CN201304423Y - Soft aluminum conductor preparing device - Google Patents
Soft aluminum conductor preparing device Download PDFInfo
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- CN201304423Y CN201304423Y CNU2008202152437U CN200820215243U CN201304423Y CN 201304423 Y CN201304423 Y CN 201304423Y CN U2008202152437 U CNU2008202152437 U CN U2008202152437U CN 200820215243 U CN200820215243 U CN 200820215243U CN 201304423 Y CN201304423 Y CN 201304423Y
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- aluminum conductor
- soft aluminum
- aluminium
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Abstract
The utility model provides an improvement to a soft aluminum conductor preparing device for electric work, which is characterized in that a forming device also includes a pivoting friction rotating wheel and a cover surrounding part of the periphery of the rotating wheel and forming a closed friction soft melting space, and an extrusion molding die is arranged in a tail end zone of the cover. Compared with the prior art, the utility model has a simple structure, realizes automatic and continuous feeding in the meanwhile, eliminates an additional continuous feeding device, has low power consumption and saves energy, and can obtain an aluminum conductor with bright surface, small section and high dimensional accuracy that can not be acquired by the cold extrusion method, the obtained soft aluminum conductor has stable quality, the conductivity can be equal or greater than 63 percent stably, the continuous extrusion with unlimited length can be realized, the die is not easy to wear, the service life is long, a plurality of pieces can be extruded out at a time, the production efficiency is high, and the soft aluminum and the required conductor can be obtained simultaneously by one step.
Description
Technical field
Utility model is to the improvement of electrician with the soft aluminum conductor preparation facilities, relates in particular to a kind of production efficiency height, the accurate and mechanical soft aluminum conductor preparation facilities consistent with electric property of molded lines size.
Background technology
People are in order to improve the electrical conductivity of transmission of electricity aluminium conductor, to reduce the loss in the electric energy transmitting process, usually adopt by cold deformation duralumin conductor with heating anneal mode (for example 350 ℃), change the grain structure state, make soft aluminum conductor, make the aluminium conductor conductance bring up to about 63%IACS by 61%IACS; In addition, for improving the transmission line of electricity wind loading rating, and improve conductor filled coefficient, reduce wire diameter, cross-sectional area of conductor adopts the molded lines structure, can reduce wire diameter about 25% under the identical conduction cross section.
The preparation of prior art soft aluminum conductor: basic skills is: the aluminium bar is through cold deformation technology, for example cold drawn-cold rolling-finishing obtains required conductor, obtain soft aluminum conductor through heating (for example 350 ℃) annealing again, the disclosed low arc drop soft aluminum conductor of Chinese patent CN101174490 for example, draw out aluminium wire by aluminium ingot, obtain through The high temperature anneal again.This kind elder generation by cold drawn, pull out (rolling) technology and make required conductor, prepare soft aluminum conductor through heating anneal again, not only complex technical process needs through the cold modification technology of multi-pass, production efficiency is relatively low, and the heating anneal energy consumption is higher, and is not energy-conservation; Heating anneal is the whole dish annealing of drum behind the system line, and it is inhomogeneous the annealing of disk center's conductor and external conductor usually can to occur, easily causes grain structure inhomogeneous thick, thereby causes the inhomogeneous of conductor intensity, conductance etc., produces soft aluminum conductor quality instability.Secondly, aluminium conductor is drawing, is pulling out (rolling) cold working process, and lubricating oil is left on the surface, and annealing high temperature easily causes surperficial grease carbonization, and the annealing conductive surface is black, influences outward appearance.Besides, aluminium conductor unavoidably can occur damaging via the multiple tracks technical process, also can influence to produce the aluminum steel quality.Particularly, be difficult to obtain small bore (for example 10mm2 is following) high accuracy size aluminium conductor by drawing, pull out (rolling).
The disclosed aluminium matter of Chinese patent CN1866413 electromagnetic wire manufacture method, technical process is: processing aluminum materials, extrusion modling, annealing process processing, alignment processing etc.Its molded lines adopts extrusion modling, extruding is with aluminium section bar extruder cold extrusion modification, this kind preparation method is substantially with above-mentioned prior art, cold extrusion only is the metallic object of nature, change cross sectional shape and size by mold cavity continuously, though continuously extruded have certain temperature rise with the mould friction, but reality is cooled off by mould being applied lubricant etc. in process of production, the restriction temperature rise, objectively cold extrusion also can not produce and be higher than the aluminium temperature of crystallization again, and the grain structure state does not obtain changing, so cold extrusion only has metamorphosis, still need to handle by heating anneal for obtaining soft aluminum conductor, the defective of heating anneal is not still overcome.
The production method of the disclosed electronic isolation copper of Chinese patent CN1744236, aluminium circle, flat electromagnetic wire, with electrician's copper, aluminium bar through surface clean, send into continuous extruder wire production equipment, once finish wire rod moulding, electrostatic spraying, curing, take-up, promptly make electronic isolation copper, aluminium circle, flat electromagnetic wire.Continuous extruder wire production equipment equally only is the cold extrusion that changes cross sectional shape and size by mold cavity, can not obtain soft aluminum conductor simultaneously.
Particularly, above-mentioned by drawing, pull out (rolling) cold deformation technology and prepare aluminium conductor, the one, every time deflection has limit value, can not obtain required conductor by the big crimp of aluminium bar of diameter, the 2nd, because aluminium is to pass through die deformation under nature, only be to change cross-sectional sizes and/or shape separately, the aluminium grain structural state is changed obtain soft aluminium, and cold-pressing deformation, can not form continuous continued access between conductor, because the aluminium pole length is limited, so the gained aluminium conductor is discontinuous finite length, can not obtain big length aluminium conductor, also be unfavorable for the lead preparation.Therefore still having is worth improved place.
The utility model content
The utility model purpose is to overcome the deficiency of above-mentioned prior art, provides a kind of simple in structure, and the preparation energy consumption is low, quality and dimensional uniformity are good, the production efficiency height can obtain big length, and a step is finished the soft aluminum conductor preparation facilities of soft aluminium of modification and conductor preparation simultaneously.
The utility model purpose realizes, the main improvement is the aluminium bar is entered continuously and to be full of in the space of a bigger hood-shaped one-tenth that is surrounded by runner and part, by runner it is continued friction and make its intensification, generation is enough to make the aluminium grain structural state to change, at least reach the temperature that heating anneal obtains soft aluminium, under the extruding of continuous feed, make to have changed grain structure and be the molten soft state aluminium of easily moulding at least simultaneously, be continuously extruded by die cavity, obtain the soft aluminum conductor of required continuous length.Must make required specification aluminium conductor through multi-pass deformation earlier thereby overcome prior art, by heating annealing more than aluminium recrystallization temperature (grain structure change) at least, two step method prepares the deficiency of soft aluminum conductor again, the realization utility model.Specifically, utility model soft aluminum conductor preparation facilities, include the extrusion molding mould of design section die cavity, it is characterized in that shaped device also comprises a pivoting friction runner, reach and surround the part rotor periphery, constitute and seal the cover that soft space is melted in friction, said extrusion molding mould is arranged on the cover end region.
Utility model is said
Runner surrounds the space that forms between part rotor periphery cover and runner outward, mainly be to make continuous feed aluminium in this space, continued friction by runner, and rub mutually, its volume can make fricative heat gather at least, reach and to obtain soft aluminium grain tissue temperature at least, charging duralumin is produced under the hot effect in friction be transformed into soft aluminium, and provide and extrude the appearance material space, this space exists to also help melts soft aluminium generation rubbing of similar crowded dough mutually, extrude the uniformity of conductor tissue and performance with raising, this is different from one of feature of cold extruding and forming device for one of utility model.The space that forms, size can be according to charging aluminium bar thicknesses, extrude test such as cross section, frictional force, charging, extruded velocity determines, minimum space obtains soft aluminium with the aluminium grain change in organization that can guarantee to heat up; And big molten soft space also helps aluminium and rubs friction mutually, helps obtaining the soft aluminium of grain structure uniformity, guarantees to extrude the uniformity and the stability of conductor quality.Therefore can be to be the bigger the better on this Space Theory, but the space can make equipment volume increase too greatly again, the real space size is determined, better be make aluminium by temperature arrising caused by friction to the semi-molten state, for example 450-550 ℃, semi-molten state aluminium, resistance of deformation is less, help reducing the consumption of soft aluminum conductor extrusioning power, and can obtain the accurate soft aluminum conductor of size, also help the uniformity of gained conductor machinery, electric property.The space is a kind of better be from feed end to discharge end by little increase, the increase gradually in the molten soft space of friction more helps entering aluminium bar total cross-section by friction modified, avoids " sandwich " to produce, thereby obtains the soft aluminium of grain structure uniformity.Therefore runner outsourcing shroud is preferably arcuate structure, for guaranteeing to extrude the even continuously of conductor, more preferably covering terminal extrusion die district has one outwards to protrude big space, for example the arc cover is boot-shaped, more semi-molten aluminium can be stored in the protrusion space that enlarges, more help extruding the even of the every performance of conductor, and obtain the continuous length aluminium conductor, also help the setting of many conductor extrusion dies simultaneously.
Friction heats up aluminium and obtains molten soft or semi-molten state, be meant that aluminium is subjected to thermal softening Cheng Yi to mould state (the easy plasticity that similar wet mud or thermoplastic plastics are arranged), wherein the semi-molten state is the less state of a kind of softening transform drag between solid-state and fusion fluidised form, like this can be under less external force effect, a kind of molten soft state that becomes arbitrary shape to extrude, but be not complete melt fluidised form, the melt fluidised form is unfavorable for extrusion molding fully.Extrusion molding of the present invention, can be in the molten soft state that obtains soft aluminium temperature to the semi-molten state, but be preferably state to the latter, not only extrude conveniently, and gained soft aluminum conductor uniform quality is good, and can realizes that the continued access of aluminium material is extruded and be continuously big length.
By the continuously extruded aluminium bar of bringing into of runner friction, a kind of better is between the front end of cover and runner the charging aperture that is not more than (≤) charging aluminium bar cross section to be arranged for convenient; In addition, runner side face and/or top cover import inner face also can be processed with groove, to increase the frictional contact surface to the aluminium bar, helps forming high squeeze pressure, also more conveniently makes the continuous feed of aluminium bar by the friction runner.There is unsteady pinch roller a kind of front end, runner top of more preferably covering, to the compressing of charging aluminium bar, can increase the retaining to charging aluminium by pinch roller, increases the continuous feed extruding force, can better ensure entering continuously of aluminium bar.
Cover end region (molten soft space end region) extrusion die, can roughly there be three kinds of modes to be provided with, a kind ofly extrude conductor and continuous feed direction approximate vertical is extruded for making, a kind ofly extrude conductor and feedstock direction almost parallel and form level and extrude for making, another is selected for use to the visual field for falling between.The present invention preferentially adopts into level and extrudes, and this mode helps the layout of system equipment.Extrude the conductor mould cavity, the cross-sectional area of conductor shape is determined as requested, for example can be to extrude common round conductor, also can be to extrude various molded lines conductors, can also be the hollow conductor of aforementioned two classes.Extrusion die can be designed to extrude a conductor, also can be designed to extrude side by side many conductors, and many conductors can be that a plurality of moulds are arranged side by side side by side, also can be design a plurality of moulding nibs arranged side by side on the mould.The present invention is according to extruding cross-sectional area of conductor, and for example 7-35mm2 soft aluminum conductor better adopts and extrudes 2-5 conductors simultaneously side by side.
By the continuous feed of aluminium bar, the one, make aluminium can be full of the molten soft space of sealing friction, can obtain to crystallize to half melting state again by lasting friction it with interior temperature, make the aluminium grain structural state become soft aluminium grain tissue; The 2nd, provide extrusion pressure for being extruded continuously simultaneously by the molten soft aluminium of friction, continuous feed simultaneously also helps molten soft aluminium self and rubs mutually, and it is even to help grain structure.Continuous feed is sent into mode and is not particularly limited, can have multiple: for example pressure advances, clamping is sent into etc., wherein a kind of being preferably adopts clamping mode to rely on frictional force to continue to send into, like this can with aluminium is continued the shared same device of temperature arrising caused by friction, simplify or omit and establish pay-off in addition.Charging aluminium bar sectional dimension is preferably 70-315mm
2(being equivalent to Φ 9.5-Φ 20), or similar prismatic other geometries, if aluminium bar cross section is too small, lack necessary intensity, can increase and realize the continuous feed difficulty, if the cross section is excessive, then need strengthen molten soft space of friction and frictional force, otherwise might cause aluminium bar center to be difficult to reach change grain structure state, cause " sandwich ", influence quality uniformity by temperature arrising caused by friction.The technical staff can understand, as long as rubbing device allows, the cross section is to change, only need satisfy the unit interval charging and extrude volume and equate (being full of molten soft space) for satisfying, its charging with extrude the cross section can be identical, also can be inequality, be that charging aluminium bar cross section can be greater than extruding total cross section, also can be less than extruding total cross section, different feeds/extrude section ratio just influences extruded velocity, can adjust flexibly between the two, above-mentioned only is from the economy angle, and an appropriate interval of proposition is not a limit end value.
The utility model soft aluminum conductor prepares shaped device, make the change of aluminium grain structural state obtain soft aluminium for producing high temperature by the runner friction earlier, under molten at least soft state, extrude again and obtain soft aluminum conductor by mould, a device can obtain soft aluminium and moulding conductor (aluminium softens modification and extrudes conductor and once finish) simultaneously, be that the utility model device prepares soft aluminum conductor and prior art makes the aluminium wire conductor by the multi-pass cold deformation earlier, obtaining the maximum difference place of soft aluminum conductor two step method and device again by heating anneal, also is the maximum contribution to prior art for preparing soft aluminum conductor device.Because aluminium is continued friction and is rubbed mutually in a space, the change aluminium grain structural state that heats up obtains soft aluminium, and extrude at the molten soft particularly state semi-molten state of aluminium, have than prior art: simple in structure, and can realize automatic continuous feed simultaneously, omitted and established the friction feeding device in addition, simply many far beyond the cold-pressing deformation device; Extrude at least and after aluminium is molten soft, carry out, and to be transformed into soft aluminothermy be produce to be obtained by friction, and power consumption is few energy-conservation, can obtain surface-brightening, small bore, high accuracy size aluminium conductor that cold extrusion method is difficult to obtain, the cross-sectional area of conductor high conformity, discreteness is little; Aluminium is continued friction and mutual friction mutually, and grain structure state uniformity consistency is good, steady quality, and electrical conductivity can be stablized 〉=63% (the softening quality instability of system line after annealing); And can realize that continuous indefinite length extrudes, can also realize heavy in section aluminium bar directly once distortion extrude, promptly one-shot forming section deformation amount is unrestricted, operation is economized, do not need multi-pass deformation, one step process can obtain soft aluminium and required conductor simultaneously, and mould is not easy to wear yet, long service life, die cost is low, simultaneously can also realize that some are extruded simultaneously, production efficiency height, gained conductor steady quality.
Below in conjunction with some specific embodiments; utility model is further understood in exemplary illustration and help; but the embodiment detail only is for utility model is described; do not represent utility model design whole technical schemes down; therefore should not be construed as the technical scheme qualification total to utility model, some do not depart from the unsubstantiality of utility model design and change In the view of the technical staff; for example change or replace, all truely use novel protected scope so that technical characterictic with same or similar technique effect is simple.
Description of drawings
Fig. 1 utility model soft aluminum conductor prepares a kind of shaped device structure diagram.
Fig. 2-Fig. 7 is respectively and extrudes difformity soft aluminum conductor schematic cross-section.
The specific embodiment
Embodiment 1: referring to Fig. 1, utility model soft aluminum conductor shaped device, comprise the friction runner 3 that rotation is rotated, surrounding about runner 1/4 arc length, end has and enlarges the arc cover 2 that the district is boot-shaped, friction runner and arc cover feed end opening are slightly less than charging aluminium bar cross section, boot-shaped arc cover surrounds the runner space, enlarge gradually at the bottom of boots from feed inlet end, boot-shaped arc cover end region boots bottom side opening, be provided with conductor extrusion molding mould 4, mould discharging mouth and aluminium bar charging almost parallel, design has 4 moulding nibs arranged side by side on the mould, can extrude 4 conductors 5 simultaneously.The fluted (not shown) of friction runner side face, there is unsteady pinch roller 6 arc cover front portion, friction runner 3 tops, the also fluted (not shown) of pinch roller side face.
The soft aluminum conductor preparation, the aluminium bar 1 that cleaned is passed floating type pinch roller 6, drive continuous molten soft space feeding by 3 frictions of friction runner to runner and the encirclement of boot-shaped arc cover, enter molten soft space aluminium under the continuous friction of friction runner rotation, and in the space constantly by the runner friction with rub mutually, temperature is increased to and is lower than aluminium melting point temperature (about 450-550 ℃), makes aluminium be the semi-molten state, after mould 4 is extruded continuously, obtain soft aluminum conductor 5.
Embodiment 2: referring to Fig. 2-7, as described above, change and extrude the outlet mould, can extrude various as shown in the figure molded lines conductors, wherein figure is a hollow conductor.
By changing runner speed and extrusion ratio (turnover aluminium area ratio), can realize control to the temperature and pressure of aluminium in the molten soft cavity.
To those skilled in the art; under the enlightenment of utility model design and embodiment; some distortion that can directly derive or associate from this patent disclosure and general knowledge; or the substituting of known technology commonly used in the prior art; and the mutual various combination between feature; for example adopt other frictional heat mode; extruding conductor is one or some; the change in aluminium conductor cross section; charging aluminium bar cross section and outlet cross section different, or the like unsubstantiality change, can both realize and basic identical function of the foregoing description and effect; launch for example no longer one by one to describe in detail, all belong to this patent protection domain.
The said conductor of utility model comprises common round conductor, various molded lines conductors and the various hollow conductors of aforementioned two classes, and promptly the cross-sectional area of conductor shape is not limit.
Claims (10)
1, soft aluminum conductor preparation facilities, include the extrusion molding mould of design section die cavity, it is characterized in that shaped device also comprises a pivoting friction runner, and surround the cover in part rotor periphery, the molten soft space of formation sealing friction, said extrusion molding mould is arranged on the cover end region.
2, according to the described soft aluminum conductor preparation facilities of claim 1, it is characterized in that surrounding the space that forms between the cover of part rotor periphery and runner, from feed end to discharge end by little increase.
3,, it is characterized in that the terminal extrusion die of the cover district that surrounds the part rotor periphery has one to protrude large space according to the described soft aluminum conductor preparation facilities of claim 1.
4,, it is characterized in that surrounding that charging aperture is not more than charging aluminium bar cross section between the cover front end of part rotor periphery and runner according to claim 1,2 or 3 described soft aluminum conductor preparation facilities.
5, according to claim 1,2 or 3 described soft aluminum conductor preparation facilities, the cover that it is characterized in that surrounding the part rotor periphery is the arc cover.
6,, it is characterized in that the arc cover is boot-shaped according to the described soft aluminum conductor preparation facilities of claim 5.
7, put according to claim 1,2 or 3 described soft aluminum conductor preparation facilities, it is characterized in that runner side face and/or cover entrance point inner face are fluted.
8, according to claim 1,2 or 3 described soft aluminum conductor preparation facilities, it is characterized in that covering front end, runner top has unsteady pinch roller.
9,, it is characterized in that extrusion die has on side by side a plurality of or a mould a plurality of moulding nib arranged side by side is arranged according to claim 1,2 or 3 described soft aluminum conductor preparation facilities.
10,, it is characterized in that extrusion molding mould extrudes conductor outlet and become level to extrude with the feedstock direction almost parallel according to claim 1,2 or 3 described soft aluminum conductor preparation facilities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202152437U CN201304423Y (en) | 2008-11-25 | 2008-11-25 | Soft aluminum conductor preparing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202152437U CN201304423Y (en) | 2008-11-25 | 2008-11-25 | Soft aluminum conductor preparing device |
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| Publication Number | Publication Date |
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| CN201304423Y true CN201304423Y (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202152437U Expired - Fee Related CN201304423Y (en) | 2008-11-25 | 2008-11-25 | Soft aluminum conductor preparing device |
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| CN (1) | CN201304423Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159730A (en) * | 2017-06-20 | 2017-09-15 | 远东电缆有限公司 | A kind of aluminium profiles line, aluminium profiles row's continuous extruder |
| CN111644476A (en) * | 2020-05-22 | 2020-09-11 | 湖南乾龙新材料有限公司 | Production process method of large coil weight Al-Mg-Si series alloy extruded material |
-
2008
- 2008-11-25 CN CNU2008202152437U patent/CN201304423Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159730A (en) * | 2017-06-20 | 2017-09-15 | 远东电缆有限公司 | A kind of aluminium profiles line, aluminium profiles row's continuous extruder |
| CN111644476A (en) * | 2020-05-22 | 2020-09-11 | 湖南乾龙新材料有限公司 | Production process method of large coil weight Al-Mg-Si series alloy extruded material |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20171125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |