Standard modular super-large-specification cathode roller and manufacturing method

Abstract

The invention relates to a standard modularized super-large specification cathode roller which comprises a steel shaft, the steel shaft is fixedly sleeved with a positioning plate coaxial with the steel shaft, the outer edge of the positioning plate is provided with a roller face, the roller face penetrates through the positioning plate and is coaxial with the positioning plate, the outer circle of the roller face is sleeved with a copper roller face, and the periphery of the copper roller face is sleeved with a titanium roller. According to the cathode roller, the titanium roller sleeves the copper roller surface through thermal fit, so that the cathode roller is easy to assemble, the welding amount is greatly reduced, the welding deformation is avoided, the assembly precision is improved, the balance of the whole roller is improved, the processing period is shortened, and the manufacturing cost of the cathode roller is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electrolytic copper foil manufacturing, and in particular to a standard modular super-large-size cathode roller and a manufacturing method thereof. Background Art

[0002] As the performance of lithium batteries continues to develop in the direction of high energy, high density, ultra-thinness and ultra-toughness, large-width and large-diameter electrolytic copper foil equipment has become the main demand of the industry under the premise of ensuring product quality and yield rate. As the core component of the raw foil equipment, the cathode roller is also moving towards a large width and large diameter, which poses a new challenge to the manufacturing capabilities of equipment manufacturers. The copper foil with a width of about 2000mm produced by the mainstream and relatively mature technology in the current market has unsatisfactory yield and production efficiency, and is difficult to apply to mass production. Therefore, the cathode roller, the core equipment of large-diameter and large-width electrolytic copper foil, has become the most likely and effective way to achieve this goal. According to incomplete statistics, compared with the traditional cathode roller equipment with a diameter of 2700mm, the production efficiency of a single 3000mm cathode roller can be increased by more than 15%, energy consumption can be reduced by more than 5%, and the comprehensive production cost can be reduced by more than 5%, which greatly reduces the cost. In order to help copper foil manufacturers further improve production efficiency and reduce the production cost of copper foil, it is urgent to mass produce and apply ultra-large diameter and large-width cathode rollers.

[0003] At present, cathode rollers are mainly made of seamless titanium cylinders and welded steel rollers through hot assembly welding. The welding volume is large and the shaping cycle is long. Especially for cathode rollers with super large diameter and wide width, the welding deformation is large, the processing allowance increases, the processing time is prolonged, and the economic cost also increases accordingly. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a standard modular super-large-size cathode roller and a manufacturing method; the cathode roller has stable rigidity, stable structure, easy assembly, high assembly precision, less processing and welding, and low cost.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention proposes a standard modular super-large-size cathode roller, comprising a steel shaft, a positioning plate coaxial with the steel shaft is fixedly sleeved on the steel shaft, a roller surface is arranged on the outer edge of the positioning plate, the roller surface passes through the positioning plate and is coaxial with the positioning plate, a copper roller surface is sleeved on the outer circle of the roller surface, a titanium roller is sleeved on the outer periphery of the copper roller surface, and the titanium roller is sleeved on the copper rod surface by heat fitting.

[0007] Specifically, there are a plurality of positioning plates, and the plurality of positioning plates are evenly spaced and sleeved on the steel shaft, and the roller surface passes through each positioning plate in turn.

[0008] Specifically, the roller surface is formed by a circle of first support rods arranged at intervals along the outer edge of the positioning plate. A circle of first through holes is arranged on the outer edge of each positioning plate. The first through holes on each positioning plate correspond to each other one by one. The first support rods pass through the corresponding first through holes in turn and are fixedly connected to the circular fixing plate. The ends of all the first support rods are flush.

[0009] Specifically, a copper germanium plate is arranged on the outer side of the positioning plate at the outer end, a steel support plate is arranged on the outer side of the copper germanium plate, a reinforcing steel ring is arranged on the outer edge of the steel support plate, and a special-shaped titanium germanium plate is installed on the outer side of the reinforcing steel ring.

[0010] Specifically, a second through hole is provided on the positioning plate, and the second through hole is located between the inner circle of the positioning plate and the roller surface. The second through holes on each positioning plate correspond to each other one by one, and the second support rods pass through the corresponding second through holes in sequence. On each second support rod, a sleeve is also provided between two adjacent positioning plates, and both ends of the sleeve are respectively in contact with adjacent positioning plates.

[0011] Specifically, steps are provided at both ends of the steel shaft, the positioning plates at both ends have a smaller inner diameter than the inner diameter of the middle positioning plate, and a limiting tube is sleeved on the steel shaft outside the positioning plates at the ends so that the positioning plates at the ends are clamped between the limiting tube and the steps, and the copper germanium plate, steel support plate, and special-shaped titanium germanium plate are all sleeved on the limiting tube.

[0012] Specifically, a circle of grooves is arranged on the inner edge of the outer side surface of the positioning plate at the end, and one end of the limiting cylinder close to the positioning plate at the end is embedded in the groove.

[0013] Specifically, the periphery of the special-shaped titanium-germanium plate is in an outer stepped shape, which wraps the reinforcing steel ring.

[0014] Specifically, the copper roller surface is formed by tightly winding copper wires from one end of the roller surface to the other end.

[0015] The present invention also proposes a method for manufacturing a standard modular super-large cathode roller, which is characterized by comprising the following steps:

[0016] S1. Processing the positioning plate; firstly, level the surface of the positioning plate blank so that the surface flatness of the annular positioning plate is ≤1.5mm, then anneal the positioning plate blank, and stack all the positioning plate blanks together to complete the processing at one time;

[0017] S2, processing the copper plugging plate and the steel support plate; firstly, leveling the surface of the copper plugging plate and the steel support plate blank, then annealing the copper plugging plate and the steel support plate blank respectively, and finally stacking the copper plugging plate and the steel support plate blank together, and processing them in one time in the machining center;

[0018] S3, assembling the steel shaft, the positioning plate, the first support rod, the second support rod and the sleeve;

[0019] S4, assembling the first support rods one by one on the positioning plate, so that all the first support rods form a roller surface;

[0020] S5. After assembling the limit cylinders at both ends of the steel shaft, copper-germanium plates are respectively assembled on the outside of the annular positioning plates at both ends, steel support plates are assembled on the outside of the copper-germanium plates, and reinforcing steel rings are assembled on the outside of the steel support plates. The copper plugging plate and the steel support plate are fixed to the end of the second support rod by spot welding, and the reinforcing steel ring is fixed to the steel support plate by bolts;

[0021] S6, placing the components assembled in S5 on a lathe, tightly winding the copper wire from one end of the roller surface to the other end to form a uniform copper roller surface, and spot welding the two ends of the copper wire to the copper germanium plate respectively;

[0022] S7. Assemble the special-shaped titanium-germanium plate on the outside of the reinforcing steel ring. The outer circle of the reinforcing steel ring and the special-shaped titanium-germanium plate are fixedly connected by welding. Flatten the weld surface between the special-shaped titanium plugging plate and the reinforcing steel ring. Heat-assemble the titanium roller and put it on the copper roller surface. Weld the end of the titanium roller to the special-shaped titanium-germanium plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The cathode roller of the present invention is formed by assembling a first support rod to form a roller surface, and a copper wire is wound on the roller surface to form a copper roller surface. The titanium roller is sleeved on the copper roller surface by heat fitting, which is easy to assemble, greatly reduces the amount of welding, avoids welding deformation, improves assembly accuracy, improves the balance of the entire roller, shortens the processing cycle, and reduces the cost of the cathode roller.

[0025] (2) The cathode roller end of the present invention is equipped with an integrated special-shaped titanium plugging plate. The shape of the special-shaped titanium germanium plate matches the structure of the cathode roller end, replacing the circumferential weld between the traditional titanium plugging plate and the end face of the titanium roller, avoiding leakage and reducing deformation.

[0026] (3) A second support rod that is easy to assemble is provided between the inner circle of the cathode roller positioning plate and the roller surface of the present invention, and the structural stability of the imprint roller is enhanced by the second support. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the present invention.

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 is a cross-sectional view of the cathode roller of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the special-shaped titanium germanium plate of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the copper germanium plate of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the steel support plate of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the positioning plate of the present invention;

[0034] Figure 6 for Figure 5 The enlarged image of the middle I.

[0035] Figure numerals: 1. steel shaft, 2. special-shaped titanium-germanium plate, 3. steel support plate, 4. copper-germanium plate, 5. positioning plate, 501. first through hole, 502. second through hole, 6. reinforcing steel ring, 7. titanium roller, 8. copper roller surface, 9. roller surface, 10. sleeve, 11. second support rod, 12. limiting cylinder, 13. tapered tightening sleeve 14. positioning ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0037] refer to Figure 1 The present embodiment proposes a standard modular super-large cathode roller, comprising a steel shaft 1, on which a positioning plate 5 coaxial with the steel shaft 1 is fixedly sleeved, a roller surface 9 is arranged on the outer edge of the positioning plate 5, the roller surface 9 penetrates the positioning plate 5 and is coaxial with the positioning plate 5, a copper roller surface 8 is sleeved on the outer circle of the roller surface 9, a titanium roller 7 is sleeved on the outer periphery of the copper roller surface 8, the titanium roller 7 is sleeved on the copper roller surface 8 by heat fitting, the positioning plate 5 is fastened to the steel shaft 1 by a conical clamping sleeve 13 and a positioning ring 14, after the conical clamping sleeve 13 positions the positioning plate 5, the positioning ring 14 is used to fix the positioning plate 5, and then the end face of the positioning ring 14 is spot welded to fix the positioning ring 14 and the conical clamping sleeve 13 as a whole.

[0038] In this embodiment, the titanium roller 7 is sleeved on the copper roller surface 8 by heat fitting, which is easy to assemble, greatly reduces the welding amount, avoids welding deformation, shortens the processing cycle, and reduces the cost of the cathode roller.

[0039] Specifically, refer to Figure 1 and Figure 5There are multiple positioning plates 5, and multiple positioning plates 5 are evenly spaced and sleeved on the steel shaft 1. The roller surface 9 is formed by a circle of first support rods arranged at intervals along the outer edge of the positioning plates 5. A circle of first through holes 501 is arranged on the outer edge of each positioning plate 5. The first through holes 501 on each positioning plate 5 correspond to each other one by one. The first support rods pass through the corresponding first through holes 501 in turn and are fixedly connected to the circular fixing plate 5. The ends of all the first support rods are flush.

[0040] The roller surface 9 of this embodiment is surrounded by a circle of first support rods, which ensures strength while being easy to assemble, using less material, having low cost, and reducing welding.

[0041] Specifically, refer to Figures 1 to 4 , two outer end positioning plates 5, each of which is also provided with a copper germanium plate 4 on the outside, and a steel support plate 3 is also provided on the outside of the copper germanium plate 4. A reinforcing steel ring 6 is also provided on the outer edge of the steel support plate 3, and a special-shaped titanium germanium plate 2 is assembled on the outside of the reinforcing steel ring 6. The end of the first support rod passes through the copper germanium plate 4 and the steel support plate 3 in sequence, and the first support rod and the copper germanium plate 4 and the first support rod and the steel support plate 3 are fixedly connected by spot welding. The copper germanium plate 4, the steel support plate 3, the reinforcing steel ring 6 and the special-shaped titanium germanium plate 2 are all coaxial with the steel shaft 1, and the reinforcing steel ring 6 is fixedly connected to the steel support plate 3 by bolts.

[0042] In this embodiment, the copper germanium plate 4, steel support plate 3, reinforcing steel ring 6 and special-shaped titanium germanium plate 2 at the end of the cathode roller work together to strengthen the rigidity of the entire cathode roller. The special-shaped titanium germanium plate 2 is integrated and assembled at the outermost end of the cathode roller, replacing the circumferential weld between the titanium plugging plate and the end face of the titanium roller to avoid liquid leakage.

[0043] Specifically, refer to Figure 5 and Figure 6 A second through hole 502 is provided on the positioning plate 5, and the second through hole 502 is located between the inner circle of the positioning plate 1 and the roller surface 9. The second through holes 502 on each positioning plate 5 correspond to each other, and the second support rods 11 pass through the corresponding second through holes 502 in sequence. On each second support rod 11, a sleeve 10 is also sleeved between two adjacent positioning plates 5, and the two ends of the sleeve 10 are respectively in contact with the adjacent positioning plates 5. The ends of the second support rod 11 are also copper-germanium plate 4 and steel support plate 3 in sequence. The second support rod 11 and the copper-germanium plate 4 and the second support rod 11 and the steel support plate 3 are also fixedly connected by spot welding. The exposed end of the second support rod 11 is provided with a fixing nut, and the fixing nut is fixedly connected to the steel support plate 3 by spot welding.

[0044] In this embodiment, a second support rod 11 is arranged between the inner circle of the positioning plate 5 and the roller surface 9. The second support rod 11 is easy to install and can enhance the strength of the cathode roller. On the second support rod 11, a sleeve 10 is sleeved between two adjacent positioning plates 5 to further fix the positioning plate 5. Both ends of the sleeve 10 are pressed against the adjacent positioning plate 5 by fixing gaskets. The gaskets and the positioning plates are fixed by spot welding, and the sleeve and the second support rod 11 are fixed by nuts, so that the sleeve 10, the second support rod 11 and the positioning plate 5 are integrated, wherein the number and position of the second support rod 11 can be determined according to design requirements.

[0045] Specifically, steps are provided at both ends of the steel shaft 1, and a limiting tube 12 is sleeved on the steel shaft 1 outside the positioning plates 5 at both ends. The positioning plates 5 at the ends are clamped between the limiting tube 12 and the steps, and the copper-germanium plate 4 and the steel support plate 3 are both sleeved on the limiting tube 12. A circle of grooves is provided on the inner edge of the outer side surface of the positioning plate 5 at the end, and the limiting tube 12 is embedded in the groove at one end of the positioning plate 5 close to the end.

[0046] In this embodiment, the steel shaft 1 is thicker between the two steps than at the two ends, and the inner diameter of the positioning plate 5 at the end is smaller than the inner diameter of the middle positioning plate 5. When assembling the cathode roller, the positioning plate 5 at the end can be positioned at the step, and the limiting cylinder 12 is sleeved on the steel shaft 1 and is located on the outside of the positioning plate 5 at the end. The positioning plate 5 at the end is matched with the groove on the positioning plate 5 at the end. The step and the limiting cylinder 12 clamp the positioning plate 5 at the end, which is convenient for controlling the assembly accuracy of the cathode roller.

[0047] Specifically, the copper roller surface 8 is formed by copper wire tightly wound from one end of the roller surface to the other end. In the actual manufacturing process, the copper wire can be tightly wound from one end of the roller surface 9 to the other end, and then wound back from the other end, and repeatedly wound for several layers. The specific number of layers can be determined according to demand. The two ends of the copper wire are respectively welded to the inner side of the copper germanium plate 4, and the special-shaped titanium germanium plate 2 is adapted to the end structure of the cathode roller. The periphery of the special-shaped titanium germanium plate 2 is an outer stepped shape, which wraps the reinforcing steel ring 6.

[0048] In this embodiment, the copper roller surface 8 is formed by winding a copper wire on a first support rod, and the processing method is simple.

[0049] In the above embodiments, the special-shaped titanium plugging plate 2 is preferably made of TA1 titanium plate with a thickness of 3 mm, the annular positioning plate 5 is preferably made of carbon steel plate with a thickness of 12 mm, the copper wire forming the copper roller surface 8 is preferably a copper wire with a diameter of 1.3 mm, and the copper roller surface 8 is preferably formed by three layers of copper wire layers; the outer diameter of the copper plugging plate 4, the outer diameter of the steel support plate 3 and the outer diameter of the reinforcing steel ring 6 are the same, and the copper roller surface 8 is flush with the outer circle of the copper plugging plate 4.

[0050] Example 2

[0051] This embodiment provides a method for manufacturing a standard modular super-large cathode roller, comprising the following steps:

[0052] S1, processing the positioning plate 5; firstly, leveling the surface of the positioning plate blank so that the surface flatness of the annular positioning plate is ≤1.5mm, then annealing the positioning plate blank, and stacking all the positioning plate blanks together to process them in one go;

[0053] S2, processing the copper plugging plate 4 and the steel support plate 3; first leveling the surface of the copper plugging plate and the steel support plate blank, then annealing the copper plugging plate and the steel support plate blank respectively, and finally stacking the copper plugging plate and the steel support plate blank together, and processing them in a processing center at one time;

[0054] S3. Assemble the steel shaft 1, the positioning plate 5, the first support rod, the second support rod 11 and the sleeve 10. During the assembly process, the positioning plate 5 is fastened to the steel shaft 1 by a conical tightening sleeve and a positioning ring. After the conical tightening sleeve positions the positioning plate 5, the positioning ring is used to fix the positioning plate 5, and then the end face of the positioning ring is spot welded to fix the positioning ring and the conical tightening sleeve as a whole. Both ends of the sleeve 10 are pressed against the adjacent positioning plate 5 by fixing gaskets, and the fixing gaskets and the positioning plate 5 are spot welded. The sleeve and the second support rod 11 are fixed by nuts to make the sleeve 10, the second support rod 11 and the positioning plate 5 as a whole.

[0055] S4, assembling the first support rods one by one on the positioning plate 5, so that all the first support rods form a roller surface 9;

[0056] S5. After assembling the limit cylinders 12 at both ends of the steel shaft 1, the copper-germanium plates 4 are respectively assembled on the outer sides of the annular positioning plates at both ends, the steel support plate 3 is assembled on the outer sides of the copper-germanium plates 4, and the reinforcing steel ring 6 is assembled on the outer sides of the steel support plate 3. The copper blocking plate 4 and the steel support plate 3 are fixed to the end of the second support rod 11 by spot welding, and the reinforcing steel ring 6 is fixed to the steel support plate 3 by bolts;

[0057] S6, placing the components assembled in S5 on a lathe, tightly winding the copper wire from one end of the roller surface to the other end to form a uniform copper roller surface 8, and fixing the two ends of the copper wire to the copper germanium plate 4 with spot welding respectively;

[0058] S7. Assemble the special-shaped titanium-germanium plate 2 on the outside of the reinforcing steel ring 6. The outer circle of the reinforcing steel ring 6 is fixedly connected to the special-shaped titanium-germanium plate 2 by welding. Flatten the weld surface between the special-shaped titanium plugging plate 4 and the reinforcing steel ring 6. Heat-assemble the titanium roller 7 and put it on the copper roller surface. Weld the end of the titanium roller 7 to the special-shaped titanium-germanium plate 2.

[0059] The manufacturing method of this embodiment is simple, requires little processing and welding, and has a low cost.

[0060] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0061] It should be understood that the present invention is not limited to what has been described above and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A standard modular super-large cathode roller, characterized in that: The invention comprises a steel shaft (1), a positioning plate (5) coaxial with the steel shaft (1) being fixedly sleeved thereon, a roller surface (9) being arranged on the outer edge of the positioning plate (5), the roller surface (9) penetrating the positioning plate (5) and being coaxial with the positioning plate, a copper roller surface (8) being sleeved on the outer circle of the roller surface (9), a titanium roller (7) being sleeved on the outer periphery of the copper roller surface (8), and the titanium roller (7) being sleeved on the copper roller surface (8) by heat fitting.

2. A standard modular super-large cathode roller according to claim 1, characterized in that: There are a plurality of positioning plates (5), which are evenly spaced and sleeved on the steel shaft (1), and the roller surface (9) passes through each positioning plate in sequence.

3. A standard modular super-large cathode roller according to claim 2, characterized in that: The roller surface (9) is formed by a circle of first support rods arranged at intervals along the outer edge of the positioning plate, and a circle of first through holes (501) is arranged on the outer edge of each positioning plate (5). The first through holes (501) on each positioning plate (5) correspond to each other one by one. The first support rods pass through the corresponding first through holes (501) in sequence and are fixedly connected to the annular fixing plate (5), and the ends of all the first support rods are flush.

4. A standard modular super-large cathode roller according to claim 2, characterized in that: A copper-germanium plate (4) is also arranged on the outer side of the positioning plate (5) at the outer end, a steel support plate (3) is also arranged on the outer side of the copper-germanium plate (4), a reinforcing steel ring (6) is also arranged on the outer edge of the steel support plate (3), and a special-shaped titanium-germanium plate (2) is installed on the outer side of the reinforcing steel ring.

5. A standard modular super-large cathode roller according to claim 2, characterized in that: The positioning plate (5) is provided with a second through hole (502), the second through hole (502) is located between the inner circle of the positioning plate (5) and the roller surface (9), the second through holes (502) on each positioning plate (5) correspond to each other, the second support rods (11) pass through the corresponding second through holes (502) in sequence, and a sleeve (10) is also sleeved between two adjacent positioning plates (5) on each second support rod (11), and the two ends of the sleeve (10) are respectively in contact with the adjacent positioning plates (5).

6. A standard modular super-large cathode roller according to claim 4, characterized in that: Both ends of the steel shaft (1) are provided with steps. The positioning plates (5) at both ends have a smaller inner diameter than the positioning plate (5) in the middle. A limiting tube (12) is sleeved on the steel shaft (1) outside the positioning plates (5) at the ends so that the positioning plates (5) at the ends are clamped between the limiting tube (12) and the steps. The copper germanium plate (4), the steel support plate (5) and the special-shaped titanium germanium plate (2) are all sleeved on the limiting tube.

7. A standard modular super-large cathode roller according to claim 6, characterized in that: A circle of groove is arranged on the inner edge of the outer side surface of the positioning plate (5) at the end, and one end of the limiting cylinder (12) close to the positioning plate (5) at the end is embedded in the groove.

8. A standard modular super-large cathode roller according to claim 3, characterized in that: The periphery of the special-shaped titanium-germanium plate (2) is in an outer step shape, and surrounds the reinforcing steel ring (6).

9. A standard modular super-large cathode roller according to claim 4, characterized in that: The copper roller surface (8) is formed by tightly winding copper wires from one end of the roller surface to the other end.

10. A method for manufacturing a standard modular super-large cathode roller, characterized in that: The following steps are involved: S1, processing the positioning plate (5); firstly, leveling the surface of the positioning plate blank so that the surface flatness of the annular positioning plate is ≤1.5 mm, then annealing the positioning plate blank, and stacking all the positioning plate blanks together to complete the processing in one step; S2, processing the copper plugging plate (4) and the steel support plate (3); firstly, leveling the surface of the copper plugging plate and the steel support plate blank, then annealing the copper plugging plate and the steel support plate blank respectively, and finally stacking the copper plugging plate and the steel support plate blank together, and processing them at a time in a processing center; S3, assembling the steel shaft (1), the positioning plate (5), the first support rod, the second support rod (11) and the sleeve (10); S4, assembling the first support rods one by one on the positioning plate (5), so that all the first support rods surround a roller surface (9); S5. After assembling the limiting cylinders (12) at both ends of the steel shaft (1), copper-germanium plates (4) are respectively assembled on the outer sides of the annular positioning plates (5) at both ends, a steel support plate (3) is assembled on the outer sides of the copper-germanium plates (4), a reinforcing steel ring (6) is assembled on the outer sides of the steel support plate (3), the copper blocking plate (4) and the steel support plate (3) are fixed to the end of the second support rod (11) by spot welding, and the reinforcing steel ring (6) is fixed to the steel support plate (3) by bolts; S6, placing the components assembled in S5 on a lathe, tightly winding the copper wire from one end of the roller surface (9) to the other end to form a uniform copper roller surface (8), and fixing the two ends of the copper wire to the copper germanium plate (4) by spot welding respectively; S7. Assemble the special-shaped titanium-germanium plate (2) on the outside of the reinforcing steel ring (6), fix the outer circle of the reinforcing steel ring (6) and the special-shaped titanium-germanium plate (6) by welding, flatten the welding surface between the special-shaped titanium plugging plate (4) and the reinforcing steel ring (6), heat-assemble the titanium roller (7), put it on the copper roller surface (8), and weld the end of the titanium roller (8) to the special-shaped titanium-germanium plate (2).

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