CN104264006A - Low-resistance aluminium-alloy conductor and preparation method thereof - Google Patents
Low-resistance aluminium-alloy conductor and preparation method thereof Download PDFInfo
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- CN104264006A CN104264006A CN201410506764.8A CN201410506764A CN104264006A CN 104264006 A CN104264006 A CN 104264006A CN 201410506764 A CN201410506764 A CN 201410506764A CN 104264006 A CN104264006 A CN 104264006A
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- aluminium alloy
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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
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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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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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
Abstract
The invention belongs to the field of conductors, and relates to a low-resistance aluminium-alloy conductor. The low-resistance aluminium-alloy conductor is composed of the following chemical compositions in percentage by weight: 0.2-0.6wt % of Os, 0.3-0.6wt % of Pd, 0.5-0.8wt % of Cr, 0.3-0.8wt % of Ni, 0.1-0.4wt % of Bi, and the balance of Al. The preparation method comprises the following steps: (1) carrying out high-temperature melting on an aluminium block in a vacuum melting furnace at a melting temperature of 1100 DEG C, and after the aluminium block is melted, adding Os, Pd, Cr, Ni, Bi and Al; (2) after the chemical compositions are added, stirring, and heating the temperature of the melting furnace to 1450 DEG C, and melting for 5h; (3) pouring the mixed aluminium-alloy material into an aluminium-alloy rod; and (4) carrying out high-temperature stretch processing on the aluminium-alloy rod by using a wire drawer, so that a low-resistance aluminium-alloy conductor is prepared.
Description
Technical field
The invention belongs to wire field, relate to a kind of aluminium alloy conductor and preparation method thereof, particularly relate to a kind of low-resistance aluminium alloy conductor and preparation method thereof.
Background technology
In power industry, the transmission of wire has very large impact to power industry.The material of wire and structure determine resistance sizes and the specific conductivity of wire.Larger resistance and lower specific conductivity limit the application of wire in power industry.Resistance is excessive, has larger loss, waste the energy to a certain extent in power transmission.
The classification of wire is more, has copper wires, aluminum wire etc.Wherein, aluminium alloy conductor has the advantages such as lightweight, cost is low, transmission speed is fast, obtains a large amount of uses.Along with the increasing of power consumption, the power consumption reduced in wire transmission process is very urgent, and therefore we need the resistance reducing aluminium alloy conductor, improve the efficiency of its transferring electric power resource.The patent No. is the preparation method that the patent document of CN201220553011.9 and CN200910264966.5 discloses relevant aluminium conductor, CN201220553011.9 discloses a kind of carbon fiber composite material core soft-type aluminium conductor, comprise by the stranded outer strand soft aluminum layer of the first aluminum steel, soft aluminum layer and carbon fiber complex core line is twisted in stranded by the second aluminum steel, described interior strand soft aluminum layer is between carbon fiber complex core line and outer strand soft aluminum layer, it is characterized in that the cross section of the first described aluminum steel and the second aluminum steel is zigzag and the direction of lay of outer strand soft aluminum layer and interior strand soft aluminum layer is contrary, in cross section, core aluminium area ratio is 10% to 15%, described core aluminium area ratio is the ratio of the area of carbon fiber complex core line and the area sum of outer strand soft aluminum layer and interior strand soft aluminum layer.But the conductivity of its aluminium conductor prepared still has much room for improvement, therefore need a kind of low-resistance aluminium alloy conductor and preparation method thereof.
Summary of the invention
The technical problem solved: the resistivity of conventional aluminium alloy conductor is higher, aluminium alloy conductor is being applied in power transmission process, reduce the efficiency of transmission, waste electric power resource, therefore need the resistivity reducing aluminium alloy conductor, need a kind of low-resistance aluminium alloy conductor and preparation method thereof.
Technical scheme: for the problems referred to above, the invention discloses a kind of low-resistance aluminium alloy conductor, described low-resistance aluminium alloy conductor is made up of according to weight ratio following chemical composition: Os is 0.2wt% ~ 0.6wt%, Pd be 0.3wt% ~ 0.6wt%, Cr be 0.5wt% ~ 0.8wt%, Ni be 0.3wt% ~ 0.8wt%, Bi is 0.1wt% ~ 0.4wt%, surplus is Al.
Preferably, the low-resistance aluminium alloy conductor of described one, aluminium alloy conductor is made up of according to weight ratio following chemical composition: Os is 0.3wt%, Pd be 0.5wt%, Cr be 0.7wt%, Ni be 0.5wt%, Bi is 0.2wt%, surplus is Al.
A kind of preparation method of low-resistance aluminium alloy conductor, described preparation method comprises the following steps: aluminium block is carried out high temperature melt by (1) in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.2wt% ~ 0.6wt%, Pd be 0.3wt% ~ 0.6wt%, Cr be 0.5wt% ~ 0.8wt%, Ni be 0.3wt% ~ 0.8wt%, Bi is 0.1wt% ~ 0.4wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
Preferably, the preparation method of described a kind of low-resistance aluminium alloy conductor, preparation method comprises the following steps: aluminium block is carried out high temperature melt by (1) in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.3wt%, Pd be 0.5wt%, Cr be 0.7wt%, Ni be 0.5wt%, Bi is 0.2wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
Beneficial effect: the resistivity and the electric conductivity that determine aluminium alloy conductor of the present invention, the resistivity of aluminium alloy conductor of the present invention is 0.0034 Ω mm
2/ m to 0.0067 Ω mm
2/ m, specific conductivity is at 88.2%IACS to 91.7%IACS.The aluminium alloy conductor prepared has low-down resistivity and higher electric conductivity, can be widely used in power transmission, reduces the loss of electric power resource.
Embodiment
Embodiment 1
(1) aluminium block is carried out high temperature melt in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.3wt%, Pd be 0.5wt%, Cr be 0.7wt%, Ni be 0.5wt%, Bi is 0.2wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
Embodiment 2
(1) aluminium block is carried out high temperature melt in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.2wt%, Pd be 0.3wt%, Cr be 0.5wt%, Ni be 0.3wt%, Bi is 0.1wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
Embodiment 3
(1) aluminium block is carried out high temperature melt in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.6wt%, Pd be 0.6wt%, Cr be 0.8wt%, Ni be 0.8wt%, Bi is 0.4wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
Embodiment 4
(1) aluminium block is carried out high temperature melt in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.5wt%, Pd be 0.6wt%, Cr be 0.5wt%, Ni be 0.4wt%, Bi is 0.3wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
Embodiment 5
(1) aluminium block is carried out high temperature melt in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.3wt%, Pd be 0.3wt%, Cr be 0.6wt%, Ni be 0.6wt%, Bi is 0.1wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
Determine resistivity and the electric conductivity of the aluminium alloy conductor of embodiment 1 to embodiment 5, the measurement result of the aluminium alloy conductor of embodiment 1 to 5 is as following table.
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Resistivity (Ω mm 2/m） | 0.0034 | 0.0067 | 0.0051 | 0.0046 | 0.0055 |
| Electric conductivity (IACS) | 91.7% | 88.2% | 89.9% | 90.3% | 88.6% |
From table, measurement result can draw, the specific conductivity of aluminium alloy conductor of the present invention and elongation are all higher, can meet the needs of actual use.
Claims (4)
1. a low-resistance aluminium alloy conductor, is characterized in that described low-resistance aluminium alloy conductor is made up of according to weight ratio following chemical composition: Os is 0.2wt% ~ 0.6wt%, Pd be 0.3wt% ~ 0.6wt%, Cr be 0.5wt% ~ 0.8wt%, Ni be 0.3wt% ~ 0.8wt%, Bi is 0.1wt% ~ 0.4wt%, surplus is Al.
2. the low-resistance aluminium alloy conductor of one according to claim 1, is characterized in that described low-resistance aluminium alloy conductor is made up of according to weight ratio following chemical composition: Os is 0.3wt%, Pd be 0.5wt%, Cr be 0.7wt%, Ni be 0.5wt%, Bi is 0.2wt%, surplus is Al.
3. the preparation method of a low-resistance aluminium alloy conductor, it is characterized in that described preparation method comprises the following steps: aluminium block is carried out high temperature melt by (1) in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.2wt% ~ 0.6wt%, Pd be 0.3wt% ~ 0.6wt%, Cr be 0.5wt% ~ 0.8wt%, Ni be 0.3wt% ~ 0.8wt%, Bi is 0.1wt% ~ 0.4wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
4. the preparation method of a kind of low-resistance aluminium alloy conductor according to claim 3, it is characterized in that described preparation method comprises the following steps: aluminium block is carried out high temperature melt by (1) in vacuum melting furnace, melt temperature is 1100 DEG C, after aluminium block melts, add Os, Pd, Cr, Ni and Bi by weight, after adding above-mentioned chemical composition, the weight percent of chemical composition is Os be 0.3wt%, Pd be 0.5wt%, Cr be 0.7wt%, Ni be 0.5wt%, Bi is 0.2wt%, surplus is Al; (2) stir after adding above-mentioned chemical composition, again by smelting furnace temperature to 1450 DEG C after stirring, temperature rise rate is 30 DEG C/min, melting 5h at 1450 DEG C; (3) mixed aluminum alloy materials is poured into aluminium alloy rod, then heat-treat, Heating temperature is slowly reduced to room temperature, prepare aluminium alloy rod; (4) adopted by aluminium alloy rod drawing wire machine to carry out drawing by high temperature process, draw speed is 5 meters/min, and after stretching, cooling, prepares low-resistance aluminium alloy conductor.
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| CN201410506764.8A CN104264006A (en) | 2014-09-28 | 2014-09-28 | Low-resistance aluminium-alloy conductor and preparation method thereof |
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| CN201410506764.8A CN104264006A (en) | 2014-09-28 | 2014-09-28 | Low-resistance aluminium-alloy conductor and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970022A (en) * | 2016-05-09 | 2016-09-28 | 山东菲达电力电缆股份有限公司 | Heat-resistant aluminium alloy wire, preparation method and heat-resistant aluminium alloy stranded wire comprising steel core |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4216031A (en) * | 1978-01-23 | 1980-08-05 | Southwire Company | Aluminum nickel base alloy electrical conductor and method therefor |
| CN102758107A (en) * | 2012-06-11 | 2012-10-31 | 上海交通大学 | Heat-resistant aluminum alloy conductor with high strength and high conductivity and preparation method thereof |
| CN102888542A (en) * | 2012-10-25 | 2013-01-23 | 安庆天立电线电缆有限责任公司 | Preparation method of copper-aluminum alloy electric conductor |
-
2014
- 2014-09-28 CN CN201410506764.8A patent/CN104264006A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4216031A (en) * | 1978-01-23 | 1980-08-05 | Southwire Company | Aluminum nickel base alloy electrical conductor and method therefor |
| CN102758107A (en) * | 2012-06-11 | 2012-10-31 | 上海交通大学 | Heat-resistant aluminum alloy conductor with high strength and high conductivity and preparation method thereof |
| CN102888542A (en) * | 2012-10-25 | 2013-01-23 | 安庆天立电线电缆有限责任公司 | Preparation method of copper-aluminum alloy electric conductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970022A (en) * | 2016-05-09 | 2016-09-28 | 山东菲达电力电缆股份有限公司 | Heat-resistant aluminium alloy wire, preparation method and heat-resistant aluminium alloy stranded wire comprising steel core |
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