Efficient water scraping device for aluminum-lithium alloy flat cast ingot

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By designing an efficient wiper device including a frame, drainage plate and height regulator in the production process of aluminum-lithium alloy flat ingots, the problem of water return after wiper is solved, the quality and efficiency of the ingots are improved, and the quality and efficiency of the ingots are extended. The service life of rubber leather.

CN119407121APending Publication Date: 2025-02-11HUNAN ZHONGCHUANG AEROSPACE NEW MATERIAL CO LTD

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Patent Information

Application Number: CN202411913156.9
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-12-24
Publication Date: 2025-02-11

AI Technical Summary

Technical Problem

In the production process of aluminum-lithium alloy ingots, existing wipers are prone to return water after wipe, causing water droplets to flow back and splash to the ingot, increasing the tendency of cracks and reducing the quality of the ingot.

Method used

An aluminum-lithium alloy flat ingot high-efficiency wiper device is designed, including a frame, drainage plate and height regulator. The drainage plate is arranged on the outer circumference of the wiper, and the end extends obliquely downward toward the wiper, for guiding the flow of water; the height regulator is used to control the height of the wiper to meet the requirements of different ingots.

Benefits of technology

By adding eaves-type water diversion boards, the water flow can be effectively diverted, reducing or avoiding backwater, preventing water droplets from splashing back into the ingot, improving the quality and efficiency of the ingot, and extending the service life of the wiped rubber skin.

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Abstract

The invention discloses an efficient water scraping device for aluminum-lithium alloy flat ingots, and relates to the technical field of aluminum-lithium alloy ingots, the efficient water scraping device for aluminum-lithium alloy flat ingots comprises: a frame for fixedly mounting a water scraper; the drainage plate is arranged on the periphery of the wiper, the tail end of the drainage plate obliquely extends downwards in the direction deviating from the wiper, and the drainage plate is used for enabling water flow generated after the wiper wipes water to flow into a casting well through the drainage plate; the height adjuster is connected with the frame or the wiper and used for controlling the height of the wiper by controlling the height of the frame or controlling the height of the wiper. The eave type water diversion plate is additionally arranged, water is effectively guided, the water return phenomenon after water scraping is reduced or avoided, water drops are prevented from being splashed back to cast ingots, the quality and efficiency of the cast ingots are improved, and the requirements for the cast ingots with different heights are met through the height adjuster.

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Description

Technical Field

[0001] The invention relates to the technical field of aluminum-lithium alloy ingot casting, and in particular to a high-efficiency water-wiping device for aluminum-lithium alloy flat ingot casting. Background Art

[0002] When aluminum alloy is produced by direct water-cooled semi-continuous casting, casting cracks are a common defect and also a more harmful defect. It destroys the continuity of the metal structure and cannot be pressed together during the subsequent extrusion or rolling process.

[0003] Therefore, ingots with cracks are considered absolute waste during ingot inspection. The cause of casting cracks is that during the crystallization, solidification and cooling process of the ingot, solidification shrinkage will produce a large internal stress. When the internal stress is large enough to exceed the strength limit of the material, the ingot will crack or burst. Ingot cracking or bursting can occur at the beginning of casting, in the middle of casting, or even at the end of casting or during ingot transfer.

[0004] In the production process of aluminum-lithium alloy ingots, because the aluminum-lithium alloy contains high magnesium and lithium elements, it has a wide crystallization temperature range, and its high and low temperature plasticity are relatively poor, so it has a great tendency to form hot cracks and cold cracks, and the ingot is difficult to form. The casting success rate is very low, and the larger the diameter of the round ingot or the larger the specification or width-to-thickness ratio of the flat ingot, the greater the tendency to crack.

[0005] In order to reduce the tendency to crack, the industry currently generally uses a wiper device in the production of 2 and 7 series super-hard alloys with high crack tendency. During the casting process, the device is placed at a certain position of the ingot, and rubber products are used to clamp the ingot to block the water flow, so that the ingot under the wiper can recover heat, thereby reducing stress and effectively reducing the tendency to crack.

[0006] However, when using the wiper technology solution, there is water backflow after wiper. Due to design problems, water droplets are easily backflowed and splashed onto the ingot after the water flow is blocked. Summary of the invention

[0007] The purpose of the present invention is to provide an efficient wiper device for aluminum-lithium alloy flat ingots, which can effectively avoid water returning to the surface of the ingot after scraping, prevent incomplete scraping, and increase the service life of the scraper rubber.

[0008] In order to solve the above technical problems, the embodiment of the present invention provides an efficient wiper device for aluminum-lithium alloy flat ingots, comprising:

[0009] A frame for fixing and mounting the wiper;

[0010] A guide plate is arranged on the periphery of the wiper, and the end of the guide plate extends obliquely downward in a direction away from the wiper, and is used to guide the water flow generated by the wiper after wiping into the casting well through the guide plate;

[0011] A height adjuster is connected to the frame or the wiper, and is used to control the height of the wiper by controlling the height of the frame, or to control the height of the wiper. The wiper is suspended from the frame by a chain or is clamped by a connecting rod.

[0012] Wherein, the guide plate is connected to the wiper by bolts or welding.

[0013] Wherein, the guide plate and the wiper are welded by a steel plate, and the thickness of the steel plate is 0.8-1.0 mm.

[0014] Wherein, the width of the guide plate is 80mm-100mm.

[0015] Wherein, the included angle between the guide plate and the vertical direction is 30°-60°.

[0016] The wiper further includes a rubber skin, wherein the rubber skin is provided with a rubber inner cavity for storing water, and is used to expand the rubber inner cavity through water pressure to drive the rubber skin to adhere to the surface of the ingot.

[0017] Wherein, it also includes a multi-layer sawtooth structure arranged on the rubber skin of the wiper close to the ingot.

[0018] Wherein, the height adjuster is a manual height adjuster or an electric height adjuster.

[0019] Among them, the electric height adjuster includes a motor, a reducer, a gear transmission, a transmission shaft and a screw. The motor is connected to the reducer to obtain a predetermined rotational speed through the reducer. The reducer drives the transmission shaft through the gear transmission to control the rotation of the screw, and the height of the frame is controlled through the screw.

[0020] The high-efficiency wiper device for aluminum-lithium alloy flat ingots provided by the embodiment of the present invention has the following advantages compared with the prior art:

[0021] The high-efficiency wiper device for aluminum-lithium alloy flat ingots provided in the embodiment of the present invention effectively guides water by adding an eaves-type water diversion plate, reduces or avoids the backflow phenomenon after wiper, prevents water droplets from splashing back to the ingot, improves the quality and efficiency of the ingot, and realizes the requirements for ingots of different heights through a height adjuster. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the front view structure of a specific implementation of the high-efficiency wiper device for aluminum-lithium alloy flat ingots provided in an embodiment of the present invention;

[0024] Figure 2 A schematic structural diagram of a height adjuster of a specific implementation of an aluminum-lithium alloy flat ingot high-efficiency wiper device provided in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of a wiper structure of a specific implementation of a high-efficiency wiper device for aluminum-lithium alloy flat ingots provided in an embodiment of the present invention;

[0026] Among them, 1-ingot wiper splint, 2-rubber skin, 3-wiper water inlet, 4-wiper serrations, 5-wiper support rail, 6-gear thread assembly, 7-frame, 8-wiper, 9-drainage plate, 10-motor, 11-reducer, 12-gear transmission, 13-transmission rod. DETAILED DESCRIPTION

[0027] 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.

[0028] Please refer to Figure 1-3 , Figure 1 A schematic diagram of the front view structure of a specific implementation of the high-efficiency wiper device for aluminum-lithium alloy flat ingots provided in an embodiment of the present invention; Figure 2 A schematic structural diagram of a height adjuster of a specific implementation of an aluminum-lithium alloy flat ingot high-efficiency wiper device provided in an embodiment of the present invention; Figure 3 A schematic diagram of a wiper structure of a specific implementation of a high-efficiency wiper device for an aluminum-lithium alloy flat ingot provided in an embodiment of the present invention.

[0029] In a specific embodiment, the aluminum-lithium alloy flat ingot high-efficiency wiper device comprises:

[0030] A frame 7, used for fixing and mounting a wiper 8;

[0031] A guide plate 9 is arranged on the periphery of the wiper 8, and the end thereof extends obliquely downward in a direction away from the wiper 8, and is used to guide the water flow generated by the wiper 8 after wiping the water into the casting well through the guide plate 9;

[0032] A height adjuster is connected to the frame 7 or the wiper 8 and is used to control the height of the wiper 8 by controlling the height of the frame 7 or to control the height of the wiper 8 .

[0033] By adding eaves-type water diversion plates, water can be effectively diverted to reduce or avoid the backflow phenomenon after scraping, prevent water droplets from splashing back to the ingot, improve the quality and efficiency of the ingot, and achieve the requirements for ingots of different heights through the height adjuster.

[0034] The present application does not limit the connection method between the wiper 8 and the frame 7. The wiper 8 is suspended and connected to the frame 7 through a chain or clamped through a connecting rod, or connected in other ways.

[0035] In the present application, the guide plate 9 is used for drainage operation, and the connection method between the guide plate 9 and the wiper 8 is not limited. The guide plate 9 is connected to the wiper 8 by bolts or welding, or connected by other methods.

[0036] The present application does not limit the structure and material of the drain plate 9. In order to ensure the reliability of drainage, a hydrophobic material is generally used. Moreover, since the temperature is too high during the ingot casting process, it is necessary to use a high-temperature resistant material as much as possible. In one embodiment, the drain plate 9 and the wiper 8 are welded by a steel plate, and the thickness of the steel plate is 0.8-1.0 mm.

[0037] By adopting steel plate welding, the stability of the structure is ensured and the drainage performance is improved.

[0038] The present application includes but is not limited to the use of steel plates for welding, and there is no limitation on the thickness of the steel plates.

[0039] The size and installation angle of the guide plate 9 are not limited in the present application. The width of the guide plate 9 is 80 mm-100 mm, and the angle between the guide plate 9 and the vertical direction is 30°-60°.

[0040] In order to further improve the wiping efficiency and avoid damage to the wiper 8 due to the high temperature of the ingot, in one embodiment, the aluminum-lithium alloy flat ingot high-efficiency wiping device also includes a rubber skin arranged on the wiper 8, and the rubber skin is provided with a rubber inner cavity for storing water, which is used to expand the rubber inner cavity through water pressure and drive the rubber skin to stick to the surface of the ingot.

[0041] By setting up a rubber inner cavity for storing water, the rubber inner cavity is expanded by water pressure to drive the rubber skin to stick to the surface of the ingot, so that the rubber is expanded by water pressure and sticks to the surface of the ingot. The water cooling inside the rubber can prevent the rubber from being burned by the ingot, thereby effectively extending the service life.

[0042] In order to further improve the water-collecting effect of the wiper 8 , in one embodiment, the aluminum-lithium alloy flat ingot high-efficiency wiping device further includes a multi-layer serrated structure 4 arranged on the rubber skin 2 of the wiper 8 close to the ingot.

[0043] By providing the multi-layer sawtooth structure 4, a better fitting surface is provided, thereby effectively preventing the water from being wiped cleanly and improving the efficiency of the water wiping.

[0044] The present application does not limit the specific size of the multi-layer sawtooth structure 4.

[0045] In order to further improve the water hanging efficiency and avoid damage to the wiper 8 due to the high temperature of the ingot, in one embodiment, the aluminum-lithium alloy flat ingot high-efficiency wiping device also includes a rubber inner cavity for storing water arranged inside the wiper 8, which is used to expand the rubber inner cavity through water pressure and drive the rubber skin to stick to the surface of the ingot.

[0046] By setting up a rubber cavity for storing water, the rubber cavity is expanded by water pressure to drive the rubber skin to stick to the surface of the ingot, so that the rubber skin is expanded by water pressure and sticks to the surface of the ingot. The internal water cooling of the rubber skin can prevent the rubber skin from being burned by the ingot, thereby effectively extending the service life.

[0047] The present application does not limit the structure and control method of the height adjuster. The height adjuster may be a manual height adjuster or an electric height adjuster, or other structures.

[0048] The manual height adjuster in the present application can adopt a structure similar to that of a micrometer screw, and can connect the frame 7 through a related driving structure. The frame height can be controlled by rotating the corresponding control component, and precise height control can be achieved by setting a scale at the operating position. A zipper structure can also be used to connect the frame 7, and a scale can be set on the zipper. The height of the frame can be set by stretching it, and it can be fixed after reaching a predetermined height. In addition, a corresponding control mechanism can be set, and through mechanisms such as buttons, the predetermined height can only be increased or decreased each time. For example, during the lifting process, pressing once increases the height by 1 cm, or other manual height control adjusters can be used.

[0049] In one embodiment, the electric height adjuster includes a motor 10, a reducer, a gear transmission 12, a transmission shaft and a screw. The motor 10 is connected to the reducer to obtain a predetermined rotational speed through the reducer. The reducer drives the transmission shaft through the gear transmission 12 to control the rotation of the screw, and the height of the frame 7 is controlled through the screw.

[0050] The present application includes but is not limited to the above-mentioned electric height adjuster, and height control can also be performed using structures such as cylinders.

[0051] In one embodiment, the aluminum-lithium alloy flat ingot high-efficiency wiper device is provided with a drainage plate 9 with a width of 100 mm on the periphery of the wiper 8, which is welded with a 1 mm thick thin steel plate and has a downward slope of 45°. After wiping, the water flows into the casting well through the drainage plate 9, similar to an umbrella; the fitting surface of the rubber skin and the ingot is designed to be a multi-layer sawtooth type, so that it can better fit the ingot, and the sharp contact surface is particularly suitable for the rough surface of the aluminum-lithium ingot; the inner cavity of the rubber skin is designed to be filled with water in a capsule, which is expanded by water pressure and adheres to the surface of the ingot. The internal water cooling of the rubber skin can make the rubber skin less likely to be burned by the ingot, effectively extending the service life; an overall frame 7 for hanging the wiper 8 is added, and the height is adjusted by the motor 10.

[0052] The preset speed is obtained by using a reducer, and then the power is transmitted to the transmission shaft through a gear transmission device. The transmission shaft uses a worm gear transmission device to transmit the rotation of the transmission shaft to the lead screw, thereby realizing the up and down movement of the lead screw, and further realizing the up and down movement of the wiper 8 frame 7, thereby realizing the height adjustment of the wiper 8. The height value can be accurately set by setting the number of rotations of the transmission shaft by a computer.

[0053] The wiper 8 is filled with water through the wiper water filling port 3 .

[0054] The shape of the ingot wiper 8 is fixed by the ingot wiper 8 clamping plate 1, water is injected through the water injection port of the wiper 8, the lateral movement of the wiper 8 is limited by the wiper support guide rail 5, the relevant parts are combined by the gear thread assembly, the wiper 8 is suspended by the wiper 8 suspension frame 7, the power is transmitted through the gear transmission 12, and the power is transmitted to the frame 7 through the transmission rod 13, and the transmission rod 13 generally adopts a screw.

[0055] In summary, the high-efficiency wiper device for aluminum-lithium alloy flat ingots provided in the embodiment of the present invention effectively guides water by adding an eaves-type water diversion plate, reduces or avoids the backflow phenomenon after wiper, prevents water droplets from splashing back to the ingot, improves the quality and efficiency of the ingot, and realizes the requirements for ingots of different heights through a height adjuster.

[0056] The above is a detailed introduction to the high-efficiency wiper device for aluminum-lithium alloy flat ingots provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An efficient wiper device for aluminum-lithium alloy flat ingots, characterized in that: include: A frame for fixing and mounting the wiper; A guide plate is arranged on the periphery of the wiper, and the end of the guide plate extends obliquely downward in a direction away from the wiper, and is used to guide the water flow generated by the wiper after wiping into the casting well through the guide plate; A height adjuster is connected to the frame or the wiper, and is used to control the height of the wiper by controlling the height of the frame, or to control the height of the wiper. The wiper is suspended from the frame by a chain or is clamped by a connecting rod.

2. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 1, characterized in that: The guide plate is connected to the wiper by bolts or by welding.

3. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 2, characterized in that: The guide plate and the wiper are welded via a steel plate, and the thickness of the steel plate is 0.8-1.0 mm.

4. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 1, characterized in that: The width of the guide plate is 80mm-100mm.

5. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 1, characterized in that: The included angle between the guide plate and the vertical direction is 30°-60°.

6. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 1, characterized in that: It also includes a rubber skin arranged on the wiper, wherein the rubber skin is provided with a rubber inner cavity for storing water, and is used for expanding the rubber inner cavity through water pressure to drive the rubber skin to be close to the surface of the ingot.

7. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 6, characterized in that: It also includes a multi-layer sawtooth structure arranged on the rubber skin of the wiper close to the ingot.

8. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 1, characterized in that: The height adjuster is a manual height adjuster or an electric height adjuster.

9. The high-efficiency wiper device for aluminum-lithium alloy flat ingots as claimed in claim 9, characterized in that: The electric height adjuster includes a motor, a reducer, a gear transmission, a transmission shaft and a screw. The motor is connected to the reducer to obtain a predetermined rotational speed through the reducer. The reducer drives the transmission shaft through the gear transmission to control the rotation of the screw, and the height of the frame is controlled through the screw.