A rough rolling camber control method considering incoming material inclination

Abstract

The application discloses a kind of considering incoming material inclination rough rolling camber control method, belong to plate strip rolling hot rough rolling stage slab camber control technical field, the method includes: acquisition rough rolling camber related process parameters;Based on the rough rolling camber related process parameters, calculate current slab first pass camber control reference value and current slab considering incoming material inclination first pass automatic control camber control amount;Based on current slab first pass camber control reference value and current slab considering incoming material inclination first pass automatic control camber control amount, calculate current slab first pass camber actual control amount;Current slab first pass camber actual control amount is issued to rough rolling basic automation control system, realizes considering incoming material inclination rough rolling slab camber first pass automatic control.The application can realize camber first pass accurate control, improve slab quality, reduce worker labor intensity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of slab camber control in the rough rolling stage of hot strip rolling, and particularly relates to a rough rolling camber control method considering incoming material inclination. BACKGROUND

[0002] Camber, also known as bean bend, is the bending of the strip along the horizontal plane in the length direction. Generally, slab camber often occurs at the head and tail of the slab. Since the strip is relatively thick in the rough rolling process, the camber is relatively inconspicuous, but the camber defect is more obvious after finish rolling. The slab camber has great harm to the control and stability of the subsequent rolling accuracy. The factors affecting the slab camber mainly include incoming material factors, equipment factors and working condition factors, which all cause the rolling state to be asymmetric along the roll axis, resulting in the difference in the reduction along the width direction of the rolling mill, thereby causing the camber. The incoming material inclination of the slab has a serious impact on the first pass rolling, and is easy to produce a large camber. After a large camber occurs in the first pass, it further affects the camber control in the subsequent passes, and seriously affects the rolling rhythm. Therefore, it is necessary to control the rough rolling camber, but the current rough rolling camber control method is not ideal due to the insufficient comprehensive consideration of factors. SUMMARY

[0003] The present application provides a rough rolling camber control method considering incoming material inclination to solve the technical problem that the current rough rolling camber control method is not ideal due to the insufficient comprehensive consideration of factors.

[0004] To solve the above technical problem, the present application provides the following technical scheme:

[0005] On the one hand, the present application provides a rough rolling camber control method considering incoming material inclination, comprising:

[0006] collecting rough rolling camber related process parameters;

[0007] calculating a current slab first pass camber control reference value based on the rough rolling camber related process parameters;

[0008] calculating a current slab first pass automatic control camber control amount considering incoming material inclination based on the rough rolling camber related process parameters;

[0009] calculating a current slab first pass camber actual control amount based on the current slab first pass camber control reference value and the current slab first pass automatic control camber control amount considering incoming material inclination;

[0010] issuing the current slab first pass camber actual control amount to a rough rolling basic automation control system to realize the rough rolling slab camber first pass automatic control considering incoming material inclination.

[0011] Further, the rough rolling camber related process parameters include: a current slab incoming inclination value, a first pass camber bending amount of the upper slab, a first pass automatic control camber adjustment amount of the upper slab considering the incoming inclination, and an actual first pass camber adjustment amount of the upper slab.

[0012] Further, a calculation formula of the first pass camber adjustment reference value of the current slab is as follows:

[0013] ;

[0014] Wherein, represents the first pass camber adjustment reference value of the current slab; represents the first pass automatic control camber adjustment amount of the upper slab considering the incoming inclination; represents the actual first pass camber adjustment amount of the upper slab; is a preset constant.

[0015] Further, a calculation formula of the first pass automatic control camber adjustment amount of the current slab considering the incoming inclination is as follows:

[0016] ;

[0017] Wherein, represents the first pass automatic control camber adjustment amount of the current slab considering the incoming inclination, and it only acts on the current slab; , C represents the incoming inclination value of the current slab, is a first preset coefficient, when C is positive, the value is 0.05; when C is negative, the value is -0.05.

[0018] Further, based on the first pass camber adjustment reference value of the current slab and the first pass automatic control camber adjustment amount of the current slab considering the incoming inclination, the actual first pass camber adjustment amount of the current slab is calculated, including:

[0019] According to the first pass camber bending amount of the upper slab, the first pass camber adjustment amount of the current slab is calculated, and the formula is as follows:

[0020] ;

[0021] Wherein, represents the first pass camber adjustment amount of the current slab; , represents the first pass camber bending amount of the upper slab; is a second preset coefficient, and the value is 0.005;

[0022] The actual regulation amount of the current slab first-pass camber is calculated, and the formula is as follows:

[0023] ;

[0024] Wherein, The actual regulation amount of the current slab first-pass camber is calculated.

[0025] In another aspect, the present application also provides an electronic device, comprising a processor and a memory; wherein the memory stores at least one instruction, which is loaded and executed by the processor to implement the above method.

[0026] In another aspect, the present application also provides a computer readable storage medium, which stores at least one instruction, which is loaded and executed by the processor to implement the above method.

[0027] The technical solution provided by the present application has at least the following beneficial effects:

[0028] 1. The present application can improve the slab quality: the present application designs a slab first-pass rolling camber control method considering the incoming material inclination, accurately calculates the slab first-pass rolling camber regulation amount, and issues the camber adjustment value to the rolling basic automation control system, thereby realizing accurate control of the first-pass camber and improving the slab quality.

[0029] 2. The technical solution of the present application can effectively reduce the labor intensity of the operator: the present application automatically gives the current slab first-pass rolling camber regulation amount by considering the influence of the incoming material inclination on the camber, reduces the generation of the slab camber and the intervention of the operator, thereby reducing the labor intensity of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a flow chart of the rough rolling camber control method considering the incoming material inclination provided by the embodiments of the present application;

[0032] Figure 2 is a system block diagram of the electronic device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the embodiments of the present application in combination with the drawings.

[0034] First, it should be noted that in the embodiments of the present application, the words "exemplary", "for example", and the like are used to indicate examples, instances, or illustrations. Any embodiment or design presented as "exemplary" in the present application should not be construed as preferable or advantageous over other embodiments or design schemes. Rather, the word "exemplary" is used to present concepts in a concrete manner. In addition, in the embodiments of the present application, the meaning expressed by "and / or" can be both, or can be either one of the two.

[0035] First embodiment

[0036] The present embodiment aims at the problem that in the hot rough rolling production process, the incoming material inclination is too serious when the slab is discharged, and the subsequent rolling process produces a large camber impact side guide, affecting the rolling rhythm. A rough rolling camber control method considering the incoming material inclination is provided, which can be implemented by an electronic device, which can be a terminal or a server. The execution flow of the method is as shown in Figure 1 , including the following steps:

[0037] S1, collecting rough rolling camber related process parameters;

[0038] Specifically, the rough rolling camber related process parameters collected in the present embodiment include: current slab incoming material inclination value C, unit mm; upper slab first pass camber bending amount , unit mm; upper slab first pass automatic control camber control amount , unit mm; upper slab first pass camber control actual issued control amount , unit mm. It should be noted that the present automatic control method is a parallel camber control method with the method of manual control on site. The present automatic control method will always remain in an online running state after being applied on site, and all related data can be obtained and real-time calculation of relevant control amount is performed. Generally, after the automatic control model is put online, data needs to be accumulated first, and after a period of time, the related parameters are debugged, and after the model runs stably, the site is put into the automatic control model. When the present automatic control model is first run, The value is set according to production experience, and in the subsequent process, it is calculated by the automatic control model.

[0039] S2, calculating the current slab first pass camber control reference value based on the rough rolling camber related process parameters;

[0040] Specifically, in the present embodiment, the calculation method of the current slab first pass camber control reference value is: the camber control amount calculated by the upper slab first pass rolling automatic control model obtained in S1 and the actual issued control amount , calculate the current slab first pass camber control reference value , the formula is as follows:

[0041]

[0042] wherein, is a preset constant, in this embodiment, the value is 0.2. When the method is run for the first time and obtained by the method controlled by the on-site manual, and the relevant values of the subsequent slab are calculated using the results calculated by the method.

[0043] S3, based on the rough rolling camber related process parameters, calculate the current slab first pass automatic control camber control amount considering the incoming material inclination;

[0044] Specifically, in this embodiment, the calculation method of the current slab first pass automatic control camber control amount considering the incoming material inclination is: according to the incoming material inclination value C of the current slab obtained by S1, the current slab first pass automatic control camber control amount considering the incoming material inclination is calculated, and the formula is as follows:

[0045]

[0046] wherein, represents the current slab first pass automatic control camber control amount considering the incoming material inclination, and it only acts on the current slab; , C represents the incoming material inclination value of the current slab, is a first preset coefficient, when C is positive, the value is 0.05; when C is negative, the value is -0.05.

[0047] S4, based on the current slab first pass camber control reference value and the current slab first pass automatic control camber control amount considering the incoming material inclination, calculate the current slab first pass camber actual control amount;

[0048] Specifically, in this embodiment, the process of calculating the current slab first pass camber actual control amount is as follows:

[0049] S41, according to the first pass camber bending amount of the previous slab, calculate the current slab first pass camber control amount, the formula is as follows:

[0050]

[0051] wherein, is the first pass control amount of the current slab calculated according to the first pass bending amount of the previous slab; , is a second preset coefficient, the value is 0.005;

[0052] S42, the current slab first pass camber actual control amount is calculated, and the formula is as follows:

[0053]

[0054] Wherein, represents the current slab first pass camber actual control amount.

[0055] S5, the current slab first pass camber actual control amount is issued to the rough rolling basic automation control system, and the rough rolling slab camber first pass automatic control considering the incoming material inclination is realized.

[0056] Specifically, in the embodiment, the implementation process of S5 is that the current slab first pass camber actual control amount is issued to the on-site rough rolling basic automation control system through the communication module, and when the current slab first pass is rolled, the rough rolling basic automation control system automatically adjusts the roll gap inclination value according to the received camber actual control amount, so as to realize the rough rolling slab camber first pass automatic control considering the incoming material inclination.

[0057] In summary, the embodiment designs the slab first pass rolling camber control method considering the incoming material inclination, accurately calculates the slab first pass rolling camber control amount, and issues the camber adjustment value to the rolling basic automation control system, so as to realize the precise control of the camber first pass and improve the slab quality. The method of the embodiment can reduce the generation of slab camber and the intervention of the operator, so as to reduce the labor intensity of the operator.

[0058] Second embodiment

[0059] The embodiment provides an electronic device, such as Figure 2 As shown in the figure, the electronic device comprises a processor and a memory; wherein the processor and the memory can be connected through a communication bus; the memory stores at least one instruction, which is loaded and executed by the processor to realize the method of the above-mentioned first embodiment. In addition, the electronic device can further comprise a transceiver, and the processor and the transceiver can be connected through a communication bus, and the transceiver is used for communicating with other devices.

[0060] Next, the method of the embodiment will be described in detail in combination with Figure 2 The various constituent components of the electronic device will be described in detail:

[0061] The processor is the control center of the electronic device. The electronic device can include multiple processors. Each of the processors can be a single-CPU or a multi-CPU. The processor can be one processor or a collective term of multiple processing elements. For example, the processor can be one or more central processing units (CPUs), other general purpose processors, application specific integrated circuits (ASICs), or one or more integrated circuits configured to implement an embodiment of the present application, such as one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The general purpose processor can be a microprocessor or any conventional processor, or the like. The processor can perform various functions of the electronic device by running or executing software programs stored in the memory and calling data stored in the memory.

[0062] In a specific implementation, as an embodiment, the processor can include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 1, of course, this is only an exemplary description. Figure 2

[0063] The memory is used to store software programs for implementing the solution of the present application, and is controlled by the processor to perform the implementation. The specific implementation can refer to the method embodiments described above, and will not be described here.

[0064] ​Optionally, the memory may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory may be integrated with the processor or exist independently, and may be accessed through the interface circuit of the electronic device ( Figure 2 (Not shown in the image) is coupled to the processor; however, this embodiment of the invention does not impose specific limitations on this.

[0065] The transceiver may include a receiver and a transmitter. Figure 2 (Not shown separately). The receiver is used to implement the receiving function, and the transmitter is used to implement the transmitting function. The transceiver can be integrated with the processor or exist independently, and can be connected through the interface circuit of the electronic device (…). Figure 2 (Not shown in the image) is coupled to the processor, and this embodiment of the invention does not specifically limit this.

[0066] In addition, it should be noted that, Figure 2 The structure of the electronic device shown is not intended to limit the device. Actual devices may include more or fewer components than shown, or combine certain components, or have different component arrangements. Furthermore, the technical effects achieved by this electronic device when performing the method of the first embodiment described above can be referenced to the technical effects described in the first embodiment; therefore, they will not be repeated here.

[0067] Third Embodiment

[0068] This embodiment provides a computer-readable storage medium storing at least one instruction, which is loaded and executed by a processor to implement the method of the first embodiment described above. The computer-readable storage medium may be a ROM, random access memory, CD-ROM, magnetic tape, floppy disk, or optical data storage device, etc. The instruction stored therein can be loaded and executed by a processor in a terminal.

[0069] Moreover, it should be noted that the present application can be provided as a method, an apparatus, or a computer program product. Therefore, the embodiments of the present application can take the form of an entirely or partially hardware embodiment, an entirely or partially software embodiment, or an embodiment combining software and hardware aspects. Furthermore, when implemented in software, the embodiments of the present application can take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, a computer diskette, an optical storage medium, a magnetic storage medium, and a semiconductor memory device). The computer program product includes one or more computer instructions that when loaded and executed by a computer, cause the computer to carry out the processes or functions described in the embodiments of the present application. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable apparatus. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, such as from a website, a computer, a server, or a data center to another website, computer, server, or data center through a wired (for example, infrared, wireless, microwave, or the like) manner. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, data center, or the like, including one or more collections of available media. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state disk.

[0070] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows 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, an embedded processor, or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate a device that implements the flow Figure 1 The flow or the plurality of flows and / or blocks Figure 1 The device that implements the functions specified in the flow or the plurality of flows and / or blocks.

[0071] These computer program instructions can also be stored in a computer-readable storage medium that can direct the computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer-readable storage medium produce a manufactured product including instruction devices that implement the flow Figure 1 The flow or the plurality of flows and / or blocks Figure 1the functions specified in the individual block or blocks. Such computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate a computer-implemented process, thus the instructions executed on the computer or other programmable devices provide processes for implementing the functions specified in the flowchart block(s) or block(s). Figure 1 the functions specified in the individual block or blocks. Such computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate a computer-implemented process, thus the instructions executed on the computer or other programmable devices provide processes for implementing the functions specified in the flowchart block(s) or block(s). Figure 1 the functions specified in the individual block or blocks. Such computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate a computer-implemented process, thus the instructions executed on the computer or other programmable devices provide processes for implementing the functions specified in the flowchart block(s) or block(s).

[0072] It should also be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or terminal device. Without more limitations, the element defined by the statement "including a…", does not exclude the presence of other identical elements in the process, method, article or terminal device including the element. In addition, the term "and / or" is merely a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B together, and the existence of B alone, where A and B can be singular or plural. In addition, the character " / " in the present document generally represents an "or" relationship between the preceding and following associated objects, but it can also represent an "and / or" relationship, which can be understood in the context before and after. "At least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions means any combination of these items, including single item or any combination of multiple items. For example, at least one of a, b or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0073] In addition, it can be understood that in various embodiments of the present application, the size of the sequence number of the above processes does not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0074] Those skilled in the art can appreciate that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or in a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0075] In several embodiments provided by the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, for example, the division of functional modules / units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed units can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms. The units described as separate components can be or can not be physically separated, and the components displayed as units can be or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment. In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present, or two or more units can be integrated in one unit.

[0076] If the method is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0077] Finally, it should be noted that the above description is only the preferred embodiment of the application, it should be pointed out that although the preferred embodiment of the application has been described, for those skilled in the art, once the basic creative concept of the application is known, several improvements and refinements can be made without departing from the principles of the application, and these improvements and refinements should also be considered as the protection scope of the application. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the application.

Claims

1. A rough rolling camber control method considering incoming material inclination, characterized by, The application relates to a method for controlling a first-pass camber of a rough rolling slab considering a material inclination. Collecting rough rolling camber related process parameters; Based on the rough rolling camber related process parameters, a current slab first-pass camber control reference value is calculated; Based on the rough rolling camber related process parameters, a current slab first-pass automatic control camber control amount considering a material inclination is calculated; Based on the current slab first-pass camber control reference value and the current slab first-pass automatic control camber control amount considering a material inclination, a current slab first-pass camber actual control amount is calculated; The current slab first-pass camber actual control amount is sent to a rough rolling basic automatic control system to realize rough rolling slab first-pass automatic control considering a material inclination; The rough rolling camber related process parameters include a current slab material inclination value, a previous slab first-pass camber bending amount, a previous slab first-pass automatic control camber control amount considering a material inclination and a previous slab first-pass camber actual control amount; The calculation formula of the current slab first-pass automatic control camber control amount considering a material inclination is as follows: Delta T1=f(C) Wherein, ΔT1 represents the first pass automatic control camber control amount of the current slab considering the incoming material inclination, and it only acts on the current slab; C represents the incoming material inclination value of the current slab, and k1 is a first preset coefficient. When C is positive, k1 is 0.05; and when C is negative, k1 is -0.

05.

2. The rough rolling camber control method considering incoming material inclination according to claim 1, wherein, The calculation formula of the current slab first-pass camber control reference value is as follows: wherein, represents the current slab first pass camber control reference value; ΔS a represents the first pass automatic control camber control amount of the slab considering the incoming slab inclination; S' represents the actual first pass camber control amount of the slab; and e is a preset constant.

3. The rough rolling camber control method considering incoming material inclination according to claim 1, wherein, Based on the current slab first-pass camber control reference value and the current slab first-pass automatic control camber control amount considering a material inclination, a current slab first-pass camber actual control amount is calculated, which includes: According to the previous slab first-pass camber bending amount, the current slab first-pass camber control amount is calculated, and the formula is as follows: Delta T2=f(C') Wherein, Delta T2 represents the current slab first-pass camber control amount; f(C')=k2*C', C' represents the previous slab first-pass camber bending amount; k2 is a second preset coefficient, and the value is 0.005; The formula for calculating the current slab first-pass camber actual control amount is as follows: Wherein, S represents the current slab first-pass camber actual control amount.

Images