Steel plate core deformation degree determination method and device, medium and electronic equipment

Abstract

The invention discloses a steel plate core deformation degree determination method and device, a medium and electronic equipment. The method comprises the steps that a first distance is obtained, wherein the first distance is the distance between a segregation zone corresponding to a full-thickness transverse low-power sample obtained through a casting blank and the center of the casting blank; a second distance is obtained, the second distance is the distance between a segregation zone corresponding to a full-thickness transverse sample obtained through a steel plate and the center of the steel plate, and the steel plate is obtained by rolling the casting blank; calculating the core deformation rate of the steel plate according to the first distance and the second distance; and determining the core deformation degree of the steel plate based on the core deformation rate. The accuracy of determining the core deformation degree of the steel plate can be improved.

Description

Background Art

[0002] At present, the deformation degree of the core of the steel plate is mainly measured by the edge punching experiment of the ingot, numerical simulation and laboratory rolling experiment. The edge punching experiment of the ingot can obtain the deformation degree of the core of the steel plate to a certain extent, but there are still obvious shortcomings, such as the edge of the ingot is prone to bulging deformation during rolling, and there is a deformation difference between the filler and the steel matrix. These factors can easily lead to deformation distortion of the filler and the hole. When establishing a mathematical model, numerical simulation usually sets factors such as the ingot, ingot temperature, and work hardening as isotropic, and its simulation results are difficult to correspond to the industrial rolling results. The laboratory rolling experiment uses small samples for multiple rolling passes. Affected by the size of the ingot sample and the temperature drop of the ingot, its quantitative results are significantly different from the industrial rolling results. Based on this, how to improve the accuracy of the deformation degree of the core of the steel plate is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The purpose of the present application is to provide a method, device, medium and electronic equipment for determining the degree of deformation of the core of a steel plate. The present application can improve the accuracy of determining the degree of deformation of the core of a steel plate.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0005] According to one aspect of an embodiment of the present application, a method for determining the degree of deformation in the core of a steel plate is provided, characterized in that the method comprises: obtaining a first distance, the first distance being the distance between a segregation band corresponding to a full-thickness transverse low-magnification sample obtained through the ingot and the center of the ingot; obtaining a second distance, the second distance being the distance between a segregation band corresponding to a full-thickness transverse sample obtained through the steel plate and the center of the steel plate, wherein the steel plate is obtained by rolling the ingot; calculating the core deformation rate of the steel plate according to the first distance and the second distance; and determining the degree of deformation in the core of the steel plate based on the core deformation rate.

[0006] In one embodiment of the present application, based on the aforementioned scheme, before obtaining the first distance and the second distance, the method also includes: performing grinding and erosion operations on the full-thickness lateral low-magnification sample to obtain the first distance; performing grinding and polishing operations on the full-thickness lateral sample to obtain the second distance.

[0007] In one embodiment of the present application, based on the aforementioned scheme, before obtaining the ingot, the method also includes: calculating the installation position of the electromagnetic stirring roller according to a preset total thickness of the ingot, a preset distance between the segregation band and the core of the ingot, an average solidification coefficient of the continuous casting machine and a pulling speed of the continuous casting machine.

[0008] In one embodiment of the present application, based on the above scheme, the installation position of the electromagnetic stirring roller is calculated by the following formula:

[0009]

[0010] Wherein, L is the installation position of the electromagnetic stirring roller in the secondary cooling zone; v is the casting speed of the continuous casting machine; T is the total thickness of the ingot; S 0 is the preset distance between the segregation zone of the ingot and the center; k is the average solidification coefficient of the continuous casting machine.

[0011] In one embodiment of the present application, based on the aforementioned scheme, the method also includes: before turning on the electromagnetic stirring roller, turning on the cooling water, and controlling the corresponding flow rate of the cooling water to be greater than or equal to a preset flow rate; after turning on the electromagnetic stirring roller, turning on the cooling water, and controlling the corresponding time of turning on the cooling water to be greater than or equal to a preset time.

[0012] In one embodiment of the present application, based on the aforementioned solution, before turning on the electromagnetic stirring roller, the method further includes: determining the current intensity and frequency corresponding to the electromagnetic stirring roller according to the preset total thickness of the ingot.

[0013] In one embodiment of the present application, based on the above solution, the core deformation rate is calculated by the following formula:

[0014]

[0015] Among them, S is the core deformation rate; S 0 is the first distance; S 1 is the second distance.

[0016] According to one aspect of an embodiment of the present application, a device for determining the degree of deformation of the core of a steel plate is provided, characterized in that the device comprises: a first acquisition unit for acquiring a first distance, wherein the first distance is the distance between a segregation band corresponding to a full-thickness transverse low-magnification sample obtained through the ingot and the center of the ingot; a second acquisition unit for acquiring a second distance, wherein the second distance is the distance between a segregation band corresponding to a full-thickness transverse sample obtained through the steel plate and the center of the steel plate, wherein the steel plate is obtained by rolling the ingot; a calculation unit for calculating the core deformation rate of the steel plate according to the first distance and the second distance; and a determination unit for determining the degree of deformation of the core of the steel plate based on the core deformation rate.

[0017] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. The computer program includes executable instructions. When the executable instructions are executed by a processor, the method described in the above embodiment is implemented.

[0018] According to one aspect of an embodiment of the present application, an electronic device is provided, comprising: one or more processors; and a memory for storing executable instructions of the processors, wherein when the executable instructions are executed by the one or more processors, the one or more processors implement the methods described in the above embodiments.

[0019] In the present application, first, the distance between the segregation band and the center of the ingot can be obtained, wherein the segregation band is the segregation band corresponding to the full-thickness transverse low-magnification sample obtained through the ingot. Then, the distance between the segregation band and the center of the steel plate can be obtained, wherein the segregation band is the segregation band corresponding to the full-thickness transverse sample obtained through the steel plate, and the steel plate is obtained by rolling the ingot. According to the obtained first distance and second distance, the core deformation rate corresponding to the steel plate can be calculated, so that the core deformation degree of the steel plate can be determined according to the calculated core deformation rate.

[0020] The method for determining the deformation degree of the core of a steel plate according to the present application can improve the accuracy of determining the deformation degree of the core of a steel plate, and can quantitatively describe the metal deformation law of the core of a steel plate, thereby improving the steel rolling process and improving the core quality of the product.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0023] Figure 1 It is a flow chart of a method for determining the degree of deformation of the core of a steel plate according to an embodiment of the present application;

[0024] Figure 2 is a block diagram of a device for determining the degree of deformation of the core of a steel plate according to an embodiment of the present application;

[0025] Figure 3 It is a schematic diagram of the system structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of 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 comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0027] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0028] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0029] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0030] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0031] The implementation details of the technical solution of the embodiment of the present application are described in detail below:

[0032] According to one aspect of the present application, a method for determining the degree of deformation of the core of a steel plate is provided. Figure 1 The flowchart of the method for determining the deformation degree of the core of the steel plate according to the embodiment of the present application is shown. The method for determining the deformation degree of the core of the steel plate can be executed by a device with a computing and processing function. The method for determining the deformation degree of the core of the steel plate includes at least steps 110 to 140, which are described in detail as follows:

[0033] In step 110, a first distance is obtained, where the first distance is the distance between the segregation band corresponding to the full-thickness transverse low-magnification sample obtained through the ingot and the center of the ingot.

[0034] In the present application, in order to more accurately determine the deformation of the core of the steel plate, the ingot can be cut after the molten steel solidifies into the ingot to obtain the full-thickness transverse low-magnification sample. Based on the full-thickness transverse low-magnification sample, a first distance corresponding to the full-thickness transverse low-magnification sample is obtained, wherein the first distance is the distance between the segregation band corresponding to the full-thickness transverse low-magnification sample and the center of the ingot.

[0035] Further, in one embodiment of the present application, before obtaining the first distance, a milling operation and an erosion operation are performed on the full-thickness lateral low-magnification sample to obtain the first distance.

[0036] Furthermore, in one embodiment of the present application, before obtaining the ingot, the installation position of the electromagnetic stirring roller is calculated based on a preset total thickness of the ingot, a preset distance between the segregation band and the core of the ingot, an average solidification coefficient of the continuous casting machine, and a pulling speed of the continuous casting machine.

[0037] Further, in one embodiment of the present application, before turning on the electromagnetic stirring roller, the cooling water is turned on, and the flow rate of the cooling water is controlled to be greater than or equal to a preset flow rate. After turning on the electromagnetic stirring roller, the cooling water is turned on, and the time corresponding to turning on the cooling water is controlled to be greater than or equal to a preset time.

[0038] Furthermore, in one embodiment of the present application, before the electromagnetic stirring roller is turned on, the current intensity and frequency corresponding to the electromagnetic stirring roller are determined according to the preset total thickness of the ingot.

[0039] The installation position of the electromagnetic stirring roller can be calculated by the following formula.

[0040]

[0041] Wherein, L is the installation position of the electromagnetic stirring roller in the secondary cooling zone; v is the casting speed of the continuous casting machine; T is the total thickness of the ingot; S 0 is the preset distance between the segregation zone of the ingot and the center; k is the average solidification coefficient of the continuous casting machine.

[0042] Continue to refer to Figure 1 In step 120, a second distance is obtained, where the second distance is the distance between the segregation band corresponding to the full-thickness cross-sample obtained through the steel plate and the center of the steel plate, wherein the steel plate is obtained by rolling the cast billet.

[0043] In the present application, the steel plate required in the present application can be obtained by rolling the above-mentioned ingot. The steel plate is cut to obtain the full-thickness transverse sample. Based on the full-thickness transverse sample, a second distance corresponding to the full-thickness transverse sample is obtained, wherein the second distance is the distance between the segregation band corresponding to the full-thickness transverse sample and the center of the steel plate.

[0044] Furthermore, in another embodiment of the present application, before obtaining the second distance, the full-thickness cross-sample is subjected to a milling operation and a polishing operation to obtain the second distance.

[0045] Continue to refer to Figure 1 In step 130, the core deformation rate of the steel plate is calculated according to the first distance and the second distance.

[0046] In this application, after the molten steel is obtained into a cast billet by an electromagnetic stirring roller, the cast billet will form a segregation band due to the uneven distribution of the molten steel. Then, during the rolling process of the cast billet, the rolling force needs to penetrate into the core of the steel plate to ensure the metal deformation in the core and promote the healing of the internal defects of the steel plate. Therefore, in order to ensure that the core deformation rate of the steel plate meets the requirements of this application, the core deformation rate can be calculated by the following formula:

[0047]

[0048] Among them, S is the core deformation rate; S 0 is the first distance; S 1 is the second distance.

[0049] Continue to refer to Figure 1 In step 140, the core deformation degree of the steel plate is determined based on the core deformation rate.

[0050] In the present application, after the core deformation rate of the steel plate is calculated by the core deformation rate calculation formula, the core deformation degree of the steel plate in the present application can be determined by comparing the calculated core deformation rate with the core deformation rate pre-set before producing the steel plate.

[0051] The following describes an apparatus embodiment of the present application, which can be used to execute the method for determining the degree of deformation of the core of a steel plate in the above-mentioned embodiment of the present application. For details not disclosed in the apparatus embodiment of the present application, please refer to the embodiment of the method for determining the degree of deformation of the core of a steel plate in the above-mentioned embodiment of the present application.

[0052] Figure 2 It is a block diagram of a device for determining the degree of deformation of the core of a steel plate according to an embodiment of the present application.

[0053] Reference Figure 2As shown, according to an embodiment of the present application, a device 200 for determining the degree of deformation of the core of a steel plate, the device 200 includes: a first acquisition unit 201, used to acquire a first distance, the first distance being the distance between a segregation band corresponding to a full-thickness transverse low-magnification sample obtained through the ingot and the center of the ingot; a second acquisition unit 202, used to acquire a second distance, the second distance being the distance between a segregation band corresponding to a full-thickness transverse sample obtained through the steel plate and the center of the steel plate, wherein the steel plate is obtained by rolling the ingot; a calculation unit 203, used to calculate the core deformation rate of the steel plate according to the first distance and the second distance; a determination unit 204, used to determine the degree of deformation of the core of the steel plate based on the core deformation rate.

[0054] As another aspect, the present application further provides a computer-readable storage medium on which a program product capable of implementing the above method of the present specification is stored. In some possible implementations, various aspects of the present application may also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps according to various exemplary implementations of the present application described in the above "Exemplary Method" section of the present specification.

[0055] Computer readable signal media may include data signals propagated in baseband or as part of a carrier wave, in which readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Readable signal media may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0056] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0057] Program code for performing the operations of the present application may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user 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., using an Internet service provider to connect through the Internet).

[0058] As another aspect, the present application also provides an electronic device capable of implementing the above method.

[0059] Those skilled in the art will appreciate that various aspects of the present application may be implemented as a system, method or program product. Therefore, various aspects of the present application may be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to as "circuit", "module" or "system" herein.

[0060] Figure 3 It is a schematic diagram of the system structure of an electronic device according to an embodiment of the present application. Figure 3 The electronic device 300 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0061] like Figure 3 As shown, the electronic device 300 is in the form of a general computing device. The components of the electronic device 300 may include but are not limited to: at least one processing unit 310, at least one storage unit 320, and a bus 330 connecting different system components (including the storage unit 320 and the processing unit 310).

[0062] The storage unit stores program codes, which can be executed by the processing unit 310, so that the processing unit 310 executes the steps described in the above “Example Method” section of this specification according to various exemplary implementations of the present application.

[0063] The storage unit 320 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 321 and / or a cache memory unit 322 , and may further include a read-only memory unit (ROM) 323 .

[0064] The storage unit 320 may also include a program / utility 324 having a set (at least one) of program modules 325, such program modules 325 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0065] Bus 330 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0066] The electronic device 300 may also communicate with one or more external devices 1200 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 300, and / or communicate with any device that enables the electronic device 300 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 350. Furthermore, the electronic device 300 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter 360. As shown, the network adapter 360 communicates with other modules of the electronic device 300 via a bus 330. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0067] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the implementation methods of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the implementation methods of the present application.

[0068] In addition, the above-mentioned figures are only schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, and are not intended to be limiting. It is easy to understand that the processes shown in the above-mentioned figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, in multiple modules.

[0069] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be performed without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A method for determining the degree of deformation of the core of a steel plate, characterized in that: The method comprises: Obtaining a first distance, wherein the first distance is the distance between the segregation zone corresponding to the full-thickness transverse low-magnification sample obtained through the ingot and the center of the ingot; Obtaining a second distance, where the second distance is the distance between the segregation band corresponding to the full-thickness transverse sample obtained through the steel plate and the center of the steel plate, wherein the steel plate is obtained by rolling the cast slab; Calculating the core deformation rate of the steel plate according to the first distance and the second distance; Based on the core deformation rate, the core deformation degree of the steel plate is determined.

2. The method according to claim 1, characterized in that Before acquiring the first distance and the second distance, the method further includes: performing a milling operation and an erosion operation on the full-thickness lateral macro-magnification sample to obtain the first distance; The full thickness cross sample is subjected to a milling operation and a polishing operation to obtain the second distance.

3. The method according to claim 1, characterized in that Before obtaining the casting billet, the method further comprises: The installation position of the electromagnetic stirring roller is calculated according to the preset total thickness of the ingot, the preset distance between the segregation zone and the core of the ingot, the average solidification coefficient of the continuous casting machine and the casting speed of the continuous casting machine.

4. The method according to claim 3, characterized in that The installation position of the electromagnetic stirring roller is calculated by the following formula: Among them, L is the installation position of the electromagnetic stirring roller in the secondary cooling zone; v is the casting speed of the continuous casting machine; T is the total thickness of the ingot; S0 is the pre-set distance from the center of the ingot segregation zone; k is the average solidification coefficient of the continuous casting machine.

5. The method according to claim 3, characterized in that: The method further comprises: Before turning on the electromagnetic stirring roller, turning on the cooling water, and controlling the flow rate of the cooling water to be greater than or equal to a preset flow rate; After the electromagnetic stirring roller is turned on, the cooling water is turned on, and the time corresponding to turning on the cooling water is controlled to be greater than or equal to a preset time.

6. The method according to claim 3, characterized in that Before starting the electromagnetic stirring roller, the method further comprises: The current intensity and frequency corresponding to the electromagnetic stirring roller are determined according to the preset total thickness of the ingot.

7. The method according to claim 1, characterized in that The core deformation rate is calculated by the following formula: Among them, S is the core deformation rate; S0 is the first distance; S1 is the second distance.

8. A device for determining the degree of deformation of the core of a steel plate, characterized in that: The device comprises: A first acquisition unit is used to acquire a first distance, where the first distance is the distance between the segregation zone corresponding to the full-thickness transverse low-magnification sample obtained through the ingot and the center of the ingot; A second acquisition unit is used to acquire a second distance, where the second distance is the distance between the segregation band corresponding to the full-thickness transverse sample acquired through the steel plate and the center of the steel plate, wherein the steel plate is obtained by rolling the cast slab; a calculation unit, configured to calculate a core deformation rate of the steel plate according to the first distance and the second distance; A determination unit is used to determine the core deformation degree of the steel plate based on the core deformation rate.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores at least one program code, and the at least one program code is loaded and executed by a processor to implement the operations performed by the method according to any one of claims 1 to 7.

10. An electronic device, characterized in that: The electronic device includes one or more processors and one or more memories, wherein the one or more memories store at least one program code, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the method according to any one of claims 1 to 7.

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