Liquid-level-stable bottom pouring type water-cooling copper mold aluminum alloy cast ingot preparation device and method

Abstract

The invention relates to the technical field of water-cooling copper mold pouring, and particularly discloses a liquid level stable bottom pouring type water-cooling copper mold aluminum alloy cast ingot preparation device and method.The liquid level stable bottom pouring type water-cooling copper mold aluminum alloy cast ingot preparation device comprises two water-cooling copper molds and a pouring cup, handles are fixedly connected to the two sides of the pouring cup, and a pouring opening and a forming cavity are formed in one side of each water-cooling copper mold; the two sprue gates and the forming cavity are correspondingly arranged; according to the cooling device disclosed by the invention, cooling water in the cooling cavity can be stirred up and down under the action of forming a plurality of flowing holes in the arc-shaped net plate, so that the cooling water sufficiently flows, the water flow speed can be increased by stirring, and the residence time of the cooling water and the inner wall surface of the cooling cavity is shortened; therefore, the cooling efficiency of the cooling water on the mold liquid in the sprue gate and the forming cavity is improved, the mold liquid can be rapidly cooled and formed under the action of the cooling water, the defects of oxide inclusion, air holes and the like in a cast ingot are avoided, the liquid level of the mold liquid is more stable during pouring, and the metallurgical quality of the alloy cast ingot is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water-cooled copper mold casting, and in particular relates to a liquid-level-stable bottom-pouring water-cooled copper mold aluminum alloy ingot preparation device and method. Background Art

[0002] Water-cooled copper mold technology is a casting process technology that uses a water cooling system to quickly cool liquid metal. Due to the fast cooling speed of this process, the internal structure of the casting is refined, thereby improving its mechanical properties. The rationality of the mold casting system of the water-cooled copper mold technology and the optimization of the water cooling system are currently the key development directions of this technology.

[0003] At present, when common water-cooled copper molds are used to prepare aluminum alloy ingots, the melt is usually poured directly into the mold cavity during pouring. In this process, the melt is prone to splashing and the liquid level is very unstable, which leads to defects such as oxide inclusions and pores in the ingot. In addition, the shrinkage compensation timing is difficult to control during pouring when the liquid level is unstable, and the ingot shrinkage cavity is large, resulting in poor metallurgical quality of the alloy ingot. Therefore, a liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device and method are proposed.

[0004] The present invention designs a new pouring system, which can make the metal liquid level rise steadily during casting, and at the same time ensure that the water in the cooling system can flow effectively and cover the entire copper mold surface, and provides a liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device. The device is used to prepare aluminum alloy ingots, reducing defects such as oxidation inclusions, pores, shrinkage cavities in the ingots, and achieving high-quality preparation of water-cooled copper mold aluminum alloy ingots. Summary of the invention

[0005] The object of the present invention is to provide a liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device and method to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device, comprising two water-cooled copper molds and a pouring cup, handles are fixedly connected to both sides of the pouring cup, one side of the two water-cooled copper molds is provided with a pouring port and a molding cavity, the two pouring ports and the molding cavity are correspondingly arranged, and also includes:

[0008] A cooling air outlet mechanism is used to cool and dissipate heat from the mold when pouring the mold, and the cooling air outlet mechanism is located inside the water-cooled copper mold;

[0009] The clamping mechanism is used to clamp the two water-cooled copper molds, and the clamping mechanism is located on the outer walls of the two water-cooled copper molds.

[0010] Preferably, the cooling air outlet mechanism includes a plurality of cooling chambers, extrusion chambers and expansion chambers opened inside the water-cooled copper mold, the bottom of the inner wall of the cooling chamber is fixedly connected to a motor box, the inside of the motor box is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a reciprocating screw, the outer wall of the reciprocating screw is threadedly connected to an arc-shaped mesh plate, one end of the arc-shaped mesh plate is fixedly connected to a fixed magnetic block, the bottom of the inner wall of the cooling chamber is fixedly connected to a limiting vertical rod, one side of the water-cooled copper mold is fixedly connected to a placing table, a limiting plate is fixedly connected to the placing table, the pouring cup is placed on the placing table, and the inner side wall of the limiting plate and the outer side wall of the pouring cup are slidingly fitted, an addition port is opened on the pouring cup, and the addition port and the pouring port are correspondingly arranged.

[0011] Preferably, a plurality of flow holes are opened on the arc-shaped mesh plate, the arc-shaped mesh plate and the limiting vertical rod are slidingly arranged, a plurality of cleaning brushes are connected to both ends of the arc-shaped mesh plate, and the cleaning brushes are slidingly fitted to the inner wall of the cooling chamber, and the extrusion chamber and the expansion chamber are respectively located on both sides of the cooling chamber.

[0012] Preferably, the cooling air outlet mechanism further comprises a first telescopic rod installed on the inner wall of the extrusion cavity, the end of the first telescopic rod is fixedly connected to an extrusion plate, and a plurality of mounting magnetic blocks are fixedly connected to the extrusion plate.

[0013] Preferably, the mounting magnetic block and the fixed magnetic block are arranged to repel each other with the same poles, an air outlet is opened at the top of the air extrusion cavity, an air outlet mesh plate is connected to the top of the air outlet, and the outer wall of the air extrusion plate and the inner wall of the air extrusion cavity are arranged to slide and fit together.

[0014] Preferably, the cooling air outlet mechanism also includes a second telescopic rod installed at the bottom of the inner wall of the expansion chamber, the end of the second telescopic rod is fixedly connected to a sliding plate, the bottom of the inner wall of the expansion chamber and the sliding plate are filled with expandable gas, and the inner wall of the expansion chamber is provided with multiple motor switches.

[0015] By setting the above technical scheme, through the effect of the cooling air outlet mechanism and the effect of opening a plurality of flow holes on the arc-shaped mesh plate, the cooling water inside the cooling cavity can be stirred up and down, so that the cooling water can flow fully. The stirring can increase the water flow rate, and shorten the residence time of the cooling water and the inner wall surface of the cooling cavity, thereby improving the cooling efficiency of the cooling water on the pouring port and the mold liquid inside the molding cavity. The increase in the flow rate means that the amount of water passing through the surface of the equipment per unit time increases, thereby accelerating the transfer and loss of heat. By using the effect of cooling water, the mold liquid can be quickly cooled and formed, avoiding the formation of defects such as oxide inclusions and pores in the ingot, making the liquid level of the mold liquid more stable during casting, and improving the metallurgical quality of the alloy ingot.

[0016] At the same time, the cleaning brush can be used to slide and clean the inner wall of the cooling chamber to prevent the temperature of the cooling water from rising and scale from forming on the inner wall of the cooling chamber, thereby improving the use effect of the cooling chamber;

[0017] When the arc-shaped mesh plate moves back and forth up and down, when the fixed magnetic block corresponds to the installation magnetic block, the extrusion plate can slide on the inner wall of the extrusion cavity to squeeze gas according to the effect of the same poles repelling each other, so that the gas is evenly ejected through the gas outlet mesh plate on the gas outlet, and the heat of the mold liquid generated above the pouring port is blown away by gas, thereby improving the heat dissipation effect above the pouring port, thereby further improving the efficiency of mold forming.

[0018] Preferably, the outer wall of the sliding plate and the inner wall of the expansion chamber are slidingly fitted, one side of the sliding plate and a plurality of motor switches are correspondingly slidingly extruded, and the easily expandable gas is one of hydrogen and nitrogen.

[0019] Preferably, the clamping mechanism includes a clamping plate, the inner wall of the clamping plate is fixedly connected to a fixing rod, the side of the clamping plate away from the fixing rod is threadedly connected to a threaded rod, a turning handle is fixedly connected to the threaded rod, and one end of the threaded rod and the fixing rod are both fixedly connected to a clamping plate.

[0020] Preferably, a threaded hole is provided on the clamping plate, and the threaded rod is threadedly connected to the clamping plate through the threaded hole. The dimensions on both sides of the clamping plate are larger than the outer wall dimensions of the two water-cooled copper molds. The dimensions of the water-cooled copper molds are 200mm×105mm. The interior of the addition port is trapezoidal, the bottom radius of the addition port is 20mm, the height of the trapezoidal addition port is 24mm, and the bottom inclination angle of the pouring port is 12-18 degrees.

[0021] A method for preparing a water-cooled copper mold aluminum alloy ingot preparation device, comprising:

[0022] Step 1: Melt the raw materials such as pure aluminum and master alloy in a resistance furnace, heat the melt to 700℃-800℃, blow argon gas for refining, and keep the aluminum liquid warm after testing it is qualified for use;

[0023] Step 2: During the alloy smelting period, assemble a water-cooled copper mold ingot preparation device, and clean the lower end of the device with a smooth steel plate of more than 20 mm as a working platform;

[0024] Step 3: Paint the inner wall of the shaped pouring cup, dry it in a 200℃-300℃ drying oven for more than 2 hours, take it out 5 minutes before pouring, and install it stably;

[0025] Step 4: After the aluminum liquid temperature reaches 690℃-740℃, open the water inlet and outlet pipes to allow the cooling water to circulate fully and prepare for pouring;

[0026] Step 5: At the beginning of pouring, the flow rate is slow to ensure that the liquid flow washes the inner wall of the pouring cup, and cannot directly wash the inner wall of the metal mold; after the liquid flow is stable, increase the flow rate, fill the mold quickly, and keep the liquid level rising steadily; when the liquid level is about to reach the top, reduce the flow rate to facilitate shrinkage compensation;

[0027] Step 6: After sufficient cooling, open the clamping plate, open the two water-cooled copper molds, take out the aluminum alloy ingot, turn off the cooling water, and complete a workflow.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] Through the cooling and air outlet mechanism, the cooling water in the cooling cavity can be stirred up and down by using the multiple flow holes on the arc-shaped mesh plate, so that the cooling water can flow fully. The stirring can increase the water flow rate and shorten the residence time of the cooling water and the inner wall surface of the cooling cavity, thereby improving the cooling efficiency of the cooling water on the pouring port and the mold liquid inside the molding cavity. The increase in flow rate means that the amount of water passing through the surface of the equipment per unit time increases, thereby accelerating the transfer and loss of heat. The mold liquid can be quickly cooled and formed by using the cooling water, avoiding the formation of defects such as oxide inclusions and pores in the ingot, making the liquid level of the mold liquid more stable during casting, and improving the metallurgical quality of the alloy ingot.

[0030] At the same time, the cleaning brush can be used to slide and clean the inner wall of the cooling chamber to prevent the temperature of the cooling water from rising and scale from forming on the inner wall of the cooling chamber, thereby improving the use effect of the cooling chamber;

[0031] When the arc-shaped mesh plate moves back and forth up and down, when the fixed magnetic block corresponds to the installation magnetic block, the extrusion plate can slide on the inner wall of the extrusion cavity to squeeze gas according to the effect of the same poles repelling each other, so that the gas is evenly ejected through the gas outlet mesh plate on the gas outlet, and the heat of the mold liquid generated above the pouring port is blown away by gas, thereby improving the heat dissipation effect above the pouring port, thereby further improving the efficiency of mold forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of the present invention;

[0033] Figure 2 This is a structural diagram of the pouring cup of the present invention being separated from the water-cooled copper mold;

[0034] Figure 3 It is a top cross-sectional structural diagram of the present invention;

[0035] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A;

[0036] Figure 5It is a cross-sectional structural diagram of the cooling chamber of the present invention;

[0037] Figure 6 For the present invention Figure 5 The enlarged structural diagram at location B;

[0038] Figure 7 It is a side sectional structural diagram of the present invention;

[0039] Figure 8 It is a structural diagram of the clamping mechanism of the present invention;

[0040] Fig. 9 It is a cross-sectional structural diagram of the pouring cup of the present invention.

[0041] In the figure: 1. water-cooled copper mold; 2. pouring cup; 3. handle; 4. pouring port; 5. molding cavity; 6. water inlet pipe; 7. water outlet pipe; 8. placing table; 9. limit plate; 10. cooling cavity; 101. air squeezing cavity; 102. expansion cavity; 103. first telescopic rod; 104. air squeezing plate; 105. mounting magnet; 106. motor box; 107. servo motor; 108. reciprocating screw; 109. arc mesh plate; 1010. fixed magnet; 1011. second telescopic rod; 1012. sliding plate; 1013. expandable gas; 1014. motor switch; 1015. limit vertical rod; 11. clamping plate; 111. fixed rod; 112. threaded rod; 113. turning handle; 114. splint. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Embodiment 1

[0044] like Figure 1-8As shown, a liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device includes two water-cooled copper molds 1 and a pouring cup 2, handles 3 are fixedly connected to both sides of the pouring cup 2, one side of the two water-cooled copper molds 1 is provided with a pouring port 4 and a molding cavity 5, the two pouring ports 4 and the molding cavity 5 are correspondingly arranged, and also includes: a cooling air outlet mechanism, which is used to cool and dissipate the heat of the mold when pouring the mold, the cooling air outlet mechanism is located inside the water-cooled copper mold 1, and the cooling air outlet mechanism includes a plurality of cooling cavities 10, an extrusion cavity 101 and an expansion cavity 102 opened inside the water-cooled copper mold 1, and the bottom of the inner wall of the cooling cavity 10 is fixedly connected to a motor box 106, and the motor A servo motor 107 is fixedly connected to the inside of the chassis 106, and a reciprocating screw 108 is fixedly connected to the output end of the servo motor 107. The outer wall of the reciprocating screw 108 is threadedly connected to an arc-shaped mesh plate 109, and one end of the arc-shaped mesh plate 109 is fixedly connected to a fixed magnetic block 1010. The bottom of the inner wall of the cooling chamber 10 is fixedly connected to a limiting vertical rod 1015. A placing table 8 is fixedly connected to one side of the water-cooled copper mold 1, and a limiting plate 9 is fixedly connected to the placing table 8. The pouring cup 2 is placed on the placing table 8, and the inner side wall of the limiting plate 9 and the outer side wall of the pouring cup 2 are slidingly fitted. An addition port is opened on the pouring cup 2, and the addition port and the pouring port 4 are correspondingly arranged;

[0045] The present invention further specifically describes that a plurality of flow holes are provided on the arc-shaped mesh plate 109, the arc-shaped mesh plate 109 and the limit vertical rod 1015 are slidably arranged, a plurality of cleaning brushes are connected to both ends of the arc-shaped mesh plate 109, and the cleaning brushes are slidably fitted to the inner wall of the cooling chamber 10, and the squeezing chamber 101 and the expansion chamber 102 are respectively located on both sides of the cooling chamber 10;

[0046] like Figure 1-8 As shown, the cooling air outlet mechanism also includes a first telescopic rod 103 installed on the inner wall of the squeezing cavity 101, and the end of the first telescopic rod 103 is fixedly connected to a squeezing plate 104, and a plurality of mounting magnetic blocks 105 are fixedly connected to the squeezing plate 104;

[0047] The present invention further specifically describes that the mounting magnetic block 105 and the fixed magnetic block 1010 are set to be corresponding with the same polarity repelling each other, the top of the squeezing cavity 101 is provided with an air outlet, the top of the air outlet is connected with an air outlet mesh plate, and the outer wall of the squeezing plate 104 and the inner wall of the squeezing cavity 101 are set to be slidably fitted;

[0048] like Figure 1-8 As shown, the cooling air outlet mechanism also includes a second telescopic rod 1011 installed at the bottom of the inner wall of the expansion chamber 102, the end of the second telescopic rod 1011 is fixedly connected to a sliding plate 1012, the bottom of the inner wall of the expansion chamber 102 and the sliding plate 1012 are filled with expandable gas 1013, and the inner wall of the expansion chamber 102 is provided with a plurality of motor switches 1014;

[0049] The present invention further specifically describes that the outer wall of the sliding plate 1012 and the inner wall of the expansion chamber 102 are slidingly fitted, one side of the sliding plate 1012 and a plurality of motor switches 1014 are correspondingly slidingly extruded, and the easily expandable gas 1013 is one of hydrogen or nitrogen;

[0050] As can be seen from the above, after the clamping mechanism completes clamping the two water-cooled copper molds 1, the pouring cup 2 is first placed on the placement table 8, and the addition port is made to correspond to the pouring port 4, and then the mold liquid to be poured is added into the pouring port 4 through the addition port, and continuously injected into the molding cavity 5. By utilizing the function of the pouring cup 2, the distance of the top of the pouring port 4 is increased, and when the mold liquid is added, the mold liquid can be prevented from splashing, thereby improving the safety of the staff during pouring;

[0051] Open the water inlet pipe 6 and the water outlet pipe 7, and inject cooling water into the internal circulation of the cooling chamber 10. It should be noted that the water inlet pipe 6 and the water outlet pipe 7 are both connected to the interior of the cooling chamber 10, and the working principles of the two are the existing technology, and their working principles are not described in detail;

[0052] When the mold liquid is added to the inside of the pouring port 4, the easily expandable gas 1013 is expanded according to the effect of heat transfer, and the sliding plate 1012 is correspondingly slid upward and separated from the motor switch 1014, so that the multiple servo motors 107 are turned on. When the servo motor 107 is working, it drives the reciprocating screw 108 to rotate, and according to the effect of the threaded connection between the arc mesh plate 109 and the reciprocating screw 108, it is reciprocated up and down. By using the effect of the multiple flow holes on the arc mesh plate 109, the cooling water inside the cooling chamber 10 can be moved up and down. Stirring allows the cooling water to flow fully. Stirring can increase the water flow rate and shorten the residence time of the cooling water and the inner wall surface of the cooling chamber 10, thereby improving the cooling efficiency of the cooling water on the mold liquid inside the pouring port 4 and the molding cavity 5. The increase in flow rate means that the amount of water passing through the surface of the equipment per unit time increases, thereby accelerating the transfer and loss of heat. The mold liquid can be quickly cooled and formed by utilizing the cooling water, avoiding the formation of defects such as oxide inclusions and pores in the ingot, making the liquid level of the mold liquid more stable during casting, and improving the metallurgical quality of the alloy ingot;

[0053] At the same time, the cleaning brush can be used to slide and clean the inner wall of the cooling chamber 10, so as to avoid the temperature of the cooling water from rising and the formation of scale on the inner wall of the cooling chamber 10, thereby improving the use effect of the cooling chamber 10;

[0054] When the arc-shaped mesh plate 109 moves up and down, when the fixed magnetic block 1010 corresponds to the mounting magnetic block 105, the extrusion plate 104 can slide and extrude gas on the inner wall of the extrusion cavity 101 according to the effect of the same poles repelling each other, so that the gas is evenly ejected through the gas outlet mesh plate on the gas outlet, and the heat of the mold liquid generated above the pouring port 4 is blown away by gas, thereby improving the heat dissipation effect above the pouring port 4, thereby further improving the efficiency of mold forming;

[0055] It should be noted that after the mold liquid is fully filled, the pouring cup 2 is removed.

[0056] Embodiment 2

[0057] like Figure 1-8 As shown, on the basis of the above-mentioned embodiment 1, a clamping mechanism is additionally provided for clamping the two water-cooled copper molds 1, the clamping mechanism is located on the outer walls of the two water-cooled copper molds 1, and the clamping mechanism includes a clamping plate 11, the inner wall of the clamping plate 11 is fixedly connected with a fixing rod 111, a threaded rod 112 is threadedly connected to a side of the clamping plate 11 away from the fixing rod 111, a turning handle 113 is fixedly connected to the threaded rod 112, and a clamping plate 114 is fixedly connected to one end of the threaded rod 112 and the fixing rod 111;

[0058] The present invention further specifically describes that a threaded hole is provided on the clamping plate 11, and the threaded rod 112 is threadedly connected to the clamping plate 11 through the threaded hole. The dimensions of both sides of the clamping plate 11 are larger than the outer wall dimensions of the two water-cooled copper molds 1. The dimensions of the water-cooled copper mold 1 are 200 mm×105 mm. The inside of the addition port is trapezoidally arranged. The bottom radius of the addition port is 20 mm. The height of the trapezoidally arranged addition port is 24 mm. The bottom inclination angle of the pouring port 4 is 12-18 degrees.

[0059] As can be seen from the above, when pouring the mold, the two water-cooled copper molds 1 are fitted correspondingly, and then the clamping plate 11 is placed on the outer walls of the two water-cooled copper molds 1. At this time, the handle 113 is turned to drive the threaded rod 112 to rotate, so that the distance between the inner walls of the clamping plate 11 can be reduced, so that the clamping plate 114 clamps and fits the outer walls of the two water-cooled copper molds 1, thereby increasing the pouring efficiency of the water-cooled copper mold 1 for pouring the mold.

[0060] A method for preparing a water-cooled copper mold aluminum alloy ingot preparation device, comprising:

[0061] Step 1: Melt the raw materials such as pure aluminum and master alloy in a resistance furnace, heat the melt to 700℃-800℃, blow argon gas for refining, and keep the aluminum liquid warm after testing it is qualified for use;

[0062] Step 2: During the alloy smelting period, assemble a water-cooled copper mold ingot preparation device, and clean the lower end of the device with a smooth steel plate of more than 20 mm as a working platform;

[0063] Step 3: Paint the inner wall of the shaped pouring cup 2, dry it in a 200℃-300℃ drying oven for more than 2 hours, take it out 5 minutes before pouring, and install it stably;

[0064] Step 4: After the aluminum liquid temperature reaches 690℃-740℃, open the water inlet pipe 6 and the water outlet pipe 7 to allow the cooling water to circulate fully and prepare for pouring;

[0065] Step 5: At the beginning of pouring, the flow rate is slow to ensure that the liquid flow washes the inner wall of the pouring cup 2, and cannot directly wash the inner wall of the metal mold; after the liquid flow is stable, increase the flow rate, fill the mold quickly, and keep the liquid level rising steadily; when the liquid level is about to reach the top, reduce the flow rate to facilitate shrinkage compensation;

[0066] Step 6: After sufficient cooling, open the clamping plate 11, open the two water-cooled copper molds 1, take out the aluminum alloy ingot, turn off the cooling water, and complete a workflow.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device, characterized in that: The invention comprises two water-cooled copper molds (1) and a pouring cup (2), wherein handles (3) are fixedly connected to both sides of the pouring cup (2), and a pouring port (4) and a molding cavity (5) are provided on one side of the two water-cooled copper molds (1), wherein the two pouring ports (4) and the molding cavity (5) are arranged correspondingly, and further comprises: A cooling air outlet mechanism, used for cooling and dissipating heat from the mold when pouring into the mold, wherein the cooling air outlet mechanism is located inside the water-cooled copper mold (1); The clamping mechanism is used for clamping the two water-cooled copper moulds (1), and the clamping mechanism is located on the outer walls of the two water-cooled copper moulds (1).

2. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 1, characterized in that: The cooling air outlet mechanism comprises a plurality of cooling chambers (10), an air squeezing chamber (101) and an expansion chamber (102) which are arranged inside a water-cooled copper mold (1); a motor box (106) is fixedly connected to the bottom of the inner wall of the cooling chamber (10); a servo motor (107) is fixedly connected to the inside of the motor box (106); a reciprocating screw (108) is fixedly connected to the output end of the servo motor (107); an arc-shaped mesh plate (109) is threadedly connected to the outer wall of the reciprocating screw (108); and the arc-shaped mesh plate (109) One end of the cooling chamber (10) is fixedly connected to a fixed magnetic block (1010), the bottom of the inner wall of the cooling chamber (10) is fixedly connected to a limiting vertical rod (1015), one side of the water-cooled copper mold (1) is fixedly connected to a placement table (8), a limiting plate (9) is fixedly connected to the placement table (8), the pouring cup (2) is placed on the placement table (8), and the inner wall of the limiting plate (9) and the outer wall of the pouring cup (2) are slidably fitted, and an addition port is provided on the pouring cup (2), and the addition port and the pouring port (4) are correspondingly arranged.

3. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 2, characterized in that: The arc-shaped mesh plate (109) is provided with a plurality of flow holes, the arc-shaped mesh plate (109) and the limiting vertical rod (1015) are slidably arranged, a plurality of cleaning brushes are connected to both ends of the arc-shaped mesh plate (109), and the cleaning brushes are slidably fitted to the inner wall of the cooling chamber (10), and the extrusion chamber (101) and the expansion chamber (102) are respectively located on both sides of the cooling chamber (10).

4. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 2, characterized in that: The cooling air outlet mechanism also includes a first telescopic rod (103) mounted on the inner wall of the extrusion cavity (101); an end of the first telescopic rod (103) is fixedly connected to an extrusion plate (104); and a plurality of mounting magnetic blocks (105) are fixedly connected to the extrusion plate (104).

5. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 4, characterized in that: The mounting magnetic block (105) and the fixed magnetic block (1010) are arranged to repel each other with the same polarities, an air outlet is provided at the top of the air squeezing cavity (101), an air outlet mesh plate is connected to the top of the air outlet, and the outer wall of the air squeezing plate (104) and the inner wall of the air squeezing cavity (101) are arranged to slide and fit together.

6. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 4, characterized in that: The cooling air outlet mechanism also includes a second telescopic rod (1011) installed at the bottom of the inner wall of the expansion chamber (102), the end of the second telescopic rod (1011) is fixedly connected to a sliding plate (1012), the bottom of the inner wall of the expansion chamber (102) and the sliding plate (1012) are filled with expandable gas (1013), and the inner wall of the expansion chamber (102) is provided with a plurality of motor switches (1014).

7. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 6, characterized in that: The outer wall of the sliding plate (1012) and the inner wall of the expansion chamber (102) are slidingly fitted, one side of the sliding plate (1012) and a plurality of motor switches (1014) are correspondingly slidingly extruded, and the easily expandable gas (1013) is one of hydrogen and nitrogen.

8. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 6, characterized in that: The clamping mechanism comprises a clamping plate (11), the inner wall of the clamping plate (11) is fixedly connected to a fixing rod (111), a side of the clamping plate (11) away from the fixing rod (111) is threadedly connected to a threaded rod (112), a turning handle (113) is fixedly connected to the threaded rod (112), and one end of the threaded rod (112) and the fixing rod (111) are both fixedly connected to a clamping plate (114).

9. The liquid level stable bottom pouring water-cooled copper mold aluminum alloy ingot preparation device according to claim 8, characterized in that: The clamping plate (11) is provided with a threaded hole, and the threaded rod (112) is threadedly connected to the clamping plate (11) through the threaded hole. The dimensions of both sides of the clamping plate (11) are larger than the outer wall dimensions of the two water-cooled copper molds (1). The dimensions of the water-cooled copper molds (1) are 200 mm×105 mm. The interior of the addition port is trapezoidal in shape, the bottom radius of the addition port is 20 mm, the height of the trapezoidal addition port is 24 mm, and the bottom inclination angle of the pouring port (4) is 12-18 degrees.

10. A method for preparing an aluminum alloy ingot using a water-cooled copper mold preparation device according to any one of claims 1 to 9, characterized in that: Included are: Step 1: Melt the raw materials such as pure aluminum and master alloy in a resistance furnace, heat the melt to 700℃-800℃, blow argon gas for refining, and keep the aluminum liquid warm after testing it is qualified for use; Step 2: During the alloy smelting period, assemble a water-cooled copper mold ingot preparation device, and clean the lower end of the device with a smooth steel plate of more than 20 mm as a working platform; Step 3: Paint the inner wall of the shaped pouring cup (2), dry it in a drying oven at 200°C-300°C for more than 2 hours, take it out 5 minutes before pouring, and install it stably; Step 4: After the aluminum liquid temperature reaches 690°C-740°C, open the water inlet pipe (6) and the water outlet pipe (7) to allow the cooling water to circulate fully and prepare for pouring; Step 5: At the beginning of pouring, the flow rate is slow to ensure that the liquid flow washes the inner wall of the pouring cup (2) and cannot directly wash the inner wall of the metal mold; after the liquid flow stabilizes, the flow rate is increased to quickly fill the mold and keep the liquid level rising steadily; when the liquid level is about to reach the top, the flow rate is reduced to facilitate shrinkage compensation; Step 6: After sufficient cooling, open the clamping plate (11), open the two water-cooled copper molds (1), take out the aluminum alloy ingot, turn off the cooling water, and complete a work process.

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