CN109136659A - Aluminum alloy materials for power cable - Google Patents
Aluminum alloy materials for power cable Download PDFInfo
- Publication number
- CN109136659A CN109136659A CN201810997489.2A CN201810997489A CN109136659A CN 109136659 A CN109136659 A CN 109136659A CN 201810997489 A CN201810997489 A CN 201810997489A CN 109136659 A CN109136659 A CN 109136659A
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- powder
- aluminum alloy
- power cable
- alloy materials
- modified graphene
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Classifications
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- 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
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1005—Pretreatment of the non-metallic additives
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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 non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
Abstract
The invention proposes a kind of aluminum alloy materials for power cable, the component including following weight percent: Cu 0.01~0.03%, Mg 0.002~0.006%, Ru 0.003~0.009%, In 0.001~0.02%, Be 0.005~0.012%, Bi 0.002~0.01%, Sr 0.001~0.005%, modified graphene 0.16~0.32%, RE 0.06~2.3%, surplus are Al and impurity；The modified graphene is mainly prepared by nano-nickel oxide, silver powder, bismuth oxide, zinc powder and graphene powder.Not only electric conductivity is high for the aluminum alloy materials for power cable, but also creep-resistant property and anti-fatigue performance are good.
Description
Technical field
The invention belongs to technical field of aluminum alloy technology, and in particular to a kind of aluminum alloy materials for power cable.
Background technique
Recently as national every rapid development of capital construction and the progress of information technology, removed in each engineering project
Outside the demand for dispensing electric power, to the also more and more with demand is built of information engineering.It lives in quotient, factory, school, road, city are matched
The engineering projects such as set engineering, airport and rail traffic all propose more requirements to the information transmission system, to Internet, TV
Network, local area network, for the data communication networks such as telecommunication net, the information transmission system is all essential part.Traditional
All it is that electric power and communication are separately designed into construction in electric power, the construction of network engineering Project design, that is, is divided into heavy current engineering and light current
Engineering.
It is generally known that the copper resource reserves relative deficiency in China, relies heavily on import, therefore find copper cabling
Substitute become more and more important instantly international situation and resource are more nervous.And aluminium alloy cable is since appearance
Just to there is the advantages parts such as at low cost, light-weight, corrosion resistance is strong, security performance is high instead of conventional copper cable.Although at present
The market share that copper wire cable is still in the great majority, but this can not cover the trend of aluminium alloy cable market share rising.
However aluminium alloy cable still there are resistivity it is high, current-carrying capacity is small, heating temperature is high the deficiencies of.In same sectional area
In the case where, the conductivity of aluminium alloy is the 61.8% of the most frequently used reference material copper IACS, and current-carrying capacity is the 79% of copper.Therefore,
The resistivity for further decreasing aluminium alloy cable becomes urgency instantly.Stone big science and technology petrochemical industry Co., Ltd Jia Ke in Shandong is in " section
Skill technical application " entitled " aluminium alloy cable, aluminium cable, copper cable techno-economic comparison " has been delivered, describe company A
Resistance value is 0.8480, that is to say, that this cable sacrifices aluminium by adding a small amount of metallic elements such as copper, iron, magnesium in fine aluminium
Electric conductivity, exchange the raising of its mechanical performance for.In addition, aluminum-alloy conductor material in the prior art, in electrical property, corrosion-resistant
Performance and mechanical performance etc. are more excellent, but in terms of anti-fatigue performance or poor, to be easy to appear quality
Problem influences the service life of aluminum alloy materials or brings security risk, therefore, aluminium alloy power cable comprehensive performance still compared with
Difference.
Summary of the invention
The present invention proposes a kind of aluminum alloy materials for power cable, this is used for the aluminum alloy materials of power cable not only
Electric conductivity is high, and creep-resistant property and anti-fatigue performance are good.
The technical scheme of the present invention is realized as follows:
A kind of aluminum alloy materials for power cable, the component including following weight percent:
Cu 0.01~0.03%, Mg 0.002~0.006%, Ru 0.003~0.009%, In 0.001~0.02%,
Be 0.005~0.012%, Bi 0.002~0.01%, Sr 0.001~0.005%, modified graphene 0.16~0.32%,
RE 0.06~2.3%, surplus are Al and impurity；The modified graphene is mainly by nano-nickel oxide, silver powder, bismuth oxide, zinc powder
It is prepared with graphene powder.
Preferably, the preparation method of the modified graphene, comprising the following steps:
1) nano-nickel oxide and silver powder are put into three-dimensional material mixer, are mixed 0.6~1.2 hour under room temperature and obtains mixed powder
Expect A；
2) bismuth oxide and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 10~14 hours under room temperature,
It is spare；
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 70~80:
The mass ratio of 7~13:1 is put into three-dimensional material mixer, obtains modified graphene after mixing 12~15 hours under room temperature.
Preferably, the mass ratio of the nano-nickel oxide and silver powder is 8~13:1.
Preferably, the mass ratio of the bismuth oxide and zinc powder is 1:4~8.
Preferably, the RE is the mixture of Tm, Ce, Pr and Nd.
Graphene belongs to two-dimensional material, possesses excellent electric conductivity.The present invention is by graphene powder and nano-nickel oxide, silver
Powder, bismuth oxide, zinc powder are mixed, and in the presence of polyacrylamide, before meeting raising aluminium alloy cable conductivity
It puts, improves the creep-resistant property and anti-fatigue performance of aluminium alloy cable.Fe can also significantly improve the high-temperature creep resistance of alloy
Can, and improve the anti-fatigue performance of alloy；Cu can also be improved high temperature creep property and anti-fatigue performance, and have certain
Solid solution strengthening effect, the CuAl of Precipitation2There is apparent ageing strengthening effect；A small amount of Mg is added in aluminium alloy, it can be real
Now refine cast sturcture.
Nano-nickel oxide and bismuth oxide participate in the modification of graphene, can not only play the role of refining crystal grain, additionally it is possible to
Promote graphene to disperse in the alloy, while improving the electric conductivity of alloy, can cooperate with rare earth element and improve aluminium alloy
Creep-resistant property.
Feature addition element of strontium (Sr) element as complex compound, is capable of forming Al in the melt7Sr8、Al4Sr3、
AlSr2And AlSr3Etc. a variety of alloying elements, High-Temperature Strengthening can be played the role of, improve high temperature creep property.It is closed secondly, aluminium is added in Sr
Jin Zhong can prevent aluminium alloy high temperature from cracking in casting, avoid occurring unnecessary influence in casting, reduce process costs, mention
High disposable processing success rate.
The RuAl that ruthenium (Ru) and matrix act on4With fine aluminium current potential having the same, alloy can effectively improve
Corrosion resistance and weldability；Ru has as High-Temperature Strengthening phase and improves recrystallization temperature simultaneously, inhibits the work of recrystallization roughening
With can be realized solution strengthening to aluminium alloy, supplement is strengthened and improve the heat resistance of aluminium alloy.
Feature addition element of the indium (In) as complex alloys, forms Al in alloy melt12In9、Al7In8Etc. a variety of
Complex compound, having improves alloy in melting, casting, welding, rolling, forging and stamping and squeezes the problem of oxidation in heating process.
Being formed under the conditions of indium, ruthenium and bismuth (Bi) elements melt simultaneously can be evenly dispersed into aluminium alloy, improves other elements and aluminium member
The combination suitability of element, to improve the antifatigue and creep-resistant property of aluminium alloy.
Beryllium (Be) forms α, β dispersivity High-Temperature Strengthening phase in the alloy, can prevent oxidation, scaling loss and the suction of alloying element
Gas improves the smelting quality of alloy and the consistency of surface film oxide.Be can also make impurity iron become pellet shape from needle-shaped, can prevent
Sand-cast and model recoil when being only poured.Since Be has high affinity to oxygen and nitrogen, so it is high when melt deaerates
Effect, surface smoothness is preferable so as to obtaining, the premium casting that intensity is higher and ductility is improved.
Preparation method of the present invention for the aluminum alloy materials of power cable, includes the following steps:
1, in aluminum alloy materials be completely melt the tundish for metallic element water after, blowing powder machine using nitrogen will be modified
Graphene powder is blown into tundish；
2, tundish is used for the aluminum alloy materials of power cable i.e. at aluminium bar according to the cooling compacting chopping of common process
It can.
Beneficial effects of the present invention:
1, the present invention for power cable aluminum alloy materials using resistivity low, modified graphene pair of excellent electric conductivity
Aluminium alloy is modified, and the anti-fatigue performance of rear aluminium alloy and creep-resistant property all improve after tested, while resistivity
It decreased significantly.The relatively traditional aluminium alloy cable of the modified aluminum alloy materials for power cable of the present invention is more applicable for electric power
Transmission.
2, the present invention is more than or equal to 63.4%IACS for the conductivity of the aluminum alloy materials of power cable, and tensile strength is big
In being equal to 165MPa, elongation at break is more than or equal to 30%, under the conditions of 160 DEG C of temperature, 120MPa compression, 1~100 hour
Average creep speed is less than or equal to 4 × 10-2(%/h), 90 degree of tired bending number of times are more than or equal to 35 times.
Specific embodiment
Embodiment 1
A kind of aluminum alloy materials for power cable, the component including following weight percent:
Cu 0.02%, Mg 0.004%, Ru 0.005%, In 0.016%, Be 0.009%, Bi 0.007%, Sr
0.003%, modified graphene 0.25%, RE 0.16%, surplus are Al and impurity.RE is the mixture of Tm, Ce, Pr and Nd.
The preparation method of modified graphene, comprising the following steps:
1) nano-nickel oxide and silver powder are put into three-dimensional material mixer, are mixed 1 hour under room temperature and obtains mixed powder A；Institute
The mass ratio for stating nano-nickel oxide and silver powder is 11:1.
2) bismuth oxide and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 12 hours under room temperature, it is standby
With；The mass ratio of the bismuth oxide and zinc powder is 1:6.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 76:11:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 14 hours under room temperature.
Embodiment 2
A kind of aluminum alloy materials for power cable, the component including following weight percent:
Cu 0.01%, Mg 0.002%, Ru 0.009%, In 0.001%, Be 0.012%, Bi 0.002%, Sr
0.005%, modified graphene 0.16%, RE 0.1%, surplus are Al and impurity.RE is the mixture of Tm, Ce, Pr and Nd.
The preparation method of modified graphene, comprising the following steps:
1) nano-nickel oxide and silver powder are put into three-dimensional material mixer, are mixed 1.2 hours under room temperature and obtains mixed powder A；
The mass ratio of the nano-nickel oxide and silver powder is 8:1.
2) bismuth oxide and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 10 hours under room temperature, it is standby
With；The mass ratio of the bismuth oxide and zinc powder is 1:4.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 70:13:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 12 hours under room temperature.
Embodiment 3
A kind of aluminum alloy materials for power cable, the component including following weight percent:
Cu 0.03%, Mg 0.006%, Ru 0.003%, In 0.02%, Be 0.005%, Bi 0.01%, Sr
0.001%, modified graphene 0.32%, RE 0.06%, surplus are Al and impurity.RE is the mixture of Tm, Ce, Pr and Nd.
The preparation method of modified graphene, comprising the following steps:
1) nano-nickel oxide and silver powder are put into three-dimensional material mixer, are mixed 0.6 hour under room temperature and obtains mixed powder A；
The mass ratio of the nano-nickel oxide and silver powder is 13:1.
2) bismuth oxide and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 14 hours under room temperature, it is standby
With；The mass ratio of the bismuth oxide and zinc powder is 1:8.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 80:7:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 15 hours under room temperature.
Embodiment 4
A kind of aluminum alloy materials for power cable, the component including following weight percent:
Cu 0.01%, Mg 0.003%, Ru 0.006%, In 0.016%, Be 0.007%, Bi 0.008%, Sr
0.004%, modified graphene 0.18%, RE 0.06%, surplus are Al and impurity.RE is the mixture of Tm, Ce, Pr and Nd.
The preparation method of modified graphene, comprising the following steps:
1) nano-nickel oxide and silver powder are put into three-dimensional material mixer, are mixed 0.8 hour under room temperature and obtains mixed powder A；
The mass ratio of the nano-nickel oxide and silver powder is 10:1.
2) bismuth oxide and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 13 hours under room temperature, it is standby
With；The mass ratio of the bismuth oxide and zinc powder is 1:6.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 72:9:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 15 hours under room temperature.
Test example
The aluminum alloy materials for being used for power cable that above-described embodiment 1~4 is prepared are led according to GB/T 3956
Electric rate experiment, carries out extension at break experiment according to GB/T228-2002, carries out under the conditions of 160 DEG C of temperature, 120MPa compression
Creep test (1~100 hour), 90 degree of fatigue bending experiments, as a result referring to table 1.
Table 1 is used for the aluminum alloy materials performance parameter table of power cable
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of aluminum alloy materials for power cable, which is characterized in that the component including following weight percent:
Cu 0.01~0.03%, Mg 0.002~0.006%, Ru 0.003~0.009%, In 0.001~0.02%, Be
0.005~0.012%, Bi 0.002~0.01%, Sr 0.001~0.005%, modified graphene 0.16~0.32%, RE
0.06~2.3%, surplus is Al and impurity；The modified graphene mainly by nano-nickel oxide, silver powder, bismuth oxide, zinc powder with
Graphene powder is prepared.
2. the aluminum alloy materials according to claim 1 for power cable, which is characterized in that the modified graphene
Preparation method, comprising the following steps:
1) nano-nickel oxide and silver powder are put into three-dimensional material mixer, are mixed 0.6~1.2 hour under room temperature and obtains mixed powder A；
2) bismuth oxide and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 10~14 hours under room temperature, it is standby
With；
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 70~80:7~
The mass ratio of 13:1 is put into three-dimensional material mixer, obtains modified graphene after mixing 12~15 hours under room temperature.
3. the aluminum alloy materials according to claim 2 for power cable, which is characterized in that the nano-nickel oxide with
The mass ratio of silver powder is 8~13:1.
4. the aluminum alloy materials according to claim 2 for power cable, which is characterized in that the bismuth oxide and zinc powder
Mass ratio be 1:4~8.
5. the aluminum alloy materials according to claim 1 for power cable, which is characterized in that the RE is Tm, Ce, Pr
With the mixture of Nd.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997489.2A CN109136659A (en) | 2018-08-29 | 2018-08-29 | Aluminum alloy materials for power cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810997489.2A CN109136659A (en) | 2018-08-29 | 2018-08-29 | Aluminum alloy materials for power cable |
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| CN109136659A true CN109136659A (en) | 2019-01-04 |
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| CN201810997489.2A Pending CN109136659A (en) | 2018-08-29 | 2018-08-29 | Aluminum alloy materials for power cable |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294120A (en) * | 2014-09-15 | 2015-01-21 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Ag aluminum alloy for coal mine cable as well as aluminum alloy cable and preparation method of aluminum alloy cable |
| CN106531293A (en) * | 2016-12-29 | 2017-03-22 | 合肥开尔纳米能源科技股份有限公司 | Graphene modified aluminum alloy cable core and preparation method thereof |
| CN107099708A (en) * | 2017-04-21 | 2017-08-29 | 安徽南洋新材料科技股份有限公司 | A kind of graphene rare earth aluminium alloy height leads the preparation method of material |
| CN107119214A (en) * | 2017-04-19 | 2017-09-01 | 安徽固齐线路器材有限公司 | A kind of power cable Al-alloy material |
| CN107675028A (en) * | 2017-09-25 | 2018-02-09 | 广州埃米石墨烯投资管理有限公司 | A kind of single-layer graphene/aluminium composite material and preparation method thereof |
| CN107904459A (en) * | 2017-11-23 | 2018-04-13 | 国网河南省电力公司孟州市供电公司 | A kind of cable graphene high conductivity Al-alloy and preparation method thereof |
-
2018
- 2018-08-29 CN CN201810997489.2A patent/CN109136659A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294120A (en) * | 2014-09-15 | 2015-01-21 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Ag aluminum alloy for coal mine cable as well as aluminum alloy cable and preparation method of aluminum alloy cable |
| CN106531293A (en) * | 2016-12-29 | 2017-03-22 | 合肥开尔纳米能源科技股份有限公司 | Graphene modified aluminum alloy cable core and preparation method thereof |
| CN107119214A (en) * | 2017-04-19 | 2017-09-01 | 安徽固齐线路器材有限公司 | A kind of power cable Al-alloy material |
| CN107099708A (en) * | 2017-04-21 | 2017-08-29 | 安徽南洋新材料科技股份有限公司 | A kind of graphene rare earth aluminium alloy height leads the preparation method of material |
| CN107675028A (en) * | 2017-09-25 | 2018-02-09 | 广州埃米石墨烯投资管理有限公司 | A kind of single-layer graphene/aluminium composite material and preparation method thereof |
| CN107904459A (en) * | 2017-11-23 | 2018-04-13 | 国网河南省电力公司孟州市供电公司 | A kind of cable graphene high conductivity Al-alloy and preparation method thereof |
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Application publication date: 20190104 |
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