CN109079110A - The technique and its equipment of interruption preparation liquid silumin or silumin semi solid slurry - Google Patents
The technique and its equipment of interruption preparation liquid silumin or silumin semi solid slurry Download PDFInfo
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- CN109079110A CN109079110A CN201811026540.1A CN201811026540A CN109079110A CN 109079110 A CN109079110 A CN 109079110A CN 201811026540 A CN201811026540 A CN 201811026540A CN 109079110 A CN109079110 A CN 109079110A
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- Prior art keywords
- silumin
- liquid
- slurrying
- holding furnace
- semi solid
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- 229910000551 Silumin Inorganic materials 0.000 title claims abstract description 98
- 239000007788 liquid Substances 0.000 title claims abstract description 97
- 239000002002 slurry Substances 0.000 title claims abstract description 66
- 239000007787 solid Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 34
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 39
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 37
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 34
- 239000010703 silicon Substances 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000004321 preservation Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 19
- 239000000498 cooling water Substances 0.000 claims description 12
- 238000004537 pulping Methods 0.000 claims description 8
- 230000004927 fusion Effects 0.000 claims description 4
- 238000010348 incorporation Methods 0.000 claims description 4
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 description 15
- 239000004411 aluminium Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005245 sintering Methods 0.000 description 5
- 239000000956 alloy Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000005470 impregnation Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000001540 jet deposition Methods 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000009715 pressure infiltration Methods 0.000 description 2
- 239000011856 silicon-based particle Substances 0.000 description 2
- 239000011863 silicon-based powder Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The present invention provides the technique of interruption preparation liquid silumin or silumin semi solid slurry, using molten aluminum and silicon liquid as raw material, wherein molten aluminum accounts for the 22-70% of total amount, perhaps molten aluminum and silicon liquid are thoroughly mixed to form liquid silumin or are cooled to form silumin semi solid slurry interruption preparation liquid silumin by silumin semi solid slurry.It is interrupted the equipment of preparation solution state silumin or silumin semi solid slurry, for being interrupted preparation liquid silumin or silumin semi solid slurry, including pulper, holding furnace, heat insulation furnace cover, reflux ceramic tube, efferent duct and cooling device, the pulper passes through heat insulation furnace cover and protrudes into holding furnace, the reflux ceramic tube is set in holding furnace, one end is set to above holding furnace, the other end is arranged against slurrying motor spindle, the cooling device is set to heat preservation furnace bottom, and described efferent duct one end is protruded into holding furnace.
Description
Technical field
The present invention relates to the technical fields of light-alloy preparation process, especially interruption preparation liquid silumin or height
The technique and its equipment of silico-aluminum semi solid slurry.
Background technique
The bianry alloy that silumin is made of silicon and aluminium is a kind of Metal Substrate thermal management materials.Silumin
Material is able to maintain silicon and the respective excellent properties of aluminium, and the content of silicon, aluminium is quite abundant, and the technology of preparing of silicon powder is mature,
It is low in cost, while there are no pollution to the environment for this material, it is harmless.Silumin density is in 2.4~2.7g/cm3
Between, for thermal expansion coefficient (CTE) between 7-20ppm/ DEG C, the density and thermal expansion coefficient of alloy material can be made by improving silicone content
It significantly reduces.Meanwhile silumin also has thermal conductivity good, specific strength and rigidity are higher, with gold, silver, copper, nickel plating
Performance is good, solderable with substrate, is easy to the superior functions such as accurate machining, is a kind of electronic package material having a extensive future,
Especially in high-tech sectors such as space flight and aviation, space technology and mobile electronic devices.
Existing silumin composite material and preparation method thereof mainly include the following types:
First, melting and casting method:
Melting and casting method equipment is simple, at low cost and can realize large-scale industrial production, is that alloy material is widest
Preparation method.Using the silumin of routine casting, the distributed pole of Si is uneven, and when processing is also easy to produce crackle, and material exists
Serious component segregation, coarse grains, the limitations such as poor mechanical property, it is difficult to carry out the subsequent processing such as being machined.With conjunction
The raising of silicone content in gold, problem is more prominent, so routine casting is difficult to prepare silumin material.
Second, method of impregnation:
Method of impregnation is divided into pressure infiltration method and pressure-free impregnation method.Pressure infiltration method is added by mechanical pressurization or compressed gas
Pressure can solve reinforcing material and molten metal be nonwetting and infiltrate incomplete so that parent metal melt immerses enhancing body space
The problems such as, but since compression system is relative complex, therefore limit its application development.
Third, powder metallurgy:
The main technique of powder metallurgic method is to keep a certain proportion of aluminium powder and silicon powder and adhesive evenly dispersed, by dry
The methods of pressure, injection make powder mixed-forming, and finally sintering forms comparatively dense material under protective atmosphere.The method solves
Silicon particle and aluminum substrate wetability are bad, and silicon particle is difficult to the problem of melt is added, and material can be once-forming, few to cut
Processing, overcomes the shortcomings that metal-base composites is difficult to.But this method and process is complicated, it is difficult to accurately be controlled
System, die mould is not fine and close, at high cost.
4th, vacuum hot-pressing:
A kind of sintering process that vacuum hot-pressing refers to extrusion forming and pressure sintering while carrying out, its advantage is that: (1) powder
The easy Plastic Flow in end and densification；(2) sintering temperature and sintering time are short；(3) consistency is high.General technology are as follows: in vacuum
Under the conditions of, by powder in die cavity, powder is heated while pressurization, is pressed to form dense uniform by the short period
Material.But due to itself complex procedures, poor operability limits application of the technology in silumin preparation.
5th, rapid cooling/jet deposition:
Rapid cooling/spray deposition technique is to aoxidize the problems such as serious to overcome complex procedures, with the skills such as powder metallurgy
Art contends with and a kind of flash set technology for growing up.Since this technique has the incomparable advantage of other techniques,
It quickly grows in recent years.Rapid cooling/jet deposition has the advantage that (1) without gross segregation；(2) tiny and uniform etc.
Axialite microscopic structure；(3) tiny primary precipitated phase；(4) oxygen content is low；(5) hot-working character is improved.
In view of this, the present inventor specially devises interruption preparation liquid silumin or silumin semisolid
Thus the technique and its equipment of slurry, this case generate.
Summary of the invention
One of the objects of the present invention is to provide interruption preparation liquid silumin or silumin semi solid slurries
The technique of material, using molten aluminum and silicon liquid as raw material, wherein molten aluminum accounts for the 22-70% of total amount, interruption preparation liquid silumin or
Person's silumin semi solid slurry, includes the following steps,
A: starting pulper；
B: by the preheating temperature of holding furnace to assigned temperature: 800-1430 DEG C；
C: proportionally molten aluminum and silicon liquid are added in holding furnace；
D: the negative pressure that the rotor high speed rotation being set in the pulper in holding furnace is formed, the small molten aluminum of density is in silicon liquid
Top is intracavitary by the slurrying that reflux ceramic tube sucks pulper from the material sucking port of slurrying motor spindle, at the same time the big silicon of density
Liquid is in heat preservation furnace bottom, and directly intracavitary from the slurrying of the material sucking port of slurrying motor spindle sucking pulper, the intracavitary blade of slurrying is high
Speed rotates while driving molten aluminum and silicon liquid high-speed rotation, forms the mixed liquor of the two；
E: the intracavitary mixed liquor high-speed rotation of slurrying simultaneously, is shot out and by the suction of bottom by several apertures on stator
Material mouth, which sucks in project to reach again, mixes two kinds of liquid adequately, mixes 2-5 minutes, makes silicon liquid, molten aluminum with smaller liquid
Group's mutually fusion.
It further, further include following steps,
F: being mixed into the predetermined time, the cooling water ring work being set to below holding furnace, and logical cooling water ring absorbs greatly
Latent heat is measured, while the rotor in pulper remains unchanged high speed rotation, both refined liquid group or has refined due to cooling and formed
Crystal grain；
G: when temperature is dropped to when the solid rate of needs, stopping cooling water ring working, while by pressure the slurry made
Material is sent to user by efferent duct and uses, wherein the solid rate range is 0.05-0.5.
Further, the pressure is generated by pressure pump or baric systerm.
Further, further include step H: after the completion of the slurry output in holding furnace, repeating step B-G.
Further, liquid group size is inversely proportional with incorporation time.
The second object of the present invention is to provide interruption preparation liquid silumin or silumin semi solid slurry
The equipment of material, for being interrupted preparation liquid silumin or silumin semi solid slurry, including pulper, heat preservation
Furnace, heat insulation furnace cover, reflux ceramic tube, efferent duct and cooling device, the pulper pass through heat insulation furnace cover and protrude into holding furnace,
The reflux ceramic tube is set in holding furnace, and one end is set to above holding furnace, and the other end is arranged against slurrying motor spindle, institute
It states cooling device and is set to heat preservation furnace bottom, described efferent duct one end is protruded into holding furnace；
The pulper includes driving mechanism and pulping mechanism, and the pulping mechanism includes stator, rotor and blade, institute
It is hollow to state stator interior, and described device is set to stator interior, forms slurrying chamber between the rotor bottom and stator, it is described
Blade is connect with rotor, and intracavitary positioned at slurrying, which, which extend into holding furnace, carries out slurrying, and the driving mechanism drives
Rotor is rotated in stator interior；The stator bottom is equipped with the material sucking port being connected to slurrying cavity, and in the slurrying cavity
Aperture is offered on stator side wall；The driving mechanism drives rotor rotation, blade rotate to be formed negative pressure make mixed liquor or
It is intracavitary that slurry from material sucking port enters slurrying, and injects to stator exterior from aperture.
Further, the minimum clearance between the rotor and stator is 1~2000 micron.
Further, the aperture axis of the aperture and the axis of rotor rotation are formed down 20~80 ° of angles, aperture
It is 0.1-20 millimeters, and the aperture is at least arranged two.
Further, the blade has 2~16.
Further, the slurrying motor spindle and efferent duct one end are close to heat preservation furnace bottom setting, the cooling device
Using cooling water ring.
The present invention is the technique with interruption preparation liquid silumin or silumin semi solid slurry, while handle
The silicon liquid and molten aluminum of liquid are uniformly mixed to form the liquid silumin coexisted or to form liquid admittedly altogether by cooling
The very thin silumin semi solid slurry of crystal grain is deposited, is used for high-pressure casting, extrusion casint, low pressure casting, gravitational casting；
The present invention is while the simply and easily preparation process for giving silumin expands its application range not only but also raising
Its mechanical performance.Interruption preparation liquid silumin or silumin semi solid slurry of the invention simultaneously is set
It is standby, the preparation of the high sial of liquid or silumin semi solid slurry can be fast implemented, is not only simple in structure, can also be mentioned significantly
High preparation efficiency reduces preparation cost.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of present device；
Fig. 2 is the structural schematic diagram of pulper of the present invention.
Label declaration:
01- pulper, 02- heat insulation furnace cover, 03- holding furnace, 04- reflux ceramic tube, 05- cooling device, 06- efferent duct,
10- pulping mechanism, 11- stator, 111- slurrying chamber, 112- material sucking port, 113- aperture, 12- rotor, 13- blade, 20- driving machine
Structure, 21- motor, the first runner of 22-, 23- transmission belt, the second runner of 24-, 25- shaft, 26- bearing.
Specific embodiment
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Embodiment 1
The technique of interruption preparation liquid silumin or silumin semi solid slurry is original with molten aluminum and silicon liquid
Material, wherein molten aluminum accounts for the 22% of total amount, interruption preparation liquid silumin or silumin semi solid slurry, including such as
Lower step,
A: starting pulper 01；
B: by the preheating temperature of holding furnace 03 to assigned temperature: 1430 DEG C；
C: proportionally by (under liquid, the density of silicon is greater than aluminium when synthermal in molten aluminum and silicon liquid addition holding furnace 03
Density)；
D: the negative pressure that 12 high speed rotation of rotor being set in the pulper 01 in holding furnace 03 is formed, the small molten aluminum of density
Above silicon liquid through reflux ceramic tube 04 out of, the material sucking port 112 of 01 bottom of pulper sucks pulper 01 slurrying chamber 111,
The big silicon liquid of density directly sucks pulper 01 from the material sucking port 112 of 01 bottom of pulper in 03 bottom of holding furnace at the same time
Slurrying chamber 111 in, 13 high speed rotation of blade in slurrying chamber 111 drives molten aluminum and silicon liquid high-speed rotation simultaneously, both is formed
Mixed liquor；
E: the mixed liquor high-speed rotation in slurrying chamber 111 simultaneously, is shot out and quilt by several apertures 113 on stator 11
The material sucking port 112 of bottom, which sucks in project again, to be reached and mixes two kinds of liquid adequately, is mixed 5 minutes, make silicon liquid, molten aluminum with
Smaller liquid group mutually fusion, wherein liquid group size is inversely proportional with incorporation time；
F: being mixed into the predetermined time, can directly be exported by delivery pipe at this time liquid silumin for users to use or
Person is set to the cooling water ring work of 03 lower section of holding furnace, and logical cooling ring absorbs mass crystallization latent heat, while in pulper 01
Rotor 12 remain unchanged high speed rotation, both refined liquid group or refined the crystal grain formed due to cooling；
G: when temperature is dropped to when the solid rate of needs, stopping cooling water ring working, while by pressure the slurry made
Material is sent to user's use by efferent duct 06, and wherein pressure is generated by pressure pump or baric systerm, wherein the solid rate
Range is 0.05-0.5.
H: after the completion of the slurry output in holding furnace 03, above-mentioned liquid silumin or silumin half are repeated
The step of solid size.
Semi solid slurry is to carry out strong stirring in metal solidification process to make its dendrite fragmentation, obtains a kind of even suspension
The solid-liquid mixed slurry of some almost spherical solid phase particles.Its good fluidity can be used for high-pressure casting, extrusion casint.Filling
When gas be not easy to be involved in, its forming temperature is low, and die life is long, and deformation drag is small, high production efficiency；High-pressure when forming
Make the metal solidified generate retrospective deformation, it is not solidified continue under high pressure solidification thus product shrinkage cavity shrinkage porosity it is few, tissue cause
Close, mechanical performance is higher than common casting close to forging, thermally processable, high without riser feeding, metal utilization.It is suitble to
It is thin, heavy section casting to produce the molding for being also suitble to the wider any alloy material in various crystallization temperature intervals.
The properties of product of liquid silumin or silumin the semi solid slurry production prepared using this technique
Etc. having the following advantages:
1, high production efficiency；
2, simple process, silumin be blended and semi-solid slurrying is completed in same holding furnace 03；
3, energy conservation and environmental protection；
4, grain size is controllable in the silicon of silumin, the dispersion degree of aluminium and semi solid slurry；
5, because solidification efficiently against segregation problems, can make the mechanical performance of casting fastlyer when being semi solid slurry molding
It is good；
6, equipment and product cost are low.
Embodiment 2
The technique of interruption preparation liquid silumin or silumin semi solid slurry is original with molten aluminum and silicon liquid
Material, wherein molten aluminum accounts for the 70% of total amount, interruption preparation liquid silumin or silumin semi solid slurry, including such as
Lower step,
A: starting pulper 01；
B: by the preheating temperature of holding furnace 03 to assigned temperature: 800 DEG C；
C: proportionally by (under liquid, the density of silicon is greater than aluminium when synthermal in molten aluminum and silicon liquid addition holding furnace 03
Density)；
D: the negative pressure that 12 high speed rotation of rotor being set in the pulper 01 in holding furnace 03 is formed, the small molten aluminum of density
Above silicon liquid through reflux ceramic tube 04 out of, the material sucking port 112 of 01 bottom of pulper sucks pulper 01 slurrying chamber 111,
The big silicon liquid of density directly sucks pulper 01 from the material sucking port 112 of 01 bottom of pulper in 03 bottom of holding furnace at the same time
Slurrying chamber 111 in, 13 high speed rotation of blade in slurrying chamber 111 drives molten aluminum and silicon liquid high-speed rotation simultaneously, both is formed
Mixed liquor；
E: the mixed liquor high-speed rotation in slurrying chamber 111 simultaneously, is shot out and quilt by several apertures 113 on stator 11
The material sucking port 112 of bottom, which sucks in project again, to be reached and mixes two kinds of liquid adequately, is mixed 2 minutes, make silicon liquid, molten aluminum with
Smaller liquid group mutually fusion, wherein liquid group size is inversely proportional with incorporation time；
F: being mixed into the predetermined time, can directly be exported by delivery pipe at this time liquid silumin for users to use or
Person is set to the cooling water ring work of 03 lower section of holding furnace, and logical cooling ring absorbs mass crystallization latent heat, while in pulper 01
Rotor 12 remain unchanged high speed rotation, both refined liquid group or refined the crystal grain formed due to cooling；
G: when temperature is dropped to when the solid rate of needs, stopping cooling water ring working, while by pressure the slurry made
Material is sent to user's use by efferent duct 06, and wherein pressure is generated by pressure pump or baric systerm, wherein the solid rate
Range is 0.05-0.5.
H: after the completion of the slurry output in holding furnace 03, above-mentioned liquid silumin or silumin half are repeated
The step of solid size.
The advantages of the present embodiment, is same as Example 1.
By the interruption preparation liquid silumin or silumin half of the embodiment 1 and embodiment 2 in the application
The technique and its equipment of solid size and manufactured liquid silumin or silumin semi solid slurry pass through high pressure
The mechanical performance comparing result that part and part same as described above made of the prior art is made in casting is as follows:
| Mechanical performance | |
| Embodiment 1 | Well |
| Embodiment 2 | Well |
| The prior art | Generally |
As seen from the above table, using the embodiment 1 of the processing step of the application and embodiment 2, compared with the prior art in mechanicalness
Can on more preferably, and have greatly improved.
Embodiment 3
Referring to Fig. 1, the equipment of interruption preparation liquid silumin or silumin semi solid slurry, between being used for
Disconnected preparation liquid silumin or silumin semi solid slurry, including pulper 01, holding furnace 03, heat insulation furnace cover
02, flow back ceramic tube 04, efferent duct 06 and cooling device 05, and pulper 01 passes through heat insulation furnace cover 02 and protrudes into holding furnace 03,
Reflux ceramic tube 04 is set in holding furnace 03, and one end is set to 03 top of holding furnace, and the other end is set against 01 bottom of pulper
It sets, for the liquid that density is small, is flowed into inside pulper 01 from reflux ceramic tube 04, cooling device 05 is set to holding furnace 03
Bottom, 06 one end of efferent duct are protruded into holding furnace 03.01 bottom of pulper is arranged close to 03 bottom of holding furnace, convenient for by bottom
Liquid or mixed liquor or slurry preferably suck mixing in pulper 01, and 06 one end of efferent duct is close to 03 bottom of holding furnace
Setting, mixed liquor or slurry convenient for completing preparation are completely exported to be used to user, and cooling device 05 uses cooling ring.
Referring to Fig. 2, pulper 01 includes driving mechanism 20 and pulping mechanism 10, pulping mechanism 10 includes stator 11, turns
Son 12 and blade 13,11 inner hollow of stator, and device is set to inside stator 11, the minimum between rotor 12 and stator 11
Gap is 1~2000 micron, and slurrying chamber 111 is formed between 12 bottom of rotor and stator 11, and blade 13 connect with rotor 12, is located at
In slurrying chamber 111, blade 13 has 2~16；The pulping mechanism 10, which is extend into holding furnace 03, carries out slurrying, 20 band of driving mechanism
Turn 12 is in 11 internal rotating of stator；11 bottom of stator is equipped with the material sucking port 112 being connected to slurrying cavity, and in slurrying sky
Aperture 113 is offered on 11 side wall of stator in chamber, the axis that the aperture axis and rotor 12 of aperture 113 rotate is formed down 20
~80 ° of angles, aperture are 0.1-20 millimeters, and specific aperture and angle can be configured according to 03 size of holding furnace, with adjustment
The mixed liquor range that perhaps slurry is projected from aperture 113 is to guarantee that the mixed liquor of holding furnace 03 or slurry obtain sufficiently
Mixing, the quantity of aperture 113 can be configured as needed, and preferred aperture 113 is at least arranged two, and aperture 113 with
12 rotary shaft of rotor, 25 line is that axis is symmetrical, and with uniform, sufficient injection mixed liquor or slurry, aperture 113 can be more
It is arranged so that mixing efficiency can be improved throughout entire slurrying portion；Driving mechanism 20 drives rotor 12 to rotate, 13 rotary of blade
Enter mixed liquor or slurry in slurrying chamber 111 from material sucking port 112 at negative pressure, and is injected to outside stator 11 from aperture 113.
Driving mechanism 20 includes motor 21, the first runner 22, the second runner 24, transmission belt 23 and shaft 25, motor 21
Output end connects the first runner 22, and transmission belt 23 is separately connected the second runner 24, and the second runner 24 is connect with shaft 25, shaft 25
By being fixedly connected at the top of bearing 26 and rotor 12.The work of motor 21 drives the rotation of the first runner 22, to pass through transmission belt 23
Power is transmitted to shaft 25, rotates shaft 25, and then drives 13 relative stator 11 of the blade rotation of rotor 12.Blade 13 can root
According to needing to be arranged, preferably 2~16.The rotation of 12 blade 13 of rotor is driven to project from aperture 113 by driving mechanism 20 a large amount of mixed
Liquid or slurry are closed, 03 bottom of holding furnace is tilted down, these mixed liquors or slurry are sucked back by scattering pump base apertures again, mixed again
It is projected after conjunction, further strengthens the mixed effect to suspension crystal grain.
The present invention is rotated using 12 blade 13 of rotor forms the slurrying that mixed liquor or slurry are drawn into stator 11 by negative pressure
It is sufficiently mixed in chamber 111, and by mixed liquor, perhaps slurry injection makes mixed liquor or slurry return to heat preservation from aperture 113
In furnace 03, then from the constantly sucking of material sucking port 112, iterative cycles are constantly mixed；It is thus higher to the mixing efficiency of suspension crystal grain,
And the slurry that specific gravity official post prepares as caused by temperature accumulates in 03 bottom of holding furnace convenient for acquisition conveying.
In conclusion the present invention is the work with interruption preparation liquid silumin or silumin semi solid slurry
Skill, while silicon liquid liquid and molten aluminum are uniformly mixed to form the liquid silumin coexisted or by the shape that cools
The very thin silumin semi solid slurry of crystal grain coexists, admittedly at liquid for high-pressure casting, extrusion casint, low pressure casting, gravity
Casting uses；The present invention expands the same of its application range in the simply and easily preparation process for giving silumin again
When improve its mechanical performance again.Interruption preparation liquid silumin of the invention simultaneously or silumin semisolid
The equipment of slurry can fast implement the preparation of the high sial of liquid or silumin semi solid slurry, be not only simple in structure, also
It is greatly improved preparation efficiency, reduces preparation cost.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (10)
1. the technique of interruption preparation liquid silumin or silumin semi solid slurry, which is characterized in that with molten aluminum
It is raw material with silicon liquid, wherein molten aluminum accounts for the 22-70% of total amount, and interruption preparation liquid silumin or silumin half are solid
State slurry, includes the following steps,
A: starting pulper；
B: by the preheating temperature of holding furnace to assigned temperature: 800-1430 DEG C；
C: proportionally molten aluminum and silicon liquid are added in holding furnace；
D: the negative pressure that the rotor high speed rotation being set in the pulper in holding furnace is formed, the small molten aluminum of density is above silicon liquid
The slurrying for sucking pulper from the material sucking port of slurrying motor spindle by reflux ceramic tube is intracavitary, and the big silicon liquid of density exists at the same time
Furnace bottom is kept the temperature, directly intracavitary from the slurrying of the material sucking port of slurrying motor spindle sucking pulper, the intracavitary blade high speed of slurrying is revolved
Turn while driving molten aluminum and silicon liquid high-speed rotation, forms the mixed liquor of the two；
E: the intracavitary mixed liquor high-speed rotation of slurrying simultaneously, is shot out and by the material sucking port of bottom by several apertures on stator
Sucking in project to reach again mixes two kinds of liquid adequately, mixes 2-5 minutes, and silicon liquid, molten aluminum is made to roll into a ball phase with smaller liquid
Mutually fusion.
2. the work of interruption preparation liquid silumin according to claim 1 or silumin semi solid slurry
Skill, which is characterized in that it further include following steps,
F: being mixed into the predetermined time, the cooling water ring work being set to below holding furnace, and logical cooling water ring absorbs a large amount of knots
Brilliant latent heat, while the rotor in pulper remains unchanged high speed rotation, had both refined liquid group or had refined the crystalline substance formed due to cooling
Grain；
G: when temperature is dropped to when the solid rate of needs, stopping cooling water ring working, while the slurry made is led to by pressure
It crosses efferent duct and is sent to user's use, wherein the solid rate range is 0.05-0.5.
3. the work of interruption preparation liquid silumin according to claim 2 or silumin semi solid slurry
Skill, which is characterized in that the pressure is generated by pressure pump or baric systerm.
4. the work of interruption preparation liquid silumin according to claim 2 or silumin semi solid slurry
Skill, which is characterized in that further include step H: after the completion of the slurry output in holding furnace, step B-G is repeated.
5. the work of interruption preparation liquid silumin according to claim 1 or silumin semi solid slurry
Skill, which is characterized in that liquid group size is inversely proportional with incorporation time.
6. the equipment of interruption preparation liquid silumin or silumin semi solid slurry, high for being interrupted preparation liquid
Silico-aluminum or silumin semi solid slurry, which is characterized in that including pulper, holding furnace, heat insulation furnace cover, reflux pottery
Porcelain tube, efferent duct and cooling device, the pulper pass through heat insulation furnace cover and protrude into holding furnace, the reflux ceramic tube setting
In in holding furnace, one end is set to above holding furnace, and the other end is arranged against slurrying motor spindle, and the cooling device is set to guarantor
Warm furnace bottom, described efferent duct one end are protruded into holding furnace；
The pulper includes driving mechanism and pulping mechanism, and the pulping mechanism includes stator, rotor and blade, described fixed
Sub- inner hollow, and described device is set to stator interior, and slurrying chamber, the blade are formed between the rotor bottom and stator
It is connect with rotor, intracavitary positioned at slurrying, which, which extend into holding furnace, carries out slurrying, and the driving mechanism drives rotor
It is rotated in stator interior；The stator bottom is equipped with the material sucking port being connected to slurrying cavity, and the stator in the slurrying cavity
Aperture is offered on side wall；The driving mechanism drives rotor rotation, and blade, which rotates, to be formed negative pressure and make mixed liquor or slurry
It is intracavitary to enter slurrying from material sucking port, and injects to stator exterior from aperture.
7. interruption preparation liquid silumin according to claim 6 or silumin semi solid slurry are set
It is standby, which is characterized in that the minimum clearance between the rotor and stator is 1~2000 micron.
8. interruption preparation liquid silumin according to claim 6 or silumin semi solid slurry are set
It is standby, which is characterized in that the axis of aperture axis and the rotor rotation of the aperture is formed down 20~80 ° of angles, and aperture is
0.1-20 millimeters, and the aperture is at least arranged two.
9. interruption preparation liquid silumin according to claim 6 or silumin semi solid slurry are set
It is standby, which is characterized in that the blade has 2~16.
10. interruption preparation liquid silumin according to claim 6 or silumin semi solid slurry are set
It is standby, which is characterized in that close to heat preservation furnace bottom setting, the cooling device is used for the slurrying motor spindle and efferent duct one end
Cooling water ring.
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| CN2018106336654 | 2018-06-20 | ||
| CN201810633665 | 2018-06-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110343917A (en) * | 2019-08-20 | 2019-10-18 | 惠州市华顺祥实业有限公司 | The technique and its equipment of interruption preparation liquid silumin or silumin semi solid slurry |
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| CN109079110B (en) | 2020-09-25 |
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