High-strength cast aluminum alloy, casting process and casting equipment

Abstract

The invention relates to the technical field of aluminum alloy casting, in particular to a high-strength cast aluminum alloy, a casting process and casting device.The high-strength cast aluminum alloy comprises two sets of symmetrically-arranged circulating conveying mechanisms, and combined casting molds are annularly distributed on the circulating conveying mechanisms; a locking driving area and a casting area which are connected end to end can be formed between the two groups of circulating conveying mechanisms; the combined casting mold comprises a casting half pipe, a locking assembly arranged on the casting half pipe and a locking driving rod matched with the locking assembly. The combined casting mold has the beneficial effects that the two sets of circulating conveying mechanisms are controlled by the control system to drive the combined casting molds to move circularly, the combined casting molds at the corresponding positions can be combined into a complete whole in the moving process to be used for aluminum alloy bar casting, the combined casting molds are separated again after casting, and the combined casting molds are separated again. And the formed aluminum alloy bar can be demoulded, so that continuous casting forming of the aluminum alloy bar can be realized, and the efficiency of casting operation can be greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aluminum alloy casting, in particular to a high-strength cast aluminum alloy, a casting process and a casting equipment. BACKGROUND

[0002] The application range of aluminum materials is diversified, and the aluminum materials are no longer limited to the motorcycle and automobile industries and are widely applied to the fields of rail transit and aviation. Therefore, the demand for recycled aluminum alloy rods in China presents a situation of continuous growth, and the requirements for various performance indicators of the alloy rods are also higher and higher. The aluminum alloy rod is an alloy prepared by adding other elements according to international standards or special requirements to improve the casting, chemical and physical properties of pure aluminum, and is suitable for casting and can make the castings have good performance.

[0003] For example, the patent with the publication number CN112276028B discloses a high-speed cast rod equipment for aluminum alloy, which comprises a flow tank plate, a sealed heat preservation box, a first flow tank, a pressurizing mechanism and a die head frame. The flow tank plate is provided with a second flow tank, the second flow tank is provided with a casting hole penetrating the flow tank plate upward and downward, and a crystallizer is installed at the lower end of the casting hole. A plurality of sealed heat preservation boxes are arranged above the flow tank plate, and the bottom of the sealed heat preservation box is communicated with the second flow tank. The first flow tank is connected with the sealed heat preservation box and is used for guiding the aluminum liquid in the melting furnace into the sealed heat preservation box. The pressurizing mechanism is used for pressurizing the aluminum liquid in the sealed heat preservation box through gas. The flow speed of the aluminum liquid is controlled through the pressurizing mechanism, so that the casting quality is improved.

[0004] In the prior art of the above patent, the aluminum alloy rod is cast through the die head frame with multiple die heads, but the operation is periodic, and the feeding and discharging processes occupy a lot of time, resulting in a large amount of idle time during the whole operation, and continuous casting of the aluminum alloy rod cannot be realized. Therefore, a high-strength cast aluminum alloy, a casting process and a casting equipment are urgently needed to solve the above problems. SUMMARY

[0005] The application aims to provide a high-strength cast aluminum alloy, a casting process and a casting equipment to solve the above problems in the prior art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a high-strength cast aluminum alloy, each component of the high-strength cast aluminum alloy is in percentage by mass: manganese 3.0-4.5%, iron 2.2-3.3%, copper 1.1-2.5%, zinc 0.4-0.8%, magnesium 1-2%, silicon 0.05-0.07%, nickel 0.23-0.30%, cerium 0.20-0.35%, chromium 0.07-0.012%, vanadium 0.05-0.06%, cadmium 0.02-0.03%, titanium 0.02-0.05%, boron 0.06-0.1%, zirconium 0.01-0.03%, and the balance is aluminum.

[0007] A casting process of a high-strength cast aluminum alloy, comprising the following steps: Step one: material melting: pure aluminum or recycled aluminum material is put into a melting device, and the material is melted at 720-740 DEG C; Step two: continuous casting: the melted material is transferred to a casting machine, and the melted material is cast into an aluminum alloy rod through the cooperation of the casting machine and the continuous casting device; Step three: surface treatment: the cast aluminum alloy rod is polished to remove burrs and oxide layers; Step four: detection: the appearance size of the aluminum alloy rod is detected by a detection device.

[0008] A casting device used in a casting process of a high-strength cast aluminum alloy, comprising two sets of symmetrical circulating conveying mechanisms, and a combined casting mold is arranged in a ring shape on the circulating conveying mechanism; a locking driving area and a casting area can be formed between the two sets of circulating conveying mechanisms; The combined casting mold comprises a casting half pipe, a locking assembly arranged on the casting half pipe, and a locking driving rod matched with the locking assembly; The combined casting mold can circulate through the locking driving area and the casting area under the driving of the circulating conveying mechanism; the two sets of casting half pipes at the corresponding position can be combined when the combined casting mold enters the locking driving area; when the casting half pipe moves in the locking driving area, the locking assembly can be locked as a whole by the locking driving rod.

[0009] Preferably, the circulating conveying mechanism comprises a mounting base plate, a driving chain movably arranged on the mounting base plate and used for driving the combined casting mold to move, a guide ring track fixedly installed on the mounting base plate and used for limiting the position of the combined casting mold, and a servo motor used for providing power for the rotation of the driving chain.

[0010] Preferably, the guide ring rail is annular as a whole, close to the locking drive area and the casting area, and avoidance areas are provided at the front end of the locking drive area and the rear end of the casting area, and the positions overlapping with the locking drive area and the casting area are.

[0011] Preferably, the combined casting mold further comprises a clamping roller frame, which is fixedly mounted on a side of the casting half-tube close to the guide ring rail, and the clamping roller frame is clamped on the guide ring rail.

[0012] Preferably, the combined casting mold further comprises a connecting arm, which is fixedly mounted on one side of the casting half-tube close to the drive chain. The connecting arm is retractable and can adaptively retract when the casting half-tube moves to an avoidance area or position.

[0013] Preferably, the portion of the front end of the locking drive rod that overlaps with the locking drive area is the rack area, and the portion that overlaps with the casting area is the limiting area.

[0014] Preferably, the locking assembly includes an arc-shaped clamping seat, an arc-shaped locking arm clamped inside the arc-shaped clamping seat, a positioning arc-shaped rod fixedly installed inside the arc-shaped clamping seat, and a return spring movably sleeved on the outside of the positioning arc-shaped rod. Preferably, the outer side of the arc-shaped clamping seat is provided with an external driving tooth that cooperates with the rack area. When the casting half pipe moves in the locking drive area, the external driving tooth is driven by the rack area, which enables the arc-shaped locking arm to be clamped to the outside of another group of casting half pipes.

[0015] In the above technical scheme, the beneficial effects of the present invention are as follows: two sets of circulating conveying mechanisms are controlled by the control system to drive the combined casting mold to move in a circular motion, and the combined casting molds at corresponding positions can be combined into a complete whole during the movement process for use in casting aluminum alloy rods. After casting, the combined combined casting molds are separated again, so that the formed aluminum alloy rods can be demolded, thereby realizing continuous casting of the aluminum alloy rods, which can greatly improve the efficiency of the casting operation; when the combined casting mold enters the locking drive area, the locking assembly is driven by the locking drive rod to lock the combined casting half-tube, thereby avoiding misalignment after the casting half-tubes are combined, ensuring the accuracy of the casting mold, and thereby improving the quality of the casting.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0017] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention after overall assembly; Figure 2 It is a schematic structural diagram of the present invention from a top view as a whole; Figure 3 It is a schematic structural diagram of the overall front view of the present invention; Figure 4 It is a structural schematic diagram of the cooperation between two sets of circulating conveying mechanisms and a combined casting mold of the present invention; Figure 5 This is a schematic structural diagram of the combined casting mold and the guide ring rail of the present invention; Figure 6 It is a schematic structural diagram of the combined casting mold of the present invention; Figure 7 It is a structural diagram of the cooperation between the guide ring rail and the clamping roller frame of the present invention; Figure 8 This is a schematic structural diagram of the locking assembly and the locking drive rod of the present invention when they are initially engaged; Figure 9 This is a schematic structural diagram of the present invention when the locking assembly cooperates with the locking drive rod to transition from the rack area to the limiting area; Figure 10 It is a schematic structural diagram of the entire locking assembly of the present invention; Figure 11 Schematic diagram of the cross-section of the arc-shaped clamping seat and the arc-shaped locking arm of the present invention; Figure 12 This is a schematic diagram of the structure of the arc-shaped clamping seat and the arc-shaped locking arm exploded as a whole according to the present invention; Figure 13 This is a structural schematic diagram of the installation position of the transmission gear set and the demoulding ejector of the present invention; Figure 14 It is a schematic structural diagram of the cooperation between the transmission gear set and the demoulding ejector of the present invention.

[0020] Description of reference numerals: In the figure: 1. Install the rack; 2. Circular conveying mechanism; 21. Mounting base plate; 22. Drive shaft; 23. Drive sprocket; 24. Drive chain; 25. Guide rail; 26. Avoidance area; 27. Limiting area; 28. Servo motor; 3. Combined casting mold; 31. Casting half pipe; 32, locking assembly; 321, arc-shaped clamping seat; 322, arc-shaped locking arm; 323, outer driving tooth; 324, positioning arc-shaped rod; 325, return spring; 326, limiting pin shaft; 327, inner driving tooth; 328, transmission gear set; 329, demolding top piece; 3210, arc-shaped groove; 33, clamping roller frame; 34, connecting arm; 35, locking drive rod; 351, rack area; 352, limiting area. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort fall within the scope of protection of the present disclosure.

[0022] Please refer to Figures 1-14 The embodiments of the present application provide a technical scheme: A high-strength cast aluminum alloy, the mass percentage of each component of the high-strength cast aluminum alloy is: manganese 3.0-4.5%, iron 2.2-3.3%, copper 1.1-2.5%, zinc 0.4-0.8%, magnesium 1-2%, silicon 0.05-0.07%, nickel 0.23-0.30%, cerium 0.20-0.35%, chromium 0.07-0.012%, vanadium 0.05-0.06%, cadmium 0.02-0.03%, titanium 0.02-0.05%, boron 0.06-0.1%, zirconium 0.01-0.03%, and the balance is aluminum.

[0023] A casting process of a high-strength cast aluminum alloy, comprising the following steps: Step one: material melting: put pure aluminum or recycled aluminum material into a melting device, and melt the material at 720-740℃; Step two: continuous casting: transfer the molten material to a casting machine, and cooperate the casting machine with the continuous casting equipment to cast the molten material into an aluminum alloy rod; Step three: surface treatment: polishing and polishing the cast aluminum alloy rod to remove burrs and oxide layers; Step four: detection: detecting the appearance size of the aluminum alloy rod by a detection device.

[0024] A casting device used in a casting process for high-strength cast aluminum alloy comprises two sets of symmetrically arranged circulating conveying mechanisms 2, and a combined casting mold 3 is arranged in an annular distribution on the circulating conveying mechanisms 2; a locking drive area and a casting area can be formed between the two sets of circulating conveying mechanisms 2; Figure 2 As shown, the two groups of rectangular dotted boxes from front to back are the locking drive area and the casting area respectively; The combined casting mold 3 includes a casting half-tube 31, a locking assembly 32 provided on the casting half-tube 31, and a locking drive rod 35 cooperating with the locking assembly 32; Driven by the circulating conveying mechanism 2, the combined casting mold 3 can circulate through the locking drive area and the casting area; after the combined casting mold 3 enters the locking drive area, the two groups of casting half-tubes 31 at corresponding positions can be combined; when the casting half-tubes 31 move in the locking drive area, the locking assembly 32 is driven by the locking drive rod 35 to lock the two combined groups of casting half-tubes 31 into a whole.

[0025] Specifically, the servo motors 28 in the two groups of circulating conveying mechanisms 2 are controlled by the servo system in the prior art, driving the drive chain 24 to rotate intermittently, and then driving the combined casting mold 3 to move in the locking drive area and the casting area in a cyclic manner; when the combined casting mold 3 at the corresponding position moves to the locking drive area, the two groups of combined casting molds 3 at the corresponding position are combined, and in the process of continuous movement, the locking drive rod 35 drives the locking assembly 32 to lock the two groups of casting half-tubes 31; when the two combined groups of casting half-tubes 31 are initially moved to the casting area, the molten material is cast into the combined casting half-tube 31 through the casting equipment in the prior art; the casting half-tube 31 after casting the molten material is cooled during the continuous movement in the casting area; when the combined casting mold 3 leaves the casting area, the combined casting half-tube 31 is separated again, and the formed aluminum alloy rod is demolded.

[0026] Compared with the prior art, the embodiment of the present invention proposes a high-strength cast aluminum alloy, a casting process and a casting equipment. Two sets of circulating conveying mechanisms 2 are controlled by a control system to drive the combined casting mold 3 to move in a circular motion, and the combined casting molds 3 at corresponding positions can be combined into a complete whole during the movement for use in casting aluminum alloy rods. After casting, the combined combined casting mold 3 is separated again, so that the formed aluminum alloy rods can be demolded, thereby realizing continuous casting of the aluminum alloy rods, which can greatly improve the efficiency of the casting operation; when the combined casting mold 3 enters the locking drive area, the locking assembly 32 is driven by the locking drive rod 35 to lock the combined casting half-tube 31, thereby avoiding misalignment of the casting half-tube 31 after the combination, ensuring the accuracy of the casting mold, and thereby improving the quality of the casting.

[0027] As a preferred technical solution of the embodiment, the circulating conveying mechanism 2 comprises a mounting base plate 21; a driving chain 24 movably arranged on the mounting base plate 21 and used to drive the combined casting mold 3 to move; a guide ring track 25 fixedly arranged on the mounting base plate 21 and used to limit the position of the combined casting mold 3; and a servo motor 28 used to provide power for the rotation of the driving chain 24. Specifically, the casting equipment further comprises a mounting rack 1, the mounting base plate 21 is fixedly arranged in the mounting rack 1, and the servo motor 28 is fixedly arranged on the top of the mounting rack 1. The number of the driving chains 24 in one set of the circulating conveying mechanism 2 is two, which are mirror images arranged on the upper and lower sides of the mounting base plate 21. A plurality of transmission shafts 22 are movably arranged on the mounting base plate 21, and driving sprockets 23 are fixedly sleeved on both ends of the transmission shafts 22. The driving chains 24 are meshingly sleeved on the outside of the driving sprockets 23. The output shaft of the servo motor 28 is fixedly connected with the transmission shaft 22 at either end, and the transmission shaft 22, the driving sprocket 23 and the driving chain 24 are driven to rotate by the servo motor 28, so as to adjust the position of the combined casting mold 3.

[0028] As a preferred technical solution of the embodiment, the guide ring track 25 is annular as a whole, and the positions of the two ends of the guide ring track 25 near the locking driving area and the casting area are provided with avoiding areas 26. The positions of the guide ring track 25 overlapping with the locking driving area and the casting area are 27. It should be noted that when the two sets of circulating conveying mechanisms 2 drive the combined casting mold 3 to initially enter the locking driving area, if the two ends of the guide ring track 25 are provided with U-shaped structures, the two sets of combined casting molds 3 at the corresponding positions are prone to interference. Therefore, the avoiding areas 26 are arranged at the two ends of the guide ring track 25, so as to avoid the interference of the combined casting molds 3 at the corresponding positions and ensure that the combined casting molds 3 at the corresponding positions can be smoothly combined, as shown in Figure 5

[0029] As a preferred technical solution of the embodiment, the combined casting mold 3 further comprises a clamping roller frame 33 fixedly arranged on one side of the casting half pipe 31 near the guide ring track 25 and clamped on the guide ring track 25. Specifically, the clamping roller frame 33 clamped on the guide ring track 25 can limit the position of the casting half pipe 31 and ensure the stability of the casting half pipe 31 in the vertical direction and the stability of the casting half pipe 31 during movement.

[0030] ​As a preferred technical solution of the embodiment, the combined casting mold 3 further comprises a connecting arm 34 fixedly installed on one side of the casting half pipe 31 close to the driving chain 24, the connecting arm 34 is in a telescopic form, and when the casting half pipe 31 moves to the positions of the avoiding areas 26 and 27, the connecting arm 34 can be telescoped adaptively, specifically, the driving chain 24 is provided with a connecting claw matched with the connecting arm 34, one end of the connecting arm 34 is fixedly connected with the connecting claw, and the other end is fixedly connected with the casting half pipe 31, and the driving chain 24 can drive the casting half pipe 31 to move when rotating through the transmission of the connecting arm 34; it should be noted that when the casting half pipe 31 moves to the positions of the avoiding areas 26 and 27, the distance between the casting half pipe 31 and the driving chain 24 will change, therefore, the connecting arm 34 is set in a telescopic form, and when the casting half pipe 31 moves to different positions of the guide ring track 25, the connecting arm 34 can be telescoped adaptively.

[0031] As can be seen from the above embodiment, the two groups of circulating conveying mechanisms 2 are independently driven, although they are controlled by a servo system, but are affected by the mechanical structure such as the tension of the driving chain 24, and after the combined casting half pipe 31 of the two groups is combined, there will still be a position deviation in the front-back direction, which leads to poor position matching precision of the combined casting half pipe 31, in order to ensure the precision of the aluminum alloy rod casting, the following embodiment is proposed to solve the above problems.

[0032] In another embodiment provided by the application, the part of the front end of the locking driving rod 35 coinciding with the locking driving area is a rack area 351, and the part coinciding with the casting area is a limiting area 352, specifically, when the casting half pipe 31 moves to the locking driving area and moves therein, the rack area 351 can drive the locking assembly 32 to lock the combined two groups of casting half pipes 31, and since the locking assembly 32 is driven to move along an arc, the difference in the front-back direction of the combined two groups of casting half pipes 31 can be forcibly eliminated, thereby ensuring the precision of the casting; after the locking assembly 32 locks the casting half pipe 31, the limiting area 352 is used to limit the combined casting half pipe 31 in the casting area to be always in a locked state; as shown in Figure 9 When the outer driving tooth 323 is driven by the rack area 351, the teeth at the end can abut against the limiting area 352, and when the casting half pipe 31 drives the locking assembly 32 to move in the casting area, the teeth at the end are limited by the limiting area 352, which can limit the reset of the arc-shaped locking arm 322, thereby achieving firm locking of the combined casting half pipe 31.

[0033] As a preferred technical solution of the embodiment, the locking assembly 32 comprises an arc-shaped clamping seat 321, an arc-shaped locking arm 322 clamped inside the arc-shaped clamping seat 321, a positioning arc-shaped rod 324 fixedly installed inside the arc-shaped clamping seat 321, a reset spring 325 movably sleeved outside the positioning arc-shaped rod 324, and an outer driving tooth 323 provided on the outer side of the arc-shaped clamping seat 321 and matched with the rack area 351. When the cast half pipe 31 moves in the locking driving area, the outer driving tooth 323 is driven by the rack area 351, so that the arc-shaped locking arm 322 is clamped to the outside of the other group of cast half pipes 31. It should be noted that when the cast half pipe 31 and the locking assembly 32 move, the rack area 351 matched with the outer driving tooth 323 can drive the arc-shaped locking arm 322 to rotate around the axis of the cast half pipe 31. If two groups of locking driving rods 35 are arranged to match with the locking assemblies 32 on the cast half pipes 31 on both sides, the rotating directions of the locking assemblies 32 on the cast half pipes 31 on both sides conflict with each other. Therefore, only one group of locking driving rods 35 is arranged to drive the locking assembly 32 on one side of the cast half pipe 31 to act. When the arc-shaped locking arm 322 in the locking assembly 32 is driven to rotate, the arc-shaped locking arm 322 can be inserted into the arc-shaped clamping seat 321 of the other group of locking assemblies 32 in the rotating process, so as to drive the arc-shaped locking arm 322 in the other group of locking assemblies 32 to act. The two groups of arc-shaped locking arms 322 realize firm locking of the combined cast half pipe 31. The front end of the arc-shaped locking arm 322 in the moving direction is provided with an outwardly inclined arc-shaped head. Since there is a positional deviation in the front-rear direction of the combined cast half pipe 31, the front end of the arc-shaped locking arm 322 is provided with the arc-shaped head, so that the arc-shaped locking arm 322 is easily inserted into the other group of arc-shaped clamping seats 321 during movement. The arc-shaped locking arm 322 is driven by the rack area 351 to move against the elastic force of the reset spring 325. When the cast half pipe 31 and the locking assembly 32 are separated from the limiting area 352, the reset spring 325 applies an elastic force to the arc-shaped locking arm 322, so that the arc-shaped locking arm 322 is reset to contact and lock the combined cast half pipe 31, thereby facilitating separation and demolding of the combined cast half pipe 31. The position of the reset spring 325 is limited by the positioning arc-shaped rod 324, so that the reset spring 325 can stably apply an elastic force to the arc-shaped locking arm 322. The front end of the arc-shaped locking arm 322 in the moving direction is inserted into a limiting pin shaft 326, which is used to limit the position of the arc-shaped locking arm 322 during resetting. The arc-shaped clamping seat 321 in one group of locking assemblies 32 is provided with a sliding groove matched with the limiting pin shaft 326 in the other group of locking assemblies 32. The inner side surface of the arc-shaped locking arm 322 is provided with an arc-shaped groove 3210 matched with the positioning arc-shaped rod 324 and the reset spring 325.

[0034] From the above embodiments, the combined casting half pipe 31 can be separated again after leaving the limiting area 352 and the casting area, but the formed aluminum alloy rod is also easy to adhere to the inner wall of any casting half pipe 31. In order to facilitate the demolding of the formed aluminum alloy rod, the following embodiments are proposed to solve the above problems.

[0035] In yet another embodiment of the present application, the inner side of the arc-shaped clamping seat 321 movably installs a transmission gear set 328, the inner side of the arc-shaped locking arm 322 is provided with an inner drive tooth 327 matched with the transmission gear set 328, and the casting half pipe 31 clamps a demolding top piece 329, and the demolding top piece 329 and the arc-shaped locking arm 322 are in transmission connection. Specifically, the transmission gear set 328 and the inner drive tooth 327 and the demolding top piece 329 are all in meshing connection. When the arc-shaped locking arm 322 is driven to rotate, the inner drive tooth 327 can drive the transmission gear set 328 to rotate, and then drive the demolding top piece 329 to move, so that the one end of the demolding top piece 329 located inside the casting half pipe 31 retracts into the inner wall of the casting half pipe 31, and after the arc-shaped locking arm 322 moves to the position, the one end of the demolding top piece 329 located inside the casting half pipe 31 can be completely retracted into the inner wall of the casting half pipe 31. After the casting half pipe 31 and the locking assembly 32 leave the limiting area 352 and the casting area, the arc-shaped locking arm 322 is reset by the elastic force of the reset spring 325, which can drive the demolding top piece 329 to extend to the inner wall of the casting half pipe 31, so as to separate the aluminum alloy rod adhered to the inner wall of the casting half pipe 31 from the casting half pipe 31, facilitating the demolding of the aluminum alloy rod. The one end of the demolding top piece 329 located inside the casting half pipe 31 is arc-shaped, and the curvature is the same as that of the inner wall of the casting half pipe 31, so as to avoid affecting the casting quality of the surface of the aluminum alloy rod. It should be noted that after the one end of the demolding top piece 329 located inside the casting half pipe 31 retracts into the inner wall of the casting half pipe 31, it is in contact with the inner wall of the casting half pipe 31, and the gap is small. The casting equipment adopts low-pressure casting, and the molten aluminum alloy liquid will not penetrate into the gap between the demolding top piece 329 and the inner wall of the casting half pipe 31. It should be noted that in order to improve the locking effect of the combined casting half pipe 31, multiple locking assemblies 32 can be arranged in parallel in the vertical direction of the casting half pipe 31, and multiple demolding top pieces 329 can be arranged in parallel in the multiple locking assemblies 32, so as to drive the formed aluminum alloy rod from multiple positions. It should be noted that when the casting equipment has multiple demolding top pieces 329, the length of the part matched with the transmission gear set 328 increases from bottom to top, so that the formed aluminum alloy rod can be separated from the casting half pipe 31 in an inclined posture by the cooperation of multiple demolding top pieces 329, further facilitating the demolding of the formed aluminum alloy rod from the casting half pipe 31.

[0036] The foregoing merely illustrates some exemplary embodiments of the application, and no doubt numerous modifications and alterations thereto will be apparent to those skilled in the art. Accordingly, the above description is intended for purposes of illustration only and should not be construed as limiting the scope of the application.

Claims

1. A high-strength cast aluminum alloy, characterized in that: The mass percentages of the components of the high-strength cast aluminum alloy are: 3.0-4.5% manganese, 2.2-3.3% iron, 1.1-2.5% copper, 0.4-0.8% zinc, 1-2% magnesium, 0.05-0.07% silicon, 0.23-0.30% nickel, 0.20-0.35% cerium, 0.07-0.012% chromium, 0.05-0.06% vanadium, 0.02-0.03% cadmium, 0.02-0.05% titanium, 0.06-0.1% boron, 0.01-0.03% zirconium, and the balance is aluminum.

2. The casting process of a high-strength cast aluminum alloy according to claim 1, characterized in that: The following steps are involved: Step 1: Material melting: pure aluminum or recycled aluminum material is put into the melting equipment and melted at 720-740℃; Step 2: Continuous casting: The molten material is transferred to a casting machine, and the casting machine cooperates with the continuous casting equipment to cast the molten material into aluminum alloy rods; Step 3: Surface treatment: Grind and polish the cast aluminum alloy rod to remove burrs and oxide layers; Step 4: Inspection: Use inspection equipment to inspect the appearance and dimensions of the aluminum alloy rod.

3. The casting equipment used in the casting process of a high-strength cast aluminum alloy according to claim 2, characterized in that: It comprises two sets of symmetrically arranged circulating conveying mechanisms (2), and combined casting molds (3) are arranged in an annular distribution on the circulating conveying mechanisms (2); a locking drive area and a casting area that can be connected in a first position can be formed between the two sets of circulating conveying mechanisms (2); The combined casting mold (3) comprises a casting half-tube (31), a locking assembly (32) arranged on the casting half-tube (31), and a locking drive rod (35) cooperating with the locking assembly (32); The combined casting mold (3) can circulate through the locking drive area and the casting area under the drive of the circulating conveying mechanism (2); after the combined casting mold (3) enters the locking drive area, the two groups of casting half-tubes (31) at corresponding positions can be combined; when the casting half-tubes (31) move in the locking drive area, the locking assembly (32) is driven by the locking drive rod (35) to lock the combined two groups of casting half-tubes (31) into a whole.

4. The casting equipment used in the casting process of the high-strength cast aluminum alloy according to claim 3, characterized in that: The circulating conveying mechanism (2) comprises a mounting base (21); a driving chain (24) movably arranged on the mounting base (21) for driving the combined casting mold (3) to move; a guide ring rail (25) fixedly mounted on the mounting base (21) for limiting the position of the combined casting mold (3); and a servo motor (28) for providing power for the driving chain (24) to rotate.

5. The casting equipment used in the casting process of the high-strength cast aluminum alloy according to claim 4, characterized in that: The guide ring rail (25) is annular as a whole, close to the locking drive area and the casting area, and is provided with an avoidance area (26) at the front end of the locking drive area and the rear end of the casting area, and the position overlapping with the locking drive area and the casting area is (27).

6. The casting equipment used in the casting process of the high-strength cast aluminum alloy according to claim 4, characterized in that: The combined casting mold (3) further comprises a clamping roller frame (33), which is fixedly mounted on a side of the casting half pipe (31) close to the guide ring rail (25), and the clamping roller frame (33) is clamped on the guide ring rail (25).

7. The casting equipment used in the casting process of the high-strength cast aluminum alloy according to claim 5, characterized in that: The combined casting mold (3) further comprises a connecting arm (34), which is fixedly mounted on a side of the casting half-tube (31) close to the drive chain (24); the connecting arm (34) is retractable, and when the casting half-tube (31) moves to the avoidance area (26), (27), the connecting arm (34) can be adaptively retracted.

8. The casting equipment used in the casting process of the high-strength cast aluminum alloy according to claim 3, characterized in that: The portion of the front end of the locking drive rod (35) that overlaps with the locking drive area is the rack area (351), and the portion that overlaps with the casting area is the limiting area (352).

9. The casting equipment used in the casting process of the high-strength cast aluminum alloy according to claim 8, characterized in that: The locking assembly (32) includes an arc-shaped clamping seat (321), an arc-shaped locking arm (322) clamped inside the arc-shaped clamping seat (321), a positioning arc-shaped rod (324) fixedly installed inside the arc-shaped clamping seat (321), and a return spring (325) movably sleeved on the outside of the positioning arc-shaped rod (324).

10. The casting equipment used in the casting process of the high-strength cast aluminum alloy according to claim 9, characterized in that: The outer side of the arc-shaped clamping seat (321) is provided with an external driving tooth (323) that cooperates with the rack area (351). When the casting half-tube (31) moves in the locking driving area, the external driving tooth (323) is driven by the rack area (351), so that the arc-shaped locking arm (322) can be clamped to the outside of another group of casting half-tubes (31).

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