Tin plate hot rolling base material edge wave control system, method, device, equipment and medium

Abstract

The embodiment of the invention discloses a tin plate hot rolling base material edge wave control system, method, device and equipment and a medium. According to the tin plate hot rolling base material edge wave control system, all upper pipes with the number of 1-M are controlled to be opened, half of lower pipes with the number of 1-M are controlled to be opened, the opened lower pipes are not adjacent, and the closed lower pipes are not adjacent; according to the cooling device, a to-be-cooled base material produced by a rolling production line is cooled, meanwhile, two sets of edge shielding components are used for shielding the edge of the to-be-cooled base material, cooling liquid of an upper pipe is prevented from making direct contact with the edge of the to-be-cooled base material, it is guaranteed that the cooling speed of the edge is low, and it is also guaranteed that the cooling speed of the middle is high; and therefore, the temperature difference caused by different cooling speeds of the edge part and the middle part of the to-be-cooled base material after the rolling production line is offline is reduced, the probability of edge waves of the to-be-cooled base material is reduced, the production efficiency of subsequent tin plate finished products is improved, the operation is stable, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tinplate hot-rolled base material, and in particular to a tinplate hot-rolled base material edge wave control system, method, device, equipment and medium. Background Art

[0002] Tinplate hot-rolled base material is the product produced by hot continuous rolling, and tinplate hot-rolled base material is the raw material used to process and produce tinplate finished products.

[0003] Tinplate hot-rolled base material, produced at a hot-rolling coiling temperature below 620°C, commonly suffers from edge rippling, significantly impacting the production efficiency, operational stability, and product quality of subsequent tinplate finished products. Therefore, improving the edge rippling of tinplate hot-rolled base material is an urgent issue. Summary of the Invention

[0004] The embodiments of the present application solve the technical problem in the prior art that edge waves are common in tinplate hot-rolled base materials with a hot rolling coiling process temperature below 620°C by providing a control system, method, device, equipment and medium for edge waves of tinplate hot-rolled base materials, thereby improving the edge wave phenomenon of tinplate hot-rolled base materials and achieving the technical effect of improving the production efficiency, operation stability and product quality of tinplate finished products.

[0005] In a first aspect, the present application provides a tinplate hot-rolled base material edge wave control system, the edge wave control system comprising:

[0006] An upper cooling manifold is arranged on the upper side of the cold area of ​​the base material layer, and the upper cooling manifold includes N mutually independent upper tubes; the N upper tubes are arranged in sequence along the base material transportation direction of the cold area of ​​the base material layer;

[0007] A lower cooling header is arranged on the lower side of the cold area of ​​the base material layer, and the lower cooling header includes N mutually independent lower tubes; the N lower tubes are arranged in sequence along the base material transportation direction of the cold area of ​​the base material layer;

[0008] The N upper tubes correspond to the N lower tubes one by one, the corresponding upper tubes and lower tubes are located in the same vertical plane, and N is a positive integer;

[0009] Two groups of edge shielding components are arranged in the sub-area where the M upper tubes are located, starting from the entrance position of the base material transport direction. The two groups of edge shielding components are respectively arranged on both sides of the sub-area along the base material transport direction, and M is a positive even number less than N.

[0010] In a second aspect, the present application provides a method for controlling edge waves of a tinplate hot-rolled base material, which is applied to the edge wave control system provided in the first aspect, and the method comprises:

[0011] According to the actual width of the base material to be cooled that needs to be cooled in the cold area of ​​the base material layer, the two groups of edge shielding components are controlled to move in the width direction so that the distance of the shadow areas projected on the base material to be cooled in the vertical direction by the two groups of edge shielding components is a preset distance along the width direction; the width direction is perpendicular to the base material transportation direction, the width direction is parallel to the plate surface of the base material to be cooled, and the shadow area includes the edge of the base material to be cooled;

[0012] Controlling all the M upper pipes starting from the inlet position in the transport direction of the base material to be opened to release the coolant to the upper surface of the base material to be cooled except the shaded area;

[0013] Controlling M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction to be opened to release coolant to the lower surface of the base material to be cooled; the M / 2 first lower tubes are not adjacent to each other, and the second lower tubes other than the M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are not adjacent to each other.

[0014] Furthermore, the method further comprises:

[0015] Controlling the opening of a first number of first upper tubes among the upper tubes following the Mth upper tube starting from the inlet position in the direction of transport of the base material, so as to release coolant toward the upper surface of the base material to be cooled; the opened first upper tubes are not adjacent, and an unopened second upper tube is left between every two adjacent opened first upper tubes;

[0016] Controlling a second number of the lower tubes after the Mth lower tube starting from the inlet position in the transport direction of the base material to be opened to release the coolant to the lower surface of the base material to be cooled;

[0017] M, M / 2, the sum of the first number and the second number matches the target opening number, the number of cooling tubes separated by the first position and the second position in the base material transport direction is less than or equal to 1, the first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold, and the second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold.

[0018] Furthermore, the method further comprises:

[0019] In the case where the target opening quantity is updated, the first quantity and the second quantity are adjusted according to the updated target opening quantity, so that the sum of M, M / 2, the adjusted first quantity and the adjusted second quantity matches the updated target opening quantity, and the number of cooling tubes separated by the updated first position and the updated second position in the base material transport direction is less than or equal to 1. The updated first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold, and the updated second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold.

[0020] Furthermore, the ratio of the first quantity to the second quantity is 1:2.

[0021] Furthermore, the preset distance is 100mm-150mm; the value of M includes 10, 12, 14, and 16.

[0022] Furthermore, after the base material to be cooled leaves the cold area of ​​the base material layer to form the base material to be curled, the method further comprises:

[0023] Determining a first curling tension according to a preset reference thickness, a target thickness of the base material to be curled, a coefficient of influence of thickness on tension, and a preset reference head-tail tension; curling a leading region of a first length in the base material to be curled according to the first curling tension, and curling a tail region of a second length in the base material to be curled according to the first curling tension;

[0024] The second curling tension is determined according to the preset reference thickness, the target product thickness of the base material to be curled, the coefficient of influence of thickness on tension, and the preset reference strip tension; and the strip area with a third length in the base material to be curled is curled according to the second curling tension.

[0025] In a third aspect, the present application provides a device for controlling edge waves of a tinplate hot-rolled base material, which is applied to the edge wave control system provided in the first aspect, and the device comprises:

[0026] a position adjustment module, configured to control the two sets of edge shielding components to move in a width direction according to an actual width of the base material to be cooled that needs to be cooled in the cold area of ​​the base material layer, so that the distance between the shadow areas projected on the base material to be cooled in the vertical direction by the two sets of edge shielding components is a preset distance along the width direction; the width direction is perpendicular to the base material transport direction, the width direction is parallel to the plate surface of the base material to be cooled, and the shadow area includes the edge of the base material to be cooled;

[0027] a cooling manifold control module, configured to control all of the M upper pipes, starting from an inlet position in the direction of transport of the base material, to open, so as to release coolant to the upper surface of the base material to be cooled except for the shaded area;

[0028] Controlling M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction to be opened to release coolant to the lower surface of the base material to be cooled; the M / 2 first lower tubes are not adjacent to each other, and the second lower tubes other than the M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are not adjacent to each other.

[0029] In a fourth aspect, the present application provides an electronic device, comprising:

[0030] processor;

[0031] a memory for storing instructions executable by the processor;

[0032] Wherein, the processor is configured to execute to implement a method for controlling edge waves of tinplate hot-rolled base material as provided in the second aspect.

[0033] In the fifth aspect, the present application provides a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by the processor of an electronic device, the electronic device is enabled to implement a method for controlling the edge waves of tinplate hot-rolled base material as provided in the second aspect.

[0034] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0035] The embodiment of the present application controls the upper tubes numbered 1-M to be fully opened, controls the lower tubes numbered 1-M to be half opened, and the opened lower tubes are not adjacent to each other, and the closed lower tubes are not adjacent to each other, so as to achieve cooling of the base material to be cooled produced by the rolling production line, and at the same time uses two sets of edge shielding components to shield the edges of the base material to be cooled to avoid direct contact of the coolant in the upper tube with the edges of the base material to be cooled, thereby ensuring that the cooling rate of the edges is slower and the cooling rate of the middle is faster, thereby reducing the temperature difference caused by the different cooling rates of the edges and the middle of the base material to be cooled after the rolling production line is offline, thereby reducing the probability of edge waves in the base material to be cooled, and improving the production efficiency, operation stability and product quality of subsequent tinplate finished products.

[0036] In the embodiment of the present application, the lower tubes numbered M+1 and thereafter are all controlled to be open, and the upper tubes numbered M+1 and thereafter are controlled to be half open, and the opened upper tubes are not adjacent to each other, and the closed upper tubes are not adjacent to each other. The coolant in the upper tubes on the upper side flows out from both sides of the base material to be cooled after contacting the upper surface of the base material to be cooled. That is to say, the coolant sprayed by the upper tube toward the middle of the base material to be cooled not only cools the middle, but also continues to cool the edges when the coolant flows toward the edges of the base material to be cooled. In this way, the cooling effect of the upper cooling manifold on the upper surface of the base material to be cooled is more uniform, thereby reducing the probability of edge wave phenomenon, and improving the production efficiency, operation stability and product quality of subsequent tinplate finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a schematic diagram of the longitudinal cross-sectional structure along the base material transportation direction provided in an embodiment of the present application.

[0039] Figure 2 Schematic diagram of the top view of the upper cooling manifold along the base material transport direction provided in the embodiment of the present application

[0040] Figure 3 A schematic diagram of a top view of the lower cooling manifold along the base material transport direction provided in an embodiment of the present application;

[0041] Figure 4 Provided in the embodiments of this application Figure 1 The diagram of the structure corresponding to any vertical cross section of the upper tube and the lower tube numbered 1 to M is included;

[0042] Figure 5 A schematic flow chart of a method for controlling edge waves of a tinplate hot-rolled base material provided in an embodiment of the present application;

[0043] Figure 6 A schematic structural diagram of a device for controlling edge waves of a tinplate hot-rolled base material provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0045] Reference numerals:

[0046] A1-upper cooling manifold, B1-lower cooling manifold, C-base material to be cooled, C2-shaded area, C3-shaded area, D2-edge shielding component, D3-edge shielding component. DETAILED DESCRIPTION

[0047] The embodiments of the present application solve the technical problem in the prior art that edge waves are common in tinplate hot-rolled base materials with a hot rolling coiling process temperature below 620°C by providing a control system, method, device, equipment and medium for edge waves of tinplate hot-rolled base materials.

[0048] The technical solution of the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0049] The embodiment of the present application controls the upper tubes numbered 1-M to be fully opened, controls the lower tubes numbered 1-M to be half opened, and the opened lower tubes are not adjacent to each other, and the closed lower tubes are not adjacent to each other, so as to achieve cooling of the base material C to be cooled produced by the rolling production line, and at the same time uses two sets of edge shielding components D2 and D3 to shield the edges of the base material C to be cooled, so as to avoid direct contact of the coolant in the upper tube with the edges of the base material C to be cooled, thereby ensuring that the cooling rate of the edges is slower and the cooling rate of the middle is faster, thereby reducing the temperature difference caused by the different cooling rates of the edges and the middle of the base material C to be cooled after the rolling production line is offline, thereby reducing the probability of edge waves in the base material C to be cooled, and improving the production efficiency, operation stability and product quality of subsequent tinplate finished products.

[0050] In the embodiment of the present application, the lower tubes numbered M+1 and thereafter are all controlled to be open, and the upper tubes numbered M+1 and thereafter are controlled to be half opened, and the opened upper tubes are not adjacent to each other, and the closed upper tubes are not adjacent to each other. The coolant in the upper tubes on the upper side flows out from both sides of the base material C to be cooled after contacting the upper surface of the base material C to be cooled. That is to say, the coolant sprayed by the upper tubes to the middle of the base material C to be cooled not only cools the middle part, but also continues to cool the edges when the coolant flows to the edges of the base material C to be cooled. In this way, the cooling effect of the upper cooling manifold A1 on the upper surface of the base material C to be cooled is more uniform, thereby reducing the probability of edge wave phenomenon, and improving the production efficiency, operation stability and product quality of subsequent tinplate finished products.

[0051] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0052] First, the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0053] Hot-rolled tinplate base material is produced through continuous hot rolling. It is the raw material used to produce finished tinplate products. Hot-rolled tinplate base material produced at hot rolling coiling temperatures below 620°C commonly suffers from edge wave issues, significantly impacting the production efficiency, operational stability, and quality of subsequent tinplate products.

[0054] Combined with the characteristics of hot rolling production process, the main causes of edge waves are analyzed in the following two points:

[0055] First, during the finishing rolling process and the post-rolling cooling process, the cooling rate of the strip edge area is higher than that of the strip middle area, resulting in the difference in phase transformation between the strip edge and the middle.

[0056] Second, under the action of coiling tension, hot plastic deformation occurs in a non-uniform distribution along the width of the strip.

[0057] The related art provides some methods to deal with the wave shape problem.

[0058] For example, the related art provides a method for controlling the wave shape during hot rolling, but this method can only control the wave shape during the hot rolling process, and has little effect on controlling the wave shape of the final product of the tinplate hot-rolled base material.

[0059] The related art also provides a method of using edge heating equipment to improve the temperature difference between the edge and the middle of the base material. However, the edge heating equipment is expensive and consumes a lot of energy, which greatly increases the production cost.

[0060] The related art also provides a method for generating middle waves before the strip is cooled, thereby neutralizing the side waves generated during the cooling process to a certain extent, thereby reducing the degree of the final side waves. However, it is not suitable for use in actual production, mainly because the thickness of the tinplate hot-rolled base material is mainly in the range of 1.8mm-2.2mm. If the strip is deliberately made to produce visible middle waves, it is easy to cause rolling problems. Since the tinplate hot-rolled base material is a ferrite structure, and the martensitic product is a martensitic structure, there are obvious differences in the phase transformation laws of the two during the layer cooling process. Actual production tests have shown that the use of a sparse cooling mode has no obvious effect on the control of the side waves of the tinplate hot-rolled base material.

[0061] The slow cooling process for coils requires extensive slow cooling equipment and multiple handling steps, making it typically applicable only to small, specialized products and unsuitable for mass-produced hot-rolled tinplate. Furthermore, the edge wave of martensitic steel is much more severe than that of hot-rolled tinplate. While slow cooling can only mitigate this edge wave to a certain extent, it is not particularly effective for hot-rolled tinplate, where edge wave is relatively mild.

[0062] In order to solve the above problems, the embodiment of the present application provides a tinplate hot-rolled base material edge wave control system, such as Figures 1 to 4 As shown, the edge wave control system includes an upper cooling manifold A1, a lower cooling manifold B1 and two sets of edge shielding parts. Figure 1 The numbers 1, 2, 3, 4, 5, 6, ..., M, M+1, etc. are the numbers corresponding to the upper tube or lower tube.

[0063] Figure 1 It is a schematic diagram of the longitudinal cross-section structure along the direction of base material transportation. Figure 1 As shown, the upper cooling manifold A1 is arranged on the upper side of the cold area of ​​the base material layer, and the upper cooling manifold A1 includes N independent upper tubes; the N upper tubes are arranged in sequence along the base material transportation direction of the cold area of ​​the base material layer; the base material transportation direction is as shown in FIG. Figure 1 Y direction shown in .

[0064] like Figure 1 As shown, the lower cooling header B1 is arranged at the lower side of the cold area of ​​the base material layer. The lower cooling header B1 includes N independent lower tubes. The N lower tubes are arranged in sequence along the base material transportation direction of the cold area of ​​the base material layer.

[0065] like Figure 1 As shown, N upper tubes correspond to N lower tubes one by one, and the corresponding upper tubes and lower tubes are in the same vertical plane, and N is a positive integer. Figure 1 In the figure, the upper tube numbered 1 in the upper cooling manifold A1 corresponds one-to-one with the lower tube numbered 1 in the lower cooling manifold B1, and the upper and lower tubes numbered 1 are located in the same vertical plane. Similarly, the upper and lower tubes with the same number correspond one-to-one and are located in the same vertical plane.

[0066] Figure 2 The schematic diagram of the top view of the upper cooling manifold A1 along the direction of base material transportation is shown in FIG. Figure 1 The schematic diagram of the structure formed by looking down from above, that is, Figure 1 A schematic diagram of a top view structure formed from the perspective of the Y direction from top to bottom. Figure 2 As shown, two sets of edge shielding components D2 and D3 are arranged in a sub-area where M upper tubes are located, starting from the entrance position in the base material transport direction. The two sets of edge shielding components D2 and D3 are arranged on both sides of the sub-area along the base material transport direction, respectively. M is a positive even number less than N. The values ​​of M include 10, 12, 14, and 16.

[0067] Figure 4 for Figure 1 The diagram of the structure corresponding to any vertical section of the upper tube and lower tube numbered 1 to M is included. Figure 4 As can be seen in the figure, the relative positional relationship between the two sets of edge shielding components D2, D3 and the upper tube and the lower tube. Figure 4 The dotted lines in the upper and lower directions indicate the paths of the coolant flowing out of the upper and lower tubes. Figure 4 The coolant path is formed by multiple nozzles on each upper or lower tube. Figure 4 It can also be seen that due to the obstruction of the two sets of edge shielding components D2 and D3 on both sides of the base material C to be cooled, part of the coolant flowing out of the upper cooling manifold A1 is blocked by the edge shielding components D2 and D3 and will not flow to the edges of the base material C to be cooled.

[0068] Figure 3 The schematic diagram of the top view of the lower cooling header B1 along the base material transport direction is as follows: Figure 1 The schematic diagram of the structure formed by looking down from above, that is, Figure 1 A schematic diagram of a top view structure formed from a top-down perspective perpendicular to the Y direction.

[0069] In order to solve the above problems, the embodiment of the present application provides a method for controlling the edge wave of tinplate hot-rolled base material, which is matched with the above-mentioned tinplate hot-rolled base material edge wave control system. The embodiment of the present application provides a method for controlling the edge wave of tinplate hot-rolled base material, including steps S51 to S53, such as Figure 5 shown.

[0070] Step S51, according to the actual width of the base material C to be cooled in the cold area of ​​the base material layer, the two sets of edge shielding components D2 and D3 are controlled in the width direction (ie Figure 2 and Figure 3 The edge shielding components D2 and D3 are moved in the X direction in the vertical direction so that the shadow areas C2 and C3 projected on the base material C to be cooled in the two groups are respectively a preset distance apart in the width direction; the width direction is perpendicular to the base material transport direction, the width direction is parallel to the plate surface of the base material C to be cooled, and the shadow areas C2 and C3 include the edges of the base material C to be cooled;

[0071] Step S52, controlling all the M upper pipes starting from the inlet position in the base material transport direction to be opened, so as to release the coolant to the upper surface of the base material C to be cooled except the shaded areas C2 and C3;

[0072] Step S53: Control M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction to open, so as to release coolant to the lower surface of the base material C to be cooled; the M / 2 first lower tubes are not adjacent to each other, and the second lower tubes other than the M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are not adjacent to each other.

[0073] A method for controlling edge waves of a tinplate hot-rolled base material provided in an embodiment of the present application can be executed by a cooling manifold controller in a cold area of ​​the base material layer.

[0074] Regarding step S51, according to the actual width of the base material C to be cooled that needs to be cooled in the cold area of ​​the base material layer, the two groups of edge shielding components D2 and D3 are controlled to move in the width direction, so that the shadow areas C2 and C3 of the two groups of edge shielding components D2 and D3 are respectively projected in the vertical direction on the base material C to be cooled, and the distance along the width direction is a preset distance; the width direction is perpendicular to the base material transportation direction, and the width direction is parallel to the plate surface of the base material C to be cooled, and the shadow areas C2 and C3 include the edges of the base material C to be cooled.

[0075] The base material C to be cooled refers to the base material strip after rolling off the hot rolling production line. According to the actual width of the base material C to be cooled, the positions of the two sets of edge shielding components D2 and D3 are determined so that the shadow areas C2 and C3 projected by the two sets of edge shielding components D2 and D3 on the base material C to be cooled in the vertical direction are the preset distances along the width direction. Figure 4 As shown, the shadow areas C2 and C3 of the two sets of edge shielding components D2 and D3 projected on the base material C to be cooled in the vertical direction are Figure 4 Adjust the distance between C2 and C3 to a preset distance of 100 mm to 150 mm.

[0076] Regarding step S52, all the M upper pipes starting from the inlet position in the base material transport direction are controlled to be opened to release coolant to the upper surface of the base material C to be cooled except the shadow areas C2 and C3.

[0077] In step S51, the positions of the two sets of edge shielding components D2 and D3 have been adjusted, and the upper and lower tubes can be controlled to spray coolant. Step S52 and step S53 can be performed simultaneously.

[0078] After the base material C to be cooled comes off the hot rolling production line, it is rolled into a steel coil. The edge of the steel coil dissipates heat faster than the middle of the steel coil, resulting in a temperature difference between the edge and the middle of the steel coil, which easily forms an edge wave phenomenon. After the steel coil is unfolded, it is sent to the cold area of ​​the base material layer for cooling. As can be seen from step S51, the present application sets two groups of edge shielding components D2 and D3 for the sub-areas where the upper tube and the lower tube numbered 1-M are located, so that the coolant from the nozzle in the middle of the upper tube cannot directly contact the edge with the cooled base material, thereby making the cooling rate of the edge slower. However, no shielding component is set in the middle of the base material C to be cooled, so that the coolant from the upper tube can be directly sprayed on the middle of the base material C to be cooled, accelerating the cooling rate of the middle part, so that the temperature of the edge and the middle of the base material C to be cooled can be kept as close as possible. That is to say, the temperature reduction rate of the edge of the base material C to be cooled is reduced, and the temperature reduction rate of the middle of the base material C to be cooled is accelerated, so that the temperature cooling of the edge and the middle is as close as possible, thereby reducing the temperature difference between the edge and the middle, and reducing the possibility of wave-changing phenomenon at the edge.

[0079] Regarding step S53, M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are controlled to be opened to release coolant to the lower surface of the base material C to be cooled; the M / 2 first lower tubes are not adjacent to each other, and the second lower tubes other than the M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are not adjacent to each other.

[0080] Ideally, only the upper tubes 1-M should be opened, while the lower tubes 1-M should be closed. This prevents the edges of the material C from direct contact with the coolant, minimizing the cooling rate at these edges. However, this approach can result in uneven heating of the upper and lower surfaces of the material C, leading to warping and possible penetration under the rollers, potentially causing production accidents. Therefore, the lower tubes 1-M should still be opened, but the number of openings should be minimized.

[0081] Furthermore, if the lower tubes numbered 1-M are opened unevenly or the span of the opened lower tubes is large, it may still cause uneven cooling of the lower surface of the base material C to be cooled, and warping may also occur easily. Therefore, the opening of the lower tubes numbered 1-M should maintain uniformity and the span cannot be too large. On this basis, the embodiment of the present application controls half of the lower tubes numbered 1-M to be in an open state and the other half to be in a closed state. The embodiment of the present application records the half of the lower tubes numbered 1-M in an open state as the first lower tube, and the half of the lower tubes numbered 1-M in a closed state as the second lower tube. In order to meet the requirements of uniformity and that the span cannot be too large, the first lower tubes in the lower tubes numbered 1-M cannot be adjacent, and the second lower tubes cannot be adjacent. In other words, the first lower tube and the second lower tube are spaced apart from each other, and the lower tubes with even numbers can be closed and the lower tubes with odd numbers can be opened, or the lower tubes with odd numbers can be closed and the lower tubes with even numbers can be opened. For example, when M is 10, the lower tubes numbered 1, 3, 5, 7, and 9 can be in the open state, and the lower tubes numbered 2, 4, 6, 8, and 10 can be in the closed state; or the two can be exchanged, that is, the lower tubes numbered 1, 3, 5, 7, and 9 can be in the closed state, and the lower tubes numbered 2, 4, 6, 8, and 10 can be in the open state.

[0082] According to step S52 and step S53, it can be concluded that the opening ratio of the upper tube and the lower tube numbered 1-M is 2:1.

[0083] To sum up, the embodiment of the present application controls the upper tubes numbered 1-M to be fully opened, controls the lower tubes numbered 1-M to be half opened, and the opened lower tubes are not adjacent to each other, and the closed lower tubes are not adjacent to each other, so as to realize cooling of the base material C to be cooled produced by the rolling production line, and at the same time uses two sets of edge shielding components D2 and D3 to shield the edges of the base material C to be cooled, so as to avoid direct contact of the coolant of the upper tube with the edges of the base material C to be cooled, thereby ensuring that the cooling rate of the edges is slower and the cooling rate of the middle is faster, thereby reducing the temperature difference caused by the different cooling rates of the edges and the middle of the base material C to be cooled after the rolling production line is offline, thereby reducing the probability of edge waves in the base material C to be cooled, and improving the production efficiency, operation stability and product quality of subsequent tinplate finished products.

[0084] Described previously Figure 1-Figure 3 The control process of the upper cooling manifold A1 and the lower cooling manifold B1 in the sub-area numbered 1-M is now described. Figure 1-Figure 3 The control process of the upper cooling header A1 and the lower cooling header B1 in the area numbered M+1 and subsequent areas specifically includes:

[0085] A first number of first upper tubes are controlled to be opened among the upper tubes after the Mth upper tube (i.e., upper tubes numbered M+1 and thereafter) starting from the entrance position in the direction of transport of the base material, so as to release coolant onto the upper surface of the base material C to be cooled; the opened first upper tubes are not adjacent to each other, and an unopened second upper tube is left between each two adjacent opened first upper tubes. In other words, if the even-numbered upper tubes after the Mth upper tube are opened, the odd-numbered upper tubes need to be closed; or, if the odd-numbered upper tubes after the Mth upper tube are opened, the even-numbered upper tubes need to be closed.

[0086] The second number of lower tubes after the Mth lower tube (i.e., lower tubes numbered M+1 and thereafter) starting from the entrance position in the base material transport direction are controlled to open to release coolant to the lower surface of the base material C to be cooled.

[0087] The sum of M, M / 2, the first number and the second number matches the target opening number, the number of cooling tubes separated by the first position and the second position in the base material transport direction is less than or equal to 1, the first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold A1, and the second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold B1.

[0088] Among them, the target opening quantity is output by the quantity calculation model of the cooling manifold, and the quantity calculation model is obtained by comprehensive calculation based on the actual temperature of the base material C to be cooled, the target temperature of the final cooling of the cold area of ​​the base material layer, the water temperature of the coolant, and the transportation speed of the base material C to be cooled. For details, please refer to the relevant technology, and the embodiments of this application do not limit this.

[0089] The sum of M, M / 2, the first number and the second number represents the total number of cooling manifolds opened in the cold area of ​​the base material layer. This total number is controlled to be equal to the target opening number so that the base material C to be cooled can be cooled to the target temperature after passing through the cold area of ​​the base material layer.

[0090] Furthermore, the distance between the last opened upper tube position and the last opened lower tube position in the upper cooling manifold A1 along the material transport direction must be small. Specifically, the number of cooling tubes separating the two positions in the material transport direction must be less than or equal to one. This reduces the likelihood of warping of the material C due to a significant difference in the cooling degree between the upper and lower surfaces of the material C being cooled.

[0091] Based on the above control method for the upper tubes and lower tubes numbered M+1 and thereafter, it can be seen that the ratio of the first number to the second number is 1:2.

[0092] Furthermore, the quantity calculation model increases or decreases the number of cooling manifolds according to the difference between the temperature of the strip area where the base material C to be cooled has completed cooling and the target temperature, that is, adjusts and updates the target opening quantity.

[0093] In the case where the target opening quantity is updated, the first quantity and the second quantity are adjusted according to the updated target opening quantity, so that the sum of M, M / 2, the adjusted first quantity and the adjusted second quantity matches the updated target opening quantity, and the number of cooling tubes separated by the updated first position and the updated second position in the base material transport direction is less than or equal to 1. The updated first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold A1, and the updated second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold B1.

[0094] To summarize, in the embodiment of the present application, the lower tubes numbered M+1 and thereafter are all opened, and the upper tubes numbered M+1 and thereafter are half opened, and the opened upper tubes are not adjacent to each other, and the closed upper tubes are not adjacent to each other. The coolant in the upper tubes on the upper side flows out from both sides of the base material C to be cooled after contacting the upper surface of the base material C to be cooled. That is to say, the coolant sprayed by the upper tube to the middle of the base material C to be cooled not only cools the middle part, but also continues to cool the edge part when the coolant flows to the edge part of the base material C to be cooled. In this way, the cooling effect of the upper cooling manifold A1 on the upper surface of the base material C to be cooled is more uniform, thereby reducing the probability of edge wave phenomenon, and improving the production efficiency, operation stability and product quality of subsequent tinplate finished products.

[0095] If all the upper tubes numbered M+1 and thereafter are opened, the coolant flow rate will double. Then the edges will not only be cooled directly by the coolant directly above, but the coolant in the middle will also flow to the edges to continue cooling the edges, resulting in doubling the cooling degree of the edges, causing inconsistent cooling degrees between the edges and the middle, resulting in a large temperature difference between the edges and the middle, and causing the occurrence of edge waves.

[0096] With all lower tubes numbered M+1 and above fully open, the coolant from the lower tubes splashes onto the lower surface of the base material C to be cooled and then falls directly due to gravity, preventing the edges from being cooled twice. Therefore, controlling the ratio of upper tubes numbered M+1 and above to lower tubes at 1:2 further reduces the cooling temperature difference between the edges and the center, thereby reducing the likelihood of edge waves and improving the production efficiency, operational stability, and product quality of subsequent tinplate products.

[0097] After the to-be-cooled base material C leaves the cold area of ​​the base material layer, it becomes a to-be-curled base material. The method further comprises the step of curling the to-be-curled base material.

[0098] The first curling tension is determined based on the preset reference thickness, the target product thickness of the base material to be curled, the coefficient of influence of thickness on tension, and the preset reference head and tail tension; the head area with a first length in the base material to be curled is curled according to the first curling tension, and the tail area with a second length in the base material to be curled is curled according to the first curling tension.

[0099] The second curling tension is determined according to the preset reference thickness, the target product thickness of the base material to be curled, the coefficient of influence of thickness on tension, and the preset reference strip tension; and the strip area with a third length in the base material to be curled is curled according to the second curling tension.

[0100] The first length may be 0-100 meters, the second length may be 0-150 meters, and the third length may be determined according to the actual length of the base material to be curled and the difference between the first length and the second length.

[0101] The first curling tension can be referred to in Formula 1: Th = (H-Hc) x δ + T0.

[0102] The second curling tension can be referred to in Formula 2: Tb = (H - Hc) x δ + T1.

[0103] Where H is the target thickness of the base material to be curled, in mm; Hc is the reference thickness, which is 2.2 mm. The reference thickness is used as a reference for adjusting the curling tension of non-reference thicknesses based on the curling tension of the base material to be curled.

[0104] δ is the coefficient of influence of thickness on tension, unit is MPa / mm, and the value range is 5-7.5;

[0105] T0 is the reference value of the tensile stress in the coiling process of the strip, which is 11 MPa.

[0106] T1 is the reference value of the tensile stress in the coiling process of the strip body, which is 9 MPa.

[0107] By designing the coiling process tensile stress setting, a lower coiling process tensile stress is adopted while ensuring the shape of the steel coil. Under the action of phase change and thermal expansion, the edge length of the strip is lower than the middle length, avoiding the thermal plastic extension deformation of the edge of the strip under the action of coiling tensile stress, further reducing the probability of edge wave phenomenon, and improving the production efficiency, operation stability and product quality of subsequent tinplate finished products.

[0108] Implementation Case 1:

[0109] The embodiment of the present application uses a certain 1580 production line to produce hot-rolled tinplate base material, with product specifications of 2.0mm*870mm, a final rolling temperature of 880℃, and a coiling temperature of 570℃. The maximum number of upper and lower cooling manifolds B1 in the layer cooling rough adjustment zone that can be opened is 112. M is set to 12, and the 1st to 12th upper manifolds in the layer cooling rough adjustment zone block the cooling water within a range of 120mm on both sides of the strip. The lower cooling manifolds B1 in the corresponding area are opened in the order of 1, 3, ... 11; the subsequent upper cooling manifolds A1 in the layer cooling rough adjustment zone are opened in intervals of 14, 16 ... 74, and the lower cooling manifolds B1 are opened in the order of 13, 14, ... 75; the coiling tensile stress is set, and δ is set to 6MPa / mm, then Th is set to 10.2MPa, Tb is set to 12.2MPa, and Tt is set to 10.2MPa.

[0110] After using the above technical measures, the average measured value of the edge wave steepness after the finished product is unrolled is 0.9%, which is significantly reduced compared with the average measured value of 2.6% of the edge wave steepness without using the technology of the embodiment of the present application.

[0111] Implementation Case 2:

[0112] This embodiment of the application uses a certain 1580 production line to produce hot-rolled tinplate base material. The product specifications are 1.8mm*900mm, the final rolling temperature is 880℃, and the coiling temperature is 570℃. The maximum number of upper and lower cooling manifolds B1 in the layer cooling rough adjustment zone is 131. M is set to 16. The 1st to 16th upper manifolds in the layer cooling rough adjustment zone block the cooling water within a range of 140mm on both sides of the strip. The lower cooling manifolds B1 in the corresponding area are opened in the order of 1, 3, 5...15; the subsequent upper cooling manifolds A1 in the layer cooling rough adjustment zone are opened in intervals of 18, 20, 22...86, and the lower cooling manifolds B1 are opened in the order of 17, 18, 19...88; the coiling tensile stress is set, and δ is set to 6MPa / mm, then Th=11.4MPa, Tb=13.4MPa, and Tt=11.4MPa.

[0113] After using the above technical measures, the average measured value of the edge wave steepness after the finished product is unrolled is 0.9%, which is significantly reduced compared with the average measured value of 2.6% of the edge wave steepness without using the technology of the embodiment of the present application.

[0114] The embodiment of the present application eliminates the problem of the strip edge temperature being lower than the middle portion after rolling and before layer cooling by using a method of centrally shielding the cooling water at the edge of the upper cooling manifold A1 in the front section of the base material layer cold zone, and adopts a method of regionally setting the opening ratio of the upper and lower cooling manifolds B1 in the base material layer cold zone, thereby reducing the effect of the cooling water flowing out of the upper manifold from the edge on the temperature difference in the middle of the strip due to the higher cooling speed of the strip edge than that in the middle of the strip during the layer cooling process. At the same time, by designing the tensile stress of the coiling process, the hot plastic extension deformation of the strip edge under the action of the tensile stress of the coiling process is further avoided. Ultimately, the effect of reducing the strip edge length and the edge wave of the finished product during the layer cooling process is achieved.

[0115] Through the embodiment of the present application, in the production of tinplate hot-rolled base material on a certain 1580 hot rolling production line, the edge wave degree of the product is reduced from more than 2.6% to less than 1%, fully meeting the production efficiency, operation stability and product quality control requirements of the downstream production process.

[0116] The technical implementation of the embodiment of the present application is convenient, does not require the configuration of expensive process equipment, and does not require the modification of the layer cooling equipment. It only requires the production of some simple edge shielding components D2 and D3 to block the cooling water at the edges of the layer cooling upper header. It is simple, low-cost and effective.

[0117] Based on the same inventive concept, the present application provides the following embodiments: Figure 6 The device for controlling the edge wave of a tinplate hot-rolled base material shown is applied to the aforementioned edge wave control system, and the device comprises:

[0118] The position adjustment module 61 is used to control the two sets of edge shielding components D2 and D3 to move in the width direction according to the actual width of the base material C to be cooled that needs to be cooled in the cold area of ​​the base material layer, so that the shadow areas C2 and C3 projected by the two sets of edge shielding components D2 and D3 on the base material C to be cooled in the vertical direction are respectively a preset distance along the width direction; the width direction is perpendicular to the base material transportation direction, the width direction is parallel to the plate surface of the base material C to be cooled, and the shadow areas C2 and C3 include the edges of the base material C to be cooled;

[0119] a cooling manifold control module 62 for controlling the opening of all the M upper pipes starting from the inlet position in the direction of transport of the base material, so as to release coolant to the upper surface of the base material C to be cooled except for the shaded areas C2 and C3;

[0120] Controlling M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction to be opened to release coolant to the lower surface of the base material C to be cooled; the M / 2 first lower tubes are not adjacent to each other, and the second lower tubes other than the M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are not adjacent to each other.

[0121] Furthermore, the cooling manifold control module 62 is configured to:

[0122] Controlling the opening of a first number of first upper tubes among the upper tubes following the Mth upper tube starting from the inlet position in the direction of transport of the base material, so as to release coolant toward the upper surface of the base material C to be cooled; the opened first upper tubes are not adjacent, and an unopened second upper tube is left between every two adjacent opened first upper tubes;

[0123] Controlling the second number of the lower tubes after the Mth lower tube starting from the inlet position in the transport direction of the base material to be opened to release the coolant to the lower surface of the base material C to be cooled;

[0124] The sum of M, M / 2, the first number and the second number matches the target opening number, the number of cooling tubes separated by the first position and the second position in the base material transport direction is less than or equal to 1, the first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold A1, and the second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold B1.

[0125] Furthermore, the cooling manifold control module 62 is configured to:

[0126] In the case where the target opening quantity is updated, the first quantity and the second quantity are adjusted according to the updated target opening quantity, so that the sum of M, M / 2, the adjusted first quantity and the adjusted second quantity matches the updated target opening quantity, and the number of cooling tubes separated by the updated first position and the updated second position in the base material transport direction is less than or equal to 1. The updated first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold A1, and the updated second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold B1.

[0127] Furthermore, the ratio of the first number to the second number is 1: 2. The preset distance is 100 mm-150 mm; and the value of M includes 10, 12, 14, and 16.

[0128] Furthermore, after the base material C to be cooled leaves the cold area of ​​the base material layer, the base material to be curled is formed, and the device further includes a curling control module for:

[0129] Determining a first curling tension according to a preset reference thickness, a target thickness of the base material to be curled, a coefficient of influence of thickness on tension, and a preset reference head-tail tension; curling a leading region of a first length in the base material to be curled according to the first curling tension, and curling a tail region of a second length in the base material to be curled according to the first curling tension;

[0130] The second curling tension is determined according to the preset reference thickness, the target product thickness of the base material to be curled, the coefficient of influence of thickness on tension, and the preset reference strip tension; and the strip area with a third length in the base material to be curled is curled according to the second curling tension.

[0131] Based on the same inventive concept, the present application provides the following embodiments: Figure 7 An electronic device as shown includes:

[0132] Processor 71;

[0133] a memory 72 for storing instructions executable by the processor 71;

[0134] The processor 71 is configured to execute and implement a method for controlling edge waves of a tinplate hot-rolled base material as provided above.

[0135] Based on the same inventive concept, an embodiment of the present application provides a non-temporary computer-readable storage medium. When the instructions in the storage medium are executed by the processor 71 of the electronic device, the electronic device is enabled to execute a method for controlling the edge waves of tinplate hot-rolled base material as provided above.

[0136] Since the electronic device described in this embodiment is an electronic device used to implement the information processing method in the embodiment of this application, based on the information processing method described in the embodiment of this application, those skilled in the art will be able to understand the specific implementation of the electronic device of this embodiment and its various variations, so how the electronic device implements the method in the embodiment of this application will not be described in detail here. As long as those skilled in the art implement the electronic device used by the information processing method in the embodiment of this application, it falls within the scope of protection to be provided by this application.

[0137] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0138] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0139] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0140] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0141] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0142] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A tinplate hot-rolled base material edge wave control system, characterized in that: The side wave control system comprises: An upper cooling manifold is arranged on the upper side of the cold area of ​​the base material layer, and the upper cooling manifold includes N mutually independent upper tubes; the N upper tubes are arranged in sequence along the base material transportation direction of the cold area of ​​the base material layer; A lower cooling header is arranged on the lower side of the cold area of ​​the base material layer, and the lower cooling header includes N mutually independent lower tubes; the N lower tubes are arranged in sequence along the base material transportation direction of the cold area of ​​the base material layer; The N upper tubes correspond to the N lower tubes one by one, the corresponding upper tubes and lower tubes are located in the same vertical plane, and N is a positive integer; Two groups of edge shielding components are arranged in the sub-area where the M upper tubes are located, starting from the entrance position of the base material transport direction. The two groups of edge shielding components are respectively arranged on both sides of the sub-area along the base material transport direction, and M is a positive even number less than N.

2. A method for controlling edge waves of hot-rolled tinplate base material, characterized in that: Applied to the edge wave control system according to claim 1, the method comprises: According to the actual width of the base material to be cooled that needs to be cooled in the cold area of ​​the base material layer, the two groups of edge shielding components are controlled to move in the width direction so that the distance of the shadow areas projected on the base material to be cooled in the vertical direction by the two groups of edge shielding components is a preset distance along the width direction; the width direction is perpendicular to the base material transportation direction, the width direction is parallel to the plate surface of the base material to be cooled, and the shadow area includes the edge of the base material to be cooled; Controlling all the M upper pipes starting from the inlet position in the transport direction of the base material to be opened to release the coolant to the upper surface of the base material to be cooled except the shaded area; Controlling M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction to be opened to release coolant to the lower surface of the base material to be cooled; the M / 2 first lower tubes are not adjacent to each other, and the second lower tubes other than the M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are not adjacent to each other.

3. A method for controlling edge waves of hot-rolled tinplate base material according to claim 2, characterized in that: The method further comprises: Controlling the opening of a first number of first upper tubes among the upper tubes following the Mth upper tube starting from the inlet position in the direction of transport of the base material, so as to release coolant toward the upper surface of the base material to be cooled; the opened first upper tubes are not adjacent, and an unopened second upper tube is left between every two adjacent opened first upper tubes; Controlling a second number of the lower tubes after the Mth lower tube starting from the inlet position in the transport direction of the base material to be opened to release the coolant to the lower surface of the base material to be cooled; M, M / 2, the sum of the first number and the second number matches the target opening number, the number of cooling tubes separated by the first position and the second position in the base material transport direction is less than or equal to 1, the first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold, and the second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold.

4. A method for controlling edge waves of tinplate hot-rolled base material according to claim 3, characterized in that: The method further comprises: In the case where the target opening quantity is updated, the first quantity and the second quantity are adjusted according to the updated target opening quantity, so that the sum of M, M / 2, the adjusted first quantity and the adjusted second quantity matches the updated target opening quantity, and the number of cooling tubes separated by the updated first position and the updated second position in the base material transport direction is less than or equal to 1. The updated first position refers to the position of the last opened upper tube distributed along the base material transport direction in the upper cooling manifold, and the updated second position refers to the position of the last opened lower tube distributed along the base material transport direction in the lower cooling manifold.

5. A method for controlling edge waves of tinplate hot-rolled base material according to claim 3 or 4, characterized in that: The ratio of the first quantity to the second quantity is 1:

2.

6. A method for controlling edge waves of hot-rolled tinplate base material according to claim 2, characterized in that: The preset distance is 100mm-150mm; the value of M includes 10, 12, 14, and 16.

7. A method for controlling edge waves of hot-rolled tinplate base material according to claim 2, characterized in that: After the to-be-cooled base material leaves the cold area of ​​the base material layer, the to-be-curled base material is formed, and the method further comprises: Determining a first curling tension according to a preset reference thickness, a target thickness of the base material to be curled, a coefficient of influence of thickness on tension, and a preset reference head-tail tension; curling a leading region of a first length in the base material to be curled according to the first curling tension, and curling a tail region of a second length in the base material to be curled according to the first curling tension; The second curling tension is determined according to the preset reference thickness, the target product thickness of the base material to be curled, the coefficient of influence of thickness on tension, and the preset reference strip tension; and the strip area with a third length in the base material to be curled is curled according to the second curling tension.

8. A device for controlling edge waves of hot-rolled tinplate base material, characterized in that: Applied to the side wave control system according to claim 1, the device comprises: a position adjustment module, configured to control the two sets of edge shielding components to move in a width direction according to an actual width of the base material to be cooled that needs to be cooled in the cold area of ​​the base material layer, so that the distance between the shadow areas projected on the base material to be cooled in the vertical direction by the two sets of edge shielding components is a preset distance along the width direction; the width direction is perpendicular to the base material transport direction, the width direction is parallel to the plate surface of the base material to be cooled, and the shadow area includes the edge of the base material to be cooled; a cooling manifold control module, configured to control all of the M upper pipes, starting from an inlet position in the direction of transport of the base material, to open, so as to release coolant to the upper surface of the base material to be cooled except for the shaded area; Controlling M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction to be opened to release coolant to the lower surface of the base material to be cooled; the M / 2 first lower tubes are not adjacent to each other, and the second lower tubes other than the M / 2 first lower tubes among the M lower tubes starting from the entrance position in the base material transport direction are not adjacent to each other.

9. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; Wherein, the processor is configured to execute to implement a method for controlling edge waves of tinplate hot-rolled base material as described in any one of claims 2 to 7.

10. A non-temporary computer-readable storage medium, which, when the instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to implement a method for controlling edge waves of tinplate hot-rolled base material as described in any one of claims 2 to 7.

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