Cold rolling method, device, equipment, medium and program product
By obtaining the thickness and rolling force data of the cold-rolled material and using a preset function to determine the target rolling force, the problem of inaccurate rolling force is solved and the rolling effect and stability are improved.
Patent Information
- Application Number
- CN202510875850.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-09-16
AI Technical Summary
In the existing technology, the rolling force is not determined accurately enough, which affects the rolling effect.
By obtaining the thickness data and rolling force data of the cold-rolled material, the target rolling force is determined using a preset function, and rolling operations are performed based on the target rolling force until the yield and rolling stability conditions are met.
Accurately determine the rolling force, improve the rolling effect, and increase the yield rate and rolling stability.
Smart Images
Figure CN120644492A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of cold rolling technology, and in particular to a cold rolling method, device, equipment, medium and program product. Background Art
[0002] With the rapid development of the economy and the improvement of science and technology, the quality requirements for steel in the fields of aerospace, deep-sea exploration, and national defense and military are gradually increasing. In order to improve the uniformity and stability of steel quality, the combination of rolling mill equipment and computer technology is usually used to ensure the accuracy of steel.
[0003] Rolling force is a crucial parameter in the rolling process and plays a central role in rolling models. Its prediction accuracy significantly impacts the cold rolling yield and rolling stability. However, in actual production processes, it is difficult to accurately determine rolling force, which in turn affects rolling performance. Summary of the Invention
[0004] The present application provides a cold rolling method, device, equipment, medium and program product to solve the defect of inaccurate rolling force determination in the prior art, and can accurately determine the rolling force and improve the rolling effect.
[0005] In a first aspect, the present application provides a cold rolling method, comprising:
[0006] Obtaining a cold-rolled material to be rolled, performing at least one rolling operation on the cold-rolled material until a rolling effect obtained by the rolling operation meets a rolling end condition, thereby completing the cold rolling;
[0007] Wherein, the rolling operation includes:
[0008] Determining first rolling data corresponding to the current rolling operation; wherein the first rolling data corresponding to the first rolling operation is initial rolling data;
[0009] determining a target rolling force corresponding to a current rolling operation based on the first rolling data;
[0010] The cold rolling material is rolled based on the target rolling force to obtain second rolling data corresponding to the current rolling operation. If it is determined based on the second rolling data that the rolling end condition is not met, the target rolling data is determined and the target rolling data is used as the first rolling data corresponding to the next rolling operation.
[0011] Optionally, the initial rolling data includes multiple sets of initial thickness data obtained from the head of the cold-rolled incoming material and the initial rolling force corresponding to each set of initial thickness data;
[0012] Determining target rolling data includes:
[0013] A plurality of sets of target thickness data of the position where the cold rolled material is currently to be rolled and a first rolling force corresponding to each set of target thickness data are used as the target rolling data.
[0014] Optionally, the first rolling data includes multiple sets of thickness data and rolling force data corresponding to each set of thickness data;
[0015] The determining, based on the first rolling data, a target rolling force corresponding to the current rolling operation includes:
[0016] Obtaining a rolling effect based on rolling force data corresponding to each set of thickness data;
[0017] Based on the rolling effect, the target rolling force is determined from the rolling force data corresponding to each set of thickness data.
[0018] Optionally, the second rolling data includes the cold rolling material yield rate and rolling stability.
[0019] Optionally, the rolling end condition is that the cold rolling material yield rate is greater than a preset yield rate or the rolling stability is greater than a preset stability.
[0020] Optionally, the cold rolling method further comprises:
[0021] Each set of thickness data is substituted into a preset function to obtain rolling force data corresponding to each set of thickness data; the preset function is determined based on dynamic deformation resistance, friction coefficient and working roll parameters.
[0022] In a second aspect, the present application further provides a cold rolling device, comprising:
[0023] A rolling module is used to obtain cold-rolled incoming materials to be rolled, perform at least one rolling operation on the cold-rolled incoming materials, until the rolling effect obtained by the rolling operation meets the rolling end condition, and the cold rolling is completed; wherein, the rolling operation includes: determining the first rolling data corresponding to the current rolling operation; wherein, the first rolling data corresponding to the first rolling operation is the initial rolling data; based on the first rolling data, determining the target rolling force corresponding to the current rolling operation; rolling the cold-rolled incoming materials based on the target rolling force to obtain the second rolling data corresponding to the current rolling operation; if it is determined based on the second rolling data that the rolling end condition is not met, determining the target rolling data, and using the target rolling data as the first rolling data corresponding to the next rolling operation.
[0024] In a third aspect, the present application further provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in the first aspect when executing the computer program.
[0025] In a fourth aspect, the present application further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which implements the method described in the first aspect when executed by a processor.
[0026] In a fifth aspect, the present application further provides a computer program product, comprising a computer program, which implements the method described in the first aspect when executed by a processor.
[0027] The cold rolling method, device, equipment, medium and program product provided in the present application perform at least one determination of the first rolling data, and then determine the target rolling force based on the first rolling data, and perform rolling operations based on the target rolling force, which can ensure the accuracy of the target rolling force in the entire rolling process from starting the vehicle to the end of rolling, thereby improving the rolling effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0029] Figure 1 1 is a schematic flow chart of the cold rolling method provided in an embodiment of the present application;
[0030] Figure 2 Schematic diagram of the structure of the cold rolling device provided in the embodiment of the present application;
[0031] Figure 3 It is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION
[0032] This application considers that the inlet thickness of the cold-rolled material plays an indispensable role in determining the rolling force. However, the inlet thickness of the cold-rolled material varies from thick to thin at the beginning and end, making it a real-time dynamic variable, which makes it difficult to accurately determine the rolling force and affects the rolling effect. Based on this, this application proposes a new cold rolling method.
[0033] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.
[0034] Figure 1Schematic diagram of the cold rolling method provided in the embodiment of the present application. Figure 1 The embodiment of the present application provides a cold rolling method, the execution subject of which may be an electronic device, for example, a controller. The following description will be made using the controller as an example. The method may include:
[0035] Step 110: Obtain the cold-rolled incoming material to be rolled, perform at least one rolling operation on the cold-rolled incoming material, until the rolling effect obtained by the rolling operation meets the rolling end condition, and the cold rolling is completed; wherein, the rolling operation includes: determining the first rolling data corresponding to the current rolling operation; wherein, the first rolling data corresponding to the first rolling operation is the initial rolling data; based on the first rolling data, determine the target rolling force corresponding to the current rolling operation; based on the target rolling force, roll the cold-rolled incoming material to obtain the second rolling data corresponding to the current rolling operation; if it is determined based on the second rolling data that the rolling end condition is not met, determine the target rolling data, and use the target rolling data as the first rolling data corresponding to the next rolling operation.
[0036] Specifically, when the controller performs a rolling operation on the cold-rolled incoming material, it is necessary to first determine the first rolling data corresponding to the current rolling operation. The first rolling data includes thickness data related to the target rolling force. If rolling is performed based on the target rolling force determined by the first rolling data, the rolling effect corresponding to the obtained second rolling data meets the rolling end condition, and the cold rolling is completed; if the rolling effect corresponding to the obtained second rolling data does not meet the rolling end condition, the target rolling data is determined, and the target rolling data is used as the first rolling data corresponding to the next rolling operation. Based on the first rolling data at this time, the target rolling force is re-determined and rolling is performed until the rolling end condition is met.
[0037] The cold rolling method provided in the embodiment of the present application determines the first rolling data at least once, then determines the target rolling force based on the first rolling data, and performs rolling operations based on the target rolling force. This can ensure the accuracy of the target rolling force throughout the entire rolling process from starting the vehicle to the end of rolling, thereby improving the rolling effect.
[0038] In one embodiment, the initial rolling data includes multiple sets of initial thickness data obtained from the head of the cold-rolled material and the initial rolling force corresponding to each set of initial thickness data; determining the target rolling data includes: taking multiple sets of target thickness data of the current position of the cold-rolled material to be rolled and the first rolling force corresponding to each set of target thickness data as the target rolling data.
[0039] The initial rolling data is the first rolling data corresponding to the first rolling operation. At this time, the rolling operation has just begun, and the head of the cold-rolled material is the current position to be rolled. The initial rolling data includes multiple sets of initial thickness data obtained from the head of the cold-rolled material and the initial rolling force corresponding to each set of initial thickness data, so as to take into account the problem of uneven thickness of the cold-rolled material. Specifically, the multiple sets of initial thickness data can be obtained by a thickness detector, i.e., a thickness gauge. Similarly, when the rolling end conditions are not met, the target rolling data must be determined. At this time, multiple sets of target thickness data of the current position to be rolled of the cold-rolled material are obtained, and the multiple sets of target thickness data of the current position to be rolled and the first rolling force corresponding to each set of target thickness data are used as the target rolling data.
[0040] The cold rolling method provided in the embodiment of the present application takes multiple sets of thickness data and corresponding rolling force data of each position to be rolled as the first rolling data, and then determines the target rolling force based on the first rolling data, and performs rolling based on the target rolling force. Taking into account the problem that the entrance thickness is not a quantitative quantity but a real-time dynamic variable due to the sometimes thick and sometimes thin head and tail of the cold-rolled incoming material, which makes it difficult to accurately determine the rolling force, the current entrance thickness is used as the basis for determining the target rolling force. The method is simple, convenient, easy to operate, can accurately determine the target rolling force, and improve the rolling effect.
[0041] In one embodiment, the first rolling data includes multiple sets of thickness data and rolling force data corresponding to each set of thickness data; based on the first rolling data, the target rolling force corresponding to the current rolling operation is determined, including: obtaining the rolling effect of rolling based on the rolling force data corresponding to each set of thickness data; based on the rolling effect, determining the target rolling force from the rolling force data corresponding to each set of thickness data.
[0042] The first rolling data includes multiple sets of thickness data and rolling force data corresponding to each set of thickness data. The controller can obtain the rolling force data corresponding to each set of thickness data to measure the rolling effect, and use the rolling force data corresponding to the best rolling effect as the target rolling force.
[0043] The cold rolling method provided in the embodiment of the present application determines the target rolling force from the rolling force data corresponding to each set of thickness data, which can accurately determine the target rolling force and improve the rolling effect.
[0044] In one embodiment, the second rolling data includes the cold rolling material yield rate and rolling stability.
[0045] Furthermore, in one embodiment, the rolling end condition is that the cold rolling material yield rate is greater than a preset yield rate or the rolling stability is greater than a preset stability.
[0046] The cold rolling method provided in the embodiment of the present application evaluates the rolling effect through the yield rate of cold rolled incoming materials and the rolling stability, and uses the condition that the yield rate of cold rolled incoming materials is greater than the preset yield rate or the rolling stability is greater than the preset stability as the rolling end condition. It can accurately determine the target rolling force, effectively reduce the head and tail lengths of the strip, improve the yield rate of cold rolled incoming materials, and improve the thickness hit rate of the starting strip in one pass; it can also ensure the preset accuracy of the roll gap and improve the stability of the starting rolling.
[0047] In one embodiment, the cold rolling method further includes: substituting each set of thickness data into a preset function to obtain rolling force data corresponding to each set of thickness data; the preset function is determined based on dynamic deformation resistance, friction coefficient and working roll parameters.
[0048] Specifically, the preset function is as follows:
[0049]
[0050] Among them, P is the rolling force data; b is the width of the cold rolled material; k p is the dynamic deformation resistance; t e is the tension coefficient; D p is the stress state coefficient; R ′ is the flattening radius of the working roll; H is the actual inlet thickness, that is, each set of thickness data; h is the outlet thickness; t b is the unit post tension; t f is the unit front tension; ε is the pass reduction rate; μ is the friction coefficient; R is the radius of the working roll; c h is a constant value of 0.000214, Calculate, where v is Poisson's ratio; E is the elastic modulus of the working roll.
[0051] The working roll parameters may include the working roll flattening radius, the working roll radius and the working roll elastic modulus.
[0052] The cold rolling method provided in the embodiment of the present application determines a preset function through dynamic deformation resistance, friction coefficient and working roll parameters, thereby obtaining rolling force data, and then determining the target rolling force, which can improve the rolling effect.
[0053] The cold rolling device provided in the present application is described below. The cold rolling device described below and the cold rolling method described above can be referenced to each other.
[0054] Figure 2 Schematic diagram of the structure of the cold rolling device provided in the embodiment of the present application. Figure 2 The cold rolling device provided in the embodiment of the present application may include:
[0055] The rolling module 210 is used to obtain the cold-rolled material to be rolled, perform at least one rolling operation on the cold-rolled material, until the rolling effect obtained by the rolling operation meets the rolling end condition, and the cold rolling is completed; wherein, the rolling operation includes: determining the first rolling data corresponding to the current rolling operation; wherein, the first rolling data corresponding to the first rolling operation is the initial rolling data; based on the first rolling data, determining the target rolling force corresponding to the current rolling operation; rolling the cold-rolled material based on the target rolling force to obtain the second rolling data corresponding to the current rolling operation, if it is determined based on the second rolling data that the rolling end condition is not met, determine the target rolling data, and use the target rolling data as the first rolling data corresponding to the next rolling operation.
[0056] The cold rolling device provided in the embodiment of the present application determines the first rolling data at least once, and then determines the target rolling force based on the first rolling data, and performs rolling operations based on the target rolling force. This can ensure the accuracy of the target rolling force in the entire rolling process from starting the vehicle to the end of rolling, thereby improving the rolling effect.
[0057] Specifically, the above-mentioned cold rolling device provided in the embodiment of the present application can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the controller, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.
[0058] Figure 3 Schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 3 As shown, the electronic device may include: a processor 310, a communication interface 320, a memory 330 and a communication bus 340, wherein the processor 310, the communication interface 320, and the memory 330 communicate with each other via the communication bus 340. The processor 310 may call the logic instructions in the memory 330 to execute the cold rolling method, for example, including:
[0059] Obtaining a cold-rolled material to be rolled, performing at least one rolling operation on the cold-rolled material until a rolling effect obtained by the rolling operation meets a rolling end condition, thereby completing the cold rolling;
[0060] Wherein, the rolling operation includes:
[0061] Determining first rolling data corresponding to the current rolling operation; wherein the first rolling data corresponding to the first rolling operation is initial rolling data;
[0062] determining a target rolling force corresponding to a current rolling operation based on the first rolling data;
[0063] The cold rolling material is rolled based on the target rolling force to obtain second rolling data corresponding to the current rolling operation. If it is determined based on the second rolling data that the rolling end condition is not met, the target rolling data is determined and the target rolling data is used as the first rolling data corresponding to the next rolling operation.
[0064] In addition, the logic instructions in the above-mentioned memory 330 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
[0065] On the other hand, the present application also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the steps of the cold rolling method provided by the above methods, for example, including:
[0066] Obtaining a cold-rolled material to be rolled, performing at least one rolling operation on the cold-rolled material until a rolling effect obtained by the rolling operation meets a rolling end condition, thereby completing the cold rolling;
[0067] Wherein, the rolling operation includes:
[0068] Determining first rolling data corresponding to the current rolling operation; wherein the first rolling data corresponding to the first rolling operation is initial rolling data;
[0069] determining a target rolling force corresponding to a current rolling operation based on the first rolling data;
[0070] The cold rolling material is rolled based on the target rolling force to obtain second rolling data corresponding to the current rolling operation. If it is determined based on the second rolling data that the rolling end condition is not met, the target rolling data is determined and the target rolling data is used as the first rolling data corresponding to the next rolling operation.
[0071] In another aspect, the present application further provides a computer program product, comprising a computer program, which may be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can perform the steps of the cold rolling method provided by the above methods, for example, including:
[0072] Obtaining a cold-rolled material to be rolled, performing at least one rolling operation on the cold-rolled material until a rolling effect obtained by the rolling operation meets a rolling end condition, thereby completing the cold rolling;
[0073] Wherein, the rolling operation includes:
[0074] Determining first rolling data corresponding to the current rolling operation; wherein the first rolling data corresponding to the first rolling operation is initial rolling data;
[0075] determining a target rolling force corresponding to a current rolling operation based on the first rolling data;
[0076] The cold rolling material is rolled based on the target rolling force to obtain second rolling data corresponding to the current rolling operation. If it is determined based on the second rolling data that the rolling end condition is not met, the target rolling data is determined and the target rolling data is used as the first rolling data corresponding to the next rolling operation.
[0077] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.
[0078] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.
[0079] It should also be noted that the terms "first," "second," and the like in the embodiments of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more.
[0080] In the embodiments of this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.
[0081] In the embodiments of the present application, "determine B based on A" means that the factor A must be considered when determining B. It is not limited to "B can be determined based on A alone", and should also include: "determine B based on A and C", "determine B based on A, C and E", "determine C based on A, and further determine B based on C", etc. It can also include taking A as a condition for determining B, for example, "when A meets the first condition, use the first method to determine B"; for example, "when A meets the second condition, determine B", etc.; for example, "when A meets the third condition, determine B based on the first parameter", etc. Of course, it can also be a condition that takes A as a factor in determining B, for example, "when A meets the first condition, use the first method to determine C, and further determine B based on C", etc.
[0082] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.
[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A cold rolling method, characterized in that: include: Obtaining a cold-rolled material to be rolled, performing at least one rolling operation on the cold-rolled material until a rolling effect obtained by the rolling operation meets a rolling end condition, thereby completing the cold rolling; Wherein, the rolling operation includes: Determining first rolling data corresponding to the current rolling operation; wherein the first rolling data corresponding to the first rolling operation is initial rolling data; determining a target rolling force corresponding to a current rolling operation based on the first rolling data; The cold rolling material is rolled based on the target rolling force to obtain second rolling data corresponding to the current rolling operation. If it is determined based on the second rolling data that the rolling end condition is not met, the target rolling data is determined and the target rolling data is used as the first rolling data corresponding to the next rolling operation.
2. The cold rolling method according to claim 1, characterized in that The initial rolling data includes multiple sets of initial thickness data obtained from the head of the cold-rolled material and the initial rolling force corresponding to each set of initial thickness data; Determining target rolling data includes: A plurality of sets of target thickness data of the position where the cold rolled material is currently to be rolled and a first rolling force corresponding to each set of target thickness data are used as the target rolling data.
3. The cold rolling method according to claim 1, characterized in that The first rolling data includes multiple sets of thickness data and rolling force data corresponding to each set of thickness data; The determining, based on the first rolling data, a target rolling force corresponding to the current rolling operation includes: Obtaining a rolling effect based on rolling force data corresponding to each set of thickness data; Based on the rolling effect, the target rolling force is determined from the rolling force data corresponding to each set of thickness data.
4. The cold rolling method according to claim 1, characterized in that The second rolling data includes the cold rolling material yield rate and rolling stability.
5. The cold rolling method according to claim 4, characterized in that The rolling end condition is that the cold rolling material yield rate is greater than a preset yield rate or the rolling stability is greater than a preset stability.
6. The cold rolling method according to claim 3, characterized in that Also includes: Substitute each set of thickness data into a preset function to obtain the rolling force data corresponding to each set of thickness data; The preset function is determined based on the dynamic deformation resistance, the friction coefficient and the working roll parameters.
7. A cold rolling device, characterized in that: include: A rolling module is used to obtain cold-rolled incoming materials to be rolled, perform at least one rolling operation on the cold-rolled incoming materials, until the rolling effect obtained by the rolling operation meets the rolling end condition, and the cold rolling is completed; wherein, the rolling operation includes: determining the first rolling data corresponding to the current rolling operation; wherein, the first rolling data corresponding to the first rolling operation is the initial rolling data; based on the first rolling data, determining the target rolling force corresponding to the current rolling operation; rolling the cold-rolled incoming materials based on the target rolling force to obtain the second rolling data corresponding to the current rolling operation; if it is determined based on the second rolling data that the rolling end condition is not met, determining the target rolling data, and using the target rolling data as the first rolling data corresponding to the next rolling operation.
8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the cold rolling method according to any one of claims 1 to 6 is implemented.
9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the cold rolling method according to any one of claims 1 to 6 is implemented.
10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the cold rolling method according to any one of claims 1 to 6 is implemented.