Amorphous ribbon cooling roll

Abstract

The application relates to the technical field of amorphous alloy preparation, and discloses an amorphous strip cooling roller, which comprises a cooling pipe, the inner wall of the cooling pipe is fixedly connected with a partition plate, the partition plate divides the cooling pipe into a first liquid inlet cavity and a first liquid outlet cavity, a plurality of first liquid inlet holes are arranged on the cooling pipe at the first liquid inlet cavity, a plurality of first liquid outlet holes are arranged on the cooling pipe at the first liquid outlet cavity, and a cooling assembly is arranged on the surface of the cooling pipe. The amorphous strip cooling roller is designed by constructing a plurality of independent unit flow channels, the flow process, resistance and heat exchange condition of the cooling liquid in the whole area of the roller surface are highly consistent, the uniformity of roller surface cooling and the heat exchange intensity are improved, the cooling assembly is easy to disassemble in a modular assembly mode, the flow channel is convenient to maintain, clean and check, and the maintenance cost in the whole life cycle is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of amorphous alloy preparation technology, specifically to an amorphous strip cooling roller. Background Technology

[0002] In the preparation of amorphous alloy strips, high-temperature alloy melt is sprayed onto the surface of a high-speed rotating cooling roller at extremely high speeds, achieving ultra-fast cooling at the level of millions of degrees Celsius per second. This suppresses crystal nucleation and growth, resulting in an amorphous structure. The cooling efficiency and uniformity of the cooling roller directly determine the strip's forming quality, thickness uniformity, and amorphous formation capability.

[0003] Traditional cooling rollers typically introduce coolant through a single spiral or axial flow channel within the roller body. This design suffers from significant temperature rise in the coolant along the flow path and uneven temperature distribution on the roller surface (circumferential and axial), which can lead to fluctuations in strip thickness, crystallization, or stress concentration. Furthermore, the traditional structure becomes increasingly inadequate in terms of cooling uniformity when dealing with demands for higher cooling efficiency and wider strip production. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an amorphous ribbon cooling roller with multiple parallel cooling channels and a short flow path, achieving advantages such as extremely high and uniform cooling intensity on the roller surface. This solves the problems of uneven cooling and limited heat exchange efficiency in existing cooling rollers.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned multi-parallel, short-flow cooling channels and thus realize extremely high and uniform cooling intensity on the roller surface, the present invention provides the following technical solution: an amorphous ribbon cooling roller, comprising a cooling tube, wherein a partition is fixedly connected to the inner wall of the cooling tube, the partition dividing the cooling tube into a first liquid inlet chamber and a first liquid outlet chamber, wherein a plurality of first liquid inlet holes are provided on the cooling tube at the first liquid inlet chamber, and a plurality of first liquid outlet holes are provided on the cooling tube at the first liquid outlet chamber, and a cooling assembly is provided on the surface of the cooling tube;

[0008] The cooling assembly includes a roller core fixedly sleeved on the surface of the cooling pipe. The roller core has several independent second liquid inlet chambers and several independent second liquid outlet chambers alternately opened along its circumference. A sealing ring is sleeved on the surface of the roller core. The sealing ring has several guide grooves opened inside. Adjacent second liquid inlet chambers and second liquid outlet chambers are connected through the guide grooves and connected in series to form a U-shaped cooling channel unit.

[0009] The outer surface of the sealing ring is tightly covered with a surface plate for contacting and cooling the amorphous strip. The surface of the cooling pipe and the left and right sides of the roller core are sealed with connecting rings. The two connecting rings are respectively sealed and fitted to the two end faces of the roller core. Each connecting ring has a number of flow holes that match the number of the second liquid inlet chamber and the second liquid outlet chamber and are connected. The outer sides of the two connecting rings are sealed and fixed by sealing flanges.

[0010] Preferably, the flow hole on the left connects the first liquid inlet chamber to each of the second liquid inlet chambers through the first liquid inlet hole, and the flow hole on the right connects the first liquid outlet chamber to each of the second liquid outlet chambers through the first liquid outlet hole.

[0011] Preferably, the second liquid inlet chamber and the second liquid outlet chamber are alternately distributed inside the roller core, and the openings of the second liquid inlet chamber and the second liquid outlet chamber are opposite.

[0012] Preferably, the guide channel includes an inlet guide channel and an outlet guide channel formed on the inner sidewall of the sealing ring, a plurality of first through holes communicating with the inlet guide channel, and a plurality of second through holes communicating with the outlet guide channel.

[0013] Preferably, the guide groove further includes a plurality of connecting channels formed on the surface of the sealing ring, each of the connecting channels connecting a first through hole and a second through hole respectively.

[0014] Preferably, a sealing ring is provided at the contact point between the sealing flange and the connecting ring, and the sealing flange and the connecting ring are fixed by bolts.

[0015] Preferably, a sealing ring is provided at the contact point between the connecting ring and the roller core, and the connecting ring and the roller core are fixed by bolts.

[0016] Preferably, the surface plate is a metal plate with high thermal conductivity, which is fixedly wrapped around the outer surface of the sealing ring by an interference fit.

[0017] Preferably, the connection between the partition and the inner wall of the cooling pipe is welding, ensuring complete sealing and isolation between the first liquid inlet chamber and the first liquid outlet chamber.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides an amorphous ribbon cooling roller, which has the following beneficial effects:

[0020] 1. This amorphous ribbon cooling roller decomposes the cooling channel into multiple individual U-shaped unit channels with consistent structural dimensions, ensuring that the flow, resistance and heat exchange conditions of each unit channel are basically consistent, thereby achieving temperature uniformity on the roller surface and thus stably producing high-quality amorphous ribbons with consistent thickness and excellent performance.

[0021] 2. When the flow channels of this amorphous ribbon cooling roller need to be inspected or maintained, only the flange and connecting ring need to be removed to completely remove the external cooling components, exposing all internal flow channels. This modular design greatly simplifies the maintenance process, facilitates cleaning, descaling, or replacement, and reduces the total lifecycle maintenance cost of the equipment. Attached Figure Description

[0022] Figure 1 This is a perspective view of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection structure between the cooling pipe and the connecting ring in this invention;

[0025] Figure 4 This is a schematic diagram of the structure of the second liquid inlet chamber and the second liquid outlet chamber in this invention;

[0026] Figure 5 This is a left view of the structure of the connecting loop in this invention;

[0027] Figure 6 This is a right view of the structure of the connecting loop in this invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the sealing ring and the guide groove in this invention.

[0029] In the figure: 1 Cooling pipe, 2 Baffle, 3 First liquid inlet chamber, 4 First liquid outlet chamber, 5 First liquid inlet hole, 6 First liquid outlet hole, 7 Cooling assembly, 701 Roller core, 702 Second liquid inlet chamber, 703 Second liquid outlet chamber, 704 Sealing ring, 705 Guide groove, 7051 Liquid inlet guide groove, 7052 Liquid outlet guide groove, 7053 First through hole, 7054 Second through hole, 7055 Connecting flow channel, 706 Surface plate, 707 Connecting ring, 708 Flow hole, 709 Sealing flange. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-7 A cooling roller for amorphous ribbon includes a cooling tube 1. A partition 2 is fixedly connected to the inner wall of the cooling tube 1. The partition 2 is connected to the inner wall of the cooling tube 1 by welding to ensure complete sealing and isolation between the first liquid inlet chamber 3 and the first liquid outlet chamber 4. The partition 2 divides the cooling tube 1 into the first liquid inlet chamber 3 and the first liquid outlet chamber 4. A number of first liquid inlet holes 5 are opened on the cooling tube 1 at the first liquid inlet chamber 3, and a number of first liquid outlet holes 6 are opened on the cooling tube 1 at the first liquid outlet chamber 4. A cooling assembly 7 is provided on the surface of the cooling tube 1.

[0032] The cooling assembly 7 includes a roller core 701 fixedly sleeved on the surface of the cooling pipe 1. The roller core 701 has several independent second liquid inlet chambers 702 and several independent second liquid outlet chambers 703 alternately opened along its circumference. The second liquid inlet chambers 702 and the second liquid outlet chambers 703 are alternately distributed inside the roller core 701. The openings of the second liquid inlet chambers 702 and the second liquid outlet chambers 703 are opposite. A sealing ring 704 is sleeved on the surface of the roller core 701. The sealing ring 704 has several guide grooves 705 opened inside its interior. Adjacent second liquid inlet chambers 702 and second liquid outlet chambers 703 are connected through the guide grooves 705.

[0033] The guide channel 705 includes an inlet guide channel 7051 and an outlet guide channel 7052 formed on the inner wall of the sealing ring 704, a plurality of first through holes 7053 communicating with the inlet guide channel 7051, a plurality of second through holes 7054 communicating with the outlet guide channel 7052, and a plurality of connecting channels 7055 formed on the surface of the sealing ring 704. Each connecting channel 7055 connects a first through hole 7053 and a second through hole 7054 respectively, thereby forming a U-shaped cooling channel unit.

[0034] The outer surface of the sealing ring 704 is tightly fitted and covered with a surface plate 706 for contacting and cooling the amorphous ribbon. The surface plate 706 is a metal plate with high thermal conductivity, which is fixedly wrapped around the outer surface of the sealing ring 704 by an interference fit to form the final working roller surface.

[0035] A connecting ring 707 is sealed and installed on the surface of the cooling pipe 1 and on both sides of the roller core 701. The two connecting rings 707 are respectively sealed and fitted to the two end faces of the roller core 701. A sealing ring is provided at the fitting point between the connecting ring 707 and the roller core 701. The connecting ring 707 and the roller core 701 are fixed by bolts. Each connecting ring 707 has a number of flow holes 708 that match the number of the second liquid inlet chamber 702 and the second liquid outlet chamber 703 and are connected to each other.

[0036] Specifically, the flow hole 708 of the left connecting ring 707 connects the first liquid inlet chamber 3 to each of the second liquid inlet chambers 702 through the first liquid inlet hole 5, forming a coolant distribution channel; the flow hole 708 of the right connecting ring 707 connects the first liquid outlet chamber 4 to each of the second liquid outlet chambers 703 through the first liquid outlet hole 6, forming a coolant collection channel.

[0037] Both connecting rings 707 are sealed and fixed on the outside by sealing flanges 709. A sealing ring is provided at the contact point between the sealing flange 709 and the connecting ring 707, and the sealing flange 709 and the connecting ring 707 are fixed by bolts.

[0038] The flow hole 708 on the left connects the first liquid inlet chamber 3 to each of the second liquid inlet chambers 702 through the first liquid inlet hole 5, forming a coolant distribution channel. The flow hole 708 on the right connects the first liquid outlet chamber 4 to each of the second liquid outlet chambers 703 through the first liquid outlet hole 6, forming a coolant collection channel.

[0039] The working principle of this invention is as follows:

[0040] Coolant is injected from one end of cooling pipe 1 through a rotary joint into the first inlet chamber 3, which is separated by partition plate 2. Under pressure, the coolant flows out evenly through the first inlet hole 5 on the wall of cooling pipe 1, enters the connecting ring 707 on the left, and is precisely distributed to each independent second inlet chamber 702 in roller core 701 through the flow hole 708 inside.

[0041] Subsequently, the coolant enters the corresponding inlet guide groove 7051 within the sealing ring 704 from each of the second inlet chambers 702, and then flows into the connecting channel 7055 through the first through hole 7053. Due to the blockage by the surface plate 706, the coolant flows through the connecting channel 7055 into the adjacent outlet guide groove 7052. During this process, the coolant flow path is U-shaped in the radial section, and multiple such U-shaped loops are distributed in parallel in the circumferential direction. When the coolant flows through these guide grooves that are close to the surface plate 706, it undergoes efficient heat conduction through the metal wall of the sealing ring 704, rapidly carrying away the heat absorbed by the surface plate 706 from the high-temperature amorphous melt.

[0042] After heat exchange, the coolant flows from each outlet guide groove 7052 into the second outlet chamber 703 corresponding to the roller core 701. Then, through the flow hole 708 of the right connecting ring 707 and the first outlet hole 6 on the cooling pipe 1, it gathers into the first outlet chamber 4 separated by the partition plate 2, and finally exits from the other end of the cooling pipe 1 through the rotary joint, completing a closed cooling cycle.

[0043] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0044] 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 alterations 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. A cooling roller for amorphous ribbon, comprising a cooling tube (1), characterized in that: A partition (2) is fixedly connected to the inner wall of the cooling pipe (1). The partition (2) divides the cooling pipe (1) into a first liquid inlet chamber (3) and a first liquid outlet chamber (4). A number of first liquid inlet holes (5) are opened on the cooling pipe (1) at the first liquid inlet chamber (3). A number of first liquid outlet holes (6) are opened on the cooling pipe (1) at the first liquid outlet chamber (4). A cooling assembly (7) is provided on the surface of the cooling pipe (1). The cooling assembly (7) includes a roller core (701) fixedly sleeved on the surface of the cooling pipe (1). The roller core (701) has several independent second liquid inlet chambers (702) and several independent second liquid outlet chambers (703) alternately opened along its circumference. The surface of the roller core (701) is fitted with a sealing ring (704). The sealing ring (704) has several guide grooves (705) opened inside. Adjacent second liquid inlet chambers (702) and second liquid outlet chambers (703) are connected through the guide grooves (705) and connected in series to form a U-shaped cooling channel unit. The outer surface of the sealing ring (704) is tightly covered with a surface plate (706) for contacting and cooling the amorphous strip. The surface of the cooling pipe (1) and the left and right sides of the roller core (701) are sealed with connecting rings (707). The two connecting rings (707) are respectively sealed and fitted with the two end faces of the roller core (701). Each connecting ring (707) has a number of flow holes (708) that match the number of the second liquid inlet chamber (702) and the second liquid outlet chamber (703) and are connected. The outer sides of the two connecting rings (707) are sealed and fixed by sealing flanges (709).

2. The amorphous ribbon cooling roller according to claim 1, characterized in that: The flow hole (708) on the left connects the first liquid inlet chamber (3) to each of the second liquid inlet chambers (702) through the first liquid inlet hole (5), and the flow hole (708) on the right connects the first liquid outlet chamber (4) to each of the second liquid outlet chambers (703) through the first liquid outlet hole (6).

3. The amorphous ribbon cooling roller according to claim 2, characterized in that: The second liquid inlet chamber (702) and the second liquid outlet chamber (703) are alternately distributed inside the roller core (701), and the openings of the second liquid inlet chamber (702) and the second liquid outlet chamber (703) are opposite.

4. The amorphous ribbon cooling roller according to claim 1, characterized in that: The guide channel (705) includes an inlet guide channel (7051) and an outlet guide channel (7052) formed on the inner side wall of the sealing ring (704), a plurality of first through holes (7053) communicating with the inlet guide channel (7051), and a plurality of second through holes (7054) communicating with the outlet guide channel (7052).

5. The amorphous ribbon cooling roller according to claim 4, characterized in that: The guide groove (705) also includes a plurality of connecting channels (7055) formed on the surface of the sealing ring (704), each of the connecting channels (7055) connecting a first through hole (7053) and a second through hole (7054) respectively.

6. The amorphous ribbon cooling roller according to claim 1, characterized in that: A sealing ring is provided at the contact point between the sealing flange (709) and the connecting ring (707), and the sealing flange (709) and the connecting ring (707) are fixed by bolts.

7. The amorphous ribbon cooling roller according to claim 1, characterized in that: A sealing ring is provided at the contact point between the connecting ring (707) and the roller core (701), and the connecting ring (707) and the roller core (701) are fixed by bolts.

8. The amorphous ribbon cooling roller according to claim 1, characterized in that: The surface plate (706) is a metal plate with high thermal conductivity, which is fixedly wrapped around the outer surface of the sealing ring (704) by an interference fit.

9. The amorphous ribbon cooling roller according to claim 1, characterized in that: The connection between the partition (2) and the inner wall of the cooling pipe (1) is by welding, ensuring complete sealing and isolation between the first liquid inlet chamber (3) and the first liquid outlet chamber (4).

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