CN104550888A - Method capable of continuously producing semisolid metal slurry - Google Patents

Method capable of continuously producing semisolid metal slurry Download PDF

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Publication number
CN104550888A
CN104550888A CN201510046803.5A CN201510046803A CN104550888A CN 104550888 A CN104550888 A CN 104550888A CN 201510046803 A CN201510046803 A CN 201510046803A CN 104550888 A CN104550888 A CN 104550888A
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solid
semi
metal slurry
slurry
state metal
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CN201510046803.5A
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CN104550888B (en
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林荣英
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Jiangsu Rui metal Polytron Technologies Inc
Jiangsu Ruiyang Precision Industry Co., Ltd.
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林荣英
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00Treatment of fused masses in the ladle or the supply runners before casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00Equipment for conveying molten metal into beds or moulds
    • B22D35/06Heating or cooling equipment

Abstract

The invention discloses a method capable of continuously producing semisolid metal slurry. The method includes the following steps: providing the semisolid metal slurry (1) in a container (2), taking away part of the semisolid metal slurry (3) from the container (2) for semisolid processing, cooling the rest semisolid metal slurry (4) in the container to increase solid percentage of the same, adding molten metal (5) into the container (2) to form new semisolid metal slurry (1), and cooling the semisolid metal slurry (1) to increase solid percentage of the same; repeating the above steps to achieve the objective of continuously producing the semisolid metal slurry. The method has the advantages that the technique process is quite simple and easy in control; semisolid slurry preparation is extremely low in production cost, and the method is easy in realizing large-scale industrialized application.

Description

A kind of can the method for continuous seepage semi-solid metal slurrg
Technical field
The invention belongs to the semi-solid forming technical field of metal, be specifically related to a kind of can the method for continuous seepage semi-solid-state metal slurry.
Background technology
As everyone knows, the shaping part of the semi-solid metal slurrg corresponding part shaping relative to ordinary liquid is used to have many advantages, as less defect, better mechanical performance etc.; Therefore, Semi-solid Metals Forming Techniques is regarded as epoch-making intermetallic composite coating new technology with its many superiority.In recent years, the commercial Application of Semi-solid Metals Forming Techniques obtains remarkable progress; At present, prepare the method with the semi-solid-state metal slurry of globular crystal structure to mainly contain: mechanical mixing method, electromagnetic stirring method, ultrasonic wave paddling process etc.The technological process relative complex of these methods, cause production cost relatively high, to such an extent as to up to the present, the semi-solid forming technology of metal also obtain industrial applications in very large scope.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of can the method for continuous seepage semi-solid-state metal slurry.The method overcome the shortcoming that technological process is more complicated, production cost is higher existed in existing semi-solid metal slurry body preparation method, be easy to operation, production cost is extremely low, is easy to realize large-scale commercial application.
For achieving the above object, the present invention adopts following technical scheme:
Can the method for continuous seepage semi-solid metal slurrg, comprise the following steps:
A () provides semi-solid-state metal slurry (1) in a container (2);
D () takes the semi-solid-state metal slurry (3) of part away for semi-solid processing (as semisolid pressure casting, semisolid forging and semi-solid state extrusion etc.) from container (2);
C semi-solid-state metal slurry (4) remaining in container (2) cools to increase its solids ratio by ();
D () adds motlten metal (5) to form new semi-solid-state metal slurry (1) in container (2);
E the new semi-solid-state metal slurry (1) formed of () cooling is to increase its solids ratio.
In described step (c), semi-solid-state metal slurry (4) is frozen into solid completely after cooling.
In described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is at least 1 wt%.
In described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is at least 10wt%.
In described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is at least 20wt%.
In described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is no more than 40wt%.
In described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is no more than 50wt%.
In described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is no more than 60wt%.
In actual production, above technological process can constantly be repeated, to meet quantity-produced needs; The i.e. new semi-solid-state metal slurry (1) that formed of a part but also can be removed for semi-solid processing, and remaining semi-solid-state metal slurry can be added into a certain amount of motlten metal (5) to form more semi-solid-state metal slurry (1).
According to one embodiment of present invention, after certain cooling for a long time, in container (2), remaining semi-solid-state metal slurry (4) is frozen into solid completely.
According to another embodiment of the invention, the time cooled semi-solid-state metal slurry (4) remaining in container (2) can be zero; In this case, the solids content of in general described remaining semi-solid-state metal slurry (4) is higher, so do not need further cooling to increase its solids ratio.
According to another embodiment of the invention, the time cooled the semi-solid-state metal slurry (1) of described new formation can be zero; In this case, the solids content of the semi-solid-state metal slurry (1) of described new formation has reached the requirement of semi-solid processing, so do not need further cooling to increase its solids ratio.
In a word, during actual production, the length of cool time carries out selecting according to the height of the solids content in semi-solid-state metal slurry and the needs of reality, solids content in semi-solid-state metal slurry is high, then correspondingly cool time is shorter, solids content in semi-solid-state metal slurry is low, then correspondingly cool time is longer.
According to a preferred embodiment of the present invention, the new semi-solid-state metal slurry (1) formed is at least 1wt% through cooled solids content, is preferably at least 10wt%, is more preferably at least 20wt%; Its key is, the selection of the solids content of the new semi-solid-state metal slurry (1) formed, should guarantee its generation suppressing metal Dendritic TiC structure and network when further cooling and solidifying.
According to a further advantageous embodiment of the invention, the new semi-solid-state metal slurry (1) formed solids content after cooling is no more than 60wt%, preferably more than 50wt%, more preferably no more than 40wt%; Higher solids content may make slurry be not easy to carry out further semi-solid processing.
It is pointed out that the solids content when the new semi-solid-state metal slurry (1) formed is less than 10wt%, its viscosity is relatively low; The agitating procedure (as mechanical agitation, electromagnetic agitation etc.) added can not be needed to reach the object of slurry homogenising.But when the solids content of the described semi-solid-state metal slurry (1) formed is greater than 20wt%, its viscosity is relatively high, the general agitating procedure (as mechanical agitation, electromagnetic agitation etc.) added that needs is to reach the object of slurry homogenising.
Beneficial effect of the present invention is:
1) technological process of the present invention is very simple, and is easy to control;
2) apply the pulping process that the present invention discloses, the production cost of slurry is extremely low;
3) the present invention is easy to realize large-scale commercial application.
Accompanying drawing explanation
Fig. 1 is process schematic representation of the present invention;
Fig. 2 is the microphoto of the metal composites of an example of the present invention, comprises the secondary solid phase formed in spherical primary solids phase and cold quenching process.
Detailed description of the invention
The present invention's the following example further illustrates the present invention, but protection scope of the present invention is not limited to the following example.
Fig. 1 shows four independent processes in a preferred embodiment of the present invention.Step 1 shows a container (2), and the semi-solid-state metal slurry (1) of constant weight is housed in container (2).Step 2 shows the container (2) in step 1, and the semi-solid-state metal slurry (1) in container (2) has been removed a part and has put into another container (6); Semi-solid-state metal slurry (3) in container (6) will be used to further process use, as semisolid pressure casting, also remain some semi-solid-state metal slurries (4) in container (2).Step 3 shows semi-solid-state metal slurry (4) remaining in step 2, and through certain cooling for a long time, the solids ratio of remaining semi-solid-state metal slurry (4) increases; In some cases, semi-solid-state metal slurry (4) can be cooled sufficiently long time to such an extent as to be frozen into solid completely.Step 4 illustrates another container (7), and the metal (5) of melting is housed in container (7); A certain amount of motlten metal (5) has been added in container (2), and and semi-solid-state metal slurry (4) in step 3 mix and define new semi-solid-state metal slurry (1).If desired, further cooling can be carried out to increase its solids ratio (non-illustrate) to the new semi-solid-state metal slurry (1) formed.
The solids ratio of semi-solid-state metal slurry (1) is by the weight of added motlten metal (5) and temperature, to the weight of remaining semi-solid-state metal slurry (4), to the cool time of remaining semi-solid-state metal slurry (4), and the parameters such as cool time of the new semi-solid-state metal slurry (1) formed are regulated control.In many cases, it is desirable that the solids ratio of semi-solid-state metal slurry (1) is controlled between 10-30%; Because in this ratio ranges, semi-solid-state metal slurry (1) has had enough solids contents to prevent the generation of Dendritic TiC, and simultaneously semi-solid-state metal slurry (1) still has enough mobility from container (2), pours out (non-illustrate).
In production application, above technological process can constantly be repeated, to meet quantity-produced needs; The i.e. new semi-solid-state metal slurry (1) that formed of a part but also can be removed for semi-solid processing, and remaining semi-solid-state metal slurry can be added into a certain amount of motlten metal (5) to form more semi-solid-state metal slurry (1).
Embodiment 1
Below the production method of Al-7wt%Si aluminium alloy semi-solid slurry and device are illustrated.
First an internal diameter be about 130 millimeters, wall thickness is about 16 millimeters, highly for " clay-graphite " crucible heating of about 180 millimeters is to about 620 DEG C; Then pour the melting Al-7wt%Si aluminium alloy of about 5000 grams into toward this crucible, the temperature of the aluminium alloy at this moment in crucible is 625 DEG C (liquidus temperature of this Al-7wt%Si aluminium alloy is about 616 DEG C, and solidus temperature is about 572 DEG C); Then allow the aluminium alloy in crucible naturally cool, carry out mechanical agitation simultaneously to this aluminium alloy, stop stirring when the temperature of this alloy drops to 610 DEG C, the aluminium alloy at this moment in crucible has become semisolid slurry; Then from crucible, pour out the semisolid slurry of about 3000 grams in order to his use, at this moment in crucible, be also left the semisolid slurry of about 2000 grams; Then allow semisolid slurry remaining in crucible naturally cool 45 seconds, the temperature of the semisolid slurry at this moment in crucible drops to about 600 DEG C; Then in crucible, add the melting Al-7wt%Si aluminium alloy of about 3000 grams about 630 DEG C, the temperature of the aluminium alloy at this moment in crucible is about 612 DEG C, and the semisolid slurry of namely new about 5000 grams is formed; Then allow the semisolid slurry of the new formation in crucible naturally cool and carry out mechanical agitation about 10 seconds simultaneously, the temperature of about 5000 grams of semisolid slurries at this moment in crucible drops to about 610 DEG C.A small amount of semisolid slurry is by taking-up from crucible and at cold quenching-in water; The microstructure obtained as shown in Figure 2; As can be seen from Figure 2, use the semisolid slurry that the method disclosed by the present invention is produced, its primary solids is globular crystal structure mutually.In actual production, the method disclosed by above the present invention can constantly be reused, to reach quantity-produced object.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.

Claims (8)

1. can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: comprise the following steps:
A () provides semi-solid-state metal slurry (1) in a container (2);
B () takes the semi-solid-state metal slurry (3) of part away for semi-solid processing from container (2);
C semi-solid-state metal slurry (4) remaining in container (2) cools to increase its solids ratio by ();
D () adds motlten metal (5) to form new semi-solid-state metal slurry (1) in container (2);
E semi-solid-state metal slurry (1) that () cooling step (d) is newly formed is to increase its solids ratio.
2. according to claim 1 can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: in described step (c), semi-solid-state metal slurry (4) is frozen into solid completely after cooling.
3. according to claim 1 can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: in described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is at least 1 wt%.
4. according to claim 1 can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: in described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is at least 10 wt%.
5. according to claim 1 can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: in described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is at least 20 wt%.
6. according to claim 1 can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: in described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is no more than 40 wt%.
7. according to claim 1 can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: in described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is no more than 50 wt%.
8. according to claim 1 can the method for continuous seepage semi-solid metal slurrg, it is characterized in that: in described step (e), the new semi-solid-state metal slurry (1) formed solids content after cooling is no more than 60 wt%.
CN201510046803.5A 2015-01-30 2015-01-30 A kind of method that can produce semi-solid metal slurrg continuously Active CN104550888B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104841896A (en) * 2015-05-28 2015-08-19 林荣英 Method for producing metal semisolid slurry
CN105537552A (en) * 2016-02-02 2016-05-04 曹海平 Method and device for producing semi-solid slurry
WO2016119579A1 (en) * 2015-01-30 2016-08-04 林荣英 Method for continuously producing metal semi-solid slurry
CN112846127A (en) * 2020-12-30 2021-05-28 杨杰 Die casting method of 5G base station radiating shell and semi-solid die casting method applied by die casting method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04124232A (en) * 1990-09-12 1992-04-24 Leotec:Kk Method for starting continuous type half solidified metal producing apparatus
EP0745694A1 (en) * 1995-05-29 1996-12-04 Ube Industries, Ltd. Method and apparatus for shaping semisolid metals
CN101098974A (en) * 2004-12-10 2008-01-02 M·韦森 A method of and a device for producing a liquid-solid metal composition
CN102266914A (en) * 2011-08-08 2011-12-07 昆明理工大学 Method for preparing semisolid alloy slurry
CN104084545A (en) * 2014-07-25 2014-10-08 无锡职业技术学院 Metamorphic method for casting mixed liquid of Mg-Al alloy liquid melt and semi-solid melt

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104550888B (en) * 2015-01-30 2016-08-31 林荣英 A kind of method that can produce semi-solid metal slurrg continuously

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04124232A (en) * 1990-09-12 1992-04-24 Leotec:Kk Method for starting continuous type half solidified metal producing apparatus
EP0745694A1 (en) * 1995-05-29 1996-12-04 Ube Industries, Ltd. Method and apparatus for shaping semisolid metals
CN101098974A (en) * 2004-12-10 2008-01-02 M·韦森 A method of and a device for producing a liquid-solid metal composition
CN102266914A (en) * 2011-08-08 2011-12-07 昆明理工大学 Method for preparing semisolid alloy slurry
CN104084545A (en) * 2014-07-25 2014-10-08 无锡职业技术学院 Metamorphic method for casting mixed liquid of Mg-Al alloy liquid melt and semi-solid melt

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016119579A1 (en) * 2015-01-30 2016-08-04 林荣英 Method for continuously producing metal semi-solid slurry
CN104841896A (en) * 2015-05-28 2015-08-19 林荣英 Method for producing metal semisolid slurry
WO2016188125A1 (en) * 2015-05-28 2016-12-01 林荣英 Method of producing semi-solid metal slurry
CN105537552A (en) * 2016-02-02 2016-05-04 曹海平 Method and device for producing semi-solid slurry
CN112846127A (en) * 2020-12-30 2021-05-28 杨杰 Die casting method of 5G base station radiating shell and semi-solid die casting method applied by die casting method

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Effective date of registration: 20161116

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Patentee after: Jiangsu Ruiyang Precision Industry Co., Ltd.

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Patentee before: Lin Rongying

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Address before: 223600 Suqian City Economic Development Zone in Jiangsu province in Shuyang County, New Road 205 East Road on the north side of Cixi

Patentee before: Jiangsu Ruiyang Precision Industry Co., Ltd.