Small-tolerance molybdenum plate fine rolling device
By setting cooling components at the rolling group of the molybdenum plate rolling equipment, the problems of high pressure and the impact of the accuracy of the molybdenum plate during cold rolling are solved, and higher rolling accuracy and small tolerance control are achieved.
Patent Information
- Application Number
- CN202420576935.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-03-25
AI Technical Summary
During the cold rolling process of molybdenum plates, since the molybdenum plate does not need to be heated and has ductility, higher pressure is required to roll the required size, resulting in heat generated by the rolling roll group, affecting the cold rolling accuracy of the molybdenum plate and creating small tolerances.
At each rolling roll group, a cooling member is provided, including a cooling assembly for the upper and lower rolls, and a coolant circulation refrigeration assembly for the cooling liquid refrigeration, which allows the coolant to flow through a heat exchange tube, thereby achieving cooling of each roll group during the cold rolling process.
By using cooling components, the accuracy of molybdenum plate rolling can be improved, the shrinkage of molybdenum plate after cold rolling can be reduced, small tolerances can be reduced, and more refined cold rolling of molybdenum plate can be achieved.
Smart Images
Figure CN222659643U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of molybdenum plate rolling equipment, in particular to a fine rolling device for small tolerance molybdenum plates. Background Art
[0002] Rolling is the process of changing the shape of the molybdenum plate blank using a rotating set of rolls, and reducing the spacing between the roll sets in turn to reduce the thickness of the molybdenum plate. Rolling can enhance the mechanical properties and uniformity of the molybdenum plate. The rolling of molybdenum plates is divided into hot rolling and cold rolling. Hot rolling shrinks during the cooling stage, which means that the degree of control over its final shape is low. Therefore, hot rolling is often used for molybdenum plates that do not require very strict tolerances. Cold rolling is the process of rolling a molybdenum plate of a certain thickness through a roll set at room temperature. The molybdenum plate after cold rolling will not shrink and has higher precision. Therefore, cold rolling is often used for the rolling of refined molybdenum plates.
[0003] However, it is found in practice that during the cold rolling process of molybdenum plates, since the molybdenum plates do not need to be heated and are ductile in themselves, higher pressure is required to roll them into the required size. Higher pressure will cause the roller group to generate a certain amount of heat during the rolling process in contact with the molybdenum plates. When the temperature of the roller group is too high, the heat is transferred to the molybdenum plates, which will cause the molybdenum plates to shrink slightly when cooling after cold rolling, which can easily affect the cold rolling accuracy of the molybdenum plates and produce certain small tolerances, which is not conducive to the cold rolling of the molybdenum plates.
[0004] Based on the deficiencies in the prior art, the utility model discloses a fine rolling device for small tolerance molybdenum plates. By respectively arranging a cooling component at each rolling roller group, the cooling of each rolling roller group is achieved during the cold rolling process, which can improve the rolling accuracy of the molybdenum plate and make the cold rolling more refined. Utility Model Content
[0005] In view of the shortcomings of the prior art, the utility model aims to provide a fine rolling device for small tolerance molybdenum plates.
[0006] The utility model provides the following technical solutions:
[0007] A fine rolling device for small tolerance molybdenum plates comprises a molybdenum plate rolling mill body, on which a plurality of roll groups are arranged, wherein the roll groups comprise upper rolls and lower rolls, and also comprise a cooling component for cooling the roll groups, wherein the cooling component comprises a first cooling component for cooling the upper rolls, a second cooling component for cooling the lower rolls, and a coolant circulation refrigeration component for cooling the coolant, wherein the first cooling component and the second cooling component are respectively provided with heat exchange tubes for flowing the coolant.
[0008] Preferably, the coolant circulation refrigeration component includes a compressor, and a condensing element is provided at the output end of the compressor. The output end of the condensing element is connected to a liquid storage tank through a first pipe, and the output end of the liquid storage tank is connected to the input ends of several heat exchange tubes through a second pipe and a first diverter valve. The output ends of several heat exchange tubes are connected to the input end of the compressor through a second diverter valve and a third pipe, and an expansion valve is also provided on the second pipe.
[0009] Preferably, the condensing element includes a condensing box, a second heat exchange tube is arranged inside the condensing box, the input end of the second heat exchange tube is connected to the output end of the compressor, the output end of the second heat exchange tube is connected to the input end of the first pipeline, the upper end surface of the condensing box is also provided with a plurality of second openings, semiconductor refrigeration plates are arranged at the second openings, the cold end surface of the semiconductor refrigeration plate is located inside the condensing box, the hot end surface of the semiconductor refrigeration plate is located above the condensing box, and the upper end surface of the condensing box is located on the hot end surface of each of the semiconductor refrigeration plates, and a cooling fan is respectively arranged.
[0010] Preferably, the second heat exchange tube is arranged in a serpentine shape below the cold end surface of the semiconductor refrigeration plate, and a plurality of second heat exchange fins are arranged on the outer side surface of the second heat exchange tube along its length direction.
[0011] Preferably, a plurality of the second openings are evenly distributed on the upper end surface of the condensation box in a rectangular array.
[0012] Preferably, the first cooling component is arranged directly above the upper rolling roller, and the first cooling component includes a shell, and the length direction of the shell is arranged parallel to the axial direction of the upper rolling roller, so the lower end surface of the shell is provided with a rectangular opening along its length direction, and a first heat exchange tube is arranged inside the shell.
[0013] Preferably, a first arc-shaped plate is provided at the lower end of the shell at the rectangular opening along its length direction, the axis of the first arc-shaped plate is coaxially arranged with the upper rolling roller, and a plurality of air outlet holes are provided on the first arc-shaped plate.
[0014] Preferably, a plurality of the air outlet holes are evenly distributed on the first arc-shaped plate in a rectangular array.
[0015] Preferably, a second arc plate is provided at the inner lower end of the shell at the rectangular opening along its length direction, the axis of the second arc plate is coaxially arranged with the upper roller, and a plurality of air inlet holes are arranged on the second arc plate.
[0016] Preferably, a plurality of the air inlet holes are evenly distributed on the second arc-shaped plate in a rectangular array.
[0017] Preferably, an arc-shaped cooling chamber is formed between the first arc plate and the second arc plate, the first heat exchange tube is located inside the arc-shaped cooling chamber, the upper end surface of the shell is set as an opening, a support frame is provided at the opening, and an air supply fan is provided in the middle of the support frame.
[0018] Preferably, the first heat exchange tube is arranged in a serpentine shape inside the arc-shaped cooling chamber, and a plurality of heat exchange fins are arranged on the outer side of the first heat exchange tube along its length direction.
[0019] Preferably, the second cooling component is arranged directly below the lower rolling roller, and the structure of the second cooling component is the same as that of the first cooling component.
[0020] Compared with the prior art, the utility model has the following beneficial effects:
[0021] The utility model discloses a fine rolling device for molybdenum plates with small tolerances. A cooling component is respectively arranged at each rolling roller group. The cooling component comprises a first cooling component for cooling an upper rolling roller, a second cooling component for cooling a lower rolling roller, and a coolant circulation refrigeration component for cooling a coolant. The first cooling component and the second cooling component are respectively provided with heat exchange pipes for flowing the coolant, so that the cooling of each rolling roller group is achieved during the cold rolling process, the rolling precision of the molybdenum plates can be improved, and the cold rolling can be made more refined. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 It is a structural schematic diagram of the utility model.
[0024] Figure 2 It is a schematic diagram of the structure of the cooling component of the utility model.
[0025] Figure 3 This is a schematic diagram of the structure of the first cooling component of the utility model.
[0026] Figure 4 This is a schematic diagram of the structure of the coolant circulation refrigeration component of the utility model.
[0027] Figure 5 This is a schematic diagram of the structure of the condensing element of the utility model. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] See also Figure 1-5 As shown, a fine rolling device for small tolerance molybdenum plates includes a molybdenum plate rolling mill body 1, on which a plurality of roll groups 2 are arranged, wherein the roll group 2 includes an upper roll 21 and a lower roll 22, and also includes a cooling component 3 for cooling the roll group 2, wherein the cooling component 3 includes a first cooling component 4 for cooling the upper roll 21, a second cooling component 5 for cooling the lower roll 22, and a coolant circulation refrigeration component for cooling the coolant, wherein the first cooling component 4 and the second cooling component 5 are respectively provided with heat exchange pipes for flowing the coolant. By respectively arranging a cooling component at each rolling roller group, the cooling component includes a first cooling component for cooling the upper rolling roller, a second cooling component for cooling the lower rolling roller, and a coolant circulation refrigeration component for cooling the coolant, and the first cooling component and the second cooling component are respectively equipped with heat exchange tubes for flowing the coolant, so as to achieve cooling of each rolling roller group during the cold rolling process, which can improve the rolling accuracy of molybdenum plates and make cold rolling more refined.
[0031] The first cooling component 4 is arranged directly above the upper roller 21, and includes a shell 41, the length direction of which is parallel to the axis direction of the upper roller 21, so the lower end surface of the shell is provided with a rectangular opening along its length direction, and a first heat exchange tube 45 is provided inside the shell 41. Both ends of the shell 41 are arranged on the support frames at both ends of the upper roller 21 through a connecting frame, and rise and fall with the rise and fall of the upper roller 21.
[0032] The lower end of the housing 41 is located at the rectangular opening and is provided with a first arc plate 42 along its length direction. The axis of the first arc plate 42 is coaxially arranged with the upper roller 21. The first arc plate 42 is provided with a plurality of air outlet holes 47. The inner diameter of the first arc plate 42 is greater than the diameter of the upper roller 21.
[0033] The plurality of air outlet holes 47 are evenly distributed on the first arc-shaped plate 42 in a rectangular array.
[0034] A second arc plate 43 is disposed at the inner lower end of the shell 41 at the rectangular opening along its length direction. The axis of the second arc plate 43 is coaxially disposed with the upper roller 21 . A plurality of air inlet holes 46 are disposed on the second arc plate 43 .
[0035] Preferably, a plurality of the air inlet holes 46 are evenly distributed on the second arc-shaped plate 43 in a rectangular array.
[0036] An arc-shaped cooling chamber 44 is formed between the first arc-shaped plate 42 and the second arc-shaped plate 43. The first heat exchange tube 45 is located inside the arc-shaped cooling chamber 44. The upper end surface of the shell 41 is set as an opening, a support frame is provided at the opening, and an air supply fan 48 is provided in the middle of the support frame.
[0037] A dust filter 49 is provided on the support frame.
[0038] A plurality of air supply fans 48 are provided, and the plurality of air supply fans 48 are evenly arranged at equal intervals along the length direction of the opening.
[0039] The first heat exchange tube 45 is arranged in a serpentine shape inside the arc-shaped cooling chamber 44, and a plurality of heat exchange fins 7 are arranged on the outer side of the first heat exchange tube 45 along its length direction, so as to further improve the heat exchange efficiency between the first heat exchange tube and the arc-shaped cooling chamber 44.
[0040] The second cooling component 5 is disposed directly below the lower rolling roller 22 , and the structure of the second cooling component 5 is the same as that of the first cooling component 4 .
[0041] The coolant circulation refrigeration component includes a compressor 61, and a condensing element 8 is provided at the output end of the compressor. The output end of the condensing element 8 is connected to a liquid storage tank 63 through a first pipe 62. The output end of the liquid storage tank 63 is connected to the input ends of several heat exchange tubes through a second pipe 64 and a first diverter valve. The output ends of several heat exchange tubes are connected to the input end of the compressor 61 through a second diverter valve and a third pipe 67. An expansion valve 66 is also provided on the second pipe 64.
[0042] A drying filter 65 is also provided at the input end of the second pipe 64 .
[0043] The condensation element 8 includes a condensation box 81, a second heat exchange tube 82 is arranged inside the condensation box, the input end of the second heat exchange tube is connected to the output end of the compressor, the output end of the second heat exchange tube is connected to the input end of the first pipeline 62, and the upper end surface of the condensation box is also provided with a plurality of second openings, semiconductor refrigeration plates 83 are arranged at the second openings, the cold end surface of the semiconductor refrigeration plate 83 is located inside the condensation box, the hot end surface of the semiconductor refrigeration plate 83 is located above the condensation box, and the upper end surface of the condensation box is located on the hot end surface of each of the semiconductor refrigeration plates 83, and a heat dissipation fan 84 is respectively arranged. The compressor compresses the gaseous coolant into a high-temperature and high-pressure liquid coolant, and then sends it to the condenser 8 to dissipate heat and become a medium-temperature and medium-pressure liquid coolant. The liquid coolant enters a plurality of first heat exchange tubes through the expansion valve. The space suddenly increases and the pressure decreases, and the liquid coolant will vaporize (the process from liquid to gas is an endothermic process), absorbing a large amount of heat, and the first heat exchange tube will become cold. The air supply fan blows the outside air from the rectangular opening, the air inlet, and the air outlet 47 onto the upper roller 21 to cool the upper roller. Then the gaseous coolant returns to the compressor to continue compression and continue the cycle.
[0044] The second heat exchange tube is arranged in a serpentine shape below the cold end surface of the semiconductor cooling plate 83, and a plurality of second heat exchange fins are arranged on the outer side of the second heat exchange tube along its length direction, so as to further improve the heat exchange efficiency between the second heat exchange tube and the cold end surface of the semiconductor cooling plate 83.
[0045] A plurality of the second openings are evenly distributed on the upper end surface of the condensation box in a rectangular array.
[0046] The above is only a preferred implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A fine-tolerance molybdenum plate fine rolling device, comprising a molybdenum plate rolling mill body (1), wherein the molybdenum plate rolling mill body (1) is provided with a plurality of roll groups (2), wherein the roll group (2) comprises an upper roll (21) and a lower roll (22), and wherein: The present invention also comprises a cooling component (3) for cooling the roller group (2), wherein the cooling component (3) comprises a first cooling component (4) for cooling the upper roller (21), a second cooling component (5) for cooling the lower roller (22), and a coolant circulation refrigeration component for cooling the coolant, wherein the first cooling component (4) and the second cooling component (5) are respectively provided with a heat exchange tube for flowing the coolant.
2. A fine rolling device for small tolerance molybdenum plates according to claim 1, characterized in that: The first cooling component (4) is arranged directly above the upper roller (21), and comprises a shell (41). The length direction of the shell is parallel to the axial direction of the upper roller (21), so that a rectangular opening is arranged on the lower end surface of the shell along its length direction, and a first heat exchange tube (45) is arranged inside the shell (41).
3. A fine rolling device for small tolerance molybdenum plates according to claim 2, characterized in that: A first arc-shaped plate (42) is provided at the lower end of the shell (41) at the rectangular opening along its length direction, the axis of the first arc-shaped plate (42) is coaxially arranged with the upper roller (21), and a plurality of air outlet holes (47) are provided on the first arc-shaped plate (42).
4. A fine rolling device for small tolerance molybdenum plates according to claim 3, characterized in that: A second arc-shaped plate (43) is also provided at the lower end of the inner part of the shell (41) at the rectangular opening along its length direction; the axis of the second arc-shaped plate (43) is coaxially arranged with the upper roller (21); and a plurality of air inlet holes (46) are provided on the second arc-shaped plate (43).
5. A fine rolling device for small tolerance molybdenum plates according to claim 4, characterized in that: An arc-shaped cooling chamber (44) is formed between the first arc-shaped plate (42) and the second arc-shaped plate (43); the first heat exchange tube (45) is located inside the arc-shaped cooling chamber (44); the upper end surface of the shell (41) is set as an opening; a support frame is provided at the opening; and an air supply fan (48) is provided in the middle of the support frame.
6. A fine rolling device for small tolerance molybdenum plates according to claim 5, characterized in that: The first heat exchange tube (45) is arranged in a serpentine shape inside the arc-shaped cooling chamber (44), and a plurality of heat exchange fins (7) are arranged on the outer side surface of the first heat exchange tube (45) along its length direction.
7. A fine rolling device for small tolerance molybdenum plates according to any one of claims 1 to 6, characterized in that: The second cooling component (5) is arranged directly below the lower rolling roller (22), and the structure of the second cooling component (5) is the same as that of the first cooling component (4).