CN113477126A - Stirring device for particle reinforced aluminum matrix composite - Google Patents
Stirring device for particle reinforced aluminum matrix composite Download PDFInfo
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- CN113477126A CN113477126A CN202110873292.XA CN202110873292A CN113477126A CN 113477126 A CN113477126 A CN 113477126A CN 202110873292 A CN202110873292 A CN 202110873292A CN 113477126 A CN113477126 A CN 113477126A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
- C22C32/0063—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides based on SiC
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention relates to a stirring device for a particle reinforced aluminum matrix composite, which comprises a stirring container, a stirring rod and a scraper blade, wherein the stirring rod is positioned in the middle of the stirring container; the stirring rod is provided with a plurality of layers of blade layers, wherein the blade layers comprise a spiral blade layer and a prismatic blade layer, the prismatic blade layer comprises a plurality of prismatic blades which are arranged along the circumferential direction of the stirring rod, and the range of at least one internal angle of a cross section polygon of each prismatic blade is 30-60 degrees. This kind of agitating unit can homogeneous mixing aluminum matrix and reinforcing phase, and can prevent to add reinforcing phase granule after, the fuse-element adhesion of stirred vessel inner wall and the absorption of reinforcing phase break the granule reunion.
Description
Technical Field
The invention relates to the technical field of aluminum material processing, in particular to a stirring device for a particle-reinforced aluminum-based composite material.
Background
Aluminum matrix composites have become a hot spot in recent years due to their excellent properties such as high specific strength, specific stiffness, wear resistance, low thermal expansion coefficient, and good thermal conductivity and dimensional stability. The particle reinforced aluminum matrix composite represented by SiC can optimize the performance of the low-cost aluminum matrix composite through the content, the size and the like of particles, and has been a breakthrough in the fields of aerospace, electronic packaging, automobile manufacturing, high-speed trains and the like.
The main processes for preparing the aluminum matrix composite material at present comprise stirring casting, powder metallurgy, pressure infiltration and the like. The stirring casting method is characterized in that matrix aluminum is melted, eddy current is formed through mechanical or electromagnetic stirring, added reinforcing phase particles are rolled into the molten aluminum under the action of the eddy current to obtain uniformly distributed melt, and the melt is cast under certain conditions to obtain the composite material. Compared with powder metallurgy and pressure infiltration, the method has the advantages of simple equipment and process, high production efficiency, low cost and capability of producing components with complex shapes in large scale, and is one of the most potential processes for realizing industrial large-scale production. In the stirring casting process, the dispersion uniformity degree of the reinforcing phase in the aluminum matrix can directly influence the performance of the prepared composite material, so that the Chinese utility model patent with the publication number of CN212585512U in the prior art, namely an aluminum alloy melt stirring paddle, helps to uniformly mix the composite material; however, the mixing effect of the stirring paddle is still poor, and when the reinforcing phase particles are added, melt adhesion and reinforcing phase adsorption easily occur on the inner wall of the crucible, so that the uniform stirring and the sufficient mixing of the components are challenged.
Disclosure of Invention
The invention aims to solve the technical problem of providing a stirring device of a particle reinforced aluminum matrix composite material, which can uniformly mix an aluminum matrix and a reinforcing phase, prevent the adhesion of a melt on the inner wall of a stirring container and the adsorption of the reinforcing phase after reinforcing phase particles are added, and break particle agglomeration.
The technical scheme adopted by the invention for solving the technical problems is as follows: a stirring device for a particle reinforced aluminum matrix composite comprises a stirring container, a stirring rod and a scraper, wherein the stirring rod is positioned in the middle of the stirring container, the scraper is arranged close to the inner peripheral wall of the stirring container, and the rotating directions of the stirring rod and the scraper are opposite; the stirring rod is provided with a plurality of layers of blade layers, wherein the blade layers comprise a spiral blade layer and a prismatic blade layer, the prismatic blade layer comprises a plurality of prismatic blades which are distributed along the circumferential direction of the stirring rod, and the range of at least one internal angle of a cross section polygon of each prismatic blade is 30-60 degrees.
Preferably, the shape of the prismatic blade is a right prism or a tilted prism for better shearing and stirring effect.
Further preferably, the prismatic blade is in the shape of a right quadrangular prism comprising two internal angles of 30 ° and two internal angles of 150 °. The structure shears the melt through a cutting angle formed by two internal angles of 30 degrees, breaks particle agglomeration and improves the uniformity of the composite material. The cutting angle is too small, the stirring effect is poor due to insufficient driving capacity of fluid, and meanwhile, the blade of the too small cutting angle is seriously abraded in the using process, so that the fracture risk is high; the cutting angle is too large, the shearing force to the fluid is reduced, and the particle agglomeration cannot be effectively broken up.
Further preferably, the connecting positions of the prismatic blades on the stirring rod are on the same horizontal plane or distributed at different heights. It is further preferable for better stirring effect that the connecting positions of the prismatic blades on the stirring rod are on the same horizontal plane.
Further preferably, each prismatic blade layer is provided with 2-8 prismatic blades, and adjacent prismatic blades are uniformly arranged at intervals, so that the shearing force uniformity and the stability of the stirring equipment are ensured.
Preferably, the stirring rod is sequentially provided with three paddle layers, the first paddle layer and the third paddle layer are both spiral paddle layers, and the second paddle layer is a prismatic paddle layer. The first and third layer paddle of this kind of three-layer paddle layer structure adds the fuse-element and flows at stirring in-process, forms the type flow field that pushes down, promotes reinforcing granule and gets into the fuse-element, thereby the second layer paddle gives combined material fuse-element shearing force and smashes the granule and reunite, this kind of interval sets up the structure and has better stirring dispersion effect.
In order to reduce stagnation zones and dead zones during the stirring process and prevent insufficient stirring of the melt at the bottom, the distance H between the stirring rod and the bottom of the stirring vessel is in relation to the total height H of the stirring vessel
In order to have a better stirring and dispersing effect, the rotating radius of the blade layer of the stirring rod is 0.3-0.7 of the radius of the stirring container. The stirring effect is poor when the rotating radius of the blade layer is too small, and the uniformity of a stagnation area and a dead area cannot be ensured; too large a turning radius of the blade layer easily causes air entrainment, so that the air holes of the casting are increased.
In order to facilitate the adjustment of the angle of the scraper blade as required, the scraper blade is detachably connected with the scraper blade base, and the scraper blade base is provided with a connecting group which can be connected with the scraper blade at different angles, so that the scraper blade can adjust the angle relative to the inner wall of the stirring container.
Preferably, a plurality of groups of connecting groups are arranged on the lower surface of the scraper base, each group of connecting groups comprises a plurality of connecting holes which are distributed along the circumferential direction, and the connecting holes are arranged in a central symmetry manner; every group the connection group corresponds one the scraper blade, the mount pad of scraper blade upper end pass through the bolt with the connection hole can be dismantled and be connected, rotates the removable correspondence of scraper blade the connection hole.
Further preferably, each group of connecting groups comprises six connecting holes which are uniformly distributed at intervals in the circumferential direction, so that the adjacent connecting holes are 60 degrees relative to the central angle of the circle center of the connecting group, any two connecting holes which are centrosymmetric can be used for connecting the scraper, and the included angle of the scraper relative to the inner wall of the stirring container can be changed within 30-150 degrees.
Preferably, the stirring rod is connected with the scraping plate through a gear mechanism, so that when the motor drives the stirring rod to rotate, the scraping plate also rotates synchronously. Make through gear mechanism and just can synchronous drive puddler and scraper blade using a motor, simple structure is convenient for control.
Preferably, the motor is coupled with the stirring rod, and the outer periphery of the stirring rod is provided with a first outer gear tooth part; the scraper is arranged on an annular scraper base, the scraper base is provided with a first inner gear tooth portion, and the first inner gear tooth portion is connected with the first outer gear tooth portion through a gear set.
Preferably, the gear set is at least one second external gear, and the second external gear is simultaneously meshed with the first external gear teeth and the first internal gear teeth.
Further preferably, the gear set is two second external gears which are arranged in a central symmetry manner relative to the circle center of the first external gear teeth portion. This kind of two outer gear's of second structure leaves sufficient secondary reinforced space on guaranteeing agitating unit's equilibrium basis, is convenient for at the secondary reinforced of stirring in-process.
In order to control the rotation speed ratio of the scraper and the stirring rod, the number ratio of the teeth of the first outer wheel tooth part and the first inner wheel tooth part is 1: 2-1: 20, so that the rotation speed of the scraper is smaller than that of the stirring rod, the rotation speeds of the scraper and the stirring rod are in positive correlation and reverse in rotation direction, the rotation speed of the scraper is 1/2-1/20 of the rotation speed of the stirring rod, and the movement of a main vortex is not hindered while a shearing force is formed.
In order to facilitate the replacement of the corresponding blade layers as required and reduce the replacement cost, each blade layer is detachably connected with the stirring rod. The design of the detachable paddle layer increases the diversity of the combination of the paddle layer and can meet the requirements of different flow field environments and functions; meanwhile, the replacement is convenient, the integral replacement of the integral stirring rotor is avoided, and the cost is greatly reduced.
Further preferably, the stirring rod is provided with a screw section, each layer of the stirring rod is provided with a corresponding threaded hole, and the locking direction of the stirring rod and the locking direction of the blade layer are opposite to the rotating direction of the stirring rod. The screw and the thread are assembled, so that the structure is simple and the operation is convenient; the blade layer and the stirring rod are locked in opposite directions so as to prevent the blade layer from falling off in the stirring process.
The aluminum matrix of the invention can be selected from any conventional casting aluminum alloy such as A356, A357, A359, A360, 2025, 6061 and the like; the particulate reinforcing phase of the present invention may be selected from any one or more of conventional particulate reinforcing phases such as ceramic phases of silicon carbide, aluminum oxide, boron carbide, boron nitride, chromium oxide, etc., as well as diamond, graphite, etc.
For better heat preservation, the stirring container is a graphite crucible.
Compared with the prior art, the invention has the advantages that:
1. the stirring device is simultaneously provided with the scraping plate and the stirring rod, and the scraping plate is also stirred while the stirring rod rotates, so that the adhesion of a melt on the inner wall of the crucible and the adsorption of reinforced phase particles are avoided;
2. the rotating directions of the stirring rod and the scraper are opposite, and the melt nearby the scraper and the vortex melt generated by the rotation of the stirring rod move relatively, so that the shearing effect on the melt is enhanced, and the crushing of the agglomerated phase particles is facilitated;
3. the blade layer comprises a spiral blade layer () and a prismatic blade layer (), and the spiral blade layer () can increase the downward-pressing flow of the melt, is beneficial to mixing of the reinforcing phase and promotes the dispersion of the reinforcing phase; the prismatic blade layer () further gives a transverse shearing force to the composite material melt, which is helpful for crushing the reinforcing phase agglomerated particles, greatly improves the dispersion uniformity of the reinforcing phase particles, and can also save the time required for dispersing the reinforcing phase particles.
4. The cutting angle is formed at the edge of the prismatic blade layer, so that a good shearing effect is generated on the composite material melt, a good crushing effect is realized on the reinforcing phase agglomerated particles, and the cutting angle formed by the internal angle ranging from 30 degrees to 60 degrees is better in effect.
Drawings
FIG. 1 is a schematic front view of a stirring device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic bottom view of a squeegee base according to an embodiment of the invention;
FIG. 4 is a schematic front view of a squeegee according to an embodiment of the invention;
FIG. 5 is a side schematic view of a squeegee of an embodiment of the invention;
FIG. 6 is a schematic top view of a squeegee according to an embodiment of the invention;
FIG. 7 is a schematic structural view of a stirring rod according to an embodiment of the present invention;
FIG. 8 is a schematic view of another angle of FIG. 7;
FIG. 9 is a schematic view of a stir bar according to an embodiment of the present invention;
FIG. 10 shows the metallographic structure of an aluminum matrix composite produced by the present invention
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
As shown in fig. 1 to 9, the stirring device for the particle reinforced aluminum matrix composite comprises a stirring container 1, a stirring rod 2 and a scraper 3, wherein the stirring rod 2 is positioned in the middle of the stirring container 1, the scraper 3 is arranged close to the inner peripheral wall of the stirring container 1, and the rotation directions of the stirring rod 2 and the scraper 3 are opposite; the stirring rod 2 is provided with a plurality of blade layers, wherein the blade layers comprise a spiral blade layer 21 and a prismatic blade layer 22, the prismatic blade layer 22 comprises a plurality of prismatic blades 221 arranged along the circumferential direction of the stirring rod 2, and at least one internal angle of a cross-sectional polygon of each prismatic blade 221 ranges from 30 degrees to 60 degrees.
In order to achieve better induction heating and heat preservation, the stirring container 1 of the present embodiment is a graphite crucible. The aluminum alloy matrix of the embodiment comprises the following components in percentage by weight: 1% of Mg, 10% of Si and the balance of Al; the reinforcing phase particles are: SiC particles, 20% by volume, having a particle size of 15 μm. The effect of using other aluminum alloy matrix and reinforcing phase particles is similar.
In order to have a better stirring and dispersing effect, the stirring rod 2 of the embodiment is sequentially provided with three blade layers, the first blade layer and the third blade layer are both spiral blade layers 21, and the second layer is a prismatic blade layer 22. The prismatic blade 221 has a shape of a straight quadrangular prism including two inner corners of 30 ° and two inner corners of 150 °. The four prismatic blades 221 are uniformly spaced on the same horizontal plane.
In order to have better stirring dispersion effect and prevent insufficient stirring of the melt at the bottom, the relation between the distance H between the stirring rod 2 and the bottom of the stirring container 1 and the total height H of the stirring container 1 is
In order to obtain a better stirring and dispersing effect, the radius of rotation of the blade layer of the stirring rod 2 is 0.3 to 0.7 of the radius of the stirring container 1, and the radius of rotation of the three blade layers of the stirring rod is equal to 0.5 of the radius of the stirring container 1.
In order to adjust the angle of the scraper 3 as required, the scraper 3 is detachably connected with the scraper base 4, in order to facilitate operation, a plurality of groups of connecting groups 41 are arranged on the lower surface of the scraper base 4, each group of connecting groups 41 comprises a plurality of connecting holes 411 which are distributed along the circumferential direction, and the connecting holes 411 are arranged in a central symmetry manner; each group of connecting groups 41 is correspondingly connected with one scraper 3, the mounting seat 31 at the upper end of the scraper 3 is detachably connected with the connecting hole 411 through a bolt, and the corresponding connecting hole 411 can be replaced by rotating the scraper 3. In order to make the stirring more uniform, the present embodiment is provided with two connecting sets 41, and the two connecting sets are arranged symmetrically with respect to the center of the stirring rod 2. Each group of connection group 41 of this embodiment includes six connection holes 411 evenly arranged at circumferential intervals, thereby making the central angle of adjacent connection holes 411 relative to the center of the connection group 41 be 60 °, any two centrosymmetric connection holes 411 all can be used for connecting scraper 3, thereby making the included angle of scraper 3 relative to the inner wall of stirring container 1 be changed within 30-150 degrees, the included angle of scraper 3 relative to the inner wall of stirring container 1 of this embodiment is 90 °. The scraper 3 of this embodiment is long and has an installation seat 31 at its upper end and is connected to the corresponding connection hole 411 by a bolt.
In order to facilitate the operation and to facilitate the adjustment of the rotation speed ratio between the stirring rod 2 and the scraper 3, the stirring rod 2 and the scraper 3 are coupled by a gear mechanism, so that when the motor drives the stirring rod 2 to rotate, the scraper 3 also rotates synchronously. The motor of the embodiment is connected with the stirring rod 2, and the outer periphery of the stirring rod 2 is provided with a first outer gear tooth part 23; the scraper 3 is mounted on an annular scraper base 4, and the scraper base 4 is provided with a first inner toothed part 42, and the first inner toothed part 42 and the first outer toothed part 23 are coupled through a gear set. The gear set has a number of possible configurations, one of which is at least one second external gear 5, which second external gear 5 meshes simultaneously with the first external gear teeth 23, the first internal gear teeth 42. The gear set of this embodiment is two second external gears 5 that are arranged symmetrically with respect to the center of the first external gear teeth portion 23, and leaves sufficient secondary feeding space on the basis of ensuring the balance of the stirring device. The middle part of the scraper base 4 of the embodiment is sunken downwards to form a step part for installing an internal gear, the internal gear and the scraper base 4 can be fixed through glue, a bearing 6 is further embedded in the middle part of the scraper base 4, and an inner ring of the bearing 6 is matched with the stirring rod 2; the lower end of the bearing 6 is also provided with a limiting block 61.
In order to control the rotation speed ratio of the scraper 3 and the stirring rod 2, the ratio of the number of teeth of the first outer toothed part 23 and the first inner toothed part 42 is 1: 2-1: 20, so that the rotation speed of the scraper 3 is less than that of the stirring rod 2, and the rotation speed of the scraper 3 is 1/2-1/20 of that of the stirring rod 2. The ratio of the number of teeth of the first outer gear teeth 23 to the first inner gear teeth 42 in this embodiment is 1: 10.
In order to facilitate the replacement of the corresponding blade layers as required and reduce the replacement cost, each blade layer is detachably connected with the stirring rod 2. The puddler 2 of this embodiment is gone up and is had the screw rod section, and every layer paddle layer is equipped with corresponding screw hole, and the locking direction of paddle layer and puddler 2 is opposite with the direction of rotation of puddler 2.
Before the stirring device is used, the scraper 3 is arranged at an angle according to different melt viscosities and adsorption conditions. The motor is started to enable the stirring rod 2 and the scraper 3 to rotate simultaneously, and after stable vortex is formed, the reinforcing phase is added through the space between the second external gears 5 through mechanical powder feeding or manual powder adding. While stirring, the stirring speed of the stirring rod 2 and the scraper 3 is simultaneously adjusted by the motor according to the dispersion condition of the reinforced phase particles. The stirring rod 2 rotates at a high speed to enable the reinforcing phase particles to enter the melt and be uniformly dispersed, and the scraper 3 rotates at a low speed to enable the melt adhered to the inner wall of the crucible and the adsorbed reinforcing phase particles to enter the melt. Meanwhile, the reverse movement of the two components has a strong shearing effect on the melt, further promotes the crushing of agglomerated particles and improves the uniformity of the aluminum matrix composite.
The metallographic structure diagram of the particle reinforced aluminum matrix composite prepared by the stirring device of the embodiment is shown in fig. 10, from which it can be seen that the reinforced phase particles are uniformly distributed, the strong particles are tightly bonded with the interface of the aluminum matrix, and the wettability is good.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (10)
1. The utility model provides a granule reinforcing aluminium base composite's agitating unit, includes stirred vessel (1), its characterized in that: the stirring device comprises a stirring rod (2) positioned in the middle of a stirring container (1) and a scraping plate (3) arranged close to the inner peripheral wall of the stirring container (1), wherein the rotating directions of the stirring rod (2) and the scraping plate (3) are opposite; the stirring rod (2) is provided with a plurality of layers of blade layers, wherein the blade layers comprise a spiral blade layer (21) and a prismatic blade layer (22), the prismatic blade layer (22) comprises a plurality of prismatic blades (221) which are arranged along the circumferential direction of the stirring rod (2), and the range of at least one internal angle of the cross section polygon of each prismatic blade (221) is 30-60 degrees.
2. The stirring device for particle-reinforced aluminum-based composite material according to claim 1, characterized in that: the shape of the prismatic blade (221) is a right prism or an oblique prism, and the connecting positions of the prismatic blade (221) on the stirring rod (2) are on the same horizontal plane or distributed at different heights.
3. The stirring device for particle-reinforced aluminum-based composite material according to claim 1, characterized in that: three paddle layers are sequentially arranged on the stirring rod (2), the first paddle layer and the third paddle layer are both spiral paddle layers (21), and the second paddle layer is a prismatic paddle layer (22).
4. The stirring device for particle-reinforced aluminum-based composite material according to claim 1, characterized in that: the relation between the distance H between the stirring rod (2) and the bottom of the stirring container (1) and the total height H of the stirring container (1) is
5. The stirring device for particle-reinforced aluminum-based composite material according to claim 1, characterized in that: the rotating radius of the blade layer of the stirring rod (2) is 0.3-0.7 of the radius of the stirring container (1).
6. The stirring device for particle-reinforced aluminum-based composite material according to claim 1, characterized in that: scraper blade (3) detachably with scraper blade base (4) are connected, be equipped with on scraper blade base (4) can with different angles connecting set (41) that scraper blade (3) are connected to make scraper blade (3) can be relative stirred vessel (1) inner wall angle regulation.
7. The stirring device for particle-reinforced aluminum-based composite material according to any one of claims 1 to 6, characterized in that: the stirring rod (2) is connected with the scraping plate (3) through a gear mechanism, so that when the motor drives the stirring rod (2) to rotate, the scraping plate (3) also rotates synchronously.
8. The stirring device for particle-reinforced aluminum-based composite material according to claim 7, characterized in that: the motor is connected with the stirring rod (2), and a first outer gear tooth part (23) is arranged on the periphery of the stirring rod (2); the scraper (3) is mounted on an annular scraper base (4), the scraper base (4) is provided with a first inner gear tooth part (42), and the first inner gear tooth part (42) is connected with the first outer gear tooth part (23) through a gear set.
9. The stirring device for particle-reinforced aluminum-based composite material according to claim 8, characterized in that: the ratio of the number of teeth of the first outer gear teeth (23) to the number of teeth of the first inner gear teeth (42) is 1:2 to 1: 20.
10. The stirring device for particle-reinforced aluminum-based composite material according to any one of claims 1 to 6, characterized in that: each layer of paddle layer is detachably connected with the stirring rod (2).
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| CN202110873292.XA CN113477126A (en) | 2021-07-30 | 2021-07-30 | Stirring device for particle reinforced aluminum matrix composite |
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| CN202110873292.XA CN113477126A (en) | 2021-07-30 | 2021-07-30 | Stirring device for particle reinforced aluminum matrix composite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115572853A (en) * | 2022-12-07 | 2023-01-06 | 北京航空航天大学 | Aluminum matrix composite material refining device and preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115572853A (en) * | 2022-12-07 | 2023-01-06 | 北京航空航天大学 | Aluminum matrix composite material refining device and preparation method |
| CN115572853B (en) * | 2022-12-07 | 2023-03-10 | 北京航空航天大学 | Aluminum matrix composite material refining device and preparation method |
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