CN103762008A - Al-Fe-Mg-Zn aluminum alloy used for automobile wire and wire harness thereof - Google Patents
Al-Fe-Mg-Zn aluminum alloy used for automobile wire and wire harness thereof Download PDFInfo
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Abstract
The invention discloses Al-Fe-Mg-Zn aluminum alloy used for an automobile wire, a manufacturing method of the Al-Fe-Mg-Zn aluminum alloy, and a wire harness manufactured from the Al-Fe-Mg-Zn aluminum alloy. The Al-Fe-Mg-Zn aluminum alloy used for the automobile wire contains 0.2-1.4 wt percent of Fe, 0.01-0.5 wt percent of Mg, 0.002-0.2 wt percent of Zn, and the balance of Al and inevitable impurities. According to the aluminum alloy, due to the fact that the Fe is added, the mechanical strength and the tensile property of the alloy can be improved, and the high-temperature creep resistance can be obviously improved and the anti-fatigue performance of the alloy can be improved due to the Fe; due to the fact that the Mg is added, the mechanical strength and the high-temperature creep resistance of the alloy can be improved, and the fatigue resistance can be improved; due to the fact that the Zn is added, the conductivity of the aluminum alloy can be reduced to a small extent, but the strength can be effectively improved to a certain extent, and meanwhile the creep rate of conductors is improved.
Description
Technical field
The present invention relates to a kind of storage battery cable, wire harness or engine can be used as in mobile vehicle wire harness of cable, belong to field of aluminum alloys.
Background technology
In world wide, automobile industry development is rapid at present, auto industry not only becomes the U.S., the pillar industry of the developed countries such as Japan, also become the pillar industry of some developing countries that comprise China, as the automotive line of one of important auxiliary products of automobile, no matter in scale output or kind demand, all there are good market prospects.
Automobile is to miniaturization, lightweight future development simultaneously, and the control circuit of various electronic equipments increases, and increase the distribution position in motor vehicle, in order to reach energy-saving and cost-reducing object, requires low tension cables for automobiles to the performance future development of minification.Therefore,, for weight reduction, attempted the aluminium electric wire that uses conductor to be made by aluminum.
The aluminium electric wire that conductor is made by alumina-base material is due to lightweight and excellent electric conductivity, thereby routinely for the power industry field of overhead electric power transmission line is set.Aluminium alloy more and more for the conductor of aluminium electric wire to improve intensity and resistance to bend(ing), day by day deficient along with copper resource in addition, and the content of aluminium is very abundant, with aluminium substitution copper, received researcher's concern, so aluminium alloy becomes the focus of research as cable conductor.
For example, Japanese Patent Laid-Open 2006-19163 communique discloses a kind of aluminium conductor, it is the twisted wire by aluminium alloy wires twisted is made, the Si of the Mg of the Fe that described aluminium alloy wires contains 1.10-1.50 quality %, 0.03-0.25 quality %, 0.02-0.06% quality %, surplus is Al and inevitable impurity.A kind of hard wire drawing line during aluminium alloy wires that this piece of patent mentioned, thus although described wire intensity increases, extend rate variance, and this causes resistance to bend(ing) and resistance to impact to decline.
Japan Patent car aluminum electric wire and manufacture method thereof (application number: the conductor providing 200820111739.2) has hot strength, more than 15% elongation at break and conductivity more than 58%IACS more than 110MPa, but this piece of patent do not embody the good effect of improving for the creep resistance of conductor.
Yet as the conductor of the electric wiring body of moving body, wherein a most important problem is exactly the requirement to resistance to creep properties.Because approximately 140 ℃ of the ambient temperatures of the easy creep of aluminium, and the thermal environment of moving body such as the engine chamber of automobile, drive by these parts of engine and just easily reach in full summer this temperature.In addition, the electric wiring body electric wire of moving body is riveted on terminal, if there is creep, has the hidden danger coming off.
Therefore, the exploitation of the aluminium conductor of resistance to creep properties excellence is necessary.In addition, for preventing infinitely repeatedly under alternate load effect, the conductor of the electric wiring body as moving body being damaged, the raising of fatigue durability is also necessary.
Summary of the invention
The object of the present invention is to provide a kind of light weight, have excellent electric conductivity, the automotive line of hot strength, processability, creep-resistant property with Al-Fe-Mg-Zn aluminium alloy and preparation method thereof and preparation thereof and automotive wire bundle.
Above-mentioned purpose realizes by following scheme:
An automotive line Al-Fe-Mg-Zn aluminium alloy, comprises following composition:
Fe, content is 0.2-1.4wt%,
Mg, content is 0.01-0.5wt%,
Zn, content is 0.001-0.2wt%,
Surplus is Al and inevitable impurity.
Described alloy also contains the Si that is no more than 0.1wt%.
In described alloy, also contain the RE of 0.1-0.3wt%, wherein Ce, La account for the more than 50% of total amount of rare earth.
Described aluminium alloy resistance rate is not more than 0.028264 Ω mm
2/ m, elongation at break is not less than 10%, and under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 1 * 10
-3(%/h) or lower, and the tired bending of 90 degree number of times reach 30 or higher.
The preparation method of Al-Fe-Mg-Zn aluminium alloy for described automotive line, forms aluminium alloy rod by melting, casting, rolling.
The described automotive wire bundle that utilizes automotive line to make with Al-Fe-Mg-Zn aluminium alloy, forms aluminium alloy rod by melting, casting, rolling, then through drawing, restraint strand, the softening aluminium alloy conductor core that forms, conductor thread core extrudes one deck insulation outward and makes.
Described conductor thread core is formed by the filament tow strand of 10-1000 root 0.2-0.5mm.
Described insulating barrier extrudes one deck sheath outward; Described insulation and sheath material adopt polyvinyl chloride, polyvinyl chloride-butyronitrile polymer, polyamide, fluorinated ethylene propylene (FEP) or polypropylene material.
Under can be used for-40-150 of described automotive wire bundle ℃ environment.
Described automotive wire bundle can be used as storage battery cable, wire harness or the engine cable in moving body carrier.
Method for the preparation of aluminium alloy of the present invention comprises the following steps:
A) by molten aluminium alloy is cast and is obtained founding materials: add the melting at 700 ℃ or higher temperature of Al ingot, Al-Fe ingot, Al-Mg ingot, Al-Zn ingot or simple metal ingot to process by formula rate; 680 ℃ of following temperature are cast;
B) ingot casting step a) being obtained carries out solution treatment and Ageing Treatment, rerolls and makes rod of metal alloy;
C) by step b) rod of metal alloy that is rolled into is through cold-drawn, stranded, softening, and extruded insulation is made alloy wiring.
Preferably, the method for the preparation of alloy wiring of the present invention comprises the following steps:
A) by molten aluminium alloy is cast and is obtained founding materials: add the melting at 700 ℃ or higher temperature of Al ingot, Al-Fe ingot, Al-Mg ingot, Al-Zn ingot, Al-RE ingot or simple metal ingot to process by formula rate; 680 ℃ of following temperature are cast;
B) ingot casting step a) being obtained carries out solution treatment and Ageing Treatment, rerolls and makes rod of metal alloy;
C) by step b) rod of metal alloy that is rolled into is through cold-drawn, stranded, softening, and extruded insulation is made alloy wiring.
After conductor thread core of the present invention annealing, compressed with one heart, by the filament tow strand of 10～1000 0.2mm～0.5mm, formed.
Beneficial effect of the present invention is: the preferred Fe of the present invention, Mg, Zn are as the interpolation element of alloy, by adding Fe element, can improve mechanical strength and the tensile property of alloy, Fe can also significantly improve high-temperature creep resistance, and carry heavy alloyed anti-fatigue performance, adding of Mg can be carried heavy alloyed intensity and high temperature creep property, and can improve anti-fatigue performance.Being added in aluminium alloy of Zn can make conductance slightly reduce, but can effectively improve to a certain extent intensity, improves the creep rate of conductor simultaneously.The present invention has done restriction to the content of Si, is because too much Si can cause tensile property to reduce, and have influence on the processing characteristics of cable, and may reduce the tired bending property of conductor, and too much Si also can reduce electrical property.In the present invention, Fe content is 0.2-1.4wt%, Mg content is 0.01-0.05wt%, Zn content is 0.001-0.2wt%, and content is no more than the Si of 0.1wt% and the RE that contains 0.1-0.3wt%, Ce wherein, La accounts for the more than 50% of total amount of rare earth, by such formulation alloy formula, both can improve the performance of alloy, the performance that is unlikely to again the alloy that too much amount can worsen, particularly electrical property and extension property, by rational proportion relation, well ensure the Performance Match of alloy, the preferred RE element of the present invention, Ce wherein, La account in RE total content more than 50%, rare earth can significantly improve the electrical property of alloy, middle rare earth of the present invention adds in aluminium alloy, while making aluminum alloy melt casting, increase constitutional supercooling, crystal grain thinning, reduce secondary intergranular distance, reduce the gas in alloy and be mingled with, and make to be mingled with and be tending towards mutually nodularization.Also can reduce smelt surface tension, increase mobility, be conducive to be cast into ingot, processing performance is had to obvious impact, can also play the effect that improves the tired bending property of Alloy Anti, extended the useful life of cable, preferably Ce and La, be because these two kinds of elements in the present invention effect compared with other rare earth elements, to improve effect more obvious.Simultaneously aluminum alloy materials by melting, casting, solid solution and Ageing Treatment, rolling mill practice after, make aluminium alloy resistance rate be not more than 0.028264 Ω mm
2/ m, elongation at break is not less than 10%, and under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 1 * 10
-3(%/h) or lower, and the tired bending of 90 degree number of times reach 30 or higher.
The automotive wire bundle being prepared from by the present invention, both realized as the necessary electric property of conductor, overcome again the deficiency of aluminium alloy as processing characteristics, creep-resistant property and the anti-fatigue performance aspect of the existence of automotive wire bundle conductor, and realized the desired lightweight problem as automotive wire bundle, aspect technical economic benefit, have very important significance.
Embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
An automotive line aluminium alloy, the percentage by weight of component and each component following (total weight: 1T):
| Component | Fe | Mg | Zn | Si | RE | Al |
| Weight (Kg) | 2 | 0.1 | 0.01 | / | / | 997.89 |
| Percentage by weight (%) | 0.2 | 0.01 | 0.001 | / | / | 99.789 |
In above-mentioned aluminum alloy materials, be preferably added with a certain amount of Zn, being added in aluminium alloy of Zn can make conductance slightly reduce, but can effectively improve to a certain extent intensity, improves the creep rate of conductor simultaneously.
Apply above-mentioned aluminum alloy materials and prepare the method for aluminium alloy core, concrete steps are as follows:
A, founding: add according to the above ratio al alloy component, after melting is processed at 730 ℃, at 670 ℃, carry out ingot casting, then be rolled into rod of metal alloy through solution treatment and Ageing Treatment, the Ageing Treatment here is preferably carried out at 140 ℃ or higher temperature,
B, wire drawing: the rod of metal alloy being obtained by a is carried out to temperature 150-180 ℃, the intermediate annealing of 4-6 hour, this is when guaranteeing the intensity of alloy, improves its tensile property, resistance to bend(ing) energy strengthens alloy plasticity, improves subsequent technique efficiency.Here we by rod of metal alloy wire drawing the alloy filaments to Ф 0.2mm.
C, annealing: by after the filament tow strand being made by b in annealing furnace, at 280-320 ℃, be incubated 5-8 hour, annealing time reaches after requirement, the time of being down to 100 ℃ from annealing temperature is more than 15 minutes, like this under treatment conditions, Zn has crystal grain thinning, promotes the effect that alloy conductor recovers its conductivity in annealing process, and the Fe of solid solution form amount is few in addition, and the electric conductivity of the conductor that makes to anneal is excellent.
Above-mentioned aluminium alloy is by material, and after melting, casting, solid solution and Ageing Treatment, rolling mill practice, the aluminium alloy resistance rate obtaining is 0.028172 Ω mm
2/ m, conductance 61.2%IACS, elongation at break is 15%, under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 0.96 * 10
-3(%/h), and the tired bending of 90 degree number of times reach 35.
Embodiment 2
An automotive line aluminium alloy, the percentage by weight of component and each component following (total weight: 1T):
In above-mentioned aluminum alloy materials, content by Si compares, and appropriate Si is improved the effect of recrystallization temperature and crystal grain thinning, surpasses certain content and can reduce its electric conductivity, and in implementation process, find the too much sample easy fracture in drawing process of Si content.
Apply above-mentioned aluminum alloy materials and prepare the method for aluminium alloy core, concrete steps are as follows:
A, founding: add according to the above ratio al alloy component, after melting is processed at 730 ℃, at 670 ℃, carry out ingot casting, then be rolled into rod of metal alloy through solution treatment and Ageing Treatment, the Ageing Treatment here is preferably carried out at 140 ℃ or higher temperature,
B, wire drawing: the rod of metal alloy being obtained by a is carried out to temperature 150-180 ℃, the intermediate annealing of 4-6 hour, this is when guaranteeing the intensity of alloy, improves its tensile property, resistance to bend(ing) energy strengthens alloy plasticity, improves subsequent technique efficiency.Here we by rod of metal alloy wire drawing the alloy filaments to Ф 0.4mm.
C, annealing: by after the filament tow strand being made by b in annealing furnace, at 280-320 ℃, be incubated 5-8 hour, annealing time reaches after requirement, the time of being down to 100 ℃ from annealing temperature is more than 15 minutes, like this under treatment conditions, Zn has crystal grain thinning, promotes the effect that alloy conductor recovers its conductivity in annealing process, and the Fe of solid solution form amount is few in addition, and the electric conductivity of the conductor that makes to anneal is excellent.
Above-mentioned aluminium alloy is by material, and after melting, casting, solid solution and Ageing Treatment, rolling mill practice, the aluminium alloy resistance rate of the sample 1 obtaining is 0.028080 Ω mm
2/ m, conductance 61.4%IACS, elongation at break is 15%, under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 0.96 * 10
-3(%/h), and the tired bending of 90 degree number of times reach 34; The aluminium alloy resistance rate of sample 2 is 0.030194 Ω mm
2/ m, conductance 57.1%IACS, elongation at break is 6%, under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 1.24 * 10
-3(%/h), the tired bending of 90 degree number of times reaches 24.Therefore, in the technical program, Si content is defined as and is not more than 0.1wt%.
Embodiment 3
An automotive line aluminium alloy, the percentage by weight of component and each component following (total weight: 1T):
In above-mentioned aluminum alloy materials, preferably add a certain amount of RE element, wherein Ce, La account for 52% in RE total content, rare earth can significantly improve the electrical property of alloy, and middle rare earth of the present invention adds in aluminium alloy, increases constitutional supercooling while making aluminum alloy melt casting, crystal grain thinning, reduce secondary intergranular distance, reduce the gas in alloy and be mingled with, and make to be mingled with and be tending towards mutually nodularization.Also can reduce smelt surface tension, increase mobility, be conducive to be cast into ingot, processing performance is had to obvious impact, can also play the effect that improves the tired bending property of Alloy Anti, extended the useful life of cable, preferably Ce and La, be because these two kinds of elements in the present invention effect compared with other rare earth elements, to improve effect more obvious.
Apply above-mentioned aluminum alloy materials and prepare the method for aluminium alloy core, concrete steps are as follows:
A, founding: add according to the above ratio al alloy component, after melting is processed at 730 ℃, at 670 ℃, carry out ingot casting, then be rolled into rod of metal alloy through solution treatment and Ageing Treatment, the Ageing Treatment here is preferably carried out at 140 ℃ or higher temperature,
B, wire drawing: the rod of metal alloy being obtained by a is carried out to temperature 150-180 ℃, the intermediate annealing of 4-6 hour, this is when guaranteeing the intensity of alloy, improves its tensile property, resistance to bend(ing) energy strengthens alloy plasticity, improves subsequent technique efficiency.Here we by rod of metal alloy wire drawing the alloy filaments to Ф 0.2mm.
C, annealing: by after the filament tow strand being made by b in annealing furnace, at 280-320 ℃, be incubated 5-8 hour, annealing time reaches after requirement, the time of being down to 100 ℃ from annealing temperature is more than 15 minutes, like this under treatment conditions, Zn has crystal grain thinning, promotes the effect that alloy conductor recovers its conductivity in annealing process, and the Fe of solid solution form amount is few in addition, and the electric conductivity of the conductor that makes to anneal is excellent.
Above-mentioned aluminium alloy is by material, and after melting, casting, solid solution and Ageing Treatment, rolling mill practice, the aluminium alloy resistance rate obtaining is 0.027711 Ω mm
2/ m, conductance 62.2%IACS, elongation at break is 17%, under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 0.90 * 10
-3(%/h), and the tired bending of 90 degree number of times reach 35.
Embodiment 4
An automotive line aluminium alloy, the percentage by weight of component and each component following (total weight: 1T):
| Component | Fe | Mg | Zn | Si | RE | Al |
| Weight (Kg) | 7.0 | 3.0 | 1.0 | 0.70 | 2.3 | 986.00 |
| Percentage by weight (%) | 0.70 | 0.30 | 0.10 | 0.07 | 0.23 | 98.60 |
In above-mentioned aluminum alloy materials, preferably add a certain amount of RE element, wherein Ce, La account for 50% in RE total content, rare earth can significantly improve the electrical property of alloy, and middle rare earth of the present invention adds in aluminium alloy, increases constitutional supercooling while making aluminum alloy melt casting, crystal grain thinning, reduce secondary intergranular distance, reduce the gas in alloy and be mingled with, and make to be mingled with and be tending towards mutually nodularization.Also can reduce smelt surface tension, increase mobility, be conducive to be cast into ingot, processing performance is had to obvious impact, can also play the effect that improves the tired bending property of Alloy Anti, extended the useful life of cable, preferably Ce and La, be because these two kinds of elements in the present invention effect compared with other rare earth elements, to improve effect more obvious.
Apply above-mentioned aluminum alloy materials and prepare the method for aluminium alloy core, concrete steps are as follows:
A, founding: add according to the above ratio al alloy component, after melting is processed at 730 ℃, at 670 ℃, carry out ingot casting, then be rolled into rod of metal alloy through solution treatment and Ageing Treatment, the Ageing Treatment here is preferably carried out at 140 ℃ or higher temperature,
B, wire drawing: the rod of metal alloy being obtained by a is carried out to temperature 150-180 ℃, the intermediate annealing of 4-6 hour, this is when guaranteeing the intensity of alloy, improves its tensile property, resistance to bend(ing) energy strengthens alloy plasticity, improves subsequent technique efficiency.Here we by rod of metal alloy wire drawing the alloy filaments to Ф 0.2mm.
C, annealing: by after the filament tow strand being made by b in annealing furnace, at 280-320 ℃, be incubated 5-8 hour, annealing time reaches after requirement, the time of being down to 100 ℃ from annealing temperature is more than 15 minutes, like this under treatment conditions, Zn has crystal grain thinning, promotes the effect that alloy conductor recovers its conductivity in annealing process, and the Fe of solid solution form amount is few in addition, and the electric conductivity of the conductor that makes to anneal is excellent.
Above-mentioned aluminium alloy is by material, and after melting, casting, solid solution and Ageing Treatment, rolling mill practice, the aluminium alloy resistance rate obtaining is 0.0275867 Ω mm
2/ m, conductance 62.5%IACS, elongation at break is 18%, under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 0.85 * 10
-3(%/h), and the tired bending of 90 degree number of times reach 35.
Embodiment 5
An automotive line aluminium alloy, the percentage by weight of component and each component following (total weight: 1T):
| Component | Fe | Mg | Zn | Si | RE | Al |
| Weight (Kg) | 12 | 4.9 | 1.1 | 0.40 | 1.6 | 980.00 |
| Percentage by weight (%) | 1.2 | 0.49 | 0.11 | 0.04 | 0.16 | 98.00 |
In above-mentioned aluminum alloy materials, preferably add a certain amount of RE element, wherein Ce, La account for 60% in RE total content, rare earth can significantly improve the electrical property of alloy, and middle rare earth of the present invention adds in aluminium alloy, increases constitutional supercooling while making aluminum alloy melt casting, crystal grain thinning, reduce secondary intergranular distance, reduce the gas in alloy and be mingled with, and make to be mingled with and be tending towards mutually nodularization.Also can reduce smelt surface tension, increase mobility, be conducive to be cast into ingot, processing performance is had to obvious impact, can also play the effect that improves the tired bending property of Alloy Anti, extended the useful life of cable, preferably Ce and La, be because these two kinds of elements in the present invention effect compared with other rare earth elements, to improve effect more obvious.
Apply above-mentioned aluminum alloy materials and prepare the method for aluminium alloy core, concrete steps are as follows:
A, founding: add according to the above ratio al alloy component, after melting is processed at 730 ℃, at 670 ℃, carry out ingot casting, then be rolled into rod of metal alloy through solution treatment and Ageing Treatment, the Ageing Treatment here is preferably carried out at 140 ℃ or higher temperature,
B, wire drawing: the rod of metal alloy being obtained by a is carried out to temperature 150-180 ℃, the intermediate annealing of 4-6 hour, this is when guaranteeing the intensity of alloy, improves its tensile property, resistance to bend(ing) energy strengthens alloy plasticity, improves subsequent technique efficiency.Here we by rod of metal alloy wire drawing the alloy filaments to Ф 0.2mm.
C, annealing: by after the filament tow strand being made by b in annealing furnace, at 280-320 ℃, be incubated 5-8 hour, annealing time reaches after requirement, the time of being down to 100 ℃ from annealing temperature is more than 15 minutes, like this under treatment conditions, Zn has crystal grain thinning, promotes the effect that alloy conductor recovers its conductivity in annealing process, and the Fe of solid solution form amount is few in addition, and the electric conductivity of the conductor that makes to anneal is excellent.
Above-mentioned aluminium alloy is by material, and after melting, casting, solid solution and Ageing Treatment, rolling mill practice, the aluminium alloy resistance rate obtaining is 0.027542 Ω mm
2/ m, conductance 62.7%IACS, elongation at break is 18%, under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 0.58 * 10
-3(%/h), and the tired bending of 90 degree number of times reach 37.
Embodiment 6
An automotive line aluminium alloy, the percentage by weight of component and each component following (total weight: 1T):
| Component | Fe | Mg | Zn | Si | RE | Al |
| Weight (Kg) | 6.0 | 3.0 | 0.87 | 0.5 | 2.0 | 987.63 |
| Percentage by weight (%) | 0.6 | 0.3 | 0.087 | 0.05 | 0.2 | 98.763 |
In above-mentioned aluminum alloy materials, preferably add a certain amount of RE element, wherein Ce, La account in RE total content more than 60%, rare earth can significantly improve the electrical property of alloy, and middle rare earth of the present invention adds in aluminium alloy, increases constitutional supercooling while making aluminum alloy melt casting, crystal grain thinning, reduce secondary intergranular distance, reduce the gas in alloy and be mingled with, and make to be mingled with and be tending towards mutually nodularization.Also can reduce smelt surface tension, increase mobility, be conducive to be cast into ingot, processing performance is had to obvious impact, can also play the effect that improves the tired bending property of Alloy Anti, extended the useful life of cable, preferably Ce and La, be because these two kinds of elements in the present invention effect compared with other rare earth elements, to improve effect more obvious.
Apply above-mentioned aluminum alloy materials and prepare the method for aluminium alloy core, concrete steps are as follows:
A, founding: add according to the above ratio al alloy component, after melting is processed at 730 ℃, at 670 ℃, carry out ingot casting, then be rolled into rod of metal alloy through solution treatment and Ageing Treatment, the Ageing Treatment here is preferably carried out at 140 ℃ or higher temperature,
B, wire drawing: the rod of metal alloy being obtained by a is carried out to temperature 150-180 ℃, the intermediate annealing of 4-6 hour, this is when guaranteeing the intensity of alloy, improves its tensile property, resistance to bend(ing) energy strengthens alloy plasticity, improves subsequent technique efficiency.Here we by rod of metal alloy wire drawing the alloy filaments to Ф 0.2mm.
C, annealing: by after the filament tow strand being made by b in annealing furnace, at 280-320 ℃, be incubated 5-8 hour, annealing time reaches after requirement, the time of being down to 100 ℃ from annealing temperature is more than 15 minutes, like this under treatment conditions, Zn has crystal grain thinning, promotes the effect that alloy conductor recovers its conductivity in annealing process, and the Fe of solid solution form amount is few in addition, and the electric conductivity of the conductor that makes to anneal is excellent.
Above-mentioned aluminium alloy is by material, and after melting, casting, solid solution and Ageing Treatment, rolling mill practice, the aluminium alloy resistance rate obtaining is 0.027801 Ω mm
2/ m, conductance 62.1%IACS, elongation at break is 15%, under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 0.87 * 10
-3(%/h), and the tired bending of 90 degree number of times reach 37.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing, be equal to replacement etc., within all should being included in protection scope of the present invention in protection scope of the present invention.
Claims (8)
1. an automotive line Al-Fe-Mg-Zn aluminium alloy, is characterized in that: comprise following composition:
Fe, content is 0.2-1.4wt%,
Mg, content is 0.01-0.5wt%,
Zn, content is 0.001-0.2wt%,
Surplus is Al and inevitable impurity.
2. a kind of automotive line Al-Fe-Mg-Zn aluminium alloy according to claim 1, is characterized in that: described alloy also contains the Si that is no more than 0.1wt%.
3. a kind of automotive line Al-Fe-Mg-Zn aluminium alloy according to claim 1, is characterized in that: in described alloy, also contain the RE of 0.1-0.3wt%, wherein Ce, La account for the more than 50% of total amount of rare earth.
4. according to a kind of automotive line Al-Fe-Mg-Zn aluminium alloy described in claim 1 or 2 or 3, it is characterized in that: described aluminium alloy resistance rate is not more than 0.028264 Ω mm
2/ m, elongation at break is not less than 10%, and under 140 ℃ of temperature, 120MPa compression condition, the average creep rate of 1-100 hour is 1 * 10
-3(%/h) or lower, and the tired bending of 90 degree number of times reach 30 or higher.
5. an automotive wire bundle that utilizes the aluminium alloy described in claim 4 and make, is characterized in that: described conductor thread core is formed by the filament tow strand of 10-1000 root 0.2-0.5mm.
6. wire harness according to claim 5, is characterized in that: described insulating barrier extrudes one deck sheath outward, and insulation and sheath material adopt polyvinyl chloride, polyvinyl chloride-butyronitrile polymer, polyamide, fluorinated ethylene propylene (FEP) or polypropylene material.
7. wire harness according to claim 6, is characterized in that: under can be used for-40-150 of described automotive wire bundle ℃ environment.
8. wire harness according to claim 7, is characterized in that: described automotive wire bundle can be used as storage battery cable, wire harness or the engine cable in moving body carrier.
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|---|---|---|---|
| CN201310733127.XA CN103762008A (en) | 2013-12-26 | 2013-12-26 | Al-Fe-Mg-Zn aluminum alloy used for automobile wire and wire harness thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310733127.XA CN103762008A (en) | 2013-12-26 | 2013-12-26 | Al-Fe-Mg-Zn aluminum alloy used for automobile wire and wire harness thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005336549A (en) * | 2004-05-27 | 2005-12-08 | Nippon Light Metal Co Ltd | Aluminum alloy for conductive wire for automobile, and method for manufacturing wire of the alloy |
| CN101880799A (en) * | 2010-07-13 | 2010-11-10 | 安徽欣意电缆有限公司 | Al-Fe-Zn-Mg rare earth alloy wire and preparation method thereof |
| CN102119233A (en) * | 2008-08-11 | 2011-07-06 | 住友电气工业株式会社 | Aluminum alloy wire |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005336549A (en) * | 2004-05-27 | 2005-12-08 | Nippon Light Metal Co Ltd | Aluminum alloy for conductive wire for automobile, and method for manufacturing wire of the alloy |
| CN102119233A (en) * | 2008-08-11 | 2011-07-06 | 住友电气工业株式会社 | Aluminum alloy wire |
| CN101880799A (en) * | 2010-07-13 | 2010-11-10 | 安徽欣意电缆有限公司 | Al-Fe-Zn-Mg rare earth alloy wire and preparation method thereof |
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