Rolling device and current control method, device, electronic equipment and storage medium

Abstract

The application provides a rolling device and a current control method and device, electronic equipment and a storage medium, and relates to the field of metal plate strip rolling equipment. The rolling device comprises a rack and at least one conductive roller set. The conductive roller set is arranged on the rack and is used for clamping and conducting current to a material to be rolled. The conductive roller set comprises at least two conductive rollers. Each conductive roller is divided into a plurality of conductive sections insulated from each other along the axial direction of the conductive roller. The conductive sections of the two conductive rollers are correspondingly arranged. A plurality of current adjusting elements are arranged in one-to-one correspondence with the plurality of conductive sections. A pulse power source is electrically connected with the at least one conductive roller set and the plurality of current adjusting elements. A plurality of temperature sensing elements are arranged in one-to-one correspondence with the plurality of conductive sections. A controller is in communication connection with the plurality of current adjusting elements and the plurality of temperature sensing elements. The controller is used for controlling the plurality of current adjusting elements to respectively adjust the currents of the plurality of conductive sections based on a plurality of temperature signals acquired by the plurality of temperature sensing elements.

Description

Technical Field

[0001] This application relates to the field of metal sheet and strip rolling equipment, and in particular to a rolling apparatus and current control method, device, electronic equipment and storage medium. Background Technology

[0002] Electrical pulse-assisted rolling technology utilizes the electroplastic effect generated when high-density pulsed current passes through deformed metal, effectively reducing rolling force and improving material plasticity, showing great potential in the production of ultra-thin strips of difficult-to-deform metals. Currently, a typical implementation of this technology uses the rolling mill rolls or separate conductive rolls as electrodes to introduce pulsed current into the strip in the rolling deformation zone, forming a circuit.

[0003] Due to factors such as rapid heat dissipation at the strip edges, the skin effect of current, and uneven contact resistance, the current distribution along the strip width is uneven. Consequently, the actual current density and Joule heat generated in the strip edge region are often lower than in the center, weakening the electroplastic effect at the edges. Improvements in related technologies have mostly focused on optimizing overall electrode contact or adopting voltage equalization designs, but they still cannot achieve dynamic and differentiated current compensation for different transverse positions of the strip. Summary of the Invention

[0004] In view of this, this application provides a rolling apparatus and a current control method, device, electronic device and storage medium, which realizes compensation for the current flowing through different transverse positions of the rolled material.

[0005] In a first aspect, embodiments of this application provide a rolling apparatus, comprising: frame; At least one conductive roller assembly is disposed on the frame, the conductive roller assembly is used to clamp and conduct current to the material being rolled, the conductive roller assembly includes at least two conductive rollers, each of the conductive rollers is divided into a plurality of mutually insulated conductive sections along the axial direction of the conductive roller, and the conductive sections of the two conductive rollers are arranged correspondingly. Multiple current regulating elements are provided, and each of the multiple current regulating elements is configured to correspond one-to-one with one of the multiple conductive sections; A pulse power supply is electrically connected to the plurality of current regulating elements; Multiple temperature sensing elements are provided, and each of the multiple temperature sensing elements is configured in a one-to-one correspondence with one of the multiple conductive sections; The controller is communicatively connected to the plurality of current regulating elements and the plurality of temperature sensing elements. The controller is used to control the plurality of current regulating elements to regulate the current passing through the plurality of conductive sections based on the plurality of temperature signals acquired by the plurality of temperature sensing elements.

[0006] Secondly, embodiments of this application provide a current control method applied to a controller of a rolling mill as described in any one of the first aspects above, the current control method comprising: The conductive roller is powered based on a pre-configured current control model; Multiple temperature signals of the rolled material in multiple conductive sections are acquired, temperature deviations are determined based on the multiple temperature signals and the current control model, and the current in the multiple conductive sections is adjusted by multiple current regulating elements in the rolling device to compensate for the temperature deviations.

[0007] Thirdly, embodiments of this application provide a current control device applied to a rolling apparatus as described in any one of the first aspects above, the current control device comprising: The data acquisition module is used to supply power to the conductive roller based on a pre-configured current control model and acquire multiple temperature signals of the rolled material in multiple conductive sections. The data processing module is used to determine the temperature deviation based on the multiple temperature signals and the current control model, and to adjust the current of the multiple conductive sections through multiple current regulating elements in the rolling device to compensate for the temperature deviation.

[0008] Fourthly, embodiments of this application provide an electronic device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the second aspect.

[0009] Fifthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method as described in the second aspect.

[0010] In a sixth aspect, embodiments of this application provide a chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the second aspect.

[0011] In a seventh aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the method as described in the second aspect.

[0012] Thus, the rolling apparatus provided in this application, by dividing the conductive roller into independent conductive sections and supplying them with independent power, enables the rolling apparatus to actively inject more current into the edge regions with fast heat dissipation and high resistance to compensate for their energy loss. This allows the current density and electrothermal effect to be uniformly distributed along the axial direction of the conductive roller, reducing the possibility of edge cracking during alloy rolling and improving the quality of the obtained alloy sheet shape. At the same time, the uniform electroplastic effect also makes the deformation capacity of the edge and center of the rolled material tend to be consistent, making the plastic flow more coordinated, thereby obtaining a straighter sheet shape.

[0013] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A partial structural schematic diagram of a rolling apparatus according to an embodiment of this application is shown; Figure 2 A flowchart illustrating a current control method according to an embodiment of this application is shown; Figure 3 A structural block diagram of a current control device according to an embodiment of this application is shown; Figure 4 A structural block diagram of an electronic device according to an embodiment of this application is shown.

[0015] Explanation of reference numerals in the attached figures: 10 - Conductive roller, 20 - Conductive section, 201 - Insulating separator. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] The terms "first," "second," etc., used in this application's specification are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, a first object can be one or more. Furthermore, in the specification, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects have an "or" relationship.

[0018] The rolling apparatus provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0019] This application provides a rolling apparatus that can be modified from an existing roll mill. In the following embodiments, the process of rolling 1J22 alloy into a plate shape using a Sendzimir 20-roll mill is used as an example. Figure 1 As shown, the rolling apparatus includes a frame and at least one set of conductive rolls. The at least one set of conductive rolls is disposed on the frame and is used to clamp and conduct current to the material being rolled. The set of conductive rolls includes at least two conductive rolls 10, each conductive roll 10 being divided along its axial direction into multiple mutually insulated conductive sections 20, with the conductive sections 20 of the two conductive rolls 10 correspondingly arranged.

[0020] The rolling apparatus includes multiple current regulating elements. Each current regulating element is configured to correspond one-to-one with a multiple conductive section 20.

[0021] The rolling mill includes a pulse power supply. The pulse power supply is electrically connected to multiple current regulating elements.

[0022] Specifically, after dividing the conductive roller 10 of the rolling device into multiple mutually insulated conductive sections 20, a current regulating element is installed on each conductive section 20, and each current regulating element is electrically connected to a pulse power supply to supply power to the conductive roller 10. Thus, while ensuring the normal operation of the conductive roller group, the current flowing through each conductive section 20 in the conductive roller group can be precisely adjusted and controlled by each current regulating element.

[0023] The rolling apparatus includes multiple temperature sensing elements. Each temperature sensing element is configured to correspond one-to-one with a multiple conductive section 20.

[0024] The rolling apparatus includes a controller. The controller is communicatively connected to multiple current regulating elements and multiple temperature sensing elements. The controller is used to control the multiple current regulating elements to regulate the current passing through multiple conductive sections 20 based on multiple temperature signals acquired by the multiple temperature sensing elements.

[0025] Specifically, multiple temperature sensing elements acquire temperature signals for their corresponding conductive sections 20 and transmit these signals to the controller. The controller can then generate control signals based on these temperature signals. Each current regulating element can independently receive the control signals from the controller and adjust the temperature of its respective conductive section 20 accordingly.

[0026] Thus, the rolling apparatus provided in this application, by dividing the conductive roller 10 into independent conductive sections 20 and supplying them with independent power, enables the rolling apparatus to actively inject more current into the edge regions with fast heat dissipation and high resistance to compensate for their energy loss. This allows the current density and electrothermal effect to be uniformly distributed along the axial direction of the conductive roller 10, reducing the possibility of edge cracking when rolling difficult-to-deform alloys such as 1J22 alloy, and improving the quality of the obtained alloy sheet shape. At the same time, the uniform electroplastic effect can also make the deformation capacity of the edge and middle of the rolled material tend to be consistent, making the plastic flow more coordinated, thereby obtaining a straighter sheet shape.

[0027] In some embodiments, the temperature sensing element is a non-contact infrared thermometer and / or a thermocouple disposed inside the conductive roller 10.

[0028] A non-contact infrared thermometer can be installed 50mm directly above each conductive section 20, with the temperature measurement area aligned with the contact area between the rolled material and the conductive section 20. Thermocouples are embedded in the roller surface of each conductive section 20 of the conductive roller 10. Armored thermocouples can be selected to ensure insulation between the thermocouples and each conductive section 20.

[0029] In the above embodiments, a non-contact infrared thermometer is installed directly above each conductive section 20 and aligned with the contact area, allowing for direct and rapid acquisition of the surface temperature of the material in contact with the roll surface. This avoids wear and signal delay caused by contact measurement and is suitable for dynamic, high-temperature rolling environments. Meanwhile, thermocouples embedded in the roll surface and employing armored insulation structures can directly and stably sense temperature changes within the conductive section 20 itself, making them particularly suitable for accurate monitoring of the temperature inside or near the surface of the roll. Both temperature measurement methods provide comprehensive and accurate temperature feedback to the controller, enabling independent and precise adjustment of the current in each section. The temperature sensing element enhances the system's real-time compensation capability for uneven temperature distribution, further suppressing the tendency for cracking caused by edge overcooling or overheating. It also ensures that the electrothermal and electroplastic effects are uniformly distributed along the roll width, ultimately effectively improving the flatness and overall quality of the rolled sheet of difficult-to-deform alloys.

[0030] The non-contact infrared thermometer and / or thermocouples installed inside the conductive roll 10 enable the rolling device to achieve high-precision, zoned temperature monitoring while improving the reliability of temperature detection and reducing the interference of temperature detection elements on the rolling process.

[0031] In some embodiments, the rolling apparatus further includes an insulating divider. The insulating divider 201 is disposed on the conductive roller 10 to divide the conductive roller 10 into a plurality of mutually insulated conductive sections 20, and the insulating divider 201 is made of ceramic material and / or polymer composite insulating material.

[0032] The insulating separator 201 is embedded in the conductive roller 10, and the insulating separator 201 and the conductive roller 10 are in close contact. The surface of the insulating separator 201 and the conductive roller 10 are kept flush to ensure the rolling effect of the rolling device on the rolled material. At the same time, the surface of the insulating separator 201 can be treated with micro-arc oxidation or plasma spraying to improve the high temperature resistance, electrolytic corrosion resistance and wear resistance of the insulating separator 201, thereby extending the overall service life of the conductive roller 10.

[0033] In the above embodiments, the insulating divider 201 divides the conductive roller 10 into multiple mutually insulated conductive sections 20. Its excellent insulation performance ensures strict electrical isolation between each conductive section 20, laying a solid foundation for subsequent precise temperature-based control of the current in each section. The flush alignment of the insulating divider 201 with the surface of the conductive roller 10 ensures continuous and smooth contact between the sheet material surfaces during rolling, preventing unevenness on the surface of the conductive roller 10 caused by the insulating divider 201. This, in turn, avoids scratches or uneven thickness in the rolled strip, directly maintaining the rolling forming quality. The insulating divider 201, with its specially treated surface, exhibits enhanced high-temperature resistance, electrolytic corrosion resistance, and wear resistance. It effectively resists the synergistic erosion caused by high temperatures, mechanical friction, and current during rolling, reducing maintenance frequency and extending the service life of the conductive roller 10 and even the rolling mill. This ensures the stability of the rolling mill and the economy of production during long-term operation.

[0034] Please refer to Figure 2 This application also provides a current control method, which is applied to the controller of the rolling mill provided in any of the above embodiments. Therefore, the executing entity of this current control method can be the controller in the rolling mill. The current control method includes: Step 101: The controller supplies power to the conductive roller based on a pre-configured current control model.

[0035] The pre-configured current control model in the controller is a trained gradient distribution model. Multiple sets of basic parameters of the rolled material and rolling process parameters are input into the initial gradient distribution model to train it. This allows the temperature threshold and initial current parameters of each conductive section of the conductive roller to be determined during the rolling process when the process parameters of the rolled material are specified. The controller then supplies power to each conductive section of the conductive roller based on the initial current parameters. The basic parameters of the rolled material may include the target strip width, resistivity, etc., while the rolling process parameters include current data, temperature data, etc.

[0036] Step 102: The controller acquires multiple temperature signals of the rolled material in multiple conductive sections, determines the temperature deviation based on the multiple temperature signals and the current control model, and adjusts the current in multiple conductive sections through multiple current regulating elements in the rolling device to compensate for the temperature deviation.

[0037] Due to differences in ambient temperature or the specific performance of the rolling equipment, when the current in each conductive section of the conductive roll reaches the initial current parameter, it cannot be guaranteed that the temperature of each conductive section will reach the optimal temperature in the rolling process. Therefore, the controller can acquire the temperature signal of each conductive section at this time, and then determine the temperature deviation based on the acquired temperature signal and the temperature threshold determined by the current control model. Based on the temperature deviation, the current flowing through each conductive section is fine-tuned so that the roller surface of the conductive roll can reach the optimal rolling temperature determined by the current control model based on the basic parameters of the rolled material.

[0038] Thus, the current control method provided in the above embodiments first utilizes a pre-trained current control model to quickly determine the initial current setting and target temperature threshold of each conductive section based on the basic parameters of the rolled material and the rolling process parameters. During the rolling process, the controller continuously acquires the real-time temperature signal of each zone and compares it with the optimal temperature set by the model. By calculating the temperature deviation and driving the corresponding current regulating element for precise compensation, it effectively overcomes the problem of uneven temperature distribution caused by environmental fluctuations, differences in equipment performance, or changes in local material properties. This ensures that the roll surface temperature can maintain a relatively optimal temperature in the rolling process, thereby keeping the electrothermal and electroplastic effects highly uniform in the width direction of the plate, thus suppressing edge crack defects and coordinating plastic flow. In addition, the synergistic effect of the current control model and the current regulating element also improves the adaptability and robustness of the rolling device to different materials and process conditions. While ensuring high consistency and flatness of the plate shape quality, it also enhances the stability and intelligence level of the production process.

[0039] In some embodiments, step 101 can be implemented via step 1011: Step 1011: Based on the preset rolling process parameters and the basic parameters of the rolled material, the controller determines the initial current value flowing through each conductive section through the current density distribution function configured by the current control model.

[0040] By inputting a large amount of historical data into the initial gradient distribution model, the model is trained to obtain the current control model. The current control model also includes a current density distribution function, which, along with parameters of the rolled material and process parameters, determines the initial current value for each conductive section. The current density distribution function is:

[0041] Where I(x) is the current density at position x, I center denoted as the central reference current density, W as the target width of the strip, k as the edge compensation coefficient, and m as the distribution index.

[0042] For example, for 1J22 alloy, the central reference current density I can be preset. center =100A / mm 2 The edge compensation coefficient k = 50A / mm 2 The distribution index m=2, and the target width of the strip is set by the staff in the controller according to the actual production needs.

[0043] The current density distribution function is based on the central reference current density and introduces the edge compensation coefficient and distribution index. This allows for the automatic generation of a current density distribution curve along the axial direction of the conductive roll that conforms to the optimal process experience, based on the target width of the strip. Controlling the current in each conductive section of the conductive roll based on the current density distribution curve can effectively alleviate the problem of temperature drop and cracking in the edge area due to rapid heat dissipation and difficulty in deformation during the rolling process. This ensures that more current is accurately guided to the edge in the initial stage, so that the electrothermal and electroplastic effects can be evenly distributed on the surface of the conductive roll, enhancing the adaptability and reproducibility of the process to different materials and specifications.

[0044] In some embodiments, step 102 can be implemented by steps 1021 to 1023: Step 1021: Based on the current rolling process parameters, the controller determines the target current of each conductive section in the current rolling stage through the current control model, and determines the target temperature of each conductive section based on the target current.

[0045] The controller determines the current rolling stage of the material being rolled based on the changes in current and temperature data in each conductive section of the current conductive roller. Then, it determines the target current that each conductive section should reach in the current rolling stage through the current control model. The controller can also map the target current to the optimal temperature of the rolling stage corresponding to the material being rolled in the historical rolling data based on historical rolling data, and determine the optimal temperature as the target temperature of the conductive section.

[0046] Step 1022: The controller determines the temperature deviation based on multiple temperature signals and multiple target temperatures, and determines the current compensation amount based on the temperature deviation.

[0047] In some embodiments, step 1022 can be implemented by step 1022a: Step 1022a: The controller compares multiple temperature signals of multiple conductive segments with the target temperature of the corresponding conductive segment. When the temperature signal of any conductive segment is less than the corresponding target temperature, the controller determines the current compensation amount to be positive based on the current control model, and / or when the temperature signal of any conductive segment is greater than the corresponding target temperature, the controller determines the current compensation amount to be negative based on the current control model.

[0048] The controller is also equipped with a PID control algorithm. The PID control algorithm can compare the temperature signal in the corresponding conductive section with the target temperature to obtain the temperature deviation, and determine the current compensation amount for each conductive section based on the temperature deviation and the temperature-current change relationship pre-configured in the controller.

[0049] In the above embodiments, the controller can determine the magnitude, duration, and trend of temperature deviation based on the PID control algorithm, and then determine the current compensation amount, thereby avoiding overshoot or oscillation during the current regulation process, thus improving the stability and accuracy of temperature control. In addition, it also improves the rolling device's adaptability to temperature fluctuations caused by changes in environment, materials, or equipment conditions during the rolling process, further ensuring that the temperature of each conductive section remains stable in the optimal process range for a long time, and improving the uniformity of electroplastic effect and the consistency of plate shape quality.

[0050] Step 1023: The controller controls the current regulating element to adjust the current in multiple conductive sections based on the current compensation amount in order to compensate for the temperature deviation.

[0051] For example, in order to obtain a 1J22 strip with a target width of 100 mm and a target thickness of 0.05 mm, the initial current gradient is set as follows: the current density in the left and right side sections is 150 A / mm. 2 The central section has a current of 100A / mm. 2 The target temperature range is 180-220℃. After the rolling mill starts operating, the infrared thermometer provides real-time temperature feedback at a certain moment: 190℃ for the left zone, 210℃ for the middle zone, and 185℃ for the right zone. The PLC control algorithm in the controller detects that the temperature in the right zone is too low, and therefore fine-tunes the output current density of the corresponding current module for the right zone to 155A / mm². 2 After several adjustment cycles, the temperature in the left, middle, and right zones was stabilized within the range of 205±5℃.

[0052] The current control method provided in the above embodiments can determine the target current of each conductive section based on the current control model and determine the optimal target temperature of each conductive section based on historical process parameters. This achieves synchronous adaptation between the control benchmark and the process progress, avoiding the drawback of a single fixed parameter being unable to match the needs of multi-stage rolling. The controller can also drive the current regulating element to perform precise compensation, thereby quickly converging and stabilizing the actual temperature within the corresponding temperature range. This improves the rolling device's ability to cope with complex disturbances during rolling and ensures that the electrothermal and electroplastic effects are highly uniform and stable along the plate width throughout the entire rolling process, fundamentally guaranteeing the high quality and high consistency of the rolled plate shape of difficult-to-deform alloys, and significantly enhancing the intelligence and repeatability of the process.

[0053] Furthermore, as a specific implementation of the above-described current control method, this application provides a current control device 300. For example... Figure 3 As shown, the current control device 300 includes a data acquisition module 301 and a data processing module 302.

[0054] The data acquisition module 301 is used to supply power to the conductive roller based on a pre-configured current control model and acquire multiple temperature signals of the rolled material in multiple conductive sections.

[0055] The data processing module 302 is used to determine the temperature deviation based on multiple temperature signals and a current control model, and to adjust the current in multiple conductive sections through multiple current regulating elements in the rolling device to compensate for the temperature deviation.

[0056] In some embodiments, the data acquisition module 301 is used to determine the initial current value flowing through each conductive section based on preset rolling process parameters and basic parameters of the rolled material, through the current density distribution function configured by the current control model.

[0057] In some embodiments, the data processing module 302 is used to determine the target current of each conductive section in the current rolling stage based on the current rolling process parameters, and the controller determines multiple target temperatures of the conductive section based on the target current.

[0058] The data processing module 302 is used to determine the temperature deviation based on multiple temperature signals and multiple target temperatures, and to determine the current compensation amount based on the current control model and the temperature deviation.

[0059] The data processing module 302 is used to control the current regulating element based on the current compensation amount to adjust the current in multiple conductive sections in order to compensate for temperature deviation.

[0060] In some embodiments, the data processing module 302 is used to compare multiple temperature signals of multiple conductive segments with the target temperature of the corresponding conductive segment, and when the temperature signal of any conductive segment is less than the corresponding target temperature, determine the current compensation amount as positive based on the current control model, and / or when the temperature signal of any conductive segment is greater than the corresponding target temperature, determine the current compensation amount as negative based on the current control model.

[0061] The current control device 300 in this application embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the specific type of device.

[0062] The current control device provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method implementation examples will not be described again here to avoid repetition.

[0063] This application also provides an electronic device, such as... Figure 4 As shown, the electronic device 400 includes a processor 401 and a memory 402. The memory 402 stores a program or instructions that can run on the processor 401. When the program or instructions are executed by the processor 401, they implement the various steps of the above-described current control method embodiment and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0064] The memory 402 can be used to store software programs and various data. The memory 402 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 402 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 402 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0065] Processor 401 may include one or more processing units; optionally, processor 401 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 401.

[0066] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described current control method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0067] This application also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described current control method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0068] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0069] This application also provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the current control method embodiments described above, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0070] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0071] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A rolling apparatus, characterized in that, include: frame; At least one conductive roller assembly is disposed on the frame, the conductive roller assembly is used to clamp and conduct current to the material being rolled, the conductive roller assembly includes at least two conductive rollers, each of the conductive rollers is divided into a plurality of mutually insulated conductive sections along the axial direction of the conductive roller, and the conductive sections of the two conductive rollers are arranged correspondingly. Multiple current regulating elements are provided, and each of the multiple current regulating elements is configured to correspond one-to-one with one of the multiple conductive sections; A pulse power supply is electrically connected to the at least one conductive roller group and the plurality of current regulating elements; Multiple temperature sensing elements are provided, and each of the multiple temperature sensing elements is configured in a one-to-one correspondence with one of the multiple conductive sections; The controller is communicatively connected to the plurality of current regulating elements and the plurality of temperature sensing elements. The controller is used to control the plurality of current regulating elements to regulate the current passing through the plurality of conductive sections based on the plurality of temperature signals acquired by the plurality of temperature sensing elements.

2. The rolling apparatus according to claim 1, characterized in that, The temperature sensing element is a non-contact infrared thermometer and / or a thermocouple disposed inside the conductive roller.

3. The rolling apparatus according to claim 1, characterized in that, The rolling apparatus further includes: An insulating divider is disposed on the conductive roller to divide the conductive roller into multiple mutually insulated conductive sections, wherein the insulating divider is made of ceramic material and / or polymer composite insulating material.

4. A current control method, characterized in that, The current control method, applied to a controller in a rolling mill as described in any one of claims 1 to 3, comprises: The conductive roller is powered based on a pre-configured current control model; Multiple temperature signals of the rolled material in multiple conductive sections are acquired, temperature deviations are determined based on the multiple temperature signals and the current control model, and the current in the multiple conductive sections is adjusted by multiple current regulating elements in the rolling device to compensate for the temperature deviations.

5. The current control method according to claim 4, characterized in that, The method of supplying power to the conductive roller based on a pre-configured current control model includes: Based on the preset rolling process parameters and the basic parameters of the rolled material, the initial current value flowing through each conductive section is determined by the current density distribution function configured by the current control model.

6. The current control method according to claim 5, characterized in that, The process of determining the temperature deviation based on the multiple temperature signals and the current control model, and adjusting the current in the multiple conductive sections using multiple current regulating elements in the rolling device to compensate for the temperature deviation, includes: Based on the current rolling process parameters, the target current of each conductive section in the current rolling stage is determined by the current control model, and the target temperature of each conductive section is determined based on the target current. The temperature deviation is determined based on the multiple temperature signals and the multiple target temperatures, and the current compensation amount is determined based on the temperature deviation. Based on the current compensation amount, the current regulating element is controlled to adjust the current in the plurality of conductive sections to compensate for the temperature deviation.

7. The current control method according to claim 6, characterized in that, Determining the temperature deviation based on the plurality of temperature signals and the plurality of target temperatures includes: The multiple temperature signals of the multiple conductive segments are compared with the target temperature of the corresponding conductive segment. When the temperature signal of any conductive segment is less than the target temperature, the current compensation amount is determined to be positive based on the current control model, and / or when the temperature signal of any conductive segment is greater than the target temperature, the current compensation amount is determined to be negative based on the current control model.

8. A current control device, characterized in that, The current control device, applied to the rolling apparatus as described in any one of claims 1 to 3, comprises: The data acquisition module is used to supply power to the conductive roller based on a pre-configured current control model and acquire multiple temperature signals of the rolled material in multiple conductive sections. The data processing module is used to determine the temperature deviation based on the multiple temperature signals and the current control model, and to adjust the current of the multiple conductive sections through multiple current regulating elements in the rolling device to compensate for the temperature deviation.

9. An electronic device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that run on the processor, the program or instructions being executed by the processor to implement the steps of the current control method as described in any one of claims 4 to 7.

10. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or instructions are executed by the processor, they implement the steps of the current control method as described in any one of claims 4 to 7.

Images