Anti-reflection centrifugal disk

Abstract

The application discloses an anti-reflection centrifugal disc, which is provided with a molten pool and a liquid throwing groove, and is wrapped with a ring of hot melt material at the edge part of the centrifugal disc; during operation, the centrifugal disc rotates, and the molten drops are thrown from the centrifugal disc to impact the deposition layer and are reflected, and the reflected molten drops are captured by the hot melt material after impacting the hot melt material. The metal molten drop is a high-temperature liquid drop, and the molten drop can instantaneously soften the hot melt material when impacting the hot melt material, at which time the molten drop is embedded or penetrated into the hot melt material, loses the kinetic energy of re-reflecting, and no longer impacts the deposition layer. Thus, the problem of the reflected molten drop impacting the deposition layer again is fundamentally solved. In addition, the metal material embedded in the hot melt material can be recycled through the heating and melting method.

Description

Technical Field

[0001] This invention relates to the field of centrifugal jet forming technology, and in particular to an anti-reflective centrifugal disc. Background Technology

[0002] The principle of spray deposition is to break molten metal into fine droplets under the protection of an inert gas, and then continuously spray them onto a metal substrate under high pressure or centrifugal force, depositing a semi-solid deposition layer. The deposition layer solidifies into a preform through thermal conduction from the metal substrate. The preform is then hot-extruded or hot-forged to form a high-density metal ring. The advantage of spray deposition is that it can produce ring-shaped parts with minimal compositional segregation, fine and uniform microstructure, and relatively large dimensions.

[0003] Patent CN 109877299 B discloses a casting device and a casting centrifugal disc. The casting device utilizes the jet deposition principle to prepare hollow metal ingots. However, in application, it was found that the prepared hollow metal ingots were not ideal, mainly due to insufficient grain size and density. Analysis revealed that one reason for the insufficient grain size and density is that the molten droplets ejected from the centrifugal disc impact the deposited layer of the formed workpiece at an oblique angle, resulting in reflection after impact. According to the requirements of the jet forming process, the molten droplets need to cool rapidly during ejection and reach a semi-solid state before impacting the deposited layer.

[0004] Reference Figure 1-2 .Depend on Figure 1-2 It can be seen that the semi-solidified molten droplets 4 are reflected when they impact the deposited layer of the formed workpiece 3. Only a portion of the droplets fuse with the deposited layer, while the rest are reflected. If the reflected droplets 4 do not impact the deposited layer again, it only results in material loss. However, most of the droplets 4, after being reflected by the centrifugal disk 1, will impact the deposited layer of the formed workpiece 3 again. Since the droplets have lost some kinetic energy and gradually solidified after multiple impacts, the subsequent impact on the deposited layer results in poor fusion between the droplets and the deposited layer, a loose structure, and reduced density. Furthermore, the impact kinetic energy is significantly reduced, preventing the formation of fine grain structures. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention discloses an anti-reflection centrifugal disc, the purpose of which is to absorb or capture the reflected molten droplets so that they no longer impact the deposition layer.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] An anti-reflective centrifugal disc has a molten pool and a liquid ejection channel on it, and a ring of hot-melt material is wrapped around the edge of the centrifugal disc. When in operation, the centrifugal disc rotates, and the molten droplets are ejected from the centrifugal disc and hit the deposition layer and are reflected. The reflected molten droplets are captured by the hot-melt material after hitting it.

[0008] The beneficial effects of implementing the above technical solution are as follows: Since molten metal droplets are highly heated liquid droplets, when they impact the molten material, they can instantly soften the material. At this point, the droplet will embed itself or penetrate into the molten material, losing its kinetic energy for re-reflection and thus preventing it from impacting the deposition layer again. This fundamentally solves the problem of reflected molten droplets re-impacting the deposition layer.

[0009] To further improve the technical solution, a circumferential groove is provided at the edge of the centrifugal disc, and the hot melt material is wrapped in the circumferential groove.

[0010] The beneficial effects of implementing the above technical solution are: setting up a circumferential groove makes it easier to wrap the hot melt material around the circumferential groove.

[0011] Further improvements to the technical solution include making the width of the circumferential annular groove greater than the height of the formed workpiece.

[0012] The beneficial effects of implementing the above technical solution are as follows: the impact motion is very complex, and the direction of flight of some molten droplets after reflection is unpredictable. The width of the circumferential annular groove is greater than the height of the formed workpiece, which can expand the area where the hot melt material captures the molten droplets.

[0013] A further improvement to the technical solution is to include a cooling chamber inside the centrifuge disc, into which coolant is circulated.

[0014] The beneficial effects of implementing the above technical solution are as follows: a cooling chamber is provided in the centrifugal disc, which can cool the molten droplets and make them reach a semi-solid state before impacting the deposition layer; on the other hand, it can reduce the temperature of the centrifugal disc itself and prevent the hot molten material from being melted by the centrifugal disc.

[0015] To further improve the technical solution, the hot melt material is any one of asphalt, plastic, or hot melt adhesive.

[0016] The beneficial effects of implementing the above technical solution are as follows: asphalt, plastics, hot melt adhesives, etc. are all common hot melt materials that can be made into strips and wrapped around the edge of the centrifugal disc. Attached Figure Description

[0017] Figure 1 The diagram shown is a cross-sectional view of an existing centrifuge disc in operation.

[0018] Figure 2 What is shown is Figure 1 Top view.

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of this centrifuge disc.

[0020] Figure 4 The diagram shown is a cross-sectional view of this centrifuge disc.

[0021] Figure 5 This diagram shows another cross-sectional view of the centrifuge disc.

[0022] In the picture:

[0023] 1. Centrifuge tray;

[0024] 11. Molten pool; 12. Splashing tank; 13. Cooling chamber;

[0025] 2. Hot melt materials;

[0026] 3. Forming the workpiece;

[0027] 4. Molten droplets. Detailed Implementation

[0028] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. It should be noted that in the description of the present invention, terms such as "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation of the present invention. It should also be noted that in the description of the present invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0029] like Figure 3 As shown, an anti-reflective centrifuge disc has ten molten metal troughs 12 evenly distributed circumferentially on the surface of the centrifuge disc 1, and a molten metal pool 11 is located at the center of the disc, which is connected to the ten molten metal troughs 12. During operation, the centrifuge disc 1 rotates, and the molten metal in the molten metal pool 11 enters the molten metal troughs 12 and is tilted outward at the end of the molten metal troughs 12.

[0030] Reference Figure 3-4To absorb or capture the reflected molten droplets 4 and prevent them from impacting the deposition layer, a ring of hot-melt material 2 is wrapped around the edge of the centrifugal disc 1. During operation, the centrifugal disc 1 rotates, and the formed workpiece 3 moves up and down. After being ejected from the centrifugal disc 1, the molten droplets 4 impact the deposition layer of the formed workpiece 3 and are reflected. The reflected molten droplets 4 are then captured by the hot-melt material 2 after impacting it.

[0031] The molten metal droplet 4 is a highly heated liquid droplet. When the droplet 4 impacts the molten material 2, it can instantly soften the molten material 2. At this time, the droplet 4 will be embedded or penetrate into the molten material 2, losing the kinetic energy to be reflected again, thus preventing it from impacting the deposition layer. This fundamentally solves the problem of the reflected droplet 4 impacting the deposition layer again.

[0032] In this embodiment, a circumferential annular groove is provided at the edge of the centrifugal disc 1, and the hot melt material 2 is wound inside the circumferential annular groove. The width of the circumferential annular groove is greater than the height of the formed workpiece 3, which expands the capture area of ​​the hot melt material 2 for the molten droplets 4.

[0033] The hot melt material 2 can be any of asphalt, plastic, or hot melt adhesive. In use, materials such as asphalt, plastic, or hot melt adhesive can be made into strips and then wrapped around the circumferential groove.

[0034] Reference Figure 5 A further improvement to the technical solution involves providing a cooling chamber 13 within the centrifugal disc 1, into which coolant is circulated. Furthermore, the molten metal pool 11 is cylindrical and made of high-temperature resistant insulating material. The molten metal pool 11 is embedded in the centrifugal disc 1, thus preventing the molten metal in the pool 11 from transferring heat to the centrifugal disc 1.

[0035] A cooling chamber 13 is provided inside the centrifugal disc 1. On the one hand, the molten droplets 4 can be cooled and reach a semi-solid state before impacting the deposition layer. On the other hand, the temperature of the centrifugal disc 1 itself can be reduced to prevent the hot molten material 2 from being melted by the centrifugal disc 1.

[0036] The hot melt material 2 needs to be replaced periodically, and the replaced hot melt material 2 contains solidified metal material. In order to recover the metal material, the hot melt material 2 can be removed by hot melting, and the metal material can be filtered out.

[0037] The parts not detailed herein are prior art. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-reflective centrifuge disc, comprising a molten liquid pool and a liquid-spraying trough, characterized in that: The edge part of the centrifugal disc is wrapped with a ring of hot melt material, which is any one of asphalt, plastic and hot melt adhesive; during operation, the centrifugal disc rotates, the molten drops are thrown from the centrifugal disc, impact the deposition layer and are reflected, the reflected molten drops are captured by the hot melt material after impacting the hot melt material; the cooling cavity is arranged in the centrifugal disc, and the cooling liquid is introduced into the cooling cavity; on one hand, the cooling liquid can cool the molten drops and make the molten drops reach a semi-solid state before impacting the deposition layer; on the other hand, the cooling liquid can reduce the temperature of the centrifugal disc and prevent the hot melt material from being melted by the centrifugal disc.

2. An anti-reflection centrifugal disk as claimed in claim 1, characterized in that: The edge part of the centrifugal disc is provided with a circumferential ring groove, and the hot melt material is wrapped in the circumferential ring groove.

3. An anti-reflection centrifugal disc as claimed in claim 2, characterized in that: The width of the circumferential ring groove is greater than the height of the formed workpiece.

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