CN113399634A - Aluminum alloy circular tube casting crystallization equipment and method thereof - Google Patents
Aluminum alloy circular tube casting crystallization equipment and method thereof Download PDFInfo
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- CN113399634A CN113399634A CN202110566706.4A CN202110566706A CN113399634A CN 113399634 A CN113399634 A CN 113399634A CN 202110566706 A CN202110566706 A CN 202110566706A CN 113399634 A CN113399634 A CN 113399634A
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- 238000005266 casting Methods 0.000 title claims abstract description 43
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 42
- 238000002425 crystallisation Methods 0.000 title claims abstract description 22
- 230000008025 crystallization Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 116
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 115
- 239000007788 liquid Substances 0.000 claims abstract description 98
- 238000003860 storage Methods 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 230000017525 heat dissipation Effects 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 15
- 239000000498 cooling water Substances 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000007787 solid Substances 0.000 abstract description 5
- 238000009751 slip forming Methods 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 36
- 238000003723 Smelting Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/003—Aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/145—Plants for continuous casting for upward casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides aluminum alloy round pipe casting crystallization equipment and a method thereof, wherein the aluminum alloy round pipe casting crystallization equipment comprises a storage device, a crystallizer and a traction device which are sequentially arranged from bottom to top; the storage device comprises an aluminum liquid box and a core; one end of the core is arranged in the aluminum liquid box, and the other end of the core extends out of the aluminum liquid box and is positioned in the crystallizer; a molding space is formed in the crystallizer; the traction device comprises a guide head; the lower end of the guide head is connected with a connector; the leader is disposed above the core. Through the matching of the cores with different sizes and the crystallizers, pipes with different sizes and wall thicknesses can be produced; the aluminum liquid in the aluminum liquid box continuously overflows upwards, and when the aluminum liquid rises to the crystallizer, the aluminum liquid is cooled to become solid in the forming space, and is continuously led out upwards under the driving of the leading head, so that the purpose of pipe production is achieved, the aluminum liquid is continuously formed upwards through the pressure difference relationship of the aluminum liquid, and a plurality of production processes of aluminum bars can be omitted.
Description
Technical Field
The invention relates to the technical field of aluminum alloy circular tube casting, in particular to aluminum alloy circular tube casting crystallization equipment and a method thereof.
Background
The production process of the traditional aluminum alloy round pipe is roughly as follows: at a certain temperature, the solid aluminum alloy bar is used as a raw material and is filled into an extruding cylinder of an extruder, pressure is applied to the aluminum material through an extruding rod, the aluminum material is extruded from a round tube die with a given shape and size, and the aluminum alloy bar is subjected to plastic deformation to obtain a required product. The production method is mature, but the method still has defects in the aspects of material loss and process steps, such as: in order to prevent the impurities on the surface of the cast rod or the rod tail from extruding into the section bar to cause tissue defects, the excess pressure is required to be cut off after each aluminum cast rod raw material is operated, and the material serving as the excess pressure part is used as scrap aluminum and needs to be smelted again, so that the energy consumption is caused and the utilization rate of the raw material is reduced.
At present, in the casting production of aluminum alloy round tubes, a crystallizer is one of key devices in a thin-wall aluminum and aluminum alloy tube blank continuous casting process, but the existing crystallizer has low metal utilization rate and more working procedures and does not meet the actual production requirements.
Disclosure of Invention
Based on the above, in order to solve the problems of low metal utilization rate and multiple working procedures of the existing crystallizer, the invention provides aluminum alloy circular tube casting crystallization equipment and a method thereof, and the specific technical scheme is as follows:
an aluminum alloy round pipe casting crystallization device comprises a storage device, a crystallizer and a traction device which are sequentially arranged from bottom to top;
the storage device comprises an aluminum liquid box and a core;
one end of the core is arranged in the aluminum liquid box, and the other end of the core extends out of the aluminum liquid box and is positioned in the crystallizer; a molding space is formed in the crystallizer;
the traction device comprises a guide head; the lower end of the guide head is connected with a connector; the leader is disposed above the core.
Above-mentioned technical scheme provides an aluminum alloy pipe casting crystallization equipment, compares with prior art, its beneficial effect includes: through setting up the below of smelting the groove with aluminum alloy pipe casting crystallization equipment, the good aluminium liquid of smelting flows into aluminium liquid box department through the relation of self gravity, through the combination of core and crystallizer, the size specification of tubular product has been decided, through the combination of crystallizer and draw gear, under the poor situation of the gravitational potential energy of aluminium liquid, aluminium liquid in the aluminium liquid box constantly upwards overflows, and aluminium liquid is when rising to the crystallizer, the heat of aluminium liquid is taken away to the crystallizer, make aluminium liquid cool off in shaping space department and become the solid, and constantly upwards be drawn forth under the drive of leader, thereby reach the purpose of tubular product production, and compare aluminium extrusion, constantly upwards the shaping through the relation of the pressure difference of aluminium liquid self, can remove aluminium bar casting from, the surplus excision of pressure, mould production process, possess higher production efficiency and material utilization.
Further, the storage device also comprises an aluminum liquid guide pipe;
the aluminum liquid guide pipe is arranged on the side wall of the aluminum liquid box and is communicated with the aluminum liquid box.
Further, the crystallizer comprises a crystallizer shell and a heat-conducting ring;
the crystallizer shell is of a hollow cylindrical structure and is arranged at the upper end of the crystallizer shell, the heat-conducting ring is arranged on the inner side of the crystallizer shell, one side of the heat-conducting ring is attached to the inner side of the crystallizer shell, and a cooling inner cavity is formed between the crystallizer shell and the heat-conducting ring.
Further, the crystallizer shell is provided with a water inlet and a water outlet;
the water inlet is arranged on the side surface of the crystallizer shell and is communicated with the outside and the cooling inner cavity;
the water outlet is arranged at the upper end of the crystallizer shell and is communicated with the outside and the cooling inner cavity.
Further, the crystallizer also comprises a plurality of heat dissipation fins;
the plurality of heat dissipation fins are arranged in the cooling inner cavity and connected with one end of the heat conduction ring.
Furthermore, the heat dissipation fins are made of graphite;
and the heat dissipation fins are all of a sheet structure, and the minimum included angle between the heat dissipation fins and the tangent plane of the heat conduction ring is 30-60 degrees.
Further, the heat conduction ring is made of copper.
Further, the traction device further comprises a first driving assembly and a second driving assembly;
the first driving assembly and the second driving assembly are symmetrically arranged on two sides of the aluminum liquid box about a central axis of the aluminum liquid guide pipe.
Further, the first driving assembly comprises a first motor, a first transmission shaft and a first roller;
the aluminum alloy round pipe casting crystallization equipment further comprises a first support;
the first motor is arranged in the first support, the first transmission shaft is arranged at the upper end of the first support, two ends of the first transmission shaft are respectively and rotatably connected with the first support, the first motor is connected with any one end of the first transmission shaft, the first roller is sleeved at the first transmission shaft, and the first roller is arranged in the direction close to the leading head;
and/or the second driving assembly comprises a second bracket, a second motor, a second transmission shaft and a second roller;
the aluminum alloy round pipe casting crystallization equipment further comprises a second support;
the second motor is arranged in the second support, the second transmission shaft is arranged at the upper end of the second support, two ends of the second transmission shaft are respectively and rotatably connected with the second support, the second motor is connected with any one end of the second transmission shaft, the second roller is sleeved at the second transmission shaft, and the second roller is arranged in the direction close to the leading head;
the first support and the second support are symmetrically arranged on two sides of the aluminum liquid box about a central axis of the aluminum liquid guide pipe.
A casting and crystallizing method for an aluminum alloy round pipe comprises the following steps:
starting circulating cooling water;
introducing aluminum liquid;
solidifying the aluminum liquid into a pipe;
and outputting the formed pipe upwards.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic structural diagram of an apparatus for casting and crystallizing aluminum alloy round tubes according to an embodiment of the present invention;
FIG. 2 is a second schematic structural diagram of an apparatus for casting and crystallizing aluminum alloy round tubes according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a storage device and a crystallizer of an aluminum alloy round pipe casting crystallization device according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a storage device and a crystallizer of an aluminum alloy round pipe casting crystallization device according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a plug of an aluminum alloy round tube casting crystallization device according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of a method for casting and crystallizing an aluminum alloy round tube according to an embodiment of the present invention.
Description of reference numerals:
10-aluminum liquid box; 11-a core; 12-an aluminum liquid guide pipe; 13-a molding space; 20-a crystallizer; 21-a crystallizer housing; 22-a thermally conductive ring; 23-cooling the inner cavity; 24-a water inlet; 25-a water outlet; 26-radiating fins; 31-a first scaffold; 32-a first roller; 33-a second scaffold; 34-a second roller; 35-leading; 36-a connector; 40-pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1 to 6, an aluminum alloy round tube casting crystallization apparatus according to an embodiment of the present invention includes a storage device, a crystallizer 20, and a traction device, which are sequentially arranged from bottom to top;
the storage device comprises an aluminum liquid box 10 and a core 11; one end of the core 11 is arranged in the aluminum liquid box 10, and the other end of the core 11 extends out of the aluminum liquid box 10 and is positioned in the crystallizer 20; a molding space 13 is formed in the crystallizer 20; the traction device comprises a lead 35; the lower end of the guide head 35 is connected with a connecting head 36; the leader 35 is disposed above the wick 11.
Through setting up the aluminium alloy pipe casting crystallization equipment in the below of smelting the groove, the good aluminium liquid of smelting flows into aluminium liquid box 10 department through the relation of self gravity, through the combination of core 11 and crystallizer 20, the size specification of tubular product has been decided, through the combination of crystallizer 20 and draw gear, under the poor situation of the gravitational potential energy of aluminium liquid, aluminium liquid in the aluminium liquid box 10 constantly upwards overflows, and aluminium liquid is when rising to crystallizer 20, crystallizer 20 takes away the heat of aluminium liquid, make aluminium liquid cool off at shaping space 13 and become the solid, and constantly upwards be drawn out under the drive of leader 35, thereby reach the purpose of tubular product production, and compare aluminium extrusion, aluminium liquid casting can be removed from through the relation of self pressure difference and constantly upwards take shape, aluminium bar casting, the surplus excision, mould production process, possess higher production efficiency and material utilization.
Further, the connecting head 36 is provided with a thread structure. Through setting up the helicitic texture for aluminium liquid forms the parcel structure of looks adaptation when connector 36 department solidifies thereby makes fashioned tubular product receive the ascending resistance in the vertical direction and can be driven upward movement by leader 35. In an initial state, the lower end of the connector 36 is abutted to the upper end of the core, when the aluminum liquid in the aluminum liquid box 10 continuously overflows upwards to contact with the connector 36, the aluminum liquid covers the threads at the connector 36, meanwhile, the crystallizer 20 takes away the temperature of the aluminum liquid at the forming space 13 to solidify the aluminum liquid, the connector 36 is located in the forming space 13, so the aluminum liquid is solidified and covers the connector 36, and the connector 36 and the pipe obtained by solidifying the aluminum liquid can be lifted upwards by lifting the leading head 35 upwards.
Further, the size of the crystallizer 20 determines the size of the tubes formed.
Further, the other end of the core 11 extends out of the molten aluminum box 10 and is located in the forming space 13 of the mold 20, and the specification of the forming space 13 between the core 11 and the mold 20 determines the wall thickness specification of the formed pipe.
Further, the sizes of the crystallizer 20 and the core 11 may not be the only ones, and the user may design them according to the size requirements of the pipes to be produced, so as to obtain pipes with different sizes and wall thicknesses.
In one embodiment, the storage device further comprises an aluminum liquid guide pipe 12; the aluminum liquid guide pipe 12 is arranged on the side wall of the aluminum liquid box 10 and is communicated with the aluminum liquid box 10.
In one embodiment, the crystallizer 20 comprises a crystallizer housing 21 and a heat-conducting ring 22;
the crystallizer shell 21 is a hollow cylindrical structure and is arranged at the upper end of the crystallizer shell 21, the heat conducting ring 22 is arranged at the inner side of the crystallizer shell 21, one side of the heat conducting ring 22 is attached to the inner side of the crystallizer shell 21, and a cooling inner cavity 23 is formed between the crystallizer shell 21 and the heat conducting ring 22.
Further, the heat conducting ring 22 is cast by a copper hollow round ingot, and the other side of the heat conducting ring 22 is set to be a smooth surface, so that the problem that the surface of the produced pipe has defects is solved.
Further, the hollow round ingot is a common structure in the prior art, and is not described herein.
In one of the embodiments, the crystallizer housing 21 is provided with a water inlet 24 and a water outlet 25;
the water inlet 24 is arranged on the side surface of the crystallizer shell 21, and the water inlet 24 is communicated with the outside and the cooling inner cavity 23; the water outlet 25 is arranged at the upper end of the crystallizer shell 21, and the water outlet 25 is communicated with the outside and the cooling cavity 23.
Further, the water inlet 24 is disposed below the water outlet 25. The user inserts the cooling water to water inlet 24, and the cooling water is from up filling cooling inner chamber 23 down, flows out from delivery port 25 of the upper end of crystallizer shell 21 again, and the time of cooling water and the contact of heat conduction ring 22 compare in the water inlet 24 setting under the condition of the top of delivery port 25, and the time of cooling water and the contact of heat conduction ring 22 is more, so the heat of heat conduction ring 22 one side can be taken away more fully to the cooling water.
In one embodiment, the mold 20 further comprises a plurality of heat dissipating fins 26; the plurality of heat dissipation fins 26 are disposed in the cooling cavity 23 and connected to one end of the heat conduction ring 22.
Through setting up a plurality of heat dissipation wings 26, greatly increased the area of contact of heat conduction ring 22 with the cooling water, further enlarged cooling area for the heat of heat conduction ring 22 transmission can be taken away by the cooling water better, effectively keeps the temperature of heat conduction ring 22 to be less than the temperature of aluminium liquid solidus all the time, in order to guarantee that aluminium liquid solidifies in heat conduction ring 22 department.
In one embodiment, the heat dissipating fins 26 are fabricated from graphite; and the heat dissipation fins 26 are all of a sheet structure, and the minimum included angle between the heat dissipation fins 26 and the tangent plane of the heat conduction ring 22 is 30 degrees to 60 degrees.
Furthermore, the heat dissipation fins 26 conduct heat uniformly along two directions, the laminated structure can be well suitable for any surface, and the graphite plane has ultrahigh heat conduction performance within the range of 150W/mK-1500W/mK, so that heat can be taken away more quickly. And the minimum included angle between the heat dissipation fins 26 and the tangent plane of the heat conduction ring 22 is set to be 30 degrees to 60 degrees, so that the contact area between the cooling liquid and the heat dissipation fins 26 can be increased, meanwhile, the cooling water causes rotating water flow, the flow rate of the cooling water is increased, heat can be taken away more quickly, and the heat conduction efficiency of the heat conduction ring 22 with the heat dissipation fins 26 is improved by 40% compared with the heat conduction ring 22 without the heat dissipation fins 26.
In one embodiment, the heat conductive ring 22 is made of copper. Because the melting point of aluminum is 660.37 ℃, the temperature of aluminum liquid is certainly higher than 660.37 ℃, and the melting point of copper is 1083.4 ℃ and is far higher than the temperature of the aluminum liquid, the heat conduction ring 22 cannot be melted or deformed due to the high temperature of the aluminum liquid in the normal working process. The thermal conductivity of copper is about 400W/mK and is larger than that of aluminum and iron, so the heat dissipation performance of copper is better than that of aluminum and iron, and copper is a good thermal conductor. Through the heat conduction ring 22 made of copper, heat can be well transferred to one side of the heat conduction ring 22 from the other side of the heat conduction ring 22, and then the heat on one side of the heat conduction ring 22 is taken away by cooling water in the first cavity, so that the temperature of the heat conduction ring 22 is always lower than the temperature of a solidus line of aluminum liquid.
In one embodiment, the traction device further comprises a first drive assembly and a second drive assembly;
the first driving assembly and the second driving assembly are symmetrically arranged at two sides of the aluminum liquid box 10 about the central axis of the aluminum liquid guide pipe 12.
In one embodiment, the first drive assembly includes a first motor, a first drive shaft, and a first roller 32;
the aluminum alloy round pipe casting crystallization equipment further comprises a first support 31;
the first motor is arranged in the first bracket 31, the first transmission shaft is arranged at the upper end of the first bracket 31, two ends of the first transmission shaft are respectively and rotatably connected with the first bracket 31, the first motor is connected with any one end of the first transmission shaft, the first roller 32 is sleeved at the first transmission shaft, and the first roller 32 is arranged at a position close to the leading head 35;
and/or the second driving assembly comprises a second bracket 33, a second motor, a second transmission shaft and a second roller 34;
the aluminum alloy round pipe casting and crystallizing equipment further comprises a second bracket 33;
the second motor is arranged in the second bracket 33, the second transmission shaft is arranged at the upper end of the second bracket 33, two ends of the second transmission shaft are respectively rotatably connected with the second bracket 33, the second motor is connected with any one end of the second transmission shaft, the second roller 34 is sleeved at the second transmission shaft, and the second roller 34 is arranged in the direction close to the leading head 35;
the first bracket 31 and the second bracket 33 are symmetrically arranged on two sides of the molten aluminum box 10 about the central axis of the molten aluminum guiding pipe 12.
Further, the leading head 35 is firstly clamped by the clamp or the lifting hook moving in the vertical direction to lift upwards, when the pipe rises to a certain height, the leading head 35 is separated from the pipe, then the first roller 32 and the second roller 34 are clamped, the first motor and the second motor are started to drive the first roller 32 and the second roller 34 to rotate, the solidified pipe is lifted at a constant speed, and the aluminum liquid is solidified well in the heat conducting ring 22 and in front of the heat conducting ring and is continuously taken out.
One embodiment of the invention also provides a casting crystallization method of the aluminum alloy round pipe, which comprises the following steps:
the circulating cooling water is started, so that the cooling water can stably cool the heat conduction ring 22;
introducing aluminum liquid, wherein the aluminum liquid is stored in a higher smelting tank and enters an aluminum liquid box 10 of the crystallizer 20 through an aluminum liquid guide pipe 12;
the aluminum liquid is solidified into a pipe, the aluminum liquid in the aluminum liquid box 10 flows up to the crystallizer 20 under the action of pressure and reaches the leading head 35, and the cooling water takes away the heat of the heat-conducting ring 22, so that the aluminum liquid starts to solidify at the heat-conducting ring 22 and is fixedly connected with the connecting head 36;
the formed pipe is output upwards, after the aluminum liquid is solidified, the lead 35 is clamped by the clamp or the lifting hook moving in the vertical direction firstly and lifted upwards, when the pipe reaches a certain height, the pipe is clamped by the first roller 32 and the second roller 34, the solidified pipe is lifted at a constant speed, and the aluminum liquid is solidified well on the heat conducting ring 22 and the front of the pipe and is continuously taken out.
In summary, the following steps: through setting up the aluminium alloy pipe casting crystallization equipment in the below of smelting the groove, the good aluminium liquid of smelting flows into aluminium liquid box 10 department through the relation of self gravity, through the combination of core 11 and crystallizer 20, the size specification of tubular product has been decided, through the combination of crystallizer 20 and draw gear, under the poor situation of the gravitational potential energy of aluminium liquid, aluminium liquid in the aluminium liquid box 10 constantly upwards overflows, and aluminium liquid is when rising to crystallizer 20, crystallizer 20 takes away the heat of aluminium liquid, make aluminium liquid cool off at shaping space 13 and become the solid, and constantly upwards be drawn out under the drive of leader 35, thereby reach the purpose of tubular product production, and compare aluminium extrusion, aluminium liquid casting can be removed from through the relation of self pressure difference and constantly upwards take shape, aluminium bar casting, the surplus excision, mould production process, possess higher production efficiency and material utilization.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The aluminum alloy round pipe casting crystallization equipment is characterized by comprising a storage device, a crystallizer and a traction device which are sequentially arranged from bottom to top;
the storage device comprises an aluminum liquid box and a core;
one end of the core is arranged in the aluminum liquid box, and the other end of the core extends out of the aluminum liquid box and is positioned in the crystallizer; a molding space is formed in the crystallizer;
the traction device comprises a guide head; the lower end of the guide head is connected with a connector; the leader is disposed above the core.
2. The aluminum alloy round tube casting and crystallizing device as recited in claim 1, wherein the storage device further comprises an aluminum liquid conduit;
the aluminum liquid guide pipe is arranged on the side wall of the aluminum liquid box and is communicated with the aluminum liquid box.
3. The aluminum alloy round tube casting and crystallizing device of claim 2, wherein the crystallizer comprises a crystallizer shell and a heat conducting ring;
the crystallizer shell is of a hollow cylindrical structure and is arranged at the upper end of the crystallizer shell, the heat-conducting ring is arranged on the inner side of the crystallizer shell, one side of the heat-conducting ring is attached to the inner side of the crystallizer shell, and a cooling inner cavity is formed between the crystallizer shell and the heat-conducting ring.
4. The aluminum alloy round tube casting and crystallizing device of claim 3, wherein the crystallizer housing is provided with a water inlet and a water outlet;
the water inlet is arranged on the side surface of the crystallizer shell and is communicated with the outside and the cooling inner cavity; the water outlet is arranged at the upper end of the crystallizer shell and is communicated with the outside and the cooling inner cavity.
5. The aluminum alloy round tube casting and crystallizing device of claim 4, wherein the crystallizer further comprises a plurality of heat dissipation fins;
the plurality of heat dissipation fins are arranged in the cooling inner cavity and connected with one end of the heat conduction ring.
6. The aluminum alloy round tube casting and crystallizing device of claim 5, wherein the heat dissipation fins are made of graphite;
and the heat dissipation fins are all of a sheet structure, and the minimum included angle between the heat dissipation fins and the tangent plane of the heat conduction ring is 30-60 degrees.
7. The aluminum alloy round tube casting and crystallizing device of claim 6, wherein the heat conducting ring is made of copper.
8. The aluminum alloy round tube casting and crystallizing equipment of claim 2, wherein the traction device further comprises a first driving assembly and a second driving assembly;
the first driving assembly and the second driving assembly are symmetrically arranged on two sides of the aluminum liquid box about a central axis of the aluminum liquid guide pipe.
9. The aluminum alloy round tube casting and crystallizing equipment of claim 8, wherein the first driving assembly comprises a first motor, a first transmission shaft and a first roller;
the aluminum alloy round pipe casting crystallization equipment further comprises a first support;
the first motor is arranged in the first support, the first transmission shaft is arranged at the upper end of the first support, two ends of the first transmission shaft are respectively and rotatably connected with the first support, the first motor is connected with any one end of the first transmission shaft, the first roller is sleeved at the first transmission shaft, and the first roller is arranged in the direction close to the leading head;
and/or the second driving assembly comprises a second bracket, a second motor, a second transmission shaft and a second roller;
the aluminum alloy round pipe casting crystallization equipment further comprises a second support;
the second motor is arranged in the second support, the second transmission shaft is arranged at the upper end of the second support, two ends of the second transmission shaft are respectively and rotatably connected with the second support, the second motor is connected with any one end of the second transmission shaft, the second roller is sleeved at the second transmission shaft, and the second roller is arranged in the direction close to the leading head;
the first support and the second support are symmetrically arranged on two sides of the aluminum liquid box about a central axis of the aluminum liquid guide pipe.
10. The casting and crystallizing method of the aluminum alloy round pipe is characterized by comprising the following steps of:
starting circulating cooling water;
introducing aluminum liquid;
solidifying the aluminum liquid into a pipe;
and outputting the formed pipe upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566706.4A CN113399634A (en) | 2021-05-24 | 2021-05-24 | Aluminum alloy circular tube casting crystallization equipment and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110566706.4A CN113399634A (en) | 2021-05-24 | 2021-05-24 | Aluminum alloy circular tube casting crystallization equipment and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114054689A (en) * | 2021-11-15 | 2022-02-18 | 太原科技大学 | Casting device and method for large-scale gear steel cast ingot |
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| CN114054689A (en) * | 2021-11-15 | 2022-02-18 | 太原科技大学 | Casting device and method for large-scale gear steel cast ingot |
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Application publication date: 20210917 |