Method and device for controlling the thickening rolling of hot rolled strip, medium and electronic equipment

Abstract

The application relates to the technical field of steel rolling, and discloses a control method and device for thickening rolling of hot-rolled strip steel, a medium and electronic equipment. The method comprises the following steps: obtaining a to-be-rolled slab, and dividing the to-be-rolled slab into a first sub-slab, a second sub-slab and a third sub-slab; giving the first sub-slab and the second sub-slab a non-shearing mark, and giving the third sub-slab a shearing mark; obtaining historical rolling parameters of a rolling mill; for each sub-slab of each to-be-rolled slab, based on the historical rolling parameters, the rolling mill is controlled to roll, and the historical rolling parameters are updated; when the sub-slab reaches a set position of a coiling area, it is judged whether the sub-slab carries the non-shearing mark; if the sub-slab carries the non-shearing mark and there is a slab tracking record, the slab tracking record is cleared, and information of the sub-slab is updated to the slab tracking record. The application can realize multiple thickening controls for one product, reduce the number of "transition materials", and increase the number of main rolling materials.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel rolling, and discloses a control method and device for thickening rolling of hot-rolled strip steel, a medium and electronic equipment. BACKGROUND

[0002] A conventional hot-rolling production organization is organized according to a rolling period, and the product thickness transition of each rolling period is from thick to thin. The purpose of such production organization is to meet the requirements of thin specifications on equipment state and control precision, and to explore the rolling mill level and shape control characteristics in advance for thick specifications, and to transition to thin specifications tentatively. Thick specifications without orders and which must be produced are referred to as "transition materials". Common thickness transitions are, for example, 3.0 mm→2.75 mm→2.5 mm→2.2 mm→2.0 mm→1.8 mm→1.5 mm.

[0003] With the development of hot-rolled products in the direction of high strength and ultra-thin, the demand for thin specifications from downstream users is increasing, and the order quantity of thick specifications is decreasing, which increases the quantity of "transition materials" in each rolling period.

[0004] In order to reduce "transition materials" and increase the quantity of thin specifications of main rolling materials, the technical scheme of the application proposes a control method for thickening rolling of hot-rolled strip steel, which can reduce the quantity of "transition materials" in the production process of hot-rolled strip steel to a certain extent, thereby increasing the production quantity of main rolling materials in a single rolling period to a certain extent. SUMMARY

[0005] The application relates to the technical field of steel rolling, and discloses a control method and device for thickening rolling of hot-rolled strip steel, a medium and electronic equipment. The application can reduce the quantity of "transition materials" in the production process of hot-rolled strip steel to a certain extent, thereby increasing the production quantity of main rolling materials in a single rolling period to a certain extent.

[0006] Other characteristics and advantages of the application will become apparent from the following detailed description, or will be learned by practice of the application.

[0007] According to a first aspect of the embodiments of the present application, a control method for thickening rolling of a hot-rolled strip steel is provided. The method comprises: obtaining a to-be-rolled slab, and dividing the to-be-rolled slab into a first sub-slab, a second sub-slab and a third sub-slab; giving the first sub-slab and the second sub-slab a non-shearing mark, and giving the third sub-slab a shearing mark; obtaining historical rolling parameters of a rolling mill, the historical rolling parameters being used to guide the rolling mill to perform rolling; for each sub-slab of each to-be-rolled slab, based on the historical rolling parameters, controlling the rolling mill to perform rolling, and updating the historical rolling parameters; when the sub-slab reaches a set position of a coiling section, judging whether the sub-slab carries the non-shearing mark; if the sub-slab carries the non-shearing mark and there is a slab tracking record, clearing the slab tracking record, and updating information of the sub-slab to the slab tracking record.

[0008] In an embodiment of the present application, based on the foregoing scheme, the method further comprises: giving the to-be-rolled slab a slab number, the slab number being used to identify a slab currently in a rolling state; and giving a sub-slab of the to-be-rolled slab a plan number, the plan number being used to identify a sub-slab currently in a rolling state.

[0009] In an embodiment of the present application, based on the foregoing scheme, the method further comprises: judging whether a strip steel corresponding to the to-be-rolled slab is subjected to shearing processing; if the strip steel corresponding to the to-be-rolled slab is subjected to shearing processing, updating a slab number of a slab currently in a rolling state; judging whether a strip steel corresponding to the sub-slab is subjected to coiling processing; and if the strip steel corresponding to the sub-slab is subjected to coiling processing, updating a plan number of a sub-slab currently in a rolling state.

[0010] In an embodiment of the present application, based on the foregoing scheme, the method further comprises: if the sub-slab carries the shearing mark, controlling a flying shear device to shear the sub-slab.

[0011] In an embodiment of the present application, based on the foregoing scheme, the method further comprises: if the sub-slab carries the non-shearing mark and there is no slab tracking record, updating information of the sub-slab to the slab tracking record until a next sub-slab reaches the set position of the coiling section.

[0012] In an embodiment of the present application, based on the foregoing scheme, the controlling, based on the historical rolling parameters, the rolling mill to perform rolling and updating the historical rolling parameters comprises: based on the historical rolling parameters, determining a target parameter required for the rolling mill to roll a strip steel corresponding to the sub-slab; based on the target parameter, controlling the rolling mill to roll the sub-slab, and taking the target parameter as a new historical rolling parameter.

[0013] In an embodiment of the present application, based on the foregoing scheme, the method further comprises: determining whether the strip corresponding to the sub-slab is a target strip; if the strip corresponding to the sub-slab is a target strip, updating the historical rolling parameters based on the rolling parameters corresponding to the sub-slab, and taking the updated historical rolling parameters as target rolling parameters; and controlling the rolling mill to roll a new slab to be rolled based on the target rolling parameters.

[0014] According to a second aspect of embodiments of the present application, a control device for variable-thickness rolling of hot-rolled strips is provided, the device comprising: a first acquisition unit configured to acquire a slab to be rolled and divide the slab to be rolled into a first sub-slab, a second sub-slab, and a third sub-slab; an assignment unit configured to assign a non-shear mark to the first sub-slab and the second sub-slab, and assign a shear mark to the third sub-slab; a second acquisition unit configured to acquire historical rolling parameters of a rolling mill, the historical rolling parameters being used to guide rolling of the rolling mill; a control unit configured to, for each sub-slab of each slab to be rolled, control the rolling mill to roll based on the historical rolling parameters, and update the historical rolling parameters; a determination unit configured to, when the sub-slab reaches a set position in a coiling zone, determine whether the sub-slab carries a non-shear mark; and a clearing unit configured to, if the sub-slab carries a non-shear mark and there is a slab tracking record, clear the slab tracking record, and update information of the sub-slab to the slab tracking record.

[0015] According to a third aspect of embodiments of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores at least one piece of program code, and the at least one piece of program code is loaded and executed by a processor to implement the control method for variable-thickness rolling of hot-rolled strips according to any one of the above embodiments.

[0016] According to a fourth aspect of embodiments of the present application, an electronic device is provided, which comprises one or more processors and one or more memories, and the one or more memories store at least one piece of program code, and the at least one piece of program code is loaded and executed by the one or more processors to implement the control method for variable-thickness rolling of hot-rolled strips according to any one of the above embodiments.

[0017] In the technical scheme provided in the present application, a to-be-rolled slab is obtained, and the to-be-rolled slab is divided into a first sub-slab, a second sub-slab and a third sub-slab, the first sub-slab and the second sub-slab are given a non-shearing mark, and the third sub-slab is given a shearing mark, a historical rolling parameter of a rolling mill is obtained, the historical rolling parameter is used to guide the rolling mill to roll, for each sub-slab of each to-be-rolled slab, based on the historical rolling parameter, the rolling mill is controlled to roll, and the historical rolling parameter is updated, when the sub-slab reaches a set position of a coiling area, it is judged whether the sub-slab carries a non-shearing mark, if the sub-slab carries a non-shearing mark and there is a slab tracking record, the slab tracking record is cleared, and information of the sub-slab is updated to the slab tracking record. The technical scheme provided in the present application can realize multiple thickening control of one product on a hot strip mill, and can coiling multiple thickness slabs corresponding to a strip in one steel coil, so as to reduce the number of "transition materials" to a certain extent, and then improve the production quantity of main rolling materials in one rolling period.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings incorporated into the specification and forming a part thereof illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0020] Figure 1 A flow chart of a control method of hot strip thickening rolling in an embodiment of the present application is shown;

[0021] Figure 2 A flow chart of a control method of hot strip thickening rolling in an embodiment of the present application is shown;

[0022] Figure 3 A block diagram of a control device of hot strip thickening rolling in an embodiment of the present application is shown;

[0023] Figure 4 A structural schematic diagram of a computer system of an electronic device suitable for implementing an embodiment of the present application is shown. DETAILED DESCRIPTION

[0024] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art.

[0025] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the

[0026] The flow charts shown in the drawings are merely examples and do not necessarily include all of the content and operations / steps, nor are they necessarily executed in the order described. For example, some operations / steps can be further broken down, and some operations / steps can be combined or partially combined, so the actual execution order can be changed according to actual conditions.

[0027] 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 the form of software, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0028] It should be noted that "multiple" referred to herein means two or more. The "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0029] 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 describe a specific order or sequence. It should be understood that the objects thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described.

[0030] The implementation details of the technical solutions of the embodiments of the application will be described in detail as follows:

[0031] Figure 1 A flow chart of a control method for hot rolling strip steel thickening rolling in the embodiments of the application is shown.

[0032] As shown in the figure, the control method of the hot rolling strip thickening rolling at least includes steps 110 to 160. Figure 1

[0033] The steps 110 to 160 will be described in detail as follows: Figure 1

[0034] In step 110, the to-be-rolled slab is obtained, and the to-be-rolled slab is divided into a first sub-slab, a second sub-slab and a third sub-slab.

[0035] In this application, the to-be-rolled slab can be set as a mother slab, and the mother slab is divided into three sub-slabs, i.e., the first sub-slab, the second sub-slab and the third sub-slab. The lengths of the first sub-slab, the second sub-slab and the third sub-slab can be set as the same slab length or different slab lengths, and the slab length can be set according to actual needs.

[0036] Continuing to refer to Figure 1 In step 120, the first sub-slab and the second sub-slab are given a non-shearing identification, and the third sub-slab is given a shearing identification.

[0037] In this application, before the to-be-rolled slab enters the rough rolling mill, the first sub-slab and the second sub-slab of the to-be-rolled slab can be set with a non-shearing identification by a PLC control system, the third sub-slab of the to-be-rolled slab is set with a shearing identification, and the theoretical roll diameter of the strip steel coil corresponding to the to-be-rolled slab can be set.

[0038] Continuing to refer to Figure 1 In step 130, the historical rolling parameters of the rolling mill are obtained, which are used to guide the rolling mill to roll.

[0039] In this application, the historical rolling parameters of the rolling mill can include the rolling parameters corresponding to the rolling of various thicknesses of strip steel by the rolling mill within the rolling mill roll period. The rolling parameters corresponding to the strip steel with large thickness can be taken as a reference value, and the rolling parameters corresponding to the strip steel with small thickness can be obtained by a certain degree of improvement. If the historical rolling parameters are empty, the rolling mill is controlled to roll based on the rolling parameters corresponding to the strip steel with the highest thickness.

[0040] Continuing to refer to Figure 1 In step 140, for each sub-slab of each to-be-rolled slab, the historical rolling parameters are used to control the rolling mill to roll, and the historical rolling parameters are updated.

[0041] Continuing to refer to Figure 1 ​​In step 150, it is judged whether the sub slab carries the non-cutting mark when the sub slab reaches the coiling interval setting position.

[0042] In the present application, the coiling interval setting position can be set according to actual needs.

[0043] With reference to the above description Figure 1 In step 160, if the sub slab carries the non-cutting mark and there is a slab tracking record, the slab tracking record is cleared and the information of the sub slab is updated to the slab tracking record.

[0044] In the present application, if the sub slab carries the non-cutting mark and there is a slab tracking record, it means that there is a sub slab being coiled or after the coiling process, and the coiler can only track one slab at a time. Therefore, the tracking record of the previous sub slab needs to be cleared first, and then the real-time tracking of the sub slab is performed. The tracking information in the slab tracking record at least includes the position and length of the sub slab in the coiling interval.

[0045] In an embodiment of the present application, the method further comprises: assigning a slab number to the to-be-rolled slab, the slab number being used to identify the slab currently in the rolling state; and assigning a plan number to the sub slab of the to-be-rolled slab, the plan number being used to identify the sub slab currently in the rolling state.

[0046] In the present application, each to-be-rolled slab is assigned a slab number, and each sub slab of the to-be-rolled slab is assigned a plan number. Each to-be-rolled slab is assigned three plan numbers.

[0047] For example, the slab number can be assigned to each to-be-rolled slab in a rolling period as a cycle, starting from natural number 1 according to the production sequence, and each natural number corresponds to a to-be-rolled slab. When a rolling period ends and a new rolling period starts, the slab number is assigned to each to-be-rolled slab again, starting from natural number 1. Alternatively, the slab number of the next to-be-rolled slab can be continuously assigned to the previous to-be-rolled slab.

[0048] For example, the plan number can be assigned to each sub slab of the to-be-rolled slab in the form of letters ABC or XYZ, A or X representing the first sub slab, B or Y representing the second sub slab, and C or Z representing the third sub slab.

[0049] In an embodiment of the present application, the method further comprises: judging whether the strip corresponding to the to-be-rolled slab is subjected to a cutting process; if the strip corresponding to the to-be-rolled slab is subjected to a cutting process, updating the slab number of the slab currently in the rolling state; judging whether the strip corresponding to the sub slab is subjected to a coiling process; and if the strip corresponding to the sub slab is subjected to a coiling process, updating the plan number of the sub slab currently in the rolling state.

[0050] In the present application, it is determined whether the strip corresponding to the to-be-rolled slab is subjected to shearing treatment; if the strip corresponding to the to-be-rolled slab is subjected to shearing treatment, the slab number of the slab currently in the rolling state is updated. For example, if the strip corresponding to the slab with the slab number 020 is subjected to shearing treatment, it is indicated that the slab number of the slab currently in the rolling state is 021, and the slab number of the slab currently in the rolling state is updated to 021.

[0051] In the present application, it is determined whether the strip corresponding to the sub-slab is subjected to coiling treatment; if the strip corresponding to the sub-slab is subjected to coiling treatment, the plan number of the sub-slab currently in the rolling state is updated. For example, if the strip corresponding to the sub-slab with the slab number 020 and the plan number X is subjected to coiling treatment, it is indicated that the slab number of the slab currently in the rolling state is 020 and the plan number is Y, and the plan number of the sub-slab currently in the rolling state is updated to Y.

[0052] In an embodiment of the present application, the method further comprises: if the sub-slab carries a shearing mark, controlling a flying shear device to shear the sub-slab.

[0053] In the present application, if the sub-slab carries a shearing mark, the flying shear device is controlled to shear the sub-slab, and the strip coil corresponding to the parent slab to which the sub-slab belongs can at most contain three kinds of strips with different thicknesses, so that at most three kinds of transition materials can be contained in one strip coil, thereby the number of transition material products generated in the process of transitioning from a high-thickness transition material to a low-thickness main rolling material can be minimized, and the number of main rolling materials in a single roll period can be increased to a certain extent.

[0054] In an embodiment of the present application, the method further comprises: if the sub-slab carries a non-shearing mark and there is no slab tracking record, updating the information of the sub-slab to the slab tracking record until the next sub-slab reaches the coiling interval setting position.

[0055] In the present application, if the sub-slab carries a non-shearing mark and there is no slab tracking record, it is indicated that the previous sub-slab is being subjected to shearing treatment or is after the shearing treatment, and the coiling machine can only track one slab at a time. After the previous sub-slab is subjected to shearing treatment, the computer control system will clear the tracking information in the slab tracking record, so that it is not necessary to clear the slab tracking record again, and the sub-slab can be directly tracked in real time until the next sub-slab reaches the coiling interval setting position.

[0056] In an embodiment of the present application, the controlling the rolling mill to roll based on the historical rolling parameters and updating the historical rolling parameters comprises: determining target parameters required for the rolling mill to roll the sub-slab corresponding to the strip based on the historical rolling parameters; controlling the rolling mill to roll the sub-slab based on the target parameters and taking the target parameters as new historical rolling parameters.

[0057] In the present application, for each sub-slab of each slab to be rolled, the historical rolling parameters are taken as reference values, the rolling parameters corresponding to a strip of a lower thickness grade are obtained by improving to a certain extent, the rolling mill is controlled to roll, and the rolling parameters corresponding to the strip of the lower thickness grade are taken as new historical rolling parameters.

[0058] In an embodiment of the present application, the method further comprises: judging whether the strip corresponding to the sub-slab is a target strip; if the strip corresponding to the sub-slab is a target strip, updating the historical rolling parameters based on the rolling parameters corresponding to the sub-slab, and taking the updated historical rolling parameters as target rolling parameters; and controlling the rolling mill to roll a new slab to be rolled based on the target rolling parameters.

[0059] In the present application, if the strip corresponding to the sub-slab is a target strip, the target strip can also be referred to as a main rolled material. The historical rolling parameters are taken as reference values, the rolling parameters corresponding to the target strip are obtained by improving to a certain extent, the rolling parameters corresponding to the target strip are taken as new historical rolling parameters, the new historical rolling parameters are taken as target rolling parameters, the rolling mill is controlled to roll a new slab to be rolled based on the target rolling parameters to obtain a main rolled material, and the historical rolling parameters can not be updated before the corresponding roll period ends, and the rolling mill can continue to use the historical rolling parameters for rolling.

[0060] In order to make the skilled in the art more easily understand the present application, the following will be described with reference to the accompanying drawings Figure 2 The present application will be described in detail with reference to a specific embodiment.

[0061] Figure 2 A flow chart of a control method of hot rolling strip thickening rolling in a specific embodiment of the present application is shown.

[0062] In the headless production line, a slab number is given to each slab before it enters the rough rolling mill, and each slab is divided into three sub-slabs, each of which is given a planned number, X, Y and Z, which correspond one-to-one to the slab number and the X, Y and Z sub-slabs.

[0063] With reference to Figure 2 The specific implementation is as follows.

[0064] Step 1: Determine whether the sub-slab is an actual sheared slab by judging whether it carries a sheared identification, and if so, perform shearing and other processing on the sub-slab according to the normal production process, and if not, update the actual sheared identification.

[0065] Step 2: Adjust the conventional rolling parameters of the rough rolling mill and the finishing rolling mill, and roll the subsequent sub-slabs according to the adjusted rolling parameters.

[0066] Step 3: When the next sub-slab is placed in the coiling interval tracking queue and the head of the next sub-slab reaches the coiling interval setting position, start the coiling cycle tracking and clearing logic, clear the tracking information of the previous sub-slab, simulate subsequent control events, track the position and length of the un-sheared point in the coiling area in real time, and the PLC control system performs special control actions related to HSS non-shearing. Whether the related equipment performs the related special control action is shown in Table 1.

[0067] Step 4: Determine whether the sub-slab is an actual sheared slab, and if so, perform shearing on the sub-slab, and execute Step 5, and if not, return to Step 3.

[0068] Step 5: Clear the coiling interval tracking queue until a new slab enters the coiling interval for tracking.

[0069] Step 6: Merge and coiling the plurality of sub-slabs.

[0070]

[0071] Table 1

[0072] In one or more technical solutions provided in the embodiments of the present application, at least the following technical effects or advantages are achieved:

[0073] The technical scheme provided in the application can realize multiple thickness control of one product on a headless hot rolling production line, thereby reducing the number of "transition materials" to the greatest extent, increasing the number of main rolling materials in a single roll period, and having considerable economic value.

[0074] The technical scheme provided in the application can track multiple sub-slabs in a cycle and can clear the tracking records of the sub-slabs by starting the winding cycle tracking and clearing logic.

[0075] The following describes the device embodiment of the application, which can be used to execute the control method of the hot rolling strip thickness rolling in the first aspect of the above-mentioned embodiments of the application. For details not disclosed in the device embodiment of the application, refer to the above-mentioned embodiments of the control method of the hot rolling strip thickness rolling in the first aspect of the application.

[0076] Figure 3 A block diagram of the control device of the hot rolling strip thickness rolling in the embodiment of the application is shown.

[0077] As shown in Figure 3 The control device 300 of the hot rolling strip thickness rolling in the embodiment of the application includes a first acquisition unit 301, an assignment unit 302, a second acquisition unit 303, a control unit 304, a judgment unit 305, and a clearing unit 306.

[0078] The first acquisition unit 301 is used to acquire a to-be-rolled slab and divide the to-be-rolled slab into a first sub-slab, a second sub-slab, and a third sub-slab. The assignment unit 302 is used to assign a non-cutting mark to the first sub-slab and the second sub-slab and assign a cutting mark to the third sub-slab. The second acquisition unit 303 is used to acquire historical rolling parameters of a rolling mill, which are used to guide the rolling mill to roll. The control unit 304 is used to control the rolling mill to roll based on the historical rolling parameters for each sub-slab of each to-be-rolled slab and update the historical rolling parameters. The judgment unit 305 is used to judge whether the sub-slab carries a non-cutting mark when the sub-slab reaches a set position of a coiling section. The clearing unit 306 is used to clear a slab tracking record if the sub-slab carries a non-cutting mark and the slab tracking record exists and update the information of the sub-slab to the slab tracking record.

[0079] In some embodiments of the application, based on the foregoing scheme, the device further includes a first assignment unit used to assign a slab number to the to-be-rolled slab, which is used to identify a slab currently in a rolling state; and a plan number to the sub-slab of the to-be-rolled slab, which is used to identify a sub-slab currently in a rolling state.

[0080] In some embodiments of the present application, based on the foregoing scheme, the device further comprises a first updating unit configured to determine whether the strip corresponding to the to-be-rolled slab is subjected to shearing; if the strip corresponding to the to-be-rolled slab is subjected to shearing, update the slab number currently being rolled; determine whether the strip corresponding to the sub-slab is subjected to coiling; and if the strip corresponding to the sub-slab is subjected to coiling, update the planned number of the sub-slab currently being rolled.

[0081] In some embodiments of the present application, based on the foregoing scheme, the device further comprises a first manipulation unit configured to control the flying shear device to shear the sub-slab if the sub-slab carries a shearing mark.

[0082] In some embodiments of the present application, based on the foregoing scheme, the device further comprises a second updating unit configured to update the information of the sub-slab to the slab tracking record if the sub-slab carries a non-shearing mark and there is no slab tracking record, until the next sub-slab reaches the coiling interval setting position.

[0083] In some embodiments of the present application, based on the foregoing scheme, the control unit 304 is configured to: determine a target parameter required for the rolling mill to roll the strip corresponding to the sub-slab based on the historical rolling parameter; control the rolling mill to roll the sub-slab based on the target parameter, and take the target parameter as a new historical rolling parameter.

[0084] In some embodiments of the present application, based on the foregoing scheme, the device further comprises a second manipulation unit configured to determine whether the strip corresponding to the sub-slab is a target strip; if the strip corresponding to the sub-slab is a target strip, update the historical rolling parameter based on the rolling parameter corresponding to the sub-slab, and take the updated historical rolling parameter as a target rolling parameter; and control the rolling mill to roll a new to-be-rolled slab based on the target rolling parameter.

[0085] The present application also provides a computer program product, which comprises computer instructions stored in a computer readable storage medium and adapted to be read and executed by a processor to enable a computer device having the processor to perform the control method of the hot-rolled strip variable-thickness rolling as described in any of the above embodiments.

[0086] The present application also provides a computer readable medium, which can be included in an electronic device or exist separately without being assembled into an electronic device. The computer readable storage medium stores at least one program code, which is loaded and executed by a processor to implement the control method of the hot-rolled strip variable-thickness rolling as described in any of the above embodiments.

[0087] The application also provides an electronic device including one or more processors and one or more memories having at least one program code stored therein, the at least one program code being loaded and executed by the one or more processors to implement the control method of the hot strip thickening rolling according to any one of the above-mentioned embodiments.

[0088] Figure 4 A structural schematic diagram of a computer system of an electronic device suitable for implementing the embodiments of the application is shown.

[0089] It should be noted that, Figure 4 The computer system 400 of the electronic device shown is only an example and should not impose any limitation on the functions and use range of the embodiments of the application.

[0090] As Figure 4 shown, the computer system 400 includes a central processing unit (CPU) 401 which can perform various appropriate actions and processes according to programs stored in a read-only memory (ROM) 402 or programs loaded from a storage portion 408 into a random access memory (RAM) 403, such as performing the methods described in the above-mentioned embodiments. In the RAM 403, various programs and data required for system operation are also stored. The CPU 401, the ROM 402, and the RAM 403 are connected to each other through a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0091] The following components are connected to the I / O interface 405: an input portion 406 including a keyboard, a mouse, and the like; an output portion 407 including a display such as a cathode ray tube (CRT), a liquid crystal display (LCD), and the like, and a speaker, and the like; a storage portion 408 including a hard disk, and the like; and a communication portion 409 including a network interface card such as a LAN (Local Area Network) card, a modem, and the like. The communication portion 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as necessary. A removable recording medium 411 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, and the like is attached to the drive 410 as necessary, so that a computer program read therefrom is installed in the storage portion 408 as necessary.

[0092] In particular, the processes described above with reference to the flow charts can be implemented as a computer software program in accordance with the embodiments of the present application. For example, an embodiment of the present application includes a computer program product comprising a computer program carried on a computer readable medium, the computer program containing program code for executing the methods illustrated by the flow charts. In such an embodiment, the computer program can be downloaded and installed from a network by the communication section 409, and / or installed from the removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, various functions defined in the system of the present application are executed.

[0093] It should be noted that the computer readable medium shown in the embodiments of the present application can be a computer readable signal medium or a computer readable storage medium or any combination of the two. The computer readable storage medium may, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or apparatus. In the present application, the computer readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, which carries computer readable program code. Such a propagated data signal can take many forms, including but not limited to an electromagnetic signal, an optical signal or any suitable combination of the above. The computer readable signal medium can also be any computer readable medium other than the computer readable storage medium, which can send, propagate or transmit a program for use by or in conjunction with an instruction execution system, device or apparatus. The program code contained on the computer readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, or the like, or any suitable combination of the above.

[0094] The computer program product of the present application can be a storage medium or a computer program product that stores instructions which can be executed by one or more processors to cause the processor or processors to carry out actions according to the present application. The computer program product can be a non-transitory computer readable medium having stored thereon computer program instructions. The computer program instructions can be executed by one or more processors to cause the processor or processors to carry out actions according to the present application. The computer program product can be a computer readable medium having stored thereon instructions which, when executed by one or more processors, cause the processor or processors to carry out actions according to the present application.

[0095] The units described in the embodiments of the present application can be implemented by software, or by hardware, or by a combination of software and hardware. The units described can be located in a single device or distributed over several devices.

[0096] It should be noted that although several modules or units are mentioned in the foregoing detailed description in relation to the device for action execution, such division into modules or units is not mandatory. Indeed, according to an embodiment of the application, features and functions of two or more modules or units described above can be embodied in a single module or unit. Conversely, a feature or function of one module or unit described above can be split into several modules or units.

[0097] From the above description of the embodiments, it is easy for a person skilled in the art to understand that the example 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. The software product can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash disk, a mobile hard disk, or the like) or a network, and includes a number of instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to perform the methods according to the embodiments of the present application.

[0098] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. It is intended that the present application cover any and all variations of the present application which come within the scope of the claims and their equivalents. It is intended that the present application encompass all technological equivalents of the disclosed technology.

[0099] Furthermore, the above-described diagrams are merely schematic illustrations of the processes included in the method according to the exemplary embodiments of the present application, and are not intended for limiting purposes. It is readily understood that the processes shown in the above-described diagrams do not indicate or limit the time sequence of these processes. In addition, it is also readily understood that these processes can be executed, for example, synchronously or asynchronously in a plurality of modules.

[0100] It is to be understood that the present application is not limited to the precise construction described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A method of controlling the thickness increase of a hot rolled strip, characterized in that, The method comprises: obtaining a to-be-rolled slab, and dividing the to-be-rolled slab into a first sub-slab, a second sub-slab and a third sub-slab; imparting a non-shearing mark to the first sub-slab and the second sub-slab, and imparting a shearing mark to the third sub-slab; obtaining historical rolling parameters of a rolling mill, the historical rolling parameters being used to guide the rolling mill to perform rolling; for each sub-slab of each to-be-rolled slab, based on the historical rolling parameters, controlling the rolling mill to perform rolling, and updating the historical rolling parameters; when the sub-slab reaches a set position of a coiling section, judging whether the sub-slab carries a non-shearing mark; if the sub-slab carries a non-shearing mark and there is a slab tracking record, clearing the slab tracking record, and updating information of the sub-slab to the slab tracking record.

2. The method of claim 1, wherein, The method further comprises: imparting a slab number to the to-be-rolled slab, the slab number being used to identify a slab currently in a rolling state; imparting a plan number to a sub-slab of the to-be-rolled slab, the plan number being used to identify a sub-slab currently in a rolling state.

3. The method of claim 2, wherein, The method further comprises: judging whether a strip corresponding to the to-be-rolled slab is subjected to shearing treatment; if the strip corresponding to the to-be-rolled slab is subjected to shearing treatment, updating a slab number of a slab currently in a rolling state; judging whether a strip corresponding to the sub-slab is subjected to coiling treatment; if the strip corresponding to the sub-slab is subjected to coiling treatment, updating a plan number of a sub-slab currently in a rolling state.

4. The method of claim 1, wherein, The method further comprises: if the sub-slab carries a shearing mark, controlling a flying shear device to shear the sub-slab.

5. The method of claim 1, wherein, The method further comprises: if the sub-slab carries a non-shearing mark and there is no slab tracking record, updating information of the sub-slab to the slab tracking record until a next sub-slab reaches the set position of the coiling section.

6. The method of claim 1, wherein, The controlling, based on the historical rolling parameters, of the rolling mill to perform rolling, and the updating of the historical rolling parameters, comprises: based on the historical rolling parameters, determining a target parameter required by the rolling mill to roll a strip corresponding to the sub-slab; based on the target parameter, controlling the rolling mill to roll the sub-slab, and taking the target parameter as a new historical rolling parameter.

7. The method of claim 1, wherein, The method further comprises: judging whether a strip corresponding to the sub-slab is a target strip; if the strip corresponding to the sub-slab is a target strip, based on a rolling parameter corresponding to the sub-slab, updating the historical rolling parameters, and taking the updated historical rolling parameters as target rolling parameters; based on the target rolling parameters, controlling the rolling mill to roll a new to-be-rolled slab.

8. A control device for the thickening rolling of a hot-rolled strip steel, characterized by The device comprises: a first obtaining unit configured to obtain a to-be-rolled slab, and divide the to-be-rolled slab into a first sub-slab, a second sub-slab and a third sub-slab; an imparting unit configured to impart a non-shearing mark to the first sub-slab and the second sub-slab, and impart a shearing mark to the third sub-slab; a second obtaining unit configured to obtain historical rolling parameters of a rolling mill, the historical rolling parameters being used to guide the rolling mill to perform rolling; The control unit is configured to control the rolling mill to roll based on the historical rolling parameters for each sub-slab of each slab to be rolled, and update the historical rolling parameters. The judgment unit is configured to judge whether the sub-slab carries the non-shear mark when the sub-slab reaches the set position of the coiling section. The clearing unit is configured to clear the slab tracking record if the sub-slab carries the non-shear mark and the slab tracking record exists, and update the information of the sub-slab to the slab tracking record.

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 the processor to implement the control method for the variable thickness rolling of the hot-rolled strip steel according to any one of claims 1 to 7.

10. An electronic device, comprising: The electronic device comprises one or more processors and one or more memories, and 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 control method for the variable thickness rolling of the hot-rolled strip steel according to any one of claims 1 to 7.

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