An aluminum alloy ingot casting device suitable for aluminum alloy extrusion

Abstract

The application discloses an aluminum alloy ingot casting device suitable for aluminum alloy extrusion and relates to the technical field of aluminum alloy ingot casting. The cooling forming process of an aluminum alloy rod is optimized and improved. Specifically, process sections LQD2 and LQD4 are taken as key optimization points. The process section LQD2 mainly promotes the aluminum alloy melt to preliminarily form a solidification shell in an indirect heat exchange mode, and the flow mode of cooling water is improved. A vortex and vibration combination scheme is additionally arranged. On the one hand, the cooling distance and cooling time in the LQD2 are prolonged. The key purpose is to improve the heat exchange efficiency by applying vibration. The process section LQD4 is described. The essence is to ensure that the inside of the casting shaft is in a semi-waterless state. Specifically, the cooling water after heat exchange in the process sections LQD2 and LQD3 is recycled as the cooling water source in the process section, so that the purpose of continuing cooling and shaping is still achieved. Even if the aluminum alloy melt accidentally leaks into the inside of the casting shaft, the dangerous problem of accidental explosion does not occur.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aluminum alloy ingot casting, and particularly relates to an aluminum alloy ingot casting device suitable for aluminum alloy extrusion. BACKGROUND

[0002] Regarding the aluminum alloy extrusion process, the aluminum alloy rod is taken as the basis, and regarding the cooling step in the ingot casting process of the aluminum alloy rod, the water cooling mode is mainly adopted. After the aluminum water is injected into the crystallizer for cooling, the aluminum ingot / rod is formed. The high-temperature aluminum water has a great safety influence. For example, the aluminum water leaks out of the crystallizer and reacts with the water in the casting well, causing a violent explosion, resulting in a vicious accident of "factory destruction and human death". Therefore, the cooling process of the aluminum ingot is particularly important. The waterless (dry casting) cooling mode is the safest.

[0003] However, referring to the related content in the publication CN106925732A, the larger the size of the aluminum ingot / rod is, the greater the internal temperature gradient is, and the deeper the liquid cavity formed on the surface is. The waterless cooling speed is relatively slow, and the influence caused by the temperature gradient is aggravated. Such problems directly affect the quality of the aluminum ingot / rod. For example, the internal temperature of the aluminum ingot is relatively high, the cooling and solidification speed is slower, and after overall cooling, the aluminum ingot is bent, broken, and has a pad mark. There is a risk of unexpected explosion in the water cooling mode. A solution is proposed. SUMMARY

[0004] The purpose of the application is to provide an aluminum alloy ingot casting device suitable for aluminum alloy extrusion. For the cooling process in the production process of the aluminum ingot, the conventional waterless cooling mode has higher safety, but the cooling efficiency is lower, and the temperature difference inside and outside the aluminum ingot is aggravated, which directly affects the product forming quality, such as the problems of aluminum ingot bending, breaking, and pad mark. The water cooling efficiency is relatively high, but there is a high-risk risk of unexpected explosion due to leakage of high-temperature aluminum water and reaction with the cooling water in the casting well.

[0005] The purpose of the application can be achieved by the following technical scheme: an aluminum alloy ingot casting device suitable for aluminum alloy extrusion, comprising a crystallizer, a casting well and an aluminum alloy rod, the crystallizer is arranged at the upper opening position of the casting well, and a lower water jacket is arranged at the lower side of the crystallizer, a water ring seat and a ingot supporting water seat are arranged at the lower side of the lower water jacket, and a directional water jacket is arranged at the lower side of the lower water jacket.

[0006] The crystallizer is provided with a process section LQD1, the lower water jacket is provided with a process section LQD2 corresponding to the lower position of the process section LQD1, the directional water jacket is provided with a process section LDQ3 corresponding to the lower end position of the process section LQD2, and the process section LQD4 is arranged between the spindle water seat and the water ring seat; the process section LQD1 is a transition section of the aluminum alloy melt, the process section LQD2 performs a shell cooling action, the process sections LQD3 and LQD4 perform a first-stage cooling action and a second-stage cooling action respectively, and the aluminum alloy melt sequentially passes through the shell cooling action, the first-stage cooling action and the second-stage cooling action to obtain an aluminum alloy rod.

[0007] Further, the crystallizer is internally provided with a heat-conducting separation sleeve corresponding to the inner wall position of the lower water jacket, the heat-conducting separation sleeve is fixedly connected between the lower end and the upper surface of the directional water jacket, and the heat-conducting separation sleeve forms a wave flow chamber between the outer wall of the lower end and the inner wall of the lower water jacket.

[0008] Further, the wave flow chamber is provided with a plurality of impactor empty balls, each of which has a different diameter, and the diameter of the impactor empty ball is smaller than the ring diameter of the wave flow chamber.

[0009] Further, the wave flow chamber is provided with an upper water inlet and a lower water inlet at the upper end and the lower end of the outer wall of the process section LQD2, the lower water inlet penetrates into the internal position of the directional water jacket, and the cooling water flows in the direction from the lower water inlet to the upper water inlet in the process section LQD2.

[0010] Further, the directional water jacket is provided with a water inlet corresponding to the wave flow chamber at the upper surface position, and the directional water jacket is provided with a vortex fan group at the internal position.

[0011] Further, the lower water jacket is provided with a first-stage low-temperature water inlet at the outer wall position corresponding to the lower side of the directional water jacket.

[0012] Further, the water ring seat is provided with a second-stage water return inlet corresponding to the process section LQD4, and the water ring seat is located at the external position of the aluminum alloy rod, and the inner diameter of the water ring seat matches the outer diameter of the spindle water seat.

[0013] Further, the spindle water seat is internally provided with a water return pipeline for recycling the cooling water in the process section LQD3 and the process section LQD2.

[0014] The present application has the following advantages:

[0015] 1. Optimization and improvement of the cooling and forming process of aluminum alloy bars: This is specifically reflected in the improvements in process sections LQD2 and LQD4. The overall scheme mainly focuses on process sections LQD1, LQD2, LQD3, and LQD4, with process section LQD4 as an example. The key content is to recover the cooling water after heat exchange in process sections LQD2 and LQD3, and use the recovered cooling water as the cooling water source in this process section. This can be understood as follows: the entire casting well is in a semi-waterless state, but process section LQD4 still continuously cools the aluminum alloy bars. With the ability to continuously cool and form, if molten aluminum alloy accidentally leaks into the casting well, there will be no dangerous situation of accidental explosion due to contact between molten aluminum alloy and water.

[0016] 2. The LQD2 process section is explained in detail. Specifically, the cooling water flow pattern in this process section is optimized to ensure that it flows from bottom to top, thereby extending the cooling time and cooling distance. However, the key content is reflected in the turbine fan group and the impactor sphere in the directional water jacket. Combined with the cooling water flow process, a combination scheme of vortex + vibration is formed. On the one hand, it further extends the cooling distance and cooling time in LQD2. The key purpose is to improve the heat exchange efficiency by applying vibration, thereby improving the forming efficiency and forming quality of the solidified shell. It is mainly used as a pre-process section in LQD3 and LQD4. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 In this invention Figure 1 sectional view

[0020] Figure 3 This is a cross-sectional view of the crystallizer relative to the lower water jacket in this invention;

[0021] Figure 4 In this invention Figure 3 The front view;

[0022] Figure 5 This is a schematic diagram illustrating the operation of the present invention;

[0023] Figure 6 In this invention Figure 2 A schematic diagram of the process section.

[0024] In the diagram: 1. Crystallizer; 2. Casting well; 3. Heat-conducting partition sleeve; 4. Lower water jacket; 401. Wave flow chamber; 402. Impact sphere; 403. Upper water inlet; 404. Lower water inlet; 405. First-stage low-temperature water inlet; 5. Directional water jacket; 501. Turbine fan assembly; 6. Water ring seat; 7. Ingot support water seat. Detailed Implementation

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1: Regarding the cooling process in aluminum ingot production, conventional waterless cooling methods, while offering high safety, have low cooling efficiency and exacerbate the temperature difference between the inside and outside of the aluminum ingot, directly affecting product forming quality, such as causing problems like ingot bending, breakage, and padding marks. Water cooling, while relatively efficient, carries a high risk of accidental "explosion" due to leakage of high-temperature molten aluminum reacting with the cooling water in the casting well. The following technical solution is proposed to address this:

[0027] Reference Figures 1 to 6 An aluminum alloy ingot casting device suitable for aluminum alloy extrusion in this embodiment includes a crystallizer 1, a casting well 2 and an aluminum alloy rod. The crystallizer 1 is located at the upper opening of the casting well 2, and a lower water sleeve 4 is installed on the lower side of the crystallizer 1. A water ring seat 6 and an ingot support water seat 7 are located on the lower side of the lower water sleeve 4, and a directional water sleeve 5 is installed on the lower side of the lower water sleeve 4.

[0028] The crystallizer 1 is equipped with a process section LQD1. The lower water jacket 4 is positioned below the process section LQD1 as process section LQD2. The directional water jacket 5 is positioned at the lower end of the process section LQD2 as process section LQD3. The area between the ingot support water seat 7 and the water ring seat 6 is set as process section LQD4. Process section LQD1 is the transition section for the aluminum alloy melt. Process section LQD2 performs the shell cooling action. Process sections LQD3 and LQD4 perform the first-stage cooling action and the second-stage cooling action, respectively. The aluminum alloy melt sequentially passes through the shell cooling action, the first-stage cooling action, and the second-stage cooling action to obtain the aluminum alloy rod.

[0029] Basic principle: The forming process of aluminum alloy rods is combined with... Figure 2A simplified explanation of the conventional method: The crystallizer 1 is installed above the casting wellbore 2. Molten aluminum alloy is poured into the crystallizer 1. During the cooling process, pre-cooling occurs first in the lower part of the heat-conducting partition sleeve 3. This requires restricting the cylindrical shape of the lower part of the heat-conducting partition sleeve 3, forming a solidified outer shell during pre-cooling. This solidified outer shell acts as a "container" for the molten aluminum alloy. Then, it is cooled sequentially by water cooling until the molten aluminum alloy is completely cooled and forms an aluminum alloy rod. The specific structures of the crystallizer 1 and casting wellbore 2 are not described. The significant difference between this invention and conventional cooling methods lies in the optimization of the process, specifically in conjunction with… Figure 6 The following explanation is provided:

[0030] Process section LQD1: The molten aluminum alloy is directly poured into the crystallizer 1 and is in a natural cooling process. It can also be used as an area to remove scum and other impurities. It can be understood that this process section is only located in the upper part of the heat-conducting partition sleeve 3. This part will not be explained in detail.

[0031] Process section LQD2: This part mainly targets the lower part of the cylindrical heat-conducting partition sleeve 3. In this process, cooling water is mainly injected through the lower water inlet 404 and drained through the upper water inlet 403. The aluminum alloy melt is initially cooled to form a solidified shell through the indirect heat exchange process.

[0032] Process segment LQD3: As described in process segment LQD2 and the conventional cooling process of aluminum alloy rod: In the initial state, the ingot support water seat 7 is located on the lower side of the lower water jacket 4 to seal the lower side of the heat conduction separation sleeve 3. After the solidified shell is formed, the ingot support water seat 7 slowly moves down. The ingot support water seat 7 can be moved by a structure such as a hydraulic cylinder / pneumatic cylinder. This part will not be described.

[0033] The key part of this process is: after the solidified shell moves down to the position corresponding to the first-stage low-temperature nozzle, low-temperature water is injected through the first-stage low-temperature nozzle and sprayed directly onto the outer surface of the solidified shell. This direct contact method quickly removes the heat inside the solidified shell, thereby increasing the solidification speed of the aluminum alloy and thickening the solidified shell.

[0034] Process section LQD4: Due to the need to consider heat exchange efficiency, although injecting low-temperature water through the first-stage low-temperature nozzle "removes" most of the heat, it cannot completely guarantee that the interior of the aluminum alloy is also in a fully solidified state. If a continuous low-temperature water cooling method is used, on the one hand, it will consume a large amount of cooling water, and on the other hand, it will slow down the cooling and forming speed of the aluminum alloy rod. Therefore, process section LQD4 is added to extend the cooling time. It should also be noted that the cooling water used in process section LQD4 is mainly the cooling water after heat exchange in process sections LQD2 and LQD3. Specifically, the low-temperature water sprayed from the first-stage low-temperature nozzle 405 exchanges heat with the aluminum alloy rod and finally flows downward along the outer surface of the aluminum alloy rod and through... The cooling water is recycled through the return water pipe. Similarly, the cooling water flowing out of the inlet 403 in process section LQD2 will also be used as the water source in process section LQD4. The essence is to collect and concentrate the cooling water after heat exchange in process sections LQD2 and LQD4, and then use it as the cooling water source in the cooling method of process section LQD4. The purpose of this is to ensure that when the aluminum alloy rod is formed and continuously located in the casting well 2, the casting well 2 will not be completely filled with water and will be in a waterless state. This is to avoid the dangerous situation of accidental explosion when the aluminum alloy molten metal accidentally seeps into the casting well 2. However, it is still necessary to use LQD4 to continuously cool and lower the temperature of the aluminum alloy rod so that it can be fully formed and cooled.

[0035] Example 2: The following explanation is provided for the four process sections mentioned above:

[0036] Inside the crystallizer 1, a heat-conducting partition sleeve 3 is installed, corresponding to the inner wall of the lower water jacket 4. The lower end of the heat-conducting partition sleeve 3 is fixedly connected to the upper surface of the directional water jacket 5, and a wave chamber 401 is formed between the outer wall of the lower end of the heat-conducting partition sleeve 5 and the inner wall of the lower water jacket 4. Several impactor spheres 402 are arranged in the wave chamber 401, each with a different diameter, and the diameter of the impactor spheres 402 is smaller than the annular diameter of the wave chamber 401. An upper water inlet 403 and a lower water inlet 404 are respectively arranged at the upper and lower ends of the outer wall of the wave chamber 401 corresponding to the LQD2 process section. The lower water inlet 404 penetrates into the interior of the directional water jacket 5. In D2, the cooling water flows from the lower inlet 404 to the upper inlet 403. A perforation corresponding to the wave chamber 401 is opened on the upper surface of the directional water jacket 5, and a vortex fan group 501 is opened inside the directional water jacket 5. A first-stage low-temperature water inlet 405 is opened on the outer wall of the lower side of the directional water jacket 5. A second-stage return water inlet corresponding to the process section LQD4 is opened on the water ring seat 6, and the water ring seat 6 is located outside the aluminum alloy rod. The inner diameter of the water ring seat 6 matches the outer diameter of the ingot support water seat 7. A return water pipe is installed inside the ingot support water seat 7. The return water pipe is used to recover the cooling water in the process sections LQD3 and LQD4.

[0037] Solution Description: The key step in the cooling process of molten aluminum alloy lies in process section LQD2, specifically as follows... Figures 3 to 5 As shown, during the stage where the molten aluminum alloy forms a solidified shell, the cooling water in the wave chamber 401 and the molten aluminum alloy undergo an indirect heat exchange process, which is relatively slow. Therefore, in this process, it is first necessary to restrict the flow of cooling water in process section LQD2 from bottom to top to prolong the heat exchange time and distance. However, considering the process of the molten aluminum alloy forming a solidified shell, it is necessary to further change the water flow direction in the wave chamber 401 to... Figure 5 For example, when the cooling water is injected from the drain port 404, it first enters the directional water jacket 5 directly. The high pressure state when the cooling water is injected drives the turbine fan assembly 501 to rotate in a directional manner. The purpose is to ensure that the cooling water flows along the upper part of the upper surface of the directional water jacket 5. The rotation process of the turbine fan assembly 501 changes the flow mode of the cooling water, specifically forming a water flow form similar to a vortex.

[0038] However, the key point is that when the cooling water flows upward in a vortex-like pattern, it also causes the hollow sphere 402 to float. The hollow sphere 402 itself has a certain weight, but under the influence of the vortex, it also generates an upward thrust, thus enabling the hollow sphere 402 to move upward. Figure 5 As shown, the diameters of the impactor spheres 402 are not the same, resulting in varying weights and thrust from the turbine. This leads to collisions and vibrations between the spheres, which are then transmitted to the molten aluminum alloy in process section LQD2 via the heat-conducting separator sleeve 3. The benefits of applying vibration (mechanical, electromagnetic, or ultrasonic) during the cooling process are: 1. Vibration during the cooling process significantly improves material properties. Vibration increases the number of nucleation sites during solidification, promoting crystal formation and inhibiting excessive grain growth, ultimately resulting in a fine and uniform grain structure; 2. Vibration drives the molten aluminum alloy to... The vibration energy can promote microscopic plastic deformation during solidification, reduce and homogenize residual stress, and improve the dimensional stability of the material. However, the key effect is that vibration accelerates the heat exchange during the cooling of the melt, which helps to shorten the solidification cycle. However, the transmission efficiency of vibration in water also needs to be considered. Therefore, it is necessary to increase the injection speed of cooling water through the drain port 404, which drives the rotation speed of the turbine fan group 501. The vortex effect generated by the turbine fan group 501 will also accelerate the collision degree of each impactor sphere 402 and increase the vibration frequency. However, the overall process will not interfere with the cooling process in the LQD2 process section.

[0039] Example 3: This example is a supplementary explanation of Examples 2 and 1:

[0040] As illustrated in Examples 1 and 2, the significant difference between this invention and the conventional cooling process for molten aluminum alloy lies in the fact that the casting wellbore 2 is in a semi-anhydrous state. To briefly explain this semi-anhydrous state, the aluminum alloy rod is still continuously cooled within the casting wellbore 2 via process section LQD4. Figure 6 As shown, the ingot support water seat 7 needs to continuously support the aluminum alloy rod, so it must be located below the lower water jacket 4 and the water ring seat 6. The ingot support water seat 7 is mainly used to recover the cooling water after heat exchange in process sections LQD2 and LQD3. However, the cooling water sprayed from the water ring seat 6 will eventually flow into the ingot support water seat 7. Therefore, it can be understood that the cooling water flowing out of any process section will not fill the casting well channel 2. However, the following supplementary explanation is required:

[0041] S1: Regarding process section LQD2, the downward movement speed of the ingot support 7 needs to be controlled according to the temperature difference between the upper inlet 403 and the lower inlet 404. Essentially, the temperature difference between the upper inlet 403 and the lower inlet 404 directly reflects the forming efficiency of the solidified shell. If the temperature difference is large, the heat exchange efficiency is faster, and the solidified shell forming efficiency is relatively fast. Conversely, if the temperature difference is small, it indicates that the solidified shell forming quality is low. Therefore, it is necessary to reduce the downward movement speed of the ingot support 7 and extend the cooling time in process section LQD2.

[0042] S2: Regarding process section LQD4, since it simultaneously recovers the cooling water after heat exchange in process sections LQD2 and LQD3, the temperature fluctuates significantly after the two cooling waters mix. Therefore, it is necessary to further control the temperature of the low-temperature water in process section LQD3 based on the mixed temperature of the recovered cooling water in process section LQD2 and LQD3 at the return water pipe. Essentially, if the mixed temperature of the cooling water is relatively high, this portion of the recovered cooling water does not have a cooling capacity relative to the aluminum alloy rod in process section LQD4. Thus, a portion of the recovered cooling water is directly discharged, and the amount of low-temperature water in process section LQD2 is increased while the temperature of the low-temperature water in process section LQD2 is decreased. Conversely, if the mixed temperature of the cooling water still meets the cooling requirements in process section LQD4, the recovered cooling water continues to be used as the cooling water source in process section LQD4.

[0043] Regarding parts S1 and S2, the relevant control system is the primary focus, and they will not be described or explained in detail in this invention.

[0044] In summary, the cooling and forming process of aluminum alloy bars was optimized and improved, with process sections LQD2 and LQD4 as the key optimization points. Process section LQD2 mainly promotes the initial formation of a solidified shell from the molten aluminum alloy through indirect heat exchange, and the flow pattern of the cooling water is improved by adding a combination of eddy currents and vibration. On the one hand, this extends the cooling distance and cooling time in LQD2, and the key purpose is to improve heat exchange efficiency by applying vibration. As for process section LQD4, its essence is to ensure that the inside of the casting well is in a semi-waterless state. Specifically, the cooling water after heat exchange in process sections LQD2 and LQD3 is used as the cooling water source for this process section, so that the purpose of continuing cooling and shaping can still be achieved. Even if the molten aluminum alloy accidentally leaks into the inside of the casting well, there will be no risk of accidental explosion.

[0045] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An aluminum alloy ingot casting apparatus suitable for aluminum alloy extrusion, comprising a crystallizer (1), a casting well (2), and an aluminum alloy rod, characterized in that, The crystallizer (1) is located at the upper opening of the casting well channel (2), and a lower water sleeve (4) is installed on the lower side of the crystallizer (1). A water ring seat (6) and a spindle support water seat (7) are provided on the lower side of the lower water sleeve (4), and a directional water sleeve (5) is installed on the lower side of the lower water sleeve (4). The crystallizer (1) is provided with process section LQD1. The lower water jacket (4) is set as process section LQD2 at the lower side of process section LQD1. The directional water jacket (5) is set as process section LDQ3 at the lower end of process section LQD2. The ingot support water seat (7) and the water ring seat (6) are set as process section LQD4. Process section LQD1 is the transition section of aluminum alloy melt. Process section LQD2 performs shell cooling action. Process sections LQD3 and LQD4 perform first-stage cooling action and second-stage cooling action respectively. The aluminum alloy melt passes through the shell cooling action, first-stage cooling action and second-stage cooling action in sequence to obtain aluminum alloy rod. The crystallizer (1) is equipped with a heat-conducting partition sleeve (3) corresponding to the position of the inner wall of the lower water jacket (4). The lower end of the heat-conducting partition sleeve (3) is fixedly connected to the upper surface of the directional water jacket (5), and a wave chamber (401) is formed between the outer wall of the lower end of the heat-conducting partition sleeve (3) and the inner wall of the lower water jacket (4). The wave chamber (401) is provided with a plurality of impactor spheres (402), each of which has a different diameter and the diameter of the impactor spheres (402) is smaller than the annular diameter of the wave chamber (401); The wave chamber (401) is provided with an upper water inlet (403) and a lower water inlet (404) at the upper and lower ends of the outer wall of the LQD2 process section, respectively. The lower water inlet (404) extends into the interior of the directional water jacket (5). In the LQD2 process section, cooling water flows in the direction from the lower water inlet (404) to the upper water inlet (403). The directional water jacket (5) has a water inlet corresponding to the wave chamber (401) on its upper surface, and a vortex fan group (501) is provided inside the directional water jacket (5).

2. The aluminum alloy ingot casting device suitable for aluminum alloy extrusion according to claim 1, characterized in that, The lower water jacket (4) has a first-stage low-temperature water inlet (405) on the outer wall of the lower side corresponding to the directional water jacket (5).

3. The aluminum alloy ingot casting device suitable for aluminum alloy extrusion according to claim 1, characterized in that, The water ring seat (6) is provided with a second-stage return water port corresponding to the LQD4 process section, and the water ring seat (6) is located outside the aluminum alloy rod. The inner diameter of the water ring seat (6) matches the outer diameter of the ingot support water seat (7).

4. The aluminum alloy ingot casting device suitable for aluminum alloy extrusion according to claim 3, characterized in that, The water support base (7) is equipped with a return water pipe, which is used to recover the cooling water in process section LQD3 and process section LQD2.

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