Zirconium and zirconium alloy strip surface treatment device

Abstract

The invention discloses a zirconium and zirconium alloy strip surface treatment device which comprises a frame body. The polishing roller is rotatably arranged on the frame body, the polishing roller comprises a polishing mandrel and a plurality of polishing roller brushes, and the plurality of polishing roller brushes are arranged on the polishing mandrel at intervals in the first direction; the supporting roller is rotatably arranged on the frame body, the supporting roller comprises a supporting mandrel and a plurality of supporting carrier rollers, the supporting carrier rollers are arranged on the supporting mandrel at intervals in the first direction, and the supporting roller is arranged opposite to the polishing roller in the radial direction of the polishing roller; the multiple supporting carrier rollers and the multiple polishing roller brushes are oppositely arranged in the radial direction of the polishing roller in a one-to-one correspondence mode. And the driving part can drive the polishing rollers to rotate so that the polishing roller brushes can polish the strips penetrating through the positions between the corresponding supporting carrier rollers and the corresponding polishing roller brushes. The zirconium and zirconium alloy strip surface treatment device can improve the polishing quality of the strip.

Description

Technical Field

[0001] The present invention relates to the technical field of zirconium alloy material preparation, and in particular to a surface treatment device for zirconium and zirconium alloy strips. Background Art

[0002] Zirconium and zirconium alloys have a small thermal neutron absorption cross-section, high thermal conductivity, good mechanical properties, and excellent corrosion resistance. High-quality nuclear-grade zirconium alloy strips are produced and processed to a certain size through ingot forging, quenching, rolling, etc., and then sheared and pickled to reach the finished product state. The manufacturing process must not only consider the various physical and chemical properties of the material and the product size to meet technical requirements, but also require the finished product to avoid contact with harmful substances such as copper, aluminum, silicon, and sulfur to ensure that the surface of the finished plate is clean and pollution-free. Therefore, the surface treatment effect of the zirconium alloy strip is directly related to whether it can meet the use requirements of nuclear-grade zirconium materials. In the related technology, the current surface treatment of the strip is completed by a pair of polishing rollers. The main problem is that there is color difference and poor uniformity on the surface of the strip after polishing, which cannot meet the use requirements of high-quality nuclear-grade zirconium alloy strip polished products. Summary of the Invention

[0003] The present invention is based on the inventors' discovery and understanding of the following facts and problems: Prolonged polishing of a strip at a fixed position can cause wear on the polishing roller and support roller, increasing the gap between the strip and the polishing roller. This can also lead to differences in polishing force at the head and tail of the strip if the strip is very long. The polishing roller must have a vertical adjustment device that uses pressure or current detection to adjust the polishing roller's position in real time. If the polishing roller is a continuous roller, the narrow strip will inevitably cause wear at that polishing position during polishing, while the rest of the polishing roller will remain unworn. If this position is to be used again, the gap between this narrow strip and other positions will become larger. Since the polishing roller can only be adjusted up and down as a whole, this position will not meet the pressure requirements and cannot be used. If part of the width of the strip is at this position during feeding, this will also cause polishing differences across the width.

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides a surface treatment device for zirconium and zirconium alloy strips.

[0005] The surface treatment device for zirconium and zirconium alloy strips according to an embodiment of the present invention comprises:

[0006] frame;

[0007] a polishing roller rotatably mounted on the frame, comprising a polishing mandrel and a plurality of polishing roller brushes, wherein the axial direction of the polishing mandrel is a first direction, the plurality of polishing roller brushes are spaced apart on the polishing mandrel along the first direction, and the outer peripheral surface of each polishing roller brush is used for polishing the strip;

[0008] A support roller, wherein the support roller is rotatably arranged on the frame, the support roller comprises a support core shaft and a plurality of support rollers, the axial direction of the support core shaft is the first direction, the plurality of support rollers are arranged on the support core shaft at intervals along the first direction, the outer peripheral surface of each support roller is used to support the strip, the support roller is arranged opposite to the polishing roller in the radial direction of the polishing roller, and the plurality of support rollers are respectively arranged opposite to the plurality of polishing roller brushes in a one-to-one correspondence in the radial direction of the polishing roller;

[0009] A driving portion is provided, wherein the driving portion can drive the polishing roller to rotate so that the polishing roller brush can polish the strip passing between the corresponding supporting roller and the corresponding polishing roller brush.

[0010] In some embodiments, the zirconium and zirconium alloy strip surface treatment device further comprises a pinch roller, wherein the pinch roller is used to convey the strip;

[0011] The support rollers are arranged opposite to the corresponding polishing rollers in the radial direction of the polishing rollers and form a polishing roller group;

[0012] The pinch rollers cooperate with the polishing roller assembly so that the strip surfaces on both sides of the polishing rollers form an angle less than 180°.

[0013] In some embodiments, there are multiple polishing roller groups, and the multiple polishing roller groups are spaced apart in the moving direction of the strip;

[0014] In the moving direction of the strip, two adjacent ones of the plurality of polishing roller groups cooperate with each other, and the pinch roller cooperates with the adjacent polishing roller groups, so that the strip surfaces on both sides of each polishing roller form an angle less than 180°.

[0015] In some embodiments, the support roller and the polishing roller of each polishing roller group are arranged opposite to each other in the up-down direction, the plurality of support rollers of each polishing roller group are respectively arranged opposite to each other in the up-down direction in a one-to-one correspondence with the plurality of polishing roller brushes, and the positions of the plurality of support rollers of each polishing roller group in the first direction respectively correspond to the positions of the plurality of polishing roller brushes in the first direction.

[0016] The contact positions of the two adjacent support rollers with the strip are respectively on two horizontal planes, the two adjacent support rollers are located on both sides of the strip in the up and down directions, and the contact positions of the pinch roller and the adjacent support roller with the strip are respectively on two horizontal planes.

[0017] In some embodiments, the support roller of one of two adjacent polishing roller groups is located above the polishing roller, and the support roller of the other of two adjacent polishing roller groups is located below the polishing roller.

[0018] In some embodiments, the angle between the strip surfaces on both sides of the polishing roller is greater than or equal to 150° and less than or equal to 170°.

[0019] In some embodiments, the size of the polishing roller brush in the first direction is L1, the size of the strip in the first direction is L2, L1-L2=L3, L3 is greater than or equal to 40 mm and less than or equal to 60 mm;

[0020] The distance between two adjacent polishing roller brushes in the first direction is greater than or equal to 50 mm and less than or equal to 80 mm.

[0021] In some embodiments, the outer surface of the polishing mandrel is provided with scale marks extending along the first direction;

[0022] The outer surface of the support core shaft is provided with scale marks extending along the first direction;

[0023] The polishing mandrel is an air-expanding mandrel, and the polishing roller brush mounted thereon is fixed by means of ventilation expansion;

[0024] The support core shaft is an air expansion shaft, and the support core shaft fixes the support roller sleeved thereon by expanding through ventilation.

[0025] In some embodiments, the polishing roller brush is a non-woven roller brush, and the mesh number of the polishing roller brush is greater than or equal to 1200 and less than or equal to 1800;

[0026] The number of the polishing roller brushes on each polishing mandrel is greater than or equal to 5 and less than or equal to 8;

[0027] The number of the support rollers on each support core shaft is greater than or equal to 5 and less than or equal to 8;

[0028] A dimension L1 of each polishing roller brush in the first direction is greater than or equal to 60 mm and less than or equal to 80 mm.

[0029] The surface treatment device for zirconium and zirconium alloy strips according to the embodiment of the present invention further comprises:

[0030] A spraying device, which can spray deionized water onto the surface of the polishing roller brush and the surface of the strip;

[0031] A blowing device is used to blow air to the polished strip.

[0032] The beneficial effects of the present invention are as follows: the polishing roller and the support roller of the zirconium and zirconium alloy strip surface treatment device according to the embodiment of the present invention are arranged in sections, thereby reducing the influence of wear on the polishing of the strip, and the strip has a wrap angle with the polishing roller, thereby improving the polishing uniformity of the strip, thereby improving the polishing effect, and thus improving the polishing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of a surface treatment device for zirconium and zirconium alloy strips according to an embodiment of the present invention.

[0034] Figure 2 is a schematic diagram of a polishing roller assembly according to an embodiment of the present invention.

[0035] Reference numerals:

[0036] 1. Frame;

[0037] 2. Polishing roller, 21. Polishing mandrel, 22. Polishing roller brush;

[0038] 3. Support roller, 31. Support mandrel, 32. Support roller;

[0039] 4. Spray device. DETAILED DESCRIPTION

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0041] The following describes the surface treatment device for zirconium and zirconium alloy strips according to an embodiment of the present invention with reference to the accompanying drawings. Figure 1 and Figure 2 As shown, the surface treatment device for zirconium and zirconium alloy strips according to an embodiment of the present invention includes a frame 1, a polishing roller 2, a support roller 3 and a driving part.

[0042] The polishing roller 2 is rotatably mounted on the frame 1 and includes a polishing mandrel 21 and a plurality of polishing brushes 22. The axial direction of the polishing mandrel 21 is a first direction, and the plurality of polishing brushes 22 are spaced apart along the first direction on the polishing mandrel 21. The outer peripheral surface of each polishing brush 22 is used to polish the strip.

[0043] The support roller 3 is rotatably mounted on the frame 1 and includes a support mandrel 31 and a plurality of support rollers 32. The support mandrel 31 is oriented axially in a first direction, and the plurality of support rollers 32 are spaced apart along the first direction on the support mandrel 31. The outer circumference of each support roller 32 supports the strip. The support roller 3 is radially opposed to the polishing roller 2, and the plurality of support rollers 32 are radially opposed to the plurality of polishing roller brushes 22 in a one-to-one correspondence with each other.

[0044] The drive unit drives the polishing rollers 2 to rotate so that the polishing roller brushes 22 can polish the strip passing between the corresponding support rollers 32 and the polishing roller brushes 22. Specifically, the strip passes between the support rollers 32 and the polishing roller brushes 22, with the support rollers 3 providing support and limiting the position, while the polishing roller brushes 22 rotate to polish the surface of the moving strip. For example, the drive unit is a motor.

[0045] The present invention is based on the inventors' discovery and understanding of the following facts and problems: Prolonged polishing of a strip at a fixed position can cause wear on the polishing roller and support roller, increasing the gap between the strip and the polishing roller. This can also lead to differences in polishing force at the head and tail of the strip if the strip is very long. The polishing roller must have a vertical adjustment device that uses pressure or current detection to adjust the polishing roller's position in real time. If the polishing roller is a continuous roller, the narrow strip will inevitably cause wear at that polishing position during polishing, while the rest of the polishing roller will remain unworn. If this position is to be used again, the gap between this narrow strip and other positions will become larger. Since the polishing roller can only be adjusted up and down as a whole, this position will not meet the pressure requirements and cannot be used. If part of the width of the strip is at this position during feeding, this will also cause polishing differences across the width.

[0046] According to an embodiment of the present invention, the polishing roller 2 of the zirconium and zirconium alloy strip surface treatment apparatus comprises a plurality of spaced-apart polishing brushes 22, and the support roller 3 comprises a plurality of spaced-apart support rollers 32. The plurality of support rollers 32 are arranged in a one-to-one correspondence with the plurality of polishing brushes 22 in the radial direction of the polishing roller 2. In other words, the polishing roller 2 and support roller 3 are divided into multiple sections. This allows a single strip to be polished between a set of opposing support rollers 32 and polishing brushes 22. During the polishing process, the strip is uniformly worn only by that set of support rollers 32 and polishing brushes 22, making the degree of wear easy to observe and detect. The strip does not wear other support rollers 32 and polishing brushes 22. Consequently, if one set of support rollers 32 and polishing brushes 22 wears, that set can be replaced individually, or polishing can be continued using another set of support rollers 32 and polishing brushes 22, thereby ensuring polishing quality. Furthermore, multiple groups of supporting rollers 32 and polishing roller brushes 22 that are arranged opposite to each other can polish multiple strips at the same time, thereby improving the polishing efficiency and reducing the influence of adjacent strips during polishing.

[0047] In some embodiments, the zirconium and zirconium alloy strip surface treatment apparatus further includes pinch rollers for conveying the strip. Support rollers 3 are radially disposed opposite corresponding polishing rollers 2 to form a polishing roller assembly. The pinch rollers and polishing roller assembly cooperate to ensure that the strip surfaces on either side of the polishing rollers 2 form an angle of less than 180°.

[0048] Specifically, by adjusting the radial positions of the pinch rollers and the polishing roller assembly relative to the polishing roller 2, the support rollers 3 and 2 support and limit the strip as it passes between the support rollers 3 and 2. This causes the strip to change direction and form an angle as it passes between the support rollers 3 and 2. That is, in the direction of the strip's movement, the surfaces of the strip on either side of the support rollers 3 and 2 form an angle. The angle between the surfaces of the strip on either side of the support rollers 3 is greater than 180°, while the angle between the surfaces of the strip on either side of the polishing rollers 2 and facing the polishing rollers is less than 180°. In other words, the angle less than 180° formed by the strip faces the polishing rollers 2, thereby increasing the contact area between the polishing rollers 2 and the strip.

[0049] like Figure 1 As shown, in some embodiments, there are multiple polishing roller groups, each of which is spaced apart in the direction of movement of the strip. The support rollers 3 and polishing rollers 2 of each polishing roller group are arranged in a vertically opposed relationship. The number of support rollers 32 in each polishing roller group is the same as the number of polishing roller brushes 22. The multiple support rollers 32 of each polishing roller group are arranged in a one-to-one correspondence with the multiple polishing roller brushes 22 in the vertical direction, and the positions of the multiple support rollers 32 of each polishing roller group in the first direction correspond to the positions of the multiple polishing roller brushes 22 in the first direction. This allows the multiple support rollers 32 to be matched with the multiple polishing roller brushes 22 in a one-to-one correspondence to polish the strip. The opposing polishing roller brushes 22 and support rollers 32 of each group have the same dimensions in the first direction.

[0050] The first direction can be the left-right direction, and the direction of movement of the strip can be the forward direction. The up-down, left-right, and front-back directions are indicated by arrows in the figure. For example, the axial direction of the polishing mandrel 21 and the axial direction of the support mandrel 31 are both left-right. The direction of movement of the strip is the front-back direction, and the multiple polishing roller groups are spaced apart in the front-back direction. The positions of the multiple support rollers 32 in each polishing roller group in the left-right direction correspond to the positions of the multiple polishing roller brushes 22 in the left-right direction.

[0051] In some embodiments, adjacent pairs of polishing rollers in the plurality of polishing roller groups cooperate with each other in the direction of the strip's movement, and the pinch rollers cooperate with adjacent polishing roller groups so that the strip surface on either side of each polishing roller 2 forms an angle less than 180°. The position of the polishing roller groups can be adjusted to adjust the angle between the strip surface and each polishing roller 2.

[0052] Specifically, the contact positions between two adjacent support rollers 3 and the strip are located on two horizontal planes, and the two adjacent support rollers 3 are located on either side of the strip in the vertical direction. The contact positions between the pinch roller and the adjacent support roller 3 and the strip are also located on two horizontal planes. As a result, the strip can be supported and restrained by support rollers 3 located at different vertical positions when passing through each polishing roller set, thereby facilitating the strip to change direction. The strip surfaces on either side of each polishing roller 2 form an angle of less than 180°, i.e., each angle of the strip faces the polishing roller 2, thereby increasing the polishing area.

[0053] Due to issues such as strip uniformity and camber, as well as the vibration of the polishing roller and support roller during actual operation, there will be differences in the polishing force between the strip and the polishing roller in the width and length directions. This will cause color differences and poor uniformity on the polished surface. By increasing the polishing area at each angle of the strip toward the polishing roller 2, the contact difference can be resolved.

[0054] like Figure 2 As shown, in some embodiments, the support roller 3 of one of two adjacent polishing roller groups is located above the polishing roller 2, and the support roller 3 of the other of the two adjacent polishing roller groups is located below the polishing roller 2. This facilitates uniform polishing of both sides of the strip.

[0055] In some embodiments, the angle between the strip surfaces on both sides of the polishing roller 2 is greater than or equal to 150° and less than or equal to 170°. For example, the angle between the strip surfaces on both sides of the polishing roller 2 is 155°, 160°, 165°, 167°, or 168°.

[0056] In some embodiments, the polishing roller brush 22 has a dimension L1 in the first direction, and the strip has a dimension L2 in the first direction, where L1-L2=L3, and L3 is greater than or equal to 40 mm and less than or equal to 60 mm. In other words, the polishing roller brush 22 has a dimension 40 to 60 mm greater than the strip in the first direction, so that each polishing roller brush 22 has a margin of 20 to 30 mm on its side.

[0057] In some embodiments, the sizes of the plurality of polishing roller brushes 22 on the polishing mandrel 21 in the first direction may be the same or different.

[0058] In some embodiments, the distance between two adjacent polishing roller brushes 22 in the first direction is greater than or equal to 50 mm and less than or equal to 80 mm, thereby preventing the two adjacent polishing roller brushes 22 from affecting each other. For example, the distance between two adjacent polishing roller brushes 22 in the first direction is 60 mm.

[0059] In some embodiments, the outer surface of the polishing mandrel 21 is provided with scale markings extending along a first direction, and the position of the polishing roller brush 22 can be determined based on the scale markings on the polishing mandrel 21. The polishing mandrel 21 is a pneumatic expansion mandrel, and the polishing mandrel 21 is fixed to the polishing roller brush 22 mounted thereon by expanding the mandrel 21 through ventilation. For example, the polishing mandrel 21 is a steel tile-type pneumatic expansion mandrel.

[0060] The outer surface of the support mandrel 31 is provided with graduated markings extending along a first direction. The markings on the support mandrel 31 can be used to determine the position of the support roller 32. The support mandrel 31 is a pneumatically expandable shaft, which secures the support roller 32 mounted thereon by expanding through ventilation. For example, the support mandrel 31 is a steel tile-type pneumatically expandable shaft. The support roller 32 is made of a polymer material. The surface hardness of the support roller 32 is HRB30 to HRB50. This makes the support roller 32 wear-resistant and has low water absorption properties, making it less susceptible to deformation after long-term use in aquatic environments.

[0061] In some embodiments, the polishing roller brush 22 is a non-woven fabric roller brush, and the mesh number of the polishing roller brush 22 is greater than or equal to 1200 and less than or equal to 1800. For example, the mesh number of the polishing roller brush 22 is 1300, 1400, 1500, 1600 or 1700.

[0062] In some embodiments, for narrower strips, the number of polishing roller brushes 22 on each polishing mandrel 21 is greater than or equal to 5 and less than or equal to 8, the number of support rollers 32 on each support mandrel 31 is greater than or equal to 5 and less than or equal to 8, and the dimension L1 of each polishing roller brush 22 in the first direction is greater than or equal to 60 mm and less than or equal to 80 mm. For example, for narrower strips, the number of polishing roller brushes 22 on each polishing mandrel 21 is 5, the number of support rollers 32 on each support mandrel 31 is 5, and the dimension L1 of the polishing roller brush 22 in the first direction can be 60 mm, 65 mm, 70 mm, 75 mm, or 80 mm.

[0063] In some embodiments, the surface treatment device for zirconium and zirconium alloy strips further includes an uncoiler, a polishing device (polishing roller group), a spray device 4, a blowing device, a paper padding mechanism, a deviation correction system and a winder.

[0064] The strip is unwound from the unwinder, passes through the polishing device (polishing roller assembly) and other structures, and finally adhered to the paper sleeve tightened on the winder with metal tape to complete the strip threading. After threading, the strip enters the polishing device (polishing roller assembly) and is pinched and transported by polymer material pinch rollers.

[0065] The spray device 4 sprays deionized water onto the surface of the polishing roller brush 22 and the surface of the strip. Specifically, the spray device 4 includes multiple spray manifolds, which can be located on the sides of the polishing roller brush 2. During the polishing process, the spray manifolds spray a large amount of deionized water onto both surfaces of the strip and the surface of the polishing roller brush 22, reducing surface pitting caused by overheating during polishing and preventing fires during zirconium alloy polishing.

[0066] The blowing device is used to blow air on the polished strip. Specifically, after exiting the polishing device (polishing roller assembly), a set of blowing devices is placed on the top, bottom, and sides of the strip to dry it with hot air, ensuring that the strip surface is thoroughly dried and free of water stains. The air outlet temperature of the blowing device is greater than or equal to 40°C and less than or equal to 70°C. After being dried by the hot air, the strip passes through guide rollers and a correction device and is then reeled by a winder. Simultaneously, the paper padding machine is activated to insert paper.

[0067] According to the embodiment of the present invention, the polishing roller 2 and the support roller 3 of the zirconium and zirconium alloy strip surface treatment device are arranged in sections, so as to reduce the influence of wear on the polishing of the strip, and the strip has a wrap angle with the polishing roller 2, so as to improve the polishing uniformity of the strip, thereby improving the polishing effect and thus improving the polishing quality.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0070] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0071] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0072] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0073] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A surface treatment device for zirconium and zirconium alloy strips, characterized in that: include: frame; a polishing roller rotatably mounted on the frame, comprising a polishing mandrel and a plurality of polishing roller brushes, wherein the axial direction of the polishing mandrel is a first direction, the plurality of polishing roller brushes are spaced apart on the polishing mandrel along the first direction, and the outer peripheral surface of each polishing roller brush is used for polishing the strip; A support roller, wherein the support roller is rotatably arranged on the frame, the support roller comprises a support core shaft and a plurality of support rollers, the axial direction of the support core shaft is the first direction, the plurality of support rollers are arranged on the support core shaft at intervals along the first direction, the outer peripheral surface of each support roller is used to support the strip, the support roller is arranged opposite to the polishing roller in the radial direction of the polishing roller, and the plurality of support rollers are respectively arranged opposite to the plurality of polishing roller brushes in a one-to-one correspondence in the radial direction of the polishing roller; A driving portion is provided, wherein the driving portion can drive the polishing roller to rotate so that the polishing roller brush can polish the strip passing between the corresponding supporting roller and the corresponding polishing roller brush.

2. The surface treatment device for zirconium and zirconium alloy strips according to claim 1, characterized in that: The zirconium and zirconium alloy strip surface treatment device further comprises a pinch roller, which is used to convey the strip; The support rollers are arranged opposite to the corresponding polishing rollers in the radial direction of the polishing rollers and form a polishing roller group; The pinch rollers cooperate with the polishing roller assembly so that the strip surfaces on both sides of the polishing rollers form an angle less than 180°.

3. The surface treatment device for zirconium and zirconium alloy strips according to claim 2, characterized in that: There are multiple polishing roller groups, and the multiple polishing roller groups are arranged at intervals in the moving direction of the strip; In the moving direction of the strip, two adjacent ones of the plurality of polishing roller groups cooperate with each other, and the pinch roller cooperates with the adjacent polishing roller groups, so that the strip surfaces on both sides of each polishing roller form an angle less than 180°.

4. The surface treatment device for zirconium and zirconium alloy strips according to claim 3, characterized in that: The supporting roller and the polishing roller of each polishing roller group are arranged opposite to each other in the up-down direction, the multiple supporting rollers of each polishing roller group are respectively arranged opposite to the multiple polishing roller brushes in the up-down direction in a one-to-one correspondence, and the positions of the multiple supporting rollers of each polishing roller group in the first direction respectively correspond to the positions of the multiple polishing roller brushes in the first direction; The contact positions of the two adjacent support rollers with the strip are respectively on two horizontal planes, the two adjacent support rollers are located on both sides of the strip in the up and down directions, and the contact positions of the pinch roller and the adjacent support roller with the strip are respectively on two horizontal planes.

5. The surface treatment device for zirconium and zirconium alloy strips according to claim 3, characterized in that: The support roller of one of the two adjacent polishing roller groups is located above the polishing roller, and the support roller of the other of the two adjacent polishing roller groups is located below the polishing roller.

6. The surface treatment device for zirconium and zirconium alloy strips according to claim 2, characterized in that: The angle between the strip surfaces on both sides of the polishing roller is greater than or equal to 150° and less than or equal to 170°.

7. The surface treatment device for zirconium and zirconium alloy strips according to claim 1, characterized in that: The size of the polishing roller brush in the first direction is L1, the size of the strip in the first direction is L2, L1-L2=L3, L3 is greater than or equal to 40 mm and less than or equal to 60 mm; The distance between two adjacent polishing roller brushes in the first direction is greater than or equal to 50 mm and less than or equal to 80 mm.

8. The surface treatment device for zirconium and zirconium alloy strips according to claim 1, characterized in that: The outer surface of the polishing mandrel is provided with scale marks extending along the first direction; The outer surface of the support core shaft is provided with scale marks extending along the first direction; The polishing mandrel is an air-expanding mandrel, and the polishing roller brush mounted thereon is fixed by means of ventilation expansion; The support core shaft is an air expansion shaft, and the support core shaft fixes the support roller sleeved thereon by expanding through ventilation.

9. The surface treatment device for zirconium and zirconium alloy strips according to claim 8, characterized in that: The polishing roller brush is a non-woven roller brush, and the mesh number of the polishing roller brush is greater than or equal to 1200 and less than or equal to 1800; The number of the polishing roller brushes on each polishing mandrel is greater than or equal to 5 and less than or equal to 8; The number of the support rollers on each support core shaft is greater than or equal to 5 and less than or equal to 8; A dimension L1 of each polishing roller brush in the first direction is greater than or equal to 60 mm and less than or equal to 80 mm.

10. The surface treatment device for zirconium and zirconium alloy strips according to any one of claims 1 to 9, characterized in that: Also includes A spraying device, which can spray deionized water onto the surface of the polishing roller brush and the surface of the strip; A blowing device is used to blow air to the polished strip.

Images