Aluminum alloy ingot casting device suitable for aluminum alloy extrusion

Abstract

The invention discloses an aluminum alloy ingot casting device suitable for aluminum alloy extrusion, relates to the technical field of aluminum alloy ingot casting, and aims to optimize and improve the cooling forming process of an aluminum alloy bar, in particular to a process section LQD2 and a process section LQD4 which are used as key optimization points, the process section LQD2 mainly promotes aluminum alloy melt to preliminarily form a solidification shell in an indirect heat exchange mode, and the process section LQD4 mainly promotes the aluminum alloy melt to primarily form a solidification shell in an indirect heat exchange mode; the flow mode of cooling water is improved, a vortex and vibration combined scheme is additionally arranged, on one hand, the cooling distance and the cooling time in the LQD2 are prolonged, the key purpose is to improve the heat exchange efficiency through the vibration applying mode, and on the other hand, it is indicated about the process section LQD4 that it is essentially that it is guaranteed that the interior of a casting shaft is in a semi-waterless state, and the heat exchange efficiency is improved; specifically, cooling water obtained after heat exchange in the process sections LQD2 and LQD3 is recycled to serve as a cooling water source in the process sections, so that the purpose of continuing cooling and shaping is still achieved, and the dangerous problem of accidental explosion cannot occur even if aluminum alloy melt accidentally leaks into a casting shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum alloy ingots, and particularly to an aluminum alloy ingot device suitable for aluminum alloy extrusion. Background Art

[0002] Regarding the aluminum alloy extrusion process, it is based on aluminum alloy rods. For the cooling step in the ingot casting process of aluminum alloy rods, the main method is water cooling. Molten aluminum is injected into the mold and cooled to form aluminum ingots / rods. However, high-temperature molten aluminum poses a great safety risk. For example, if the molten aluminum leaks from the mold and reacts with the water in the casting well, a violent explosion will occur, causing a catastrophic accident of "factory destruction and human casualties". Therefore, the cooling process of aluminum ingots is particularly important, and the waterless (dry casting) cooling method is the safest.

[0003] However, referring to the relevant content in the publication number CN106925732A, the larger the size of the aluminum ingot / rod, the greater the internal gradient temperature difference, and the deeper the liquid cavity formed on the surface. The relatively slow waterless cooling speed exacerbates the influence caused by the gradient temperature difference. Such problems directly affect the quality of the aluminum ingot / rod. For example, the internal temperature of the aluminum ingot is relatively high, and the cooling and solidification speed is slower. After overall cooling, problems such as bending, fracture, and pad marks of the aluminum ingot occur. In the water cooling method, there is a risk of accidental "explosion". Therefore, this application proposes a solution. Summary of the Invention

[0004] The purpose of the present invention is to provide an aluminum alloy ingot device suitable for aluminum alloy extrusion. For the cooling process in the production of aluminum ingots, although the conventional waterless cooling method has high safety, its cooling efficiency is low, which exacerbates the temperature difference between the inside and outside of the aluminum ingot and directly affects the forming quality of the product. Problems such as bending, fracture, and pad marks of the aluminum ingot occur. The water cooling efficiency is relatively high, but there is also a high-risk of accidental "explosion" due to the leakage of high-temperature molten aluminum and its reaction with the cooling water in the casting well.

[0005] The purpose of the present invention can be achieved by the following technical solutions: An aluminum alloy ingot device suitable for aluminum alloy extrusion includes a mold, a casting well, and an aluminum alloy rod. The mold is arranged at the upper opening position of the casting well, and a lower water jacket is installed at the lower side position of the mold. A water ring seat and a ingot supporting water seat are arranged at the lower side position of the lower water jacket, and a directional water jacket is installed at the lower side position of the lower water jacket;

[0006] A process section LQD1 is arranged in the crystallizer. The lower side position of the lower water jacket corresponding to the process section LQD1 is set as the process section LQD2. The lower end position of the directional water jacket corresponding to the process section LQD2 is set as the process section LDQ3. The position between the ingot support water seat and the water ring seat is set as the process section LQD4. The process section LQD1 is a transition section for the aluminum alloy melt. The process section LQD2 performs the shell cooling action. The process sections LQD3 and LQD4 perform the first-stage cooling action and the second-stage cooling action respectively. The aluminum alloy melt obtains an aluminum alloy rod through the shell cooling action, the first-stage cooling action and the second-stage cooling action in sequence.

[0007] It is further set that: A heat-conducting partition sleeve is installed inside the crystallizer at the position corresponding to the inner wall of the lower water jacket. The lower end of the heat-conducting partition sleeve is fixedly connected to the upper surface of the directional water jacket, and a wave flow chamber is formed between the outer wall of the lower end of the heat-conducting partition sleeve and the inner wall of the lower water jacket.

[0008] It is further set that: A number of impact hollow balls are arranged in the wave flow chamber. The diameter of each impact hollow ball is different, and the diameter of the impact hollow ball is smaller than the ring diameter of the wave flow chamber.

[0009] It is further set that: An upper water inlet and a lower water outlet are respectively arranged at the upper end and the lower end of the outer wall of the wave flow chamber corresponding to the process section LQD2. The lower water outlet penetrates to the inner position of the directional water jacket. In the process section LQD2, the cooling water flows in the direction from the lower water outlet to the upper water inlet.

[0010] It is further set that: A water permeable opening corresponding to the wave flow chamber is arranged at the upper surface position of the directional water jacket, and an eddy current fan group is arranged at the inner position of the directional water jacket.

[0011] It is further set that: A first-stage low-temperature water inlet is arranged at the outer wall position of the lower water jacket corresponding to the lower side of the directional water jacket.

[0012] It is further set that: A second-stage water return opening corresponding to the process section LQD4 is arranged on the water ring seat, and the water ring seat is located at the outer position of the aluminum alloy rod. The inner diameter of the water ring seat matches the outer diameter of the ingot support water seat.

[0013] It is further set that: A water return pipeline is arranged inside the ingot support water seat. The water return pipeline is used to recover the cooling water in the process section LQD3 and the process section LQD2.

[0014] The present invention has the following beneficial effects:

[0015] 1. Optimize and improve the cooling and forming process of aluminum alloy rods: Specifically reflected in the improvement process in process sections LQD2 and LQD4. The overall plan mainly focuses on process sections LQD1, LQD2, LQD3, and LQD4. Taking process section LQD4 as an example: The key content is to recycle the cooling water after heat exchange in process sections LQD2 and LQD3, and use the recycled cooling water as the cooling water source in this process section. Thus, it can be understood that the overall casting well is in a semi - waterless state, but it is still process section LQD4 that continuously cools the aluminum alloy rod. On the basis of having the ability of continuous cooling and forming, when the aluminum alloy melt accidentally leaks into the casting well, there will be no dangerous situation of accidental explosion due to the contact between the aluminum alloy melt and water.

[0016] 2. Explain process section LQD2. Specifically, by optimizing the flow mode of the cooling water in this process section, ensuring that it flows in the direction from bottom to top to extend the cooling time and cooling distance. However, the key content is reflected in the turbine fan group and the impact ball in the directional water jacket, combined with the flow process of the cooling water to form a combined scheme of vortex + vibration. 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, improve the forming efficiency and forming quality of the solidified shell, and mainly serve as the pre - process section for LQD3 and LQD4. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 In the present invention Figure 1 Cross - sectional view

[0020] Figure 3 It is a sectional view of the crystallizer relative to the lower water jacket of the present invention;

[0021] Figure 4 In the present invention Figure 3 Front view

[0022] Figure 5 It is a working schematic diagram of the present invention;

[0023] Figure 6 In the present invention Figure 2 Process section schematic diagram.

[0024] In the figure: 1. Mould; 2. Casting well; 3. Heat-conducting partition sleeve; 4. Lower water jacket; 401. Wave flow bin; 402. Impact ball; 403. Upper water inlet; 404. Lower water inlet; 405. First-stage low-temperature water inlet; 5. Directional water jacket; 501. Turbine fan group; 6. Water ring seat; 7. Ingot supporting water seat. Specific embodiments

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1: For the cooling process in the production of aluminum ingots, although the conventional anhydrous cooling method has relatively high safety, its cooling efficiency is low, which increases the temperature difference between the inside and outside of the aluminum ingot and directly affects the forming quality of the product. Problems such as bending, fracture, and pad marks of the aluminum ingot may occur. Although the water cooling efficiency is relatively high, there is also a high-risk of accidental "explosion" due to the leakage of high-temperature aluminum liquid and its reaction with the cooling water in the casting well. Therefore, the following technical solutions are proposed:

[0027] Refer to Figures 1 to 6 , an aluminum alloy ingot device suitable for aluminum alloy extrusion in this embodiment includes a mould 1, a casting well 2, and an aluminum alloy rod. The mould 1 is arranged at the upper opening position of the casting well 2, and a lower water jacket 4 is installed at the lower side position of the mould 1. A water ring seat 6 and an ingot supporting water seat 7 are arranged at the lower side position of the lower water jacket 4, and a directional water jacket 5 is installed at the lower side position of the lower water jacket 4;

[0028] A process section LQD1 is arranged in the mould 1. The lower side position of the lower water jacket 4 corresponding to the process section LQD1 is set as the process section LQD2. The lower end position of the directional water jacket 5 corresponding to the process section LQD2 is set as the process section LDQ3. The position between the ingot supporting water seat 7 and the water ring seat 6 is set as the process section LQD4. The process section LQD1 is the transition section of the aluminum alloy melt. The process section LQD2 performs the shell cooling action. The process sections LQD3 and LQD4 perform the first-stage cooling action and the second-stage cooling action respectively. The aluminum alloy melt obtains the aluminum alloy rod through the shell cooling action, the first-stage cooling action, and the second-stage cooling action in sequence.

[0029] Basic principle: Regarding the forming process of the aluminum alloy rod in combination with Figure 2A brief description of the current conventional measures: The mold 1 is installed above the casting well 2. The aluminum alloy melt is poured into the mold 1, and then during the cooling process, it is first pre-cooled at the lower side of the heat-conducting partition sleeve 3. For this, the cylindrical shape at the lower side of the heat-conducting partition sleeve 3 needs to be restricted. During the pre-cooling process, a solidified shell is formed, and the solidified shell serves as a "container" for holding the aluminum alloy melt. Then, it is cooled successively by water-cooling to form an aluminum alloy rod after the aluminum alloy melt is completely cooled. The relevant structures of the mold 1 and the casting well 2 are not described. The obvious difference between the present invention and the conventional cooling method lies in the relevant optimization process during the technological process. Specifically, it is combined with Figure 6 The description is as follows:

[0030] Process section LQD1: The aluminum alloy melt is directly poured into the mold 1 and is in the natural cooling process. And it can also be used as an area for fishing out impurities such as dross. It can be understood that this process section is only located in the upper region of the heat-conducting partition sleeve 3, and this part will not be described in detail;

[0031] Process section LQD2: This part mainly focuses on the lower cylindrical region of the heat-conducting partition sleeve 3. During this process, cooling water is mainly injected through the lower water inlet 404 and drained through the upper water inlet 403 for the cooling process. Through the indirect heat exchange process, the aluminum alloy melt is preliminarily cooled to form a solidified shell;

[0032] Process section LQD3: As described in process section LQD2 and the conventional cooling process of the aluminum alloy rod: In the initial state, the ingot support water seat 7 is located below the lower water jacket 4 and is used to block the lower side of the heat-conducting partition sleeve 3. After the solidified shell is formed, the ingot support water seat 7 slowly moves down, and the ingot support water seat 7 can be driven to move by structures such as oil cylinders / cylinders. This part will not be described;

[0033] The key content of this process section is that after the solidified shell moves down to the position corresponding to the first-order low-temperature water inlet, low-temperature water is injected through the first-order low-temperature water inlet and directly sprayed on the outer surface of the solidified shell to quickly take away the heat inside the solidified shell in a direct contact manner, and the solidified shell is thickened by increasing the solidification speed of the aluminum alloy;

[0034] Process section LQD4: Because heat transfer efficiency needs to be considered, although injecting low-temperature water through the first-order low-temperature water nozzle "takes away" most of the heat, it cannot fully ensure that the interior of the aluminum alloy is also in a completely solidified state. If the continuous cooling method with low-temperature water is adopted, on the one hand, a large amount of cooling water will be consumed, and on the other hand, it will also 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 that has completed heat transfer in process sections LQD2 and LQD3. Specifically, after the low-temperature water sprayed from the first-order low-temperature water nozzle 405 exchanges heat with the aluminum alloy rod, it finally flows downward along the outer surface of the aluminum alloy rod and is recycled through the return water pipe. Similarly, the cooling water flowing out from the water inlet 403 in process section LQD2 will also be used as the water source in process section LQD4. Its essence is: After collecting and concentrating the cooling water that has completed heat transfer in process sections LQD2 and LQD4, it is used as the cooling water source in the cooling method of process section LQD4. This purpose 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 purpose is to avoid the dangerous state of accidental explosion when the aluminum alloy melt accidentally penetrates 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 to make it completely formed and cooled.

[0035] Example 2: The following explanations are made for the above four process sections:

[0036] Inside the mold 1, a heat-conducting partition sleeve 3 is installed corresponding to the inner wall position 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 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, a wave flow chamber 401 is formed. In the wave flow chamber 401, a number of impact hollow balls 402 are provided. The diameter of each impact hollow ball 402 is different, and the diameter of the impact hollow ball 402 is smaller than the ring diameter of the wave flow chamber 401. At the upper and lower ends of the outer wall of the wave flow chamber 401 corresponding to process section LQD2, a water inlet 403 and a water outlet 404 are respectively provided. The water outlet 404 penetrates to the inner position of the directional water jacket 5. In process section LQD2, the cooling water flows in the direction from the water outlet 404 to the water inlet 403. At the upper surface position of the directional water jacket 5, a water-permeable opening corresponding to the wave flow chamber 401 is provided, and an eddy current fan group 501 is provided in the inner position of the directional water jacket 5. At the outer wall position of the lower water jacket 4 corresponding to the lower side of the directional water jacket 5, a first-order low-temperature water nozzle 405 is provided. On the water ring seat 6, a second-order return water opening corresponding to process section LQD4 is provided, 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 supporting seat 7. Inside the ingot supporting seat 7, a return water pipe is provided, and the return water pipe is used to recycle the cooling water in process sections LQD3 and LQD4.

[0037] Solution description: The key step in the cooling process of aluminum alloy melt lies in process section LQD2. Specifically, as shown in Figures 3 to 5 , during the stage when the aluminum alloy melt forms a solidified shell, the cooling water in the wave flow bin 401 and the aluminum alloy melt are in an indirect heat exchange process, and its efficiency is relatively slow. Therefore, in this process, it is first necessary to restrict the flow of the cooling water in process section LQD2 in the upward direction from bottom to top to extend the heat exchange time and distance. However, considering the process of the aluminum alloy melt forming a solidified shell, it is necessary to further change the water flow direction in the wave flow bin 401. Taking Figure 5 as an example, when the cooling water is injected from the lower water inlet 404, it first directly enters the directional water jacket 5. Utilizing the high-pressure state when the cooling water is injected, it drives the turbine fan group 501 to rotate directionally. The purpose is to ensure that the cooling water flows along the upper end of the upper surface of the directional water jacket 5, and the rotation process of the turbine fan group 501 changes the flow mode of the cooling water. Specifically, it forms a water flow form similar to a vortex.

[0038] However, the key point is that when the cooling water flows upward in the form of a water flow similar to a vortex, it will also drive the impact hollow ball 402 to float. The impact hollow ball 402 itself has a certain weight, but under the action of the vortex, it will also generate an upward thrust, thereby driving the impact hollow ball 402 to have the ability to move upward. However, as shown in Figure 5 , the diameters of the impact hollow balls 402 are not the same, so the weight of each impact hollow ball 402 and the magnitude of the thrust generated by the turbine are different, and ultimately each impact hollow ball 402 collides with each other to generate a sense of vibration. The sense of vibration will ultimately be transmitted to the aluminum alloy melt in process section LQD2 through the heat conduction partition sleeve 3. The benefits during the cooling process of the aluminum alloy melt are as follows: 1. Applying vibration (mechanical vibration, electromagnetic vibration or ultrasonic vibration) during the cooling process of the aluminum alloy melt can significantly improve the material properties. Vibration can increase the number of nucleation sites during solidification of the melt, promote the formation of crystal nuclei and inhibit excessive grain growth, and ultimately obtain a fine and uniform grain structure; 2. Vibration drives bubbles and impurities in the melt to migrate to the surface of the melt, reducing the generation probability of defects such as pores and slag inclusions. Vibration energy can promote microscopic plastic deformation during solidification, reduce and homogenize the 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, it is also necessary to consider the transmission efficiency of vibration in water. Therefore, it is necessary to increase the injection speed of the cooling water through the lower water inlet 404, thereby driving 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 impact hollow ball 402 and increase the vibration frequency, but the overall process will not interfere with the cooling process in process section LQD2.

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

[0040] As described in Embodiment 1 and Embodiment 2: The obvious difference between the present invention and the conventional cooling process of aluminum alloy melt is that: the inside of the casting well 2 is in a semi-waterless state. A simple explanation of the semi-waterless state is that in the casting well 2, the aluminum alloy rod is still continuously cooled by the process section LQD4. As Figure 6 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. And the ingot support water seat 7 is mainly used to recover the cooling water after heat exchange in the process sections LQD2 and LQD3. However, the cooling water ejected from the water ring seat 6 will eventually flow into the ingot support water seat 7. Thus, it can be understood that: the cooling water flowing out of any process section will not fill the casting well 2. However, the following supplementary description is needed:

[0041] S1: Regarding the process section LQD2, it is necessary to control the downward movement speed of the ingot support water seat 7 according to the temperature difference between the upper water inlet 403 and the lower water outlet 404. Its essence is that: the temperature difference between the upper water inlet 403 and the lower water outlet 404 directly reflects the forming efficiency of the solidified shell. If the temperature difference between the two is large, it means that the heat exchange efficiency is fast and the forming efficiency of the solidified shell is relatively fast; conversely, if the temperature difference between the two is small, it means that the forming quality of the solidified shell is low, then it is necessary to reduce the downward movement speed of the ingot support water seat 7 and extend the cooling time in the process section LQD2.

[0042] S2: Regarding the process section LQD4, since it will simultaneously recover the cooling water after heat exchange in the process sections LQD2 and LQD3, there is an obvious fluctuation in the temperature after the two cooling waters are mixed. In this regard, it is also necessary to control the temperature of the low-temperature water in the process section LQD3 according to the mixed temperature of the cooling water recovered from the process sections LQD2 and LQD3 at the return water pipeline. Its essence is that: if the mixed temperature of the cooling water is relatively high, then this part of the recovered cooling water does not have the cooling capacity for the aluminum alloy rod in the process section LQD4. Thus, directly discharge a part of the recovered cooling water, increase the water volume of the low-temperature water in the process section LQD2, and reduce the temperature of the low-temperature water in the process section LQD2. Conversely, if the mixed temperature of the cooling water still meets the cooling requirements in the process section LQD4, then continue to use the recovered cooling water as the cooling water source in the process section LQD4.

[0043] Regarding the parts of S1 and S2, it is mainly based on the relevant control system, which will not be introduced and explained in detail in the present invention.

[0044] In summary: The cooling and forming process of the aluminum alloy rod is optimized and improved. Specifically, the process sections LQD2 and LQD4 are used as the key optimization points. In the process section LQD2, the indirect heat exchange method is mainly used to promote the initial formation of a solidification shell of the aluminum alloy melt, and the flow mode of the cooling water therein is improved. A combined scheme of vortex and vibration is added. On the one hand, it is to extend the cooling distance and cooling time in LQD2. The key purpose is to improve the heat exchange efficiency by applying vibration. Regarding the process section LQD4, it is described as follows: 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 the process sections LQD2 and LQD3 is recycled as the cooling water source in this process section, so as to still have the purpose of continuing to cool and shape. Even when the aluminum alloy melt accidentally leaks into the inside of the casting well, there will be no dangerous problem of accidental explosion.

[0045] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as it does not deviate from the structure of the invention or exceed the scope defined by this claim book, it shall fall within the protection scope of the present invention.

[0046] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation manners. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art of this technology can understand and utilize the present invention well. The present invention is only limited by the claim book and its full scope and equivalents.

Claims

1. An aluminum alloy ingot device suitable for aluminum alloy extrusion, comprising a crystallizer (1), a casting well (2) and an aluminum alloy rod, characterized in that, The mold (1) is arranged at the upper opening position of the casting shaft (2), and a lower water jacket (4) is installed at the lower side position of the mold (1). A water ring seat (6) and a ingot supporting water seat (7) are arranged at the lower side position of the lower water jacket (4), and a directional water jacket (5) is installed at the lower side position of the lower water jacket (4). A process section LQD1 is arranged in the mold (1). The lower side position of the lower water jacket (4) corresponding to the process section LQD1 is set as the process section LQD2. The lower end position of the directional water jacket (5) corresponding to the process section LQD2 is set as the process section LDQ3. The process section LQD4 is arranged between the ingot supporting water seat (7) and the water ring seat (6). The process section LQD1 is a transition section of the aluminum alloy melt. The process section LQD2 performs the shell cooling action. The process sections LQD3 and LQD4 perform the first-order cooling action and the second-order cooling action respectively. The aluminum alloy melt obtains an aluminum alloy rod through the shell cooling action, the first-order cooling action and the second-order cooling action in sequence.

2. The aluminum alloy ingot device applicable to aluminum alloy extrusion according to claim 1, wherein, A heat-conducting partition sleeve (3) corresponding to the inner wall position of the lower water jacket (4) is installed inside the mold (1). 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 flow 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).

3. An aluminum alloy ingot device suitable for aluminum alloy extrusion according to claim 2, characterized in that, A number of impact hollow balls (402) are arranged in the wave flow chamber (401). The diameter of each impact hollow ball (402) is different, and the diameter of the impact hollow ball (402) is smaller than the ring diameter of the wave flow chamber (401).

4. An aluminum alloy ingot device applicable to aluminum alloy extrusion according to claim 2, characterized in that, An upper water inlet (403) and a lower water outlet (404) are respectively arranged at the upper end and the lower end of the outer wall of the wave flow chamber (401) corresponding to the process section LQD2. The lower water outlet (404) penetrates to the inner position of the directional water jacket (5). In the process section LQD2, the cooling water flows in the direction from the lower water outlet (404) to the upper water inlet (403).

5. An aluminum alloy ingot device applicable to aluminum alloy extrusion according to claim 4, characterized in that, A water permeable opening corresponding to the wave flow chamber (401) is opened at the upper surface position of the directional water jacket (5), and a vortex fan group (501) is arranged in the inner position of the directional water jacket (5).

6. An aluminum alloy ingot device suitable for aluminum alloy extrusion according to claim 1, characterized in that, A first-order low-temperature water inlet (405) is opened at the outer wall position of the lower water jacket (4) corresponding to the lower side of the directional water jacket (5).

7. An aluminum alloy ingot device applicable to aluminum alloy extrusion according to claim 1, characterized in that, A second-order water return opening corresponding to the process section LQD4 is opened on the water ring seat (6), and the water ring seat (6) is located at the outer position of the aluminum alloy rod. The inner diameter of the water ring seat (6) is matched with the outer diameter of the ingot supporting water seat (7).

8. An aluminum alloy ingot device suitable for aluminum alloy extrusion according to claim 7, characterized in that, A water return pipeline is arranged inside the ingot supporting water seat (7), and the water return pipeline is used to recover the cooling water in the process section LQD3 and the process section LQD2.

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