CN105118549B - Aluminum conductor automobile wire and preparation method thereof - Google Patents
Aluminum conductor automobile wire and preparation method thereof Download PDFInfo
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- CN105118549B CN105118549B CN201510582944.9A CN201510582944A CN105118549B CN 105118549 B CN105118549 B CN 105118549B CN 201510582944 A CN201510582944 A CN 201510582944A CN 105118549 B CN105118549 B CN 105118549B
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Abstract
The present invention discloses an aluminum conductor automobile wire and a preparation method thereof. The aluminum conductor automobile wire comprises: a body made of aluminum and having a section with a filled rectangle, the section length being 10 to 30 mm, the section width being 0.8 to 5.1 mm; and an insulating layer coating the outer surface of the body and having a section with a hollow rectangle, the section length being 11.5 to 34 mm, the section width being 2.3 to 9.1 mm. According to the aluminum conductor automobile wire in the embodiment of the invention, compared with an aluminum conductor with stranded structure and same rated current carrying capacity, the aluminum conductor automobile wire is decreased in aluminum products by 3% to 7%, the elongation at break of the aluminum conductor automobile wire is higher than that of a copper stranded conductor, the aluminum conductor wire with the rectangular section is compact in structure, and the size thereof is 10% to 20% smaller than the size of the round stranded aluminum conductor wire; moreover, the aluminum conductor automobile wire is very easy to be putted in an automobile, with saving space.
Description
Technical field
The present invention relates to automobile electric wire technical field, more particularly, to a kind of aluminium conductor automobile electric wire and its preparation side
Method.
Background technology
Automobile industry has started to pay close attention to the use of aluminium conductor at present.It is to be based on：
Copper valency skyrockets, and the price difference of copper aluminum is increasing；
Vehicle energy saving, environmentally friendly cry more and more higher, automotive light weight technology requires increasingly urgent.
As the good conductivity of copper conductor is in aluminium conductor, and circular lay configuration aluminium conductor surface easily aoxidizes, and cleans
Poor, low production efficiency is spent, so as to affect the processing of automotive wire bundle and the reliability of auto efficiency circuit, current automobile is thus resulted in
Electric wire is still based on copper conductor.
Aluminium conductor automobile electric wire can't be accepted extensively by industry at present, tracing it to its cause the following aspects of mainly have：
A) difference of copper conductor and circular lay configuration aluminium conductor electric property.The resistivity of copper conductor is 0.01724 Ω
mm2/ m, conductivity are 100IACS；The resistivity of aluminium conductor is 0.02817 Ω mm2/ m, electrical conductivity are 61IACS.Therefore, in phase
With under rated current-carrying capacity, the sectional area of lay configuration aluminium conductor is bigger by 68% than copper conductor, is even led from lay configuration aluminum
Big 1-2 specification of the body than copper conductor, corresponding automobile electric wire diameter will also increase 10-20%.
B) difference of copper conductor and circular lay configuration aluminium conductor mechanical performance.The tensile strength of copper conductor be 200MPa,
Elongation at break is 20%；The tensile strength of lay configuration aluminium conductor is 70-120MPa, and elongation at break is 16%.Therefore, phase
For, the bending property of lay configuration aluminium conductor is not so good as copper conductor, and during the use of automobile electric wire, lay configuration aluminum is led
Body automobile electric wire easily produces fracture of wire, stranded phenomenon, causes certain difficulty to processing.
C) spark-over rate is high aborning than copper conductor automobile electric wire for circular lay configuration aluminium conductor automobile electric wire.Tradition
The processing of automobile electric wire conductor mainly adopt wire drawing, anneal, stranded process, and the mechanical performance of aluminum is not as the machinery of copper
Performance, case hardness are low, and frictional force is big, therefore aluminium conductor compared with copper conductor in the conductor course of processing easily produces string diameter and breaks
Split, the defect such as overlap and burr.These defects exactly one of easily breakdown principal element of lay configuration aluminium conductor automobile electric wire,
So as to objectively limit widely using for aluminium conductor.
D) circular lay configuration aluminium conductor surface cleaning is highly difficult, in the manufacturing, automotive wire bundle processing and automobilism
In, surface is easy to oxidation, and this causes difficulty to the joint of wire harness processing, is the main bottle for restricting automobile application popularization at present
Neck.Particularly automobile electric wire in use, as the oxidation of conductor progressively expands, causes the resistance of conductor to increase, causes
Automobile electric wire temperature rises, and affects automobile electric wire service life.If automobile electric wire maker fundamentally can not be solved
State the defect problem of aluminium conductor, then even if copper, aluminum cost performance have again big difference, it is also difficult to make automobile industry receive automobile electricity
Widely used aluminium conductor in line.
Automobile electric wire conductor is the manufacture of traditional aluminium conductor of circular lay configuration, needs first wire drawing, then multiply again
Stranded molding；If automobile electric wire is compact conductor, in addition it is also necessary to pressed using layering；It is abnormal in order to eliminate the lattice that cold working causes
Become, hardened material, in addition it is also necessary to carry out the anneal (annealing) of one or many.
In the production process of aluminium conductor, aluminium monofilament can be subject to multiple mechanical pull, integer, easily cause the machine on its surface
Tool is damaged, conductor hardening, conductor resistance increase.And the low production efficiency of aluminium conductor, high energy consumption, quality are difficult control.Therefore,
Existing to improve needs.
The content of the invention
It is contemplated that at least solving one of above-mentioned technical problem to a certain extent.For this purpose, the present invention proposes a kind of aluminum
Conductor automobile electric wire, low cost take up room little, and contact resistance is little, is conducive to ultrasonic bonding.
Present invention also offers a kind of preparation method of the aluminium conductor automobile electric wire according to above-described embodiment.
The aluminium conductor automobile electric wire of embodiment according to a first aspect of the present invention, including：Body, the body are made of aluminum,
The section of the body is formed as Filled Rectangle, and the cross-sectional length of the body is 10-30mm, and the cross-sectional width of the body is
0.8-5.1mm；Insulating barrier, the insulating barrier are coated on the outer surface of the body, and the section of the insulating barrier is formed as empty
Heart rectangle, the cross-sectional length of the insulating barrier is 11.5-34mm, and the cross-sectional width of the insulating barrier is 2.3-9.1mm.
Aluminium conductor automobile electric wire according to embodiments of the present invention, compared with lay configuration aluminium conductor, in the specified load of identical
Under flow, aluminium 3%-7% can be saved, elongation at break is higher than copper stranded conductor, the aluminum conductor cable structure of square-section
Compact, size reduces 10%-20% or so than circular stranded aluminum conductor cable, and is very easy in the car lay, and saves empty
Between, the semiconductor process of aluminium conductor electric wire may insure the control of conductor molded line precision and dimensional discrepancy, and contact resistance is little, has
Beneficial to ultrasonic bonding.
In addition, aluminium conductor automobile electric wire according to the above embodiment of the present invention, can also have following additional technology special
Levy：
According to one embodiment of present invention, the aluminium conductor automobile electric wire in 20 DEG C of largest conductor resistance in 0.195-
Between 3.97m Ω/m.
According to one embodiment of present invention, four of the section of the body it is angular become rounding corner structure, it is described absolutely
Four of the section of edge layer angular to become rounding corner structure.
According to one embodiment of present invention, the sectional area of the body is in 7.24-159mm2Between.
The preparation method of the aluminium conductor automobile electric wire of embodiment, comprises the following steps according to a second aspect of the present invention：S1, carry
For the aluminium bar of surface cleaning, and aligned, make flexibility be less than 2mm/m；S2, the aluminium bar after aligning is cleaned；
S3, the aluminium bar after cleaning is carried out continuously extruded, obtain the solid body that section is formed as rectangle；S4, solid body is carried out
It is insulating exruded with the periphery of solid body formed insulating barrier, obtain the aluminium conductor automobile electric wire.
According to one embodiment of present invention, step S2 includes：S21, the aluminium bar after aligning is scrubbed to go
Except the chip and pollutant of blank surface；S22, be 4%-6% with concentration, cleanout fluid that pH value is 7-9 it is right at 55 DEG C -65 DEG C
Aluminium bar is cleaned to remove the greasy dirt and oxidation foul of aluminium rod surface, and scavenging period is more than 5s；S23, with distilled water to aluminium bar
Cleaned.
According to one embodiment of present invention, step S3 includes：S31, the aluminium bar is carried out continuously extruded, obtained
Section is formed as the solid body of rectangle；S32, by the solid body water cooled groove water-cooled to 35 DEG C -45 DEG C, lead into tension force
Coil holder delivers to coiling machine；S33, by the solid body through meter-measuring device and take-up, store up on bobbin.
According to one embodiment of present invention, in step S3, the aluminium bar is squeezed using continuous extruder
Pressure, extrusion compression ratio are 1:105, extrusion temperature is 400 DEG C -600 DEG C.
According to one embodiment of present invention, step S4 includes：S41, by the solid body unwrapping wire；S42, by institute
State solid body and be preheated to 90 DEG C -110 DEG C；S43, carry out on the solid body outer surface it is insulating exruded, with solid
The periphery of body forms insulating barrier, obtains the aluminium conductor automobile electric wire.
According to one embodiment of present invention, in step S4, using 90 plastic extruders of Φ to described solid
Body carry out it is insulating exruded, insulating exruded compression ratio be 1:1.25, insulating exruded temperature is 160 DEG C -200 DEG C.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
It is substantially and easy to understand, wherein：
Fig. 1 is the profile of aluminium conductor automobile electric wire according to embodiments of the present invention；
Fig. 2 be aluminium conductor automobile electric wire according to embodiments of the present invention preparation method in continuous extruder structural representation
Figure；
Fig. 3 is the flow chart of the preparation method of aluminium conductor automobile electric wire according to embodiments of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Accompanying drawing is combined first below specifically describes aluminium conductor automobile electric wire 100 according to embodiments of the present invention.
As shown in figure 1, aluminium conductor automobile electric wire 100 according to embodiments of the present invention includes body 10 and insulating barrier 20.
Specifically, body 10 is made of aluminum, and the section of body 10 is formed as Filled Rectangle, and the cross-sectional length of body 10 is
10-30mm, the cross-sectional width of body 10 is 0.8-5.1mm.Insulating barrier 20 is coated on the outer surface of body 10, insulating barrier 20
Section is formed as hollow rectangle, and the cross-sectional length of insulating barrier 20 is 11.5-34mm, and the cross-sectional width of insulating barrier 20 is 2.3-
9.1mm。
In other words, aluminium conductor automobile electric wire 100 according to embodiments of the present invention is mainly made up of body 10 and insulating barrier 20,
Wherein, the section of body 10 is formed as solid rectangle, and the length on the long side of rectangular body 10 in the scope of 10-30mm
Interior, the width of broadside is in the range of 0.8-5.1mm.The section of insulating barrier 20 is formed as being coated on the hollow of the periphery of body 10
Rectangle, and the length on the long side of rectangular dielectric layer 20, in the range of 11.5-34mm, the width of broadside is 2.3-9.1mm's
In the range of.
Thus, aluminium conductor automobile electric wire 100 according to embodiments of the present invention, compared with lay configuration aluminium conductor, identical
Rated current-carrying capacity under, can save aluminium 3%-7%, elongation at break is higher than copper stranded conductor, the aluminium conductor of square-section
The construction of cable is compact, and size reduces 10%-20% or so than circular stranded aluminum conductor cable, and is very easy to cloth in the car
Put, save space, the semiconductor process of aluminium conductor electric wire may insure the control of conductor molded line precision and dimensional discrepancy, and contact
Resistance is little, is conducive to ultrasonic bonding.
According to one embodiment of present invention, aluminium conductor automobile electric wire 100 in 20 DEG C of largest conductor resistance in 0.195-
Between 3.97m Ω/m.Preferably, four of the section of body 10 it is angular become rounding corner structure, the four of the section of insulating barrier 20
It is individual angular to become rounding corner structure.Further, the sectional area of body 10 is in 7.24-159mm2Between.
The long edge lengths in the section of aluminium conductor automobile electric wire 100 according to embodiments of the present invention can be divided into 10mm, 15mm,
20mm, 25mm, 30mm totally 5 specifications, to adapt to and facilitate the design of connection terminal, broadside thickness mainly to meet sectional area need
Will, and sectional area is the resistance requirement for ensureing electric wire, the sectional area of aluminium conductor automobile electric wire 100 according to embodiments of the present invention and
Resistance requirement meets the test and requirement of international standard ISO6722-2 road vehicle 60V and 600V electric wire aluminium conductor electric wire
In regulation.
Preferably, the specifications parameter of aluminium conductor automobile electric wire 100 according to embodiments of the present invention can be using listed by table 1 below
The parameter for going out.
The preferred specifications parameter of 1 aluminium conductor automobile electric wire of table
Aluminium conductor automobile wire 100 according to embodiments of the present invention has compared to traditional lay configuration aluminium conductor automobile electric wire
Have the following advantages：
The resistivity of the solid aluminium conductor automobile wire of soft aluminum the firstth, according to embodiments of the present invention 100 is 0.0272 Ω
mm2/ m or so, electrical conductivity are 63.2IACS or so, and tensile strength is 60-80MPa, elongation at break is 28-30%.With it is stranded
Structure aluminium conductor is compared, and electrical conductivity improves 3%-7%, under identical rated current-carrying capacity, can save aluminium 3%-7%,
Elongation at break is already above traditional copper stranded conductor.
Secondth, solid aluminium conductor automobile wire 100 according to embodiments of the present invention is equivalent to activity coefficient 1, and conventional junction
The activity coefficient of the round conductor of structure is about 0.75, even if adopt again pressing measure, the conductor of circular lay configuration aluminium cable
Activity coefficient is also only capable of reaching 0.9 or so, in contrast, the reduced diameter of soft aluminum solid conductor 7%-12%.
Therefore, 100 compact conformation of aluminium conductor automobile wire according to embodiments of the present invention, size is than circular stranded aluminum conductor
Cable reduces 10%-20% or so, and is very easy in the car lay, save space.
The semiconductor process of aluminium conductor automobile wire 100 the 3rd, according to embodiments of the present invention may insure conductor molded line essence
The control of degree and dimensional discrepancy.The profile of extrusion soft aluminum molded line with is controlled mainly in the design of mould, as long as mould meets design
Require, it is ensured that product quality, unlike traditional wire drawing, stranding process, is frequently subjected to monofilament quality, the impact of string diameter tolerance
And the impact of mould configuration.
4th, air-gap-free inside the wire of aluminium conductor automobile wire 100 according to embodiments of the present invention, insulating barrier 20 and this
Body 10 is in close contact, and gap-ratio stranded conductor is little, and each single wire surface product of soft aluminum solid conductor surface area ratio stranded conductor
Summation is little, little with air contact surfaces, so greatly reducing the probability that conductor is oxidized.
Additionally, aluminium conductor automobile wire 100 according to embodiments of the present invention is also facilitated at the conductor tab of wire harness processing
Reason, as long as solid aluminum conductive surface is slightly processed just normally can use, is not in as the contact of lay configuration aluminium conductor end points
The phenomenon such as bad, contact point resistance is big.
The smooth rounding of conductive surface of aluminium conductor automobile wire 100 the 5th, according to embodiments of the present invention, cleans without dirt
Dye, does not have the rough vestige of monofilament surface of lay configuration aluminium conductor, and substantial amounts of greasy dirt, is very beneficial for ultrasound wave
Welding, solves the bottleneck problem of aluminium conductor wiring harness connector.
The processing charges of aluminium conductor automobile wire 100 the 6th, according to embodiments of the present invention are than stranded circular configuration aluminium conductor
Lack, and with short production cycle, low cost.During production, it is possible to use LJ300A aluminum continuous extruders, charging is from a diameter of
9.5mm aluminium bars, can extrude 2 conductors simultaneously, and extruded velocity is 10-15m/min.Unlike circular lay configuration aluminium conductor, need
The multiple working procedure such as wire drawing, stranded, calendering formation is wanted, complex process, long the production cycle, conductor turnaround time are long, take production money
Jin great.
The preparation method of aluminium conductor automobile electric wire according to embodiments of the present invention is specifically described below in conjunction with the accompanying drawings.
As shown in figure 3, the preparation method of aluminium conductor automobile electric wire according to embodiments of the present invention is comprised the following steps：
S1, the aluminium bar that surface cleaning is provided, and aligned, make flexibility be less than 2mm/m.
S2, the aluminium bar after aligning is cleaned.
S3, the aluminium bar after cleaning is carried out continuously extruded, obtain the solid body 10 that section is formed as rectangle.
S4, by solid body 10 carry out it is insulating exruded with the periphery of solid body 10 formed insulating barrier 20, obtain aluminum and lead
Body automobile electric wire.
It is possible thereby to aluminium conductor automobile wire 100 according to the above embodiment of the present invention is obtained, the preparation method is operable
Property it is high, feasibility is strong, and with short production cycle, with low cost, is adapted to promote the use of.
Specifically, the preparation method of aluminium conductor automobile electric wire according to embodiments of the present invention mainly includes rectangular solid aluminum sheet
The extrusion molding and rectangular aluminum automobile electric wire of body it is insulating exruded.Extrusion molding process to rectangular solid aluminum body first below
It is described in detail.
The operation that the continuous extrusion production line of rectangular solid body is main includes：
It is cold that blank unwrapping wire base bar feeding straightener scrubs ultrasound wave cleaning continuous extruder
But metering admission machine.
Specifically, blank unwrapping wire is first carried out first:Using blank be diameter Ф 9.5mm ± 0.2mm aluminum for electric engineering bars, material
Matter meets the AA1350 trades mark, and material surface must be cleaned.
Then, by base bar feeding straightener：After aluminium bar is stored in payingoff disk frame, intersects straightener through multiple roll and aligned,
Make flexibility less than 2mm/m, so that energy is straight, be smoothly through ultrasonic cleaning equipment, surface will not be scraped off or blocked.
Then blank is cleaned, cleaning process, i.e. step S2 mainly includes：
S21, the aluminium bar after aligning is scrubbed to remove the chip and pollutant of blank surface.
S22, be 4%-6% with concentration, the cleanout fluid that pH value is 7-9 at 55 DEG C -65 DEG C cleaned to go to aluminium bar
Except the greasy dirt and oxidation foul of aluminium rod surface, scavenging period is more than 5s.
S23, aluminium bar is cleaned with distilled water.
That is, cleaning process can include scrub process and ultrasound wave cleaning process, it is specific as follows：
Scrub：Remove chip, pollutant of blank surface etc..
Ultrasound wave is cleaned：The greasy dirt of aluminium rod surface, oxidation foul etc. is removed, in order to avoid corrode compression tool and bring product into
It is interior.Cleanout fluid can add scavenger specially, and 5% or so, pH value determines concentration according to the pollution level of blank surface, typically
For 8 ± 1, then cleaned with pure distilled water again.Wherein, the optimal clean temperature of cleanout fluid is 60 ± 5 DEG C, clear by adjustment
Washing segment length coordinates speed of production to ensure scavenging period more than 5 seconds, it is possible thereby to ensure cleaning performance.
Finally the aluminium bar after cleaning is carried out continuously extruded, the solid body 10 that section is formed as rectangle is just obtained.Tool
Body ground, step S3 can include：
S31, aluminium bar is carried out continuously extruded, obtain the solid body 10 that section is formed as rectangle.
S32, by 10 water cooled groove water-cooled of solid body to 35 DEG C -45 DEG C, deliver to coiling machine into tension force lead frame.
S33, by solid body 10 through meter-measuring device and take-up, store up on bobbin.
Wherein, in step s3, aluminium bar is extruded using continuous extruder, extrusion compression ratio is 1:105, extrusion temperature
Spend for 400 DEG C -600 DEG C.
As shown in Fig. 2 Fig. 2 shows the continuous extruder 200 extruded to aluminium bar, continuous extruder 200 can be wrapped
Extruding wheel 201, boots housing 202 and mould 203 is included, in boots housing 202, high pressure chest is defined, blank 204 is through continuous extruder
200 extruding, obtain the body 10 of rectangular cross-section.
Specifically, continuous extruder 200 operationally, by extruding wheel 201 and boots housing 202 to aluminium bar, i.e. blank 204
What is carried out continuously frictionally heats, and aluminum is softened by boots housing 202 in high pressure intracavity, then by the aluminum extruded molding of molten condition, you can
Obtain the body 10 of rectangular cross-section.
Wherein, the parameter setting of continuous extruder 200 is as follows：
Conductor extrudes compression ratio：1:105；
Conductor extrusion temperature：400-600℃.
Under conditions of High Temperature High Pressure, the defect inside blank can be eliminated during continuously extruded, can be obtained excellent
Good mechanical property and heterogeneous microstructure, and product surface will not produce peeling, the hair that Conventional processing methods easily occur
The phenomenons such as thorn, surface quality are good.In the course of processing, conductor is in hot melt state, and after cooling, the lattice of material is consistent, because
And cause the machinery of aluminium conductor, electric property to be significantly larger than the performance of the aluminium conductor of traditional handicraft processing.Eliminate biography again simultaneously
The annealing operation of system, shortens the production cycle.
When needing to change the specification of production solid conductor, it is only necessary to change correspondence mould, raw material is also used
The raw material (a diameter of Ф 9.5mm ± 0.2mm aluminum for electric engineering bars) of unified specification, specification switching very aspect.
After the body 10 for obtaining square-section, water cooled groove by its direct water-cooling to 40 DEG C or so, tension force of being allowed for access
Lead frame delivers to coiling machine, in order to avoid deformation is produced once again in wire and coiling process.Then by body 10 through meter-measuring device and
Take-up, stores up the preparation that just can complete body 10 on the bobbin for facilitating subsequent handling to use.
The extrusion of insulating barrier 20 on body 10 according to embodiments of the present invention is detailed below.
Specifically, according to one embodiment of present invention, step S4 includes：
S41, by 10 unwrapping wire of solid body.
S42, solid body 10 is preheated to into 90 DEG C -110 DEG C.
S43, carry out on 10 outer surface of solid body it is insulating exruded, to form insulating barrier in the periphery of solid body 10
20, obtain aluminium conductor automobile electric wire.
Wherein, in step s 4, insulating exruded, insulating exruded pressure is carried out to solid body 10 using 90 plastic extruders of Φ
Contracting is than being 1:1.25, insulating exruded temperature is 160 DEG C -200 DEG C.
That is, the PVC insulating barriers 20 of the aluminium conductor automobile electric wire 100 of square-section according to embodiments of the present invention
Manufacture is completed on 90 plastic extrusion production lines of Φ.Its master operation includes：
The insulating exruded cooling Spark plug optical fiber sensor take-up of conductor unwrapping wire conductor pre-heating.
Specifically, column conductor unwrapping wire, conductor pay-off equipment and conventional stranded conductor electric wire production equipment basic are entered first
Cause.Then conductor pre-heating is carried out, using online conductor pre-heating equipment, conductor temperature 100 DEG C or so is heated to into, eliminates insulation
Internal stress.Then carry out insulating exruded, using 90 plastic extruders of Φ, plastic extruder arrange parameter is as follows：
Insulating exruded compression ratio：1:1.25；
Insulating exruded temperature：160～200 DEG C；
Insulating exruded mould can adopt plsitive mold.The insulating exruded PVC material for using is 5105 type automobile electric wires
PP Pipe Compound, long-term heat resisting temperature are 105 DEG C.Insulating exruded each warm area temperature is by each bringing-up section from 170 DEG C to 195 DEG C.Thus may be used
To realize extruding insulating barrier 20 on body 10, so as to obtain aluminium conductor automobile electric wire 100.
Aluminium conductor automobile electric wire 100 according to embodiments of the present invention and its preparation side are described with reference to specific embodiment
Method.
Embodiment 1
60mm is produced using the preparation method of the aluminium conductor automobile electric wire 100 of the embodiment of the present invention2PVC insulating rectangular realities
Heart aluminium conductor automobile electric wire 100, as embodiment, prepares circular stranded aluminium cable using traditional method, as a comparison case, will be real
Applying example and comparative example carries out full performance test, and particular curve test, to investigating the machine using solid conductor automobile electric wire
Tool performance and bending property.Experimental result is shown in Table 2.
2 automobile electric wire mechanical performance of table and bending property detection table
Through detection, properties all conformance with standard of aluminium conductor automobile electric wire 100 according to embodiments of the present invention specify.
For automobile electric wire, although standard is not specified by specific flexibility performance assessment criteria, but in order to the solid aluminium conductor of comparison with it is stranded
The difference of structure aluminium conductor, inventor are done static buckling using the automobile electric wire of the different conductor structure of same specification and are tested and past
Multiple bend test, tests and shows that the bend performance data of solid aluminium conductor and lay configuration aluminium conductor is basically identical, in bending half
Footpath phase is simultaneously as rectangular wire effectively reduces the diameter of wire (width) in actual flexion face, so and circular lay configuration
It is suitable that aluminium cable compares bending force.And cyclic bending number of times rectangular solid aluminium conductor automobile electric wire and circular stranded aluminium cable ratio have
Reduced.
In addition, the rectangle aluminium conductor automobile electric wire 100 of same size is adopted compared with circular lay configuration conductor material usage
Automobile electric wire with Filled Rectangle aluminium conductor is fewer than the material that circular lay configuration aluminium conductor automobile electric wire is used, wherein aluminum
Conductor has saved 7%, and insulant has saved 5-7%, and along with saving of work and time, the cost of solid aluminium conductor automobile electric wire can be with
Decline more than 10% than the cost of lay configuration aluminium conductor automobile electric wire.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation of the instruction such as pin ", " counterclockwise " or position relationship are, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；It can be machine
Tool connects, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included, it is also possible to be not directly contact including the first and second features but by it
Between other characterisation contact.And, fisrt feature second feature " on ", " top " and " above " it is special including first
Levy directly over second feature and oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature directly over second feature and oblique upper, or be merely representative of
Fisrt feature level height is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example are referred to necessarily.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is in the principle and objective without departing from the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (1)
1. a kind of preparation method of aluminium conductor automobile electric wire,
The body of aluminium conductor automobile electric wire is made of aluminum, and the section of the body is formed as Filled Rectangle, the section of the body
Length is 10-30mm, and the cross-sectional width of the body is 0.8-5.1mm；
Insulating barrier, the insulating barrier are coated on the outer surface of the body, and the section of the insulating barrier is formed as hollow rectangle,
The cross-sectional length of the insulating barrier is 11.5-34mm, and the cross-sectional width of the insulating barrier is 2.3-9.1mm；
The aluminium conductor automobile electric wire is in 20 DEG C of largest conductor resistance between 0.195-3.97m Ω/m；
Four of the section of the body angular to become rounding corner structure, and four of the section of the insulating barrier angular to become rounding
Corner structure；
The sectional area of the body is in 7.24-159mm2Between；
Characterized in that, comprising the following steps：
S1, the aluminium bar that surface cleaning is provided, and aligned, make flexibility be less than 2mm/m；
S2, the aluminium bar after aligning is cleaned；
S3, the aluminium bar after cleaning is carried out continuously extruded, obtain the solid body that section is formed as rectangle；
S4, by solid body carry out it is insulating exruded with the periphery of solid body formed insulating barrier, obtain the aluminium conductor automobile
Electric wire；
Step S2 includes：
S21, the aluminium bar after aligning is scrubbed to remove the chip and pollutant of blank surface；
S22, be 4%-6% with concentration, the cleanout fluid that pH value is 7-9 at 55 DEG C -65 DEG C cleaned to remove aluminum to aluminium bar
The greasy dirt and oxidation foul on bar surface, scavenging period are more than 5s；
S23, aluminium bar is cleaned with distilled water；
Step S3 includes：
S31, the aluminium bar is carried out continuously extruded, obtain the solid body that section is formed as rectangle；
S32, by the solid body water cooled groove water-cooled to 35 DEG C -45 DEG C, deliver to coiling machine into tension force lead frame；
S33, by the solid body through meter-measuring device and take-up, store up on bobbin；
In step S3, the aluminium bar is extruded using continuous extruder, extrusion compression ratio is 1:105, extrusion temperature
Spend for 400 DEG C -600 DEG C；
Step S4 includes：
S41, by the solid body unwrapping wire；
S42, the solid body is preheated to into 90 DEG C -110 DEG C；
S43, carry out insulating exruded on the solid body outer surface, insulating barrier is formed in the periphery of solid body, obtain
The aluminium conductor automobile electric wire；
In step S4, insulating exruded, insulating exruded compression is carried out using 90 plastic extruders of Φ to the solid body
Than for 1:1.25, insulating exruded temperature is 160 DEG C -200 DEG C.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128888A (en) * | 2005-02-03 | 2008-02-20 | 自动电缆管理有限责任公司 | Belt type electrical wire for motor vehicles |
| CN101359523A (en) * | 2007-12-29 | 2009-02-04 | 天津市经纬电材有限公司 | Method for making enameled aluminium flat wire |
| CN104112508A (en) * | 2014-07-12 | 2014-10-22 | 惠州市以泰克电线工业有限公司 | Novel cable used in electromobile and preparation method of cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4927366B2 (en) * | 2005-02-08 | 2012-05-09 | 古河電気工業株式会社 | Aluminum conductive wire |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128888A (en) * | 2005-02-03 | 2008-02-20 | 自动电缆管理有限责任公司 | Belt type electrical wire for motor vehicles |
| CN101359523A (en) * | 2007-12-29 | 2009-02-04 | 天津市经纬电材有限公司 | Method for making enameled aluminium flat wire |
| CN104112508A (en) * | 2014-07-12 | 2014-10-22 | 惠州市以泰克电线工业有限公司 | Novel cable used in electromobile and preparation method of cable |
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Effective date of registration: 20230322 Address after: 529000 building 6, No. 10, Baoxing Road, Tangxia Town, Pengjiang district, Jiangmen City, Guangdong Province Patentee after: JIANGMEN FUERXIN AUTO WIRE Co.,Ltd. Address before: 101407 Beijing District of Huairou City Economic Development Zone Yanqi Yanqi Street No. 39 Patentee before: BEIJING FORCE AUTOMOTIVE WIRE Co.,Ltd. |
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