Aluminum bar casting water blowing device and aluminum bar casting system using the same

Abstract

The application relates to the technical field of aluminum bar casting, in particular to an aluminum bar casting water blowing device and an aluminum bar casting system applied thereto. The aluminum bar casting water blowing device comprises a water scraping assembly, which comprises a water scraping plate arranged at the outlet of a crystallizer and abutting against the side surface of a cast bar at one end; and a water blowing assembly, which comprises a water blowing pipeline and a gas source providing end. One end of the water blowing pipeline is a gas passage, the gas passage is located below the water scraping plate, and the gas passage blows gas towards the position below the abutting position of the water scraping plate and the cast bar. The other end of the water blowing pipeline is connected with the gas source providing end. The technical problem that the surface of the cast bar is cracked and the product is scrapped due to water leakage during the water scraping process of the existing water scraping plate is solved.

Description

Technical Field

[0001] This application relates to the field of aluminum rod casting technology, and in particular to an aluminum rod casting water blowing device and an aluminum rod casting system for application. Background Technology

[0002] Currently, in the casting of high-strength and ultra-high-strength aluminum alloy rods for aviation, aerospace, and marine applications, the inability to completely remove the cooling water after crystallization and completely isolate it from the ingot makes the ingot extremely prone to cracking, even making casting impossible, or causing aluminum leakage due to cracking. This poses a great threat to safe production and also has a significant negative impact on product quality.

[0003] Generally, casting of 1-series, 3-series, and 6-series soft aluminum alloys does not require the removal of cooling water after crystallization. However, for 2-series high-magnesium, 5-series, and 7-series, especially 7-series super-hard aluminum alloys, particularly large-scale 7-series super-hard aluminum alloys, the cooling water after crystallization must be removed.

[0004] Existing technologies generally use a squeegee to solve this problem. However, due to the uneven surface of the crystallized aluminum rod, water leakage can occur during the squeegee's operation. This leakage causes a localized drop in the surface temperature of the aluminum rod, which in turn generates tensile stress in other areas with higher temperatures. When the tensile stress exceeds the tensile strength of the alloy, surface cracking will occur, resulting in product scrapping and potentially causing personal injury and equipment damage. Utility Model Content

[0005] The purpose of this application is to provide a water blowing device for aluminum rod casting and an aluminum rod casting system thereof, so as to solve the technical problem that water leakage during the existing scraping process causes the surface of the cast rod to crack, resulting in product scrap.

[0006] In a first aspect, this application provides a water blowing device for aluminum rod casting, comprising: A scraper assembly, comprising a scraper blade disposed at the crystallizer outlet and having one end abutting against the side surface of the casting rod; and A water blowing assembly includes a water blowing pipe and an air source supply end. One end of the water blowing pipe is a vent hole located below the scraper blade and blowing air downwards towards the point where the scraper blade abuts against the casting rod. The other end of the water blowing pipe is connected to the air source supply end.

[0007] Furthermore, the water blowing pipe is horizontally arranged, and the distance between the vent hole and the side surface of the casting rod is 5~50mm.

[0008] Furthermore, the gas source supply end is configured as an air compressor or a hot air blower, providing high-pressure gas with a pressure of 9 Pa, a temperature of 200 °C, and a flow rate of 0.5 cubic meters per minute.

[0009] Furthermore, a control valve is provided between the gas supply end and the water blowing pipe.

[0010] Furthermore, the scraper assembly also includes a water-catching plate and a drain pipe connected to the water-catching plate, the water-catching plate being disposed at the end of the scraper blade away from the casting rod.

[0011] Furthermore, the scraper blade is inclined, and a connecting end plate extends horizontally from the end of the scraper blade away from the casting rod; The wiper assembly also includes a pressure plate and a pressure plate bolt, wherein the pressure plate is fixedly connected to the connecting end plate of the wiper blade by the pressure plate bolt.

[0012] Furthermore, the aluminum rod casting water blowing device also includes a support frame, the water intercepting plate is fixedly mounted on the support frame, and the pressure plate bolt passes through the pressure plate and the connecting end plate in sequence and is fixedly connected to the support frame.

[0013] Furthermore, the aluminum rod casting blower also includes an anti-tipping structure mounted on the support frame. The anti-tipping structure is a weight bar or weight block with the same or similar weight as the pressure plate and the scraper. One side of the support frame is used to connect and fix to the connecting end plate of the scraper, and the other side of the support frame is provided with the anti-tipping structure.

[0014] Furthermore, the aluminum rod casting water blowing device is provided with one or more sets of aluminum rod casting water blowing devices, and the multiple sets of aluminum rod casting water blowing devices are arranged sequentially and at intervals along the outer peripheral surface of the casting rod.

[0015] Secondly, this application provides an aluminum rod casting system, including the aluminum rod casting water blowing device described in any of the preceding descriptions, and the aluminum rod casting system further includes a heat insulation cap, an adapter plate, a graphite ring, and a crystallizer.

[0016] Compared with the prior art, the aluminum rod casting water blowing device and the aluminum rod casting system applied in this application include a water scraping assembly and a water blowing assembly. The water scraping assembly includes a water scraper at the crystallizer outlet with one end abutting against the side surface of the casting rod. The water scraper removes the cooling water after crystallization, solving the problem of the casting rod easily cracking under rapid cooling. At the same time, a water blowing pipe is set below the water scraper. One end of the water blowing pipe is a vent hole located below the water scraper and blowing air downwards towards the point where the water scraper abuts against the casting rod. The other end of the water blowing pipe is connected to an air source supply end to provide air for blowing. The air blowing through the vent hole dries or blows away the water leaking below the water scraper from the surface of the casting rod, thereby solving the problem of water leakage below during the water scraping process, which causes the surface of the casting rod to crack, resulting in product scrapping or even personal injury and equipment damage. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the aluminum rod casting system provided in the embodiments of this application; Figure 2 This is a schematic diagram of the aluminum rod casting water blowing device provided in the embodiments of this application.

[0019] Figure label: 11-Water blowing pipe; 111 - Vent hole; 12 - Gas supply end; 13-Control valve; 21-Wiper blade; 211-Connecting end plate; 22-Drainage pipe; 231-Pressure plate; 232-Pressure plate bolt; 24-Support frame; 25 - Anti-rollover structure; 31-Cooling water; 32 - The squeegee is leaking water; 33 - The water flow blown away; 34-Hot and cold gases; 41- Cast rod; 42-Cavity; 51-Insulated Cap; 52-Adapter board; 53-Graphite ring; 54-Crystallizer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] like Figure 1 and Figure 2As shown, this application provides an aluminum rod casting water blowing device and an aluminum rod casting system using the aluminum rod casting water blowing device to solve the problem that in the aluminum rod casting process, the cooling water after crystallization cannot be completely removed and is completely isolated from the ingot, which makes the ingot prone to cracking, or even unable to be cast, or causes aluminum leakage due to cracking. It also solves the problem that when using a scraper to scrape water, the scraper leaks water, causing the surface temperature of the aluminum rod to drop locally. Under the action of other parts with higher temperatures, tensile stress is generated. When the tensile stress exceeds its tensile strength, surface cracking will occur, which not only causes product scrapping, but may also cause personal injury and equipment damage.

[0028] like Figure 2 As shown, the aluminum rod casting water blowing device provided in this application embodiment includes a scraper assembly, which includes at least a scraper 21 disposed at the outlet of the crystallizer 54 and abutting one end against the side surface of the casting rod 41; and a water blowing assembly, which includes at least a water blowing pipe 11 and an air source supply end 12. One end of the water blowing pipe 11 is a vent 111, which is located below the scraper 21 and blows air downwards towards the point where the scraper 21 abuts against the casting rod 41. The other end of the water blowing pipe 11 is connected to the air source supply end 12.

[0029] Compared with the prior art, the aluminum rod casting water blowing device and the aluminum rod casting system provided in this application embodiment include a water scraping assembly and a water blowing assembly. The water scraping assembly includes a water scraper 21 at the outlet of the crystallizer 54 and one end of which abuts against the side surface of the casting rod 41. The water scraper 21 removes the cooling water 31 after crystallization, and the water can be discharged through the drain pipe 22 connected to the water scraper 21, which solves the problem that the casting rod 41 is prone to cracking under the rapid cooling of the cooling water 31.

[0030] Meanwhile, a water blowing pipe 11 is provided below the scraper 21. One end of the water blowing pipe 11 is a vent 111, which is located below the scraper 21 and blows air downwards towards the point where the scraper 21 abuts against the casting rod 41. The other end of the water blowing pipe 11 is connected to the air source supply end 12 to provide air for blowing. The air blown through the vent 111 (hot and cold air 34 as shown in the figure) dries or blows away the water leaking below the scraper 21 (water leakage 32 as shown in the figure) from the surface of the casting rod 41, as shown by the water flow 33 as shown in the figure. This keeps the surface of the casting rod 41 that has passed through the scraper 21 dry and at a suitable temperature, and makes the surface temperature of the casting rod 41 uniform, thereby reducing tensile stress and avoiding surface cracking, product scrapping, personal injury and equipment damage. This effectively ensures the production quality of the casting rod 41 and the safety of personnel and equipment during the casting process.

[0031] Furthermore, it is preferable that the aforementioned water blowing pipe 11 is set horizontally so that the gas is blown out at a horizontal angle, thereby improving the blowing effect.

[0032] Furthermore, it is preferable that the distance between the vent hole 111 of the water blowing pipe 11 and the side surface of the casting rod 41 is between 5 and 50 mm, preferably 20 mm, so as to achieve a better blowing effect without adversely affecting the surface of the casting rod 41.

[0033] In one specific embodiment, the aforementioned air source supply end 12 can be configured as an air compressor or hot air blower, etc., to generate high-pressure hot and cold gas to provide hot and cold gas to the aforementioned water blowing pipe 11.

[0034] Specifically, it can provide high-pressure hot and cold gas with a wind pressure of 9 Pa, a wind temperature of 200℃, and an air volume of 0.5 cubic meters per minute to provide hot and cold gas to the water blowing pipe 11, and evenly blow away water leakage and other non-leaking parts. This effectively solves the adverse effects of water leakage from the scraper 21, and successfully casts the 7-series casting rod 41 with a diameter of 995 mm.

[0035] like Figure 1 and Figure 2 As shown, a control valve 13 may be provided between the aforementioned gas supply end 12 and the water blowing pipe 11 to achieve effective control of start / stop, air pressure, air temperature and air volume.

[0036] A preferred embodiment is, as follows: Figure 1 and Figure 2 As shown in the embodiment of this application, the scraper assembly of the aluminum rod casting water blowing device may further include a support frame 24, a water intercepting plate fixedly mounted on the support frame 24, and a drain pipe 22 connected to the water intercepting plate. The water intercepting plate is located at the end of the scraper 21 away from the casting rod 41. Thus, water overflowing from the end of the scraper 21 away from the casting rod 41 can be stored in the water intercepting plate first, and then discharged through the drain pipe 22 connected to it.

[0037] Another preferred embodiment is, as follows: Figure 2 As shown, the wiper blade 21 is inclined, and a connecting end plate 211 extends horizontally from the end of the wiper blade 21 away from the casting rod 41. The wiper assembly may also include a pressure plate 231 and a pressure plate bolt 232. The pressure plate 231 can be fixedly connected to the connecting end plate 211 of the wiper blade 21 by the pressure plate bolt 232 to press and fix the wiper blade 21. Specifically, the pressure plate bolt 232 can pass through the pressure plate 231 and the connecting end plate 211 in sequence and be fixedly connected to the aforementioned support frame 24.

[0038] An alternative embodiment is, as follows: Figure 2As shown, the aluminum rod casting blower provided in this application embodiment may further include an anti-tipping structure 25 disposed on the aforementioned support frame 24. The anti-tipping structure 25 may specifically be a weight rod or weight block with the same or similar weight as the pressure plate 231 and the scraper 21. One side of the support frame 24 may be used to connect and fix it to the connecting end plate 211 of the scraper 21. In order to prevent the support frame 24 from tipping over, the other side of the support frame 24 may be provided with the anti-tipping structure 25 to balance the weight and maintain the balance and stability of the support frame 24.

[0039] A more preferred embodiment is, as follows: Figure 1 As shown, one or more sets of the aforementioned aluminum rod casting water blowing devices can be provided. When multiple sets are provided, the multiple sets of aluminum rod casting water blowing devices are arranged sequentially and at intervals along the outer peripheral surface of the casting rod 41. The specific number and interval distance are determined according to actual needs.

[0040] like Figure 1 As shown, the aluminum rod casting system provided in this application includes the aluminum rod casting water blowing device described in any of the foregoing embodiments. The aluminum rod casting system also includes a heat insulation cap 51, an adapter plate 52, a graphite ring 53, and a crystallizer 54.

[0041] The specific casting process of the aluminum rod casting system can be as follows: the molten aluminum in the liquid cavity 42 is cooled once in the casting fixture device composed of the heat preservation cap 51, the adapter plate 52, the graphite ring 53 and the crystallizer 54, and then the cast rod 41 is formed under the secondary cooling of the cooling water 31 sprayed out of the crystallizer 54.

[0042] In order to prevent the casting rod 41 from cracking under the rapid cooling of the cooling water 31, a scraper 21 is set to scrape water from it, thereby reducing the risk of cracking. However, due to the uneven surface of the crystallized casting rod 41, a small gap is formed between it and the scraper 21, resulting in water leakage 32 from the scraper, which will cause the casting rod 41 to crack.

[0043] To solve the problem of water leakage from the scraper 32, high-pressure gas generated by the air source supply end 12 is supplied to the water blowing pipe 11 through the control valve 13 and blown onto the casting rod 41 through the vent 111 at one end, thereby blowing the water leakage from the scraper 32 away from the casting rod 41, thus eliminating the risk of cracking of the casting rod 41 caused by water leakage from the scraper 21 and ensuring the production quality of casting rod 41.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A water blowing device for aluminum rod casting, characterized in that, include: A scraper assembly, comprising a scraper blade disposed at the outlet of the crystallizer and with one end abutting against the side surface of the casting rod; and A water blowing assembly includes a water blowing pipe and an air source supply end. One end of the water blowing pipe is a vent hole located below the scraper blade and blowing air downwards towards the point where the scraper blade abuts against the casting rod. The other end of the water blowing pipe is connected to the air source supply end.

2. The aluminum rod casting water blowing device according to claim 1, characterized in that, The water blowing pipe is set horizontally, and the distance between the vent hole and the side surface of the casting rod is 5~50mm.

3. The aluminum rod casting water blowing device according to claim 1 or 2, characterized in that, The gas source supply end is set as an air compressor or hot air blower, providing high-pressure gas with a pressure of 9 Pa, a temperature of 200 °C, and a flow rate of 0.5 cubic meters per minute.

4. The aluminum rod casting water blowing device according to claim 3, characterized in that, A control valve is provided between the gas source supply end and the water blowing pipe.

5. The aluminum rod casting water blowing device according to claim 1, characterized in that, The scraper assembly also includes a water-catching plate and a drain pipe connected to the water-catching plate, wherein the water-catching plate is located on the side of the scraper blade away from the casting rod.

6. The aluminum rod casting water blowing device according to claim 5, characterized in that, The scraper blade is inclined, and a connecting end plate is provided on the side of the scraper blade away from the casting rod in a horizontal direction; The wiper assembly also includes a pressure plate and a pressure plate bolt, wherein the pressure plate is fixedly connected to the connecting end plate of the wiper blade by the pressure plate bolt.

7. The aluminum rod casting water blowing device according to claim 6, characterized in that, It also includes a support frame, on which the water intercepting plate is fixedly mounted, and the pressure plate bolts pass through the pressure plate and the connecting end plate in sequence and are fixedly connected to the support frame.

8. The aluminum rod casting water blowing device according to claim 7, characterized in that, It also includes an anti-rollover structure installed on the support frame. The anti-rollover structure is a weight bar or weight block with the same or similar weight as the pressure plate and the wiper blade. One side of the support frame is used to connect and fix it to the connecting end plate of the wiper blade, and the other side of the support frame is provided with the anti-rollover structure.

9. The aluminum rod casting water blowing device according to any one of claims 1 to 8, characterized in that, One or more sets of the aluminum rod casting water blowing devices are provided, and the multiple sets of aluminum rod casting water blowing devices are arranged sequentially and at intervals along the outer peripheral surface of the casting rod.

10. An aluminum rod casting system, characterized in that, The aluminum rod casting water blowing device includes any one of claims 1 to 9, and the aluminum rod casting system further includes a heat insulation cap, an adapter plate, a graphite ring, and a crystallizer.

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