Aluminum ingot pouring press nozzle and pouring system

Abstract

The utility model belongs to the technical field of nozzles, and particularly relates to an aluminum ingot pouring press nozzle and a pouring system, the aluminum ingot pouring press nozzle comprises a first end face M1 and a second end face M2 which are opposite to each other, and is provided with a channel penetrating through the nozzle in the direction from the first end face M1 to the second end face M2, the channel comprises a first cavity and a second cavity, the first cavity is close to the second end face M2, the second cavity is close to the first end face M1, the flowing direction of molten aluminum flows from the first cavity to the second cavity, a plurality of steps are arranged on the inner wall of the first cavity, and the diameters of the steps are different. The flow speed of the molten aluminum is gradually reduced through the first cavity, and then the impact force of the molten aluminum is reduced through the steps with different diameters arranged in the first cavity, so that non-uniform flow is reduced, the speed difference of the molten aluminum sprayed by the nozzle of the aluminum ingot pouring press is reduced, and the uniformity is improved.

Description

Technical Field

[0001] This utility model belongs to the field of nozzle technology, and in particular relates to nozzles and casting systems for aluminum ingot casting presses. Background Technology

[0002] The nozzle of the aluminum ingot casting press is a key component used in the aluminum ingot production process to accurately pour molten aluminum into the mold through the nozzle.

[0003] When molten aluminum is poured through the nozzle of the aluminum ingot pouring press, the speed at which the molten aluminum is ejected from the nozzle and the speed at which it enters the nozzle should be consistent. When there is a large difference in the speed at which the molten aluminum enters the nozzle, it will result in uneven pouring of the molten aluminum. Utility Model Content

[0004] The purpose of this utility model is to provide a nozzle for an aluminum ingot casting press to solve the problems mentioned in the background art, including:

[0005] A first end face M1 and a second end face M2 are opposite to each other and have a channel that passes through the nozzle in the direction from the first end face M1 to the second end face M2. The channel includes a first cavity and a second cavity. The first cavity is close to the second end face M2 and the second cavity is close to the first end face M1. The flow direction of the molten aluminum is from the first cavity to the second cavity. The inner wall of the first cavity is provided with a number of steps, and the diameter of each step is different.

[0006] Preferably, the inner diameter of the first cavity gradually decreases from the second cavity.

[0007] Preferably, the diameter of the plurality of steps decreases progressively from the second end face M2 to the first end face M1.

[0008] Preferably, the inner wall of the second cavity is smooth, and the inner diameter of the second cavity gradually decreases in the direction from the second end face M2 to the first end face M1.

[0009] Preferably, a third cavity is provided inside the nozzle, the third cavity extends along the contour direction of the nozzle, and a first channel and a second channel are respectively provided inside the nozzle. The first channel, the second channel and the third cavity are connected to each other, so that the third cavity is connected to the outside. Two internally threaded tubes are fixedly connected to the outer wall of the nozzle, and the two internally threaded tubes are respectively connected to the first channel and the second channel.

[0010] Preferably, the third cavity is annular and is disposed around the second cavity.

[0011] Preferably, the distance between the first channel and the second cavity is less than the distance between the second channel and the second cavity, and the cooling fluid enters from the first channel and flows out from the second channel.

[0012] Preferably, a flow-guiding assembly is provided between the first cavity and the second cavity, which can reduce the turbulence of the molten aluminum.

[0013] Preferably, the drainage component includes a plate body, which is installed at the junction of the first cavity and the second cavity, and the plate body has several through holes inside.

[0014] This utility model also provides a casting system, including:

[0015] The nozzle of any of the above aluminum ingot casting presses.

[0016] This application uses a channel structure with a gradually decreasing inner diameter from the second end face to the first end face to gradually reduce the flow rate of the molten aluminum. Furthermore, several steps with different diameters set in the first cavity reduce the impact force of the molten aluminum, thereby reducing uneven flow and reducing the velocity difference of the molten aluminum after being ejected from the nozzle of the aluminum ingot casting press, thus increasing uniformity. Attached Figure Description

[0017] Figure 1 This is the left view of the present invention;

[0018] Figure 2 This is a cross-sectional axial view of the present invention;

[0019] Figure 3 This is a front view of the cross-section of this utility model;

[0020] Figure 4 This is a left sectional view of the present invention.

[0021] The markings in the diagram are as follows:

[0022] 100, First cavity; 200, Second cavity; 300, Third cavity; 400, First channel; 500, Second channel; 600, Internally threaded tube; 700, Drainage assembly; 710, Plate; 720, Through hole; M1, First end face; M2, Second end face. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0024] In existing technologies, when using the nozzle of an aluminum ingot casting press for molten aluminum pouring, uneven pouring of the molten aluminum is observed, but the cause is unknown. Long-term practice has revealed that when there is a significant difference in the spray velocity from the nozzle, the pouring uniformity decreases. To address this issue, this embodiment provides an aluminum ingot casting press nozzle, such as... Figures 1-2 As shown, it includes: a first cavity 100 for reducing impact force and a second cavity 200 for reducing flow velocity.

[0025] The nozzle of the aluminum ingot casting press has a first end face M1 and a second end face M2 that are opposite to each other, and has a channel that passes through the nozzle in the direction from the first end face M1 to the second end face M2.

[0026] like Figure 2 As shown, the channel includes a first cavity 100, which is close to the second end face M2. The inner wall of the first cavity 100 is provided with several steps, each with a different diameter. The diameter of the steps gradually decreases from the second end face M2 to the first end face M1, thus forming a stepped first cavity 100. When molten aluminum is injected from the second end face M2, it will first collide with the steps and be blocked by them, thereby reducing the impact force when the molten aluminum enters.

[0027] like Figure 2 As shown, the channel also includes a second cavity 200, which is close to the first end face M1. The flow direction of the molten aluminum is from the first cavity 100 to the second cavity 200. The inner diameter of the first cavity 100 to the second cavity 200 gradually decreases. The inner diameter of the second cavity 200 gradually decreases in the direction from the second end face M2 to the first end face M1. The gradually shrinking flow channel structure causes the flow rate of the molten aluminum to gradually decrease, reducing uneven flow and reducing the velocity difference of the molten aluminum after being ejected from the nozzle of the aluminum ingot casting press.

[0028] To reduce the turbulence caused by the flow of molten aluminum on several stepped surfaces, a further solution includes, for example... Figure 2 As shown, the inner wall of the second cavity 200 is smooth. The smooth inner wall of the second cavity 200 makes the flow of aluminum liquid inside the second cavity 200 stable, avoiding the turbulence caused by several steps, which would cause uneven spraying of aluminum liquid.

[0029] To increase the service life of the nozzles in aluminum ingot casting presses, further solutions include, for example... Figure 2 As shown, a third cavity 300 is provided inside the nozzle. The third cavity 300 extends along the contour of the nozzle and is annular. The third cavity 300 is disposed around the second cavity 200 (e.g., Figure 3As shown (forming a circular outline), the nozzle of the aluminum ingot casting press has a first channel 400 and a second channel 500 respectively. The first channel 400, the second channel 500 and the third cavity 300 are connected to each other, so that the third cavity 300 is connected to the outside. The outer wall of the nozzle is fixedly connected to two internally threaded pipes 600. The two internally threaded pipes 600 are respectively connected to the first channel 400 and the second channel 500. In use, the external pipe is first connected to the two internally threaded pipes 600. Then, the cooling fluid is injected from the first channel 400 and flows out from the second channel 500, which takes away some of the heat received by the nozzle of the aluminum ingot casting press, thereby reducing the impact of high temperature on the nozzle of the aluminum ingot casting press and improving the service life of the nozzle of the aluminum ingot casting press.

[0030] To improve cooling efficiency, such as Figure 2 As shown, in a further embodiment, the distance between the first channel 400 and the second cavity 200 is less than the distance between the second channel 500 and the second cavity 200. After the coolant is injected from the first channel 400, it will be closer to the heat inside the second cavity 200 and carry away more heat, thus improving the cooling effect.

[0031] To further reduce the turbulence caused by the steps, further solutions include, for example... Figure 2 As shown, a flow guiding component 700 is provided between the first cavity 100 and the second cavity 200. The flow guiding component 700 can reduce the turbulence of the molten aluminum. Specifically, the flow guiding component 700 includes a plate 710 and a plurality of through holes 720. The plate 710 is installed at the junction of the first cavity 100 and the second cavity 200 to block the fluid. The plate 710 has a plurality of through holes 720 inside. This porous structure can evenly distribute the flow rate of the molten aluminum and prevent turbulent flow of the molten aluminum from entering the mold. Further, the plate 710, in conjunction with the several through holes 720, can effectively reduce the flow rate of the molten aluminum and prevent large air bubbles from entering with the molten aluminum.

[0032] This utility model also provides a casting system, including:

[0033] The nozzle of the aluminum ingot casting press mentioned above.

[0034] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A nozzle for an aluminum ingot casting press, characterized in that, include: A first end face (M1) and a second end face (M2) are opposite to each other and have a channel penetrating the nozzle in the direction from the first end face (M1) to the second end face (M2). The channel includes a first cavity (100) and a second cavity (200). The first cavity (100) is close to the second end face (M2), and the second cavity (200) is close to the first end face (M1). The flow direction of the molten aluminum is from the first cavity (100) to the second cavity (200). The inner wall of the first cavity (100) is provided with a number of steps, and the diameter of each step is different.

2. The nozzle of the aluminum ingot casting press according to claim 1, characterized in that, The inner diameter of the first cavity (100) gradually decreases from the second cavity (200).

3. The nozzle of the aluminum ingot casting press according to claim 1, characterized in that, The diameter of the plurality of steps decreases progressively from the second end face (M2) to the first end face (M1).

4. The nozzle of the aluminum ingot casting press according to claim 1, characterized in that, The inner wall of the second cavity (200) is smooth, and the inner diameter of the second cavity (200) gradually decreases in the direction from the second end face (M2) to the first end face (M1).

5. The nozzle of the aluminum ingot casting press according to claim 1, characterized in that, The nozzle has a third cavity (300) inside, which extends along the outline of the nozzle. The nozzle has a first channel (400) and a second channel (500) inside, which are connected to the third cavity (300) so that the third cavity (300) is connected to the outside. The outer wall of the nozzle is fixedly connected to two internally threaded tubes (600), which are connected to the first channel (400) and the second channel (500) respectively.

6. The nozzle of the aluminum ingot casting press according to claim 5, characterized in that, The third cavity (300) is annular and is disposed around the second cavity (200).

7. The nozzle of the aluminum ingot casting press according to claim 5, characterized in that, The distance between the first channel (400) and the second cavity (200) is less than the distance between the second channel (500) and the second cavity (200). The fluid for cooling enters from the first channel (400) and flows out from the second channel (500).

8. The nozzle of the aluminum ingot casting press according to claim 1, characterized in that, A flow-guiding assembly (700) is provided between the first cavity (100) and the second cavity (200), which can reduce the turbulence of the aluminum liquid.

9. The nozzle of the aluminum ingot casting press according to claim 8, characterized in that, The drainage assembly (700) includes a plate (710) which is installed at the junction of the first cavity (100) and the second cavity (200). The plate (710) has several through holes (720) inside.

10. A casting system, characterized in that, include: The nozzle of the aluminum ingot casting press according to any one of claims 1-9.

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