CN102103896A - Highly conductive heat-resistant aluminum conductor and production process thereof - Google Patents
Highly conductive heat-resistant aluminum conductor and production process thereof Download PDFInfo
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- CN102103896A CN102103896A CN2009102649665A CN200910264966A CN102103896A CN 102103896 A CN102103896 A CN 102103896A CN 2009102649665 A CN2009102649665 A CN 2009102649665A CN 200910264966 A CN200910264966 A CN 200910264966A CN 102103896 A CN102103896 A CN 102103896A
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Abstract
The invention discloses a highly conductive heat-resistant aluminum conductor and a production process thereof. The highly conductive heat-resistant aluminum conductor is characterized by comprising a bearing core wire and an electric conductor, wherein the bearing core wire is a steel strand fabricated by stranding a plurality of high-strength or ultrahigh-strength steel wires with the tensile strength being equal to or larger than 1560 MPa, the electric conductor is fabricated by stranding highly conductive heat-resistant aluminum round wires and aluminum mold lines with the conductivity being higher than 62 percent IACS (International Annealed Copper Standard) on the periphery of the core wire, the bearing steel core wire is subjected to prestress treatment and has low creep rate and ultrahigh strength, and the electric conductor is subjected to heat treatment at the temperature of not more than 400 DEG C so as to resist heat and enable the strength remaining rate to be higher than 95 percent after being heated at the temperature of 150 DEG C for 1 hour. As a power transmission line, the highly conductive heat-resistant aluminum conductor disclosed by the invention can run at a high temperature of 150 DEG C for a long time, has excellent and high conductivity and good sag property, is applicable to capacitance expansion of newly built transmission lines and old transmission lines, and has the remarkable advantages of high conductivity, heat resistance, good sag property, less loss of transmission lines, smoothness of surface, and high resistance to wind, vibration, freezing, rain and snow.
Description
Technical field
Belong to transmission line design and manufacturing technology field, specifically a kind of design and manufacturing technology that relates to the used for transmission line lead.
Background technology
Existing used for transmission line lead comprises electric conductor and load spare two parts composition, and electric conductor wherein is that conductance is the circular single line of electrician's aluminium of 61%IACS, and load spare is the circular single line of galvanized steel, and its permission working temperature that is twisted into lead is 70～80 ℃.The capacity of transmitting electricity owing to circuit increases day by day, for increase the transmission line capability of circuit, the one, newly-increased transmission line, but under the condition that land used is becoming tight, unless other ways are difficult to solve consideration just very press for; The other approach of dilatation is to utilize original transmission line, the permission serviceability temperature of lead is constant, then must set up the long-pending conventional wires of enlarging section, the diameter of lead and weight increase thereupon synchronously, the iron tower improvement expenses of circuit is high, unsatisfactory, if adopt and existing sectional area of wire and more approaching steel core heat resistant aluminum alloy wire or the invar core heat-resistant aluminum alloy wire of combination property, make the operating temperature of lead be increased to 150 ℃ and strengthen transmission line capability, though reducing not quite still, the intensity of lead filling scope perhaps, but the sag characteristic of steel core heat resistant aluminum alloy wire is relatively poor, temperature raises and has strengthened sag, still need transform iron tower, adds that the conductance of heat resistant aluminum alloy wire electric conductor has only 60%IACS, conductance 61%IACS than existing electrician's aluminium electric conductor is also little, must increase the line loss energy consumption; If adopt invar core heat-resistant aluminum alloy wire, though can be increased to 150 ℃ to the working temperature that allows, and can improve the sag characteristic, it is big that its weak point is still line loss, contains 36～40% nickel in the invar, so price is high, also worth choosing.
Summary of the invention
Increase transmission line capability in order to overcome existing transmission line, must add transmission line or strengthen sectional area of wire and transform iron tower thereupon, use the steel core heat-resistant aluminum alloy wire, improving temperature rise but increases transmission of electricity line loss energy consumption and has increased sag, line loss is big too for invar core heat-resistant aluminum alloy wire, set up the high deficiency of cost, the invention provides a kind of high-conductive heat-resistant aluminum conductor and production technology thereof, make it when improving transmission line capability, the thermal coefficient of expansion of electric conductor is little, and the sag characteristic is good, the sag of lead meets the requirements during the increase-volume operation, can long-time running under 150 ℃ of temperature, stand 230 ℃, 1hr heats post-installation review, intensity survival rate＞95%, be that intensity reduction amount is not more than 5% good characteristic, and the smooth surface of lead, structure is tight, has the good wind resistance performance of shaking.
The technical solution used in the present invention is:
A kind of high-conductive heat-resistant aluminum conductor and production technology thereof, include and be with prestressed high-strength or Extra High Strength load steel core wire and high-conductive heat-resistant aluminium conductor aluminium round wire and aluminium molded lines composition, it is characterized in that making steel strand wire with many high-strength or extra-high tensile steel single line strands is the load heart yearn, when the load heart yearn produces and is being with the prestressed while, at its outside strand system conduction height conductive heat-resistant aluminium round wire and alumite molded lines;
A kind of production technology of high-conductive heat-resistant aluminum conductor is characterized in that comprising following production stage:
A, make steel strand wire with many high-strength or extra-high tensile steel single line strands;
B, on special equipment, steel strand wire are being with autofrettage, are making it become the high strength steel strand that possesses low creep compliance;
C, to be drawn into shape of cross section respectively with the aluminium round bar of aluminum content 〉=99.75% be that circular aluminium circle single line and shape of cross section is the aluminium type single line of S shape or Z-shaped or T shape or C shape;
D, above-mentioned aluminium single line is not more than 400 ℃ of heat treatments, makes it to have heat-resisting characteristic and satisfy intensity survival rate behind 230 ℃, 1hr heating greater than 95% effect.
E, will through with the high-strength or Extra High Strength steel strand wire of the low creep compliance of autofrettage as the load heart yearn, in its outside strand system through heat treated aluminium circle single line electric conductor;
F, strand system shape of cross section is the aluminium molded lines electric conductor of S shape or Z-shaped or T shape or C shape in the outside of alumite circle single line electric conductor strand layer;
The above-mentioned high-conductive heat-resistant aluminium circle single line and the twisted wire number of plies of aluminium molded lines electric conductor are respectively individual layer or two-layer or multilayer; Above-mentioned adjacent ectonexine of high-conductive heat-resistant aluminum conductor and the strand between the load steel core are on the contrary, and outermost layer twists to being dextrad; Above-mentioned shape of cross section is the high-conductive heat-resistant aluminium molded lines conductor layer of S shape or Z-shaped or T shape or C shape, every layer radical 〉=3, and its stranded back shape of cross section is smooth annular; Above-mentioned load steel core wire twisted wire is through or the aluminum-zinc alloy zinc-plated with the high-strength or Extra High Strength of autofrettage or the steel core wire of aluminizing.
Remarkable advantage of the present invention is that the operation line loss energy consumption of circuit is low, the conductance of high-conductive heat-resistant aluminum conductor is greater than 62%IACS, greater than conductance is that existing conventional electrician's aluminium electric conductor and the conductance of 61%IACS is the 60%IACS heat resistant aluminum alloy wire, and through 230 ℃, the intensity survival rate is greater than 95% after the 1hr heating post-installation review, promptly have intensity reduction amount and be no more than 5% good characteristic, can long-time running under 150 ℃ of temperature, its load heart yearn intensity height, creep compliance is little, improved the sag characteristic of circuit, meet the transmission of electricity standard-required, the high-conductive heat-resistant aluminium molded lines smooth surface on top layer, structure is tight, has the shake ability of performance and anti-freezing sleet disaster of good wind resistance.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1～Fig. 6 is the cross-sectional structure figure of the multiple version of a kind of high-conductive heat-resistant aluminum conductor of the present invention.
In Fig. 1～Fig. 6: 1. be with prestressed high-strength or Extra High Strength load steel core wire, 2. high-conductive heat-resistant aluminium round wire, 3. high-conductive heat-resistant aluminium molded lines.
Embodiment
In Fig. 1～Fig. 6, a kind of high-conductive heat-resistant aluminum conductor and production technology thereof, include high-strength or Extra High Strength load steel core wire 1, high-conductive heat-resistant aluminium circle single line 2 and high-conductive heat-resistant aluminium molded lines 3 compositions, it is characterized in that steel strand wire high-strength with many or that the single steel wire of Extra High Strength circle is twisted into are load heart yearn 1, be made as the high-conductive heat-resistant aluminium circle single line 2 and the aluminium molded lines 3 of electric conductor in its outer concentric strand; The above-mentioned high-conductive heat-resistant aluminium circle single line 2 and the number of plies of aluminium molded lines 3 twisted wires are respectively individual layer, two-layer or multilayer; The strand of the adjacent inside and outside strand layer between above-mentioned high-conductive heat-resistant aluminium circle single line 2 and aluminium molded lines twisted wire and the load steel core wire is on the contrary, and outermost twisted wire layer is a dextrad; Above-mentioned shape of cross section is radical 〉=3 of every layer of twisted wire of the high-conductive heat-resistant aluminium molded lines 3 of S type or Z-shaped or T shape or C shape, and its shape of cross section is smooth annular; Above-mentioned high-strength or Extra High Strength load steel core wire is through with the zinc-plated or aluminum-zinc alloy of autofrettage or the steel core wire of aluminizing;
A kind of production craft step of alumite lead of high conduction is:
A, make the guiding principle twisted wire with many high-strength or extra-high tensile steel single line strands;
B, on special equipment, steel strand wire are being with autofrettage, it are being become possess the high-strength of low creep compliance or Extra High Strength load heart yearn, its tensile strength 〉=1560Mpa;
C, aluminium circle single line 2 and shape of cross section that the aluminium round bar of aluminum content 〉=99.75% is drawn into as electric conductor are the aluminium type single line 3 of S shape or Z-shaped or T shape or C shape;
D, above-mentioned aluminium single line 2,3 is not more than the heat treatment of 400 ℃ of temperature, make it to have heat-resisting characteristic, and satisfy intensity survival rate behind 230 ℃, 1hr heating greater than 95% effect, that is have can be under 150 ℃ of temperature long-time running and intensity reduction amount is no more than 5% good characteristic;
E, will be with the high-strength or Extra High Strength steel strand wire of prestressed low creep compliance as load heart yearn 1, from inside to outside the strand system is through heat treated high-conductive heat-resistant aluminium circle single line 2 and aluminium type single line 3 respectively in its outside simultaneously, and its number of plies is respectively individual layer, two-layer or multilayer; Strand is on the contrary between the adjacent ectonexine between electric conductor 2,3 and the load steel core wire, but the strand that will make the outermost layer conductor is to being dextrad;
Fig. 1～Fig. 6 is the embodiment of 6 kinds of different structure forms of sub-fraction of a kind of high-conductive heat-resistant aluminum conductor of the present invention.Twisting system high-conductive heat-resistant aluminium circle single line 2 outside being with prestressed low creep high strength load steel core wire can be individual layer (seeing Fig. 1, Fig. 3, Fig. 5), perhaps double-deck (seeing Fig. 2, Fig. 4, Fig. 6) or multilayer, strand system high-conductive heat-resistant aluminium molded lines 3 is S type (seeing Fig. 1, Fig. 2) or T shape (seeing Fig. 3, Fig. 4) outside heat-resisting aluminium round wire 2, perhaps C shape (seeing Fig. 5, Fig. 6) or Z-shaped, the number of plies of this high-conductive heat-resistant aluminium molded lines is that individual layer (is seen Fig. 1～Fig. 6), or double-deck, or multilayer.Within the scope of the present invention along with the variation of high-conductive heat-resistant aluminium round wire and the aluminium molded lines number of plies, radical and version can be formed various combination, can also conversion go out the version of various kinds high-conductive heat-resistant aluminum conductor.As space is limited, needn't enumerate one by one and give unnecessary details.
Claims (5)
1. high-conductive heat-resistant aluminum conductor and production technology thereof, include high-strength or Extra High Strength load steel core wire (1) and electric conductor high-conductive heat-resistant aluminium round wire (2) and high-conductive heat-resistant aluminium molded lines (3) composition, it is characterized in that steel strand wire high-strength with many or that extra-high tensile steel single line (1) is stranded are load heart yearn (1), at its outside strand system conduction height conductive heat-resistant aluminium round wire (2) and high-conductive heat-resistant aluminium molded lines (3);
A kind of production technology of high-conductive heat-resistant aluminum conductor is characterized in that comprising following production stage:
A, make steel strand wire with many high-strength or extra-high tensile steel single line strands;
B, on special equipment, above-mentioned steel strand wire are being with autofrettage, it are being become possess the high-strength of low creep compliance or Extra High Strength load heart yearn, its tensile strength 〉=1560Mpa;
C, the aluminium round bar of aluminum content 〉=99.75% is drawn into aluminium circle single line (2) and shape of cross section is the aluminium type single line of S shape or Z-shaped or T shape or C shape;
D, aluminium circle single line (2) and aluminium type single line (3) are carried out being not more than heat treatment under 400 ℃ of temperature, make it to have heat-resisting characteristic and satisfy intensity survival rate after 230 ℃, 1hr heat greater than 95% effect;
E, will be with the high-strength of prestressed low creep compliance or Extra High Strength steel strand wire as load heart yearn (1), in its outside strand system through heat treated high-conductive heat-resistant aluminium circle single line (2) electric conductor;
F, be high-conductive heat-resistant aluminium molded lines (3) electric conductor of S shape or Z-shaped or T shape or C shape at high-conductive heat-resistant aluminium round wire (2) twisted wire outside strand system shape of cross section.
2. a kind of high-conductive heat-resistant aluminum conductor according to claim 1 and production technology thereof is characterized in that the twisted wire number of plies of round single line (2) of the electric conductor high-conductive heat-resistant aluminium of strand outside load heart yearn (1) and high-conductive heat-resistant aluminium molded lines is respectively individual layer, bilayer or multilayer.
3. a kind of high-conductive heat-resistant aluminum conductor according to claim 1 and production technology thereof, it is characterized in that total number of plies more than two-layer the high-conductive heat-resistant aluminium round wire and the adjacent ectonexine between aluminium molded lines and the load steel wire between about revolve strand on the contrary, outermost layer is a dextrad.
4. a kind of high-conductive heat-resistant aluminum conductor according to claim 1, it is characterized in that shape of cross section is that each twisted wire layer of high-conductive heat-resistant aluminium molded lines (3) of S shape or Z-shaped or T shape or C shape is stranded by the aluminium type single line (3) with a kind of shape, its radical is 〉=3, and the shape of cross section after stranded is a smooth annular.
5. a kind of high-conductive heat-resistant aluminum conductor according to claim 1 and production technology thereof is characterized in that load steel core wire (1) is through or plate golding aluminium zinc alloy or aluminum-plated steel heart yearn zinc-plated with the high-strength or Extra High Strength of autofrettage.
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| CN2009102649665A CN102103896A (en) | 2009-12-16 | 2009-12-16 | Highly conductive heat-resistant aluminum conductor and production process thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646476A (en) * | 2012-05-15 | 2012-08-22 | 黄豪士 | Stress transfer type guide wire with guide wire arc dependent on force bearing piece and manufacturing method thereof |
| CN102693774A (en) * | 2012-06-01 | 2012-09-26 | 湖南省电力公司科学研究院 | Ice melting ground wire externally wound with insulated copper wires |
| ES2528171A1 (en) * | 2014-10-31 | 2015-02-04 | La Farga Lacambra S.A.U. | Cable for overhead lines and manufacturing procedure (Machine-translation by Google Translate, not legally binding) |
| CN106205813A (en) * | 2015-05-05 | 2016-12-07 | 毕恒利 | Cable |
| CN106653155A (en) * | 2017-03-16 | 2017-05-10 | 江苏亨通电力特种导线有限公司 | Constant-temperature prestress processing steel core aluminum twisted wire |
| CN108288518A (en) * | 2018-01-28 | 2018-07-17 | 深圳市圣龙新材料科技有限公司 | A kind of novel conductive wire and its application |
| EP3213327A4 (en) * | 2014-09-26 | 2018-08-08 | Jianping Huang | Energy efficient conductors with reduced thermal knee points and the method of manufacture thereof |
| CN108682513A (en) * | 2018-05-12 | 2018-10-19 | 固力发电气有限公司 | A kind of heat-resisting wire production and processing technology |
| CN109065220A (en) * | 2018-08-17 | 2018-12-21 | 江苏亨通电力特种导线有限公司 | A kind of high anti-corrosion type duralumin molded line twisted wire of self-damping low-loss and manufacturing method |
| SE2050904A1 (en) * | 2020-07-17 | 2022-01-18 | Mee Invest Scandinavia Ab | Manufacturing of electrical conductors |
| CN114464349A (en) * | 2022-03-03 | 2022-05-10 | 远东电缆有限公司 | Hollow expanded diameter conductor and preparation method thereof |
| CN117790043A (en) * | 2023-12-04 | 2024-03-29 | 江苏通光强能输电线科技有限公司 | Low-creep type low-temperature-reduction compensation wire and manufacturing method thereof |
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2009
- 2009-12-16 CN CN2009102649665A patent/CN102103896A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646476A (en) * | 2012-05-15 | 2012-08-22 | 黄豪士 | Stress transfer type guide wire with guide wire arc dependent on force bearing piece and manufacturing method thereof |
| CN102693774A (en) * | 2012-06-01 | 2012-09-26 | 湖南省电力公司科学研究院 | Ice melting ground wire externally wound with insulated copper wires |
| AU2015323325B2 (en) * | 2014-09-26 | 2020-09-24 | Ts Conductor Corp. | Energy efficient conductors with reduced thermal knee points and the method of manufacture thereof |
| EP3213327A4 (en) * | 2014-09-26 | 2018-08-08 | Jianping Huang | Energy efficient conductors with reduced thermal knee points and the method of manufacture thereof |
| ES2528171A1 (en) * | 2014-10-31 | 2015-02-04 | La Farga Lacambra S.A.U. | Cable for overhead lines and manufacturing procedure (Machine-translation by Google Translate, not legally binding) |
| CN106205813A (en) * | 2015-05-05 | 2016-12-07 | 毕恒利 | Cable |
| CN106653155A (en) * | 2017-03-16 | 2017-05-10 | 江苏亨通电力特种导线有限公司 | Constant-temperature prestress processing steel core aluminum twisted wire |
| CN108288518A (en) * | 2018-01-28 | 2018-07-17 | 深圳市圣龙新材料科技有限公司 | A kind of novel conductive wire and its application |
| CN108682513A (en) * | 2018-05-12 | 2018-10-19 | 固力发电气有限公司 | A kind of heat-resisting wire production and processing technology |
| CN109065220A (en) * | 2018-08-17 | 2018-12-21 | 江苏亨通电力特种导线有限公司 | A kind of high anti-corrosion type duralumin molded line twisted wire of self-damping low-loss and manufacturing method |
| SE2050904A1 (en) * | 2020-07-17 | 2022-01-18 | Mee Invest Scandinavia Ab | Manufacturing of electrical conductors |
| CN114464349A (en) * | 2022-03-03 | 2022-05-10 | 远东电缆有限公司 | Hollow expanded diameter conductor and preparation method thereof |
| CN117790043A (en) * | 2023-12-04 | 2024-03-29 | 江苏通光强能输电线科技有限公司 | Low-creep type low-temperature-reduction compensation wire and manufacturing method thereof |
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Application publication date: 20110622 |