CN102634695A - High-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire and production method thereof - Google Patents

High-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire and production method thereof Download PDF

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CN102634695A
CN102634695A CN2012101249332A CN201210124933A CN102634695A CN 102634695 A CN102634695 A CN 102634695A CN 2012101249332 A CN2012101249332 A CN 2012101249332A CN 201210124933 A CN201210124933 A CN 201210124933A CN 102634695 A CN102634695 A CN 102634695A
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conductivity
aluminium
aluminum alloy
treatment type
thermal treatment
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CN2012101249332A
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Chinese (zh)
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成祥
胡清平
孙立军
刘长江
张洁
蒋超
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远东电缆有限公司
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Abstract

The invention discloses a high-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire and a production method of the high-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire. The high-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire is produced by finely selecting ingredients and contents of aluminum alloy and conducting process control. The specific steps are as follows: selecting Fe, Si, Mg, Cu and Re with different weight percents, melting aluminum ingot with the content not more than 0.03% in a vertical melting furnace, adding alloying elements in a heat insulation furnace, stirring, refining, conducting on-the-spot contents rapid analysis, carrying out content adjustment, and standing, enabling the aluminum ingot and the alloying element into a continuous casting machine for casting, rolling to be a circular aluminum alloy rod on a continuous rolling machine, pulling the circular aluminum alloy rod to be a circular aluminum alloy wire and twisting the circular aluminum alloy wire to be a conductor for aerial power transmission and distribution. According to the application of the aluminum alloy wire and the production method of the aluminum alloy wire, the aluminum alloy wire directly replaces the generally used aluminum conductor steel reinforced and is an energy-saving, environment-friendly and novel wire.

Description

Strength aluminium alloy line and method of manufacture thereof in the non-thermal treatment type of a kind of high conductivity
Technical field
The present invention relates to a kind of manufacturing of electrical material, is a kind of manufacturing technology of cond aluminium, relates in particular to a kind of high conductivity non-thermal treatment type aluminum alloy line and method of manufacture thereof.
Background technology
At present, still common employing Aluminium Cable Steel Reinforced, aluminium Baogang core aluminum stranded wire are used lead as power transmission and distribution on China's transmitting line.Continuous increase along with national electricity needs; National grid is to development ultra, extra high voltage line; Advocate the demand of " amphitypy three the is new " power grid construction of " resource-conserving, environmentally friendly and new technology, novel material, novel process " simultaneously, try to explore to use novel aerial condutor.Aluminium Cable Steel Reinforced and aluminium Baogang core aluminum stranded wire have to add strengthening core elements such as steel core or aluminium Baogang core because the tensile strength of conventional aluminium material is low in the conductor structure design.Strengthening core elements such as steel core or aluminium Baogang core not only increase wire weight, significantly increase operation and transportation cost, and need higher iron tower and more firm iron tower foundation, and floor space is big.In addition, in the transmission line of alternation current, the magnetic hysteresis loss that reinforcing elements such as steel core or aluminium Baogang core also can cause has reduced the circuit transmission capacity.
Chinese patent CN 102041418 A have announced a kind of middle strength aluminium alloy line method of manufacturing 57% electric conductivity; Although tensile strength >=245MPa; But its electric conductivity only is 57%; If be widely used on the line, certainly will cause the huge loss of transmitting line electric energy, cause the voltage of circuit significantly to reduce simultaneously.
Chinese patent CN 201110030978.9 has announced a kind of middle strength aluminium alloy line method of manufacturing 59% electric conductivity, although tensile strength >=230MPa, its electric conductivity can only reach 59%-59.3%IACS; And need homogenize to aluminium alloy cast ingot and handle and subsequently duraluminum single line need adopt heat treating method; Duraluminum single line after being about to draw is all put into heat treatment furnace, and it is warmed to 180-220 ℃, is incubated 5-6 hour; This kind working method is for enterprise; Not only need add aluminium alloy cast ingot and homogenize and handle stove and aluminium alloy wires heat treatment furnace equipment, also need consume a large amount of electric energy simultaneously, the heat treatment furnace volume is limited in addition; Once can only handle a small amount of ingot casting or aluminum alloy line; Make intermediates overstocked in a large number on heat treatment step, have more this binomial operation and seriously restricted production efficiency and delivery cycle and increase product cost, be prone to produce the product ingot casting in addition in the heat treatment process and homogenize inhomogeneous with aluminum alloy line thermal treatment; Cause product performance unstable, reduce product percent of pass.
Chinese patent CN 1485455A has announced a kind of method of making non-thermal treatment type 60%IACS high-conductive heat-resistance aluminium alloy wire, although its electric conductivity reaches 60%IACS, its tensile strength only >=159MPa, the leading of its manufacturing
The whole tensile strength of line is low; Usually only be used for 100m and following little span distribution line operation; If 110kV and above transmitting line; Lead needs the whole conductor tensile strength that improve of strengthening core such as extra adding steel core, and strengthening cores such as extra steel core add, and causing that wire weight significantly increases with the lead loss increases.Increased the supporting capacity of iron tower in addition, the height of iron tower has to improve simultaneously, needs bigger iron tower ground floor space and length of embedment, causes the multiplication of quantities and construction costs.
Summary of the invention
The present invention is directed to above-mentioned deficiency provide a kind of non-thermal treatment, transmission capacity big, draw that anharmonic ratio is big, resistance losses is low, good, the no magnetic hysteresis loss of sag performance, overload performance is good, construction costs is low, the high conductivity of easy construction, long service life (>=60%IACS) aluminum alloy line and method of manufacture thereof.
The present invention is for solving the problems of the technologies described above; Strength aluminium alloy line in the non-thermal treatment type of a kind of high conductivity is provided; It is characterized in that the raw material weight proportioning is: Fe:0.10 ~ 0.90%, Si:0.10 ~ 0.50%, Mg:0.05 ~ 0.40%, Cu:0.02 ~ 0.80%, Re:0.05 ~ 0.6%, surplus are aluminium and inevitable trace impurity.
The present invention provides strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity for solving the problems of the technologies described above, and it is characterized in that may further comprise the steps:
(1) selected aluminium ingot: selecting the impurity weight percent content is Si≤0.1%, Fe≤0.20%, Cu≤0.01%, Ti+V+Cr+Mn≤0.02%, the aluminium ingot of all the other every kind impurity≤0.03%;
(2) melting of aluminium ingot: with aluminium ingot put into heat be molten into aluminium liquid to 800 ~ 950 ℃ vertical smelting furnace after, be transferred to and heat to 750 ~ 850 ℃ holding furnace;
(3) Alloying Treatment: in aluminium liquid, adding weight percentage is Fe:0.10 ~ 0.90%, Si:0.05 ~ 0.50%, Mg:0.05 ~ 0.40%, Cu:0.02 ~ 0.80% and Re:0.05 ~ 0.6%, as the interpolation element of alloying;
(4) refining, degasification, slagging-off: in holding furnace, stir, refining, degasification, slagging-off, and adopt the powdery insulating covering agent to cover aluminium liquid surface, and left standstill 30 ~ 45 minutes;
(5) alloy component analysis, adjustment: with direct-reading fast spectral analysis appearance or chemical analysis principal element is carried out the stokehold and detect, analyze, adjust control element content;
(6) continuous casting and rolling: the molten aluminium in the holding furnace filters through online degasification and ceramic filter device through chute, gets into liquid filling machine continuous casting and tandem rolling unit and processes the aluminium alloy rod that diameter is 9.5mm or 12mm;
(7) pole stock backguy and strand system: on multimode sliding type or non-sliding type drawing machine, be drawn into the finished product aluminum alloy line of required diameter, and stranded conductor on the frame twisted wire of pre twist and constant tension control device is being arranged.
Further preferred as strength aluminium alloy line in the non-thermal treatment type of a kind of high conductivity of the present invention, described holding furnace is circular holding furnace, the temperature of aluminium liquid is 720 ~ 760 ℃ in the stove.Through adopting circular holding furnace, guaranteed to stir, do not have the dead angle after the duraluminum batching.The temperature of aluminium liquid is 720 ~ 760 ℃; Shorten fusing time after guaranteeing to drop into each composition in the aluminum solutions; Accelerate respectively to add element and disperse and even diffused, do not produce, finally cause the product performance fluctuation big because composition is enriched in the somewhere and causes uneven components in the aluminium alloy solution.
As the further improvement of strength aluminium alloy line in the non-thermal treatment type of a kind of high conductivity of the present invention, liquid filling machine is 4,5 or 6 wheeled continuous casters, and the crystallizing wheel of liquid filling machine is M or H type.4, the application of 5 or 6 wheeled continuous casters can not met with steel band after one side makes the ingot casting base come out from casting machine, thereby made ingot casting not need windup-degree directly to be admitted to milling train, has improved ingot quality.On the other hand, prolonged and cast, alleviated casting is taken place by the repeated stress of shock heating quenching for a long time down with crystallizing wheel destruction, the work-ing life of having improved liquid filling machine and crystallizing wheel with the work-ing life of steel band.The crystallizing wheel of liquid filling machine is M or H type, can make ingot casting cooling all around evenly, guarantees that the ingot casting compact crystallization is even, structural state stable.
Further preferred as strength aluminium alloy line in the non-thermal treatment type of a kind of high conductivity of the present invention, described tandem rolling unit is 14 combined frames or two rollers, 14 frames that three rollers, 15 frames or two rollers add three rollers.Compression ratio is big; Help making the rolling better and distortion of ingot casting, improve and promoted the compactness that shuts out the bar inside metallographic, eliminated ingot casting potential crack and bubble and arrived minimum degree; Aluminium bar quality is greatly got a promotion, produce the good duraluminum pole stock of intensity and unit elongation.The end breakage rate that in the backguy deep processing of back operation, shows especially reduces greatly, and advantage is very outstanding.Further preferred as strength aluminium alloy line in the non-thermal treatment type of a kind of high conductivity of the present invention, the temperature of described aluminium liquid before getting into liquid filling machine is controlled to be 680 ~ 710 ℃; Liquid filling machine cooling-lubricant total pressure is 0.1 ~ 0.4MPa, and temperature is 25 ℃ ~ 40 ℃; The temperature of aluminium liquid cast back when getting into milling train is controlled at 480 ~ 520 ℃, and the finishing temperature of aluminium alloy rod is 200 ~ 300 ℃.This temperature and lubrication pressure help the better ingot casting of aluminium alloy rod and subsequent thermal is rolling and the performance of assurance finished product duraluminum pole stock through being provided with.
Further preferred as strength aluminium alloy line in the non-thermal treatment type of a kind of high conductivity of the present invention, the pull wire speed of duraluminum pole stock is 2 ~ 25 meter per seconds, the twisted wire speed of aluminum alloy line is 2 ~ 32 meter per seconds.In this velocity range, aluminium alloy wires performance, process implementing worker process and production efficiency three are in the best combination state.
Beneficial effect of the present invention: strength aluminium alloy line in the non-thermal treatment type of high conductivity that employing the present invention makes; Its electric conductivity scope is 60-60.8%IACS; Tensile strength >=240MPa; Can be used for the Aluminium Cable Steel Reinforced that replaces the current power transmission industry to use, product can be applicable in 1000kV and the following defeated change distribution line.Compare with conventional Aluminium Cable Steel Reinforced; The strength aluminium alloy lead structurally all adopts the duraluminum single line concentric stranding of conduction usefulness to form in the non-thermal treatment type of high conductivity, and aluminum alloy line is born conduction and strengthening core effect simultaneously, does not have the steel core single-candidate to strengthen element outward; There are not magnetic hysteresis loss and eddy-current loss; Also not because galvanic corrosion and extension lead work-ing life greatly between the differing materials, its major advantage is following: the first, and production technique is easy, cost is low, efficient is high; The second, to compare with isodiametric Aluminium Cable Steel Reinforced, the sag characteristic is good, and the comparable Aluminium Cable Steel Reinforced of average tower height reduces about 3 meters, can effectively reduce the line construction investment; The 3rd, elongation is big, and the duraluminum single line is 2 times of aluminum steel, makes this aerial condutor have good anti-overload ability and fatigue resistance; The 4th, hot properties is good, and this aerial condutor does not produce loss of strength at 90 ℃ of continuous services, and operation under higher temperature, loss of strength are also few, and hot operation is played the artificial aging effect, raising specific conductivity 2 ~ 5%; The 5th, the load aspect is compared with the Aluminium Cable Steel Reinforced of same diameter, horizontal loading, vertically quite powerful, and vertical load can reduce 10%; The 6th, compare with the Aluminium Cable Steel Reinforced of same diameter, when externally condition was identical, when promptly division number, heading spacing, distance to the ground, phase spacing etc. were identical, its ground electric field intensity, magneticstrength, wireless interference, audible noise etc. were also identical; The 7th, easy construction, this lead is twisted into by same material; Make the gold utensil that continues simple, only need 1 its ys of splicing sleeve to be about 1.5 times of aluminum steel, compression-type is continued is difficult for producing lead bulge or lantern phenomenon; Can reduce the crimping workload to anti-strong wire jumper, raise the efficiency, simultaneously because the hardness of aluminum alloy line is 2 times of aluminum steel; But the weight ratio Aluminium Cable Steel Reinforced is light, can reduce the conductive line surfaces scratch during the construction line-putting, improves construction quality.The 8th, this lead steel core free does not exist eddy current and magnetic hysteresis loss; Alternating current-direct current resistance is smaller, and is bigger than the current capacity of the Aluminium Cable Steel Reinforced of same diameter, particularly during large capacity transmission; Consumption reduction obviously can satisfy the engineering request for utilization, reaches the purpose of energy-conservation, consumption reduction, environmental protection; Have obvious economic benefit and social benefit, be of great importance to building " resource-conserving, environmentally friendly " electrical network, this aerial condutor has natural resistivity to atomospheric corrosion simultaneously; Avoided the galvanic etching between aluminum steel and the galvanized steel wire, but extension lead operation life.The 9th; The aluminium alloy cast ingot that this lead has saved patent CN 102041418 A and CN 201110030978.9 regulations homogenizes and handles and aluminium alloy wires thermal treatment two procedures; Improved product percent of pass, accelerated the delivery cycle of finished product, simultaneously low cost product.Can reduce construction costs greatly for power transmission engineering; High-conductivity aluminum alloy line according to the present invention's manufacturing; The Aluminium Cable Steel Reinforced that can replace the current power transmission industry to use, product can be widely used in 1000kV and the following defeated change distribution line, at present; The intensity lead does not still have International Electrotechnical Commission Standard and Chinese national standard in the non-thermal treatment type of high conductivity, and domestic also do not have a practical applications.Along with the develop rapidly of China's electric power, overhead transmission line road direction large vol, ultra-high voltage, extra-high voltage development, aerial condutor also develops to large section, high conductivity, HS, alloying, no strengthening core novel conductive wire and many minutes cracking directions.The application of intensity lead has tangible economic benefit and social benefit in the non-thermal treatment type of high conductivity.
Description of drawings
Fig. 1 is a manufacturing process synoptic diagram of the present invention.
Embodiment
Below in conjunction with Fig. 1 the present invention is described further.
Embodiment 1: strength aluminium alloy line in the non-thermal treatment type of a kind of high conductivity is characterized in that the raw material weight proportioning is: Fe:0.10%, Si:0.3%, Mg:0.10%, Cu:0.05%, Re:0.5%, surplus is aluminium and inevitable trace impurity.
Strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity is characterized in that may further comprise the steps:
(1) selected aluminium ingot: selecting the impurity weight percent content is Si≤0.1%, Fe≤0.20%, Cu≤0.01%, Ti+V+Cr+Mn≤0.02%, the aluminium ingot of all the other every kind impurity≤0.03%;
(2) melting of aluminium ingot: with aluminium ingot put into heat be molten into aluminium liquid to 800 ~ 950 ℃ vertical smelting furnace after, be transferred to and heat to 750 ~ 850 ℃ holding furnace;
(3) Alloying Treatment: in aluminium liquid, add Fe:0.10%, Si:0.3%, Mg:0.10%, Cu:0.05% and the Re:0.5% of above-mentioned weight proportion, as the interpolation element of alloying;
(4) refining, degasification, slagging-off: in holding furnace, stir, refining, degasification, slagging-off, and adopt the powdery insulating covering agent to cover aluminium liquid surface, and left standstill 30 ~ 45 minutes;
(5) alloy component analysis, adjustment: with direct-reading fast spectral analysis appearance or chemical analysis principal element is carried out the stokehold and detect, analyze, adjust control element content;
(6) continuous casting and rolling: the molten aluminium in the holding furnace filters through online degasification and ceramic filter device through chute, gets into liquid filling machine continuous casting and tandem rolling unit and processes the aluminium alloy rod that diameter is 9.5mm or 12mm;
(7) pole stock backguy and strand system: on multimode sliding type or non-sliding type drawing machine, be drawn into the finished product aluminum alloy line of required diameter, and stranded conductor on the frame twisted wire of pre twist and constant tension control device is being arranged.
The temperature of described aluminium liquid before getting into liquid filling machine is controlled to be 680 ~ 710 ℃; Liquid filling machine cooling-lubricant total pressure is 0.1 ~ 0.4MPa, and temperature is 25 ℃ ~ 40 ℃; The temperature of aluminium liquid cast back when getting into milling train is controlled at 480 ~ 520 ℃, and the finishing temperature of aluminium alloy rod is 200 ~ 300 ℃; The pull wire speed of duraluminum pole stock is 2 ~ 25 meter per seconds, and the twisted wire speed of aluminum alloy line is 2 ~ 32 meter per seconds.
Embodiment 2 ~ 9, and the composition of raw materials of strength aluminium alloy line is seen table one in the non-thermal treatment type of a kind of high conductivity, and method of manufacture is with reference to embodiment 1, the experiment effect correspondence table two of each embodiment.

Claims (9)

1. strength aluminium alloy line in the non-thermal treatment type of high conductivity; It is characterized in that the raw material weight proportioning is: Fe:0.10 ~ 0.90%, Si:0.10 ~ 0.50%, Mg:0.05 ~ 0.40%, Cu:0.02 ~ 0.80%, Re:0.05 ~ 0.6%, surplus are aluminium and inevitable trace impurity.
2. strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity according to claim 1 is characterized in that may further comprise the steps:
(1) selected aluminium ingot: selecting the impurity weight percent content is Si≤0.1%, Fe≤0.20%, Cu≤0.01%, Ti+V+Cr+Mn≤0.02%, the aluminium ingot of all the other every kind impurity≤0.03%;
(2) melting of aluminium ingot: with aluminium ingot put into heat be molten into aluminium liquid to 800 ~ 950 ℃ vertical smelting furnace after, be transferred to and heat to 750 ~ 850 ℃ holding furnace;
(3) Alloying Treatment: in aluminium liquid, adding weight percentage is Fe:0.10 ~ 0.90%, Si:0.05 ~ 0.50%, Mg:0.05 ~ 0.40%, Cu:0.02 ~ 0.80% and Re:0.05 ~ 0.6%, as the interpolation element of alloying;
(4) refining, degasification, slagging-off: in holding furnace, stir, refining, degasification, slagging-off, and adopt the powdery insulating covering agent to cover aluminium liquid surface, and left standstill 30 ~ 45 minutes;
(5) alloy component analysis, adjustment: with direct-reading fast spectral analysis appearance or chemical analysis principal element is carried out the stokehold and detect, analyze, adjust control element content;
(6) continuous casting and rolling: the molten aluminium in the holding furnace filters through online degasification and ceramic filter device through chute, gets into liquid filling machine continuous casting and tandem rolling unit and processes the aluminium alloy rod that diameter is 9.5mm or 12mm;
(7) pole stock backguy and strand system: on multimode sliding type or non-sliding type drawing machine, be drawn into the finished product aluminum alloy line of required diameter, and stranded conductor on the frame twisted wire of pre twist and constant tension control device is being arranged.
3. strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity according to claim 2 is characterized in that described holding furnace is circular holding furnace, and the temperature of aluminium liquid is 720 ~ 760 ℃ in the stove.
4. strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity according to claim 2 is characterized in that said liquid filling machine is 4,5 or 6 wheeled continuous casters, and the crystallizing wheel of liquid filling machine is M or H type.
5. strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity according to claim 2 is characterized in that described tandem rolling unit is 14 combined frames or two rollers, 14 frames that three rollers, 15 frames or two rollers add three rollers.
6. strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity according to claim 2; It is characterized in that the temperature of described aluminium liquid before getting into liquid filling machine is controlled to be 680 ~ 710 ℃; Liquid filling machine cooling-lubricant total pressure is 0.1 ~ 0.4MPa, and temperature is 25 ℃ ~ 40 ℃.
7. strength aluminium alloy line method of manufacture in the non-thermal treatment type of a kind of high conductivity according to claim 2 is characterized in that the temperature of aluminium liquid cast back when getting into milling train is controlled at 480 ~ 520 ℃, and the finishing temperature of aluminium alloy rod is 200 ~ 300 ℃.
8. a kind of method method of manufacture of making strength aluminium alloy line in the non-thermal treatment type of high conductivity according to claim 2, the pull wire speed that it is characterized in that the duraluminum pole stock is 2 ~ 25 meter per seconds.
9. a kind of method method of manufacture of making strength aluminium alloy line in the non-thermal treatment type of high conductivity according to claim 2, the twisted wire speed that it is characterized in that aluminum alloy line is 2 ~ 32 meter per seconds.
CN2012101249332A 2012-04-26 2012-04-26 High-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire and production method thereof CN102634695A (en)

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CN104307919A (en) * 2013-02-27 2015-01-28 滁州华尊电气科技有限公司 Method for manufacturing bus by using high-quality aluminum ingot as raw material
CN104438425A (en) * 2013-02-27 2015-03-25 滁州华尊电气科技有限公司 Method for preparing buses for electrical engineering through taking high-quality aluminum ingots as raw material
CN104485152A (en) * 2014-12-03 2015-04-01 浙江东晟新材料有限公司 Aluminum alloy conductor and production process thereof
CN104805321A (en) * 2015-05-13 2015-07-29 江苏亨通电力特种导线有限公司 Preparation method for moderate-intensity aluminum (aluminum alloy) single wire
CN104805335A (en) * 2015-05-13 2015-07-29 江苏亨通电力特种导线有限公司 Low-resistivity aluminum alloy rod
CN104805334A (en) * 2015-05-13 2015-07-29 江苏亨通电力特种导线有限公司 Moderate-intensity high-conductivity aluminium alloy material
CN105088035A (en) * 2015-07-30 2015-11-25 中南大学 High-conductivity moderate-strength non-thermal processing type aluminum alloy conductor material and manufacturing method
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CN106498199A (en) * 2016-11-02 2017-03-15 昆明冶金研究院 A kind of preparation method of high-strength aluminum alloy conductive material
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CN110669951A (en) * 2019-10-31 2020-01-10 武汉电缆有限公司 High-elongation hard aluminum wire for overhead transmission conductor and preparation method thereof

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CN104438425A (en) * 2013-02-27 2015-03-25 滁州华尊电气科技有限公司 Method for preparing buses for electrical engineering through taking high-quality aluminum ingots as raw material
CN104438425B (en) * 2013-02-27 2017-02-08 国网山东省电力公司菏泽供电公司 Method for preparing buses for electrical engineering through taking high-quality aluminum ingots as raw material
CN104485152A (en) * 2014-12-03 2015-04-01 浙江东晟新材料有限公司 Aluminum alloy conductor and production process thereof
CN105989924A (en) * 2015-02-11 2016-10-05 国家电网公司 Bare conductor possessing super hydrophobicity
CN105989923A (en) * 2015-02-11 2016-10-05 国家电网公司 Anti-icing high voltage wire
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CN104805334A (en) * 2015-05-13 2015-07-29 江苏亨通电力特种导线有限公司 Moderate-intensity high-conductivity aluminium alloy material
CN104805335A (en) * 2015-05-13 2015-07-29 江苏亨通电力特种导线有限公司 Low-resistivity aluminum alloy rod
CN105088035A (en) * 2015-07-30 2015-11-25 中南大学 High-conductivity moderate-strength non-thermal processing type aluminum alloy conductor material and manufacturing method
CN105441736B (en) * 2015-11-17 2017-08-01 国网河南省电力公司周口供电公司 A kind of super-pressure specific complex aluminium alloy conductor
CN105441736A (en) * 2015-11-17 2016-03-30 国网河南省电力公司周口供电公司 Composite aluminum-alloy conductor special used for ultrahigh pressure
CN105779826A (en) * 2016-05-11 2016-07-20 山东阳谷电缆集团有限公司 Aluminum alloy rod and preparing method thereof as well as preparing method of aluminum alloy wire
CN105976890A (en) * 2016-06-22 2016-09-28 远东电缆有限公司 Manufacturing method of overhead insulated cable with medium-strength aluminum alloy conductor
CN106498199A (en) * 2016-11-02 2017-03-15 昆明冶金研究院 A kind of preparation method of high-strength aluminum alloy conductive material
CN106498199B (en) * 2016-11-02 2018-06-19 昆明冶金研究院 A kind of production method of high-strength aluminum alloy conductive material
CN106947891A (en) * 2017-05-12 2017-07-14 江苏亨通电力特种导线有限公司 The high-temperature alloy wire rod of high conductivity
CN108411170A (en) * 2018-04-11 2018-08-17 周天国 A kind of preparation method of high-magnesium aluminum alloy welding wire
CN108754244A (en) * 2018-06-19 2018-11-06 江苏亨通电力特种导线有限公司 Strength aluminium alloy line and preparation method thereof in nonheat-treatable
CN110669951A (en) * 2019-10-31 2020-01-10 武汉电缆有限公司 High-elongation hard aluminum wire for overhead transmission conductor and preparation method thereof

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