,3,4) adopts diameter.
4. high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wire according to claim 1, it is characterized in that: described heat-resisting high-strength aluminium zircaloy line group (2,3,4) comprises three layers, wherein, the number of share of stock of every layer heat-resisting high-strength aluminium zircaloy line increases progressively with 6 strands number from inside to outside.
5. according to claim 1 or 2 or 3 or 4 described high strength steel core superhigh intensity heat-resisting aluminium alloy twisted wires, it is characterized in that: in the described heat-resisting high-strength aluminium zircaloy line group (2,3,4) from inside to outside the number of share of stock of every layer heat-resisting high-strength aluminium zircaloy line be 12,18,24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079521 CN203102995U (en) | 2013-02-21 | 2013-02-21 | Superhigh-strength heat-resistant aluminum alloy stranded wire with high-strength steel core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079521 CN203102995U (en) | 2013-02-21 | 2013-02-21 | Superhigh-strength heat-resistant aluminum alloy stranded wire with high-strength steel core |
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| CN203102995U true CN203102995U (en) | 2013-07-31 |
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| CN 201320079521 Expired - Fee Related CN203102995U (en) | 2013-02-21 | 2013-02-21 | Superhigh-strength heat-resistant aluminum alloy stranded wire with high-strength steel core |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632750A (en) * | 2013-11-22 | 2014-03-12 | 国家电网公司 | Novel extra-strong steel-core aluminium alloy wire used for extra-high voltage long span transmission |
| CN103839620A (en) * | 2014-03-28 | 2014-06-04 | 特变电工(德阳)电缆股份有限公司 | Light wire with super-large cross section |
-
2013
- 2013-02-21 CN CN 201320079521 patent/CN203102995U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632750A (en) * | 2013-11-22 | 2014-03-12 | 国家电网公司 | Novel extra-strong steel-core aluminium alloy wire used for extra-high voltage long span transmission |
| CN103632750B (en) * | 2013-11-22 | 2016-04-06 | 国家电网公司 | A kind of novel extra-heavy aluminium alloy conductors steel for ultra high voltage Great span |
| CN103839620A (en) * | 2014-03-28 | 2014-06-04 | 特变电工(德阳)电缆股份有限公司 | Light wire with super-large cross section |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20190221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |