A vertical casting and rolling pouring system
By designing a vertical casting and rolling gating system, the problems of uneven solidification and crystallization and easy breakage of the casting nozzle during the casting and rolling process were solved, realizing a stable supply of molten metal and the production of high-quality multilayer composite plates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING SANHANG ADVANCED MATERIALS RES INST CO LTD
- Filing Date
- 2026-03-13
- Publication Date
- 2026-05-29
AI Technical Summary
Existing horizontal and inclined casting and rolling methods suffer from problems such as uneven solidification and crystallization, inclusions and bubbles remaining inside the plate, large performance differences when multiple metals are combined, and easy breakage of the casting nozzle. There is a lack of mature casting systems for vertical casting and rolling.
A vertical casting and rolling gating system was designed, including a front box, a closed channel assembly, a casting nozzle, and a flow control device. The casting nozzle is equipped with a serpentine channel and a flow control device. The liquid level is adjusted by laser ranging to achieve stable supply and precise control of molten metal.
It improves the internal quality of molten metal, prevents inclusions and bubbles from entering the product, enhances the success rate of multi-layer metal composites, avoids spout breakage, and is suitable for mass production.
Smart Images
Figure CN122099252A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of metal material casting and rolling technology, specifically a vertical casting and rolling gating system. Background Technology
[0002] The casting and rolling methods currently used in the industry are mainly horizontal casting and rolling and inclined casting and rolling, but there are the following problems: (1) Due to gravity, the contact area between the molten metal and the upper and lower rollers is different, resulting in uneven solidification and crystallization; (2) Slag inclusions and bubbles are easily left inside the plate; (3) When multi-layer metal materials are composited, the uneven solidification and crystallization between the upper and lower layers leads to a large difference in the performance of the upper and lower composite layers; (4) When multi-layer metal materials are composited, due to gravity, the molten metal is prone to backflow, the gap between the lower lip of the casting nozzle and the surface of the casting and rolling rollers cannot exceed 1 mm, the thickness of the lower composite solid metal plate cannot exceed 1 mm, and the casting nozzle is easily scratched.
[0003] Vertical casting and rolling, as a near-net-shape forming technology, offers advantages such as a short process, low energy consumption, and high production efficiency. The vertical arrangement ensures symmetrical contact between the molten metal and the casting rolls, resulting in symmetrical cavity morphology, consistent cooling rates on both sides, and a more uniform microstructure. Furthermore, inclusions and air bubbles in the molten metal are more easily lifted to the surface, leading to higher internal quality of the sheet metal. This is particularly advantageous when performing multi-layer metal sheet composites, offering greater operational flexibility and a higher success rate for vertical casting. Currently, the lack of a mature gating system in vertical casting and rolling hinders its widespread application. Summary of the Invention
[0004] The purpose of this invention is to provide a vertical casting and rolling gating system to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A vertical casting and rolling gating system includes a front box, a closed channel assembly disposed below the front box, a casting nozzle disposed at the bottom end of the closed channel assembly, a second flow channel disposed on one side of the front box, a pouring pipe disposed at the end of the second flow channel away from the front box, a first flow channel disposed at the top end of the pouring pipe, a first flow control device disposed at the gate position of the first flow channel, and a second flow control device disposed at the gate position of the front box.
[0007] As a further aspect of the present invention: the outer contour of the casting nozzle is composed of a side baffle and a casting nozzle plate.
[0008] As a further aspect of the present invention: the inner cavity of the casting nozzle is provided with a first stop block, a second stop block and a third stop block in sequence, and the first stop block, the second stop block and the third stop block form a serpentine channel in the inner cavity of the casting nozzle.
[0009] As a further aspect of the present invention: the area of each part of the serpentine channel increases by a factor of 1.05 from the casting nozzle outlet to the casting nozzle inlet, i.e., S2=1.05xS1, S3=1.05xS2, S4=1.05xS3, S5=1.05xS4, S6=1.05xS5, S7=1.05xS6.
[0010] As a further aspect of the present invention: the first flow channel and the second flow channel are distributed in a stepped manner in a vertical plane.
[0011] Compared with the prior art, the beneficial effect of the present invention is that by setting a serpentine channel composed of a first baffle, a second baffle and a third baffle in the inner cavity of the casting nozzle, a stable supply of molten metal can be achieved.
[0012] The casting system has a simple structure, is easy to install and debug, and is suitable for mass production. Vertical flow allows inclusions and air bubbles in the molten metal to float to the surface, preventing them from entering the product and improving its internal quality.
[0013] When producing multi-layer metal composite plates, the casting nozzle can be adjusted up and down, and the molten aluminum will not leak out when supplied vertically. When the solid metal plate is threaded through the casting roll gap, it is not easy to scratch the casting nozzle. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a vertical casting and rolling gating system provided in an embodiment of the present invention.
[0015] Figure 2 This is a side view of a vertical casting and rolling gating system provided in an embodiment of the present invention.
[0016] Figure 3 This is a schematic diagram of the structure of a side baffle in a vertical casting and rolling system provided in an embodiment of the present invention.
[0017] Wherein: 1-casting nozzle, 2-closed channel assembly, 3-front box, 4-second flow control device, 5-second flow channel, 6-injection pipe, 7-first flow control device, 8-first flow channel, 11-side baffle, 12-casting nozzle plate, 13-first stop block, 14-second stop block, 15-third stop block. Detailed Implementation
[0018] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.
[0019] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.
[0020] like Figure 1 , Figure 2 , Figure 3The diagram shown is a structural diagram of a vertical casting and rolling gating system according to an embodiment of the present invention. It includes a front box 3, a closed channel assembly 2 disposed below the front box 3, a casting nozzle 1 disposed at the bottom of the closed channel assembly 2, a second flow channel 5 disposed on one side of the front box 3, a pouring pipe 6 disposed at the end of the second flow channel 5 away from the front box 3, a first flow channel 8 disposed at the top of the pouring pipe 6, a first flow control device 7 disposed at the gate position of the first flow channel 8, and a second flow control device 4 disposed at the gate position of the front box 3.
[0021] During operation, the first flow control device 7 and the second flow control device 4 use laser rangefinders to monitor the molten metal level, thereby adjusting their switching positions. The first flow control device 7 is matched with the gating gate of the first flow channel 8 to achieve coarse adjustment of the molten metal level, with a control accuracy of ±2mm. The second flow control device 4 is matched with the gating gate of the front chamber 3 to achieve fine adjustment of the molten metal level, with a control accuracy of ±0.5mm. The casting nozzle 1, the closed channel assembly 2, the front chamber 3, the second flow channel 5, and the second flow control device 4 are fixed as a whole on a platform, which can be adjusted vertically (adjustment range 0-20mm) and horizontally and backward (0-40mm) to adjust the gap and relative position between the lip of the casting nozzle 1 and the casting roll.
[0022] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the outer contour of the casting nozzle 1 is composed of a side baffle 11 and a casting nozzle plate 12.
[0023] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the inner cavity of the casting nozzle 1 is provided with a first stop block 13, a second stop block 14 and a third stop block 15 in sequence, and the first stop block 13, the second stop block 14 and the third stop block 15 form a serpentine channel in the inner cavity of the casting nozzle 1.
[0024] When molten metal flows in a serpentine channel, the serpentine channel can buffer the molten metal, reduce the flow rate, and achieve a stable flow, while also ensuring that the molten metal always fills the channel, preventing air entrapment and providing sufficient static pressure for the molten metal.
[0025] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the area of each part of the serpentine channel increases by a factor of 1.05 from the outlet of the casting nozzle 1 to the inlet of the casting nozzle 1, that is, S2=1.05xS1, S3=1.05xS2, S4=1.05xS3, S5=1.05xS4, S6=1.05xS5, S7=1.05xS6.
[0026] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment of the present invention, the first flow channel 8 and the second flow channel 5 are arranged in a stepped manner in a vertical plane.
[0027] The working principle of this invention is as follows: During use, the first flow control device 7 and the second flow control device 4 use a laser rangefinder to monitor the molten metal level, thereby adjusting the switching positions of the first flow control device 7 and the second flow control device 4. The first flow control device 7 is matched with the gate of the first flow channel 8 to achieve coarse adjustment of the molten metal level, with a control accuracy of ±2mm. The second flow control device 4 is matched with the gate of the front box 3 to achieve fine adjustment of the molten metal level, with a control accuracy of ±0.5mm. The casting nozzle 1, the closed channel assembly 2, the front box 3, the second flow channel 5, and the second flow control device 4 are fixed as a whole on a platform, which can be adjusted vertically (adjustment range 0-20mm) and horizontally and backward (0-40mm), thereby adjusting the gap and relative position between the lip of the casting nozzle 1 and the casting roll.
[0028] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A vertical casting and rolling gating system, comprising a front box (3), a closed channel assembly (2) provided below the front box (3), a casting nozzle (1) provided at the bottom end of the closed channel assembly (2), a second flow channel (5) provided on one side of the front box (3), a pouring pipe (6) provided at the end of the second flow channel (5) away from the front box (3), a first flow channel (8) provided at the top end of the pouring pipe (6), a first flow control device (7) provided at the gate position of the first flow channel (8), and a second flow control device (4) provided at the gate position of the front box (3).
2. The vertical casting and rolling gating system according to claim 1, characterized in that, The outer contour of the casting nozzle (1) is composed of a side baffle (11) and a casting nozzle plate (12).
3. The vertical casting and rolling gating system according to claim 1, characterized in that, The inner cavity of the casting nozzle (1) is provided with a first stop (13), a second stop (14) and a third stop (15) in sequence. The first stop (13), the second stop (14) and the third stop (15) form a serpentine channel in the inner cavity of the casting nozzle (1).
4. A vertical casting and rolling gating system according to claim 3, characterized in that, The area of each part of the serpentine channel increases by 1.05 times from the outlet of the casting nozzle (1) to the inlet of the casting nozzle (1), that is, S2=1.05xS1, S3=1.05xS2, S4=1.05xS3, S5=1.05xS4, S6=1.05xS5, S7=1.05xS6.
5. A vertical casting and rolling gating system according to claim 1, characterized in that, The first flow channel (8) and the second flow channel (5) are arranged in a stepped manner in the vertical plane.