Standby rapid hardening device for neodymium-iron-boron alloy

Abstract

The utility model discloses a neodymium-iron-boron alloy standby rapid hardening device which comprises a cooling roller body, a forward bin and a steering bin, a plurality of forward cooling channels are arranged on the outer side of the cooling roller in the circumferential direction, and a reverse cooling channel is arranged between every two adjacent forward cooling channels. A plurality of forward supports inserted into the forward cooling channels are arranged on the outer side of the forward bin in the circumferential direction, and a plurality of reverse supports inserted into the reverse cooling channels are arranged on the outer side of the steering bin in the circumferential direction. Water can be continuously supplied from the two ends of the cooling roller body through the forward cooling channel and the reverse cooling channel, the bidirectional cooling effect is provided for the cooling roller body, cooling liquid is allowed to approach a target area in two directions, hot spots are reduced, the overall cooling efficiency is improved, and therefore the heat exchange efficiency of the surface of the cooling roller body is improved; therefore, heat can be taken away more quickly, and the cooling effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to neodymium iron boron alloy rapid solidification process technical field especially relates to neodymium iron boron alloy standby rapid solidification device. BACKGROUND

[0002] Neodymium iron boron alloy is a kind of high-performance rare earth permanent magnet material, is widely used in motor, sensor, hard disk drive and multiple fields.In the production process of neodymium iron boron alloy, adopting rapid solidification process can obtain fine uniform grain structure, to improve the magnetic properties of final magnet.

[0003] When single-roller method is used for rapid solidification cooling, melt metal is sprayed on the cooling wheel rotating at high speed, and the melt metal is rapidly cooled to form thin strip-shaped alloy, and the obtained rapid solidification thin strip is then subjected to crushing, hydrogen explosion and other processes to be converted into powder form for subsequent pressing and sintering forming.But the single roller usually uses the way of unidirectional water inlet to cool the surface of single roller, and the temperature difference between the water inlet end and the water outlet end of the single roller may be low, which affects the cooling effect of the melt metal. UTILITARY MODEL

[0004] The utility model discloses a technical scheme in the prior art to solve the technical problems in the prior art.

[0005] The neodymium iron boron alloy standby rapid solidification device includes a cooling roller main body, a forward bin and a turning bin, the cooling roller main body is provided with a water inlet channel and a water outlet channel in the middle, the forward bin and the turning bin are inserted at both ends of the water inlet channel, a plurality of forward cooling channels are circumferentially arranged on the outer side of the cooling roller, a reverse cooling channel is arranged between adjacent two forward cooling channels, a plurality of forward supports are circumferentially arranged on the outer side of the forward bin and inserted into the forward cooling channels, and a plurality of reverse supports are circumferentially arranged on the outer side of the turning bin and inserted into the reverse cooling channels.

[0006] As a preferred technical scheme of the above technical scheme, the cooling roller main body is provided with a water inlet portion at one end of the forward bin, the water inlet portion is fixedly connected with the cooling roller main body, the one end of the forward bin is provided with a connecting pipe, and the end of the connecting pipe is fixedly connected with the water inlet portion.

[0007] As a preferred technical scheme of the above technical scheme, the end of the water inlet portion is rotatably sleeved with a water inlet pipe, and one end of the water inlet pipe is connected with an external supply device.

[0008] As a preferred technical scheme of the above technical scheme, the cooling roller main body is provided with a water outlet portion at one end of the water outlet bin, and the water outlet portion is fixedly connected with the cooling roller main body.

[0009] As a preferred technical scheme of the above technical scheme, the end of the water outlet portion is rotatably sleeved with a water outlet pipe, and one end of the water outlet pipe is connected with an external recovery device.

[0010] The utility model has the advantages that:

[0011] 1. The forward and reverse cooling channels can continuously supply water from both ends of the cooling roller body, providing a bidirectional cooling effect. This allows the coolant to approach the target area from both directions, helping to reduce hot spots and improve overall cooling efficiency. This improves the heat exchange efficiency of the cooling roller body surface, allowing heat to be carried away more quickly and significantly enhancing the cooling effect.

[0012] 2. The inlet section can guide the coolant to the forward flow compartment while providing storage space for the reverse flow coolant, making it convenient for the reverse flow coolant to turn and flow out normally through the outlet channel, thus avoiding affecting the forward flow coolant. Attached Figure Description

[0013] Fig. 1 The diagram shown is a schematic representation of the overall structure of the embodiment;

[0014] Fig. 2 The diagram shown is an exploded view of an embodiment;

[0015] Fig. 3 The diagram shown is a top sectional view of an embodiment.

[0016] In the diagram: 10. Cooling roller body; 11. Water inlet channel; 12. Water outlet channel; 13. Forward cooling channel; 14. Reverse cooling channel; 20. Forward chamber; 21. Forward support; 22. Connecting pipe; 30. Turning chamber; 31. Reverse support; 40. Water inlet; 50. Water inlet pipe; 60. Water outlet; 70. Water outlet pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings.

[0018] Figs. 1-3 The NdFeB alloy standby rapid solidification device includes: a cooling roller body 10, a forward chamber 20, and a turning chamber 30. The cooling roller body 10 is provided with a water inlet channel 11 and a water outlet channel 12 in the middle. The forward chamber 20 and the turning chamber 30 are inserted into the two ends of the water inlet channel 11. Multiple forward cooling channels 13 are provided circumferentially on the outer side of the cooling roller. A reverse cooling channel 14 is provided between two adjacent forward cooling channels 13. Multiple forward supports 21 inserted into the forward cooling channels 13 are provided circumferentially on the outer side of the forward chamber 20. Multiple reverse supports 31 inserted into the reverse cooling channels 14 are provided circumferentially on the outer side of the turning chamber 30.

[0019] Through the set forward cooling channel 13 and reverse cooling channel 14, water can be continuously supplied from both ends of the cooling roller body 10, providing a bidirectional cooling effect for the cooling roller body 10, allowing the cooling liquid to approach the target area from two directions, helping to reduce hot spots and improve overall cooling efficiency, thereby improving the heat exchange efficiency of the surface of the cooling roller body 10, so that heat is taken away faster, greatly improving the cooling effect.

[0020] Figs. 2-3 In the embodiment, the cooling roller body 10 is provided with a water inlet portion 40 at one end of the forward chamber 20, the water inlet portion 40 is fixedly connected with the cooling roller body 10, and the forward chamber 20 is provided with a connecting pipe 22 at one end, and the end of the connecting pipe 22 is fixedly connected with the water inlet portion 40.

[0021] The end of the water inlet portion 40 is rotatably sleeved with a water inlet pipe 50, and one end of the water inlet pipe 50 is connected with an external supply device.

[0022] The cooling roller body 10 is provided with a water outlet portion 60 at one end of the water outlet chamber, and the water outlet portion 60 is fixedly connected with the cooling roller body 10.

[0023] The end of the water outlet portion 60 is rotatably sleeved with a water outlet pipe 70, and one end of the water outlet pipe 70 is connected with an external recovery device.

[0024] The water inlet portion 40 can guide the cooling liquid to the forward chamber 20 while providing storage space for the reverse flowing cooling liquid, facilitating the normal outflow of the reverse flowing cooling liquid by turning through the water outlet channel 12, and avoiding affecting the normal flow of the cooling liquid.

[0025] Working principle: when using the rapid solidification device, the external supply device continuously injects the cooling liquid into the water inlet portion 40 from the water inlet pipe 50, because the connecting pipe 22 connects the inlet of the water inlet portion 40 with the connecting pipe 22, the cooling liquid enters the forward chamber 20 along the connecting pipe 22 and is divided, a part of the cooling liquid enters the turning chamber 30 from the water inlet channel 11, and the other part of the cooling liquid is divided into a plurality of forward supports 21, the cooling liquid in the forward support 21 enters the water outlet portion 60 along the forward cooling channel 13, and the cooling liquid in the turning chamber 30 is divided and flows to the reverse cooling channel 14 along the forward support 21, the cooling liquid in the reverse cooling channel 14 flows to the water inlet portion 40 and enters the water outlet portion 60 through the water outlet channel 12, the two parts of the cooling liquid are combined in the water outlet portion 60 and flow out from the water outlet pipe 70, and after recovery treatment, they are used again.

[0026] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto.

Claims

1. A neodymium iron boron alloy standby quenching device, characterized by, The application relates to a cooling roller body (10) provided with water inlet channels (11) and water outlet channels (12) in the middle part, and a forward warehouse (20) and a reverse warehouse (30) inserted at both ends of the water inlet channels (11), a plurality of forward cooling channels (13) are circumferentially arranged outside the cooling roller, a reverse cooling channel (14) is arranged between two adjacent forward cooling channels (13), a plurality of forward supports (21) inserted into the forward cooling channels (13) are circumferentially arranged outside the forward warehouse (20), and a plurality of reverse supports (31) inserted into the reverse cooling channels (14) are circumferentially arranged outside the reverse warehouse (30). The cooling roller body (10) is provided with a water inlet part (40) at one end of the forward warehouse (20), the water inlet part (40) is fixedly connected with the cooling roller body (10), and the forward warehouse (20) is provided with a connecting pipe (22) at one end, and the end of the connecting pipe (22) is fixedly connected with the water inlet part (40).

2. The neodymium iron boron alloy backup quenching device of claim 1, wherein, The end of the water inlet part (40) is rotatably sleeved with a water inlet pipe (50), and one end of the water inlet pipe (50) is connected with an external supply device.

3. The neodymium iron boron alloy backup quenching device of claim 2, wherein, The cooling roller body (10) is provided with a water outlet part (60) at one end of a water outlet warehouse, and the water outlet part (60) is fixedly connected with the cooling roller body (10).

4. The neodymium iron boron alloy backup quench device of claim 1, wherein, The end of the water outlet part (60) is rotatably sleeved with a water outlet pipe (70), and one end of the water outlet pipe (70) is connected with an external recovery device.

5. The NdFeB alloy backup quenching device of claim 4, wherein, ​

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