CN103352142A - High-strength high-heat resistance aluminum alloy wire rod and preparation method thereof - Google Patents
High-strength high-heat resistance aluminum alloy wire rod and preparation method thereof Download PDFInfo
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- CN103352142A CN103352142A CN2013102726723A CN201310272672A CN103352142A CN 103352142 A CN103352142 A CN 103352142A CN 2013102726723 A CN2013102726723 A CN 2013102726723A CN 201310272672 A CN201310272672 A CN 201310272672A CN 103352142 A CN103352142 A CN 103352142A
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Abstract
The invention provides a high-strength high-heat resistance aluminum alloy wire rod and a preparation method thereof. The wire rod is characterized by comprising the following components: on the basis of weight percentage, 1.2 to 1.4 of manganese, 0.25 to 0.35 of zinc, 0.035 to 0.05 of silver, 0.01 to 0.015 of nickel, 0.022 to 0.032 of silicon and 0.1 to 0.2 of iron, with the balance being aluminum. According to results of research, manganese can improve strength, hardness and strength at a high temperature of an aluminum alloy but enables conductivity of the aluminum alloy wire rod to be reduced; cooperation of manganese and zinc is adopted in the invention to compensate for the disadvantage of manganese, and thus, the aluminum alloy wire rod can have both good strength and conductivity.
Description
Technical field
The invention belongs to alloy wire manufacturing technology field, be specifically related to a kind of for the high strength on the transmitting line, high heat-resisting aluminium conductor Materials And Manufacturing Processes.
Background technology
In the past, the electric wire main component used as transmission line of China was copper.But because the copper price is high, cost is high, adds present technical progress, and the application percentage of aluminium alloy conductor is in continuous increase.Ordinary steel core aluminum conductor, aluminium Baogang core wire, alumite wire and high strong aluminum conductor of using on the transmitting line now etc.But existing aluminium alloy wires exists, and electric conductivity is not high, intensity is not high, thermo-labile, large, the line of electric conductivity difference consumes high series of problems in the varying environment.
Summary of the invention
The purpose of this invention is to provide a kind of high-intensity high heat-resistance aluminium alloy wires and preparation method thereof, the aluminium alloy wires of production can satisfy high strength, high heat-resisting requirement.
Technical solution of the present invention is as follows:
The high-intensity high heat-resistance aluminium alloy wires, it is characterized in that wherein containing the composition of following weight percent: manganese 1.2-1.4, zinc 0.25-0.35, silver-colored 0.035-0.05, nickel 0.01-0.015, silicon 0.022-0.032, iron 0.1-0.2, surplus are aluminium.
The preparation method of high-intensity high heat-resistance aluminium alloy wires is characterized in that may further comprise the steps:
(1), in the ratio of manganese, zinc mass ratio 12:2 will manganese, zinc powder drops in the stove and melts, the MnZn alloy block is produced in cast after the refining; The ratio of 3:1:2 will silver in mass ratio, nickel, Si powder drops in the stove and melt in silver, nickel, silicon, and silver-colored nickel silicon alloy piece is produced in cast after the refining;
(2), press composition of raw materials, aluminium block added be warming up to 730-740 ℃ of lower fusing in the stove, then, be warming up to again under 780-790 ℃, after adding the MnZn alloy block, after fully mixing, add again silver-colored nickel silicon alloy piece and other alloying ingredient composition, after fully mixing, pass into refining agent and carry out refining, skim; Again aluminium liquid is carried out stokehold chemistry real-time analysis, adjust the aluminium fluid component according to the weight ratio of each component in the prescription after analyzing, aluminium liquid is carried out feed supplement;
(3), insulation: with step 1 gained aluminium liquid insulation 15-20min under 720-730 ℃;
(4), continuous casting and rolling becomes aluminium alloy rod, drawing wire machine to be drawn into the aluminium alloy single line, the lubricated temperature of control is not higher than 90 ℃;
(5), timeliness thermal treatment, put into 220-230 ℃ of heat treatment furnace, processed 3-4 hour, then, put into 290-300 ℃ heat treatment furnace, processed 2-3 hour, be cooled to 100-120 ℃, atomized water spray is cooled to room temperature.
After deliberation, intensity when manganese can improve intensity, hardness, the high temperature of aluminium alloy, but manganese can make the aluminium alloy wires electric conductivity reduce, and the present invention adopts manganese, zinc to cooperate, and compensates its defect, so that aluminium alloy wires can be taken into account intensity and electric conductivity.
Rare earth elements of the present invention joins the effect that can play microalloying in the aluminium alloy; In addition, gas and a lot of nonmetal stronger avidity that has such as it and hydrogen can generate the high compound of fusing point, therefore it has certain dehydrogenation, refining, cleaning action; Simultaneously, the Rare-Earth Element Chemistry activity is extremely strong, and it can optionally adsorb on the crystal grain boundary of growing up, and hinders the growth of crystal grain, and the result causes grain refining, and rotten effect is arranged.
Aluminium alloy conductor of the present invention is compared with existing aluminium alloy conductor, have simultaneously high strength and high heat resistance, tensile strength reaches more than the 205Mpa, electric conductivity can reach more than the 59.0%IACS, the resistance toheat long-time running reaches the high-strength high-conductivity heat-resistant aluminum alloy wire more than 190 ℃, can effectively increase the wire ability to transmit electricity.
Embodiment
The high-intensity high heat-resistance aluminium alloy wires, the composition that wherein contains following weight percent: the preparation method of manganese 1.2-1.4, zinc 0.25-0.35, silver-colored 0.035-0.05, nickel 0.01-0.015, silicon 0.022-0.032, iron 0.1-0.2, high-intensity high heat-resistance aluminium alloy wires is characterized in that may further comprise the steps:
(1), in the ratio of manganese, zinc mass ratio 12:2 will manganese, zinc powder drops in the stove and melts, the MnZn alloy block is produced in cast after the refining; The ratio of 3:1:2 will silver in mass ratio, nickel, Si powder drops in the stove and melt in silver, nickel, silicon, and silver-colored nickel silicon alloy piece is produced in cast after the refining;
(2), press composition of raw materials, aluminium block added be warming up to 730-740 ℃ of lower fusing in the stove, then, be warming up to again under 780-790 ℃, after adding the MnZn alloy block, after fully mixing, add again silver-colored nickel silicon alloy piece and other alloying ingredient composition, after fully mixing, pass into refining agent and carry out refining, skim; Again aluminium liquid is carried out stokehold chemistry real-time analysis, adjust the aluminium fluid component according to the weight ratio of each component in the prescription after analyzing, aluminium liquid is carried out feed supplement; Content is met the requirements.
(3), insulation: with step 1 gained aluminium liquid insulation 15-20min under 720-730 ℃;
(4), continuous casting and rolling becomes aluminium alloy rod, drawing wire machine to be drawn into the aluminium alloy single line, the lubricated temperature of control is not higher than 90 ℃;
(5), timeliness thermal treatment, put into 220-230 ℃ of heat treatment furnace, processed 3-4 hour, then, put into 290-300 ℃ heat treatment furnace, processed 2-3 hour, be cooled to 100-120 ℃, atomized water spray is cooled to room temperature.
Its intensity 205Mpa after tested, electric conductivity is 59.0% IACS, and long-term heat-resisting 180 ℃ of intensity survival rates are 85%, and elongation is 2.41%, and creep rate is lower than 0.01%.
Claims (2)
1. high-intensity high heat-resistance aluminium alloy wires, it is characterized in that wherein containing the composition of following weight percent: manganese 1.2-1.4, zinc 0.25-0.35, silver-colored 0.035-0.05, nickel 0.01-0.015, silicon 0.022-0.032, iron 0.1-0.2, surplus are aluminium.
2. the preparation method of high-intensity high heat-resistance aluminium alloy wires according to claim 1 is characterized in that may further comprise the steps:
(1), in the ratio of manganese, zinc mass ratio 12:2 will manganese, zinc powder drops in the stove and melts, the MnZn alloy block is produced in cast after the refining; The ratio of 3:1:2 will silver in mass ratio, nickel, Si powder drops in the stove and melt in silver, nickel, silicon, and silver-colored nickel silicon alloy piece is produced in cast after the refining;
(2), press composition of raw materials, aluminium block added be warming up to 730-740 ℃ of lower fusing in the stove, then, be warming up to again under 780-790 ℃, after adding the MnZn alloy block, after fully mixing, add again silver-colored nickel silicon alloy piece and other alloying ingredient composition, after fully mixing, pass into refining agent and carry out refining, skim; Again aluminium liquid is carried out stokehold chemistry real-time analysis, adjust the aluminium fluid component according to the weight ratio of each component in the prescription after analyzing, aluminium liquid is carried out feed supplement;
(3), insulation: with step 1 gained aluminium liquid insulation 15-20min under 720-730 ℃;
(4), continuous casting and rolling becomes aluminium alloy rod, drawing wire machine to be drawn into the aluminium alloy single line, the lubricated temperature of control is not higher than 90 ℃;
(5), timeliness thermal treatment, put into 220-230 ℃ of heat treatment furnace, processed 3-4 hour, then, put into 290-300 ℃ heat treatment furnace, processed 2-3 hour, be cooled to 100-120 ℃, atomized water spray is cooled to room temperature.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002399A (en) * | 2015-06-23 | 2015-10-28 | 铜陵金力铜材有限公司 | High-strength and high-conductivity heat-resistant aluminum alloy wire and preparation method thereof |
| CN105018802A (en) * | 2015-06-23 | 2015-11-04 | 铜陵金力铜材有限公司 | Aluminum alloy wire with good heat resistance and preparing method |
| CN105018797A (en) * | 2015-06-23 | 2015-11-04 | 铜陵金力铜材有限公司 | Aluminum alloy wire with good electrical conductivity and preparing method |
| CN105132763A (en) * | 2015-06-23 | 2015-12-09 | 铜陵金力铜材有限公司 | Aluminum alloy wire material and preparation method thereof |
| CN107240434A (en) * | 2017-06-27 | 2017-10-10 | 苏州菱慧电子科技有限公司 | A kind of conductive metallic material |
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| CN101419849A (en) * | 2008-10-21 | 2009-04-29 | 无锡华能电缆有限公司 | High conductivity flexible aluminum wire and manufacturing method thereof |
| CN102119233A (en) * | 2008-08-11 | 2011-07-06 | 住友电气工业株式会社 | Aluminum alloy wire |
| CN102597285A (en) * | 2009-10-13 | 2012-07-18 | 萨帕铝热传输公司 | Sandwich material with high strength at high temperature for thin strips in heat exchangers |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119233A (en) * | 2008-08-11 | 2011-07-06 | 住友电气工业株式会社 | Aluminum alloy wire |
| US8353993B2 (en) * | 2008-08-11 | 2013-01-15 | Sumitomo Electric Industries, Ltd. | Aluminum alloy wire |
| CN101419849A (en) * | 2008-10-21 | 2009-04-29 | 无锡华能电缆有限公司 | High conductivity flexible aluminum wire and manufacturing method thereof |
| CN102597285A (en) * | 2009-10-13 | 2012-07-18 | 萨帕铝热传输公司 | Sandwich material with high strength at high temperature for thin strips in heat exchangers |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002399A (en) * | 2015-06-23 | 2015-10-28 | 铜陵金力铜材有限公司 | High-strength and high-conductivity heat-resistant aluminum alloy wire and preparation method thereof |
| CN105018802A (en) * | 2015-06-23 | 2015-11-04 | 铜陵金力铜材有限公司 | Aluminum alloy wire with good heat resistance and preparing method |
| CN105018797A (en) * | 2015-06-23 | 2015-11-04 | 铜陵金力铜材有限公司 | Aluminum alloy wire with good electrical conductivity and preparing method |
| CN105132763A (en) * | 2015-06-23 | 2015-12-09 | 铜陵金力铜材有限公司 | Aluminum alloy wire material and preparation method thereof |
| CN107240434A (en) * | 2017-06-27 | 2017-10-10 | 苏州菱慧电子科技有限公司 | A kind of conductive metallic material |
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| CN103352142B (en) | 2016-02-17 |
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