A method, device, medium, and electronic device for roll profile correction of a CVC intermediate roll

Abstract

The present application relates to the technical field of rolling steel, and discloses a roll profile correction method, device, medium and electronic device for a CVC intermediate roll. The method includes: obtaining the basic parameters of the roll train to which the CVC intermediate roll belongs, and calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters; obtaining the original roll profile function of the CVC intermediate roll, and obtaining the corrected roll profile function of the CVC intermediate roll; performing roll profile correction on the area of the CVC intermediate roll defined by the roll profile correction length according to the original roll profile function and the corrected roll profile function to obtain the target roll profile of the CVC intermediate roll. By correcting the roll profile of the CVC intermediate roll, the present application avoids circumferential scratches on the CVC intermediate roll caused by the end of the work roll, thereby ensuring the production quality of the rolled piece.

Description

Background Art

[0002] The CVC roll profile is a common roll profile in the strip rolling field. The roll bodies of the upper and lower rolls are ground into the same S-shaped CVC curve. The positions of the upper and lower intermediate rolls are inverted by 180°. The upper and lower intermediate rolls can be synchronized and shifted axially, and the roll gap forms continuously variable positive and negative crowns. Due to its special functions, it is generally used as the intermediate roll of a six-high rolling mill, and its roll body length is longer than that of the work roll and the backup roll.

[0003] During the rolling process, the edge of the work roll body contacts the body of the intermediate roll. As the intermediate roll shifts axially, the contact position with the body of the intermediate roll changes. The chamfered area at the edge of the work roll is relatively short, generally between ten millimeters and dozens of millimeters. Since the body of the intermediate roll has a self-contained S-shaped CVC curve, as the intermediate roll shifts axially, the contact stress with the end of the work roll changes accordingly. When the end of the work roll is closer to the "bottle mouth" end, the contact stress is greater. Under the continuous rolling pressure, the end of the work roll will cause circumferential scratches on the "bottle mouth" end of the intermediate roll. The circumferentially scratched part is transferred to the body of the intermediate roll as the intermediate roll shifts axially, and then transmitted to the rolled piece, affecting the quality of the rolled piece. Summary of the Invention

[0004] The purpose of this application is to provide a roll profile correction method and device for a CVC intermediate roll, a computer-readable storage medium, and an electronic device, to avoid circumferential scratches on the CVC intermediate roll caused by the end of the work roll, thereby ensuring the quality of the rolled piece.

[0005] Other features and advantages of this application will become apparent through the following detailed description, or be learned in part through the practice of this application.

[0006] According to one aspect of the embodiments of this application, a roll profile correction method for a CVC intermediate roll is provided. The method includes: obtaining the basic parameters of the roll train to which the CVC intermediate roll belongs, and calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters; obtaining the original roll profile function of the CVC intermediate roll and obtaining the corrected roll profile function of the CVC intermediate roll; and performing roll profile correction on the CVC intermediate roll in the area defined by the roll profile correction length according to the original roll profile function and the corrected roll profile function to obtain the target roll profile of the CVC intermediate roll.

[0007] In an embodiment of this application, based on the foregoing solution, the obtaining the basic parameters of the roll train to which the CVC intermediate roll belongs includes: obtaining the roll body length of the work roll in the roll train and the roll body length of the CVC intermediate roll; obtaining the upper limit value of the width of the rolled piece that the roll train can roll; obtaining the upper limit value of the theoretical stroke of the axial shifting of the intermediate roll; and obtaining the axial shifting range interval of the intermediate roll for axial shifting.

[0008] In an embodiment of the present application, based on the foregoing solution, calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters includes: calculating the roll profile correction length of the CVC intermediate roll through the following formula:

[0009]

[0010] wherein, L represents the roll profile correction length; L WR represents the body length of the work roll; W represents the upper limit value of the width of the rolled piece that the roll train can roll, where W < L WR ; S max represents the upper limit value of the theoretical stroke of the intermediate roll for shifting; S represents the shifting range interval of the intermediate roll for shifting.

[0011] In an embodiment of the present application, based on the foregoing solution, the original roll profile function of the CVC intermediate roll includes:

[0012] y = ax + bx 2 + cx 3

[0013] wherein, y represents the original roll profile value of the CVC intermediate roll at each body position; x represents the body position of the CVC intermediate roll, and a, b, and c are constant coefficients.

[0014] In an embodiment of the present application, based on the foregoing solution, the corrected roll profile function of the CVC intermediate roll includes:

[0015]

[0016] wherein, y' represents the corrected roll profile value of the CVC intermediate roll at each body position; x represents the body position of the CVC intermediate roll; R represents the arc radius of the CVC intermediate roll; L IMR represents the body length of the CVC intermediate roll; L represents the roll profile correction length.

[0017] In an embodiment of the present application, based on the foregoing solution, correcting the roll profile in the area defined by the roll profile correction length on the CVC intermediate roll according to the original roll profile function and the corrected roll profile function to obtain the target roll profile of the CVC intermediate roll includes: performing discretization processing on the original roll profile function to obtain the original roll profile values of the CVC intermediate roll at each target discrete point; performing discretization processing on the corrected roll profile function to obtain the corrected roll profile values of the CVC intermediate roll at each target discrete point; and based on the original roll profile values at each target discrete point and the corrected roll profile values at each target discrete point, correcting the roll profile in the area defined by the roll profile correction length on the CVC intermediate roll to obtain the target roll profile of the CVC intermediate roll.

[0018] In one embodiment of the present application, based on the foregoing solution, the roll profile correction of the area defined by the roll profile correction length on the CVC intermediate roll is performed based on the original roll profile values of each target discrete point and the corrected roll profile values of each target discrete point to obtain the target roll profile of the CVC intermediate roll, including: for each target discrete point, summing the original roll profile value and the corrected roll profile value of the target discrete point to obtain the target roll profile value of the target discrete point; based on the target roll profile values of each target discrete point, performing roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll to obtain the target roll profile of the CVC intermediate roll.

[0019] According to one aspect of the embodiments of the present application, a roll profile correction device for a CVC intermediate roll includes: a first acquisition unit configured to acquire the basic parameters of the roll train to which the CVC intermediate roll belongs and calculate the roll profile correction length of the CVC intermediate roll according to the basic parameters; a second acquisition unit configured to acquire the original roll profile function of the CVC intermediate roll and acquire the corrected roll profile function of the CVC intermediate roll; and a correction unit configured to perform roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll according to the original roll profile function and the corrected roll profile function to obtain the target roll profile of the CVC intermediate roll.

[0020] According to one aspect of the embodiments of the present application, a computer-readable storage medium stores a computer program thereon, and the computer program includes executable instructions that, when executed by a processor, implement the roll profile correction method of the CVC intermediate roll as described in the above embodiments.

[0021] According to one aspect of the embodiments of the present application, an electronic device is provided, including: one or more processors; a memory configured to store executable instructions of the processor, and when the executable instructions are executed by the one or more processors, the one or more processors implement the roll profile correction method of the CVC intermediate roll as described in the above embodiments.

[0022] In the technical solution of the embodiments of the present application, by acquiring the basic parameters of the roll train to which the CVC intermediate roll belongs, calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters, acquiring the original roll profile function of the CVC intermediate roll, and acquiring the corrected roll profile function of the CVC intermediate roll, roll profile correction is performed on the area defined by the roll profile correction length on the CVC intermediate roll to obtain the target roll profile of the CVC intermediate roll. By correcting the roll profile of the CVC intermediate roll, the present application avoids circumferential scratches on the CVC intermediate roll caused by the ends of the work rolls, thereby ensuring the production quality of the rolled pieces.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this application. Brief Description of the Drawings

[0024] The drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application. Obviously, the drawings in the following description are only some embodiments of this application, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0025] Figure 1 FIG. is a diagram of a roll system of a typical six-high CVC rolling mill shown according to an embodiment of this application;

[0026] Figure 2 FIG. is a flowchart of a roll profile correction method for a CVC intermediate roll shown according to an embodiment of this application;

[0027] Figure 3 FIG. is a first flowchart of obtaining the target roll profile of a CVC intermediate roll shown according to an embodiment of this application;

[0028] Figure 4 FIG. is a second flowchart of obtaining the target roll profile of a CVC intermediate roll shown according to an embodiment of this application;

[0029] Figure 5 FIG. is a block diagram of a roll profile correction device for a CVC intermediate roll shown according to an embodiment of this application;

[0030] Figure 6 FIG. is a schematic diagram of a computer-readable storage medium shown according to an embodiment of this application;

[0031] Figure 7 FIG. is a schematic diagram of the system structure of an electronic device shown according to an embodiment of this application. Detailed Embodiments

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0033] In addition, the described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0034] The block diagrams shown in the drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0035] The flowcharts shown in the drawings are only exemplary illustrations and do not necessarily include all the content and operations / steps, nor do they necessarily have to be executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be combined or partially combined, so the actual execution order may change according to the actual situation.

[0036] It should be noted that: "a plurality of" mentioned in this article refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those shown or described.

[0038] See Figure 1 , Figure 1 is a typical roll system diagram of a six-high CVC rolling mill shown according to an embodiment of the present application. The roll system 100 may include backup rolls, CVC intermediate rolls, and work rolls.

[0039] Among them, the backup rolls can be specifically divided into upper backup rolls and lower backup rolls. The upper backup rolls and lower backup rolls transmit the required pressure in the roll system and act on the rolled piece. The CVC intermediate rolls can be specifically divided into upper intermediate rolls and lower intermediate rolls.

[0040] In the roll system, the positions of the upper intermediate roll and the lower intermediate roll are inverted by 180°. By shifting them to both sides, the extrusion degree with the backup roll and the work roll is adjusted, thereby realizing the control of the pressure acting on the rolled piece. Specifically, the work roll can be divided into an upper work roll and a lower work roll.

[0041] In the roll system, the upper work roll and the lower work roll directly act on the rolled piece to form a rolling pressure, thereby realizing the processing of the rolled piece.

[0042] Here, in combination with Figure 1 , a motor can be arranged on the drive side of the roll system, and the work roll can be connected to the motor to provide power for the work roll in the roll system.

[0043] When the roll system is working, as the intermediate roll shifts, the stress in contact with the end of the work roll also changes accordingly. The greater the contact stress, the greater the taper at the "bottle mouth" end of the intermediate roll under the continuous rolling pressure, and it is easier for the end of the work roll to cause circumferential scratches on the "bottle mouth" end of the intermediate roll (such as Figure 1 the position of the dotted circle in), and the circumferentially scratched part is transferred to the roll body of the intermediate roll as the intermediate roll shifts, and then transmitted to the rolled piece, affecting the production quality of the rolled piece.

[0044] Therefore, through a roll profile correction method of a CVC intermediate roll proposed in this application, a target roll profile of the CVC intermediate roll that can avoid the end of the work roll from causing circumferential scratches on the "bottle mouth" end of the intermediate roll is determined.

[0045] Figure 2 FIG. is a flowchart of the roll profile correction method of the CVC intermediate roll shown in the embodiments of this application. The roll profile correction method of the CVC intermediate roll at least includes steps 110 to 150. The details are introduced as follows:

[0046] Referring to Figure 2 as shown, in step 110, the basic parameters of the roll system to which the CVC intermediate roll belongs are obtained, and the roll profile correction length of the CVC intermediate roll is calculated according to the basic parameters.

[0047] In this application, obtaining the basic parameters of the roll system to which the CVC intermediate roll belongs may include: obtaining the roll body length of the work roll and the roll body length of the CVC intermediate roll in the roll system, obtaining the upper limit value of the width of the rolled piece that the roll system can roll, obtaining the upper limit value of the theoretical stroke of the intermediate roll for roll shifting, and obtaining the roll shifting range interval of the intermediate roll for roll shifting.

[0048] Furthermore, calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters may include: calculating the roll profile correction length of the CVC intermediate roll through the following formula:

[0049]

[0050] Among them, L represents the roll profile correction length; L WR represents the roll body length of the work roll; W represents the upper limit value of the width of the rolled piece that the roll train can roll, where W < L WR ; S max represents the upper limit value of the theoretical travel of the intermediate roll for shifting, and L IMR represents the roll body length of the CVC intermediate roll; S represents the shifting range interval of the intermediate roll for shifting.

[0051] For example, in a specific embodiment, through measurement, the roll body length L of the work roll WR = 1970 mm, the roll body length L of the CVC intermediate roll IMR = 2370 mm, the upper limit value W of the width of the rolled piece that the roll train can roll = 1850 mm, then the upper limit value of the theoretical travel of the intermediate roll for shifting And the shifting range interval S of the intermediate roll for shifting = 150 mm.

[0052] Thus, the roll profile correction length in this specific embodiment can be obtained

[0053] Refer again to Figure 2 shown, in step 130, obtain the original roll profile function of the CVC intermediate roll, and obtain the corrected roll profile function of the CVC intermediate roll.

[0054] Specifically, the original roll profile function of the CVC intermediate roll may include:

[0055] y = ax + bx 2 + cx 3

[0056] Among them, y represents the original roll profile value of the CVC intermediate roll at each roll body position; x represents the roll body position of the CVC intermediate roll, and a, b, c are constant coefficients.

[0057] Furthermore, the corrected roll profile function of the CVC intermediate roll may include:

[0058]

[0059] Among them, y' represents the corrected roll profile value of the CVC intermediate roll at each roll body position; x represents the roll body position of the CVC intermediate roll; R represents the arc radius of the CVC intermediate roll; L IMR represents the roll body length of the CVC intermediate roll; L represents the roll profile correction length.

[0060] For example, in combination with the above specific embodiments, the original roll profile values y = ax + bx of the CVC intermediate roll in each roll body position in this embodiment can be obtained 2 + cx 3 = 1.38×10 -3 x - 1.11×10 -6 x 2 + 2.67×10 -10 x 3 . Additionally, after determining that the arc radius R of the CVC intermediate roll is 200,000 mm, then the corrected roll profile values of the CVC intermediate roll in each roll body position in this embodiment are:

[0061]

[0062] Continue to refer to Figure 2 shown. In step 150, according to the original roll profile function and the corrected roll profile function, roll profile correction is performed on the area of the CVC intermediate roll defined by the roll profile correction length to obtain the target roll profile of the CVC intermediate roll. Further, it can also be executed according to the steps as Figure 2 shown.

[0063] Refer to Figure 3 . Figure 3 FIG. is the first flowchart showing the process of obtaining the target roll profile of the CVC intermediate roll according to an embodiment of the present application, which specifically may include steps 151 to 153:

[0064] Step 151: Discretize the original roll profile function to obtain the original roll profile values of the CVC intermediate roll at each target discrete point.

[0065] Step 152: Discretize the corrected roll profile function to obtain the corrected roll profile values of the CVC intermediate roll at each target discrete point.

[0066] Step 153: Based on the original roll profile values at each target discrete point and the corrected roll profile values at each target discrete point, perform roll profile correction on the area of the CVC intermediate roll defined by the roll profile correction length to obtain the target roll profile of the CVC intermediate roll.

[0067] Further, step 153 in Figure 3 specifically may include steps 1531 to 1532:

[0068] Step 1531: For each target discrete point, sum the original roll profile value and the corrected roll profile value of the target discrete point to obtain the target roll profile value of the target discrete point.

[0069] Step 1532: Based on the target roll profile values of each target discrete point, perform roll profile correction on the area of the CVC intermediate roll defined by the roll profile correction length to obtain the target roll profile of the CVC intermediate roll.

[0070] For example, continuing with the above specific embodiment, taking each 1 mm along the roll body of the CVC intermediate roll as a point, discretize the original roll profile function of the CVC intermediate roll, and the original roll profile value A[i] of the target discrete point can be obtained; similarly, taking each 1 mm along the roll body of the CVC intermediate roll as a point, discretize the corrected roll profile function of the CVC intermediate roll, and the corrected roll profile value B[i] of the target discrete point can be obtained, where i = 0, 1, 2,..., 273. Therefore, the target roll profile value C[i] of the target discrete point can be obtained as C[i]=A[i]+B[i], i = 0, 1, 2,..., 273. Thus, based on the obtained target roll profile values of each target discrete point, perform roll profile correction on the area of the CVC intermediate roll defined by the roll profile correction length to obtain the target roll profile of the CVC intermediate roll.

[0071] To enable those skilled in the art to better understand the present application, the following will describe the present application in conjunction with another specific embodiment:

[0072] In this specific embodiment, it is measured that the roll body length L of the work roll WR = 2230 mm, and the roll body length L of the CVC intermediate roll IMR = 2730 mm. The upper limit value W of the width of the rolled piece that the roll train can roll is 2000 mm. Then, the upper limit value of the theoretical stroke of the intermediate roll for roll shifting And the roll shifting range interval S of the intermediate roll for roll shifting is 200 mm.

[0073] Thus, the roll profile correction length in this embodiment can be obtained

[0074] In this embodiment, the original roll profile value y = ax + bx 2 + cx 3 = 1.41×10 -3 x - 1.14×10 -6 x 2 + 2.75×10 -10 x 3 , and in addition, after determining that the arc radius R of the CVC intermediate roll is 300000 mm, then the corrected roll profile value of the CVC intermediate roll at each roll body position in this embodiment:

[0075]

[0076] Based on this, taking every 1 mm along the roll body of the CVC intermediate roll as a point, the original roll profile function of the CVC intermediate roll is discretized, and the original roll profile value A[i] of the target discrete point can be obtained; similarly, taking every 1 mm along the roll body of the CVC intermediate roll as a point, the modified roll profile function of the CVC intermediate roll is discretized, and the modified roll profile value B[i] of the target discrete point can be obtained, where i = 0, 1, 2,..., 273. Therefore, the target roll profile value C[i] = A[i] + B[i] of the target discrete point can be obtained, i = 0, 1, 2,..., 273. Thus, according to the target roll profile values of each obtained target discrete point, the roll profile of the area defined by the roll profile correction length on the CVC intermediate roll is corrected to obtain the target roll profile of the CVC intermediate roll in this embodiment.

[0077] In summary, in the technical solution of the embodiment of the present application, by obtaining the basic parameters of the roll train to which the CVC intermediate roll belongs, calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters, obtaining the original roll profile function of the CVC intermediate roll, and obtaining the modified roll profile function of the CVC intermediate roll, the roll profile of the area defined by the roll profile correction length on the CVC intermediate roll is corrected according to the original roll profile function and the modified roll profile function to obtain the target roll profile of the CVC intermediate roll. By correcting the roll profile of the CVC intermediate roll in the present application, circumferential scratches on the CVC intermediate roll caused by the end of the work roll are avoided, thereby ensuring the production quality of the rolled piece.

[0078] The following introduces the device embodiment of the present application, which can be used to execute the roll profile correction method of the CVC intermediate roll in the above embodiment of the present application. For the details not disclosed in the device embodiment of the present application, please refer to the embodiment of the roll profile correction method of the CVC intermediate roll in the above of the present application.

[0079] Figure 5 It is a block diagram of a roll profile correction device for a CVC intermediate roll shown according to an embodiment of the present application.

[0080] Refer to Figure 5 As shown, a roll profile correction device 500 for a CVC intermediate roll in an embodiment of the present application is shown. The device 500 includes: a first acquisition unit 501, a second acquisition unit 502, and a correction unit 503.

[0081] Among them, the first acquisition unit 501 is configured to acquire the basic parameters of the roll system to which the CVC intermediate roll belongs, and calculate the roll profile correction length of the CVC intermediate roll according to the basic parameters; the second acquisition unit 502 is configured to acquire the original roll profile function of the CVC intermediate roll and the corrected roll profile function of the CVC intermediate roll; the correction unit 503 is configured to perform roll profile correction on the CVC intermediate roll in the area defined by the roll profile correction length according to the original roll profile function and the corrected roll profile function, so as to obtain the target roll profile of the CVC intermediate roll.

[0082] As another aspect, the present application also provides a computer-readable storage medium, on which a program product capable of implementing the above-mentioned roll profile correction method of the CVC intermediate roll is stored. In some possible implementation manners, each aspect of the present application can also be implemented in the form of a program product, which includes program code. When the program product runs on a terminal device, the program code is used to cause the terminal device to execute the steps according to various exemplary embodiments of the present application described in the "Exemplary Method" section of this specification.

[0083] Reference Figure 6 As shown, a program product 600 for implementing the above method according to an embodiment of the present application is described. It can be a portable compact disc read-only memory (CD-ROM) and includes program code, and can run on a terminal device, such as a personal computer. However, the program product of the present application is not limited to this. In this document, the readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in combination with an instruction execution system, apparatus, or device.

[0084] The program product can adopt any combination of one or more readable media. The readable media can be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the readable storage medium include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0085] A computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. The readable signal medium may also be any readable medium other than a readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device.

[0086] The program code contained on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0087] The program code for performing the operations of this application may be written in any combination of one or more programming languages, including object-oriented programming languages such as Java, C++, etc., and also including conventional procedural programming languages such as the "C" language or similar programming languages. The program code may execute entirely on the user's computing device, partially on the user's device, as a stand-alone software package, partially on the user's computing device and partially on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user's computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., through the Internet using an Internet service provider).

[0088] As another aspect, this application also provides an electronic device capable of implementing the above method.

[0089] Those skilled in the art can understand that various aspects of this application can be implemented as a system, method, or program product. Therefore, various aspects of this application can be specifically implemented in the following forms: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or an implementation combining hardware and software aspects, which can be collectively referred to as "circuitry", "module", or "system" here.

[0090] Next, refer to Figure 7 to describe the electronic device 700 according to this embodiment of this application. Figure 7 The illustrated electronic device 700 is merely an example and should not impose any limitation on the functions and usage scope of the embodiments of this application.

[0091] As Figure 7As shown, the electronic device 700 is presented in the form of a general-purpose computing device. The components of the electronic device 700 may include, but are not limited to: at least one of the above-mentioned processing units 710, at least one of the above-mentioned storage units 720, and a bus 730 that connects different system components (including the storage unit 720 and the processing unit 710).

[0092] Among them, the storage unit stores program code, and the program code can be executed by the processing unit 710, so that the processing unit 710 executes the steps according to various exemplary embodiments of the present application described in the "Embodiment Method" section of this specification.

[0093] The storage unit 720 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 721 and / or a cache storage unit 722, and may further include a read-only storage unit (ROM) 723.

[0094] The storage unit 720 may also include a program / utility 724 having a set (at least one) of program modules 725. Such program modules 725 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include the implementation of a network environment.

[0095] The bus 730 may represent one or more of several types of bus structures, including a storage unit bus or a storage unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0096] The electronic device 700 may also communicate with one or more external devices 900 (such as a keyboard, a pointing device, a Bluetooth device, etc.), and may also communicate with one or more devices that enable a user to interact with the electronic device 700, and / or communicate with any device that enables the electronic device 700 to communicate with one or more other computing devices (such as a router, a modem, etc.). Such communication may be performed through an input / output (I / O) interface 750. And, the electronic device 700 may also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 760. As shown in the figure, the network adapter 760 communicates with other modules of the electronic device 700 through the bus 730. It should be understood that although not shown in the figure, other hardware and / or software modules may be used in combination with the electronic device 700, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, etc.

[0097] Through the description of the above embodiments, those skilled in the art can easily understand that the exemplary embodiments described herein can be implemented by software or by a combination of software and necessary hardware. Therefore, the technical solutions according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (such as a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present application.

[0098] In addition, the above drawings are only schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, rather than for limiting purposes. It is easy to understand that the processes shown in the above drawings do not indicate or limit the time sequence of these processes. Additionally, it is also easy to understand that these processes can be executed synchronously or asynchronously, for example, in multiple modules.

[0099] It should be understood that the present application is not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A method for correcting the roll profile of a CVC intermediate roll, characterized in that, The method includes: Obtaining the basic parameters of the roll system to which the CVC intermediate roll belongs, and calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters; Obtaining the original roll profile function of the CVC intermediate roll, and obtaining the corrected roll profile function of the CVC intermediate roll; Performing roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll according to the original roll profile function and the corrected roll profile function to obtain the target roll profile of the CVC intermediate roll; The obtaining the basic parameters of the roll system to which the CVC intermediate roll belongs includes: obtaining the roll body length of the work roll in the roll system and the roll body length of the CVC intermediate roll; obtaining the upper limit value of the width of the rolled workpiece that the roll system can roll; obtaining the upper limit value of the theoretical stroke of the intermediate roll for shifting; obtaining the shifting range interval of the intermediate roll for shifting; The calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters includes: calculating the roll profile correction length of the CVC intermediate roll through the following formula: Among them, represents the roll profile correction length; represents the body length of the work roll; represents the upper limit value of the width of the rolled piece that the roll train can roll, where < ; represents the upper limit value of the theoretical stroke of the intermediate roll for shifting; represents the shifting range interval of the intermediate roll for shifting.

2. The method according to claim 1, wherein The original roll profile function of the CVC intermediate roll includes: Among them, represents the original roll profile value of the CVC intermediate roll at each roll body position; represents the roll body position of the CVC intermediate roll, , , is a constant coefficient.

3. The method according to claim 2, wherein The corrected roll profile function of the CVC intermediate roll includes: Among them, represents the corrected roll profile value of the CVC intermediate roll at each roll body position; represents the roll body position of the CVC intermediate roll; represents the arc radius of the CVC intermediate roll; represents the roll body length of the CVC intermediate roll; represents the roll profile correction length.

4. The method according to claim 3, wherein The performing roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll according to the original roll profile function and the corrected roll profile function to obtain the target roll profile of the CVC intermediate roll includes: Performing discretization processing on the original roll profile function to obtain the original roll profile values of the CVC intermediate roll at each target discrete point; Performing discretization processing on the corrected roll profile function to obtain the corrected roll profile values of the CVC intermediate roll at each target discrete point; Based on the original roll profile values at each target discrete point and the corrected roll profile values at each target discrete point, performing roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll to obtain the target roll profile of the CVC intermediate roll.

5. The method according to claim 4, characterized in that, The performing roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll based on the original roll profile values at each target discrete point and the corrected roll profile values at each target discrete point to obtain the target roll profile of the CVC intermediate roll includes: For each target discrete point, summing the original roll profile value and the corrected roll profile value of the target discrete point to obtain the target roll profile value of the target discrete point; Based on the target roll profile values at each target discrete point, performing roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll to obtain the target roll profile of the CVC intermediate roll.

6. A roll profile correction device for a CVC intermediate roll, characterized in that, Includes: A first obtaining unit, configured to obtain the basic parameters of the roll system to which the CVC intermediate roll belongs, and calculate the roll profile correction length of the CVC intermediate roll according to the basic parameters; A second obtaining unit, configured to obtain the original roll profile function of the CVC intermediate roll, and obtain the corrected roll profile function of the CVC intermediate roll; A correction unit, configured to perform roll profile correction on the area defined by the roll profile correction length on the CVC intermediate roll according to the original roll profile function and the corrected roll profile function to obtain the target roll profile of the CVC intermediate roll; Obtaining the basic parameters of the roll system to which the CVC intermediate roll belongs, including: obtaining the roll body length of the work roll and the roll body length of the CVC intermediate roll in the roll system; obtaining the upper limit value of the width of the rolled workpiece that the roll system can roll; obtaining the upper limit value of the theoretical stroke of the intermediate roll for shifting; obtaining the shifting range interval of the intermediate roll for shifting. Calculating the roll profile correction length of the CVC intermediate roll according to the basic parameters, including: calculating the roll profile correction length of the CVC intermediate roll through the following formula: Among them, represents the roll profile correction length; represents the roll body length of the work roll; represents the upper limit value of the width of the rolled piece that can be rolled by the roll train, where < ; represents the upper limit value of the theoretical stroke of the intermediate roll for shifting; represents the shifting range interval of the intermediate roll for shifting.

7. A computer-readable program medium, characterized in that, It stores computer program instructions, and when the computer program instructions are executed by a computer, the computer is made to execute the method according to any one of claims 1 to 5.

8. An electronic device for roll profile correction of a CVC intermediate roll, characterized in that, The electronic device includes: A processor; A memory, on which computer-readable instructions are stored, and when the computer-readable instructions are executed by the processor, the method according to any one of claims 1 to 5 is implemented.

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