CN104959578B - Combined type device for preparing semi-solid paste - Google Patents
Combined type device for preparing semi-solid paste Download PDFInfo
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- CN104959578B CN104959578B CN201510380792.4A CN201510380792A CN104959578B CN 104959578 B CN104959578 B CN 104959578B CN 201510380792 A CN201510380792 A CN 201510380792A CN 104959578 B CN104959578 B CN 104959578B
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- outer barrel
- cone bucket
- graphite
- graphite cone
- combined type
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- 239000007787 solid Substances 0.000 title claims abstract description 32
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 64
- 239000010439 graphite Substances 0.000 claims abstract description 64
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 63
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000002002 slurry Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 229910000861 Mg alloy Inorganic materials 0.000 description 3
- 229910000676 Si alloy Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007770 graphite material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000010099 solid forming Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a combined type device for preparing semi-solid paste and belongs to the technical field of material science. An electric motor of the device is connected with an outer barrel to drive the outer barrel to rotate, a graphite conical barrel is embedded in the outer barrel, and heating pipes and cooling pipes are arranged on the side wall of the outer barrel alternately. A pouring gate is located on the upper face of the graphite conical barrel, and an outlet exactly faces the inner wall of the graphite conical barrel. The bottom of the graphite conical barrel is communicated with a forming device, and the forming device is connected with the lower end of the outer barrel. A screw conveying rod is arranged inside the forming device and below the graphite conical barrel, one end of the screw conveying rod is connected with a gear, the other end of the screw conveying rod exactly faces a die, and the die is located in a cooling device. The electric motor, the outer barrel and the graphite conical barrel are fixed to a rack of equipment. The device is simple in structure, easy to machine and low in cost, the semi-solid paste preparing flow is short, formation is easy, and certain application prospects are achieved.
Description
Technical field
The invention discloses a kind of combined type and prepare the device of semi solid slurry, belong to materials science field.
Background technology
Semi-solid metal forming refers to that metal is in the process of setting of solid-liquid interval, by it carries out forcing the methods such as inovulant that Quench, strong agitation, addition are suitable, the forming core and the growth process that promote primary phase are changed, it is thus achieved that a kind of crystal grain is tiny, the solid-liquid mixed slurry of granule rounding, even tissue distribution.
Semi-solid metal forming technology is the seventies in last century, Massachusetts Institute Technology M.C.Flemings professor discovers and develops with David doctor Spencer et al. and forms, semi-solid forming technology has the advantages such as microstructure segregation is few, production efficiency is high, amount of machining is few, studied by lot of domestic and international expert and team, mainly had thixotroping molding and rheoforging two kinds.Thixotroping molding refers mainly to the semi solid slurry of acquisition is prepared as blank, further according to product size blanking, is reheated to semi-solid temperature molding；Rheoforging refers to be maintained at the semi solid slurry of acquisition straight forming under conditions of solid-liquid silicon carbide, it is thus achieved that required part.Due to the heating of thixotroping shaping blank, transmission conveniently, forming process is easily controlled, it is simple to realize the production of automatization, obtains applying in actual production, but due to shortcomings such as its production cost height, production cycle length, uneven microstructure, its range of application is limited by arriving very much.Rheoforging due to low cost, with short production cycle, crystal grain is tiny, reduced in segregation, tissue distribution uniformly, shrink the advantages such as little, studied by numerous researchers.The low temperature by the inclined plane method of Japanese invention, University Of Nanchang Yang Xiangjie professor the most the earliest shears casting, the internal taper method of University of Science & Technology, Beijing Mao Weimin professor and the transfer rod induced nucleation method of Kunming University of Science and Technology Zhourong's cutting edge of a knife or a sword professor, all achieve the achievement of excellence, but in experimentation, the problems such as sizing, tissue distribution are uneven still exist, and cause and cannot prepare semi solid slurry continuously.
Summary of the invention
It is an object of the invention to provide a kind of combined type and prepare the device of semi solid slurry, described device includes motor 1, chiller 4, mould 5, shaped device 6, gear 7, spiral conveyor rod 8, striker plate 9, outer barrel 10, graphite cone bucket 11, adds heat pipe 12, cooling tube 13, fixing bearing 14, running channel 15；Motor 1 is connected drive outer barrel 10 and rotates with outer barrel 10, and the inside of outer barrel 10 is inlaid with graphite cone bucket 11, the sidewall of outer barrel 10 is alternately provided with and adds heat pipe 12 and cooling tube 13；Running channel 15 is positioned at above graphite cone bucket 11, and graphite is just being bored the inwall of bucket 11 by outlet；The bottom of graphite cone bucket 11 connects with shaped device 6, and the lower end of shaped device 6 and outer barrel 10 connects；The inside of shaped device 6, graphite cone bucket 11 spiral conveyor rod 8 is arranged below, one end of spiral conveyor rod 8 is connected with gear 7, and another is proper to mould 5, and mould 5 is positioned at the inside of chiller 4；Motor 1, outer barrel 10, graphite cone bucket 11 is fixed in the frame of equipment.
Motor 1 of the present invention is connected with outer barrel 10 by belt pulley 2, belt 3.
Graphite of the present invention cone bucket 11 internal taper is 0.5 ° ~ 10 °, a diameter of 10mm ~ 100mm of lower port, and cone bucket height is 200mm ~ 1000mm, and cone bucket wall thickness is 5mm ~ 50mm.
The rotating speed of outer barrel 10 of the present invention and graphite cone bucket 11 is 100r ~ 3000r.
The principle of the present invention is: just pour into a mould graphite cone cylinder inwall through running channel after over-heat metal melt is heated to predetermined temperature, under the effect of cone cylinder centrifugal force and molten metal gravity, molten metal is sprawled around cone cylinder inwall and formed has certain thickness melt film, under the pressure of graphite material and chiller is supercool, promote melt film entirety supercool, the internal a large amount of forming core of primary phase of the melt film that induction is sprawled, the semi solid slurry made directly is collected by following shaped device, by screw conveyor, slurry is delivered directly to mould port, under chiller forces chilling action, obtain blank or the finished product of the given shape with subsphaeroidal or tiny global microstructure.
Beneficial effects of the present invention:
(1) device of the present invention can obtain and have even tissue, tiny, the semi solid slurry alloy of rounding；The semi-solid alloy slurry prepared by this device, its microscopic structure obtains a certain degree of refinement, and primary phase distribution is more uniform, and form more convergence is spherical.
(2) rotating speed in assembly of the invention can regulate with conical graphite rod size, can select more reasonably parameter according to experiment condition concrete in experimentation；
(3) assembly of the invention can obtain pure semi-solid alloy；In semi solid slurry preparation process, it is not necessary to add the inovulants such as alterant, and gas shield can be carried out as required.
(4) apparatus of the present invention simple in construction, low cost, efficiency is high, can prepare semi solid slurry continuously, and combines with former, blank or part can be directly obtained, reduce the cost of the techniques such as blank storage.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention prepares the device of semi solid slurry；
Fig. 2 is the micro-organization chart that example 1 prepares the semi solid slurry of Al-25%Si alloy；
Fig. 3 is the micro-organization chart that example 2 prepares the semi solid slurry of Al-23%Si-4.5%Fe-3%Cu-1%Mg alloy.
In figure: 1-motor, 2-belt pulley, 3-belt, 4-chiller, 5-mould, 6-shaped device, 7-gear, 8-spiral conveyor rod, 9-striker plate, 10-outer barrel, 11-graphite cone bucket, 12-adds heat pipe, 13-cooling tube, and 14-fixes bearing, 15-running channel.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to described content.
Embodiment 1
Combined type described in the present embodiment is prepared the device of semi solid slurry and is included motor 1, chiller 4, mould 5, shaped device 6, gear 7, spiral conveyor rod 8, striker plate 9, outer barrel 10, graphite cone bucket 11, adds heat pipe 12, cooling tube 13, fixing bearing 14, running channel 15；Motor 1 is connected drive outer barrel 10 and rotates with outer barrel 10, and the inside of outer barrel 10 is inlaid with graphite cone bucket 11, the sidewall of outer barrel 10 is alternately provided with and adds heat pipe 12 and cooling tube 13；Running channel 15 is positioned at above graphite cone bucket 11, and graphite is just being bored the inwall of bucket 11 by outlet；The bottom of graphite cone bucket 11 connects with shaped device 6, and the lower end of shaped device 6 and outer barrel 10 connects；The inside of shaped device 6, graphite cone bucket 11 spiral conveyor rod 8 is arranged below, one end of spiral conveyor rod 8 is connected with gear 7, and another is proper to mould 5, and mould 5 is positioned at the inside of chiller 4；Motor 1, outer barrel 10, graphite cone bucket 11 is fixed in the frame of equipment, as shown in Figure 1.
Described in the present embodiment, motor 1 is connected with outer barrel 10 by belt pulley 2, belt 3.
Described in the present embodiment, graphite cone bucket 11 internal taper is 2 °, a diameter of 20mm of lower port, and cone bucket height is 200mm, and cone bucket wall thickness is 10mm.
The rotating speed of the present embodiment said tub 10 and graphite cone bucket 11 is 200r/min.
Device described in the present embodiment, for preparing the semi solid slurry of Al-25%Si alloy, comprises the steps:
(1) Al-25%Si alloy (775 DEG C of liquidus temperature line, solidus temperature 564 DEG C) low overheat melt mixed employing intermediate frequency furnace melting prepared is uniform；
(2) technological parameter is set: graphite cone bucket rotating speed is 200r/min, angle of inclination is 3 ° and a diameter of 20mm of lower port；Graphite cone bucket is just poured into a mould by above-mentioned low overheat melt with constant speed, under the effect of graphite cone cylinder centrifugal force and molten metal gravity, melt is sprawled at graphite cone bucket inner surface and is flowed downward twist, sprawl at graphite cone bucket inwall and there is certain thickness melt film, under the pressure of graphite material and cooling tube is supercool, promote melt film entirety supercool, the internal a large amount of forming core of primary phase of the melt film that induction is sprawled, the semi solid slurry made directly is collected by following shaped device, by spiral driven rod, slurry is delivered directly to mould port, under chiller forces chilling action, obtain the blank of the given shape with subsphaeroidal or tiny global microstructure, as shown in Figure 2.
Embodiment 2
Combined type described in the present embodiment is prepared the device of semi solid slurry and is included motor 1, chiller 4, mould 5, shaped device 6, gear 7, spiral conveyor rod 8, striker plate 9, outer barrel 10, graphite cone bucket 11, adds heat pipe 12, cooling tube 13, fixing bearing 14, running channel 15；Motor 1 is connected drive outer barrel 10 and rotates with outer barrel 10, and the inside of outer barrel 10 is inlaid with graphite cone bucket 11, the sidewall of outer barrel 10 is alternately provided with and adds heat pipe 12 and cooling tube 13；Running channel 15 is positioned at above graphite cone bucket 11, and graphite is just being bored the inwall of bucket 11 by outlet；The bottom of graphite cone bucket 11 connects with shaped device 6, and the lower end of shaped device 6 and outer barrel 10 connects；The inside of shaped device 6, graphite cone bucket 11 spiral conveyor rod 8 is arranged below, one end of spiral conveyor rod 8 is connected with gear 7, and another is proper to mould 5, and mould 5 is positioned at the inside of chiller 4；Motor 1, outer barrel 10, graphite cone bucket 11 is fixed in the frame of equipment, as shown in Figure 1.
Described in the present embodiment, motor 1 is connected with outer barrel 10 by belt pulley 2, belt 3.
Described in the present embodiment, graphite cone bucket 11 internal taper is 6 °, a diameter of 60mm of lower port, and cone bucket height is 600mm, and cone bucket wall thickness is 40mm.
The rotating speed of the present embodiment said tub 10 and graphite cone bucket 11 is 2000r/min.
Device described in the present embodiment, for preparing the semi solid slurry of Al-23%Si-4.5%Fe-3%Cu-1%Mg alloy, comprises the steps:
(1) Al-23%Si-4.5%Fe-3%Cu-1%Mg alloy (825 DEG C of liquidus temperature line, solidus temperature 575 DEG C) low overheat melt mixed employing intermediate frequency furnace melting prepared is uniform；
(2) technological parameter is set: graphite cone bucket rotating speed is 2000r/min, angle of inclination is 8 ° and a diameter of 40mm of lower port.Graphite cone bucket is just poured into a mould by above-mentioned low overheat melt with constant speed, under the effect of graphite cone cylinder centrifugal force and molten metal gravity, melt is sprawled at graphite cone bucket inner surface and is flowed downward twist, sprawl at graphite cone bucket inwall and there is certain thickness melt film, under the pressure of graphite material and cooling tube is supercool, promote melt film entirety supercool, the internal a large amount of forming core of primary phase of the melt film that induction is sprawled, the semi solid slurry made directly is collected by following shaped device, by spiral driven rod, slurry is delivered directly to mould port, under chiller forces chilling action, obtain the blank of the given shape with subsphaeroidal or tiny global microstructure, as shown in Figure 3.
Embodiment 3
Combined type described in the present embodiment is prepared the device of semi solid slurry and is included motor 1, chiller 4, mould 5, shaped device 6, gear 7, spiral conveyor rod 8, striker plate 9, outer barrel 10, graphite cone bucket 11, adds heat pipe 12, cooling tube 13, fixing bearing 14, running channel 15；Motor 1 is connected drive outer barrel 10 and rotates with outer barrel 10, and the inside of outer barrel 10 is inlaid with graphite cone bucket 11, the sidewall of outer barrel 10 is alternately provided with and adds heat pipe 12 and cooling tube 13；Running channel 15 is positioned at above graphite cone bucket 11, and graphite is just being bored the inwall of bucket 11 by outlet；The bottom of graphite cone bucket 11 connects with shaped device 6, and the lower end of shaped device 6 and outer barrel 10 connects；The inside of shaped device 6, graphite cone bucket 11 spiral conveyor rod 8 is arranged below, one end of spiral conveyor rod 8 is connected with gear 7, and another is proper to mould 5, and mould 5 is positioned at the inside of chiller 4；Motor 1, outer barrel 10, graphite cone bucket 11 is fixed in the frame of equipment.
Described in the present embodiment, motor 1 is connected with outer barrel 10 by belt pulley 2, belt 3.
Described in the present embodiment, graphite cone bucket 11 internal taper is 10 °, a diameter of 90mm of lower port, and cone bucket height is 1000mm, and cone bucket wall thickness is 20mm.
The rotating speed of the present embodiment said tub 10 and graphite cone bucket 11 is 3000r/min.
Claims (4)
1. a combined type prepares the device of semi solid slurry, it is characterised in that: include motor (1), chiller (4), mould (5), shaped device (6), gear (7), spiral conveyor rod (8), striker plate (9), outer barrel (10), graphite cone bucket (11), add heat pipe (12), cooling tube (13), fixing bearing (14), running channel (15)；Motor (1) is connected drive outer barrel (10) and rotates with outer barrel (10), and the inside of outer barrel (10) is inlaid with graphite cone bucket (11), the sidewall of outer barrel (10) is alternately provided with and adds heat pipe (12) and cooling tube (13)；Running channel (15) is positioned at above graphite cone bucket (11), and graphite is just being bored the inwall of bucket (11) by outlet；The bottom of graphite cone bucket (11) connects with shaped device (6), and the lower end of shaped device (6) and outer barrel (10) connects；The inside of shaped device (6), graphite cone bucket (11) spiral conveyor rod (8) is arranged below, one end of spiral conveyor rod (8) is connected with gear (7), and another is proper to mould (5), and mould (5) is positioned at the inside of chiller (4)；Motor (1), outer barrel (10), graphite cone bucket (11) are fixed in the frame of equipment.
Combined type the most according to claim 1 prepares the device of semi solid slurry, it is characterised in that: motor (1) is connected with outer barrel (10) by belt pulley (2), belt (3).
Combined type the most according to claim 1 prepares the device of semi solid slurry, it is characterized in that: described graphite cone bucket (11) internal taper is 0.5 ° ~ 10 °, a diameter of 10mm ~ the 100mm of lower port, cone bucket height is 200mm ~ 1000mm, and cone bucket wall thickness is 5mm ~ 50mm.
Combined type the most according to claim 1 prepares the device of semi solid slurry, it is characterised in that: outer barrel (10) and graphite cone bucket (11) rotating speed 100r/min ~ 3000r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380792.4A CN104959578B (en) | 2015-06-30 | 2015-06-30 | Combined type device for preparing semi-solid paste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510380792.4A CN104959578B (en) | 2015-06-30 | 2015-06-30 | Combined type device for preparing semi-solid paste |
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| CN104959578A CN104959578A (en) | 2015-10-07 |
| CN104959578B true CN104959578B (en) | 2017-01-11 |
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| CN201510380792.4A Expired - Fee Related CN104959578B (en) | 2015-06-30 | 2015-06-30 | Combined type device for preparing semi-solid paste |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107020355A (en) * | 2017-04-25 | 2017-08-08 | 昆明理工大学 | A kind of device for preparing semi solid slurry |
| CN108580814B (en) * | 2018-03-29 | 2023-05-02 | 南昌大学 | Method for preparing metal semi-solid slurry |
| CN108687323A (en) * | 2018-06-29 | 2018-10-23 | 昆明理工大学 | A kind of continuous thixoextruding method and device of tin bronze alloys semisolid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03258452A (en) * | 1990-03-09 | 1991-11-18 | Honda Motor Co Ltd | Injection forming apparatus for metal formed body |
| JPH11104799A (en) * | 1997-09-29 | 1999-04-20 | Mazda Motor Corp | Structure of die for injection molding light metal alloy and molding for light metal alloy parts using it |
| CN1373020A (en) * | 2001-02-28 | 2002-10-09 | 北京科技大学 | Drum-type apparatus for preparing semi-solid metallic slurry and shaping it |
| CN102909322A (en) * | 2012-09-25 | 2013-02-06 | 北京科技大学 | Continuous production device for semisolid slurry |
| CN203508951U (en) * | 2013-08-06 | 2014-04-02 | 昆明理工大学 | Wave taper-shaped centrifugal shearing and chilling device for preparing semi-solid state sizing agent |
| CN205020784U (en) * | 2015-06-30 | 2016-02-10 | 昆明理工大学 | Device of half solid -state thick liquids of combined type preparation |
-
2015
- 2015-06-30 CN CN201510380792.4A patent/CN104959578B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03258452A (en) * | 1990-03-09 | 1991-11-18 | Honda Motor Co Ltd | Injection forming apparatus for metal formed body |
| JPH11104799A (en) * | 1997-09-29 | 1999-04-20 | Mazda Motor Corp | Structure of die for injection molding light metal alloy and molding for light metal alloy parts using it |
| CN1373020A (en) * | 2001-02-28 | 2002-10-09 | 北京科技大学 | Drum-type apparatus for preparing semi-solid metallic slurry and shaping it |
| CN102909322A (en) * | 2012-09-25 | 2013-02-06 | 北京科技大学 | Continuous production device for semisolid slurry |
| CN203508951U (en) * | 2013-08-06 | 2014-04-02 | 昆明理工大学 | Wave taper-shaped centrifugal shearing and chilling device for preparing semi-solid state sizing agent |
| CN205020784U (en) * | 2015-06-30 | 2016-02-10 | 昆明理工大学 | Device of half solid -state thick liquids of combined type preparation |
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