CN105018802A - Aluminum alloy wire with good heat resistance and preparing method - Google Patents
Aluminum alloy wire with good heat resistance and preparing method Download PDFInfo
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- CN105018802A CN105018802A CN201510349633.8A CN201510349633A CN105018802A CN 105018802 A CN105018802 A CN 105018802A CN 201510349633 A CN201510349633 A CN 201510349633A CN 105018802 A CN105018802 A CN 105018802A
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Abstract
Provided is an aluminum alloy wire with good heat resistance and a preparing method of the aluminum alloy wire. The aluminum alloy wire with the good heat resistance comprises, by weight percentage, 0.45-0.55% of magnesium, 0.15-0.2% of manganese, 0.35-0.40% of iron, 0.06-0.65% of ytterbium, 0.015-0.018% of scandium, 0.25-0.28% of copper, 0.14-0.18% of silver, and the balance aluminum. According to the research, and by means of the magnesium, the corrosion-resistant and heat-resistant performances of an aluminum alloy can be improved. A formula is optimized, and through cooperation of the magnesium, the manganese, the iron, the silver and the copper, the good electricity performance, the flexibility, the strength, the ductility, the high-temperature creep performance, the connecting performance and the corrosion-resistant performance of the aluminum alloy wire are achieved.
Description
Technical field
The invention belongs to alloy wire manufacturing technology field, be specifically related to a kind of aluminum alloy line Materials And Manufacturing Processes of high strength, high conductivity and good heat resistance on transmitting line.
Background technology
In the past, China was copper as the electric wire main component of transmission line.But because copper processing is high, cost is high, add present technical progress, the application percentage of aluminium alloy conductor is in continuous increase.Ordinary steel core aluminum conductor on present transmitting line, aluminium Baogang core wire, alumite wire and high strong aluminum conductor 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 varying environment.
Summary of the invention
The object of this invention is to provide aluminium alloy wires of a kind of good heat resistance and preparation method thereof, the aluminium alloy wires of production can meet high-strength, height and lead the requirement with good heat resistance.
Technical solution of the present invention is as follows:
An aluminium alloy wires for good heat resistance, is characterized in that the composition wherein containing following weight percents: magnesium 0.45-0.55, manganese 0.15-0.2, iron 0.35-0.40, ytterbium 0.06-.065, scandium 0.015-0.018, copper 0.25-0.28, silver-colored 0.14-0.18, surplus are aluminium.
The aluminium alloy wires of described good heat resistance, is characterized in that comprising the following steps:
(1), in magnesium, manganese, weight of iron than the ratio of 4:1:3, magnesium, manganese, iron powder are dropped in stove and melted, after refining, magnesium manganeseirom block is produced in cast; In the ratio of ytterbium, scandium 6:1 in mass ratio, ytterbium, scandium powder are dropped in stove and melted, after refining, ytterbium scandium alloy block is produced in cast;
(2), by composition of raw materials, aluminium block is added in stove at being warming up to 730-740 DEG C and melt, then, at being warming up to 780-790 DEG C again, after adding magnesium manganeseirom block, fully after mixing, then add ytterbium scandium alloy block and other alloying ingredient composition, after abundant mixing, pass into refining agent and carry out refining, skim; Again stokehold chemistry real-time analysis is carried out to aluminium liquid, according to the weight ratio adjustment aluminium fluid component of each component in formula after analysis, feed supplement is carried out to aluminium liquid;
(3), be incubated: step 1 gained aluminium liquid is incubated 15-20min at 720-730 DEG C;
(4), continuous casting and rolling becomes aluminium alloy rod, drawing wire machine is drawn into aluminium alloy single line, controls lubrication temperature not higher than 90 DEG C;
(5), aging strengthening model, send in 290-300 DEG C of heat treatment furnace and process 3-4 hour, then, send in liquid nitrogen and cool 3-4 hour, then, send in 90-100 DEG C of hot water and process 3-4 hour.
The present invention is through research, and magnesium is also to play the erosion resistance and resistance toheat that improve aluminium alloy.Optimization of C/C composites of the present invention, by magnesium and manganese, iron, silver, the coordinating of copper, makes aluminium alloy wires have excellent electric property, flexibility, intensity, unit elongation, high temperature creep property, link performance and corrosion resistance nature.
Rare earth elements of the present invention joins the effect can playing microalloying in aluminium alloy; In addition, gas and the much nonmetal stronger avidity that has such as it and hydrogen, can generate the compound that fusing point is high, therefore it has certain dehydrogenation, refining, cleaning action; Meanwhile, Rare-Earth Element Chemistry activity is extremely strong, and it optionally can adsorb on the crystal grain boundary of growing up, and hinder the growth of crystal grain, result causes grain refining, has rotten effect.
Aluminium alloy conductor of the present invention is compared with existing aluminium alloy conductor, there is high strength and high conductivity simultaneously, tensile strength reaches more than 295Mpa, electric conductivity can reach more than 64.0%IACS, resistance toheat long-time running reaches the high-strength high-conductivity heat-resistant aluminum alloy wire of more than 190 DEG C, can effectively increase wire ability to transmit electricity.
Embodiment
An aluminium alloy wires for good heat resistance, the composition wherein containing following weight percents: magnesium 0.45-0.55, manganese 0.15-0.2, iron 0.35-0.40, ytterbium 0.06-.065, scandium 0.015-0.018, copper 0.25-0.28, silver-colored 0.14-0.18, surplus are aluminium.
2, the aluminium alloy wires of good heat resistance according to claim 1, is characterized in that comprising the following steps:
(1), in magnesium, manganese, weight of iron than the ratio of 4:1:3, magnesium, manganese, iron powder are dropped in stove and melted, after refining, magnesium manganeseirom block is produced in cast; In the ratio of ytterbium, scandium 6:1 in mass ratio, ytterbium, scandium powder are dropped in stove and melted, after refining, ytterbium scandium alloy block is produced in cast;
(2), by composition of raw materials, aluminium block is added in stove at being warming up to 730-740 DEG C and melt, then, at being warming up to 780-790 DEG C again, after adding magnesium manganeseirom block, fully after mixing, then add ytterbium scandium alloy block and other alloying ingredient composition, after abundant mixing, pass into refining agent and carry out refining, skim; Again stokehold chemistry real-time analysis is carried out to aluminium liquid, according to the weight ratio adjustment aluminium fluid component of each component in formula after analysis, feed supplement is carried out to aluminium liquid;
(3), be incubated: step 1 gained aluminium liquid is incubated 15-20min at 720-730 DEG C;
(4), continuous casting and rolling becomes aluminium alloy rod, drawing wire machine is drawn into aluminium alloy single line, controls lubrication temperature not higher than 90 DEG C;
(5), aging strengthening model, send in 290-300 DEG C of heat treatment furnace and process 3-4 hour, then, send in liquid nitrogen and cool 3-4 hour, then, send in 90-100 DEG C of hot water and process 3-4 hour.
Its intensity 295Mpa after tested, electric conductivity is 64.0% IACS, and heat-resisting 190 DEG C of intensity survival rates are 80% for a long time, and elongation is 3.41%, and creep rate is lower than 0.01%.
Claims (2)
1. an aluminium alloy wires for good heat resistance, is characterized in that the composition wherein containing following weight percents: magnesium 0.45-0.55, manganese 0.15-0.2, iron 0.35-0.40, ytterbium 0.06-.065, scandium 0.015-0.018, copper 0.25-0.28, silver-colored 0.14-0.18, surplus are aluminium.
2. the aluminium alloy wires of good heat resistance according to claim 1, is characterized in that comprising the following steps:
(1), in magnesium, manganese, weight of iron than the ratio of 4:1:3, magnesium, manganese, iron powder are dropped in stove and melted, after refining, magnesium manganeseirom block is produced in cast; In the ratio of ytterbium, scandium 6:1 in mass ratio, ytterbium, scandium powder are dropped in stove and melted, after refining, ytterbium scandium alloy block is produced in cast;
(2), by composition of raw materials, aluminium block is added in stove at being warming up to 730-740 DEG C and melt, then, at being warming up to 780-790 DEG C again, after adding magnesium manganeseirom block, fully after mixing, then add ytterbium scandium alloy block and other alloying ingredient composition, after abundant mixing, pass into refining agent and carry out refining, skim; Again stokehold chemistry real-time analysis is carried out to aluminium liquid, according to the weight ratio adjustment aluminium fluid component of each component in formula after analysis, feed supplement is carried out to aluminium liquid;
(3), be incubated: step 1 gained aluminium liquid is incubated 15-20min at 720-730 DEG C;
(4), continuous casting and rolling becomes aluminium alloy rod, drawing wire machine is drawn into aluminium alloy single line, controls lubrication temperature not higher than 90 DEG C;
(5), aging strengthening model, send in 290-300 DEG C of heat treatment furnace and process 3-4 hour, then, send in liquid nitrogen and cool 3-4 hour, then, send in 90-100 DEG C of hot water and process 3-4 hour.
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| CN201510349633.8A CN105018802A (en) | 2015-06-23 | 2015-06-23 | Aluminum alloy wire with good heat resistance and preparing method |
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| CN201510349633.8A CN105018802A (en) | 2015-06-23 | 2015-06-23 | Aluminum alloy wire with good heat resistance and preparing method |
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| CN201510349633.8A Pending CN105018802A (en) | 2015-06-23 | 2015-06-23 | Aluminum alloy wire with good heat resistance and preparing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106834824A (en) * | 2017-02-17 | 2017-06-13 | 昆明冶金研究院 | It is a kind of containing scandium, the high strength and high conductivity rate alumina-base material of yttrium and preparation method thereof |
| CN108893658A (en) * | 2018-07-11 | 2018-11-27 | 合肥华盖光伏科技有限公司 | A kind of high conductivity heat-resistant aluminum alloy wire and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352142A (en) * | 2013-07-01 | 2013-10-16 | 铜陵兴怡金属材料有限公司 | High-strength high-heat resistance aluminum alloy wire rod and preparation method thereof |
| 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 |
-
2015
- 2015-06-23 CN CN201510349633.8A patent/CN105018802A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352142A (en) * | 2013-07-01 | 2013-10-16 | 铜陵兴怡金属材料有限公司 | High-strength high-heat resistance aluminum alloy wire rod and preparation method thereof |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 张学军等: "《航空弧焊技术》", 31 May 2015, 航空工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106834824A (en) * | 2017-02-17 | 2017-06-13 | 昆明冶金研究院 | It is a kind of containing scandium, the high strength and high conductivity rate alumina-base material of yttrium and preparation method thereof |
| CN108893658A (en) * | 2018-07-11 | 2018-11-27 | 合肥华盖光伏科技有限公司 | A kind of high conductivity heat-resistant aluminum alloy wire and preparation method thereof |
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Application publication date: 20151104 |