CN203397787U - Continuous aluminum extruder - Google Patents
Continuous aluminum extruder Download PDFInfo
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- CN203397787U CN203397787U CN201320392762.1U CN201320392762U CN203397787U CN 203397787 U CN203397787 U CN 203397787U CN 201320392762 U CN201320392762 U CN 201320392762U CN 203397787 U CN203397787 U CN 203397787U
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Abstract
The utility model discloses a continuous aluminum extruder. An aluminum melting furnace is connected with a holding furnace; the holding furnace is connected with an online degassing and filtration device; and the online degassing and filtration device is connected with the aluminum extruder. The aluminum extruder comprises a screw extrusion device and a mould seat; the screw extrusion device and the mould seat are connected; the screw extrusion device includes a screw cylinder and a screw rod; the screw cylinder and the screw rod are in thread connection; the screw cylinder is provided with an inlet tube for injection of aluminum liquid into the screw cylinder; the online degassing and filtration device and the screw extrusion device are connected through the inlet tube; and the screw rod and a drive device are connected. In the utility model, the extrusion device realizes the thread extrusion with cooperation of the screw rod and the screw cylinder; the aluminum ingot is melted and refined to obtain the aluminum liquid which directly flows into the screw cylinder, and the aluminum liquid is cooled, solidified and maintains the soft state at the high temperature; the screw rod is rotated to realize the extrusion; the aluminum liquid flows to the ring mold to shape; and the continuous extrusion is realized.
Description
Technical field
The utility model relates to a kind of aluminum-extruding machine, relates in particular to aluminium ingot is squeezed into aluminum pipe or the coated continuous aluminum-extruding machine of producing of electrical cable aluminium sheath.
Background technology
The conductor of high-voltage and ultra-high cable is coated with insulating material and various protective layer, and the effect of protective layer is to protect cable insulation to prevent from making moist in the useful life of cable expection, and prevents that insulating barrier is damaged in transportation construction.Conventional sheath has lead sheath and aluminium sheath.Because lead resource lacks, simultaneously for alleviating cable weight, improve the mechanical performance of sheath, reduce costs, reduce the reasons such as pollution, cable adopts aluminium sheath protective layer in a large number both at home and abroad.
The aluminum pipe mode of production has at present:
A kind of is intermittence continuously extruded (being commonly called as aluminium press).Be by well formula casting machine, to cast long aluminium bar one by one after first aluminium ingot being melted, then cut into aluminium bar bar.Again aluminium bar bar is heated to 500 ℃ of left and right by heating furnace, the extrusion chamber of putting into extruder of a rule discontinuous then, plunger-type cylinder is clamp-oned mould by aluminium bar bar.There are the two actions of single cylinder one action and twin-tub, have vertical and horizontal.This fashion of extrusion equipment is huge, and manufacturing cost is high, and energy consumption is large, domestic not production, and import equipment is more than one hundred million.Due to the discontinuous reason of batch (-type) extruding, cause and extrude discontinuously, pressure and temperature are all unstable, finally produce wall unevenness even; Charging meeting intermittently produces seam, and seam crossing is easy to produce defect.
Two kinds is the longitudinal wraparound of aluminium strip.After the longitudinal wraparound of aluminium strip is on cable, then by argon arc welding, be welded.Its disadvantage is problems of welded quality, and particularly solder skip, rosin joint directly have influence on the performance and used life of cable.
Three kinds is extruder extruding.First will aluminium ingot by continuous casting and continuous rolling mill, roll into aluminium bar after fusing, then by extruder extrusion molding, the feature of this mode be by extruding, friction generates heat that aluminium bar is softened.So the efficiency of this mode of production is too low.
Separately having China Patent No. is 200920198925.6 to disclose the utility model of cable extruded-aluminium mold, comprise die sleeve and core rod, in described die sleeve, be provided with the first through hole, described core rod is socketed in the first through hole, described die sleeve and core rod bottom closely cooperate, described die sleeve bottom has into aluminium mouth, between described die sleeve and core rod top, leave the discharging opening that squeezes aluminium, in the middle of described core rod, along axis, have the second through hole that cable core passes through, described core rod bottom has two along core rod wall and leads aluminium groove, described half that lead aluminium slot length and be no more than core rod circumference, describedly enter aluminium mouth and be communicated with two imports of leading aluminium groove, described two outlets of leading aluminium groove all communicate with core rod middle part aluminium liquid tiling platform, described core rod top is provided with a gear liquid platform.The object of above-mentioned utility model is in order to make the pressure of molten condition aluminium arrival discharging opening substantially even, thereby realize metallic sheath pipe rounding, extrude uniformly, but can not make aluminium ingot produce continuously to aluminum pipe or electrical cable aluminium sheath coated prod, thereby cause squeezed discontinuous, pressure and temperature are unstable, finally produce wall unevenness.
Utility model content
For the existing aluminium coated prod mode of production become problem, it is a kind of from aluminium ingot to aluminum pipe or the continuous aluminum-extruding machine of electrical cable aluminium sheath coated prod quantity-produced that the utility model provides.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
An aluminum-extruding machine, is characterized in that: comprise molten aluminium stove, holding furnace, online degassing and filtration device, squeeze aluminium device;
Described molten aluminium stove is connected with holding furnace, and holding furnace is connected with online degassing and filtration device, and online degassing and filtration device is connected with crowded aluminium device;
Described crowded aluminium device comprises screw extrusion device and mold base, screw extrusion device is connected with mold base, described screw extrusion device comprises barrel and screw rod, described screw rod is connected with barrel, barrel is provided with to the inflow catheter that injects aluminium liquid in barrel, described online degassing and filtration device is connected with screw extrusion device by inflow catheter, and described screw rod is connected with drive unit.
Described online degassing and filtration device comprises the rotation degasification head that passes into inert gas (or nitrogen) to aluminium liquid bottom, and the filter of aluminum filtration liquid is arranged on the volume control device that aluminium liquid exports.
On described barrel, be also provided with cooling water pipe, heating tube and thermocouple.
Between described barrel and screw rod, be also provided with sealing shroud.
Described screw rod tapering, screw rod coordinates with barrel tapering.
Between described barrel and mold base, be provided with locating sealing ring.
In described mold base, comprise the branching block, mould inner sleeve, die coat, grading ring and the cooling spray pipe that set gradually.
Described branching block is positioned at the end of screw rod.
The crowded aluminium method of aluminum-extruding machine, is characterized in that comprising the steps: continuously
(1) aluminium ingot is dropped in molten aluminium stove and melted, by chute, flow into holding furnace and carry out degasification, slagging-off, insulation, standing;
(2) insulation, aluminium liquid after standing are flowed into online degassing and filtration device by chute, by rotation degasification head, to aluminium liquid bottom, pass into inert gas (or nitrogen), inert gas (or nitrogen) bubble disperseing is taken the hydrogen being melted in aluminium liquid out of liquid level, by ceramic filter plate, aluminium liquid is once filtered again.(the principle of online degasification: high concentration spreads to low concentration.Inert gas (or nitrogen) dissolves hardly in aluminium liquid, and when aluminium liquid is during at 660 ℃, hydrogen solubility reaches 0.67ml/100mg aluminium, so the hydrogen in aluminium can be diffused in the bubble of inert gas in a large number, goes, and then takes aluminium liquid out of, plays the object of degasification.）
(3) heating tube on screw extrusion device is preheated to by screw rod, barrel the temperature that each district sets.
(4) the aluminium liquid after above-mentioned (2) step filtration is flowed into extrusion device by the aluminium liquid feed tube sealing, and control flow by volume control device, aluminium liquid flows in the barrel of preheating, by the size of automatic control cooling water pipe current, aluminium liquid is by cooling area, ,Gu Tai district, solidification zone.The screw rod rotating, is pushed, is shunted by propelling movement, under the anti-drag effect of grading ring, to mould mouth, confluxes, and extruding pressing is shaped.
The utlity model has following advantage:
1, in the utility model compared with prior art, prior art is will aluminium ingot by well formula casting machine, to cast long aluminium bar one by one after fusing, then cuts into aluminium bar bar.Again aluminium bar bar is heated to 500 ℃ of left and right by heating furnace, the extrusion chamber of putting into extruder of a rule discontinuous then, plunger-type cylinder is clamp-oned mould by aluminium bar bar, batch (-type) extruding discontinuous; The utility model pressurizing unit is set to screw rod and coordinates screw extrusion with barrel, thus by aluminium ingot fusing, aluminium liquid after concise directly input cooling in barrel, solidify and keep soft condition at high temperature, rotating screw bolt, by extruding, be diverted to ring mould, be shaped, thereby realized continuously extruded, and used device cost is little, take up an area less, energy savings, saves manpower, efficiency is high, steady quality.
2, in the utility model, online degassing and filtration device comprises the rotation degasification head that passes into inert gas (or nitrogen) to aluminium liquid bottom, the filter of aluminum filtration liquid, be arranged on the volume control device of aluminium liquid outlet, the aluminium liquid of melting is wanted degasification, slagging-off and filtration before entering crowded aluminium device, and volume control device is realized and being dammed and flow control.
3, in the utility model, on barrel, be also provided with cooling water pipe, heating tube and thermocouple, its objective is before work screw rod barrel and mold base are heated up to prevent that aluminium liquid from solidifying in advance or temperature is too low, simultaneously in order to make aluminium liquid control and keep by process area temperature in barrel, make solid aluminum temperature keep certain high temperature, there is certain flexibility and mobility, to implement extruding pressing and keep mechanical performance simultaneously.
4, in the utility model, in mold base, comprise branching block, grading ring, mould inner sleeve, die coat and the air ring setting gradually, described branching block is positioned at the end of screw rod, the screw rod of rotation pushes to branching block shunting by aluminium, then be pushed to grading ring place and conflux, the anti-drag effect of grading ring makes the pressure of mold periphery, flow velocity consistent.
5, screw rod tapering in the utility model, screw rod coordinates with barrel tapering, to guarantee to push pressure.
6, in the utility model, between barrel and screw rod, be also provided with sealing shroud, fitted seal between barrel and screw rod, prevents aluminium hydrorrhea stream.
8, in the utility model, barrel inwall has gathering sill vertically, is conducive to solidify too flowing of aluminium.
9, the crowded aluminium method in the utility model, the crowded aluminium device that utilizes screw rod to coordinate with barrel, rotating screw bolt can be realized and squeeze continuously aluminium, the method from molten aluminium, refining, to crowded aluminium process implementation continual continuous production, realize temperature stabilization, pressure stability, velocity-stabilization, the aluminum pipe wall thickness of extruding is even.
Accompanying drawing explanation
Fig. 1 is the structural representation that squeezes continuously aluminium of the present utility model;
Fig. 2 is online degassing and filtration apparatus structure schematic diagram of the present utility model;
Fig. 3 is crowded aluminium apparatus structure schematic diagram of the present utility model;
Fig. 4 is mold base structural representation of the present invention;
Fig. 5 is barrel internal diversion groove schematic diagram of the present invention;
Fig. 6 be Fig. 5 A-A view.
The molten aluminium stove of mark 1 in figure, 2 chutes, 3 holding furnaces, 4 chutes, 5 online degassing and filtration devices, 6 aluminium liquid feed tubes, 7 squeeze aluminium device, 8 cooling systems, 9 control system, 10 actinobacillus devices, 11 cooling baths, 12 wrap-ups, 13 rotation degasification heads, 14 filters, 15 volume control devices, 16 barrels, 17 sealing shrouds, 18 inflow catheters, 19 screw rods, 20 cooling water pipes, 21 heating tubes, 22 thermocouples, 23 locating sealing rings, 24 mold bases, 25 clamp nuts, 26 branching blocks, 27 mould inner sleeves, 28 grading rings, 29 die coats, 30 positioning sleeves, 31 nut seats, 32 mould compressor arms, 33 air rings, 34 interior outer nuts.
Embodiment
Embodiment 1
As shown in Figure 1, aluminum-extruding machine, comprises molten aluminium stove 1, holding furnace 3, online degassing and filtration device 5, squeezes aluminium device 7 continuously;
Described molten aluminium stove 1 is connected by chute 2 with holding furnace 3, and holding furnace 3 is connected by chute 2 with online degassing and filtration device 5, and online degassing and filtration device 5 connects with crowded aluminium device 7; From molten aluminium, to the last aluminium that squeezes, be shaped, form a continuous crowded aluminium device.The aluminium sheath that the line that actinobacillus device 10 is emitted is extruded through crowded aluminium device 7 is coated on it, and after cooling bath 11 is cooling, by wrap-up 12 rollings.
For reaching the above-mentioned object that aluminium is shaped of squeezing continuously, described crowded aluminium device 7 comprises that screw extrusion device (as shown in Figure 3) and mold base 24(are as shown in Figure 4), screw extrusion device 7 is connected with mold base 24 by locating sealing ring 23, described screw extrusion device comprises barrel 16 and barrel 19, described screw rod 19 is connected with barrel 16, and barrel 16 is provided with to the inflow catheter 18 of the interior injection aluminium of barrel 16 liquid.Aluminium liquid feed tube 6 on described online degassing and filtration device 5 is connected with the inflow catheter 18 on screw extrusion device, described screw rod 19 is connected with drive unit, with drive screw 19 rotations, squeeze aluminium, described branching block 26 coordinates with mold base 24, by described clamp nut 25, by screw thread, compressed, described mould inner sleeve 27 is connected with branching block 26, grading ring 28 is connected with mold base 24, described die coat 29 is connected with grading ring after being connected with positioning sleeve 30 again, described nut seat 31 is threaded connection with mold base 24, and compress grading ring 28, described mould compressor arm 32 is threaded with nut seat 31, and compress positioning sleeve 30, described air ring 33 is connected with mould compressor arm 32.Squeeze on aluminium device 7 and be also provided with cooling system 8 and control system 9.
In order to make to pass into the aluminium liquid cooled and solidified in barrel and to keep certain high temperature, keep certain flexibility and mobility, be conducive to squeeze 7 extruding of aluminium device and release, in 24 li of shapings of mold base, on barrel 16, be also provided with cooling water pipe 20, heating tube 21 and thermocouple 22.The temperature that screw rod 19, barrel 16 and mold base 24 temperature is risen to setting before work with prevent aluminium liquid and solidify in advance or temperature too low, heating tube preheating is set.Simultaneously in order to make at work aluminium liquid reach the regional temperature requirement of technique initialization in barrel, and keep this temperature, cooling water pipe and thermocouple are set.Barrel 16 inwalls have gathering sill 35 vertically, and (as shown in Figure 5, Figure 6) its objective is when screw rod 19 rotates, prevent aluminium especially solid aluminum on barrel 16 inwalls, skid, flow velocity is extruded in impact, improves screw rod 19 to the propelling movement effect of mold base 24.
Squeeze aluminium device 7 in crowded aluminium process, for preventing that aluminium hydrorrhea from going out, according to temperature everywhere and the line expansion of respective material, the tolerance clearance of design elements, guarantees that aluminium liquid do not reveal.Between barrel 16 and screw rod 19, be also provided with sealing shroud 17.
Above-mentioned online degassing and filtration device 5 comprise to aluminium liquid bottom, pass into inert gas (or nitrogen) a rotation degasification 13(as shown in Figure 2), the filter 14(ceramic filter plate of aluminum filtration liquid), be arranged on the volume control device 15 of aluminium liquid outlet, the aluminium liquid of melting enter will slagging-off before squeezing aluminium device 7, degasification and filtration, volume control device 15 is realized and being dammed and flow control.
In described mold base 24, comprise the branching block 26, the mould inner sleeve 27 that set gradually, grading ring 28, die coat 29, positioning sleeve 30, nut seat 31, mould compressor arm 32, air ring 33, interior outer nut 34.Described branching block 26 is positioned at the end of screw rod 19, the screw rod 19 of rotation pushes to branching block 26 by aluminium, by shunting, make mold periphery be full of aluminium, under the anti-drag effect of grading ring, make the pressure of mold periphery, flow velocity consistent, thereby between die coat 29 and mould inner sleeve 27, form the uniform aluminum pipe of wall thickness, cooling water is sprayed by air ring 33, and aluminum pipe is cooled.
The crowded aluminium method of above-mentioned continuous aluminum-extruding machine, comprises the steps:
(1) aluminium ingot is dropped into the molten interior fusing of aluminium stove 1, refining, after degasification slagging-off by chute flow into holding furnace be incubated, standing; Molten aluminium stove 1 continues fusing, to realize continuously, produces.
(2) insulation, aluminium liquid after standing are flowed into online degassing and filtration device 5 by chute 2, by rotation degasification 13, to aluminium liquid bottom, pass into inert gas (or nitrogen), inert gas (or nitrogen) bubble disperseing is taken the hydrogen being melted in aluminium liquid out of liquid level, by 14 pairs of aluminium liquid of ceramic filter plate, once filters again;
(3) aluminium liquid clean after above-mentioned filtration is squeezed to aluminium device by aluminium liquid feed tube 6 inflows of sealing, and fill 15 control flows by flow control, the soft condition of aluminium liquid when the interior process of barrel 16 is lowered the temperature, solidifies, lowered the temperature and keep high temperature, rotating screw bolt 19, by extruding, be diverted to mould and conflux again, be shaped.
Squeeze barrel three sections of preheatings in 16 minutes, thermometric control, cooling ，Ji liquid zone, solidification zone, the solid-state district of aluminium device 7.Mould part also has thermometric to control.By temperature detection, automatically control each district's cooling water water yield, guarantee pre-set each point temperature.
The temperature of each measurement point is controlled the size of cooling water by PLC intelligent system, realize temperature stabilization, pressure stability, velocity-stabilization.
Claims (7)
1. a continuous aluminum-extruding machine, is characterized in that: comprise molten aluminium stove, holding furnace, online degassing and filtration device, squeeze aluminium device;
Described molten aluminium stove is connected with holding furnace, and holding furnace is connected with online degassing and filtration device, and online degassing and filtration device is connected with crowded aluminium device;
Described crowded aluminium device comprises screw extrusion device and mold base, screw extrusion device is connected with mold base, described screw extrusion device comprises barrel and screw rod, described screw rod is connected with barrel, barrel is provided with to the inflow catheter that injects aluminium liquid in barrel, described online degassing and filtration device is connected with screw extrusion device by inflow catheter, and described screw rod is connected with drive unit.
2. a kind of continuous aluminum-extruding machine according to claim 1, is characterized in that: described online degassing and filtration device comprises the rotation degasification head that passes into inert gas to aluminium liquid bottom, and the filter of aluminum filtration liquid is arranged on the volume control device that aluminium liquid exports.
3. a kind of continuous aluminum-extruding machine according to claim 1, is characterized in that: on described barrel, be also provided with cooling water pipe, heating tube and thermocouple.
4. a kind of continuous aluminum-extruding machine according to claim 1, is characterized in that: between described barrel and screw rod, be also provided with sealing shroud.
5. a kind of continuous aluminum-extruding machine according to claim 1, is characterized in that: described screw rod tapering, screw rod coordinates with barrel tapering.
6. a kind of continuous aluminum-extruding machine according to claim 1, is characterized in that: described barrel inwall has gathering sill vertically.
7. a kind of continuous aluminum-extruding machine according to claim 1, it is characterized in that: in described mold base, comprise the branching block, die coat, mould inner sleeve, positioning sleeve, mould compressor arm, nut seat, grading ring and the air ring that set gradually, described branching block is positioned at the end of screw rod, branching block is connected with mould inner sleeve, and grading ring is connected with mold base; Die coat is connected with grading ring after being connected with positioning sleeve again; Mould compressor arm is threaded with nut seat, and compresses positioning sleeve, and air ring is connected with mould compressor arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320392762.1U CN203397787U (en) | 2013-07-03 | 2013-07-03 | Continuous aluminum extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320392762.1U CN203397787U (en) | 2013-07-03 | 2013-07-03 | Continuous aluminum extruder |
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| Publication Number | Publication Date |
|---|---|
| CN203397787U true CN203397787U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320392762.1U Withdrawn - After Issue CN203397787U (en) | 2013-07-03 | 2013-07-03 | Continuous aluminum extruder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345986A (en) * | 2013-07-03 | 2013-10-09 | 德阳博创电工设备有限公司 | Continuous aluminum squeezing machine and aluminum squeezing method |
| CN104826884A (en) * | 2015-04-23 | 2015-08-12 | 安徽江南鸣放电子科技有限公司 | Nickel plated copper wire production device |
| CN109243709A (en) * | 2018-09-11 | 2019-01-18 | 江苏亨通高压海缆有限公司 | Degassing assembly line for cable |
-
2013
- 2013-07-03 CN CN201320392762.1U patent/CN203397787U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345986A (en) * | 2013-07-03 | 2013-10-09 | 德阳博创电工设备有限公司 | Continuous aluminum squeezing machine and aluminum squeezing method |
| CN103345986B (en) * | 2013-07-03 | 2016-02-03 | 德阳博创电工设备有限公司 | Continuous aluminum-extruding machine and crowded aluminium method thereof |
| CN104826884A (en) * | 2015-04-23 | 2015-08-12 | 安徽江南鸣放电子科技有限公司 | Nickel plated copper wire production device |
| CN104826884B (en) * | 2015-04-23 | 2018-04-27 | 安徽江南鸣放电子科技有限公司 | A kind of nickel plated copper wire process units |
| CN109243709A (en) * | 2018-09-11 | 2019-01-18 | 江苏亨通高压海缆有限公司 | Degassing assembly line for cable |
| WO2020052201A1 (en) * | 2018-09-11 | 2020-03-19 | 江苏亨通高压海缆有限公司 | Degassing pipeline for cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140115 Effective date of abandoning: 20160203 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |