CN105761833A - Diameter expansion lead - Google Patents
Diameter expansion lead Download PDFInfo
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- CN105761833A CN105761833A CN201610262172.5A CN201610262172A CN105761833A CN 105761833 A CN105761833 A CN 105761833A CN 201610262172 A CN201610262172 A CN 201610262172A CN 105761833 A CN105761833 A CN 105761833A
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- carbon fiber
- conductor
- aluminium alloy
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- alloy
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/06—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/04—Light metals
- C22C49/06—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
Abstract
The invention belongs to the electric power material field and discloses a diameter expansion lead. The lead comprises an aluminum pipe. An outer side of the aluminum pipe is wrapped with a conductor layer formed through twisting a plurality of aluminum alloy conductors. A method of preparing the aluminum alloy conductors comprises the following steps of step1) calcining; step2) preparing a modification carbon fiber; step3) smelting and stirring; and step4) carrying out cast rolling and wire drawing. By using the diameter expansion lead, a diameter is enlarged; weight is mitigated; a lead material is saved and enterprise cost is reduced.
Description
Technical field
The invention belongs to electric power Material Field, be specifically related to a kind of expanded diameter conductor.
Background technology
Expanded diameter conductor is by enlarged-diameter, save conductor material, and make the external diameter of conductor and surface can meet transmission of electricity and the corona requirement of circuit, greatly reduce wire gross weight and wire division radical, decrease steel tower load and construction weight, thus significantly reducing track investment.Current expanded diameter conductor mainly takes out strand formula expanded diameter conductor and interior tubular type expanded diameter conductor.At present in this series products domestic, mostly adopt galvanized flexible tube as support, outsourcing aluminum-alloy conductor material, the effectiveness comparison of enlarged diameter is good, but the research with regard to aluminum current alloy conductive material, although achieving more achievement, develop some novel aluminium alloy conductors, but in actual production, the thermostability of aluminium conductor, tensile strength and conductivity are conflict bodies, want under the tensile strength improving aluminum conductor and the premise ensureing qualified conductivity, it is thus achieved that preferably heat resistance, the alloy species added and processing technique certainly will be had higher requirement.The problems referred to above greatly limit the promotion and application of expanded hollow conductor.
Summary of the invention
In order to solve prior art expanded diameter conductor required for possess the advantages such as light weight, high mechanical properties, high conductivity, and heat-and corrosion-resistant performance, being in that of the present invention provides a kind of novel expanded diameter conductor.
In order to solve above-mentioned technical problem, technical scheme is as follows:
A kind of expanded diameter conductor, including aluminum pipe, wraps up the conductor layer that many aluminium alloy conductors are twisted into outside described aluminum pipe；
Described aluminium alloy conductor is prepared as follows and obtains:
Step 1) is calcined: takes graphite and puts in crucible, is placed in Muffle furnace and calcines, and under the protection of nitrogen, calcines 3min in 700-800 DEG C, takes out, be ground into Powdered, obtain material 1；
Step 2) prepare modified carbon fiber: material 1, carbon fiber, nano silicon and nano aluminium oxide are added in high speed agitator successively, 1000 turns/min stirs 5min, then 100 DEG C it are preheating to, stand 5min, it is immersed in again in bisphenol A type epoxy resin, pull it by figuration die head with the form of strand and shred, obtain modified carbon fiber；Wherein, the mass ratio of material 1, carbon fiber, nano silicon, nano aluminium oxide and bisphenol A type epoxy resin is 5-8:20-30:1-2:1-2:30-50；
Step 3) melting and stirring: aluminum is incubated at 600 DEG C 30min, it is warming up to 700 DEG C, it is subsequently adding germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium, carry out melting and form aluminium alloy, smelting time is 10min, then heats to 740 DEG C, then is put into by modified carbon fiber in aluminium alloy, adopting magnetic stirrer, mixing time is 8 minutes simultaneously；Insulation, stands and obtains material 2 in 3 minutes；Wherein, the mass ratio of aluminum, germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium and modified carbon fiber is 200-300:1-2:1-2:1-2:1-2:1-2:1-2:2-3:3-5:4-7:4-7:7-10:35-55;
Step 4) casting and wire drawing: material 2 injects crystallizer and carries out continuous casting and rolling, the temperature controlling strand entrance milling train is 500 DEG C-560 DEG C, and milling train exit rod of metal alloy temperature is 300 DEG C-320 DEG C；Rod of metal alloy obtains alloy wire through wire drawing；It is annealed alloy wire processing, annealing temperature 350 DEG C, annealing time 20 minutes, natural cooling, obtains aluminium alloy conductor.
Preferably, the particle diameter of nano silicon and nano aluminium oxide is 100-300nm.
The beneficial effect that the present invention obtains specifically includes that
Expanded diameter conductor of the present invention, by enlarged-diameter, alleviates weight, saves conductor material, reduces entreprise cost；
The aluminium alloy conductor that the present invention prepares possesses high conductivity, excellent mechanical property, heat-and corrosion-resistant performance, adopts modified carbon fiber structure simultaneously, alleviates alloy mass；
Middle rare earth metal of the present invention improves the organizational structure of crystal in aluminum alloy materials, improves processing characteristics and the decay resistance of aluminium alloy；
Carbon fiber of the present invention has modifiied and has modified, and improves the operating temperature of wire stylet, it is ensured that conductivity, alleviates wire stylet weight, wear-resistant endurance, and the compatibility with alloy material is better；
Alloy material compatibility of the present invention is reasonable, preparation technology simple possible, by controlling technological parameter, improves the stress effect adverse effect to conductor tissue so that the flex endurant fatigue properties of aluminium alloy conductor improve；
Aluminium alloy conductor heat-and corrosion-resistant performance of the present invention is good, and long service life has wide range of applications.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme in the application, below in conjunction with the application specific embodiment, the present invention is carried out clearly, is fully described by, it is clear that, described embodiment is only some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of protection of the invention.
Embodiment 1
A kind of expanded diameter conductor, including aluminum pipe, wraps up the conductor layer that many aluminium alloy conductors are twisted into outside described aluminum pipe；
Described aluminium alloy conductor is prepared as follows and obtains:
1) take graphite and put in crucible, be placed in Muffle furnace and calcine, under the protection of nitrogen, calcine 3min in 700 DEG C, take out, be ground into Powdered, obtain material 1；
2) material 1, carbon fiber, nano silicon and nano aluminium oxide are added in high speed agitator successively, 1000 turns/min stirs 5min, then 100 DEG C it are preheating to, stand 5min, it is immersed in again in bisphenol A type epoxy resin, pull it by figuration die head with the form of strand and shred, obtain modified carbon fiber；Wherein, the mass ratio of material 1, carbon fiber, nano silicon, nano aluminium oxide and bisphenol A type epoxy resin is 5:20:1:1:30；
3) aluminum is incubated at 600 DEG C 30min, it is warming up to 700 DEG C, it is subsequently adding germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium, carry out melting and form aluminium alloy, smelting time is 10min, then heats to 740 DEG C, then is put into by modified carbon fiber in aluminium alloy, adopting magnetic stirrer, mixing time is 8 minutes simultaneously；Insulation, stands and obtains material 2 in 3 minutes；Wherein, the mass ratio of aluminum, germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium and modified carbon fiber is 200:1:1:1:1:1:1:2:3:4:4:7:35;
4) material 2 injecting crystallizer and carries out continuous casting and rolling, the temperature controlling strand entrance milling train is 500 DEG C, and milling train exit rod of metal alloy temperature is 300 DEG C；Rod of metal alloy obtains alloy wire through wire drawing；It is annealed alloy wire processing, annealing temperature 350 DEG C, annealing time 20 minutes, natural cooling, obtains aluminium alloy conductor.
Embodiment 2
A kind of expanded diameter conductor, including aluminum pipe, wraps up the conductor layer that many aluminium alloy conductors are twisted into outside described aluminum pipe；
Described aluminium alloy conductor is prepared as follows and obtains:
1) take graphite and put in crucible, be placed in Muffle furnace and calcine, under the protection of nitrogen, calcine 3min in 700 DEG C, take out, be ground into Powdered, obtain material 1；
2) material 1, carbon fiber, nano silicon and nano aluminium oxide are added in high speed agitator successively, 1000 turns/min stirs 5min, then 100 DEG C it are preheating to, stand 5min, it is immersed in again in bisphenol A type epoxy resin, pull it by figuration die head with the form of strand and shred, obtain modified carbon fiber；Wherein, the mass ratio of material 1, carbon fiber, nano silicon, nano aluminium oxide and bisphenol A type epoxy resin is 8:30:2:2:50；
3) aluminum is incubated at 600 DEG C 30min, it is warming up to 700 DEG C, it is subsequently adding germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium, carry out melting and form aluminium alloy, smelting time is 10min, then heats to 740 DEG C, then is put into by modified carbon fiber in aluminium alloy, adopting magnetic stirrer, mixing time is 8 minutes simultaneously；Insulation, stands and obtains material 2 in 3 minutes；Wherein, the mass ratio of aluminum, germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium and modified carbon fiber is 300:2:2:2:2:2:2:3:5:7:7:10:55;
4) material 2 injecting crystallizer and carries out continuous casting and rolling, the temperature controlling strand entrance milling train is 560 DEG C, and milling train exit rod of metal alloy temperature is 320 DEG C；Rod of metal alloy obtains alloy wire through wire drawing；It is annealed alloy wire processing, annealing temperature 350 DEG C, annealing time 20 minutes, natural cooling, obtains aluminium alloy conductor.
Embodiment 3
The performance test of aluminium alloy conductor prepared by the present invention:
1. conductivity test:
The aluminium alloy conductor prepared by embodiment 1-2 carries out conductivity experiment, detects according to GB GB/T12966-2008 " aluminium alloy conductivity test method ", and its result is as shown in table 1:
Table 1
2. mechanical test:
The aluminium alloy conductor prepared by embodiment 1-2 carries out tensile tests at room, makes standard tensile specimen according to GB GB/T228-2002, is 0.5mm/min at draw speed, 30KN tensile testing machine stretches, measurement length is 50mm, measures tensile strength, elongation percentage, and its result is as shown in table 2:
Table 2
| Group | Tensile strength (MPa) | Elongation percentage (%) |
| Embodiment 1 | 179 | 16.3 |
| Embodiment 2 | 182 | 16.8 |
3. heat resisting corrosion-proof corrosion test:
Aluminium alloy conductor embodiment 1 prepared carries out heat resistance test, is incubated 240 hours with 200 DEG C, and tensile strength retention is 98.3%, and elongation percentage conservation rate is 96.7%, and conductivity maintains 98.8%.
Aluminium alloy conductor embodiment 1 prepared carries out decay resistance test, is placed in the sodium chloride solution 240 hours of 10%, and tensile strength retention is 99.4%, and elongation percentage conservation rate is 98.9%, and conductivity maintains 99.5%
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that these descriptions are all illustrative of, is not limiting the scope of the invention.The present invention can be made various variants and modifications according to the spirit of the present invention and principle by those skilled in the art, and these variants and modifications are also within the scope of the invention.
Claims (3)
1. an expanded diameter conductor, it includes aluminum pipe, wraps up the conductor layer that many aluminium alloy conductors are twisted into outside described aluminum pipe.
2. expanded diameter conductor according to claim 1, it is characterised in that described aluminium alloy conductor is prepared as follows and obtains: step 1) is calcined, step 2) prepare modified carbon fiber, step 3) melting and stirring, step 4) casting and wire drawing.
3. expanded diameter conductor according to claim 2, it is characterised in that described aluminium alloy conductor is prepared as follows and obtains:
Step 1) is calcined: takes graphite and puts in crucible, is placed in Muffle furnace and calcines, and under the protection of nitrogen, calcines 3min in 700-800 DEG C, takes out, be ground into Powdered, obtain material 1；
Step 2) prepare modified carbon fiber: material 1, carbon fiber, nano silicon and nano aluminium oxide are added in high speed agitator successively, 1000 turns/min stirs 5min, then 100 DEG C it are preheating to, stand 5min, it is immersed in again in bisphenol A type epoxy resin, pull it by figuration die head with the form of strand and shred, obtain modified carbon fiber；Wherein, the mass ratio of material 1, carbon fiber, nano silicon, nano aluminium oxide and bisphenol A type epoxy resin is 5-8:20-30:1-2:1-2:30-50；
Step 3) melting and stirring: aluminum is incubated at 600 DEG C 30min, it is warming up to 700 DEG C, it is subsequently adding germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium, carry out melting and form aluminium alloy, smelting time is 10min, then heats to 740 DEG C, then is put into by modified carbon fiber in aluminium alloy, adopting magnetic stirrer, mixing time is 8 minutes simultaneously；Insulation, stands and obtains material 2 in 3 minutes；Wherein, the mass ratio of aluminum, germanium, tantalum, yttrium, rhenium, cerium, vanadium, molybdenum, zinc, manganese, chromium, titanium and modified carbon fiber is 200-300:1-2:1-2:1-2:1-2:1-2:1-2:2-3:3-5:4-7:4-7:7-10:35-55;
Step 4) casting and wire drawing: material 2 injects crystallizer and carries out continuous casting and rolling, the temperature controlling strand entrance milling train is 500 DEG C-560 DEG C, and milling train exit rod of metal alloy temperature is 300 DEG C-320 DEG C；Rod of metal alloy obtains alloy wire through wire drawing；It is annealed alloy wire processing, annealing temperature 350 DEG C, annealing time 20 minutes, natural cooling, obtains aluminium alloy conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262172.5A CN105761833A (en) | 2016-04-25 | 2016-04-25 | Diameter expansion lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262172.5A CN105761833A (en) | 2016-04-25 | 2016-04-25 | Diameter expansion lead |
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| CN105761833A true CN105761833A (en) | 2016-07-13 |
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| CN201610262172.5A Pending CN105761833A (en) | 2016-04-25 | 2016-04-25 | Diameter expansion lead |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682872A (en) * | 2011-03-18 | 2012-09-19 | 上海电缆研究所 | Semihard aluminum wire, overhead wire and preparation method of semihard aluminum wire |
| CN102915787A (en) * | 2011-08-01 | 2013-02-06 | 中国电力科学研究院 | Expanded conductor |
| CN103343302A (en) * | 2013-07-26 | 2013-10-09 | 安徽和电普华电气有限公司 | Carbon fiber composite aluminum conductor and preparation method thereof |
| CN203520993U (en) * | 2013-09-09 | 2014-04-02 | 河南通达电缆股份有限公司 | Twisted aluminum tube set supporting hollow expanded diameter conductor |
| CN204010725U (en) * | 2014-07-11 | 2014-12-10 | 河南通达电缆股份有限公司 | The hollow expanded diameter conductor that aluminium alloy interlocking bellows supports |
| CN104538107A (en) * | 2015-01-21 | 2015-04-22 | 常州艾邦机械科技有限公司 | Equipment and process for manufacturing power transmission conductor with carbon fiber core |
-
2016
- 2016-04-25 CN CN201610262172.5A patent/CN105761833A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682872A (en) * | 2011-03-18 | 2012-09-19 | 上海电缆研究所 | Semihard aluminum wire, overhead wire and preparation method of semihard aluminum wire |
| CN102915787A (en) * | 2011-08-01 | 2013-02-06 | 中国电力科学研究院 | Expanded conductor |
| CN103343302A (en) * | 2013-07-26 | 2013-10-09 | 安徽和电普华电气有限公司 | Carbon fiber composite aluminum conductor and preparation method thereof |
| CN203520993U (en) * | 2013-09-09 | 2014-04-02 | 河南通达电缆股份有限公司 | Twisted aluminum tube set supporting hollow expanded diameter conductor |
| CN204010725U (en) * | 2014-07-11 | 2014-12-10 | 河南通达电缆股份有限公司 | The hollow expanded diameter conductor that aluminium alloy interlocking bellows supports |
| CN104538107A (en) * | 2015-01-21 | 2015-04-22 | 常州艾邦机械科技有限公司 | Equipment and process for manufacturing power transmission conductor with carbon fiber core |
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Application publication date: 20160713 |
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