CN107498010B - A kind of preparation process of light alloy semisolid slurry - Google Patents
A kind of preparation process of light alloy semisolid slurry Download PDFInfo
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- CN107498010B CN107498010B CN201710722450.5A CN201710722450A CN107498010B CN 107498010 B CN107498010 B CN 107498010B CN 201710722450 A CN201710722450 A CN 201710722450A CN 107498010 B CN107498010 B CN 107498010B
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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
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
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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
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/007—Semi-solid pressure die casting
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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
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
- B22D43/004—Retaining slag during pouring molten metal by using filtering means
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
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Abstract
The invention discloses a kind of preparation processes of light alloy semisolid slurry, the technical process is passed through processing gas into slurry while agitating, by the preparation and refining that control arrangement and the stirring and ventilation parameters realization semi solid slurry of venthole, wherein, the revolving speed for controlling mixing plant is not less than 800 rpms, the aperture of the venthole is no more than 2mm, can effectively clear slurry hydrogen and trapped oxide.The invention also discloses a kind of devices suitable for the preparation process, the device can realize continuous slurrying and press casting procedure, high production efficiency, meet industrial production demand, and stock quality obtained is good, die-cast product densification pore-free defect can also carry out T6 heat treatment to improve mechanical performance, meet higher force request.
Description
Technical field
The present invention relates to semisolid pressure casting production field more particularly to a kind of preparation processes of light alloy semisolid slurry.
Background technique
Semi-solid forming technology is the metalworking technology of 21 century frontier nature, is rapidly developed in recent years.Semisolid
Forming technique has broken traditional dendritic solidification mode, keeps alloy structure uniform, reduces internal defect in cast, improves casting
Comprehensive performance.In semi-solid rheological die-casting process, the quality of semi solid slurry is the basis and pass of semi-solid forming technology
Key factor directly determines the quality and cost of semi-solid casting product, is the key that semi-solid casting.
Currently, the preparation process about semi solid slurry has very much, such as mechanical mixing method, electromagnetic stirring method, control solidification
Method, strain activation technology, powder metallurgic method etc., but these methods are only applicable in laboratory research mostly, since technology is limited, no
Practical Die Casting process can be promoted the use of, there are some problems in actual production, for example slurrying cost is excessively high, preparation
Semi solid slurry solid-to-liquid ratio it is difficult to control, globular crystal tissue ratio is small, and solid content is unstable, and preparation efficiency is low etc..
In actual production using more for mechanical mixing method, this method pulping efficiency is high but easily there are volume gas and slurries
The problems such as material pollution, aluminium alloy overturn in pulping device when stirring rod high speed rotation can generate oxidation and air-breathing, and the half of preparation consolidates
State slurry oxide impurity content and air content will increase, and the product obtained using the slurry die casting cannot be consolidated greatly because of air content
Molten processing improves casting strength.Therefore, the higher thin-wall product of industrial production mechanics performance requirement is still difficult, especially have compared with
The structural member of high force request.Study it is a kind of be suitable for industrialized production, and hydrogen content is effectively reduced and oxide is mingled with
Semi solid slurry preparation process be of great significance.
Summary of the invention
Present invention seek to address that problem as described above.The object of the present invention is to provide a kind of light alloy semisolid slurry systems
Standby technique and device.The preparation process effectively removes slurry hydrogen and trapped oxide in pulping process, and stock quality is good, system
The die-cast product densification pore-free defect obtained can carry out T6 heat treatment to improve mechanical performance, meet higher force request, expand
Open up semisolid pressure casting products application range.
According to an aspect of the present invention, the present invention provides a kind of preparation process of light-alloy semisolid, the preparation works
Skill is that mixing plant is put into slurry filling container, liquid alloy is stirred, and be passed through processing gas to it, when aluminium alloy temperature is down to
The light alloy semisolid slurry is made in mushy stage temperature range；
Wherein, the processing gas enters aluminium alloy by the venthole on mixing plant under a predetermined, described to stir
The revolving speed of mixing equipment is not less than 800 rpms, and the aperture of the venthole is no more than 2mm.
Wherein, the air agitation time of the mixing plant is 8~50s.
Wherein, the flow that is passed through of the processing gas is 5~40L/min, and the predetermined pressure is 0.08~0.5MPa.
Wherein, when the aluminium alloy temperature is down within the scope of T~T+T1, the light alloy semisolid slurry is made, wherein T
For light-alloy solidus temperature, T1 is 50 DEG C.
Wherein, the venthole is divided into two groups of arranging systems and is arranged on the stirring rod of mixing plant；Wherein, first group of row
Cloth series includes that 2~5 ventholes are set to stirring rod bottom surface, and second group of arranging system includes that 4~12 ventholes are set to
The periphery of stirring rod.
Wherein, altitude range of the second group of arranging system apart from stirring rod bottom surface is 0~10mm.
Wherein, the aperture of the venthole is 1mm, and the revolving speed of the stirring rod is 1000~1500 rpms.
Wherein, the light-alloy includes aluminium alloy, magnesium alloy, copper alloy or kirsite；The processing gas passes through drying
Processing, and the processing gas includes one of nitrogen, helium, neon, argon gas, Krypton and xenon or a variety of.
Wherein, the temperature of liquid alloy is 30 DEG C of liquidus temperature or more when mixing plant is put into.
Wherein, distance of the stirring rod bottom surface of mixing plant apart from slurry filling container bottom is 10~20mm.
Wherein, the stirring shank diameter of mixing plant and the mass ratio of light-alloy liquid are 4~6mm:1kg.
The present invention also provides a kind of preparation facilities suitable for above-mentioned light alloy semisolid slurry preparation process, the systems
Standby device includes slurry filling container, mixing plant and gas control equipment, and the gas control equipment is connected with the mixing plant；
Wherein, the mixing plant includes stirring rod, and has cavity inside the stirring rod, the gas control equipment with it is described
Cavity is connected, and the cavity is connected with the venthole.
Wherein, the preparation facilities further includes filter screen, and the slurry filling container is die casting machine soup ladle, the filter screen and institute
The slurry end of falling for stating die casting machine soup ladle is connected.
Wherein, the preparation process of the light alloy semisolid slurry is the pulping process for continuous casting production.It is suitble to
The pulping equipment of the technique can satisfy continuous die casting circulation production with die casting machine coordinated operation.
Wherein, the light-alloy is aluminium alloy, preparation process are as follows: mixing plant is put into slurry filling container, stirs liquid
Aluminium alloy, and it is passed through argon gas to it, mixing speed is 1000~1500 rpms, and the arrangement mode of venthole is stirring rod bottom
Face is arranged 3, and apart from 6 provided circumferentially about of bottom surface 5mm, pore size control 1mm, argon pressure is 0.1~0.3MPa, argon gas
Flow is 10~20L/min, and mixing time is 15~40s, and semi solid slurry temperature control obtained is 595~605 DEG C.
Wherein, aluminium alloy semi-solid slurry preparation process is the pulping process for continuous casting production, and liquid aluminium closes
Gold is that slurry filling container directly dips to obtain in holding furnace, and mixing plant is put into slurry filling container in pulping process, is made
After aluminium alloy semi-solid slurry, slurry is poured into melting cup of die casting machine by slurry filling container.
The present invention also provides a kind of preparation facilities suitable for the preparation process, which includes slurry filling container, stirs
Mixing equipment and gas control equipment, the gas control equipment are connected with the mixing plant；Wherein, the mixing plant includes
Stirring rod, and there is cavity inside the stirring rod, the gas control equipment is connected with the cavity, the cavity and institute
Venthole is stated to be connected.
Wherein, the cavity can be completely or partially full of inside the stirring rod.
Wherein, the mixing plant further includes tiny blade, and the tiny blade is arranged on the outside of the stirring rod.
Wherein, the material of the mixing plant is graphite or mould steel.
Wherein, the preparation facilities further includes filter screen, and the slurry filling container is die casting machine soup ladle, the filter screen and institute
The slurry end of falling for stating die casting machine soup ladle is connected.
The preparation process of the light alloy semisolid slurry provided according to the present invention, processing gas are passed into mixing plant,
And it is passed through in aluminium alloy and is acted on by the stirring rod cavity and venthole of mixing plant.The processing gas being passed through passes through stirring
Bar design and operating parameter control, entered in aluminium alloy in the form of tiny bubble, play dehydrogenation, remove the gred, cool and
Stirring action removes the hydrogen in slurry while preparing semi solid slurry, and oxide strip is gone out slurry and is swum to slurry
Feed liquid surface improves the quality of semi solid slurry.
The cardinal principle of refining effect is principle of swimming, and hydrogen partial pressure is zero in the bubble of processing gas, and the hydrogen in slurry is inhaled
It is attached to enter in bubble around gas and exclude therewith, effectively purification slurry.The principle of slurrying effect is the cooling and shearing of bubble
Effect, so that arborescent structure is broken to form nucleus, a large amount of nucleus inhibits growing up for crystal grain, makes the more tiny rounding of crystal grain.?
In industrial production, the emphasis and difficult point that the slurry that quality is good and hydrogen content is low is research is made with keeping stable and uniform.
The preparation of granular crystal semi solid slurry can be achieved by the design of technological parameter and venthole by the present invention, make simultaneously
The control that is passed through of slurry process processing gas can also refined alloy liquid.Wherein the revolving speed of mixing plant is not less than 800 rpms,
The aperture of venthole is no more than 2mm, and the turbulence effect of control process manufacture can be realized the uniform of aluminium alloy in slurry filling container
Refining and slurrying.
Further, the predetermined pressure that control processing gas is passed through is 0.08~0.5MPa, and being passed through flow is 5~40L/
Min avoids slurry from splashing and the problems such as bubble dehydrogenation is ineffective, it can be achieved that adequately stirring action and refining acts on.
Preferably, predetermined pressure is 0.1~0.3MPa, and being passed through flow is 10~20L/min, the more tiny rounding of crystal grain obtained, slurry
Expect that hydrogen content is low.
Further, the design of venthole is directly related with the bubble in slurry filling container, influences semi solid slurry
Solid microstructure pattern and dehydrogenation effect and the purification uniformity.The present invention has found that venthole is preferably divided into two groups by numerous studies
Arranging system is arranged on the stirring rod of mixing plant；Wherein, first group of arranging system is set to including 2~5 ventholes and stirs
Bar bottom surface is mixed, second group of arranging system includes the periphery that 4~12 ventholes are set to stirring rod.Preferably, each arrangement system
The venthole of column is uniformly distributed.On the one hand the tiny bubble being discharged from the venthole carries out cooling stirring to slurry and makees
With, on the other hand using gas swim principle remove aluminium alloy in oxide impurity and hydrogen.
Preferably, the venthole being arranged on the circumferential surface should be arranged and stirring rod lower end, it is preferable that second group of arranging system
The position of setting is at the position range apart from 0~10mm of bottom surface.The arrangement mode of the venthole and above-mentioned mixing speed and logical
Gas control parameter combines, and can be realized optimal stirring turbulent flow effect, is prepared that temperature is stable, hydrogen content is low, oxidation is miscellaneous
Matter lacks the high high quality semi solid slurry of roundness.
Number of air hole excessively equally will affect solid content, the air content etc. of semi solid slurry, it is highly preferred that in the present invention
In the preparation process of offer, the arrangement mode of venthole is that stirring rod bottom surface is arranged 3, apart from provided circumferentially about the 6 of bottom surface 5mm
It is a.
The aperture of venthole is affected for the refining of slurry, aperture be preferably 0.8mm, 1mm, 1.2mm, 1.4mm,
1.6mm and 1.8mm, in some embodiments preferably 1mm, and the revolving speed control of stirring rod is 1000~1500 rpms.
Wherein, the air agitation time of mixing plant is related with the density that dehydrogenation effect obtains slurry, and direct shadow
The production efficiency of continuous slurrying die-casting process is rung, the air agitation time is preferably controlled to 8~50s, in certain embodiments preferably
For 15~40s.
Wherein, stirring shank diameter is related to the light-alloy liquid quality of processing, the stirring shank diameter and light-alloy of mixing plant
The mass ratio of liquid is preferably 4~6mm:1kg.For example, selecting diameter is the stirring of 30mm when light-alloy liquid quality is 5kg
Bar；When light-alloy quality is 8kg, selecting diameter is the stirring rod of 40mm；When light-alloy also quality is 10kg, diameter is selected
For the stirring rod of 40mm；When light-alloy quality is 12kg, selecting diameter is the stirring rod of 53mm.
Method provided by the invention is suitble to the production of the semi solid slurry of aluminium alloy, magnesium alloy, copper alloy or kirsite,
Slurry preparation before, take appropriate alloy to survey its DSC curve, i.e. differential scanning calorimetric curve, survey its phase transition process characteristic point and
Determine the solid, liquid liquidus temperature of the alloy.Pulping process provided by the invention is corresponding with the phase transition process of alloy, and by more
Secondary test proves, good for different alloy universalities, is highly suitable for above-mentioned four kinds of alloys.
Wherein, processing gas is easy to the substance that alloying metal reacts without containing oxygen or water etc. by drying process,
The processing gas include include one of nitrogen, helium, neon, argon gas, Krypton and xenon or a variety of, preferably argon gas.
Preferably, distance of the stirring rod bottom surface of mixing plant apart from slurry filling container bottom is 10~20mm, refines slurrying
Better effect.
According to another aspect of the present invention, a kind of system suitable for above-mentioned light alloy semisolid slurry preparation process is provided
Standby device has the following characteristics that compared with prior art
The device includes slurry filling container, mixing plant and gas control equipment, and gas control equipment is connected with mixing plant,
Specifically, mixing plant includes stirring rod, has cavity inside the stirring rod, and gas control equipment is connected with cavity, cavity and
Venthole is connected, and processing gas is passed through in cavity and then enters in aluminium alloy by gas control equipment, and venthole aperture is set
It is calculated as being no more than 2mm, the arrangement design of venthole need to meet technique requirement.
The device can with die casting machine coordinated operation, mixing plant and slurry filling container independent control, when pulping process starts
Mixing plant is put into slurry filling container, slurrying removes slurry filling container when completing, and can satisfy continuous die casting circulation production, system
It starches high-efficient.
The device also has the following characteristics that the cavity of stirring rod can be completely or partially full of inside stirring rod.Or the dress
The mixing plant set can also include tiny blade, and tiny blade is arranged in the outside of stirring rod, strengthens the stirring of pulping process
Effect.
The device also has the following characteristics that the preparation facilities further includes strainer, and slurry filling container is the matched soup ladle of die casting machine,
The oxide taken out of from semi solid slurry of processing gas is mixed in semi solid slurry surface when slurrying is completed, and soup ladle is by semisolid
Oxide is filtered out by filter screen when slurry pours into melting cup of die casting machine, further purifies stock quality.
Being described below for embodiment is read with reference to the drawings, other property features of the invention and advantage will become clear
It is clear.
Detailed description of the invention
It is incorporated into specification and the attached drawing for constituting part of specification shows the embodiment of the present invention, and with
Principle for explaining the present invention together is described, in the drawings, similar appended drawing reference is used to indicate similar element, under
Attached drawing in the description of face is some embodiments of the present invention, rather than whole embodiments, and those of ordinary skill in the art are come
It says, without creative efforts, other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is shown according to a kind of device signal for preparing semi solid slurry for being suitable for the invention one embodiment
Figure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.It needs
Illustrate, in the absence of conflict, the features in the embodiments and the embodiments of the present application can mutual any combination.
The present invention provides a kind of preparation process of light alloy semisolid slurry, and mixing plant is put into slurry filling container, stirs
Liquid alloy is mixed, and is passed through processing gas to it, mushy stage temperature range is down to when aluminium alloy temperature and the light-alloy half is made
Solid size；
Wherein, the processing gas enters aluminium alloy by the venthole on mixing plant under a predetermined, described to stir
The revolving speed of mixing equipment is not less than 800 rpms, and the aperture of the venthole is no more than 2mm, can refine while slurrying
Semi solid slurry.
The preparation process of the semi solid slurry can be used for continuous casting production, and slurry filling container can be die casting machine soup ladle, system
The die-cast product obtained can carry out T6 heat treatment and improve mechanical performance.
The present invention also provides a kind of pulping device, which includes that slurry filling container, mixing plant and gas control are set
Standby, the gas control equipment is connected with the mixing plant；Wherein, the mixing plant includes stirring rod, and described is stirred
Mixing has cavity inside bar, the gas control equipment is connected with the cavity, and the cavity is connected with the venthole.
Wherein a specific embodiment is as shown in Fig. 1: setting including the control of slurry filling container 1, mixing plant 2 and gas
Standby, gas control equipment is connected with mixing plant 2, and the batch turning end of slurry filling container is equipped with strainer 11；Wherein, mixing plant 2 wraps
Stirring rod 4 is included, and there is cavity inside stirring rod, the air inlet 3 of gas control equipment is connected with the cavity of stirring rod 4, empty
Chamber is connected with venthole 43, and processing gas is entered in slurry in the form of bubble 6 by venthole 43.Venthole is divided into two groups,
It is arranged on stirring rod bottom surface 42 and stirring rod periphery 41, the aperture of venthole is no more than 2mm.The device can and die casting machine
Coordinated operation, slurry filling container 1 are die casting machine soup ladle, and liquid light-alloy 5 can be directly dipped in holding furnace, after the completion of slurrying, pressure
Casting machine soup ladle pours into slurry into die-casting melting cup.
Underneath with the pulping process is described in detail by way of embodiment:
Embodiment 1
In conjunction with Fig. 1, embodiment 1 dips the aluminium alloy of 5kg using slurry filling container using the pulping device for being used for continuous casting
Mixing plant is put into slurry filling container by liquid, the aluminum alloy melt of 670 DEG C of stirring, and is passed through argon gas to it, controls stirring rod revolving speed
It is 900 rpms, the pressure that is passed through of argon gas is 0.15MPa, and flow 13L/min, the air agitation time is 8s, and temperature is made
For 615 DEG C of semi solid slurry.Wherein, the diameter of stirring rod is 30mm, and stirring rod bottom surface is distributed 5 ventholes, distance stirring
10 ventholes of circumference EDS maps of bar bottom surface 8mm, the aperture of venthole are 0.8mm.
Embodiment 2
In conjunction with Fig. 1, embodiment 2 is closed using the pulping device for being used for continuous casting using the aluminium that slurry filling container dips 12kg
Golden liquid, mixing plant is put into slurry filling container, the aluminum alloy melt of 670 DEG C of stirring, and is passed through argon gas to it, and control stirring rod turns
Speed is 1000 rpms, and the pressure that is passed through of argon gas is 0.15MPa, and flow 13L/min, the air agitation time is 10s, is made
The semi solid slurry that temperature is 610 DEG C.Wherein, the diameter of stirring rod is 53mm, and stirring rod bottom surface is distributed 4 ventholes, distance
8 ventholes of circumference EDS maps of stirring rod bottom surface 6mm, the aperture of venthole are 1.2mm.
Embodiment 3~8
The preparation process of 3~embodiment of embodiment, 8 reference implementation example 1,2, the aluminum alloy melt quality of preparation is 8kg, is stirred
Mixing shank diameter is 40mm, and venthole aperture is 1mm, and stirring rod bottom surface is distributed 3, the circumference apart from stirring rod bottom surface 5mm
EDS maps 6, but the operating parameter of each embodiment is varied, while being surveyed for the density and hydrogen content of each embodiment
Fixed, specific embodiment situation is as shown in table 1:
The different embodiment preparation technology parameters of table 1 and stock quality list
Comparative example
Beneficial effect in order to further illustrate the present invention, selection mechanical mixing method relatively conventional at present prepare semisolid
Slurry measures the 2.26g/cm of semi solid slurry3。
Test case
By semi solid slurry that above-described embodiment and comparative example are prepared by vacuumizing, the die-casting processes such as directional solidification
Prepare semisolid pressure casting part, sample block is high-densit sample block after discovery embodiment vacuum solidification, and comparative example sample block then exist it is more
Gas hole defect.
Semisolid pressure casting product made from embodiment can also carry out T6 heat treatment, i.e. solution treatment and ageing treatment, at heat
Product tensile strength after reason is all larger than 280MPa, and hardness is in HB100 or more.
From above-mentioned test case it will be seen that using semi solid slurry quality made from preparation process provided by the invention
More preferably, which is passed through the arrangement mode of pressure and flow and venthole by control speed of agitator, mixing time, gas,
Stablize the semi solid slurry temperature of each circulation preparation, the high quality slurry that density is certain, air content is low, with the prior art
Compared to apparent beneficial effect.
Also, the preparation process of the semi solid slurry can be used for continuous casting production, and the semi-solid products of production can be into
Row T6 heat treatment improves mechanical performance, can be used as the use of high-strength structure part.
Descriptions above can combine implementation individually or in various ways, and these variants all exist
Within protection scope of the present invention.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (1)
1. a kind of preparation process of light alloy semisolid slurry, which is characterized in that mixing plant is put into slurry filling container, is stirred
Liquid alloy, and it is passed through processing gas to it, mushy stage temperature range is down to when aluminium alloy temperature, and the light-alloy half is made admittedly
State slurry；
Wherein, the processing gas enters aluminium alloy, the venthole by the venthole on mixing plant under a predetermined
Aperture be 1mm, the revolving speed of the stirring rod of the mixing plant is 1000~1500 rpms；
The air agitation time of the mixing plant is 8~50s；
The flow that is passed through of the processing gas is 5~40L/min, and the predetermined pressure is 0.08~0.5MPa；
When the aluminium alloy temperature is down within the scope of T~T+T1, the light alloy semisolid slurry is made, wherein T is light-alloy
Solidus temperature, T1 are 50 DEG C；
The venthole is divided into two groups of arranging systems and is arranged on the stirring rod of mixing plant；Wherein, first group of arranging system packet
It includes 2~5 ventholes and is set to stirring rod bottom surface, second group of arranging system includes that 4~12 ventholes are set to stirring rod
Periphery；
Altitude range of the second group of arranging system apart from stirring rod bottom surface is 0~10mm；
The light-alloy includes aluminium alloy, magnesium alloy, copper alloy or kirsite；The processing gas, which is passed through, to be dried, and
The processing gas includes one of nitrogen, helium, neon, argon gas, Krypton and xenon or a variety of；
The preparation facilities of the light alloy semisolid slurry preparation process, the preparation facilities include slurry filling container, stirring set
Standby and gas control equipment, the gas control equipment are connected with the mixing plant；Wherein, the mixing plant includes stirring
Bar, and there is cavity inside the stirring rod, the gas control equipment is connected with the cavity, and the cavity leads to described
Stomata is connected；
The preparation facilities further includes filter screen, and the slurry filling container is die casting machine soup ladle, the filter screen and the die casting machine
The slurry end of falling of soup ladle is connected.
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| CN109732052B (en) | 2018-12-14 | 2020-09-22 | 珠海市润星泰电器有限公司 | Die casting method of filtering cavity |
| CN111375739B (en) * | 2019-12-11 | 2021-11-09 | 金榀精密工业(苏州)有限公司 | Efficient controllable semi-solid die casting process |
| US20220048105A1 (en) * | 2020-08-13 | 2022-02-17 | Qingyou Han | Acoustic rotary liquid processor |
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