Method, device and equipment for correcting target width of hot-rolled intermediate billet and medium
By automatically calculating the width correction value of the intermediate blank, the width deviation problem caused by manual correction during hot rolling is solved, the product quality is improved and manual intervention is reduced, and the intelligent development of hot rolling production lines is promoted.
Patent Information
- Application Number
- CN202510527441.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-08-08
AI Technical Summary
In the prior art, the target width correction of the intermediate blank during hot rolling relies on manual determination, resulting in width deviations leading to product quality degradation and lack of automated control.
By obtaining the steel grade, target thickness, order width and actual width of the intermediate blank, using preset relationships and differences calculations, the initial and real-time width correction values are automatically determined, and the optimal target width is finally determined.
It has achieved accurate correction of the width of the intermediate blank, improved product quality, reduced manual intervention, and promoted the development of hot rolled production lines toward intelligence and digitalization.
Smart Images
Figure CN120438409A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of metallurgical technology, and in particular to a method, device, equipment and medium for correcting the target width of a hot-rolled intermediate billet. Background Art
[0002] During the hot rolling process, the accuracy of the target width of the intermediate billet directly affects the quality of the finished strip. Good width accuracy can improve the yield rate of the product and provide better production conditions for subsequent processes and users of hot-rolled products.
[0003] In the prior art, when rolling a steel strip, if there is a deviation between the actual width of the steel strip and the target width, the target width of the next steel strip is appropriately corrected based on the deviation.
[0004] However, the above methods all determine the correction value of the target width manually. Due to differences in the skills of personnel in different positions, the correction value of the target width is sometimes unreasonable, and the finishing outlet width is prone to being overall over-wide or narrow, resulting in product quality degradation. Summary of the Invention
[0005] In view of the above problems, the present application is proposed to provide a method, device, equipment and medium for correcting the target width of the hot-rolled intermediate billet to solve the above problems. The initial target width can be corrected by two correction values, one determined according to the steel type, target thickness and initial target width, and the other determined according to the actual width and order width, so that the corrected initial target width is more reasonable, thereby making the finishing exit width very standard and improving product quality.
[0006] In a first aspect, the present application provides a method for correcting a target width of a hot-rolled intermediate billet, the method comprising:
[0007] Obtain the steel grade, target thickness, order width, initial target width and actual width of the intermediate billet;
[0008] determining an initial width correction value of the initial target width according to the steel grade, the target thickness, and the initial target width;
[0009] determining a real-time width correction value of the initial target width according to the actual width and the order width;
[0010] The optimal target width of the intermediate billet is determined according to the initial target width, the initial width correction value and the real-time width correction value.
[0011] Optionally, determining the real-time width correction value of the initial target width according to the actual width and the order width includes:
[0012] Calculate the average, maximum and minimum values of all actual widths within a preset time period;
[0013] calculating a first difference between the average value and the order width, a second difference between the maximum value and the order width, and a third difference between the minimum value and the order width;
[0014] A real-time width correction value of the initial target width is determined according to the first difference, the second difference, and the third difference.
[0015] Optionally, determining the real-time width correction value of the initial target width according to the first difference, the second difference, and the third difference includes:
[0016] If the first difference is smaller than a preset minimum deviation threshold, and the third difference is larger than the minimum deviation threshold, a fourth difference between the minimum deviation threshold and the first difference is determined as the real-time width correction value of the initial target width;
[0017] If the first difference is less than a preset maximum deviation threshold, and the third difference is less than or equal to the minimum deviation threshold, a fifth difference between the minimum deviation threshold and the third difference is determined as the real-time width correction value of the initial target width;
[0018] If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is less than the maximum deviation threshold, determining a sixth difference between the maximum deviation threshold and the first difference as the real-time width correction value of the initial target width;
[0019] If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is greater than or equal to the maximum deviation threshold, a sixth difference between the maximum deviation threshold and the second difference is determined as the real-time width correction value of the initial target width.
[0020] Optionally, determining the initial width correction value of the initial target width according to the steel grade, the target thickness, and the initial target width includes:
[0021] The initial width correction value of the initial target width is determined according to the steel type, the target thickness and the initial target width, and a preset correspondence between the steel type, the target thickness, the initial target width and the initial width correction value.
[0022] Optionally, before determining the initial width correction value of the initial target width based on the steel grade, the target thickness, the initial target width, and a preset correspondence between the steel grade, the target thickness, the initial target width, and the initial width correction value, the method further includes:
[0023] Obtain the average actual width of intermediate billets of different steel grades when rolled at different target thicknesses and target widths, as well as the order width corresponding to each intermediate billet;
[0024] According to the average actual width and the corresponding order width, a corresponding relationship among the steel type, the target thickness, the initial target width and the initial width correction value is determined.
[0025] Optionally, determining the correspondence between the steel type, the target thickness, the initial target width, and the initial width correction value based on the average actual width and the corresponding order width includes:
[0026] Calculate the seventh difference between each average actual width and the corresponding order width for the same steel grade, the same target thickness and the same target width;
[0027] determining an average of all seventh differences as an initial width correction value of the initial target width;
[0028] The steel type, the target thickness, the target width and the corresponding initial width correction value are recorded in a one-to-one correspondence.
[0029] Optionally, determining the optimal target width of the intermediate billet according to the initial target width, the initial width correction value, and the real-time width correction value includes:
[0030] The sum of the initial target width, the initial width correction value and the real-time width correction value is determined as the optimal target width of the intermediate billet.
[0031] In a second aspect, the present application provides a device for correcting the target width of a hot-rolled intermediate billet, the device comprising:
[0032] An acquisition module is used to obtain the steel type, target thickness, order width, initial target width, and actual width of the intermediate billet;
[0033] A first determining module is configured to determine an initial width correction value of the initial target width according to the steel type, the target thickness, and the initial target width;
[0034] A second determining module is configured to determine a real-time width correction value of the initial target width based on the actual width and the order width;
[0035] The third determination module is used to determine the optimal target width of the intermediate billet according to the initial target width, the initial width correction value and the real-time width correction value.
[0036] In a third aspect, the present application provides an electronic device comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, computer instructions are stored in the memory, and the processor executes the method described in the first aspect by executing the computer instructions.
[0037] In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the method described in the first aspect.
[0038] The technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:
[0039] The embodiments of the present application provide a method, device, equipment and medium for correcting the target width of a hot-rolled intermediate billet, which obtain the steel type, target thickness, order width, initial target width and actual width of the intermediate billet to understand the rolling data of the intermediate billet; determine an initial width correction value of the initial target width based on the steel type, target thickness and initial target width, and determine an initial width correction value based on the set data; determine a real-time width correction value of the initial target width based on the actual width and order width, and determine a real-time width correction value based on the real-time changing data; determine the optimal target width of the intermediate billet based on the initial target width, the initial width correction value and the real-time width correction value, so that the corrected initial target width is more reasonable, thereby making the finishing exit width very standard and improving product quality.
[0040] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:
[0042] Figure 1 This is a flow chart of a method for correcting the target width of a hot-rolled intermediate billet provided in an embodiment of the present application;
[0043] Figure 2 This is a structural block diagram of a device for correcting the target width of a hot-rolled intermediate billet provided in an embodiment of the present application. DETAILED DESCRIPTION
[0044] In order to make the purpose, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.
[0045] Figure 1 This is a flow chart of a method for correcting the target width of a hot-rolled intermediate billet provided in an embodiment of the present application. Figure 1 As shown, the method includes:
[0046] Step S110: Obtain the steel type, target thickness, order width, initial target width, and actual width of the intermediate billet.
[0047] In the embodiment of the present application, the intermediate billet is rolled by a hot rolling production line, which includes a seven-stand four-roller tandem hot rolling mill. The thickness range of the rolled products is: 1.2 to 19 mm; the product width range is: 750 to 1450 mm, and the product types range is: pickled plates, automotive plates, containers, silicon steel, etc. Intermediate billets refer to the billets that have been rolled by the rough rolling mill in the metal processing process, and are usually used as raw materials for the finishing mill. Intermediate billets will be classified according to the type of steel, and different intermediate billets may be different types of steel; the target thickness and initial target width of each intermediate billet will be set before rolling, and the order width is the width requirement specified by the customer in the order, and the actual thickness is the thickness of the intermediate billet when it comes out of the outlet during the rolling process.
[0048] The rolling production line is equipped with advanced detection instruments, including width gauges, position sensors and other advanced detection instruments. The width gauge is used to detect the actual width, and the position sensor is used to detect the position of the intermediate billet, thereby providing a reliable data source for the embodiments of this application.
[0049] Step S120: determining an initial width correction value of the initial target width according to the steel type, target thickness, and initial target width.
[0050] In the embodiment of the present application, the steel type, target thickness and initial target width are parameters set before rolling. An initial width correction value can be determined in advance based on these parameters. The initial width can be initially corrected by the initial width correction value to improve the rolling quality.
[0051] In the embodiment of the present application, in order to prevent the initial width correction value from being too large, a range of the initial width correction value may be set, for example, the range of the initial width correction value is [5, 15].
[0052] Step S130: Determine a real-time width correction value of the initial target width based on the actual width and the order width.
[0053] In the embodiment of the present application, the actual width is generated during the rolling process, so the actual width may change in real time. According to the real-time changing actual width and the standard order width, a real-time width correction value can be determined, that is, the initial target width is corrected according to the change of the actual width, so that the actual width of the intermediate billet is more standard.
[0054] In the embodiment of the present application, in order to prevent the real-time width correction value from being too large, a range of the real-time width correction value may be set. For example, the range of the real-time width correction value is [-5, 105].
[0055] Step S140: Determine the optimal target width of the intermediate billet according to the initial target width, the initial width correction value, and the real-time width correction value.
[0056] In an embodiment of the present application, based on the initial target width, combined with the initial width correction value and the real-time width correction value, the final optimal target width can be determined. Taking the optimal target width as the control target for rolling can make the width of the rolled finished product more standardized and the quality better.
[0057] Optionally, step S120 includes:
[0058] The initial width correction value of the initial target width is determined according to the steel type, target thickness and initial target width, and the preset corresponding relationship between the steel type, target thickness, initial target width and the initial width correction value.
[0059] In an embodiment of the present application, the correspondence between the steel type, target thickness, initial target width and initial width correction value can be calibrated in advance. After obtaining the steel type, target thickness and initial target width of the intermediate billet, the corresponding initial width correction value can be found from the correspondence.
[0060] Optionally, before step S120, the method further includes:
[0061] The first step is to obtain the average actual width of intermediate billets of different steel grades when rolled at different target thicknesses and target widths, as well as the order width corresponding to each intermediate billet.
[0062] In an embodiment of the present application, the average actual width of intermediate billets of different steel grades when rolled at different target thicknesses and different target widths, as well as the order width corresponding to each intermediate billet, are obtained from historical rolling production data.
[0063] The second step is to determine the corresponding relationship between steel type, target thickness, initial target width and initial width correction value based on the average actual width and the corresponding order width.
[0064] In the embodiment of the present application, a correspondence between the steel type, target thickness, initial target width and initial width correction value can be established based on the corresponding average actual width under the steel type, target thickness and target width, and the corresponding order width.
[0065] Optionally, the second step includes:
[0066] Calculate the seventh difference between each average actual width and the corresponding order width under the same steel grade, the same target thickness and the same target width; determine the average value of all the seventh differences as the initial width correction value of the initial target width; record the steel grade, target thickness, target width and the corresponding initial width correction value one by one.
[0067] In the embodiment of the present application, the average actual widths for the same steel grade, target thickness, and target width are selected from the average actual widths for different steel grades, target thicknesses, and target widths. The seventh difference between each average actual width and the corresponding order width for the same steel grade, target thickness, and target width is then calculated to obtain the width deviation. Finally, the average of all the seventh differences is determined as the initial width correction value for the initial target width, i.e., the average of the width deviations is used as the initial width correction value to reduce the width deviation during rolling. Then, the steel grade, target thickness, target width, and corresponding initial width correction value are recorded one by one to obtain a corresponding relationship between the steel grade, target thickness, target width, and corresponding initial width correction value.
[0068] The initial width correction value can be determined by the following formula:
[0069]
[0070] Where Δw org is the initial width correction value, w i ac is the average actual width of the i-th intermediate billet, w i ord is the order width of the i-th intermediate billet, and n is the number of intermediate billets with the same steel grade, target thickness, and target width.
[0071] For example, Table 1 is a statistical table of steel types, average actual widths, and order widths provided in the examples of this application:
[0072] Table 1
[0073] Number of blocks Steel Type Average actual width / mm Order width / mm 1 78 1255.778 1250 2 78 1254.132 1250 3 78 1258.539 1250 … … … … 10 78 1264.185 1250
[0074] According to the data in Table 1 and combined with the above formula, the corresponding initial width correction value can be calculated.
[0075] Optionally, step S130 includes:
[0076] Step S1301: Calculate the average value, maximum value, and minimum value of all actual widths within a preset time period.
[0077] In the embodiment of the present application, the width of the current intermediate billet can be understood by the actual width in a certain time period. Then, a curve of the actual width changing with time can be constructed to find the maximum value w in the curve. ac max and the minimum value w ac min , and then calculate the average value w ac ave .
[0078] For example, the maximum value w ac max is 12693.56mm, the minimum value w ac min is 1251.12, the average value is w ac ave It is 1255.27, and the order width is 1250mm.
[0079] Step S1302: Calculate a first difference between the average value and the order width, a second difference between the maximum value and the order width, and a third difference between the minimum value and the order width.
[0080] In the embodiment of the present application, the order width w ord Equivalent to a standard width, the average, maximum and minimum values are calculated to determine the deviation from the order width, and the average deviation Δw of the actual width of the intermediate billet can be obtained. ace , maximum deviation Δw up and minimum deviation Δw min , that is, the first difference Δw ace , the second difference Δw up and the third difference Δw min .
[0081] Step S1303: Determine a real-time width correction value of the initial target width according to the first difference, the second difference, and the third difference.
[0082] In the embodiment of the present application, the real-time width correction value of the initial target width is determined based on the average deviation, maximum deviation and minimum deviation of the actual width of the intermediate billet, and the deviation can be corrected by the real-time width correction value.
[0083] Optionally, step S1303 includes:
[0084] If the first difference is less than a preset minimum deviation threshold, and the third difference is greater than the minimum deviation threshold, a fourth difference between the minimum deviation threshold and the first difference is determined as the real-time width correction value of the initial target width;
[0085] If the first difference is less than a preset maximum deviation threshold, and the third difference is less than or equal to a minimum deviation threshold, a fifth difference between the minimum deviation threshold and the third difference is determined as the real-time width correction value of the initial target width;
[0086] If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is less than the maximum deviation threshold, determining a sixth difference between the maximum deviation threshold and the first difference as the real-time width correction value of the initial target width;
[0087] If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is greater than or equal to the maximum deviation threshold, a sixth difference between the maximum deviation threshold and the second difference is determined as the real-time width correction value of the initial target width.
[0088] In the embodiment of the present application, if the first difference Δw ave Less than the preset minimum deviation threshold Δw down , and the third difference Δw min Greater than the minimum deviation threshold Δw down , indicating that the actual width is too small, then the minimum deviation threshold Δw down and the first difference Δw ave The fourth difference between the initial target width and the target width is determined as the real-time width correction value Δw ac ; If the first difference Δw ave Less than the preset maximum deviation threshold Δw up , and the third difference Δw max Less than or equal to the minimum deviation threshold Δw down , indicating that the actual width is too small at some point or as a whole, then the minimum deviation threshold Δw down and the third difference Δw min The fifth difference between the initial target width and the target width is determined as the real-time width correction value Δw ac ; If the first difference Δw ave Greater than or equal to the maximum deviation threshold Δw up , and the second difference Δw maxLess than the maximum deviation threshold Δw up , indicating that the actual width is too large, then the maximum deviation threshold Δw up and the first difference Δw ave The sixth difference between the initial target width and the target width is determined as the real-time width correction value Δw ac ; If the first difference Δw ave Greater than or equal to the maximum deviation threshold Δw up , and the second difference Δw max Greater than or equal to the maximum deviation threshold Δw up , indicating that the actual width is obviously too large, then the maximum deviation threshold Δw up and the second difference Δw max The sixth difference between the initial target width and the target width is determined as the real-time width correction value Δw ac .
[0089] In this embodiment of the present application, if the first, second, and third differences are all less than or equal to a preset maximum deviation threshold and greater than or equal to a minimum deviation threshold, indicating that the actual width is within the allowable deviation range, the real-time width correction value is 0, meaning no real-time correction is required. The maximum deviation threshold range is [10, 20], and the minimum deviation threshold range is [4, 8].
[0090] For example, the minimum deviation threshold Δw down The maximum deviation threshold Δw is 7mm. up The calculated real-time width correction value is 2.5mm.
[0091] Optionally, step S140 includes:
[0092] The sum of the initial target width, the initial width correction value and the real-time width correction value is determined as the optimal target width of the intermediate billet.
[0093] In the embodiment of the present application, the sum of the initial target width, the initial width correction value and the real-time width correction value can be directly determined as the optimal target width of the intermediate billet.
[0094] The correction method in the embodiment of the present application uses the relevant rolling production data collected on-site to correct the initial target width of the intermediate billet, so that it can accurately correct the optimal target width, reducing the blocking rate caused by width deviation by about 1%, improving product quality, and at the same time replacing the manual intervention value to realize automatic control and correction of the width of the hot-rolled strip, greatly reducing the proportion of manual intervention, reducing production costs and labor intensity, and pushing the hot rolling production line towards intelligence and digitalization.
[0095] Based on the same application concept, an embodiment of the present invention further provides a device for correcting the target width of a hot-rolled intermediate billet. Figure 2 This is a structural block diagram of a device for correcting the target width of a hot-rolled intermediate billet provided in an embodiment of the present application. Figure 2 As shown, the apparatus 200 includes an acquisition module 201 , a first determination module 202 , a second determination module 203 and a third determination module 204 .
[0096] An acquisition module 201 is used to acquire the steel type, target thickness, order width, initial target width, and actual width of the intermediate billet;
[0097] A first determination module 202 is configured to determine an initial width correction value of the initial target width based on the steel type, target thickness, and initial target width;
[0098] The second determination module 203 is used to determine a real-time width correction value of the initial target width based on the actual width and the order width;
[0099] The third determination module 204 is configured to determine the optimal target width of the intermediate billet according to the initial target width, the initial width correction value, and the real-time width correction value.
[0100] Optionally, the second determining module 203 includes:
[0101] A first calculation module is used to calculate the average value, maximum value and minimum value of all actual widths within a preset time period;
[0102] A second calculation module is used to calculate a first difference between the average value and the order width, a second difference between the maximum value and the order width, and a third difference between the minimum value and the order width;
[0103] The determining unit is configured to determine a real-time width correction value of the initial target width according to the first difference, the second difference, and the third difference.
[0104] Optionally, the determining unit is further configured to:
[0105] If the first difference is less than a preset minimum deviation threshold, and the third difference is greater than the minimum deviation threshold, a fourth difference between the minimum deviation threshold and the first difference is determined as the real-time width correction value of the initial target width;
[0106] If the first difference is less than a preset maximum deviation threshold, and the third difference is less than or equal to a minimum deviation threshold, a fifth difference between the minimum deviation threshold and the third difference is determined as the real-time width correction value of the initial target width;
[0107] If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is less than the maximum deviation threshold, determining a sixth difference between the maximum deviation threshold and the first difference as the real-time width correction value of the initial target width;
[0108] If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is greater than or equal to the maximum deviation threshold, a sixth difference between the maximum deviation threshold and the second difference is determined as the real-time width correction value of the initial target width.
[0109] Optionally, the first determining module 202 is further configured to:
[0110] The initial width correction value of the initial target width is determined according to the steel type, target thickness and initial target width, and the preset corresponding relationship between the steel type, target thickness, initial target width and the initial width correction value.
[0111] Optionally, the apparatus 200 further includes a fourth determining module, configured to:
[0112] Obtain the average actual width of intermediate billets of different steel grades when rolled at different target thicknesses and target widths, as well as the order width corresponding to each intermediate billet;
[0113] According to the average actual width and the corresponding order width, the corresponding relationship between the steel type, target thickness, initial target width and initial width correction value is determined.
[0114] Optionally, the fourth determining module is further configured to:
[0115] Calculate the seventh difference between each average actual width and the corresponding order width for the same steel grade, the same target thickness and the same target width;
[0116] determining an average of all seventh differences as an initial width correction value of the initial target width;
[0117] Record the steel type, target thickness, target width and the corresponding initial width correction value one by one.
[0118] Optionally, the third determining module is further configured to:
[0119] The sum of the initial target width, the initial width correction value and the real-time width correction value is determined as the optimal target width of the intermediate billet.
[0120] It can be understood that the device provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.
[0121] An embodiment of the present invention further provides an electronic device, which may include a processor and a memory, wherein the processor and the memory may be communicatively connected to each other via a bus or other means.
[0122] The processor may be a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application, or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above chips.
[0123] The memory may include a large capacity memory for data or instructions. By way of example and not limitation, the memory may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory may include removable or non-removable (or fixed) media. Where appropriate, the memory may be internal or external to the electronic device. In certain embodiments, the memory may be a non-volatile solid-state memory.
[0124] In one embodiment, the memory may be a read-only memory (ROM). In one embodiment, the ROM may be a mask-programmable ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory, or a combination of two or more of these.
[0125] The processor implements any one of the methods for correcting the target width of the hot-rolled intermediate billet in the above embodiments by reading and executing computer program instructions stored in the memory.
[0126] In one example, the electronic device may further include a communication interface and a bus. The processor, memory, and communication interface are connected via the bus and communicate with each other. The communication interface is primarily used to enable communication between the various modules, devices, units, and / or devices in the embodiments of this application. Where appropriate, the bus may include one or more buses.
[0127] In addition, in conjunction with the target width correction method for a hot-rolled intermediate bar in the above-described embodiments, embodiments of the present invention may provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when executed by a processor, the computer program instructions implement any of the target width correction methods for a hot-rolled intermediate bar in the above-described embodiments.
[0128] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD). The storage medium can also include a combination of the above-mentioned types of memory.
[0129] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:
[0130] The embodiments of the present application provide a method, device, equipment and medium for correcting the target width of a hot-rolled intermediate billet, which obtain the steel type, target thickness, order width, initial target width and actual width of the intermediate billet to understand the rolling data of the intermediate billet; determine an initial width correction value of the initial target width based on the steel type, target thickness and initial target width, and determine an initial width correction value based on the set data; determine a real-time width correction value of the initial target width based on the actual width and order width, and determine a real-time width correction value based on the real-time changing data; determine the optimal target width of the intermediate billet based on the initial target width, the initial width correction value and the real-time width correction value, so that the corrected initial target width is more reasonable, thereby making the finishing exit width very standard and improving product quality.
[0131] In the description provided herein, numerous specific details are described. However, it is understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.
[0132] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Accordingly, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the invention.
[0133] It should be noted that the above embodiments illustrate rather than limit the invention, and that a person skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between brackets should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The present invention may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.
Claims
1. A method for correcting the target width of a hot rolling intermediate billet, characterized in that: The method comprises: Obtain the steel grade, target thickness, order width, initial target width and actual width of the intermediate billet; determining an initial width correction value of the initial target width according to the steel grade, the target thickness, and the initial target width; determining a real-time width correction value of the initial target width according to the actual width and the order width; The optimal target width of the intermediate billet is determined according to the initial target width, the initial width correction value and the real-time width correction value.
2. The method for correcting the target width of the hot rolling intermediate bar according to claim 1, characterized in that: The step of determining the real-time width correction value of the initial target width according to the actual width and the order width includes: Calculate the average, maximum and minimum values of all actual widths within a preset time period; calculating a first difference between the average value and the order width, a second difference between the maximum value and the order width, and a third difference between the minimum value and the order width; A real-time width correction value of the initial target width is determined according to the first difference, the second difference, and the third difference.
3. The method for correcting the target width of the hot rolling intermediate bar according to claim 2, characterized in that: Determining the real-time width correction value of the initial target width according to the first difference, the second difference, and the third difference includes: If the first difference is smaller than a preset minimum deviation threshold, and the third difference is larger than the minimum deviation threshold, a fourth difference between the minimum deviation threshold and the first difference is determined as the real-time width correction value of the initial target width; If the first difference is less than a preset maximum deviation threshold, and the third difference is less than or equal to the minimum deviation threshold, a fifth difference between the minimum deviation threshold and the third difference is determined as the real-time width correction value of the initial target width; If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is less than the maximum deviation threshold, determining a sixth difference between the maximum deviation threshold and the first difference as the real-time width correction value of the initial target width; If the first difference is greater than or equal to the maximum deviation threshold, and the second difference is greater than or equal to the maximum deviation threshold, a sixth difference between the maximum deviation threshold and the second difference is determined as the real-time width correction value of the initial target width.
4. The method for correcting the target width of the hot rolling intermediate bar according to claim 1, characterized in that: The determining of the initial width correction value of the initial target width according to the steel type, the target thickness and the initial target width includes: The initial width correction value of the initial target width is determined according to the steel type, the target thickness and the initial target width, and a preset correspondence between the steel type, the target thickness, the initial target width and the initial width correction value.
5. The method for correcting the target width of the hot rolling intermediate bar according to claim 4, characterized in that: Before determining the initial width correction value of the initial target width based on the steel grade, the target thickness, the initial target width, and the preset corresponding relationship among the steel grade, the target thickness, the initial target width, and the initial width correction value, the method further includes: Obtain the average actual width of intermediate billets of different steel grades when rolled at different target thicknesses and target widths, as well as the order width corresponding to each intermediate billet; According to the average actual width and the corresponding order width, a corresponding relationship among the steel type, the target thickness, the initial target width and the initial width correction value is determined.
6. The method for correcting the target width of the hot rolling intermediate bar according to claim 5, characterized in that: The determining, based on the average actual width and the corresponding order width, the corresponding relationship between the steel type, the target thickness, the initial target width, and the initial width correction value comprises: Calculate the seventh difference between each average actual width and the corresponding order width for the same steel grade, the same target thickness and the same target width; determining an average of all seventh differences as an initial width correction value of the initial target width; The steel type, the target thickness, the target width and the corresponding initial width correction value are recorded in a one-to-one correspondence.
7. The method for correcting the target width of the hot rolling intermediate bar according to claim 1, characterized in that: Determining the optimal target width of the intermediate billet according to the initial target width, the initial width correction value, and the real-time width correction value includes: The sum of the initial target width, the initial width correction value and the real-time width correction value is determined as the optimal target width of the intermediate billet.
8. A device for correcting the target width of a hot-rolled intermediate billet, characterized in that: The device comprises: An acquisition module is used to obtain the steel type, target thickness, order width, initial target width, and actual width of the intermediate billet; A first determining module is configured to determine an initial width correction value of the initial target width according to the steel type, the target thickness, and the initial target width; A second determining module is configured to determine a real-time width correction value of the initial target width based on the actual width and the order width; The third determination module is used to determine the optimal target width of the intermediate billet according to the initial target width, the initial width correction value and the real-time width correction value.
9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method according to any one of claims 1 to 7 by executing the computer instructions.
10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the method according to any one of claims 1 to 7.