CN104550888B - A kind of method that can produce semi-solid metal slurrg continuously - Google Patents
A kind of method that can produce semi-solid metal slurrg continuously Download PDFInfo
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- CN104550888B CN104550888B CN201510046803.5A CN201510046803A CN104550888B CN 104550888 B CN104550888 B CN 104550888B CN 201510046803 A CN201510046803 A CN 201510046803A CN 104550888 B CN104550888 B CN 104550888B
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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
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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
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/06—Heating or cooling equipment
Abstract
The invention discloses a kind of method that can produce semi-solid-state metal slurry continuously, comprise the following steps: provide semi-solid-state metal slurry (1) in a container (2), the semi-solid-state metal slurry (3) of part is taken away for semi-solid processing from container (2), in cooling container (2), remaining semi-solid-state metal slurry (4) is to increase its solids ratio, in container (2), addition motlten metal (5) is to form new semi-solid-state metal slurry (1), and the semi-solid-state metal slurry (1) described in cooling is to increase its solids ratio；Repeat above step to reach to produce continuously the purpose of semi-solid-state metal slurry.The invention has the beneficial effects as follows: the technological process of the present invention is the simplest and easily controllable；The method that application the invention discloses, the production cost of semi-solid slurrying is extremely low, it is easy to accomplish large-scale commercial application.
Description
Technical field
The invention belongs to the semi-solid forming technical field of metal, be specifically related to a kind of method that can produce semi-solid-state metal slurry continuously.
Background technology
It is known that use the part of semi-solid metal slurrg molding to have the advantage of many relative to the corresponding part of ordinary liquid molding, such as less defect, more preferably mechanical performance etc.；Therefore, Semi-solid Metals Forming Techniques is considered epoch-making intermetallic composite coating new technology with its many superiority.In recent years, the commercial Application of Semi-solid Metals Forming Techniques is achieved with remarkable progress；At present, the method for the semi-solid-state metal slurry that preparation has globular crystal structure mainly has: mechanical mixing method, electromagnetic stirring method, ultrasonic stirring method etc..The technological process of these methods is relative complex, cause production cost of a relatively high, to such an extent as to up to the present, the semi-solid forming technology of metal does not also obtain industrial applications in the biggest scope.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of method that can produce semi-solid-state metal slurry continuously.The method overcoming the shortcoming that technological process is more complicated, production cost is higher present in existing semi-solid metal slurry body manufacture method, it is easy to operation, production cost is extremely low, it is easy to accomplish large-scale commercial application.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of method that can produce semi-solid metal slurrg continuously, comprises 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 (such as semisolid pressure casting, semisolid forging and semi-solid state extrusion etc.) from container (2)；
C remaining semi-solid-state metal slurry (4) in container (2) is cooled down 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 is newly formed is to increase its solids ratio.
In described step (c), semi-solid-state metal slurry (4) has been completely solidified into solid the most.
Semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is at least 1 wt%.
Semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is at least 10wt%.
Semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is at least 20wt%.
Semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is less than 40wt%.
Semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is less than 50wt%.
Semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is less than 60wt%.
In actual production, above technological process can constantly be repeated, to meet quantity-produced needs；The semi-solid-state metal slurry (1) that i.e. a part is newly formed again 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) has been completely solidified into solid.
According to another embodiment of the invention, the time cooled down 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 the highest, so need not further cool down to increase its solids ratio.
According to another embodiment of the invention, the time cooled down the described semi-solid-state metal slurry (1) being newly formed can be zero；In this case, the solids content of the described semi-solid-state metal slurry (1) being newly formed has reached the requirement of semi-solid processing, so need not further cool down to increase its solids ratio.
In a word, during actual production, the length of cool time is height according to the solids content in semi-solid-state metal slurry and actual needs and carries out selecting, solids content in semi-solid-state metal slurry is high, the most correspondingly cool time is shorter, solids content in semi-solid-state metal slurry is low, and the most correspondingly cool time is longer.
According to a preferred embodiment of the present invention, the semi-solid-state metal slurry (1) being newly formed solids content after cooling is at least 1wt%, more preferably at least 10wt%, more preferably at least 20wt%；It is it is critical that the selection of solids content of the semi-solid-state metal slurry (1) being newly formed, it should be ensured that it is suppression metal Dendritic TiC structure and the generation of network when further cooling and solidification.
According to a further advantageous embodiment of the invention, semi-solid-state metal slurry (1) solids content after cooling being newly formed is less 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 when the solids content of the semi-solid-state metal slurry (1) being newly formed is less than 10wt%, and its viscosity is relatively low；The agitating procedure (such as mechanical agitation, electromagnetic agitation etc.) that can need not add is to reach the purpose of slurry homogenization.But, when the solids content of the described semi-solid-state metal slurry (1) formed is more than 20wt%, and its viscosity is of a relatively high, it is generally required to additional agitating procedure (such as mechanical agitation, electromagnetic agitation etc.) is to reach the purpose of slurry homogenization.
The beneficial effects of the present invention is:
1) technological process of the present invention is very simple, and easily controllable；
2) applying the pulping process that the invention discloses, the production cost of slurry is extremely low；
3) present invention is easily achieved large-scale commercial application.
Accompanying drawing explanation
Fig. 1 is the process schematic representation of the present invention；
Fig. 2 is the microphotograph of the metal composites of an example of the present invention, including the secondary solid phase formed during spherical primary solids phase and cold quenching.
Detailed description of the invention
Present invention 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), equipped with the semi-solid-state metal slurry (1) of constant weight 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 in another container (6)；Semi-solid-state metal slurry (3) in container (6) will be used for further processing use, as there remains some semi-solid-state metal slurries (4) in semisolid pressure casting, 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) has increased；In some cases, semi-solid-state metal slurry (4) can be cooled the sufficiently long time to such an extent as to be completely solidified into solid.Step 4 illustrates another container (7), equipped with melted metal (5) in container (7)；A certain amount of motlten metal (5) has been added in container (2), and and step 3 in semi-solid-state metal slurry (4) mix and define new semi-solid-state metal slurry (1).If desired, the semi-solid-state metal slurry (1) being newly formed can further cool down to increase its solids ratio (non-illustrate).
The solids ratio of semi-solid-state metal slurry (1) can pass through the weight to the motlten metal (5) added and temperature, weight to remaining semi-solid-state metal slurry (4), cool time to remaining semi-solid-state metal slurry (4), and be adjusted controlling to parameters such as cool times of the semi-solid-state metal slurry (1) being newly formed.In many cases it is desirable to, 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 semi-solid-state metal slurry (1) still has enough mobility and pours out (non-illustrate) from container (2) simultaneously.
In production application, above technological process can constantly be repeated, to meet quantity-produced needs；The semi-solid-state metal slurry (1) that i.e. a part is newly formed again 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
Production method and device to Al-7wt%Si aluminium alloy semi-solid slurry are illustrated below.
First an internal diameter is about 130 millimeters, wall thickness is about 16 millimeters, height is about " clay-graphite " crucible of 180 millimeters and is heated to about 620 DEG C；Then pour the melted Al-7wt%Si aluminium alloy of about 5000 grams into toward this crucible, at this moment the temperature of the aluminium alloy 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 allowing the aluminium alloy natural cooling in crucible, this aluminium alloy is carried out mechanical agitation simultaneously, stop stirring when the temperature of this alloy drops to 610 DEG C, at this moment the aluminium alloy in crucible has become semisolid slurry；Then from crucible, pour out the semisolid slurry of about 3000 grams in case his use, at this moment crucible there remains the semisolid slurry of about 2000 grams；Then allowing semisolid slurry natural cooling remaining in crucible 45 seconds, at this moment the temperature of the semisolid slurry in crucible drops to about 600 DEG C；Then toward the melted Al-7wt%Si aluminium alloy of add about 3000 grams in crucible about 630 DEG C, at this moment the temperature of the aluminium alloy in crucible is about 612 DEG C, and the semisolid slurry of the newest about 5000 grams has been formed；Then allowing the semisolid slurry natural cooling being newly formed in crucible simultaneously carry out mechanical agitation about 10 seconds, at this moment the temperature of about 5000 grams of semisolid slurries in crucible drops to about 610 DEG C.A small amount of semisolid slurry is taken out and at cold quenching-in water from crucible；Obtained microstructure is as shown in Figure 2；Figure it is seen that use the semisolid slurry that the method that disclosed herein produces, its primary solids is globular crystal structure mutually.In actual production, the above method that disclosed herein can be repeated continuously use, to reach quantity-produced purpose.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.
Claims (8)
1. the method that can produce semi-solid metal slurrg continuously, it is characterised 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 remaining semi-solid-state metal slurry (4) in container (2) is cooled down 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.
The method that can produce semi-solid metal slurrg continuously the most according to claim 1, it is characterised in that: in described step (c), semi-solid-state metal slurry (4) has been completely solidified into solid the most.
The method that can produce semi-solid metal slurrg continuously the most according to claim 1, it is characterised in that: semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is at least 1 wt%.
The method that can produce semi-solid metal slurrg continuously the most according to claim 1, it is characterised in that: semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is at least 10 wt%.
The method that can produce semi-solid metal slurrg continuously the most according to claim 1, it is characterised in that: semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is at least 20 wt%.
The method that can produce semi-solid metal slurrg continuously the most according to claim 1, it is characterised in that: semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is less than 40 wt%.
The method that can produce semi-solid metal slurrg continuously the most according to claim 1, it is characterised in that: semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is less than 50 wt%.
The method that can produce semi-solid metal slurrg continuously the most according to claim 1, it is characterised in that: semi-solid-state metal slurry (1) solids content after cooling being newly formed in described step (e) is less than 60 wt%.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510046803.5A CN104550888B (en) | 2015-01-30 | 2015-01-30 | A kind of method that can produce semi-solid metal slurrg continuously |
| PCT/CN2016/070184 WO2016119579A1 (en) | 2015-01-30 | 2016-01-05 | Method for continuously producing metal semi-solid slurry |
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| CN201510046803.5A CN104550888B (en) | 2015-01-30 | 2015-01-30 | A kind of method that can produce semi-solid metal slurrg continuously |
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| CN104550888A CN104550888A (en) | 2015-04-29 |
| CN104550888B true CN104550888B (en) | 2016-08-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104550888B (en) * | 2015-01-30 | 2016-08-31 | 林荣英 | A kind of method that can produce semi-solid metal slurrg continuously |
| 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 |
| CN112846127B (en) * | 2020-12-30 | 2022-07-12 | 福建省金瑞高科有限公司 | Die casting method of 5G base station radiating shell and semi-solid die casting method applied by die casting method |
Citations (5)
| 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)
| 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 |
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- 2015-01-30 CN CN201510046803.5A patent/CN104550888B/en active Active
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- 2016-01-05 WO PCT/CN2016/070184 patent/WO2016119579A1/en active Application Filing
Patent Citations (5)
| 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 |
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| WO2016119579A1 (en) | 2016-08-04 |
| CN104550888A (en) | 2015-04-29 |
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Effective date of registration: 20161116 Address after: 223600 Suqian City Economic Development Zone in Jiangsu province in Shuyang County, New Road 205 East Road on the north side of Cixi Patentee after: Jiangsu Ruiyang Precision Industry Co., Ltd. Address before: 364207, Longyan County, Fujian City, Shanghang Province Lake Village ancient village Patentee before: Lin Rongying |
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Effective date of registration: 20170424 Address after: 223600 Suqian City Economic Development Zone in Jiangsu province Shuyang County Road 205 East Road on the south side of the new grant Co-patentee after: Jiangsu Rui metal Polytron Technologies Inc Patentee after: Jiangsu Ruiyang Precision Industry Co., Ltd. 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. |