Steel Plate Defect Treatment Method and Related Equipment

Abstract

The present invention provides a steel plate defect processing method and related equipment, the steel plate defect processing method comprising: obtaining the defect type information of the steel plate; when the defect type of the steel plate is a wave-shaped defect, using a shot blasting process to process the steel plate. The steel plate defect processing method provided by the present invention uses a shot blasting process to process the steel plate when the defect type of the steel plate is a wave-shaped defect, so as to project a large number of high-speed projectiles onto the surface of the steel plate with the wave-shaped defect, so as to form a vibration effect on the steel plate, change the residual stress distribution inside the steel plate, and change the shape of the steel plate, so as to facilitate the control of the shot blasting parameters, adjust the impact effect of the projectile on the steel plate, reduce the residual stress inside the steel plate, and improve the shape of the steel plate, which is beneficial to improving the yield rate of steel plate production, and can shorten the defect processing time of the steel plate, improve the production efficiency of the steel plate, and reduce the operating cost of correcting the wave shape of the steel plate.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and in particular to a steel plate defect processing method and related equipment. Background Art

[0002] In the related art, for steel plates with corrugated defects, straightening process or secondary heat treatment is usually used to correct them. However, in actual production, when the straightening process is used to treat corrugated defects of steel plates, the straightening effect is often poor due to the thin thickness of the steel plates and the large wave height, and repeated straightening is required, which affects the production efficiency of the steel plates; and when the secondary heat treatment is used to treat corrugated defects, the production cost of the steel plates will be greatly increased, which is not conducive to large-scale application in production.

[0003] Therefore, in order to improve the yield rate, it is necessary to provide a more efficient and low-cost method for processing wave defects. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present invention provides a steel plate defect processing method.

[0006] A second aspect of the present invention provides a steel plate defect processing device.

[0007] A third aspect of the present invention provides a storage medium.

[0008] A fourth aspect of the present invention provides an electronic device.

[0009] In view of this, according to a first aspect of an embodiment of the present application, a method for processing steel plate defects is proposed, comprising:

[0010] Obtain defect type information of steel plates;

[0011] When the defect type of the steel plate is a wave-shaped defect, the steel plate is processed by shot blasting.

[0012] In a feasible implementation, the steel plate is treated by shot blasting, including:

[0013] Determine the complexity of the corrugated defects of the steel plate;

[0014] Obtain the unevenness information of the steel plate;

[0015] According to the complexity of the wave-shaped defect and the unevenness information, the shot blasting current is determined, and the shot blasting process is performed using the shot blasting current. The shot blasting current increases with the increase of the unevenness information and the increase of the complexity of the wave-shaped defect.

[0016] In a feasible implementation, a shot peening process is used to process the steel plate, including:

[0017] Determine the complexity of the waviness defects of the steel plate;

[0018] Obtain the flatness information of the steel plate;

[0019] According to the complexity of the waviness defects and the flatness information, determine the shot peening rate, and perform the shot peening process at the shot peening rate. The shot peening rate increases with the increase of the flatness information and increases with the increase of the complexity of the waviness defects.

[0020] In a feasible implementation, a shot peening process is used to process the steel plate, including:

[0021] Determine the complexity of the waviness defects of the steel plate;

[0022] Obtain the flatness information of the steel plate;

[0023] According to the complexity of the waviness defects and the flatness information, determine the shot flow rate, and perform the shot peening process at the shot flow rate. The shot flow rate increases with the increase of the flatness information and increases with the increase of the complexity of the waviness defects.

[0024] In a feasible implementation, the shot flow rate includes a first shot flow rate and a second shot flow rate. According to the complexity of the waviness defects and the flatness information, determine the shot flow rate, and perform the shot peening process at the shot flow rate, including:

[0025] Obtain the thickness information of the steel plate. The steel plate has a first processing side and a second processing side along the thickness direction. During the shot peening process, the first processing side is above the second processing side along the gravity direction. The first shot flow rate is the shot flow rate of the first processing side, and the second shot flow rate is the shot flow rate of the second processing side;

[0026] According to the thickness information, the complexity of the waviness defects and the flatness information, determine the first shot flow rate and the second shot flow rate, and perform the shot peening process at the shot flow rate. The flow rate ratio of the second shot flow rate to the first shot flow rate is greater than 1, and the flow rate ratio increases with the increase of the thickness of the steel plate.

[0027] In a feasible implementation, a shot peening process is used to process the steel plate, including:

[0028] Obtain the thickness information of the steel plate;

[0029] According to the thickness information, determine the passing rate of the steel plate, and perform the shot peening process at the passing rate. The passing rate decreases with the increase of the thickness.

[0030] In a feasible implementation, the steel plate defect treatment method further includes:

[0031] Get the roughness of the steel plate after shot blasting;

[0032] When the unevenness after shot blasting is greater than the unevenness threshold, the steel plate is straightened according to the unevenness threshold.

[0033] According to a second aspect of an embodiment of the present application, a steel plate defect processing device is provided, comprising:

[0034] The first acquisition module is used to acquire defect type information of the steel plate;

[0035] The first processing module is used to process the steel plate using a shot blasting process when the defect type of the steel plate is a wave-shaped defect.

[0036] According to a third aspect of an embodiment of the present application, a storage medium is proposed, the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steel plate defect processing method proposed in any one of the first aspects above.

[0037] According to the fourth aspect of an embodiment of the present application, an electronic device is proposed, which includes at least one processor and at least one memory connected to the processor, wherein the processor is used to call program instructions in the memory to execute a steel plate defect processing method as proposed in any one of the first aspects above.

[0038] Compared with the prior art, the present invention has at least the following beneficial effects: the steel plate defect processing method provided in the embodiment of the present application can understand the defect type of the steel plate by obtaining the defect type information of the steel plate, so as to judge whether the defect existing in the steel plate is a wave-shaped defect. In the case where the defect type of the steel plate is a wave-shaped defect, the steel plate is processed by a shot blasting process, so that a large number of high-speed projectiles are projected onto the surface of the steel plate with the wave-shaped defect, so that the steel plate forms a vibration effect, and when the projectile contacts the steel plate, part of the kinetic energy carried by the projectile will be absorbed by the steel plate, thereby changing the residual stress distribution inside the steel plate. In order to change the shape of the steel plate, it is convenient to control the shot blasting parameters, adjust the impact effect of the projectile on the steel plate, reduce the residual stress inside the steel plate, and improve the shape of the steel plate, which is beneficial to improve the yield rate of steel plate production. The shot blasting process has high execution efficiency, which can shorten the defect processing time of the steel plate and improve the production efficiency of the steel plate. At the same time, the surface strengthening of the steel plate can be achieved based on the shot blasting process, and the surface quality of the steel plate can be improved, so that the wave shape correction process and the surface strengthening process of the steel plate can be combined, which reduces the operating cost of the wave shape correction of the steel plate and is suitable for wide application in the wave shape defect processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] By reading the detailed description of the exemplary embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the exemplary embodiments and are not considered to be a limitation of the present application. Also, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0040] Figure 1 It is a schematic flowchart of a method for processing steel plate defects provided by the present application;

[0041] Figure 2 It is a schematic structural block diagram of a device for processing steel plate defects provided by the present application;

[0042] Figure 3 It is a schematic structural block diagram of an electronic device provided by the present application. Specific Embodiments

[0043] The exemplary embodiments of the present application will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be fully communicated to those skilled in the art.

[0044] As Figure 1 shown, according to the first aspect of the embodiments of the present application, a method for processing steel plate defects is proposed, including:

[0045] Step S101: Obtain defect type information of the steel plate;

[0046] Specifically, after the steel plate is unbundled, the defects of the steel plate can be inspected to determine whether there are defects in the steel plate, and in the case where there are defects in the steel plate, the specific defect types can be determined, so as to facilitate formulating corresponding treatment methods for different types of defects.

[0047] It can be understood that there are various defects that may exist in the steel plate after rolling, such as surface defects, shape defects, curling defects, size defects, etc. The monitoring methods for the foregoing various defects can be, but are not limited to, visual inspection and equipment instrument detection. The foregoing defect type information includes, but is not limited to, the type of defect, the severity of the defect, the position of the steel plate where the defect occurs, etc. Among them, if the severity of the defect can be quantified by relevant parameters of the corresponding defect, the defect type information can also include the measured values of the foregoing relevant parameters. For example, for the wavy defect in the shape defect, whether the wavy defect is serious can be measured by measuring the flatness of the steel plate, and the severity of the wavy defect can be reflected by the numerical value of the flatness.

[0048] It should be noted that the plate shape defects of the steel plate generally include wavy shape, bevel cutting, sickle bend, etc. The steel plate defect processing method provided in the embodiment of the present application is suitable for the wavy shape defects of the steel plate.

[0049] Step S102: When the defect type of the steel plate is a wave-shaped defect, the steel plate is processed by shot blasting.

[0050] Specifically, when the defect type information of the steel plate is obtained, the defect type of the steel plate can be understood, and it can be determined whether the defect of the steel plate is a wave-shaped defect. When the defect type of the steel plate is a wave-shaped defect, the steel plate with the wave-shaped defect is treated with a shot blasting process to eliminate the wave-shaped defect of the steel plate.

[0051] It should be noted that wave-shaped defects are one of the common problems of thin-gauge high-strength steel plates. Its essence is that the residual stress is unevenly distributed inside the strip. When the residual stress exceeds the critical stress of the strip's buckling instability, plate defects such as single-sided waves and middle waves will appear. According to the scope of residual stress, it can be divided into two categories: macroscopic residual stress and microscopic residual stress. The steel plate defect processing method provided in the embodiment of the present application utilizes a shot blasting machine to spray a large number of high-speed and high-energy projectiles onto the surface of the steel plate, so that the steel plate forms a vibration effect. Part of the kinetic energy carried by the projectile is absorbed by the steel plate through the impact between the projectile and the steel plate, thereby changing the distribution of residual stress inside the steel plate, and making the residual stress inside the steel plate lower than the critical stress of the strip's buckling instability, thereby achieving the effect of improving the strip shape. At the same time, the shot blasting process can also improve the surface strength of the steel plate, play a cleaning effect on the surface of the steel plate, and improve the surface quality of the steel plate.

[0052] It is understandable that in the production process of thin-gauge high-strength or ultra-high-strength steel plates, for example, in the production process of steel plates with a thickness of 3-12mm, the steel plates are prone to produce wavy defects due to the interaction of phase change stress and thermal stress due to their low thickness, fast cooling rate and high strength, resulting in a low yield rate. In addition, if wavy defects occur in thin-gauge high-strength or ultra-high-strength steel plates, the unevenness is usually high, sometimes reaching 15-40mm / 1000mm. If the steel plates are treated through a straightening process using a straightening machine, the impact on the residual stress inside the steel plates is low, so that the straightening efficiency is low and the straightening effect is difficult to achieve the expected effect.

[0053] Compared with the straightening process to treat the wavy defects, the steel plate defect treatment method provided in the embodiment of the present application uses the shot blasting process to treat the wavy defects. In the actual treatment process, the high-speed impact of the projectile on the defective steel plate can more efficiently reduce the residual stress inside the steel plate, thereby improving the straightening efficiency of the steel plate, improving the straightening effect of the steel plate, and helping to improve the production efficiency of the steel plate. In addition, the shot blasting process has high execution efficiency and lower execution cost than heat treatment. The shot blasting process can improve the quality and strength of the steel plate surface, and is also convenient for simultaneous implementation in conjunction with the surface treatment process of the steel plate, thereby helping to reduce the cost of the wavy defect treatment operation.

[0054] In summary, the steel plate defect processing method provided in the embodiment of the present application can understand the defect type of the steel plate by obtaining the defect type information of the steel plate, so as to judge whether the defect existing in the steel plate is a wave-shaped defect. In the case where the defect type of the steel plate is a wave-shaped defect, the steel plate is processed by a shot blasting process, so that a large number of high-speed projectiles are projected onto the surface of the steel plate with the wave-shaped defect, so that the steel plate forms a vibration effect, and when the projectile contacts the steel plate, part of the kinetic energy carried by the projectile will be absorbed by the steel plate, thereby changing the residual stress distribution inside the steel plate, so as to change the plate shape of the steel plate. It is then convenient to control the shot blasting parameters, adjust the impact effect of the shot on the steel plate, reduce the residual stress inside the steel plate, and improve the shape of the steel plate, which is beneficial to improving the yield rate of steel plate production. The shot blasting process has high execution efficiency, which can shorten the defect processing time of the steel plate and improve the production efficiency of the steel plate. At the same time, the surface of the steel plate can be strengthened based on the shot blasting process to improve the surface quality of the steel plate, thereby facilitating the combination of the wave shape correction process and the surface strengthening process of the steel plate, reducing the operating cost of the wave shape correction of the steel plate, and is suitable for wide application in the wave shape defect processing.

[0055] Some examples of steel plates being treated using shot blasting include:

[0056] Determine the complexity of the corrugated defects of the steel plate;

[0057] Obtain the unevenness information of the steel plate;

[0058] According to the complexity of the wave-shaped defect and the unevenness information, the shot blasting current is determined, and the shot blasting process is performed using the shot blasting current. The shot blasting current increases with the increase of the unevenness information and the increase of the complexity of the wave-shaped defect.

[0059] Specifically, during the process of treating a steel plate with waviness defects using the shot peening process, the complexity of the waviness defects of the steel plate can be determined. It should be noted that the complexity of the waviness defects is used to reflect the complexity of the waviness distribution of the steel plate. The more complex the waviness defects, the higher the residual stress inside the steel plate. It can be understood that the waviness of the steel plate can be classified into four forms: center wave, single-sided wave, double-sided wave, and composite wave according to the distribution position. The complexity of the waviness defects of the steel plate can be determined according to the specific form of the waviness of the steel plate. For example, among the above four waviness forms, the complexity of the waviness defects of the composite wave is the highest, the complexity of the waviness defects of the center wave is the lowest, and the complexity of the waviness defects of the double-sided wave is greater than that of the single-sided wave. Furthermore, combined with the critical buckling theory, when the thickness or width of the steel plate is the same, the critical stress for the steel plate to appear side wave is less than the critical stress for the center wave to appear. Thus, it is convenient to determine the magnitude and distribution of the residual stress inside the steel plate according to the complexity of the waviness defects, that is, the higher the complexity of the waviness defects of the steel plate, the greater and more complex the distribution of the residual stress inside the steel plate. Correspondingly, when using the shot peening process to treat waviness defects, the required shot peening intensity is also higher. Therefore, the complexity of the waviness defects can be used to provide reference and guidance for the determination of shot peening parameters, and the areas with waviness defects and relatively flat areas of the steel plate can be determined according to the complexity of the waviness defects, so as to determine the shot peening parameters for different areas of the steel plate surface specifically and achieve the regional control of shot peening parameters.

[0060] At the same time, obtain the flatness information of the steel plate, so that the flatness of the steel plate can be determined according to the flatness information. Combining the above, the flatness of the steel plate can more intuitively reflect the severity of the waviness defects of the steel plate. It can be understood that the higher the flatness of the steel plate, the greater the residual stress inside the steel plate. Correspondingly, when using the shot peening process to treat waviness defects, the required shot peening intensity is also higher. Therefore, the flatness information can be used to provide further reference and guidance for the determination of shot peening parameters.

[0061] Furthermore, the shot peening current can be determined according to the complexity of the waviness defects and the flatness information, and the shot peening process can be carried out using the aforementioned shot peening current. Among them, the shot peening current increases with the increase of the flatness information and increases with the increase of the complexity of the waviness defects, that is, by adjusting the shot peening current, the change of the shot peening intensity of the shot peening process is realized. In the actual treatment process, the steel plate and the steel plate surface area with higher complexity of waviness defects and larger flatness are shot peened with a higher shot peening current to improve the elimination effect of the residual stress inside the steel plate, strengthen the improvement effect of the plate shape, and improve the treatment efficiency of the waviness defects. Correspondingly, the steel plate and the steel plate surface area with lower complexity of waviness defects and smaller flatness are shot peened with a lower shot peening current to reduce the execution cost of the shot peening process while ensuring the treatment effect of the waviness defects.

[0062] It can be understood that the aforementioned shot peening treatment of steel plates and steel plate surface areas with high complexity of wave-shaped defects and large unevenness with a higher shot peening current means that when processing two steel plates with wave-shaped defects, the steel plate with high complexity of defects and large unevenness can be shot peened with a higher shot peening current; when processing the same steel plate with wave-shaped defects, the shot peening current can be adjusted in a targeted manner according to the complexity of the wave-shaped defects and parallelism information of different surface areas of the steel plate, so as to use a higher shot peening current for the surface areas of the steel plate with high complexity of wave-shaped defects and large unevenness. The same is true for the aforementioned shot peening treatment of steel plates and steel plate surface areas with low complexity of wave-shaped defects and small unevenness with a lower shot peening current.

[0063] For example, Table 1 shows the range of shot peening parameters that can be used in actual applications when performing shot peening on defective steel plates with wave forms of middle wave, single-side wave, double-side wave and compound wave, and unevenness in the range of [15, 20], (20, 30] and (30, 40], including the range of shot peening current. It can be understood that, combined with the foregoing, the complexity of the wave defects corresponding to the middle wave, single-side wave, double-side wave and compound wave increases in turn.

[0064] It can be seen from Table 1 that the shot peening current increases with the increase of the unevenness information and with the increase of the complexity of the wave-shaped defects. Therefore, in the process of using the shot peening process to treat the wave-shaped defects of the steel plate, the shot peening process can be carried out in a targeted manner according to the actual situation of the wave-shaped defects and the internal residual stress of the steel plate, so as to improve the treatment effect and efficiency of the shot peening process on the wave-shaped defects.

[0065]

[0066]

[0067] Table 1

[0068] It can be understood that when using a shot blasting machine to perform shot blasting on a steel plate, the steel plate is usually fed into the shot blasting machine longitudinally, that is, along the length direction of the steel plate. Correspondingly, the shot blasting machine arranges a plurality of nozzles along the transverse direction of the fed steel plate, that is, along the width direction of the fed steel plate. Combining the foregoing, during the execution of the shot blasting process, the motor current of each nozzle can be adjusted according to the severity of the waviness defect and the flatness information of the surface area of the steel plate to be shot blasted currently, so as to realize the adjustment of the shot blasting current, and perform shot blasting on the surface area of the steel plate with a higher complexity of waviness defect and a larger flatness with a higher shot blasting current to ensure the treatment effect on the waviness defect, and perform shot blasting on the steel plate and the surface area of the steel plate with a lower complexity of waviness defect and a smaller flatness with a lower shot blasting current, so as to save the energy consumption during the shot blasting process while ensuring the treatment effect on the waviness defect and further reduce the treatment cost.

[0069] It should be noted that if there are no obvious waviness defects in a partial surface area of the steel plate and the flatness is less than 15 mm / 1000 mm, it indicates that this area is a flat area. The shot blasting current of this flat area can be determined according to the shot blasting current of the surface area adjacent to this flat area and having waviness defects. The shot blasting current of the flat area can be 0.4 to 0.6 times that of the adjacent defect area.

[0070] In some examples, using the shot blasting process to process the steel plate includes:

[0071] Determining the complexity of the waviness defect of the steel plate;

[0072] Obtaining the flatness information of the steel plate;

[0073] According to the complexity of the waviness defect and the flatness information, determining the shot blasting rate, and performing the shot blasting process at the shot blasting rate. The shot blasting rate increases with the increase of the flatness information and also increases with the increase of the complexity of the waviness defect.

[0074] Specifically, during the process of using the shot blasting process to process the steel plate with waviness defects, the complexity of the waviness defect of the steel plate can be determined to facilitate the analysis of the magnitude and distribution of the residual stress inside the steel plate. The higher the complexity of the waviness defect of the steel plate, the greater and more complex the distribution of the residual stress inside the steel plate. Correspondingly, when using the shot blasting process to treat the waviness defect, the required shot blasting intensity is also higher. Therefore, the complexity of the waviness defect can provide a reference and guidance for the determination of the shot blasting parameters, and the area with waviness defects and the relatively flat area of the steel plate can be determined according to the complexity of the waviness defect, so as to facilitate the targeted determination of the shot blasting parameters for different surface areas of the steel plate and realize the zonal control of the shot blasting parameters.

[0075] Meanwhile, the flatness information of the steel plate is obtained, so that the flatness of the steel plate can be determined according to the flatness information. As described above, the flatness of the steel plate can more intuitively reflect the severity of the waviness defect of the steel plate. It can be understood that the higher the flatness of the steel plate, the greater the residual stress inside the steel plate. Correspondingly, when using the shot peening process to treat the waviness defect, the required shot peening intensity is also higher. Therefore, the flatness information can provide further reference and guidance for the determination of the shot peening parameters.

[0076] Furthermore, according to the complexity of the waviness defect and the flatness information, the shot peening rate can be determined to perform the shot peening process at the aforementioned shot peening rate. Among them, the shot peening rate increases with the increase of the flatness information and also increases with the increase of the complexity of the waviness defect. That is to say, by adjusting the shot peening rate, the change of the shot peening intensity of the shot peening process is realized. In the actual treatment process, the steel plates and the surface areas of the steel plates with higher complexity of the waviness defect and larger flatness are shot peened at a higher shot peening rate to improve the elimination effect of the residual stress inside the steel plate, strengthen the improvement effect of the plate shape, and improve the treatment efficiency of the waviness defect. Correspondingly, the steel plates and the surface areas of the steel plates with lower complexity of the waviness defect and smaller flatness are shot peened at a lower shot peening rate to reduce the execution cost of the shot peening process while ensuring the treatment effect of the waviness defect.

[0077] It can be understood that the aforementioned treatment of the steel plates and the surface areas of the steel plates with higher complexity of the waviness defect and larger flatness at a higher shot peening rate means that when treating two steel plates with waviness defects, for the steel plate with higher complexity of the defect and larger flatness, a higher shot peening rate can be used for shot peening treatment; when treating the same steel plate with waviness defects, according to the complexity of the waviness defect and the flatness information of different surface areas of the steel plate, the shot peening rate can be adjusted accordingly to use a higher shot peening rate for the surface area of the steel plate with higher complexity of the waviness defect and larger flatness for shot peening treatment. The same applies to the aforementioned treatment of the steel plates and the surface areas of the steel plates with lower complexity of the waviness defect and smaller flatness at a lower shot peening rate.

[0078] Exemplarily, the selection ranges of shot peening parameters that can be adopted when performing the shot peening process are also given in Table 1 above. During the execution of the shot peening process, the injection speed of each nozzle can be adjusted according to the severity of the waviness defects and the flatness information of the surface area of the steel plate to be shot peened currently, so as to adjust the shot peening rate, and shot peen the surface area of the steel plate with higher waviness defect complexity and larger flatness at a higher shot peening rate to ensure the treatment effect on the waviness defects, and shot peen the steel plate and the surface area of the steel plate with lower waviness defect complexity and smaller flatness at a lower shot peening rate, so as to ensure the treatment effect on the waviness defects, save the energy consumption in the shot peening process, and further reduce the treatment cost.

[0079] It should be noted that if there are no obvious waviness defects in a partial surface area of the steel plate and the flatness is lower than 15 mm / 1000 mm, it indicates that this area is a flat area, and the shot peening rate of this flat area can be determined according to the shot peening rate of the surface area adjacent to this flat area and having waviness defects. The shot peening rate of the flat area can be 0.4 times to 0.6 times that of the adjacent defect area.

[0080] It can be understood that during the actual treatment process, the aforementioned shot peening current and shot peening rate can be determined according to the waviness defect complexity and flatness information of the steel plate, so as to perform the shot peening process using the aforementioned shot peening current and shot peening rate simultaneously.

[0081] In some examples, treating the steel plate using the shot peening process includes:

[0082] Determining the waviness defect complexity of the steel plate;

[0083] Obtaining the flatness information of the steel plate;

[0084] According to the waviness defect complexity and flatness information, determining the shot flow rate to perform the shot peening process using the shot flow rate. The shot flow rate increases with the increase of the flatness information and also increases with the increase of the waviness defect complexity.

[0085] Specifically, during the process of treating the steel plate with waviness defects using the shot peening process, the waviness defect complexity of the steel plate can be determined to facilitate the analysis of the magnitude and distribution of the residual stress inside the steel plate. The higher the waviness defect complexity of the steel plate, the greater and more complex the distribution of the residual stress inside the steel plate. Correspondingly, when using the shot peening process to treat the waviness defects, the required shot peening intensity is also higher. Thus, the waviness defect complexity can provide a reference and guidance for the determination of shot peening parameters, and the areas with waviness defects and relatively flat areas of the steel plate can be determined according to the waviness defect complexity, so as to facilitate the targeted determination of shot peening parameters for different surface areas of the steel plate and achieve the zonal control of shot peening parameters.

[0086] Meanwhile, the flatness information of the steel plate is obtained, so that the flatness of the steel plate can be determined according to the flatness information. Combining the foregoing, the flatness of the steel plate can more intuitively reflect the severity of the waviness defect of the steel plate. It can be understood that the higher the flatness of the steel plate, the greater the residual stress inside the steel plate. Correspondingly, when using the shot peening process to treat the waviness defect, the required shot peening intensity is also higher. Therefore, the flatness information can provide further reference and guidance for the determination of the shot peening parameters.

[0087] Furthermore, according to the complexity of the waviness defect and the flatness information, the shot flow rate can be determined to perform the shot peening process with the aforementioned shot flow rate. Among them, the shot flow rate increases with the increase of the flatness information and also increases with the increase of the complexity of the waviness defect. That is, by adjusting the shot flow rate, the change of the shot peening intensity of the shot peening process is realized. In the actual treatment process, the steel plates and the surface areas of the steel plates with higher complexity of the waviness defect and larger flatness are shot peened with a higher shot flow rate to improve the elimination effect of the residual stress inside the steel plate, strengthen the improvement effect of the plate shape, and improve the treatment efficiency of the waviness defect. Correspondingly, the steel plates and the surface areas of the steel plates with lower complexity of the waviness defect and smaller flatness are shot peened with a lower shot flow rate to reduce the execution cost of the shot peening process while ensuring the treatment effect of the waviness defect.

[0088] It can be understood that the aforementioned shot peening of the steel plates and the surface areas of the steel plates with higher complexity of the waviness defect and larger flatness means that when treating two steel plates with waviness defects, the steel plate with higher complexity of the defect and larger flatness can be shot peened with a higher shot flow rate; when treating the same steel plate with a waviness defect, the shot flow rate can be adjusted according to the complexity of the waviness defect and the flatness information of different surface areas of the steel plate, so as to shot peen the surface area of the steel plate with higher complexity of the waviness defect and larger flatness with a higher shot flow rate. The aforementioned shot peening of the steel plates and the surface areas of the steel plates with lower complexity of the waviness defect and smaller flatness is the same.

[0089] Exemplarily, the range of shot peening parameter selection that can be adopted when performing the shot peening process is also given in Table 1 above. During the execution of the shot peening process, the injection speed of each nozzle can be adjusted according to the severity of the waviness defect and the flatness information of the surface area of the steel plate to be shot peened currently, so as to adjust the shot flow rate, and perform shot peening on the surface area of the steel plate with a higher complexity of waviness defect and a larger flatness with a higher shot flow rate to ensure the treatment effect on the waviness defect, and perform shot peening on the steel plate and the surface area of the steel plate with a lower complexity of waviness defect and a smaller flatness with a lower shot flow rate, so as to reduce the shot consumption while ensuring the treatment effect on the waviness defect, and further save the treatment cost.

[0090] It should be noted that if there are no obvious waviness defects in a partial surface area of the steel plate and the flatness is less than 15 mm / 1000 mm, it indicates that this area is a flat area. The shot flow rate of this flat area can be determined according to the shot flow rate of the surface area adjacent to this flat area and with waviness defects. The shot flow rate of the flat area can be 0.4 to 0.6 times that of the adjacent defect area.

[0091] It can be understood that during the actual treatment process, one or two or three of the above-mentioned shot peening current, shot peening rate and shot flow rate can be determined according to the complexity of the waviness defect and the flatness information of the steel plate, so as to perform the shot peening process by using one or two or three of the above-mentioned three parameters at the same time. The more parameter items are determined, the more accurately the shot peening intensity can be regulated, and the treatment effect and treatment efficiency on the waviness defect can be improved. And, during the actual treatment process, if the shot peening machine can independently set the above-mentioned three parameters, one or two or three of them can be independently set according to the change trend of the above-mentioned three parameters with the complexity of the waviness defect and the flatness information or directly according to Table 1 to meet the shot peening intensity requirements for waviness defect treatment; if adjusting one of the above-mentioned three parameters of the shot peening machine will cause the other two to change synchronously, then during the parameter determination process, as many parameters as possible should meet the above-mentioned change trend or the parameter range provided by Table 1.

[0092] In some examples, the shot flow rate includes a first shot flow rate and a second shot flow rate. Determining the shot flow rate according to the complexity of the waviness defect and the flatness information and performing the shot peening process by using the shot flow rate includes:

[0093] Obtain the thickness information of the steel plate. The steel plate forms a first treatment side and a second treatment side along the thickness direction. During the shot peening process, the first treatment side is located above the second treatment side along the gravity direction. The first shot flow rate is the shot flow rate of the first treatment side, and the second shot flow rate is the shot flow rate of the second treatment side;

[0094] According to the thickness information, the complexity of the waviness defect, and the flatness information, determine the first shot flow rate and the second shot flow rate, so as to perform the shot peening process using the shot flow rate. The flow rate ratio of the second shot flow rate to the first shot flow rate is greater than 1, and the flow rate ratio increases with the increase of the steel plate thickness.

[0095] Specifically, in the process of determining the shot flow rate according to the complexity of the waviness defect and the flatness information to perform the shot peening process using the shot flow rate, the thickness information of the steel plate can be further obtained, so that the thickness of the steel plate can be determined according to the thickness information. It can be understood that when shot peening the steel plate, nozzles distributed transversely are usually arranged on both sides of the steel plate in the thickness direction to perform shot peening on both sides of the steel plate in the thickness direction. Correspondingly, a first treatment side and a second treatment side are formed along the thickness direction of the steel plate. During the shot peening process, the first treatment side is located above the second treatment side along the gravity direction. The shot flow rate includes a first shot flow rate and a second shot flow rate. The first shot flow rate is the shot flow rate of the first treatment side, and the second shot flow rate is the shot flow rate of the second treatment side. Thus, the first shot flow rate and the second shot flow rate can be further determined according to the thickness information, the complexity of the waviness defect, and the flatness information, so as to perform the shot peening process using the aforementioned shot flow rate, thereby ensuring that both the first treatment side and the second treatment side of the steel plate can be subjected to shot peening, enhancing the effect of reducing the internal residual stress of the steel plate, improving the treatment effect on the waviness defect of the steel plate, and improving the treatment efficiency.

[0096] Among them, setting the flow rate ratio of the second shot flow rate to the first shot flow rate to be greater than 1. It can be understood that in the actual treatment process, the nozzles for injecting shot towards the second treatment side of the shot peening machine are usually arranged below the steel plate along the gravity direction. Therefore, the shot ejected is likely to be affected by gravity during flight and lose part of its kinetic energy. Correspondingly, the nozzles for injecting shot towards the first treatment side of the shot peening machine are usually arranged above the steel plate along the gravity direction. Therefore, the shot ejected is likely to be affected by gravity during flight and cause a slight increase in kinetic energy. Furthermore, by setting the flow rate ratio of the second shot flow rate to the first shot flow rate to be greater than 1, the second shot flow rate can be made greater than the first shot flow rate, thereby compensating for the kinetic energy loss of the shot on the second treatment side, ensuring that the shot peening intensity applied to the first treatment side is highly consistent with the shot peening intensity applied to the second treatment side, avoiding the introduction of new residual stress due to uneven shot peening intensity on the first treatment side and the second treatment side, further improving the treatment effect on the waviness defect, and preventing the phenomenon of excessive difference in the surface quality and surface strength between the two sides of the steel plate due to the difference in shot peening intensity, further ensuring the consistency of the surface quality and surface strength of the steel plate after treatment.

[0097] Moreover, the greater the thickness of the steel plate, the greater its weight. When shot peening the second treatment side, the difficulty of causing the steel plate to vibrate will also increase accordingly. Therefore, by further setting the flow ratio to increase with the increase in the thickness of the steel plate, it can be ensured that the steel plate can generate strong vibrations during shot peening treatment, which is beneficial to eliminating the residual stress inside the steel plate and improving the treatment effect and efficiency of the waviness defects of the steel plate.

[0098] Exemplarily, Table 2 shows the range of flow ratios that can be adopted when performing the shot peening process on defective steel plates with thicknesses in the ranges of [3 mm, 6 mm] and (6 mm, 12 mm] in practical applications. It can be seen from Table 2 that the flow ratio increases with the increase in the thickness of the steel plate. It should be noted that the aforementioned first shot flow rate can be selected according to Table 1, and the second shot flow rate can be determined according to the thickness of the steel plate and is 1.1 to 1.5 times that of the first shot flow rate.

[0099] Steel plate thickness / mm 3 ≤ steel plate thickness ≤ 6 6 < steel plate thickness ≤ 12 Flow ratio 1.1-1.3 1.3-1.5

[0100] Table 2

[0101] In some examples, the shot peening process is used to treat the steel plate, including:

[0102] Obtaining the thickness information of the steel plate;

[0103] According to the thickness information, determining the passing rate of the steel plate, and performing the shot peening process at the passing rate, where the passing rate decreases with the increase in thickness.

[0104] Specifically, during the process of treating the steel plate with the shot peening process, the thickness information of the steel plate can be obtained, so that the thickness of the steel plate can be determined according to the thickness information, and further, according to the thickness information, the passing rate of the steel plate can be determined, and the shot peening process is performed at the passing rate, where the passing rate decreases with the increase in thickness. It can be understood that the aforementioned passing speed is also the feeding speed of the steel plate during shot peening. Therefore, during the process of performing the shot peening process, the steel plate with a higher thickness can be passed through the shot peening machine at a lower passing speed. Correspondingly, the steel plate with a lower thickness can be passed through the shot peening machine at a higher passing rate. Combining the above, when the thickness of the steel plate is relatively large, due to the relatively large weight, it is not easy to generate vibrations during the shot peening process. Therefore, by slowing down the passing rate of the steel plate, the exciting effect of the shot on the steel plate can be improved, and it is beneficial for the steel plate to generate a certain exciting frequency, reduce the residual stress inside the steel plate, and achieve the treatment of the waviness defects of the steel plate. At the same time, for the steel plate with a relatively thin thickness, a higher passing rate can be used for shot peening treatment, which can improve the shot peening treatment efficiency while ensuring the treatment effect of the waviness defects of the steel plate, and is beneficial for reducing the shot consumption and further saving the shot peening cost.

[0105] For example, Table 3 shows the range of throughput rates that can be used in actual applications when performing shot blasting on defective steel plates with thicknesses in the ranges of [3mm, 4mm], (4mm, 6mm], (6mm, 8mm], and (8mm, 12mm]. As can be seen from Table 2, the throughput rate decreases with increasing thickness of the steel plate.

[0106] Steel plate thickness / mm 3 ≤ steel plate thickness ≤ 4 4 < steel plate thickness ≤ 6 6 < steel plate thickness ≤ 8 8 < steel plate thickness ≤ 12 Passing rate m / min 8-10 6-8 4-6 3-5

[0107] Table 3

[0108] It can be understood that, in combination with the foregoing, the shot blasting current and / or shot blasting rate and / or shot flow rate can be determined simultaneously according to the complexity of the wave-shaped defects and the unevenness information, so as to cooperate with the setting of the passing rate and enhance the excitation effect of the shot on the steel plate, thereby reducing the residual stress inside the steel plate, improving the plate shape of the steel plate, eliminating the wave-shaped defects of the steel plate, and improving the processing effect and efficiency of the wave-shaped defects of the steel plate, which is conducive to improving the production efficiency of the steel plate, improving the plate shape quality of the steel plate, and realizing an increase in the yield rate of steel plate production.

[0109] In some examples, the steel plate defect processing method further includes:

[0110] Get the roughness of the steel plate after shot blasting;

[0111] When the unevenness after shot blasting is greater than the unevenness threshold, the steel plate is straightened according to the unevenness threshold.

[0112] Specifically, when the steel plate is treated with shot blasting, the unevenness of the steel plate after shot blasting can be obtained. It can be understood that the aforementioned unevenness after shot blasting is also the unevenness of the steel plate after the shot blasting process, so that according to the unevenness after shot blasting, it can be judged whether the steel plate meets the unevenness requirement after shot blasting. If the unevenness after shot blasting is greater than the unevenness threshold, it means that after shot blasting, the steel plate still has certain wave defects, and then the steel plate can be straightened according to the unevenness threshold, that is, the steel plate after shot blasting is further straightened by using a straightening machine to further eliminate the wave defects of the steel plate.

[0113] It can be understood that after the steel plate has been shot blasted, the residual stress inside the steel plate has been reduced to a certain extent, and the unevenness of the steel plate can be greatly improved compared with before shot blasting. Therefore, when straightening is performed, the straightening difficulty is relatively reduced, and a good straightening effect can be obtained. The number of straightening times required to reduce the unevenness of the steel plate to below the unevenness threshold is reduced, and further effects on the corrugated defects of the steel plate are achieved, which is beneficial to improving the yield rate of steel plate production.

[0114] It can be understood that the flatness threshold can be set in combination with the flatness requirements for the steel plate during the production process, such as 9mm / 1000mm, 10mm / 1000mm, 11mm / 1000mm, etc. Thus, the flatness threshold can reflect the flatness requirements for the steel plate during the production process. Furthermore, based on the flatness threshold, the steel plate is straightened so that the flatness of the steel plate is less than or equal to the flatness threshold.

[0115] It can be understood that the straightening process can be performed by a straightening machine, and the straightening parameters can be set according to the actual conditions such as the thickness of the steel plate, the roll diameter and the number of rolls of the straightening machine. The aforementioned straightening parameters include but are not limited to parameters such as the inlet reduction, the outlet reduction, the roll speed, and the bending roll force.

[0116] Exemplarily, for the purpose of further illustrating the steel plate defect treatment method and its application effect provided by the embodiments of the present application, five actual application scenarios are further described. In the aforementioned five actual application scenarios, the treatment objects are BW300TP steel 1, BW300TP steel 2, NM360 steel, NM400 steel, and HG70CYD steel respectively. It can be understood that the steel grades of BW300TP steel 1 and BW300TP steel 2 are both BW300TP, but there are slight differences in chemical composition and plate shape parameters. The aforementioned steel 1 and steel 2 are only used to distinguish the two treatment objects.

[0117] Among them, the chemical composition of BW300TP steel 1 is: 0.15% C, 1.60% Mn, 1.3% Si, P≤0.010%, S<0.005%, 0.02% Ti, 0.55% Al, and the balance is Fe; the rolling specification is 3×1500mm. After decoiling and transverse cutting, the original plate shape has double-sided wave defects, and the flatness is 40mm / 1000mm. Combining the parameter ranges given in Tables 1 to 3, the shot peening parameters are determined as shown in Table 4. After treatment, the flatness of BW300TP steel 1 is 12 / 1000mm.

[0118] The chemical composition of BW300TP steel 2 is: 0.14% C, 1.60% Mn, 1.2% Si, P≤0.010%, S<0.005%, 0.2% Ti, 0.50% Al, and the balance is Fe; the rolling specification is 4.5×1600mm. After decoiling and transverse cutting, the original plate shape has composite wave defects, and the flatness is 32mm / 1000mm. Combining the parameter ranges given in Tables 1 to 3, the shot peening parameters are determined as shown in Table 4. After treatment, the flatness of BW300TP steel 2 is 10 / 1000mm.

[0119] The chemical composition of NM360 steel is: 0.145% C, 1.80% Mn, 0.12% Si, 0.20% Cr, P≤0.010%, S<0.005%, 0.02% Ti, and the balance is Fe; the thickness specification is 5mm. After flattening and cross-cutting, the original plate shape has a middle wave defect and the unevenness is 25mm / 1000mm. Combined with the parameter range given in Tables 1 to 3, the shot blasting parameters are determined as shown in Table 4. After treatment, the unevenness of NM360 steel is 8 / 1000mm.

[0120] The chemical composition of NM400 steel is: 0.18% C, 1.80% Mn, 0.15% Si, P≤0.010%, S<0.005%, 0.2% Ti, 0.40% Cr, 0.002% B, and the balance is Fe; the rolling specification is 7×1700mm. After flattening and cross-cutting, the original plate shape has a single-side wave defect and the unevenness is 16mm / 1000mm. Combined with the parameter range given in Tables 1 to 3, the shot blasting parameters are determined as shown in Table 4. After treatment, the unevenness of NM400 steel is 8 / 1000mm.

[0121] The chemical composition of HG70CYD steel is: 0.12% C, 1.80% Mn, 0.12% Si, P≤0.010%, S<0.005%, 0.25% Cr, 0.12% Ti, and the balance is Fe; the rolling specification is 12×1800mm. After flattening and cross-cutting, the original plate shape has a middle wave defect and the unevenness is 15mm / 1000mm. Combined with the parameter range given in Tables 1 to 3, the shot blasting parameters are determined as shown in Table 4. After treatment, the unevenness of HG70CYD steel is 5 / 1000mm.

[0122] In summary, the steel plate defect treatment method provided in the embodiment of the present application can achieve good wave-shaped defect treatment effect for defective steel plates with unevenness of 15-40mm / 1000mm in practical applications, so that the unevenness of the treated steel plate is controlled below 10mm / 1000mm, and the success rate can reach more than 90%, which can greatly improve the yield rate of thin-gauge steel plates and high-strength steel. In addition, the surface quality of the treated steel plate is good, the residual stress is low, and it is not easy to cause warping deformation during processing and cutting.

[0123]

[0124] Table 4

[0125] like Figure 2 As shown, according to the second aspect of the embodiment of the present application, a steel plate defect processing device 200 is proposed, comprising:

[0126] The first acquisition module 201 is used to acquire defect type information of the steel plate;

[0127] The first processing module 202 is used to process the steel plate by shot blasting when the defect type of the steel plate is a wave-shaped defect.

[0128] The steel plate defect processing device provided in the embodiment of the present application can understand the defect type of the steel plate by acquiring the defect type information of the steel plate, so as to judge whether the defect existing in the steel plate is a wave-shaped defect. In the case where the defect type of the steel plate is a wave-shaped defect, the steel plate is processed by a shot blasting process, so that a large number of high-speed projectiles are projected onto the surface of the steel plate with the wave-shaped defect, so that the steel plate forms a vibration effect, and when the projectile contacts the steel plate, part of the kinetic energy carried by the projectile will be absorbed by the steel plate, thereby changing the residual stress distribution inside the steel plate, so as to change the plate shape of the steel plate, and further improve the quality of the steel plate. It is convenient to control the shot blasting parameters, adjust the impact effect of the projectile on the steel plate, reduce the residual stress inside the steel plate, and improve the plate shape of the steel plate, which is beneficial to improving the yield rate of steel plate production. The shot blasting process has high execution efficiency, which can shorten the defect processing time of the steel plate and improve the production efficiency of the steel plate. At the same time, the surface of the steel plate can be strengthened based on the shot blasting process to improve the surface quality of the steel plate, thereby facilitating the combination of the wave shape correction process and the surface strengthening process of the steel plate, reducing the operating cost of the wave shape correction of the steel plate, and is suitable for wide application in the treatment of wave shape defects.

[0129] In some feasible examples, the first processing module 202 includes:

[0130] The first determination unit is used to determine the complexity of the wave shape defect of the steel plate;

[0131] A first acquisition unit is used to acquire unevenness information of the steel plate;

[0132] The first processing unit is used to determine the shot blasting current according to the complexity of the wave-shaped defect and the unevenness information, so as to perform the shot blasting process using the shot blasting current, and the shot blasting current increases with the increase of the unevenness information and the increase of the complexity of the wave-shaped defect.

[0133] In some feasible examples, the first processing module 202 includes:

[0134] The second determination unit is used to determine the complexity of the wave shape defect of the steel plate;

[0135] A second acquisition unit is used to acquire unevenness information of the steel plate;

[0136] The second processing unit is used to determine the shot blasting rate according to the complexity of the wave shape defect and the unevenness information, so as to perform the shot blasting process using the shot blasting rate, and the shot blasting rate increases with the increase of the unevenness information and the increase of the complexity of the wave shape defect.

[0137] In some feasible examples, the first processing module 202 includes:

[0138] A third determination unit, configured to determine the complexity of the waviness defect of the steel plate;

[0139] A third acquisition unit, configured to acquire the flatness information of the steel plate;

[0140] A third processing unit, configured to determine the shot flow rate according to the complexity of the waviness defect and the flatness information, so as to perform a shot blasting process using the shot flow rate. The shot flow rate increases as the flatness information increases and also increases as the complexity of the waviness defect increases.

[0141] In some feasible examples, the shot flow rate includes a first shot flow rate and a second shot flow rate, and the third processing unit includes:

[0142] An acquisition subunit, configured to acquire the thickness information of the steel plate. The steel plate has a first processing side and a second processing side along the thickness direction. During the shot blasting process, the first processing side is above the second processing side along the gravity direction. The first shot flow rate is the shot flow rate of the first processing side, and the second shot flow rate is the shot flow rate of the second processing side;

[0143] A processing subunit, configured to determine the first shot flow rate and the second shot flow rate according to the thickness information, the complexity of the waviness defect, and the flatness information, so as to perform a shot blasting process using the shot flow rate. The flow rate ratio of the second shot flow rate to the first shot flow rate is greater than 1, and the flow rate ratio increases as the thickness of the steel plate increases.

[0144] In some feasible examples, the first processing module 202 includes:

[0145] A fourth acquisition unit, configured to acquire the thickness information of the steel plate;

[0146] A fifth acquisition unit, configured to determine the passing rate of the steel plate according to the thickness information, so as to perform a shot blasting process using the passing rate. The passing rate decreases as the thickness increases.

[0147] In some feasible examples, the steel plate defect processing device 200 further includes:

[0148] A second acquisition module, configured to acquire the flatness after shot blasting of the steel plate;

[0149] A second processing module, configured to straighten the steel plate according to the flatness threshold when the flatness after shot blasting is greater than the flatness threshold.

[0150] According to a third aspect of the embodiments of the present application, a storage medium is provided. The storage medium includes a stored program, wherein when the program runs, it controls the device where the storage medium is located to execute the steel plate defect processing method according to any one of the above-mentioned first aspects.

[0151] Since the storage medium provided by the embodiments of the present application is used to implement the steel plate defect processing method proposed in any one of the above first aspects, it has all the beneficial effects of the steel plate defect processing method proposed in any one of the above first aspects, which will not be elaborated here.

[0152] As Figure 3 shown, according to the fourth aspect of the embodiments of the present application, an electronic device 300 is proposed. The electronic device 300 includes at least one processor 301 and at least one memory 302 connected to the processor 301. Among them, the processor 301 is used to call the program instructions in the memory 302 to execute the steel plate defect processing method proposed in any one of the above first aspects.

[0153] Since the electronic device 300 provided by the embodiments of the present application is used to implement the steel plate defect processing method proposed in any one of the above first aspects, it has all the beneficial effects of the steel plate defect processing method proposed in any one of the above first aspects, which will not be elaborated here.

[0154] This application is described with reference to the flowcharts and / or block diagrams of the methods, devices, and electronic devices according to the embodiments of the present application; it should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions; these computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable process management devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable process management devices generate a device for implementing the functions specified in one Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0155] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0156] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical or other form.

[0157] In a typical configuration, an electronic device may include one or more processors (CPUs), a memory, and a bus; the electronic device may also include an input / output interface, a network interface, etc.

[0158] The memory may include non-permanent memory in the form of computer-readable media, random access memory (RAM) and / or non-volatile memory such as read-only memory (ROM) or flash RAM. The memory includes at least one storage chip; the memory is an example of a storage medium.

[0159] Storage media include permanent and non-permanent, removable and non-removable media that can implement information storage by any method or technology; the information can be computer-readable instructions, data structures, program modules, or other data; examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory, or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD), or other optical storage, magnetic cassette tapes, magnetic disk storage, or other magnetic storage devices, or any other non-transmission media that can be used to store information accessible by a computing device; as defined herein, storage media do not include transitory computer-readable media, such as modulated data signals and carrier waves.

[0160] The terms "first", "second", "third", "fourth", etc. (if any) in the description, claims, and drawings of this application are used to distinguish similar objects and do not necessarily describe a specific order or sequence; it should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0161] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that this application is not limited by the described action sequence because, according to this application, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0162] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, commodity or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, commodity or device; without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, commodity or device comprising the element.

[0163] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, apparatus or electronic device; therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects; moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0164] The computer program code for performing the operations of the embodiments of the present application can be written in one or more programming languages or combinations thereof. The programming languages include object-oriented programming languages - such as Common Lisp, Python, C++, Objective-C, Smalltalk, Delphi, Java, Swift, C#, Perl, Ruby, JavaScript and PHP, etc., and also include conventional procedural programming languages - such as Fortran, ALGOL, COBOL, PL / I, BASIC, Pascal and C, etc., and also include any other programming language - such as Lisp, Tcl, Prolog, VisualBasic.NET, SQL and R, etc.; the program code can be executed entirely on the user's computer, partially on the user's computer, executed as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server; in the case of a remote computer, the remote computer can be connected to the user's computer through any type of network - including a local area network (LAN) or a wide area network (WAN) - or can be connected to an external computer (for example, by using an Internet service provider to connect through the Internet).

[0165] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included within the scope of the claims of the present application.

Claims

1. A method for treating steel plate defects, characterized in that, Including: Obtaining defect type information of the steel plate; When the defect type of the steel plate is a wavy defect, using a shot peening process to process the steel plate to eliminate the wavy defect of the steel plate; The processing of the steel plate using the shot peening process includes: Determining the complexity of the wavy defect of the steel plate; Obtaining the flatness information of the steel plate; According to the complexity of the wavy defect and the flatness information, determining the shot peening current to perform the shot peening process with the shot peening current, where the shot peening current increases with the increase of the flatness information and increases with the increase of the complexity of the wavy defect; Wherein, when the wave of the steel plate is a middle wave, the shot peening current is greater than or equal to 16 A and less than or equal to 24 A; when the wave of the steel plate is a single-sided wave, the shot peening current is greater than or equal to 18 A and less than or equal to 27 A; when the wave of the steel plate is a double-sided wave, the shot peening current is greater than or equal to 22 A and less than or equal to 29 A; when the wave of the steel plate is a composite wave, the shot peening current is greater than or equal to 24 A and less than or equal to 30 A.

2. The steel plate defect treatment method according to claim 1, wherein The processing of the steel plate using the shot peening process further includes: Determining the complexity of the wavy defect of the steel plate; Obtaining the flatness information of the steel plate; According to the complexity of the wavy defect and the flatness information, determining the shot peening rate to perform the shot peening process with the shot peening rate, where the shot peening rate increases with the increase of the flatness information and increases with the increase of the complexity of the wavy defect.

3. The steel plate defect treatment method according to claim 1, characterized in that, The processing of the steel plate using the shot peening process further includes: Determining the complexity of the wavy defect of the steel plate; Obtaining the flatness information of the steel plate; According to the complexity of the wavy defect and the flatness information, determining the shot peening flow rate to perform the shot peening process with the shot peening flow rate, where the shot peening flow rate increases with the increase of the flatness information and increases with the increase of the complexity of the wavy defect.

4. The steel plate defect treatment method according to claim 3, characterized in that The shot peening flow rate includes a first shot peening flow rate and a second shot peening flow rate. The determining of the shot peening flow rate according to the complexity of the wavy defect and the flatness information to perform the shot peening process with the shot peening flow rate includes: Obtaining the thickness information of the steel plate. The steel plate has a first processing side and a second processing side along the thickness direction. During the shot peening process, the first processing side is above the second processing side along the gravity direction. The first shot peening flow rate is the shot peening flow rate of the first processing side, and the second shot peening flow rate is the shot peening flow rate of the second processing side; According to the thickness information, the complexity of the wavy defect and the flatness information, determining the first shot peening flow rate and the second shot peening flow rate to perform the shot peening process with the shot peening flow rate. The flow rate ratio of the second shot peening flow rate to the first shot peening flow rate is greater than 1, and the flow rate ratio increases with the increase of the thickness of the steel plate.

5. The steel plate defect treatment method according to claim 1, characterized in that, The processing of the steel plate using the shot peening process includes: Obtaining the thickness information of the steel plate; Determine the passing rate of the steel plate according to the thickness information, and perform the shot peening process at the passing rate, where the passing rate decreases as the thickness increases.

6. The steel plate defect treatment method according to any one of claims 1 to 5, characterized in that, Further comprising: Obtain the unevenness of the steel plate after shot peening; When the unevenness of the steel plate after shot peening is greater than the unevenness threshold, straighten the steel plate according to the unevenness threshold.

7. A steel plate defect processing device, characterized in that, Comprising: A first acquisition module for acquiring defect type information of the steel plate; A first processing module for processing the steel plate by shot peening when the defect type of the steel plate is a wavy defect; The first processing module includes: A first determination unit for determining the complexity of the wavy defect of the steel plate; A first acquisition unit for acquiring the unevenness information of the steel plate; A first processing unit for determining the shot peening current according to the complexity of the wavy defect and the unevenness information, and performing the shot peening process with the shot peening current, where the shot peening current increases as the unevenness information increases and increases as the complexity of the wavy defect increases; Wherein, when the wavy shape of the steel plate is a middle wave, the shot peening current is greater than or equal to 16 A and less than or equal to 24 A; when the wavy shape of the steel plate is a single-sided wave, the shot peening current is greater than or equal to 18 A and less than or equal to 27 A; when the wavy shape of the steel plate is a double-sided wave, the shot peening current is greater than or equal to 22 A and less than or equal to 29 A; when the wavy shape of the steel plate is a composite wave, the shot peening current is greater than or equal to 24 A and less than or equal to 30 A.

8. A storage medium, characterized in that, The storage medium includes a stored program, wherein when the program runs, it controls the device where the storage medium is located to execute the steel plate defect processing method according to any one of claims 1 to 6.

9. An electronic device, characterized in that, The electronic device includes at least one processor and at least one memory connected to the processor, wherein the processor is used to call the program instructions in the memory and execute the steel plate defect processing method according to any one of claims 1 to 6.

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