A cooling device for amorphous thin strip production

Abstract

The application relates to a cooling device for amorphous thin strip production, which comprises a cold casting roller, the cold casting roller comprises a cooling roller body, the cooling roller body comprises a main roller body, a roller shaft is inserted into the main roller body, a plurality of phase change unit mounting grooves are dug in the main roller body, a plurality of fan column phase change units matched with the sizes of the phase change unit mounting grooves are inserted into the phase change unit mounting grooves, fixed covers are fixedly connected to the openings of the phase change unit mounting grooves, the fan column phase change unit comprises an outer shell, the outer shell is filled with transparent phase change material, a light-emitting module is fixedly connected to the inner wall of the side of the outer shell close to the roller shaft, a photosensitive module is fixedly connected to the inner wall of the side of the outer shell far from the roller shaft, the light-emitting module and the photosensitive module are opposite to each other, in the amorphous thin strip production process, the cooling phase change material is always in a solid-liquid mixed state, so that the amorphous thin strip is uniformly cooled in the forming process, the yield of the formed amorphous thin strip is increased, and the economic effect of production is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a cooling device for amorphous thin strip production, in particular to a cooling device for amorphous thin strip production applied to the field of metal casting. BACKGROUND

[0002] The amorphous thin strip is a kind of metal strip with amorphous structure prepared by heating, cooling and stretching of metal raw materials, and the metal strip with amorphous structure has excellent mechanical properties, magnetic properties and chemical stability and is widely applied to the fields of electronics, machinery, automobiles and aerospace.

[0003] The Chinese patent CN109957732A discloses a method for continuously preparing zirconium-based amorphous thin strip, alloy raw materials or preliminarily prepared mother alloy are smelted in a vacuum induction smelting furnace to obtain a zirconium-based amorphous mother alloy melt, argon is filled and a gate valve between the vacuum induction smelting furnace and a tundish is opened after the temperature is controlled to the requirement, the melt is introduced into the tundish with high-purity argon protection through a preheating runner. After the flow control stopper of the tundish is opened, the alloy melt is injected into the roll gap of a casting roll through the flow distribution nozzle after being uniformly distributed, and the amorphous strip is cooled and formed by the water-cooled casting roll, the amorphous strip is continuously cooled and introduced into a coiling device, and the whole casting-rolling-cooling-coiling process is completed in the cavity of the casting machine with high-purity argon protection. The amorphous forming process in the application is short, the cooling speed is fast, and the preparation process is continuous, and the zirconium-based amorphous thin strip can be efficiently and continuously prepared by the method, and the application of the zirconium-based amorphous alloy is promoted.

[0004] However, the existing water-cooled casting roll is difficult to keep the temperature relatively stable during use, and once the cooling temperature of the water-cooled roll fluctuates, the amorphous thin strip is prone to uneven cooling during the forming process, thereby affecting the mechanical and magnetic properties and chemical stability, affecting the yield of the formed amorphous thin strip and reducing the economic effect of production. SUMMARY

[0005] In view of the above prior art, the technical problem to be solved by the application is that once the cooling temperature of the water-cooled roll fluctuates, the yield of the formed amorphous thin strip is easily reduced, and the economic effect of production is reduced.

[0006] To solve the above problems, the application provides a cooling equipment for amorphous thin strip production, which comprises a cold casting roller, the cold casting roller comprises a cooling roller body, the cooling roller body comprises a main roller body, a roller shaft is inserted into the main roller body, a plurality of phase change unit installation grooves are dug in the main roller body, a plurality of fan column phase change units matched with the size of the fan column phase change units are inserted into the phase change unit installation grooves, a fixed cover is fixedly connected to the opening of the phase change unit installation grooves, the fan column phase change unit comprises an outer shell, the outer shell is filled with transparent phase change material, a light-emitting module is fixedly connected to the inner wall of the side of the outer shell close to the roller shaft, a photosensitive module is fixedly connected to the inner wall of the side of the outer shell away from the roller shaft, and the light-emitting module and the photosensitive module face each other.

[0007] In the cooling equipment for amorphous thin strip production, the phase change material is used to stabilize the temperature of the cold casting roller, so that the amorphous thin strip is uniformly cooled during the forming process, the yield of the formed amorphous thin strip is increased, and the economic effect of production is improved.

[0008] As a further improvement of the application, positioning holes are dug in the inner wall of the main roller body, the fixed cover comprises a cover body, one end of the cover body close to the fan column phase change unit is fixedly connected with a positioning block matched with the positioning hole and a plurality of anti-loosening blocks matched with the phase change unit installation grooves, and the existence of the fixed cover can fix the fan column phase change unit, so that the fan column phase change unit is not easy to loosen during rotation.

[0009] As a further improvement of the application, a pair of separation grids matched with the photosensitive module are fixedly connected to the inner wall of the outer shell, the two separation grids are located on the two sides of the photosensitive module respectively, the phase change material can be invalid, deteriorated and impurities generated during frequent phase change, the existence of the separation grid can have a certain limiting effect on the impurities, the impurities are enriched in the separation grid, the light intensity that the photosensitive module can detect is greatly reduced, and the staff can detect that the phase change material is mostly invalid through abnormal detection data of the photosensitive module, so that the fan column phase change unit can be replaced in time to meet the production needs of the amorphous thin strip.

[0010] As a further improvement of the application, liquid flow holes are dug in the two separation grids and penetrate the separation grids, metal meshes matched with the liquid flow holes are fixedly connected to the liquid flow holes, the digging of the liquid flow holes can increase the flowability of the phase change material and the heat transfer of the phase change material, and the metal meshes can have a certain enrichment effect on the impurities of the phase change material.

[0011] As a further improvement of the application, the end of each metal mesh close to the other metal mesh is fixedly connected with a capture cluster, the capture cluster comprises a plurality of transparent three-dimensional spiral fibers, and the capture effect on the impurities of the phase change material is increased.

[0012] As a further improvement of the present application, the fan column phase change unit is made of elastic material, the outer side of the fan column phase change unit is covered with a metal mesh frame, the metal mesh frame is embedded in the surface of the fan column phase change unit, the fan column phase change unit made of elastic material can effectively reduce the difficulty of transportation and installation, and is not easy to be damaged by hard impact, and at the same time, the metal mesh frame is used to protect the fan column phase change unit, when the fan column phase change unit locally expands, the metal mesh frame can distribute the above deformation to the surrounding area, so that the fan column phase change unit is not easy to appear local excessive deformation, and is not easy to cause damage to the fan column phase change unit.

[0013] As a further improvement of the present application, the metal mesh frame is made of elastic metal, the metal mesh frame has a tendency to contract towards the fan column phase change unit, and the pre-stress generated by the metal mesh frame increases the protection effect of the fan column phase change unit and increases the constraint effect on the failure expansion of the fan column phase change unit.

[0014] In summary, in the production process of amorphous ribbons, the light intensity is continuously detected by using the light sensing module to determine the phase change trend of the phase change material. When the phase change material as a whole has a tendency to liquefy, the cooling effect is insufficient, and the flow of the cooling liquid needs to be increased. When the phase change material as a whole has a tendency to solidify, the cooling effect is excessive, and the flow of the cooling liquid needs to be reduced. The flow of the cooling liquid is adjusted every fixed time, so that the phase change material is always in a solid-liquid mixed state, the temperature of the chill roll is stable, and the amorphous ribbon is uniformly cooled during the forming process, thereby increasing the yield of the formed amorphous ribbon and improving the economic effect of production. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an explosion diagram of the main structure of the cooling device for producing amorphous ribbons according to the first embodiment of the present application;

[0016] Figure 2 It is a structural schematic diagram of the cooling device for producing amorphous ribbons according to the first embodiment of the present application;

[0017] Figure 3 It is a structural schematic diagram of the cooling roll body according to the first embodiment of the present application;

[0018] Figure 4 It is a structural schematic diagram of the fixed cover according to the first embodiment of the present application;

[0019] Figure 5 It is a structural schematic diagram of the fan column phase change unit according to the first embodiment of the present application;

[0020] Figure 6 It is a side sectional view of the fan column phase change unit according to the first embodiment of the present application;

[0021] Figure 7 It is a structural schematic diagram of the separation grid according to the first embodiment of the present application;

[0022] Figure 8 Structure diagram of the fan column phase change unit of the second embodiment of the present application;

[0023] Figure 9 Side view of the fan column phase change unit of the second embodiment of the present application;

[0024] Figure 10 Structure diagram of the amorphous ribbon production equipment in the prior art.

[0025] Explanation of the reference numerals in the drawings:

[0026] 1 cooling roller body, 101 main roller body, 102 positioning hole, 103 phase change unit mounting slot, 2 roller shaft, 3 fixed cover, 301 cover body, 302 anti-loosening block, 303 positioning block, 4 fan column phase change unit, 401 outer shell, 402 light-emitting module, 403 light-sensing module, 404 separation grid, 405 liquid flow hole, 406 metal mesh, 407 capture cluster, 5 metal mesh frame, 6 smelting crucible, 7 flow distribution nozzle, 8 stopper, 9 cold casting roller, 10 curling equipment, 11 discharge roller, 12 amorphous ribbon. DETAILED DESCRIPTION

[0027] The two embodiments of the present application will be described in detail below with reference to the drawings.

[0028] First embodiment:

[0029] Figures 1-6 A cooling device for amorphous ribbon production is shown, which includes a cold casting roller 9, and the cold casting roller 9 includes a cooling roller body 1, and the cooling roller body 1 includes a main roller body 101, and the main roller body 101 is inserted with a roller shaft 2, wherein the roller shaft 2 is a hollow structure, one end of which is a water inlet for cooling liquid, and the other end of which is a water outlet for cooling liquid, and the roller shaft 2 is continuously injected with cooling liquid through a water pump, which is a known technology to those skilled in the art, and therefore is not disclosed in detail in the present application, and the main roller body 101 is drilled with a plurality of phase change unit mounting slots 103, and the plurality of phase change unit mounting slots 103 are inserted with fan column phase change units 4 which match the size of the phase change unit mounting slots 103, and the opening of the plurality of phase change unit mounting slots 103 is fixedly connected with a fixed cover 3, and the fan column phase change unit 4 includes an outer shell 401, and the outer shell 401 is filled with transparent phase change material, wherein the selection of the phase change material needs to be determined according to the processing temperature, and the phase change temperature of the phase change material is the processing temperature, and is higher than the room temperature, and when there is a certain gap between the phase change temperature and the processing temperature, the phase change temperature of the phase change material can be fine-tuned by adding a certain amount of impurities, which is also a known technology to those skilled in the art, and therefore is not disclosed in detail in the present application, and the inner wall of the side of the outer shell 401 close to the roller shaft 2 is fixedly connected with a light-emitting module 402, and the inner wall of the side of the outer shell 401 away from the roller shaft 2 is fixedly connected with a light-sensing module 403, and the light-emitting module 402 and the light-sensing module 403 are opposite to each other.

[0030] Referring to Figure 10 In the prior amorphous ribbon production process, the molten metal is stored in the smelting crucible 6 and injected into the surface of a pair of chill rolls 9 through the nozzle 7, and the chill rolls 9 cool and press the molten metal to form the amorphous ribbon 12. The stopper 8 prevents the smelting crucible 6 from being blocked. The formed amorphous ribbon 12 is moved to the location of the coiling device 10 through a plurality of sets of discharge rolls 11 and is coiled by the coiling device 10.

[0031] In particular, the normal operation of the light-emitting module 402 and the light-sensing module 403 also needs the support of the control terminal, the processing terminal, and the power supply unit, and the specific connection and control method is also known to those skilled in the art, so it is not disclosed in detail in the present application.

[0032] In the present application, before the production of the amorphous ribbon, the transparent phase change material filled in the shell 401 is solid, and the light intensity measured by the light-sensing module 403 is a constant value A. During the preheating stage of the chill roll 9, liquid water slightly higher than the working temperature of the roll shaft 2 is injected into the roll shaft 2 to liquefy the phase change material. At this time, the transmittance of the liquid phase change material changes, and the light intensity measured by the light-sensing module 403 gradually changes until it stabilizes after the phase change material is completely liquefied. At this time, the light intensity measured by the light-sensing module 403 is recorded as B. At this time, the liquid water injected into the roll shaft 2 is adjusted to the working temperature of the amorphous ribbon production to keep the phase change material warm. When the amorphous ribbon production is started, the liquid water injected into the roll shaft 2 is adjusted to a temperature lower than the working temperature of the amorphous ribbon production, so that the phase change material is in a solid-liquid coexistence state. At this time, the temperature of the phase change material remains stable, and the light intensity measured by the light-sensing module 403 is between A and B.

[0033] During the production of the amorphous ribbon, the light-sensing module 403 continuously detects the light intensity. When the light intensity measured by the light-sensing module 403 migrates from A to B, it indicates that the phase change material has a tendency to liquefy, and the cooling effect is insufficient, so the flow of the cooling liquid needs to be increased. When the light intensity measured by the light-sensing module 403 migrates from B to A, it indicates that the phase change material has a tendency to solidify, and the cooling effect is excessive, so the flow of the cooling liquid needs to be reduced. The water pump connected to the roll shaft 2 can adjust the flow of the cooling liquid according to the detection structure of the light-sensing module 403 every fixed time, so that the phase change material is always in a solid-liquid mixed state, the temperature of the chill roll 9 is stable, and the amorphous ribbon is uniformly cooled during the forming process, thereby increasing the yield of the formed amorphous ribbon and improving the economic effect of the production.

[0034] Referring to Figures 3-4The inner wall of the main roller body 101 is provided with a positioning hole 102, the fixed cover 3 comprises a cover body 301, the cover body 301 is fixedly connected with a positioning block 303 matched with the positioning hole 102 and a plurality of anti-loosening blocks 302 matched with the phase change unit mounting groove 103 at one end close to the fan column phase change unit 4, wherein the cooling roller body 1 and the fixed cover 3 can be fixedly connected in a detachable manner such as a through-hole buckle, and the existence of the fixed cover 3 can fix the fan column phase change unit 4, so that the fan column phase change unit 4 is not easy to loosen during rotation.

[0035] Please refer to Figures 5-7 The inner wall of the shell 401 is fixedly connected with a pair of separation grids 404 matched with the photosensitive module 403, the two separation grids 404 are located on the two sides of the photosensitive module 403 respectively, the phase change material will fail, deteriorate and produce impurities in the frequent phase change process, the existence of the separation grid 404 can have a certain limiting effect on the above-mentioned impurities, and the impurities are enriched in the separation grid 404, so that the light intensity detected by the photosensitive module 403 is greatly reduced, the staff can detect that the phase change material is mostly failed through abnormal detection data of the photosensitive module 403, and the fan column phase change unit 4 is replaced in time to meet the production needs of amorphous ribbons, the two separation grids 404 are provided with liquid flow holes 405, and the liquid flow holes 405 penetrate the separation grid 404, the liquid flow holes 405 are fixedly connected with metal nets 406 matched with themselves, the liquid flow holes 405 are provided with the metal nets 406, which can increase the liquidity of the phase change material and increase the heat transfer of the phase change material, and the metal nets 406 can have a certain enrichment effect on the impurities of the phase change material, and the two metal nets 406 are fixedly connected with capture clusters 407 at one end close to each other, the capture cluster 407 comprises a plurality of transparent three-dimensional spiral fibers, and the capture effect on the impurities of the phase change material is increased.

[0036] The second embodiment is:

[0037] Figures 8-9 The fan column phase change unit 4 is made of elastic material, the outer side of the fan column phase change unit 4 is covered with a metal mesh frame 5, the metal mesh frame 5 is embedded in the surface of the fan column phase change unit 4, the elastic material of the fan column phase change unit 4 can effectively reduce the difficulty of transportation and installation, and is not easy to be damaged due to hard impact, and at the same time, the metal mesh frame 5 is used to protect the fan column phase change unit 4, when the fan column phase change unit 4 locally expands, the metal mesh frame 5 can distribute the deformation to the surrounding area, so that the fan column phase change unit 4 is not easy to appear local excessive deformation, and is not easy to cause damage to the fan column phase change unit 4, the metal mesh frame 5 is made of elastic metal, the metal mesh frame 5 has a tendency to shrink to the fan column phase change unit 4, and the pre-stress generated by the metal mesh frame 5 is used to increase the protection effect of the fan column phase change unit 4, and increase the constraint effect on the failure expansion of the fan column phase change unit 4.

[0038] Compared with the first embodiment, the fan column phase change unit 4 and the metal mesh frame 5 in the embodiment make the use cost of the chill roll 9 rise, and are not necessary designs in the normal use process of the chill roll 9, but the fan column phase change unit 4 and the metal mesh frame 5 in the embodiment can greatly increase the use experience of the chill roll 9, and a person skilled in the art can select a suitable fan column phase change unit 4 or metal mesh frame 5 according to actual use requirements.

[0039] In combination with the actual requirements at present, the above-mentioned embodiments adopted by the application are not limited to the above, various changes made within the knowledge range of a person skilled in the art without departing from the concept of the application still fall within the protection range of the application.

Claims

1. A cooling apparatus for amorphous thin strip production, comprising a cold cast roll (9) comprising a cooling roll body (1), characterized in that: The cooling roller body (1) comprises a main roller body (101), a roller shaft (2) is inserted into the main roller body (101), a plurality of phase change unit installation grooves (103) are excavated in the main roller body (101), a plurality of fan column phase change units (4) matched in size are inserted into the phase change unit installation grooves (103), fixed covers (3) are fixedly connected at the openings of the phase change unit installation grooves (103), the fan column phase change unit (4) comprises an outer shell (401), the outer shell (401) is filled with transparent phase change material, a light emitting module (402) is fixedly connected to the inner wall of the side of the outer shell (401) close to the roller shaft (2), a light receiving module (403) is fixedly connected to the inner wall of the side of the outer shell (401) away from the roller shaft (2), and the light emitting module (402) and the light receiving module (403) are opposite to each other.

2. The cooling apparatus for amorphous thin strip production according to claim 1, characterized in that: Positioning holes (102) are excavated in the inner wall of the main roller body (101), the fixed cover (3) comprises a cover body (301), a positioning block (303) matched with the positioning hole (102) and a plurality of anti-loosening blocks (302) matched with the phase change unit installation groove (103) are fixedly connected to one end of the cover body (301) close to the fan column phase change unit (4).

3. The cooling apparatus for amorphous thin strip production according to claim 1, characterized in that: A pair of separation grids (404) matched with the light receiving module (403) are fixedly connected to the inner wall of the outer shell (401), and the two separation grids (404) are located on the two sides of the light receiving module (403) respectively.

4. The cooling apparatus for amorphous thin strip production according to claim 3, characterized in that: Liquid flow holes (405) are excavated in the two separation grids (404) and penetrate the separation grids (404), and metal meshes (406) matched with the liquid flow holes (405) are fixedly connected in the liquid flow holes (405).

5. The cooling apparatus for amorphous thin strip production according to claim 4, characterized in that: Capture clusters (407) are fixedly connected to one end of the two metal meshes (406) close to each other, and the capture cluster (407) comprises a plurality of transparent three-dimensional spiral fibers.

6. The cooling apparatus for non-crystalline thin strip production according to claim 1, characterized in that: The fan column phase change unit (4) is made of elastic material, a metal mesh frame (5) is coated on the outside of the fan column phase change unit (4), and the metal mesh frame (5) is embedded in the surface of the fan column phase change unit (4).

7. The cooling apparatus for amorphous thin strip production according to claim 6, characterized in that: The metal mesh frame (5) is made of elastic metal, and the metal mesh frame (5) has a tendency to contract towards the fan column phase change unit (4).

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