CN109182794A - The cable aluminium alloy of high conductivity - Google Patents
The cable aluminium alloy of high conductivity Download PDFInfo
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- CN109182794A CN109182794A CN201810998392.3A CN201810998392A CN109182794A CN 109182794 A CN109182794 A CN 109182794A CN 201810998392 A CN201810998392 A CN 201810998392A CN 109182794 A CN109182794 A CN 109182794A
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- powder
- aluminium alloy
- cable
- high conductivity
- modified graphene
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- 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
-
- 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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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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
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Conductive Materials (AREA)
Abstract
The invention proposes a kind of cable aluminium alloys of high conductivity, component Cu 0.03~0.09%, Ca 0.2~0.8%, Ga 0.8~1.6%, modified graphene 0.2~0.4% including following weight percent, and surplus is Al and impurity；The modified graphene is mainly by nano-TiO2, Fe powder, lanthana, zinc powder and graphene powder be prepared.Not only resistivity is low for the aluminium alloy, 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 cable aluminium alloy of high conductivity.
Background technique
Currently, cable industry is the second largest industry that China is only second to automobile industry, and worldwide, Chinese cable
The gross output value be more than the U.S., become the first big countries producing electric wires and cables in the world.Along with the increasing continuously and healthily of China's economic
The continuous expansion of the industry sizes such as long and power industry, data communication industry, urban track traffic industry, the demand of cable also will
It increases rapidly, there are also huge development potentialities for the following wire and cable industry.
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.
Summary of the invention
The present invention proposes a kind of cable aluminium alloy of high conductivity, and not only resistivity is low for the aluminium alloy, but also creep resistant
Performance is good with anti-fatigue performance.
The technical scheme of the present invention is realized as follows:
A kind of cable aluminium alloy of high conductivity, the component including following weight percent:
Cu 0.03~0.09%, Ca 0.2~0.8%, Ga 0.8~1.6%, modified graphene 0.2~0.4%, surplus
For Al and impurity；The modified graphene is mainly by nano-TiO2, Fe powder, lanthana, zinc powder and graphene powder be prepared.
Preferably, the preparation method of the modified graphene, comprising the following steps:
1) by nano-TiO2It is put into three-dimensional material mixer with Fe powder, is mixed 2~3 hours under room temperature and obtain mixed powder A；
2) lanthana and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 8~12 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 80~85:
The mass ratio of 5~10:1 is put into three-dimensional material mixer, obtains modified graphene after mixing 12~15 hours under room temperature.
Preferably, the nano-TiO2Mass ratio with Fe powder is 10~16:1.
Preferably, the mass ratio of the lanthana and zinc powder is 1:4~8.
Graphene belongs to two-dimensional material, possesses excellent electric conductivity.The present invention is by graphene powder and nano-TiO2、Fe
Powder, lanthana, 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.
The preparation method of the cable aluminium alloy of high conductivity of the present invention, includes the following steps:
1) al alloy component being proportionally added into other than removing modified graphene mentioned in the present invention, at 700~800 DEG C
Under the conditions of carry out smelting technology, blow powder machine using nitrogen and modified graphene be blown into molten liquid, then in 660~690 DEG C of items
It is cast under part, obtains ingot casting；
2) ingot casting for obtaining step 1) 2~6h of solution treatment within the scope of 450~520 DEG C, then at 30~60 DEG C
Rapid quenching in cooling water；
3) ingot casting for obtaining step 2) 6~10h of ageing treatment within the scope of 160~240 DEG C, then it is warming up to 300~400
DEG C, it is rolled into rod of metal alloy；
4) within the scope of 280~300 DEG C, the rod of metal alloy that step 3) is rolled into carries out drawing processing, makes reduced cross-sectional area
Into step c, the 50~60% of cross-sectional area, obtain aluminium alloy wire；
5) under the conditions of forming the temperature of aluminium alloy core, the aluminium alloy wire that step 4) is obtained carries out drawing processing again,
Make 80~100% of aluminium alloy wire sectional area in reduced cross-sectional area to step 4), obtains aluminium alloy conductor monofilament；
6) aluminium alloy conductor monofilament for obtaining several steps 5) is twisted, carries out for the first time under the conditions of 230~320 DEG C
It is heat-treated 3~6h, then 8~14h will be heat-treated again under the conditions of 300~400 DEG C, and obtain aluminium alloy conductor core.
Beneficial effects of the present invention:
1, the cable of high conductivity of the present invention with aluminium alloy using resistivity low, modified graphene of excellent electric conductivity to aluminium
Alloy is modified, and the anti-fatigue performance of rear aluminium alloy and creep-resistant property all improve after tested, while resistivity has
It is decreased obviously.The cable of high conductivity of the present invention is more applicable for the transmission of electric power with the relatively traditional aluminium alloy cable of aluminium alloy.
2, the resistivity of the cable aluminium alloy of high conductivity of the present invention is less than or equal to 0.02668 Ω mm2/ m, fracture are stretched
Long rate is more than or equal to 15%, under the conditions of 120 DEG C of temperature, 120MPa compression, 1~100 hour average creep speed is less than etc.
In 4.0 × 10-2(%/h), 90 degree of tired bending number of times are more than or equal to 30 times.
Specific embodiment
Embodiment 1
A kind of cable aluminium alloy of high conductivity, the component including following weight percent:
Cu 0.06%, Ca 0.5%, Ga 1.3%, modified graphene 0.3%, surplus are Al and impurity.
The preparation method of modified graphene, comprising the following steps:
1) by nano-TiO2It is put into three-dimensional material mixer with Fe powder, is mixed 2 hours under room temperature and obtain mixed powder A；It is described
Nano-TiO2Mass ratio with Fe powder is 10:1.
2) lanthana 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 lanthana and zinc powder is 1:6.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 80:8:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 13 hours under room temperature.
Embodiment 2
A kind of cable aluminium alloy of high conductivity, the component including following weight percent:
Cu 0.03%, Ca 0.2%, Ga 0.8%, modified graphene 0.2%, surplus are Al and impurity.
The preparation method of modified graphene, comprising the following steps:
1) by nano-TiO2It is put into three-dimensional material mixer with Fe powder, is mixed 3 hours under room temperature and obtain mixed powder A；It is described
Nano-TiO2Mass ratio with Fe powder is 13:1.
2) lanthana and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 8 hours under room temperature, it is spare；
The mass ratio of the lanthana and zinc powder is 1:4.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 83:5:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 12 hours under room temperature.
Embodiment 3
A kind of cable aluminium alloy of high conductivity, the component including following weight percent:
Cu 0.09%, Ca 0.6%, Ga 1.4%, modified graphene 0.4%, surplus are Al and impurity.
The preparation method of modified graphene, comprising the following steps:
1) by nano-TiO2It is put into three-dimensional material mixer with Fe powder, is mixed 2 hours under room temperature and obtain mixed powder A；It is described
Nano-TiO2Mass ratio with Fe powder is 16:1.
2) lanthana 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 lanthana and zinc powder is 1:8.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 85:6:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 13 hours under room temperature.
Embodiment 4
A kind of cable aluminium alloy of high conductivity, the component including following weight percent:
Cu 0.04%, Ca 0.8%, Ga 1.6%, modified graphene 0.2%, surplus are Al and impurity.
The preparation method of modified graphene, comprising the following steps:
1) by nano-TiO2It is put into three-dimensional material mixer with Fe powder, is mixed 3 hours under room temperature and obtain mixed powder A；It is described
Nano-TiO2Mass ratio with Fe powder is 12:1.
2) lanthana 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 lanthana and zinc powder is 1:6.
3) by the mixture A of step 1), step 2) mixture B, graphene powder and polyacrylamide according to 80:10:1
Mass ratio be put into three-dimensional material mixer, obtain modified graphene after mixing 15 hours under room temperature.
Test example
The cable for the high conductivity that above-described embodiment 1~4 is prepared carries out resistance according to GB/T 3956 with aluminium alloy
Rate experiment carries out extension at break experiment according to GB/T228-2002, carries out under the conditions of 120 DEG C of temperature, 120MPa compression compacted
Become experiment (1~100 hour), 90 degree of fatigue bending experiments, the test of 400h corrosion resistance；By test side as defined in MT818.1
The cable of method, the high conductivity that Examples 1 to 4 is prepared carries out 9000 bending resistance experiments with aluminium alloy, as a result
Referring to table 1.
1 aluminium alloy capability parameter list of table
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 (4)
1. a kind of cable aluminium alloy of high conductivity, which is characterized in that the component including following weight percent:
Cu 0.03~0.09%, Ca 0.2~0.8%, Ga 0.8~1.6%, modified graphene 0.2~0.4%, surplus Al
And impurity；The modified graphene is mainly by nano-TiO2, Fe powder, lanthana, zinc powder and graphene powder be prepared.
2. the cable aluminium alloy of high conductivity according to claim 1, which is characterized in that the system of the modified graphene
Preparation Method, comprising the following steps:
1) by nano-TiO2It is put into three-dimensional material mixer with Fe powder, is mixed 2~3 hours under room temperature and obtain mixed powder A；
2) lanthana and zinc powder are put into three-dimensional material mixer, obtain mixed powder B after mixing 8~12 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 80~85:5~
The mass ratio of 10:1 is put into three-dimensional material mixer, obtains modified graphene after mixing 12~15 hours under room temperature.
3. the cable aluminium alloy of high conductivity according to claim 2, which is characterized in that the nano-TiO2With Fe powder
Mass ratio be 10~16:1.
4. the cable aluminium alloy of high conductivity according to claim 2, which is characterized in that the lanthana and zinc powder
Mass ratio is 1:4~8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998392.3A CN109182794A (en) | 2018-08-29 | 2018-08-29 | The cable aluminium alloy of high conductivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998392.3A CN109182794A (en) | 2018-08-29 | 2018-08-29 | The cable aluminium alloy of high conductivity |
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| Publication Number | Publication Date |
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| CN109182794A true CN109182794A (en) | 2019-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810998392.3A Pending CN109182794A (en) | 2018-08-29 | 2018-08-29 | The cable aluminium alloy of high conductivity |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294093A (en) * | 2014-09-15 | 2015-01-21 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg aluminum alloy for cables for coal mines, aluminum alloy cable and preparation method of 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 CN201810998392.3A patent/CN109182794A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294093A (en) * | 2014-09-15 | 2015-01-21 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg aluminum alloy for cables for coal mines, aluminum alloy cable and preparation method of 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: 20190111 |