Part surface treatment method

Abstract

The invention relates to the technical field of metal material metallographic inspection, and provides a part surface treatment method which is applied to a to-be-detected surface, needing to be subjected to metallographic inspection, of an on-site part. The grinding equipment comprises a straight grinding machine, a grinding head and a polishing head, the grinding head and the polishing head are installed on the head of the straight grinding machine, the grinding head is sleeved with a first abrasive paper ring or a second abrasive paper ring, and the roughness of the first abrasive paper ring is larger than that of the second abrasive paper ring. The part surface treatment method comprises the following steps that a grinding head is installed on a straight grinding machine, and a first abrasive paper ring is arranged in a sleeving mode to roughly grind a to-be-detected surface; a grinding head is installed on a straight grinding machine, and a second abrasive paper ring sleeves the straight grinding machine to finely grind the to-be-detected surface; polishing paste is smeared on the to-be-detected face, and a polishing head is installed on a straight grinding machine to polish the to-be-detected face; and cleaning and blow-drying the to-be-detected surface. And effective metallographic inspection can be carried out on small-size components, and the limitation of a traditional method in field application is overcome.

Description

Technical Field

[0001] The invention relates to the technical field of metallographic inspection of metal materials, and in particular to a component surface treatment method. Background Art

[0002] As an important material analysis method, on-site metallographic inspection technology has been widely used in many industrial fields such as power plants, chemical industry, aviation, shipbuilding, etc. The core of this technology is to conduct metallographic inspection directly on the workpiece, through grinding, polishing and etching steps, to show the microstructure of the material, and then obtain its material information.

[0003] With the development of domestic industry, especially the nuclear industry, on-site metallographic inspection faces new challenges. The use of small-sized parts is increasing, and these parts also need metallographic inspection due to their special importance. However, the applicability of traditional angle grinder grinding and polishing systems for large parts is not enough to meet the inspection needs of complex small-sized parts. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a component surface treatment method so as to facilitate the surface treatment of small-sized components on site for metallographic inspection.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention proposes a component surface treatment method, which is applied to the surface of a component to be tested that needs to be subjected to metallographic inspection on site. The component surface treatment method uses a movable grinding device for grinding. The grinding device includes a straight grinder and a grinding head and a polishing head installed on the head of the straight grinder. The grinding head is provided with a first sandpaper ring or a second sandpaper ring. The roughness of the first sandpaper ring is greater than that of the second sandpaper ring. The component surface treatment method includes the following steps:

[0006] The grinding head is installed on the straight grinder and the first sandpaper ring is set to perform rough grinding on the surface to be inspected;

[0007] The grinding head is installed on the straight grinder and the second sandpaper ring is set to perform fine grinding on the surface to be inspected;

[0008] Apply polishing paste on the surface to be tested, and install the polishing head on the straight grinder to polish the surface to be tested;

[0009] The surface to be tested is cleaned and blown dry.

[0010] In a specific embodiment of the present invention, the straight grinder is provided with a light source facing the head thereof.

[0011] In a specific embodiment of the present invention, the diameter and length of the polishing head are greater than the diameter and length of the grinding head.

[0012] In a specific embodiment of the present invention, the angle between the axis of the straight grinder and the surface to be detected in the rough grinding step is greater than the angle between the axis of the straight grinder and the surface to be detected in the fine grinding step.

[0013] In a specific embodiment of the present invention, the rotation speed of the straight grinder in the rough grinding step is smaller than the rotation speed of the straight grinder in the fine grinding step.

[0014] In a specific embodiment of the present invention, the rotation speed of the straight grinder in the polishing step is smaller than the rotation speed of the straight grinder in the rough grinding step.

[0015] In a specific embodiment of the present invention, the grinding direction in the rough grinding step is perpendicular to the grinding direction in the fine grinding step.

[0016] In a specific embodiment of the present invention, in the polishing step, the moving direction of the polishing head is opposite to the polishing direction of the polishing head on the surface to be inspected.

[0017] In a specific embodiment of the present invention, the step of cleaning and drying the surface to be inspected includes:

[0018] The surface to be tested is rinsed from top to bottom with alcohol, and the surface to be tested is wiped with cotton.

[0019] In a specific embodiment of the present invention, after the step of washing the surface to be tested from top to bottom with alcohol and wiping the surface to be tested with cotton, the method comprises:

[0020] Gradually reduce the flushing amount of the alcohol until it stops, and use a hair dryer or a hot air gun to blow dry the liquid along the flushing direction of the alcohol while reducing the flushing amount of the alcohol.

[0021] The present invention proposes a method for surface treatment of parts. The above scheme introduces tools such as a straight grinder and a small-sized cylindrical side grinding and polishing head, which can effectively perform metallographic inspection on small-sized parts, overcoming the limitations of traditional methods in field applications. For precise and sensitive parts, the new method can significantly reduce the loss of raw materials during the grinding and polishing process, protect the structural integrity of the parts, and thus extend their service life. On-site metallographic testing can save time and cost, and is of great significance for projects that require rapid feedback, especially in emergency repairs or quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the position of the surface to be inspected of small-sized parts;

[0024] Figure 2 This is a schematic diagram of the position of another small-sized component to be inspected;

[0025] Figure 3 It is a structural schematic diagram of a grinding device in a specific embodiment of the present invention;

[0026] Figure 4 It is a processing process diagram of a component surface treatment method in a specific embodiment of the present invention.

[0027] Figure 5 The present invention is a flowchart of a method for surface treatment of components in a specific embodiment of the present invention.

[0028] Explanation of reference numerals: 1. surface to be inspected; 10. straight grinder; 11. light source; 20. grinding head; 30. polishing head. DETAILED DESCRIPTION

[0029] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0031] As an important material analysis method, on-site metallographic inspection technology has been widely used in many industrial fields such as power plants, chemicals, aviation, shipbuilding, etc. This method has significant advantages when facing the inspection of large components, especially when it cannot be disassembled or destroyed. On-site metallographic inspection method can effectively ensure the integrity of the workpiece, making it an important tool in physical and chemical inspection.

[0032] During the on-site metallographic inspection process, the quality of grinding and polishing directly affects the authenticity and effectiveness of the metallographic information obtained in the end. In order to improve efficiency and effect, the engineering has optimized the grinding and polishing links of metallographic inspection, and adopted the systematic method of "angle grinder-grinding wheel-sandpaper-polishing wheel". This method not only improves the operational efficiency of metallographic inspection, but also ensures that the sample surface reaches the required smoothness, thus laying a good foundation for subsequent microscopic observation.

[0033] However, with the development of domestic industry, especially the nuclear industry, the use of small-sized components is increasing, such as Figure 1 , 2 These small-sized parts are often complex in shape, and space limitations make traditional methods prone to damage during operation or unable to achieve the desired inspection results. In addition, the complexity of the on-site industrial environment also increases the requirements for metallographic inspection, requiring a more flexible and convenient grinding and polishing method to meet these challenges.

[0034] With the changes in market demand and the continuous advancement of technology, the grinding and polishing methods for metallographic inspection of small-sized parts are imminent. The development of metallographic inspection technology suitable for small-sized parts will provide a more comprehensive and efficient solution for on-site inspection to cope with complex industrial environments and more stringent quality requirements.

[0035] To achieve the above-mentioned purpose and other related purposes, the present invention proposes a component surface treatment method, which is applied to the surface 1 of the component to be inspected that needs metallographic inspection on site. The component surface treatment method uses a movable grinding device for grinding. The movable grinding device, especially the design equipped with a straight grinder 10, can quickly grind and polish the surface 1 of the component to be inspected, thereby improving work efficiency. Figure 3 As shown, the grinding device includes a straight grinder 10 and a grinding head 20 and a polishing head 30 installed on the head of the straight grinder 10. The main shaft diameter of the straight grinder 10 is between 3-4 mm, so that it can be adapted to commonly used grinding heads on the market, increasing the flexibility and usability of the device. The no-load speed of the straight grinder 10 is between 3000-10000 rpm.

[0036] The grinding head 20 can be made of high-quality emery cloth + carbonization, and the polishing head 30 can be made of fine-particle wool. The shape of the polishing head 30 is cylindrical. Selecting high-quality emery cloth and carbonization material as the grinding head 20, combined with the polishing head 30 made of fine-particle wool, can effectively improve the finish of the processed surface and reduce surface defects.

[0037] The grinding head 20 is provided with a first sandpaper ring or a second sandpaper ring, and the roughness of the first sandpaper ring is greater than that of the second sandpaper ring. The first sandpaper ring is 300-grit sandpaper, and the second sandpaper ring is 600-grit sandpaper. By combining sandpaper rings of different roughness, multi-level grinding can be achieved. First, the first sandpaper ring with a larger roughness is used to remove more materials or surface defects, and then the fine second sandpaper ring is used for fine grinding to ensure a smooth surface.

[0038] like Figure 3 As shown, the straight grinder 10 is provided with a light source 11 facing the head thereof. The light source 11 is an LED lighting lamp. The light source 11 can provide bright and uniform lighting, helping the operator to view the grinding area more clearly and reduce operating errors.

[0039] In a specific embodiment of the present invention, the diameter and length of the polishing head 30 are greater than the diameter and length of the grinding head 20. Specifically, the grinding head 20 has a diameter of 12 mm and a length of 15 mm, and the polishing head 30 has a diameter of 14 mm and a length of 20 mm. A larger polishing head 30 can cover a larger working area, thereby achieving a more uniform polishing effect, which helps to improve the smoothness and brightness of the final surface. At the same time, the larger polishing head 30 has a slower linear speed at the same rotation speed. Due to the slow linear speed, the impact force during the polishing process is reduced, which can reduce surface scratches and damage, especially when fine surface treatment is performed, the effect is better.

[0040] Before the formal grinding and polishing, the sandpaper head, polishing head 30 and polishing paste need to be prepared in advance. The sandpaper head consists of a grinding head 20 and a sandpaper ring. The sandpaper ring is mounted on the grinding head 20. The diameter of the grinding head 20 is adjusted to ensure that the sandpaper ring fits the grinding head 20 tightly. During the grinding and polishing process, the sandpaper head and polishing head 30 are installed and fixed on the straight grinder 10 in sequence according to the process, so that the accessories rotate coaxially with the main shaft of the straight grinder 10 at the same speed.

[0041] like Figure 4 , 5 As shown, the component surface treatment method comprises the following steps:

[0042] S1. Install the grinding head 20 on the straight grinder 10 and set the first sandpaper ring to perform rough grinding on the surface to be tested 1. Use the side (i.e., cylindrical side) of the sandpaper head for grinding. The sandpaper head contacts the surface to be tested 1 and moves smoothly until the oxide scale on the surface of the surface to be tested 1 disappears, revealing the luster of the base metal. The regularity of the grinding scratches can be achieved by gradually removing the oxide scale and revealing the luster of the base metal. This can significantly improve the appearance quality of the metal surface and provide better adhesion for subsequent processing or coating. During the grinding process, attention should be paid to the grinding depth at all times, and the grinding pressure should be applied as small as possible. Small grinding pressure and side grinding can better control the movement of the tool and reduce safety accidents caused by accidental slippage or excessive pressure.

[0043] S2, install the grinding head 20 on the straight grinder 10 and set the second sandpaper ring to perform fine grinding on the surface to be tested 1. After uniform and regular metallic luster and grinding scratches are visible under the LED light source 11 of the straight grinder 10, remove the first sandpaper ring, replace the second sandpaper ring and start fine grinding. Grind until new regular fine grinding scratches replace the rough grinding scratches. The grinding process ends here. By replacing the second sandpaper ring for fine grinding, the scratches left after rough grinding can be gradually replaced with uniform fine grinding scratches, thereby improving the surface finish of the workpiece.

[0044] In a specific embodiment of the present invention, the angle between the axis of the straight grinder 10 and the surface to be inspected 1 in the rough grinding step is greater than the angle between the axis of the straight grinder 10 and the surface to be inspected 1 in the fine grinding step. The larger angle in the rough grinding stage enables the grinding force to effectively peel off the oxide layer and larger defects when acting on the surface to be grinded, and quickly remove surface impurities. In fine grinding, reducing the angle helps to reduce cutting force and ensure a smoother grinding process, thereby reducing damage to the material surface and avoiding excessive removal.

[0045] In the rough grinding step, the angle between the axis of the straight grinder 10 and the surface to be tested 1 is between 15°-60°, and in the fine grinding step, the angle between the axis of the straight grinder 10 and the surface to be tested 1 is between 15°-30°.

[0046] In a specific embodiment of the present invention, the grinding direction in the rough grinding step is perpendicular to the grinding direction in the fine grinding step. The grinding direction in the rough grinding stage is perpendicular to the fine grinding, which can more effectively remove scratches and defects on the surface, so that the scratches generated during the rough grinding can be better removed during the fine grinding. After the rough grinding, changing to fine grinding in another grinding direction can make the surface treatment more delicate, ensuring that the final product has good contact performance and visual effects.

[0047] In a specific embodiment of the present invention, the rotation speed of the straight grinder 10 in the rough grinding step is less than the rotation speed of the straight grinder 10 in the fine grinding step. Specifically, the rotation speed of the straight grinder 10 in the rough grinding step is 5000 rpm, and the rotation speed of the straight grinder 10 in the fine grinding step is 8000 rpm. The lower rotation speed reduces the generation of friction and heat, which is particularly important for the rough grinding stage, and can effectively remove more material without heating the workpiece, thereby avoiding deformation or damage to the material. The grinding process with a lower rotation speed can reduce the rough grinding marks, create a better foundation for the subsequent fine grinding step, and thus make the final surface quality higher.

[0048] S3, applying polishing paste on the surface to be tested 1, installing the polishing head 30 on the straight grinder 10 to polish the surface to be tested 1. The polishing paste can be diamond grinding paste, and the particles are selected as W2.5. Diamond grinding paste can effectively remove scratches on the surface of the material due to its extremely high hardness and wear resistance, and is suitable for polishing metals and other hard materials.

[0049] The polishing head 30 contacts the polishing point and moves smoothly. During the polishing process, as the polishing scratches gradually disappear and the surface 1 to be inspected gradually becomes brighter, the speed of the straight grinder 10 is slowly increased to ensure the finish quality of the surface 1 to be inspected. When all the polishing scratches disappear and the local metal has a mirror finish, the polishing process is completed.

[0050] In a specific embodiment of the present invention, the rotation speed of the straight grinder 10 in the polishing step is less than the rotation speed of the straight grinder 10 in the rough grinding step. Specifically, the rotation speed of the straight grinder 10 in the polishing step is 3000 rpm. In the polishing stage, a lower rotation speed helps to achieve a more detailed treatment of the surface, thereby improving the finish of the workpiece and achieving a higher gloss effect. The low rotation speed can reduce new scratches caused by high-speed friction and ensure that the treated surface is not damaged during the polishing process. The low rotation speed means that the pressure of the grinding head in contact with the workpiece is relatively small, which is suitable for fine polishing to retain more substrate and avoid excessive removal of material.

[0051] In a specific embodiment of the present invention, the moving direction of the polishing head 30 in the polishing step is opposite to the polishing direction of the polishing head 30 on the surface to be inspected 1. The reverse movement of the polishing head 30 can effectively prevent the polishing paste from being bounced off by the airflow generated by the rotational friction, ensure that the polishing paste is evenly covered on the surface to be polished, and give full play to its grinding and polishing performance. Uniform polishing paste coating can ensure that the entire workpiece surface is treated to the same extent during the polishing process, so that the results are consistent and the effect difference caused by the lack of polishing paste in a part is avoided.

[0052] S4, cleaning and drying the surface 1 to be inspected.

[0053] In the cleaning step, use alcohol to rinse the surface 1 to be tested from top to bottom, and wipe the surface 1 to be tested with cotton. Use alcohol and cotton to wipe the polishing points to clean the metal chips and polishing paste residues. When cleaning, pay attention to ensure that the alcohol is rinsed from the upper side in the natural direction and flows to the natural lower side. During the cleaning process, use cotton to slowly wipe the polishing point stains. Flushing with alcohol can effectively dissolve and remove metal chips, polishing paste residues and other dirt on the surface 1 to be tested to ensure a clean surface. The cleaned surface does not have any residue, which helps the accuracy of subsequent metallographic inspection and improves the reliability of the test results.

[0054] In the drying step, gradually reduce the amount of alcohol flushing until it stops, and use a hair dryer or a hot air gun to blow dry the liquid in the direction of alcohol flushing while the amount of alcohol flushing is reduced. After cleaning, keep flushing with alcohol, use a hair dryer or a hot air gun to blow dry the liquid in the direction of alcohol flushing, and slowly stop the alcohol flushing during the drying process to prevent liquid residue from appearing on the polishing surface, ensuring that the entire detection point is clean and flat, and serving for subsequent metallographic inspection. By controlling the amount of alcohol flushing and coordinating with air drying, it is possible to effectively prevent watermarks or spots from being left on the polishing surface, ensuring the perfect state of the surface. Stop flushing while drying to avoid re-contamination of the detection point and ensure that the surface 1 to be tested is dry and tidy.

[0055] In summary, the introduction of tools such as the straight grinder 10 and the small-sized cylindrical side grinding and polishing head in the above scheme can effectively perform metallographic inspection on small-sized components, overcoming the limitations of traditional methods in field applications. For precision and sensitive components, the new method can significantly reduce the loss of raw materials during the grinding and polishing process, protect the structural integrity of the components, and thus extend their service life. On-site implementation of metallographic testing can save time and cost, and is of great significance for projects that require rapid feedback, especially in emergency repairs or quality control. Due to the reduction in material loss and the improvement in detection efficiency, the overall economic benefits are significantly improved, which has a positive driving effect on the production and operation of the enterprise. The flexibility of this method enables it to adapt to components of different shapes and sizes, and can be widely used in metallographic testing in various manufacturing or repair industries.

[0056] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with this technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention. Efficiently realize the connection between the high voltage of the motor and the high voltage of the controller, small size, oil-resistant sealing design, reliable sealing of the controller cavity and the motor cavity, and oil-cooling design of the fixture to effectively reduce the temperature, achieve greater flow and increase product life.

[0057] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of the specific details or with other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0058] References throughout this specification to "one embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention, and not necessarily in all embodiments. Thus, various appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout this specification do not necessarily refer to the same embodiment. In addition, the particular features, structures, or characteristics of any specific embodiment of the invention may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the invention described and illustrated herein may be possible in light of the teachings herein and are to be considered part of the spirit and scope of the invention.

[0059] It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or more integrated manner, or even removed because they are inoperable in certain circumstances or provided because they may be useful depending on the application.

[0060] In addition, unless otherwise explicitly indicated, any marking arrows in the drawings should be regarded as exemplary only and not limiting. In addition, unless otherwise indicated, the term "or" used herein is generally intended to mean "and / or". In the case where the term is not clear because it is anticipated that the ability to separate or combine is provided, the combination of components or steps will also be regarded as indicated.

[0061] As used in the description herein and throughout the claims that follow, "a", "an", and "the" include plural references unless otherwise indicated. Likewise, as used in the description herein and throughout the claims that follow, the meaning of "in" includes "in" and "on" unless otherwise indicated.

[0062] The above description of the illustrated embodiments of the present invention (including the contents described in the Abstract) is not intended to be an exhaustive list or to limit the present invention to the precise form disclosed herein. Although specific embodiments of the present invention and examples of the present invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention as will be recognized and appreciated by those skilled in the art. As noted, these modifications may be made to the present invention in accordance with the above description of the embodiments described in the present invention, and these modifications will be within the spirit and scope of the present invention.

[0063] Systems and methods have been generally described herein as details that aid in understanding the present invention. In addition, various specific details have been given to provide an overall understanding of embodiments of the present invention. However, those skilled in the relevant art will recognize that embodiments of the present invention may be practiced without one or more of the specific details, or may be practiced using other devices, systems, accessories, methods, components, materials, parts, etc. In other cases, well-known structures, materials, and / or operations are not specifically shown or described in detail to avoid confusion with various aspects of embodiments of the present invention.

[0064] Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some cases, some features of the invention will be employed without the corresponding use of other features without departing from the scope and spirit of the proposed invention. Thus, many modifications may be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terms used in the claims below and / or the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the invention will be determined solely by the appended claims.

Claims

1. A component surface treatment method, characterized in that: Applied to the surface to be tested of on-site parts that need to be subjected to metallographic inspection, the part surface treatment method uses a movable grinding device for grinding, the grinding device includes a straight grinder and a grinding head and a polishing head installed on the head of the straight grinder, the grinding head is sleeved with a first sandpaper ring or a second sandpaper ring, the roughness of the first sandpaper ring is greater than that of the second sandpaper ring, and the part surface treatment method includes the following steps: The grinding head is installed on the straight grinder and the first sandpaper ring is set to perform rough grinding on the surface to be inspected; The grinding head is installed on the straight grinder and the second sandpaper ring is set to perform fine grinding on the surface to be inspected; Apply polishing paste on the surface to be tested, and install the polishing head on the straight grinder to polish the surface to be tested; The surface to be tested is cleaned and blown dry.

2. The component surface treatment method according to claim 1, characterized in that: The straight grinder is provided with a light source facing the head thereof.

3. The component surface treatment method according to claim 1, characterized in that: The diameter and length of the polishing head are greater than the diameter and length of the grinding head.

4. The component surface treatment method according to claim 1, characterized in that: The angle between the axis of the straight grinder and the surface to be detected in the rough grinding step is greater than the angle between the axis of the straight grinder and the surface to be detected in the fine grinding step.

5. The component surface treatment method according to claim 1, characterized in that: The rotation speed of the straight grinder in the rough grinding step is lower than the rotation speed of the straight grinder in the fine grinding step.

6. The component surface treatment method according to claim 5, characterized in that: The rotation speed of the straight grinder in the polishing step is lower than the rotation speed of the straight grinder in the rough grinding step.

7. The component surface treatment method according to claim 1, characterized in that: The grinding direction in the rough grinding step is perpendicular to the grinding direction in the fine grinding step.

8. The component surface treatment method according to claim 1, characterized in that: In the polishing step, the moving direction of the polishing head is opposite to the polishing direction of the polishing head on the surface to be inspected.

9. The component surface treatment method according to claim 1, characterized in that: The step of cleaning and drying the surface to be inspected includes: The surface to be tested is rinsed from top to bottom with alcohol, and the surface to be tested is wiped with cotton.

10. The component surface treatment method according to claim 9, characterized in that: After the steps of washing the surface to be tested from top to bottom with alcohol and wiping the surface to be tested with cotton, the method includes: Gradually reduce the flushing amount of the alcohol until it stops, and use a hair dryer or a hot air gun to blow dry the liquid along the flushing direction of the alcohol while reducing the flushing amount of the alcohol.

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