Cooling roller for amorphous nanocrystalline strip

Abstract

The utility model provides a cooling roller for amorphous nanocrystalline strips, which relates to the technical field of alloy strip preparation devices, and is characterized in that a main shaft is arranged in a main waterway disc in a penetrating manner, the main waterway disc comprises a confluence layer, a shunting layer and an intersection layer which are sequentially arranged outwards in the radial direction of the main shaft and are communicated with one another, and a net-shaped waterway is arranged in the intersection layer; the main shaft is provided with a water inlet cavity and a water return cavity, and the water inlet cavity and the water return cavity communicate with the corresponding confluence layers correspondingly. The inner wall of the copper roller is provided with a plurality of water tanks which are communicated with the intersection layer; cooling water flows in from the water inlet cavity, then sequentially flows through the confluence layer, the diversion layer and the intersection layer, enters a water tank of the copper roller for cooling, then sequentially flows through the intersection layer, the diversion layer and the confluence layer and finally flows out from the water return cavity. The cooling device has the beneficial effects that water paths are reasonably divided, so that cooling water can uniformly flow through the cooling rollers, and an ideal cooling effect is achieved; and the net-shaped water paths are distributed in the intersection layer, cooling water is uniformly distributed on the surface of the copper roller, the cooling uniformity is improved, and the performance of the strip is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy strip preparation devices, in particular to a cooling roller for amorphous and nanocrystalline strips. Background Art

[0002] Amorphous and nanocrystalline alloy strips have a glassy atomic structure. With their high saturation magnetic induction intensity, low iron loss, low coercivity, low excitation current, and excellent stability, they meet the needs of today's electronic products for high-frequency, high-current, miniaturization, and energy-saving development. They can replace silicon steel, permalloy, and ferrite and are widely used in power and electronic products.

[0003] With the development of science and technology, various power electronic devices also put forward higher requirements for the quality stability of amorphous and nanocrystalline alloy strips and the consistency of size specifications such as thickness and width. The production of amorphous and nanocrystalline alloy strips usually adopts the ultra-rapid cooling technology to directly spray the molten alloy liquid onto the surface of a rapidly rotating cooling roller and directly cool it at a speed of millions of degrees per second, thereby forming an alloy strip with a thickness less than 40 μm. It can be seen that the cooling efficiency of the cooling roller directly affects the quality of the alloy strip.

[0004] Although conventional cooling rollers can be adapted to the production of amorphous and nanocrystalline narrow strips (strips with a width less than 60 mm), their water channel structure is unreasonable, and the cooling water is unevenly distributed on the surface of the copper roller, resulting in great differences in the performance of the strips. Moreover, the cooling roller has a high cost and is difficult to process. There are also some cooling rollers that adopt a water channel structure with multiple inlets and multiple outlets, but they need to supply the flow requirements of multiple inlets and outlets through a large water flow rate, which is relatively suitable for the preparation of wide strips. Applying it to the preparation of narrow strips will cause great waste of cooling water. Content of the Utility Model

[0005] In view of the problems existing in the prior art, the utility model provides a cooling roller for amorphous and nanocrystalline strips, including:

[0006] A main water channel disk, in which a main shaft is penetrated. The main water channel disk includes a confluence layer, a diversion layer, and an intersection layer that are arranged in sequence radially outward along the main shaft and are interconnected. The intersection layer has a mesh water channel;

[0007] One end of the main shaft is provided with a water inlet cavity, and the other end of the main shaft is provided with a water return cavity. The water inlet cavity and the water return cavity are respectively communicated with the corresponding confluence layer;

[0008] A copper roller, sleeved outside the main water channel disk. A plurality of water grooves are provided on the inner wall of the copper roller, and each water groove is communicated with the intersection layer.

[0009] Preferably, the confluence layer includes a plurality of water inlet holes and a plurality of water return holes. A number of partition bars are provided between each of the water inlet holes and each of the water return holes. A number of partition plates are evenly provided on the partition bars, and the partition plates on adjacent partition bars are staggered;

[0010] The cooling water flowing from the water inlet holes to the water return holes is blocked by each of the partition bars and each of the partition plates to form the mesh water channels.

[0011] Preferably, each of the water inlet holes is arranged in a ring in the confluence layer and is located on one side close to the water inlet cavity, and each of the water return holes is arranged in a ring in the confluence layer and is located on one side close to the water return cavity.

[0012] Preferably, the confluence layer includes a water inlet confluence layer on one side close to the water inlet cavity and a water return confluence layer on one side close to the water return cavity;

[0013] The water inlet cavity and the water inlet confluence layer are communicated through a plurality of first water inlet channels;

[0014] The water return cavity and the water return confluence layer are communicated through a plurality of first water return channels.

[0015] Preferably, the diversion layer includes a water inlet diversion layer on one side close to the water inlet cavity and a water return diversion layer on one side close to the water return cavity;

[0016] Each of the water inlet holes is communicated with the water inlet diversion layer;

[0017] Each of the water return holes is communicated with the water return diversion layer.

[0018] Preferably, the water inlet diversion layer includes a second water inlet channel and a water inlet inner cavity, and the second water inlet channel communicates the confluence layer and the water inlet inner cavity;

[0019] The water return diversion layer includes a second water return channel and a water return inner cavity, and the second water return channel communicates the confluence layer and the water return inner cavity.

[0020] Preferably, each of the water inlet holes and each of the water return holes are flat holes.

[0021] Preferably, the first water inlet channel and the first water return channel are through holes.

[0022] Preferably, the water flow direction in the confluence layer and the diversion layer is along the radial direction of the main axis, and the water flow direction in the confluence layer is along the axial direction of the main axis.

[0023] The above technical solution has the following advantages or beneficial effects: By planning the water path of the cooling water in the cooling roll for amorphous nanocrystalline strip through the confluence layer, the shunt layer and the intersection layer, the cooling water can flow evenly through the cooling roll to achieve an ideal cooling effect; A reticular water path is distributed in the intersection layer, and the intersection layer communicates with the water tank in the copper roll, so that the cooling water is evenly distributed on the surface of the copper roll, improving the uniformity of cooling and helping to improve the performance of the strip. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of the cooling roll for amorphous nanocrystalline strip of the present invention;

[0025] Figure 2 It is a sectional view of the cooling roll for amorphous nanocrystalline strip of the present invention along the axial direction of the main shaft with the first water inlet channel as the center;

[0026] Figure 3 It is a sectional view of the cooling roll for amorphous nanocrystalline strip of the present invention along the axial direction of the main shaft with the first water return channel as the center;

[0027] Figure 4 It is a schematic diagram of the water flow of the cooling roll for amorphous nanocrystalline strip of the present invention;

[0028] Figure 5 It is a sectional view of the intersection layer of the cooling roll for amorphous nanocrystalline strip of the present invention;

[0029] Figure 6 It is a schematic diagram of the cooling water flow direction of the reticular water path of the intersection layer of the cooling roll for amorphous nanocrystalline strip of the present invention;

[0030] Figure 7 It is a sectional view of the water inlet cavity side of the cooling roll for amorphous nanocrystalline strip of the present invention;

[0031] Figure 8 It is a sectional view of the water return cavity side of the cooling roll for amorphous nanocrystalline strip of the present invention.

[0032] In the drawings: 1. Main water path plate; 11. Confluence layer; 111. Inlet confluence layer; 112. First water inlet channel; 113. Return water confluence layer; 114. First water return channel; 12. Shunt layer; 121. Inlet shunt layer; 1211. Second water inlet channel; 1212. Inlet inner cavity; 122. Return water shunt layer; 1221. Second water return channel; 1222. Return water inner cavity; 13. Intersection layer; 131. Water inlet hole; 132. Water return hole; 133. Partition bar; 134. Partition plate; 2. Main shaft; 21. Water inlet cavity; 22. Water return cavity; 3. Copper roll; 31. Water tank. Detailed Embodiments

[0033] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The present utility model is not limited to this embodiment, and other embodiments also belong to the scope of the present utility model as long as they conform to the gist of the present utility model.

[0034] In a preferred embodiment of the present utility model, in view of the above problems existing in the prior art, a cooling roller for amorphous nanocrystalline strip is provided, including:

[0035] A main water channel plate 1, in which a main shaft 2 is penetrated. The main water channel plate 1 includes a confluence layer 11, a shunt layer 12 and an intersection layer 13 which are arranged in sequence radially outward along the main shaft 2 and are interconnected. The intersection layer 13 has a mesh water channel;

[0036] One end of the main shaft 2 is provided with a water inlet cavity 21, and the other end of the main shaft 2 is provided with a water return cavity 22. The water inlet cavity 21 and the water return cavity 22 are respectively communicated with the corresponding confluence layer 11;

[0037] A copper roller 3, sleeved outside the main water channel plate 1. A plurality of water grooves 31 are provided on the inner wall of the copper roller 3, and each water groove 31 is communicated with the intersection layer 13;

[0038] Cooling water flows in from the water inlet cavity 21, then sequentially flows through the confluence layer 11, the shunt layer 12 and the intersection layer 13, enters the water grooves 31 of the copper roller 3 for cooling, and then sequentially flows through the intersection layer 13, the shunt layer 12 and the confluence layer 11 and finally flows out from the water return cavity 22.

[0039] Specifically, in this embodiment, as Figure 1 shown, a main shaft 2 is penetrated in the main water channel plate 1. Water inlet cavities 21 and a water return cavity 22 are respectively provided at both ends of the main shaft 2 for water inlet and outlet, so that the cooling water flows through the water grooves 31 in the copper roller 3 for cooling;

[0040] Although the conventional cooling roller can be adapted to the production and preparation of amorphous nanocrystalline narrow strips (referring to strips with a width less than 60 mm), its water channel structure is unreasonable. In this embodiment, the water channels of the cooling water in the cooling roller for amorphous nanocrystalline strips are planned through the confluence layer 11, the shunt layer 12 and the intersection layer 13, so that the cooling water can flow through the cooling roller evenly and achieve an ideal cooling effect; and a mesh water channel is distributed in the intersection layer 13, and the intersection layer 13 is communicated with the water grooves 31 in the copper roller 3, so that the cooling water is evenly distributed on the surface of the copper roller 3, improving the uniformity of cooling and helping to improve the performance of the strip.

[0041] In a preferred embodiment of the present utility model, as Figure 2 and Figure 3 shown, the confluence layer 11 includes a water inlet confluence layer 111 close to the water inlet cavity 21 and a water return confluence layer 113 close to the water return cavity 22;

[0042] The water inlet cavity 21 and the water inlet confluence layer 111 are connected through a plurality of first water inlet channels 112;

[0043] The water return cavity 22 and the water return confluence layer 113 are connected through a plurality of first water return channels 114.

[0044] The flow splitting layer 12 includes a water inlet flow splitting layer 121 on the side close to the water inlet cavity 21 and a water return flow splitting layer 122 on the side close to the water return cavity 22;

[0045] As Figure 5 shown, the confluence layer 13 includes a plurality of water inlet holes 131 and a plurality of water return holes 132. Each water inlet hole 131 is connected to the water inlet flow splitting layer 121; each water return hole 132 is connected to the water return flow splitting layer 122.

[0046] The water inlet flow splitting layer 121 includes a second water inlet channel 1211 and a water inlet inner cavity 1212. The second water inlet channel 1211 connects the water inlet confluence layer 111 and the water inlet inner cavity 1212;

[0047] The water return flow splitting layer 122 includes a second water return channel 1221 and a water return inner cavity 1222. The second water return channel 1221 connects the water return confluence layer 113 and the water return inner cavity 1222.

[0048] In this embodiment, the specific water flow path is as Figure 2 and Figure 3 shown. It can be seen from the figure that the cooling water flows in from the water inlet cavity 21 at one end, then flows into the water inlet confluence layer 111 through the first water inlet channel 112, and then flows from the water inlet confluence layer 111 through the second water inlet channel 1211 in the water inlet flow splitting layer 121 into the water inlet return cavity 1212 in the water inlet flow splitting layer 121. After flowing out of the water inlet return cavity 1212, it flows into the confluence layer 13. The cooling water flows from the inner side (the side connected to the flow splitting layer 12) of the confluence layer 13 to the outer side (the side sleeving the copper roller 3) of the confluence layer 13 through the water inlet holes 131 of the confluence layer 13. The cooling water flows in the axial direction of the main shaft 2 ( Figure 2 and Figure 3 and the transverse X direction in

[0049] ) of the confluence layer 13 to the other water return holes 132 on the other side, then flows from the outer side of the confluence layer 13 to the inner side of the confluence layer 13 through the water return holes 132, and then successively flows through the water return inner cavity 1222, the second water return channel 1221, the water return confluence layer 113 and the first water return channel 114 into the water return cavity 22 and finally flows out of the cooling roller for the amorphous and nanocrystalline strip to complete the entire cooling process. Figure 4 shown, according to the water flow paths planned by the confluence layer 11, the flow splitting layer 12 and the confluence layer 13 planned in the main water path disk 1, the cooling water can flow evenly through the entire cooling roller, achieving an ideal cooling effect and helping to improve the performance of the strip.

[0050] In a preferred embodiment of the present utility model, the intersection layer 13 includes a plurality of water inlet holes 131 and a plurality of water return holes 132. A number of partition bars 133 are provided between each water inlet hole 131 and each water return hole 132. A number of partition plates 134 are evenly provided on the partition bars 133, and the partition plates 134 on adjacent partition bars 133 are staggered;

[0051] The cooling water flowing from the water inlet hole 131 to the water return hole 132 is blocked by each partition bar 133 and each partition plate 134 to form a reticular waterway.

[0052] In a preferred embodiment of the present utility model, each water inlet hole 131 is arranged in a ring in the intersection layer 13 and is located on the side close to the water inlet cavity 21, and each water return hole 132 is arranged in a ring in the intersection layer 13 and is located on the side close to the water return cavity 22.

[0053] Specifically, in this embodiment, as Figure 5 shown is the specific structure of the reticular waterway in the intersection layer 13. A plurality of water inlet holes 131 and water return holes 132 are provided in the intersection layer 13. The water inlet holes 131 are used to allow the cooling water to flow from the inner side (the side connected to the diversion layer 12) of the intersection layer 13 to the outer side (the side sleeving the copper roller 3) of the intersection layer 13, and the water return holes 132 are used to flow from the outer side (the side sleeving the copper roller 3) of the intersection layer 13 to the inner side (the side connected to the diversion layer 12) of the intersection layer 13. A plurality of partition bars 133 are provided between each water inlet hole 131 and each water return hole 132. A number of partition plates 134 are evenly provided on the partition bars 133 to evenly divide the waterway of the intersection layer 13, and the partition plates 134 on adjacent partition bars 133 are staggered. When the cooling water passes through the intersection layer 13, it can be distributed in a reticular shape and evenly pass through the inner wall of the copper roller 3, achieving a more balanced cooling effect on the copper roller 3 and making the prepared strip more consistent. The flow direction of the cooling water in the reticular waterway is as Figure 6 shown.

[0054] In a preferred embodiment of the present utility model, each water inlet hole 131 and each water return hole 132 are flat holes.

[0055] Specifically, in this embodiment, each water inlet hole 131 and each water return hole 132 are preferably flat holes, and further preferably runway-shaped or oval-shaped, which is beneficial to the flow of the cooling water.

[0056] In a preferred embodiment of the present utility model, the first water inlet channel 112 and the first water return channel 114 are through holes.

[0057] In a preferred embodiment of the present utility model, the water flow directions in the confluence layer 11 and the diversion layer 12 are along the radial direction of the main shaft 2 ( Figure 2 the Y direction in Figure 2in the X direction).

[0058] Specifically, during the spraying process, the cooling roller rotates continuously. The centrifugal force of the outer part is relatively large. When the cooling water is ejected from the second water inlet channel 1211 or the water return hole 132, it has a certain arc. By staggering the water inlet hole 131 and the second water inlet channel 1211, and the water return hole 132 and the second water return channel 1221, it is convenient for the cooling water to flow into the water inlet hole 131 or the second water return channel 1221 more smoothly, achieving a better cooling effect.

[0059] Such as Figure 7 and Figure 8 shown, is a sectional view of the main water path plate 1 along the radial direction of the main shaft 2, Figure 7 is a sectional view on the side of the water inlet cavity 21, Figure 8 and then is a sectional view on the side of the water return cavity 22. From the comparison Figure 7 and Figure 8 it can be seen that with the same vertical direction Z as the reference, both the first water inlet channel 112 and the first water return channel 114 are arranged around the main shaft 2, but the angles are staggered. The water inlet hole 131 and the second water inlet channel 1211, and the water return hole 132 and the second water return channel 1221 are also staggered in angle, which is convenient for the cooling water to flow into the water inlet hole 131 or the second water return channel 1221 more smoothly, achieving a better cooling effect.

[0060] The above is only a preferred embodiment of the present utility model, and thus does not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be able to realize that any equivalent replacement and obvious changes made by using the content of this specification and the drawings should be included in the protection scope of the present utility model.

Claims

1. A cooling roller for amorphous nanocrystalline strip, characterized in that: include: A main waterway plate, wherein a main shaft is passed through the main waterway plate, wherein the main waterway plate comprises a confluence layer, a diversion layer and a junction layer which are sequentially arranged radially outwardly along the main shaft and are interconnected, wherein the junction layer has a mesh waterway; A water inlet cavity is provided at one end of the main shaft, and a water return cavity is provided at the other end of the main shaft, and the water inlet cavity and the water return cavity are respectively connected to the corresponding confluence layers; The copper roller is sleeved on the outer side of the main water channel plate, and the inner wall of the copper roller is provided with a plurality of water grooves, each of which is communicated with the intersection layer.

2. The cooling roller for amorphous nanocrystalline ribbon according to claim 1, characterized in that: The intersection layer includes a plurality of water inlet holes and a plurality of water return holes, and a plurality of partitions are arranged between each of the water inlet holes and each of the water return holes. A plurality of partitions are evenly arranged on the partitions, and the partitions on adjacent partitions are staggered. The cooling water flowing from the water inlet hole to the water return hole is blocked by the partition fences and the partition plates to form the mesh water channel.

3. The cooling roller for amorphous nanocrystalline ribbon according to claim 2, characterized in that: The water inlet holes are arranged in a ring shape in the intersection layer and are located on a side close to the water inlet cavity, and the water return holes are arranged in a ring shape in the intersection layer and are located on a side close to the water return cavity.

4. The cooling roller for amorphous nanocrystalline ribbon according to claim 1, characterized in that: The confluence layer includes an inlet confluence layer close to one side of the inlet cavity and a return confluence layer close to one side of the return cavity; The water inlet cavity and the water inlet confluence layer are connected via a plurality of first water inlet channels; The water return chamber and the water return confluence layer are communicated with each other through a plurality of first water return channels.

5. The cooling roller for amorphous nanocrystalline ribbon according to claim 2, characterized in that: The diversion layer includes an inlet water diversion layer close to one side of the inlet water chamber and a return water diversion layer close to one side of the return water chamber; Each of the water inlet holes is communicated with the water inlet distribution layer; Each of the water return holes is communicated with the water return branch layer.

6. The cooling roller for amorphous nanocrystalline ribbon according to claim 5, characterized in that: The water inlet distribution layer includes a second water inlet channel and a water inlet inner cavity, and the second water inlet channel communicates with the confluence layer and the water inlet inner cavity; The water return distribution layer includes a second water return channel and a water return inner cavity, and the second water return channel communicates with the confluence layer and the water return inner cavity.

7. The cooling roller for amorphous nanocrystalline ribbon according to claim 2, characterized in that: Each of the water inlet holes and each of the water return holes is a flat hole.

8. The cooling roller for amorphous nanocrystalline ribbon according to claim 4, characterized in that: The first water inlet channel and the first water return channel are through holes.

9. The cooling roller for amorphous nanocrystalline ribbon according to claim 1, characterized in that: The water flow direction in the confluence layer and the diversion layer is along the radial direction of the main axis, and the water flow direction in the intersection layer is along the axial direction of the main axis.

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