Niobium alloy surface treatment device and treatment method

Abstract

The invention discloses a niobium alloy surface treatment device and method. The niobium alloy surface treatment method comprises the steps that the height of a surface treatment structure is adjusted, and niobium alloy is positioned; then, the Nth cavity surface of the niobium alloy is polished through a surface treatment structure, and N is preset to be 1; then N is made to be equal to N + 1, the height of the surface treatment structure is adjusted, the Nth cavity face of the niobium alloy is polished through the surface treatment structure, the operation is repeated till the Nth cavity face of the niobium alloy is the bottom cavity face of the niobium alloy, the height and the position of the surface treatment structure are adjusted, the bottom cavity face of the niobium alloy is polished through the surface treatment structure, and the niobium superconducting cavity is obtained; according to the scheme, each cavity surface is sequentially polished in a step-by-step treatment mode, and the height and the position of the surface treatment structure are adjusted in each step, so that the machining quality and the uniformity of each cavity surface are ensured, and the precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of niobium alloy processing, and in particular to a niobium alloy surface treatment device and a treatment method. Background Art

[0002] As a superconducting material with excellent performance, niobium is widely used in the manufacture of superconducting cavities in particle accelerators. These superconducting cavities play a vital role in high-energy physics research. As major domestic scientific research projects move from the experimental stage to the large-scale production stage, the demand for high-quality niobium superconducting cavity workpieces has increased dramatically. In this context, it is necessary to improve the quality of workpieces while improving production efficiency to meet the growing market demand.

[0003] In the production process of niobium superconducting cavities, surface treatment is an important process that determines their superconducting properties. However, the traditional manual processing method is still the main method. Manual operation often requires a high level of technical skills, but there are still problems such as low efficiency and uneven surface treatment. These problems directly affect the performance and production yield of superconducting cavity workpieces. In addition, manual operation also has the problems of high labor intensity and many safety hazards, which further limits the applicability of traditional processes in high-efficiency and high-quality manufacturing.

[0004] In order to improve these problems, automated processing methods have been gradually introduced into the field of metal processing and manufacturing in recent years; however, common automated processing methods face special challenges in the surface treatment of niobium superconducting cavities. Due to the characteristics of niobium materials and the complex shape of superconducting cavities, it is difficult for general automated equipment to achieve high-precision surface treatment. For example, when operating niobium alloys, common mechanical grinding equipment is prone to damage the workpiece surface due to excessive grinding, thereby reducing the performance of the workpiece.

[0005] Therefore, in view of the special needs of niobium alloy surface treatment, a new processing method is urgently needed to overcome the limitations of traditional manual operation and general automation equipment in terms of efficiency and precision. Summary of the invention

[0006] The purpose of the present invention is to provide a niobium alloy surface treatment device and a treatment method to solve the problem of a niobium alloy surface treatment device and a treatment method.

[0007] To achieve this object, the present invention adopts the following technical solutions: A niobium alloy surface treatment method, comprising: Step S100: feeding the niobium alloy into a processing box and positioning the niobium alloy; Step S200: adjusting the height of the surface treatment structure, and grinding the Nth cavity surface of the niobium alloy through the surface treatment structure, where N is preset to be 1; Step S300: let N=N+1, adjust the height of the surface treatment structure, and polish the Nth cavity surface of the niobium alloy through the surface treatment structure; Step S400: Repeat step S300 until the Nth cavity surface of the niobium alloy is the bottom cavity surface of the niobium alloy, adjust the height and position of the surface treatment structure, and polish the bottom cavity surface of the niobium alloy through the surface treatment structure to obtain a niobium superconducting cavity; The processing path of the surface treatment structure for the N+1th cavity surface is a proportional reduction of the processing path of the Nth cavity surface.

[0008] Optionally, before adjusting the height of the surface treatment structure, the method further comprises: Step S310: Obtaining the machining path deviation ΔP of the N-1th cavity surface N ; Step S320: According to the processing path deviation ΔP N , calculate the descending height ΔH of the surface treatment structure and calculate the reduction factor α; Adjust the height of the surface treatment structure, including: Step S330: Subtract the descent height ΔH from the preset standard descent height to obtain the target descent height H g ; Step S331: descend according to the target height H g , decreasing the height of the surface treatment structure; The Nth cavity surface of the niobium alloy is polished by a surface treatment structure, including: Step S340: Obtaining the processing path of the Nth cavity surface according to the product of the reduction factor α and the processing path of the N-1th cavity surface; Step S341: grinding the Nth cavity surface of the niobium alloy through a surface treatment structure according to the processing path of the Nth cavity surface.

[0009] Optionally, step S310 includes: Step S311: traverse the processing path of the N-1th cavity surface through the pressure sensor to obtain the pressure distribution matrix P(x, y)={P1, P2, ..., Pm} of the N-1th cavity surface; Step S312: Obtaining a pressure deviation matrix ΔP(x, y) according to the difference between the pressure distribution matrix P(x, y) and a preset standard pressure distribution; Step S313: Calculate ΔP according to the pressure deviation matrix ΔP(x, y), the depth z of the N-1th cavity surface and the first formula. N , the first formula is: .

[0010] Optionally, step 320 includes: Step S321: Calculate the descending height ΔH=ΔH0-λ1·ΔP N ; Step S322: Calculate the reduction factor α=α0-λ2·ΔP N ; Among them, λ1 is the height adjustment coefficient, λ2 is the reduction adjustment coefficient, ΔH0 is the initial descent height, and α0 is the initial path factor.

[0011] Optionally, the initial descending height ΔH0 is equal to the processing width of the surface treatment structure.

[0012] Optionally, the initial path factor α0 is proportional to the depth of the Nth cavity surface.

[0013] A niobium alloy surface treatment device, using the above-mentioned niobium alloy surface treatment method, comprises: Processing box; a conveyor belt passing through the processing box and used to feed the niobium alloy into the processing box; A surface treatment structure for surface treatment of niobium alloy; The adjusting structure is used for adjusting the position of the surface treatment structure relative to the niobium alloy.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The niobium alloy surface treatment device and treatment method provided by the present invention, after the niobium alloy is sent into the processing box, each cavity surface is polished in turn in a step-by-step processing manner, and the height and position of the surface treatment structure are adjusted in each step, so as to ensure the processing quality and uniformity of each cavity surface, and at the same time, ensure that the processing of the subsequent cavity surface can be closely combined with the results of the previous steps, improve the consistency of the surface treatment, and effectively reduce the cumulative error in the processing process, thereby improving the accuracy. In addition, the processing path of the N+1 cavity surface is set to be a proportional reduction of the processing path of the Nth cavity surface through the surface treatment structure, which can improve the overall reaction rate and thus improve the efficiency. Therefore, the present application has the advantages of high efficiency and high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0017] Figure 1 A schematic flow chart of a niobium alloy surface treatment method provided by an embodiment of the present invention; Figure 2 This is a front view schematic diagram of a niobium alloy surface treatment device provided by an embodiment of the present invention.

[0018] Illustrations: 1. Processing box; 2. Adjustment mechanism; 3. Power element; 4. Base; 5. Surface treatment structure. DETAILED DESCRIPTION

[0019] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0021] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] The embodiment of the present invention provides a niobium alloy surface treatment device, which is suitable for the scenario of surface treatment of the surface of the niobium alloy. The niobium alloy is mainly used to make a superconducting cavity. The superconducting cavity has an elliptical structure, a single-ring cavity structure, a multi-ring cavity structure, etc., and has an arc-shaped cavity structure.

[0023] like Figure 2As shown, the niobium alloy surface treatment device in this embodiment includes: a processing box 1 and a conveyor belt installed together on a base 4, the conveyor belt passes through the processing box 1, and is used to feed the niobium alloy into the processing box 1; an adjustment mechanism 2 is also provided on one side of the processing box 1, and a surface treatment structure 5 is installed at the adjustment end of the adjustment mechanism 2. The surface treatment structure 5 can select a surface treatment disk, and the surface treatment structure 5 is used to perform surface treatment on the niobium alloy; the adjustment structure 2 is used to adjust the position of the surface treatment structure 5 relative to the niobium alloy; in addition, the surface treatment structure 5 is integrated with a power element 3 to realize the rotation of the surface treatment disk.

[0024] The adjustment mechanism 2 may be a mechanical arm, a three-axis mobile platform or the like, and the three-axis mobile platform refers to a structure integrating a Z-axis linear motor, a Y-axis linear motor, and an X-axis linear motor, all of which have the ability to move in the processing box 1. The power element 3 may be a servo motor, a stepper motor or the like.

[0025] On the basis of the above-mentioned niobium alloy surface treatment device, this embodiment further provides a niobium alloy surface treatment method applied to the niobium alloy surface treatment device. By improving the niobium alloy surface treatment method, the efficiency and accuracy of the niobium alloy surface treatment method are improved.

[0026] like Figure 1 As shown, the niobium alloy surface treatment method in this embodiment specifically includes: Step S100: feeding the niobium alloy into the processing box 1 and positioning the niobium alloy; Step S200: adjusting the height of the surface treatment structure 5, and grinding the Nth cavity surface of the niobium alloy through the surface treatment structure 5, where N is preset to be 1; wherein, when grinding the first cavity surface, its initial processing path and initial height are determined according to the size of the niobium superconducting cavity, and the subsequent height adjustment and processing path adjustment are essentially based on the above initial processing path and initial height, which can improve the overall efficiency.

[0027] Step S300: let N=N+1, adjust the height of the surface treatment structure 5, and grind the Nth cavity surface of the niobium alloy through the surface treatment structure 5; wherein the Nth cavity surface is an annular belt-shaped area, the N+1th cavity surface is located below the Nth cavity surface, the N+1th cavity surface can be connected to the Nth cavity surface, or can partially overlap with the Nth cavity surface, but there must be a partial area located below the Nth cavity surface; at this time, the surface treatment structure 5 performs surface treatment in a circular motion; Step S400: Repeat step S300 until the Nth cavity surface of the niobium alloy is the bottom cavity surface of the niobium alloy, adjust the height and position of the surface treatment structure 5, and grind the bottom cavity surface of the niobium alloy through the surface treatment structure 5 to obtain a niobium superconducting cavity; wherein the bottom cavity surface of the niobium alloy refers to the central area of ​​the superconducting cavity, which has a smaller curvature. When the Nth cavity surface coincides with the bottom cavity surface, the surface treatment structure 5 can be subjected to surface treatment by plane grinding.

[0028] Among them, the processing path of the surface treatment structure 5 for the N+1th cavity surface is a proportional reduction of the processing path of the Nth cavity surface. It should be noted that the processing paths corresponding to the above-mentioned cavity surfaces except the bottom cavity surface are all annular. For the superconducting cavity, it includes the first cavity surface from top to bottom...the Nth cavity surface and the bottom cavity surface.

[0029] Specifically, the niobium alloy surface treatment method in this embodiment is to grind each cavity surface in turn in a step-by-step manner after the niobium alloy is sent into the processing box, and the height and position of the surface treatment structure 5 are adjusted in each step, so as to ensure the processing quality and uniformity of each cavity surface, and at the same time, ensure that the processing of the subsequent cavity surface can be closely combined with the results of the previous steps, improve the consistency of the surface treatment, and effectively reduce the cumulative error in the processing process, thereby improving the accuracy. In addition, the processing path of the N+1 cavity surface by the surface treatment structure 5 is a proportional reduction of the processing path of the Nth cavity surface, which can improve the overall reaction rate and thus improve the efficiency. Therefore, this embodiment has the advantages of high efficiency and high accuracy.

[0030] Furthermore, before adjusting the height of the surface treatment structure 5 in step S300, the method further includes: Step S310: Obtaining the machining path deviation ΔP of the N-1th cavity surface N ; Step S320: According to the processing path deviation ΔP N , calculate the descending height ΔH of the surface treatment structure 5, and calculate the reduction factor α; The specific steps of adjusting the height of the surface treatment structure 5 include: Step S330: Subtract the descent height ΔH from the preset standard descent height to obtain the target descent height H g ; Step S331: descend according to the target height H g , lowering the height of the surface treatment structure 5; The specific steps of grinding the Nth cavity surface of the niobium alloy by the surface treatment structure 5 include: Step S340: Obtaining the processing path of the Nth cavity surface according to the product of the reduction factor α and the processing path of the N-1th cavity surface; Step S341 : grinding the Nth cavity surface of the niobium alloy by the surface treatment structure 5 according to the processing path of the Nth cavity surface.

[0031] Exemplarily, the niobium alloy surface treatment method specifically includes: Step S100: feeding the niobium alloy into the processing box 1 and positioning the niobium alloy; Step S200: adjusting the height of the surface treatment structure 5, and grinding the Nth cavity surface of the niobium alloy through the surface treatment structure 5, where N is preset to be 1; Step S301: let N=N+1; Step S310: Obtaining the machining path deviation ΔP of the N-1th cavity surface N ; It can accurately evaluate the previous processing steps to ensure that the data of each step can be used as accurate input for subsequent operations, significantly reducing the potential cumulative errors in the processing process; Step S320: According to the processing path deviation ΔP N , calculate the drop height ΔH of the surface treatment structure 5, and calculate the reduction factor α; by calculating the drop height ΔH and the reduction factor α, the adjustment range of the surface treatment structure 5 is accurately controlled, so that the processing path is closer to the theoretical design value. This combination of calculation and adjustment not only improves the processing accuracy, but also effectively solves the problem of uneven surface caused by improper height adjustment in traditional processing methods; Step S330: Subtract the descent height ΔH from the preset standard descent height to obtain the target descent height H g ; Step S331: descend according to the target height H g , lowering the height of the surface treatment structure 5; Step S340: Obtaining the processing path of the Nth cavity surface according to the product of the reduction factor α and the processing path of the N-1th cavity surface; Step S341: according to the processing path of the Nth cavity surface, the Nth cavity surface of the niobium alloy is polished by the surface treatment structure 5; the uniformity and continuity of the processing path of each cavity surface are ensured, especially in the processing of complex curved surfaces. This method not only improves the consistency of surface treatment, but also effectively reduces the influence of repeated processing on material properties, thereby ensuring the high performance of the finished niobium superconducting cavity.

[0032] Step S410: determine whether the N+1th cavity surface of the niobium alloy is the bottom cavity surface, if not, return to execute step S301; if yes, adjust the height and position of the surface treatment structure 5, and grind the bottom cavity surface of the niobium alloy through the surface treatment structure 5 to obtain a niobium superconducting cavity; it should be pointed out that adjusting the position of the surface treatment structure 5 includes changing the posture of the surface treatment structure 5, for example, when the surface treatment disk processes other cavity surfaces other than the bottom cavity surface, its rotation axis is perpendicular to the bottom cavity surface, thereby realizing processing of other cavity surfaces other than the bottom cavity surface from one side; when the surface treatment disk processes the bottom cavity surface, its rotation axis is parallel to the bottom cavity surface, thereby realizing processing of the bottom cavity surface.

[0033] Based on the above implementation, step S310 specifically includes: Step S311: traverse the processing path of the N-1th cavity surface through the pressure sensor to obtain the pressure distribution matrix P(x, y)={P1, P2, ..., Pm} of the N-1th cavity surface; the movement of the pressure sensor is also realized by the adjustment mechanism 2, which can ensure the accurate positioning of the pressure sensor when moving on different cavity surfaces, thereby ensuring the high accuracy of the collected data, so that each movement can be completed in the optimal path, reducing the measurement error caused by position deviation, and being able to adapt to the complex geometric shape of the niobium alloy cavity surface, thereby simplifying the process and improving efficiency; Step S312: according to the difference between the pressure distribution matrix P(x, y) and the preset standard pressure distribution, a pressure deviation matrix ΔP(x, y) is obtained; wherein the standard pressure distribution is obtained by testing a qualified niobium superconducting cavity before processing, and the standard pressure distribution can be obtained through multiple experiments and statistical analysis to provide a reference for the pressure distribution matrix P(x, y). When performing the difference calculation, the closest coordinates in the standard pressure distribution are found according to the (x, y) coordinates of the pressure distribution matrix, and then the two are compared to obtain ΔP(x, y); the specific measurement, acquisition, normalization and other steps of the above standard pressure distribution are well known to those skilled in the art, and can provide a reference for the pressure distribution matrix P(x, y), and are not limited in this embodiment; Step S313: Calculate ΔP according to the pressure deviation matrix ΔP(x, y), the depth z of the N-1th cavity surface and the first formula. N , the first formula is: ; Where m represents the number and number of pressure sensors collected. Reflects the cavity depth z and pressure The rate of change between p indicates the change in cavity depth caused by a unit pressure change during the machining process; it helps the system determine the sensitivity of the current pressure to the change in surface depth. When the pressure distribution changes, this ratio is combined to calculate the impact of the change in cavity depth, thereby adjusting the machining path to ensure the uniformity and machining quality of the cavity surface. Therefore, the machining path deviation ΔP N The absolute value of the integral deviation reflects the degree to which the overall path deviates from the ideal processing path.

[0034] Through the above steps, judging the machining path deviation by means of pressure measurement can directly reflect the mechanical distribution and material feedback in the actual machining of the cavity surface, and more accurately and efficiently reflect the machining quality and uniformity.

[0035] More specifically, step 320 includes: Step S321: Calculate the descending height ΔH=ΔH0-λ1·ΔP N ; Step S322: Calculate the reduction factor α=α0-λ2·ΔP N ; α<1; It should be noted that the descending height ΔH matches the reduction factor α, ΔP N The larger it is, the smaller the drop height ΔH is, the smaller the change in cavity surface size is, and the larger the corresponding reduction factor α is (the closer it is to 1).

[0036] Among them, λ1 is the height adjustment coefficient, λ2 is the reduction adjustment coefficient, ΔH0 is the initial drop height, and α0 is the initial path factor. The height adjustment coefficient λ1 is the proportional relationship of the processing depth adjustment. It is obtained by testing a certain number of samples, recording the relationship between each pressure deviation and the actual depth adjustment, and then establishing an empirical model or mathematical fitting formula for the adjustment coefficient, thereby obtaining the height adjustment coefficient λ1; similarly, the reduction adjustment coefficient λ2 can be obtained through multiple tests before actual processing, which reflects the relationship between the pressure deviation and the processing path adjustment ratio.

[0037] As a specific implementation, the initial drop height ΔH0 is equal to the processing width of the surface treatment structure 5. The initial path factor α0 is proportional to the depth of the Nth cavity surface. It can be understood that the initial path factor α0 is determined according to the size of the superconducting cavity, and each cavity surface is equivalent to a proportional reduction of the first cavity surface. Therefore, each initial path factor α0 is proportional to the depth of the Nth cavity surface, that is, the greater the depth, the greater the reduction ratio.

[0038] It can be understood that by calculating the drop height ΔH and the reduction factor α, dynamic optimization of the processing path and the depth of the surface treatment structure 5 can be achieved. The calculation of ΔH is directly based on the processing path deviation ΔPN of the N-1th cavity surface, so as to accurately adjust the depth of the surface treatment structure 5 to make it close to the theoretical design value. This adjustment method not only improves the accuracy of the processing path, but also effectively reduces the accumulation of processing errors, ensures the consistency and accuracy of cavity surface processing, avoids excessive or insufficient processing, and thus improves the surface quality of the workpiece. In addition, the calculation of the reduction factor α optimizes the continuity and uniformity of the path by proportionally reducing the processing path of the Nth cavity surface and the N-1th cavity surface processing path, and further improves the stability and accuracy of complex surface processing.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for surface treatment of niobium alloy, characterized in that: include: Step S100: feeding the niobium alloy into a processing box and positioning the niobium alloy; Step S200: adjusting the height of the surface treatment structure, and grinding the Nth cavity surface of the niobium alloy through the surface treatment structure, where N is preset to be 1; Step S300: let N=N+1, adjust the height of the surface treatment structure, and polish the Nth cavity surface of the niobium alloy through the surface treatment structure; Step S400: Repeat step S300 until the Nth cavity surface of the niobium alloy is the bottom cavity surface of the niobium alloy, adjust the height and position of the surface treatment structure, and polish the bottom cavity surface of the niobium alloy through the surface treatment structure to obtain a niobium superconducting cavity; The processing path of the surface treatment structure for the N+1th cavity surface is a proportional reduction of the processing path of the Nth cavity surface.

2. A niobium alloy surface treatment method according to claim 1, characterized in that: Before adjusting the height of the surface treatment structure, it also includes: Step S310: Obtaining the machining path deviation ΔP of the N-1th cavity surface N ; Step S320: According to the processing path deviation ΔP N , calculate the descending height ΔH of the surface treatment structure and calculate the reduction factor α; Adjust the height of the surface treatment structure, including: Step S330: Subtract the descent height ΔH from the preset standard descent height to obtain the target descent height H g ; Step S331: descend according to the target height H g , decreasing the height of the surface treatment structure; The Nth cavity surface of the niobium alloy is polished by a surface treatment structure, including: Step S340: Obtaining the processing path of the Nth cavity surface according to the product of the reduction factor α and the processing path of the N-1th cavity surface; Step S341: grinding the Nth cavity surface of the niobium alloy through a surface treatment structure according to the processing path of the Nth cavity surface.

3. A niobium alloy surface treatment method according to claim 2, characterized in that: Step S310 includes: Step S311: traverse the processing path of the N-1th cavity surface through the pressure sensor to obtain the pressure distribution matrix P(x, y)={P1, P2, ..., Pm} of the N-1th cavity surface; Step S312: Obtaining a pressure deviation matrix ΔP(x, y) according to the difference between the pressure distribution matrix P(x, y) and a preset standard pressure distribution; Step S313: Calculate ΔP according to the pressure deviation matrix ΔP(x, y), the depth z of the N-1th cavity surface and the first formula. N , the first formula is: 。 4. A niobium alloy surface treatment method according to claim 3, characterized in that: Step 320 includes: Step S321: Calculate the descending height ΔH=ΔH0-λ1·ΔP N ; Step S322: Calculate the reduction factor α=α0-λ2·ΔP N ; Among them, λ1 is the height adjustment coefficient, λ2 is the reduction adjustment coefficient, ΔH0 is the initial descent height, and α0 is the initial path factor.

5. A niobium alloy surface treatment method according to claim 4, characterized in that: The initial descending height ΔH0 is equal to the processing width of the surface treatment structure.

6. A niobium alloy surface treatment method according to claim 4, characterized in that: The initial path factor α0 is proportional to the depth of the Nth cavity surface.

7. A niobium alloy surface treatment device, characterized in that: A niobium alloy surface treatment method according to any one of claims 1 to 6, comprising: Processing box; a conveyor belt passing through the processing box and used to feed the niobium alloy into the processing box; A surface treatment structure for surface treatment of niobium alloy; The adjusting structure is used for adjusting the position of the surface treatment structure relative to the niobium alloy.

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