CN110157958A - Light aluminum alloy wire harness for automobile and preparation method thereof - Google Patents
Light aluminum alloy wire harness for automobile and preparation method thereof Download PDFInfo
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- CN110157958A CN110157958A CN201910605726.0A CN201910605726A CN110157958A CN 110157958 A CN110157958 A CN 110157958A CN 201910605726 A CN201910605726 A CN 201910605726A CN 110157958 A CN110157958 A CN 110157958A
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- 238000002360 preparation method Methods 0.000 title claims description 19
- 229910001095 light aluminium alloy Inorganic materials 0.000 title abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 45
- 239000004020 conductor Substances 0.000 claims abstract description 43
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 39
- 239000000956 alloy Substances 0.000 claims abstract description 39
- 238000000137 annealing Methods 0.000 claims abstract description 22
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 20
- 239000011591 potassium Substances 0.000 claims abstract description 20
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000005491 wire drawing Methods 0.000 claims abstract description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 14
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003723 Smelting Methods 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 18
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 17
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 14
- 229920005573 silicon-containing polymer Polymers 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 230000032683 aging Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004812 Fluorinated ethylene propylene Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 229920009441 perflouroethylene propylene Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- YZWWAMLWZIHWSG-UHFFFAOYSA-N butanenitrile;hydrochloride Chemical compound Cl.CCCC#N YZWWAMLWZIHWSG-UHFFFAOYSA-N 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 229910052731 fluorine Inorganic materials 0.000 abstract description 6
- 229910052709 silver Inorganic materials 0.000 abstract description 6
- 229910052720 vanadium Inorganic materials 0.000 abstract description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 abstract description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 239000010936 titanium Substances 0.000 description 13
- 229910052782 aluminium Inorganic materials 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 239000004411 aluminium Substances 0.000 description 8
- 239000010949 copper Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- 229910000905 alloy phase Inorganic materials 0.000 description 3
- 230000002929 anti-fatigue Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- 229910018085 Al-F Inorganic materials 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 2
- 229910018179 Al—F Inorganic materials 0.000 description 2
- 229910018520 Al—Si Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910018563 CuAl2 Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910001245 Sb alloy Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 1
- LIQLLTGUOSHGKY-UHFFFAOYSA-N [B].[F] Chemical compound [B].[F] LIQLLTGUOSHGKY-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- JZZIHCLFHIXETF-UHFFFAOYSA-N dimethylsilicon Chemical compound C[Si]C JZZIHCLFHIXETF-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003378 silver Chemical class 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- 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
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/012—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing wire harnesses
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a light aluminum alloy wire harness for an automobile, which comprises a conductor wire core and an outer insulating layer, wherein the conductor wire core comprises the following components: v, 0.2-0.4 wt%, Cu + Mg, 0.01-0.3 wt%, Sb, 0.001-0.01 wt%, Ti, 0.01-0.05 wt%, Ag + F, 0.001-0.002 wt%, Zr, 0.001-0.003 wt%, RE, 0.1-0.3 wt%, and the balance of Al; the alloy is not added with Si and Fe; wherein Ce and La account for more than 50% of the total amount of RE; in the wire drawing process, the conductor wire core is dipped in a mixed solution of potassium fluoborate and polydimethylsiloxane, and then is subjected to intermediate annealing in a nitrogen range containing 5% of oxygen and then is drawn. According to the invention, V, Ti, Ag, F and Zr are used as a reinforcing system and secondary smelting is carried out, so that the breaking elongation and the tensile strength of the aluminum alloy wire harness for the light automobile are improved.
Description
Technical field
The invention belongs to aluminium alloy harness fields, and in particular to a kind of lightweight automotive aluminium alloy harness and its preparation side
Method.
Background technique
Automobile industry development is rapid in world wide at present, and auto industry not only becomes the U.S., the developed countries such as Japan
Pillar industry, also become include it is Chinese including some developing countries pillar industry, as the important auxiliary products of automobile it
No matter one automotive line has good market prospects on scale production quantities or variety requirement.
Automobile develops to miniaturization, lightweight direction simultaneously, and the control circuit of various electronic equipments increases, in motor vehicle
Increase with line position, in order to reach energy-saving purpose, it is desirable that low tension cables for automobiles develops to the performance direction of minification.Cause
This has attempted to mitigate weight using conductor aluminium electric wire made of aluminum material.
Conductor aluminium electric wire made of alumina-base material is due to light-weight and excellent electric conductivity, thus it is high to be routinely used for setting
In the power industry field of frame power transmission line.Aluminium alloy has been increasingly used in the conductor of aluminium electric wire to improve intensity and resist bending
Property, in addition with the increasingly scarcity of copper resource, and the content of aluminium is very abundant, and replace copper to receive the concern of researcher with aluminium, because
This aluminium alloy becomes the hot spot of research as cable conductor.
For example, Japanese Patent Laid-Open 2006-19163 bulletin discloses a kind of aluminium conductor, it is by by aluminium alloy wire
The twisted and manufactured twisted wire of material, the aluminium alloy wires contain Fe, 0.03-0.25 mass %'s of 1.10-1.50 mass %
The Si of Mg, 0.02-0.06% mass %, surplus are Al and inevitable impurity.The aluminium alloy wires that this patent is mentioned is
A kind of hard wire drawing line, so that the conducting wire is although intensity increases, elongation is poor, this leads to resistance to bend(ing) and impact resistance
Property decline.
Chinese patent application document " a kind of automotive line Al-Fe-Cu-Mg-Sb aluminium alloy and its harness (publication number:
CN103725929B a kind of automotive line Al-Fe-Cu-Mg-Sb aluminium alloy and its harness, automotive line Al-Fe-) " are disclosed
Cu-Mg-Sb alloy includes following component: Fe, and content 0.2-1.4wt%, Cu+Mg, content 0.01-0.5wt%, Sb contain
Amount is 0.001-0.2wt%, and surplus is Al and inevitable impurity.The present invention can improve alloy by the way that Fe element is added
Mechanical strength and tensile property, Fe can also significantly improve high-temperature creep resistance, and improve the anti-fatigue performance of alloy,
The intensity and high temperature creep property of alloy can be improved in the addition of Cu+Mg, and can improve anti-fatigue performance, and the addition of Sb can be with
The yield limit of alloy is improved, while making alloy that there is superplasticity to be conducive to be drawn into very thin alloy wire, but the invention
The tensile strength of the aluminium alloy of preparation, elongation at break and unsatisfactory.
Summary of the invention
The object of the present invention is to provide a kind of lightweight automotive aluminium alloy harness, do not add the Fe routinely added and Si member
Element, by adding V, Ti, Ag, tensile strength and elongation at break is substantially improved in the microelements such as F, Zr.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of lightweight automotive aluminium alloy harness, the lightweight automotive aluminium alloy harness include that conductor thread core and outer layer are exhausted
Edge layer, the conductor thread core includes following component: V, content 0.2-0.4wt%, Cu+Mg, content 0.01-0.3wt%,
Sb, content 0.001-0.01wt%, Ti, content 0.01-0.05wt%, Ag+F, content 0.001-0.002wt%, Zr,
Content is 0.001-0.003wt%, RE, content 0.1-0.3wt%, remaining is Al；The alloy does not add Si, Fe；Its
Middle Ce, La account for 50% or more of RE total amount；The conductor thread core first passes through potassium fluoborate, polydimethylsiloxanes in drawing process
After impregnating in the mixed liquor of alkane, wire drawing is carried out after then carrying out intermediate annealing under the nitrogen range containing 5% concentration of oxygen.
Further, the conductor thread core includes following component: V, content 0.3wt%, Cu+Mg, and content is
0.15wt%, Sb, content 0.005wt%, Ti, content 0.03wt%, Ag+F, content 0.0015wt%, Zr, content are
0.002wt%, RE, content 0.15wt%, remaining is Al.
Further, the material of the outer insulation uses polyvinyl chloride, polyvinyl chloride-butyronitrile polymer, polyamides
Amine, fluorinated ethylene propylene (FEP) or polypropylene material.
Further, the conductor thread core is formed by the monofilament bundle strand of 100-200 root 0.2-0.5mm.
Further, the Ag+F realizes addition by the way that AgF is added.
Further, the potassium fluoborate, potassium fluoborate in the mixed liquor of dimethyl silicone polymer, polydimethylsiloxanes
Alkane, the ratio of water are 1:5:100.
The present invention provides a kind of preparation method of lightweight automotive aluminium alloy harness, comprising the following steps: (a) founding: presses
The each component of conductor thread core is added in ratio, and after carrying out melting once processing at 450-500 DEG C, then 800-1000 DEG C of progress is secondary
Melting processing, in 500-600 DEG C of progress ingot casting, is rolled into rod of metal alloy using solution treatment and ageing treatment；(b) wire drawing: will
Potassium fluoborate is passed through by the rod of metal alloy that a is obtained, after impregnating in the mixed liquor of dimethyl silicone polymer, is then containing oxygen 5%
250-300 DEG C of temperature is carried out under the nitrogen range of concentration, intermediate annealing in 4-6 hours, by rod of metal alloy wire drawing to alloy filaments；
(c) it anneals: after the monofilament bundle strand as made from b in the lehr, 5-8 hours will be kept the temperature at 280-320 DEG C, annealing time reaches
After it is required that, the time for being down to 100 DEG C from annealing temperature is 15 minutes or more；(d) conductor will be obtained after alloy filaments bundle strand, softening
Core, conductor thread core extrude one layer of outer insulation outside.
Further, 200 DEG C of temperature of ageing treatment in the step a.
Further, after carrying out melting once processing at 475 DEG C in the step a, then at 900 DEG C of progress secondary smeltings
Reason.
The invention has the following advantages:
The addition of Cu has certain solid solution strengthening effect in the present invention, when furthermore the CuAl2 of Precipitation has apparent
Imitate strengthening effect.Through the addition of reasonably combined Cu, Mg within the scope of 0.01%-0.5%, can improve alloy intensity with
And while high temperature creep property, improve its anti-fatigue performance.The high melting compound that Sb and aluminium are formed is in alloy graining process
In be precipitated first in dispersoid particle, the crystal structure of particle can be used as heterogeneous nucleus, and a large amount of disperse nucleus promotes crystal grain thin
Change, improves the yield limit of alloy.
Fe can usually improve the mechanical strength and tensile property of alloy in the alloy, but nascent richness aluminium α phase Zhi Jing by
It floats in light specific gravity, dystectic richness iron liquid body then deposits to casting bottom and final solidified, leads to occur that bottom contracting is empty, contracting
The problem of pine, influences the plasticity of alloy.Si will lead to tensile property reduction, influence the processing performance of cable, and may
The tired bending property of conductor is reduced, and excessive Si can also reduce electrical property.
In order to overcome drawbacks described above, the Fe and Si routinely added is not added in the present invention, and uses V instead, Ti, Ag, F, Zr, energy
Enough realize better tensile property and elongation at break.It is low to be fluorinated silver point, can be realized in the melting process of use process
Evenly dispersed, fluorine element part and Al element are combined as hardening constituent, improve alloy strength, and silver atoms being capable of stable crystal accumulation
Structure greatly improves the mechanical property and globality of alloy, improves mechanical property, and the addition of V can further improve alloy
Mechanical strength and tensile property, heterogeneous nuclei, play the role of modifying-refining major alloy phase, increase ductility, simultaneously
Its refining alloy phase, makes the phase interface between alloy phase obviously narrow, so as to overcome the addition bring alloy surface of AgF
The addition of the excessive problem of defect, Ti can form aluminum titanium alloy with Al, make up and do not add the decline of Si bring alloy strength
Problem, while it is avoided that caused by Si and draws high performance decline, the density of Ti is similar to Al, in cooling be precipitated, in aluminium alloy
Inside is uniformly dispersed, and so as to the core as nucleation, Mg, Cu is made to condense precipitation in its vicinity, avoids Mg, Cu etc. is heavier
Metal declines the mechanical properties decrease caused by casting bottom, primarily to overcoming Ag, the addition of V, Ti are brought for the addition of Cr
Aluminium alloy hardness decline the problem of, to realize the optimum balance of alloy property.
During the preparation process, the present invention and conventional technique difference is by melting twice handle, first time temperature compared with
Low, second of temperature is higher, to make the substance of dissolution in low temperature, the elements such as AgF, V first dissolve, and occurs after centainly merging with Al,
The dissolution of superhigh temperature is carried out again, to realize the effect of optimal dispersion, can first be carried out to avoid the component other than AgF and Al
Fusion, affects technical effect.
In addition, the present invention is first surface-treated rod of metal alloy in drawing process, pass through potassium fluoborate, poly dimethyl silicon
After the surface treatment of oxygen alkane, so that its surface is covered both the one layer film formed, the defect of alloy surface is filled up, in intermediate annealing
In technique, by a certain temperature, under the atmosphere containing certain oxygen, making the potassium fluoborate in defect, polydimethylsiloxanes
Alkane decomposes, and forms Al-F, and the intermediate states such as Al-Si, Al-B so that defect be made to be filled and led up, while can make the Al and Al-F on surface,
Al-Si, Al-B carry out partial oxidation, form the stable state of oxygen doping, and stabilization is not easy to fall after further defect being promoted to fill up,
To avoid wire drawing caused by surface defect uneven in drawing process, decline so as to cause the mechanical strength of alloy harness.
Specific embodiment
To facilitate a better understanding of the present invention, it is illustrated by the following examples, these examples belong to protection of the invention
Range, but do not limit the scope of the invention.
Embodiment 1
A kind of lightweight automotive aluminium alloy harness, the lightweight automotive aluminium alloy harness include that conductor thread core and outer layer are exhausted
Edge layer, the conductor thread core includes following component: V, content 0.3wt%, Cu+Mg, content 0.15wt%, Sb, and content is
0.005wt%, Ti, content 0.03wt%, Ag+F, content 0.0015wt%, Zr, content 0.002wt%, RE, content
For 0.15wt%, remaining is Al；The alloy does not add Si, Fe；Wherein Ce, La account for 50% or more of RE total amount.
The material of the outer insulation uses pvc material.The conductor thread core by 150 0.2mm list
Tow twists.The Ag+F realizes addition by the way that AgF is added.
The preparation method of lightweight automotive aluminium alloy harness, comprising the following steps: (a) founding: be proportionally added into conductor lines
The each component of core, after carrying out melting once processing at 475 DEG C, then 900 DEG C of progress secondary smelting processing, it is cast at 550 DEG C
Ingot is rolled into rod of metal alloy using solution treatment and ageing treatment；(b) rod of metal alloy obtained by a wire drawing: is passed through into fluoboric acid
Then potassium carries out temperature under the nitrogen range containing 5% concentration of oxygen after impregnating in the mixed liquor of dimethyl silicone polymer
275 DEG C, intermediate annealing in 5 hours, by rod of metal alloy wire drawing to alloy filaments；(c) anneal: will after the monofilament bundle strand as made from b
In annealing furnace, 6.5 hours are kept the temperature at 300 DEG C, after annealing time reaches requirement, the time for being down to 100 DEG C from annealing temperature is
15 minutes or more；(d) conductor thread core will be obtained after alloy filaments bundle strand, softening, and one layer of outer insulation is extruded outside conductor thread core
?.200 DEG C of the temperature of ageing treatment in the step a.The potassium fluoborate, fluorine boron in the mixed liquor of dimethyl silicone polymer
Sour potassium, dimethyl silicone polymer, the ratio of water are 1:5:100.
Embodiment 2
A kind of lightweight automotive aluminium alloy harness, the lightweight automotive aluminium alloy harness include that conductor thread core and outer layer are exhausted
Edge layer, the conductor thread core includes following component: V, content 0.2wt%, Cu+Mg, content 0.3wt%, Sb, and content is
0.001wt%, Ti, content 0.05wt%, Ag+F, content 0.001wt%, Zr, content 0.003wt%, RE, content are
0.1wt%, remaining is Al；The alloy does not add Si, Fe；Wherein Ce, La account for 50% or more of RE total amount.
The material of the outer insulation uses pvc material.The conductor thread core by 200 0.2mm list
Tow twists.The Ag+F realizes addition by the way that AgF is added.
The preparation method of lightweight automotive aluminium alloy harness, comprising the following steps: (a) founding: be proportionally added into conductor lines
The each component of core, after carrying out melting once processing at 500 DEG C, then 800 DEG C of progress secondary smelting processing, it is cast at 600 DEG C
Ingot is rolled into rod of metal alloy using solution treatment and ageing treatment；(b) rod of metal alloy obtained by a wire drawing: is passed through into fluoboric acid
Then potassium carries out temperature under the nitrogen range containing 5% concentration of oxygen after impregnating in the mixed liquor of dimethyl silicone polymer
250 DEG C, intermediate annealing in 6 hours, by rod of metal alloy wire drawing to alloy filaments；(c) anneal: will after the monofilament bundle strand as made from b
In annealing furnace, 8 hours are kept the temperature at 280 DEG C, after annealing time reaches requirement, the time for being down to 100 DEG C from annealing temperature is 15
Minute or more；(d) conductor thread core will be obtained after alloy filaments bundle strand, softening, extrudes one layer of outer insulation i.e. outside conductor thread core
It can.200 DEG C of the temperature of ageing treatment in the step a.The potassium fluoborate, fluoboric acid in the mixed liquor of dimethyl silicone polymer
Potassium, dimethyl silicone polymer, the ratio of water are 1:5:100.
Embodiment 3
A kind of lightweight automotive aluminium alloy harness, the lightweight automotive aluminium alloy harness include that conductor thread core and outer layer are exhausted
Edge layer, the conductor thread core includes following component: V, content 0.4wt%, Cu+Mg, content 0.01wt%, Sb, and content is
0.01wt%, Ti, content 0.01wt%, Ag+F, content 0.002wt%, Zr, content 0.001wt%, RE, content are
0.3wt%, remaining is Al；The alloy does not add Si, Fe；Wherein Ce, La account for 50% or more of RE total amount.
The material of the outer insulation uses pvc material.The conductor thread core by 100 0.2mm list
Tow twists.The Ag+F realizes addition by the way that AgF is added.
The preparation method of lightweight automotive aluminium alloy harness, comprising the following steps: (a) founding: be proportionally added into conductor lines
The each component of core, after carrying out melting once processing at 450 DEG C, then 1000 DEG C of progress secondary smelting processing, it is cast at 500 DEG C
Ingot is rolled into rod of metal alloy using solution treatment and ageing treatment；(b) rod of metal alloy obtained by a wire drawing: is passed through into fluoboric acid
Then potassium carries out temperature under the nitrogen range containing 5% concentration of oxygen after impregnating in the mixed liquor of dimethyl silicone polymer
300 DEG C, intermediate annealing in 4 hours, by rod of metal alloy wire drawing to alloy filaments；(c) anneal: will after the monofilament bundle strand as made from b
In annealing furnace, 5 hours are kept the temperature at 320 DEG C, after annealing time reaches requirement, the time for being down to 100 DEG C from annealing temperature is 15
Minute or more；(d) conductor thread core will be obtained after alloy filaments bundle strand, softening, extrudes one layer of outer insulation i.e. outside conductor thread core
It can.200 DEG C of the temperature of ageing treatment in the step a.The potassium fluoborate, fluoboric acid in the mixed liquor of dimethyl silicone polymer
Potassium, dimethyl silicone polymer, the ratio of water are 1:5:100.
Comparative example 1
It is essentially identical with the preparation process of embodiment 1, it has only the difference is that preparing the original of lightweight automotive aluminium alloy harness
Lack V, Ti, Ag, F, Zr in material.
Comparative example 2
It is essentially identical with the preparation process of embodiment 1, it has only the difference is that preparing the original of lightweight automotive aluminium alloy harness
Lack V in material.
Comparative example 3
It is essentially identical with the preparation process of embodiment 1, it has only the difference is that preparing the original of lightweight automotive aluminium alloy harness
Lack Ti in material.
Comparative example 4
It is essentially identical with the preparation process of embodiment 1, it has only the difference is that preparing the original of lightweight automotive aluminium alloy harness
Lack Ag, F in material.
Comparative example 5
It is essentially identical with the preparation process of embodiment 1, it has only the difference is that preparing the original of lightweight automotive aluminium alloy harness
Lack Zr in material.
Comparative example 6
It is essentially identical with the preparation process of embodiment 1, it has only the difference is that carrying out melting once processing at 730 DEG C.
Comparative example 7
It is public according to " a kind of automotive line Al-Fe-Cu-Mg-Sb aluminium alloy and its harness (publication number: CN103725929B) "
It is prepared by the method for the embodiment 1 opened.
Comparative example 8
It is essentially identical with the preparation process of embodiment 1, it has only the difference is that wire drawing: the rod of metal alloy obtained by a is subjected to temperature
275 DEG C of degree, intermediate annealing in 5 hours, by rod of metal alloy wire drawing to alloy filaments.
To alloy filaments made from embodiment 1-3 and comparative example 1-8, the diameter of alloy filaments is 0.2mm, is measured disconnected
Elongation and tensile strength are split, measurement result is as shown in the table.
| Experimental project | Tensile strength (MPa) | Elongation at break |
| Embodiment 1 | 350 | 23 |
| Embodiment 2 | 345 | 22 |
| Embodiment 3 | 341 | 21 |
| Comparative example 1 | 213 | 11 |
| Comparative example 2 | 304 | 16 |
| Comparative example 3 | 314 | 18 |
| Comparative example 4 | 298 | 19 |
| Comparative example 5 | 286 | 17 |
| Comparative example 6 | 324 | 19 |
| Comparative example 7 | 276 | 17 |
| Comparative example 8 | 332 | 17 |
As seen from the above table: by the data of embodiment 1-3 and comparative example 1-7 as it can be seen that embodiment 1 is optimum embodiment.By reality
The data of example 1 and comparative example 1-5 are applied as it can be seen that V, Ti, Ag, F, Zr are preparing lightweight automotive with playing collaboration in aluminium alloy harness
Effect, collaboration improve the elongation at break and tensile strength of lightweight automotive aluminium alloy harness.By embodiment 1 and comparative example 6
Data have superior technique effect as it can be seen that by secondary smelting.Compared by embodiment 1 and comparative example 8 it is found that in wire drawing
Journey is declined without processing, the mechanical performance of product.
The above content is it cannot be assumed that present invention specific implementation is only limited to these instructions, for the technical field of the invention
Those of ordinary skill for, under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all answers
When being considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (9)
1. a kind of lightweight automotive aluminium alloy harness, which is characterized in that the lightweight automotive aluminium alloy harness includes conductor lines
Core and outer insulation, the conductor thread core includes following component: V, content 0.2-0.4wt%, Cu+Mg, content 0.01-
0.3wt%, Sb, content 0.001-0.01wt%, Ti, content 0.01-0.05wt%, Ag+F, content 0.001-
0.002wt%, Zr, content 0.001-0.003wt%, RE, content 0.1-0.3wt%, remaining is Al；The alloy is not
Add Si, Fe；Wherein Ce, La account for 50% or more of RE total amount；The conductor thread core first passes through potassium fluoborate in drawing process,
After impregnating in the mixed liquor of dimethyl silicone polymer, intermediate annealing then is carried out under the nitrogen range containing 5% concentration of oxygen
After carry out wire drawing.
2. lightweight automotive according to claim 1 aluminium alloy harness, which is characterized in that the conductor thread core includes following
Ingredient: V, content 0.3wt%, Cu+Mg, content 0.15wt%, Sb, content 0.005wt%, Ti, content are
0.03wt%, Ag+F, content 0.0015wt%, Zr, content 0.002wt%, RE, content 0.15wt%, remaining is Al.
3. lightweight automotive according to claim 1 aluminium alloy harness, which is characterized in that the material of the outer insulation
Material uses polyvinyl chloride, polyvinyl chloride-butyronitrile polymer, polyamide, fluorinated ethylene propylene (FEP) or polypropylene material.
4. lightweight automotive according to claim 1 aluminium alloy harness, which is characterized in that the conductor thread core is by 100-
The monofilament bundle strand of 200 0.2-0.5mm forms.
5. lightweight automotive according to claim 1 aluminium alloy harness, which is characterized in that the Ag+F passes through addition
AgF realizes addition.
6. according to lightweight automotive described in claim 1 aluminium alloy harness, which is characterized in that the potassium fluoborate, poly dimethyl
Potassium fluoborate in the mixed liquor of siloxanes, dimethyl silicone polymer, the ratio of water are 1:5:100.
7. a kind of preparation method of lightweight automotive according to claim 1-6 aluminium alloy harness, feature exist
In, comprising the following steps: (a) founding: being proportionally added into each component of conductor thread core, and melting once is carried out at 450-500 DEG C
After processing, then 800-1000 DEG C of progress secondary smelting processing, in 500-600 DEG C of progress ingot casting, using solution treatment and timeliness
Processing is rolled into rod of metal alloy；(b) rod of metal alloy obtained by a wire drawing: is passed through into potassium fluoborate, the mixed liquor of dimethyl silicone polymer
After middle dipping, 250-300 DEG C of temperature is then carried out under the nitrogen range containing 5% concentration of oxygen, 4-6 hours centres are moved back
Fire, by rod of metal alloy wire drawing to alloy filaments；(c) it anneals: will be after the monofilament bundle strand as made from b in the lehr, in 280-320 DEG C
Lower heat preservation 5-8 hours, after annealing time reaches requirement, the time for being down to 100 DEG C from annealing temperature is 15 minutes or more；(d) will
Conductor thread core is obtained after alloy filaments bundle strand, softening, and one layer of outer insulation is extruded outside conductor thread core.
8. the lightweight automotive according to claim 7 preparation method of aluminium alloy harness, which is characterized in that the step a
200 DEG C of the temperature of middle ageing treatment.
9. the lightweight automotive according to claim 7 preparation method of aluminium alloy harness, which is characterized in that the step a
In carry out melting once processing at 475 DEG C after, then 900 DEG C of progress secondary smelting processing.
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| CN201910605726.0A CN110157958A (en) | 2019-07-05 | 2019-07-05 | Light aluminum alloy wire harness for automobile and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111004947A (en) * | 2019-11-25 | 2020-04-14 | 连云港星耀材料科技有限公司 | Preparation method of aluminum alloy hub |
| CN115602354A (en) * | 2022-09-30 | 2023-01-13 | 江苏国嘉导体技术科技有限公司（Cn） | Light aluminum alloy wire harness for automobile and processing technology thereof |
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| CN109023167A (en) * | 2018-10-26 | 2018-12-18 | 长沙浩然医疗科技有限公司 | A kind of titanium alloy plate and its processing method |
| CN109161740A (en) * | 2018-11-02 | 2019-01-08 | 湖南恒佳新材料科技有限公司 | A kind of automobile structure 6 line aluminium alloys and preparation method |
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| CN102637485A (en) * | 2012-05-07 | 2012-08-15 | 东莞市闻誉实业有限公司 | Aluminum alloy wire and method for preparing aluminum alloy wire |
| CN103725929A (en) * | 2013-12-26 | 2014-04-16 | 安徽欣意电缆有限公司 | Al-Fe-Cu-Mg-Sb aluminum alloy for automotive wire and wiring harness made of aluminum alloy |
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| CN111004947A (en) * | 2019-11-25 | 2020-04-14 | 连云港星耀材料科技有限公司 | Preparation method of aluminum alloy hub |
| CN111004947B (en) * | 2019-11-25 | 2020-12-22 | 连云港星耀材料科技有限公司 | Preparation method of aluminum alloy hub |
| CN115602354A (en) * | 2022-09-30 | 2023-01-13 | 江苏国嘉导体技术科技有限公司（Cn） | Light aluminum alloy wire harness for automobile and processing technology thereof |
| CN115602354B (en) * | 2022-09-30 | 2023-08-25 | 江苏国嘉导体技术科技有限公司 | Light aluminum alloy wire bundle for automobile and processing technology thereof |
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