Method, device and equipment for production control of an electrical steel production line
Patent Information
- Application Number
- CN202611257626.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-19
- Publication Date
- 2026-11-03
AI Technical Summary
Existing electrical steel production processes cannot effectively reduce high-frequency iron loss, and cannot meet the requirements of new energy vehicle drive motors for high magnetic induction, high frequency, low iron loss, and high strength.
By controlling the processing parameters of the hot rolling mill, normalizing and pickling mill, and continuous annealing mill, including furnace temperature, normalizing temperature, and annealing temperature, the processing of strip steel is precisely controlled, eliminating magnetic domain wall movement resistance and internal stress, ensuring that the grain size is greater than the plate thickness, and eliminating mixed crystals.
It significantly reduces the high-frequency iron loss of electrical steel, meeting the requirements of new energy vehicle drive motors for high frequency and low iron loss.
Smart Images
Figure CN123027402A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of electrical steel production technology, and particularly relates to a production control method, device and equipment for an electrical steel production line. Background Technology
[0002] Drive motors are core components of new energy vehicles, and their development trend is towards high speed, high power density, high efficiency, low noise, and high safety. The requirements for non-oriented electrical steel are high magnetic induction, high frequency, low iron loss, and high strength. Looking at the material choices of new energy vehicle drive motor users in recent years, the thickness of mainstream materials has further decreased. Many manufacturers are focusing on ultra-thin products of 0.15mm-0.20mm, or even 0.10mm, in the development of next-generation motors, and are demanding even lower high-frequency iron loss in the next generation of non-oriented electrical steel for new energy vehicles. As customers' requirements for ultra-thin non-oriented electrical steel for new energy vehicles become increasingly stringent, existing conventional methods and approaches to reducing high-frequency iron loss are no longer fully applicable and cannot meet the demands. Therefore, excessive high-frequency iron loss in electrical steel is a technical problem that urgently needs to be solved in current processes. Summary of the Invention
[0003] This invention provides a production control method, apparatus, and equipment for an electrical steel production line, which solves the technical problem of excessive high-frequency iron loss in electrical steel.
[0004] In a first aspect, embodiments of the present invention provide a production control method for an electrical steel production line. The electrical steel production line is used to process strip steel into electrical steel. The production line includes a hot rolling mill, a normalizing and pickling mill downstream of the hot rolling mill, a cold rolling mill downstream of the normalizing and pickling mill, and a continuous annealing mill downstream of the cold rolling mill. The method includes: when processing the strip steel in the heating furnace of the hot rolling mill, controlling the hot rolling exit temperature of the strip steel in the heating furnace to be greater than 1050°C and the furnace time to be greater than 90 minutes; when processing the strip steel in the normalizing and pickling mill... During processing, the normalizing temperature of the strip in the normalizing and pickling unit is controlled to be greater than 880℃; the second thickness of the strip after rolling in the cold rolling mill is obtained; when processing the strip in the heating section of the continuous annealing unit, the annealing temperature of the strip in the heating section is controlled based on the second thickness; wherein, the larger the second thickness, the higher the annealing temperature; if the second thickness is 0.1mm, the annealing temperature of the strip in the heating section is 970℃~1000℃; if the second thickness is 0.15mm, the annealing temperature of the strip in the heating section is 1000℃~1030℃.
[0005] In conjunction with the first aspect of the present invention, in some embodiments, the method further includes: obtaining a first thickness of the strip after rolling in the hot rolling mill; and controlling the normalizing temperature of the strip in the normalizing and pickling mill based on the first thickness when the strip is processed in the normalizing and pickling mill; wherein, the larger the first thickness, the larger the normalizing temperature.
[0006] In conjunction with the first aspect of the present invention, in some embodiments, if the first thickness is 1.8 mm to 2.0 mm, the normalizing temperature of the strip in the normalizing and pickling unit is 880°C to 980°C; if the first thickness is 2.0 mm to 2.2 mm, the normalizing temperature of the strip in the normalizing and pickling unit is 900°C to 1000°C; if the first thickness is 2.2 mm to 2.4 mm, the normalizing temperature of the strip in the normalizing and pickling unit is 920°C to 1020°C.
[0007] In conjunction with the first aspect of the invention, in some embodiments, the method further includes: when the strip is processed in the cooling section of the continuous annealing unit, controlling the outlet temperature of the strip in the cooling section based on the second thickness; wherein, the greater the second thickness, the lower the outlet temperature of the strip in the cooling section.
[0008] In conjunction with the first aspect of the present invention, in some embodiments, if the second thickness is 0.1 mm, the outlet temperature of the strip in the cooling section is 520°C to 550°C; if the second thickness is 0.15 mm, the outlet temperature of the strip in the cooling section is 400°C to 430°C.
[0009] In conjunction with the first aspect of the present invention, in some embodiments, the thickness of the electrical steel is less than or equal to 0.15 mm.
[0010] Secondly, embodiments of the present invention provide a production control device for an electrical steel production line. The electrical steel production line is used to process strip steel into electrical steel. The electrical steel production line includes a hot rolling mill, a normalizing and pickling mill downstream of the hot rolling mill, a cold rolling mill downstream of the normalizing and pickling mill, and a continuous annealing mill downstream of the cold rolling mill. The device includes: a first control unit, used to control the hot rolling exit temperature of the strip steel in the heating furnace of the hot rolling mill to be greater than 1050°C and the furnace time to be greater than 90 minutes when the strip steel is processed in the heating furnace; a second control unit, used to... When the normalizing and pickling unit processes the strip steel, the normalizing temperature of the strip steel in the normalizing and pickling unit is controlled to be greater than 880°C; the second thickness of the strip steel after rolling in the cold rolling mill is obtained; when the strip steel is processed in the heating section of the continuous annealing unit, the annealing temperature of the strip steel in the heating section is controlled based on the second thickness; wherein, the larger the second thickness, the higher the annealing temperature; if the second thickness is 0.1 mm, the annealing temperature of the strip steel in the heating section is 970°C to 1000°C; if the second thickness is 0.15 mm, the annealing temperature of the strip steel in the heating section is 1000°C to 1030°C.
[0011] Thirdly, embodiments of the present invention provide an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in any of the first aspects.
[0012] The one or more technical solutions provided in the embodiments of the present invention achieve at least the following technical effects or advantages: In this embodiment of the invention, when processing strip steel in the heating furnace of the hot rolling mill, the hot rolling exit temperature of the strip steel is controlled to be greater than 1050°C and the furnace time is greater than 90 minutes; when processing strip steel in the normalizing and pickling unit, the normalizing temperature of the strip steel in the normalizing and pickling unit is controlled to be greater than 880°C; the second thickness of the strip steel after rolling in the cold rolling mill is obtained; when processing strip steel in the heating section of the continuous annealing unit, the annealing temperature of the strip steel in the heating section is controlled based on the second thickness; wherein, the larger the second thickness, the higher the annealing temperature; if the second thickness is 0.1 mm, the annealing temperature of the strip steel in the heating section is 970°C to 1000°C; if the second thickness is 0.15 mm, the annealing temperature of the strip steel in the heating section is 1000°C to 1030°C. By controlling the hot-rolling exit temperature and furnace time, the fine, pinned magnetic domain nano-precipitates in the steel can be completely dissolved back into the matrix, eliminating the source of hysteresis loss at high frequencies and directly reducing the resistance to domain wall movement, thus significantly reducing high-frequency iron loss. By controlling the normalization temperature, the precipitates dissolved back into the matrix in the preceding hot-rolling furnace can be transformed into large, harmless particles that do not pin magnetic domains. Simultaneously, the hot-rolled structure is homogenized, and internal stress is eliminated, reducing hysteresis loss under high-frequency magnetic fields at its source. By precisely controlling the annealing temperature in the continuous annealing heating section in conjunction with the strip thickness, it is ensured that the grain size of ultra-thin specifications is greater than the plate thickness, while eliminating mixed crystals. Therefore, the high-frequency iron loss of electrical steel is ultimately reduced. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a flowchart of the production control method for the electrical steel production line in an embodiment of the present invention; Figure 2 This is a functional block diagram of the production control device for the electrical steel production line in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electronic device in an embodiment of the present invention. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0016] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.
[0017] This invention provides a production control method for an electrical steel production line. The electrical steel production line is used to process strip steel into electrical steel. The production line includes a hot rolling mill, a normalizing and pickling mill downstream of the hot rolling mill, a cold rolling mill downstream of the normalizing and pickling mill, and a continuous annealing mill downstream of the cold rolling mill. (Reference) Figure 1 As shown, the method includes the following steps S101 to S104: S101: When processing strip steel in the heating furnace of the hot rolling mill, the hot rolling exit temperature of the strip steel in the heating furnace shall be controlled to be greater than 1050℃ and the furnace time shall be greater than 90min.
[0018] It should be noted that by controlling the hot rolling temperature of the strip steel in the heating furnace to be greater than 1050℃ and the furnace time to be greater than 90min, the fine nano-precipitates that originally pinned magnetic domains in the steel can be completely dissolved back into the matrix, eliminating the source of hysteresis loss at high frequencies from the source, directly reducing the resistance to magnetic domain wall movement, and thus significantly reducing high-frequency iron loss.
[0019] S102: When processing strip steel in the normalizing and pickling unit, the normalizing temperature of the strip steel in the normalizing and pickling unit shall be controlled to be greater than 880℃.
[0020] It should be noted that by controlling the normalization temperature, the precipitates that have dissolved back into the matrix in the preceding hot rolling furnace can be transformed into large, harmless particles that do not pin magnetic domains. At the same time, the hot rolling structure is uniform and internal stress is eliminated, thereby reducing hysteresis loss under high-frequency magnetic field from the source and ultimately reducing the high-frequency iron loss of electrical steel.
[0021] In some embodiments, the production control method for an electrical steel production line further includes: obtaining the first thickness of the strip after rolling in a hot rolling mill; and controlling the normalizing temperature of the strip in a normalizing and pickling mill based on the first thickness when the strip is processed in a normalizing and pickling mill; wherein the larger the first thickness, the larger the normalizing temperature.
[0022] In some embodiments, if the first thickness is 1.8 mm to 2.0 mm, the normalizing temperature of the strip in the normalizing and pickling unit is 880°C to 980°C; if the first thickness is 2.0 mm to 2.2 mm, the normalizing temperature of the strip in the normalizing and pickling unit is 900°C to 1000°C; if the first thickness is 2.2 mm to 2.4 mm, the normalizing temperature of the strip in the normalizing and pickling unit is 920°C to 1020°C.
[0023] S103: Obtain the second thickness of the strip after it has been rolled in the cold rolling mill.
[0024] S104: When processing strip steel in the heating section of the continuous annealing unit, the annealing temperature of the strip steel in the heating section is controlled based on the second thickness; wherein, the larger the second thickness, the higher the annealing temperature; if the second thickness is 0.1mm, the annealing temperature of the strip steel in the heating section is 970℃~1000℃; if the second thickness is 0.15mm, the annealing temperature of the strip steel in the heating section is 1000℃~1030℃.
[0025] It should be noted that the annealing temperature of the strip in the heating section, 970℃~1000℃ can be obtained by increasing the temperature from 940℃~975℃, and 1000℃-1030℃ can be obtained by increasing the temperature from 975℃~1000℃.
[0026] It should be noted that by precisely controlling the annealing temperature in conjunction with the strip thickness within the continuous annealing heating section, the grain size of ultra-thin strips is ensured to be larger than the strip thickness, while simultaneously eliminating mixed grains. High temperatures provide a strong driving force for grain boundary migration, promoting the full and uniform growth of recrystallized grains. Increased grain size effectively reduces the number of grain boundaries per unit volume. Grain boundaries are the primary obstacles to magnetic domain movement; reducing the number of grain boundaries directly reduces hysteresis losses under high-frequency magnetic fields, ultimately lowering the high-frequency iron loss of electrical steel.
[0027] In some embodiments, the production control method for the electrical steel production line further includes: when processing the strip steel in the cooling section of the continuous annealing unit, controlling the outlet temperature of the strip steel in the cooling section based on a second thickness; wherein, the larger the second thickness, the smaller the outlet temperature of the strip steel in the cooling section.
[0028] In some embodiments, if the second thickness is 0.1 mm, the outlet temperature of the strip in the cooling section is 520°C to 550°C; if the second thickness is 0.15 mm, the outlet temperature of the strip in the cooling section is 400°C to 430°C.
[0029] It should be noted that by limiting the outlet temperature of the strip in the cooling section, the cooling rate of the strip can be ensured to be less than 15℃ / s, reducing the internal stress during cooling of extremely thin strips. The slow cooling process allows the strip to undergo sufficient thermal activation and recovery at a higher temperature, minimizing the thermal stress and lattice defects caused by rapid cooling. The reduction in internal stress means fewer domain pinning points, resulting in smoother domain wall movement, significantly reducing hysteresis loss, and ultimately reducing high-frequency iron loss in electrical steel.
[0030] In some implementations, the thickness of the electrical steel is less than or equal to 0.15 mm.
[0031] In some implementations, the electrical steel is non-oriented electrical steel used in new energy devices.
[0032] It should be noted that new energy devices can include new energy vehicle drive motors, new energy storage converters, and wind power inverters.
[0033] It should be noted that the high-frequency iron loss of conventional medium-thick electrical steel is mainly eddy current loss, while for ultra-thin electrical steel with a thickness of 0.15 mm or less, the eddy current loss is significantly reduced due to the substantial reduction in thickness. The high-frequency iron loss is then dominated by hysteresis loss, residual stress loss, and pinning loss of fine precipitates. Ultra-thin electrical steel has the following inherent disadvantages: First, the total cold-rolling reduction rate is extremely high (generally >93%), resulting in a dislocation density and deformation energy storage far exceeding those of conventional specifications; second, the strip has extremely low thermal inertia and extremely thin wall thickness, leading to rapid heating and cooling rates, which easily generate thermal stress and lattice defects; third, due to geometric limitations, grain growth is difficult under conventional annealing, easily resulting in grain sizes smaller than the plate thickness and dense grain boundaries. Furthermore, since electrical steel is a non-oriented electrical steel used in new energy devices, such as ultra-high frequency motors (1000Hz~2000Hz), the impact of hysteresis loss, stress loss, and precipitation pinning loss on iron loss is extremely amplified, placing stringent requirements on microstructure purity and stress state. Therefore, this invention, through the aforementioned synergistic process, precisely solves the inherent problems of large deformation, dimensional constraints, thermal stress sensitivity, and uneven microstructure in ultra-thin strip steel. Thus, this control process is particularly suitable for ultra-thin non-oriented electrical steel for new energy applications with a thickness ≤0.15mm.
[0034] In this embodiment of the invention, when processing strip steel in the heating furnace of the hot rolling mill, the hot rolling exit temperature of the strip steel is controlled to be greater than 1050°C and the furnace time is greater than 90 minutes; when processing strip steel in the normalizing and pickling unit, the normalizing temperature of the strip steel in the normalizing and pickling unit is controlled to be greater than 880°C; the second thickness of the strip steel after rolling in the cold rolling mill is obtained; when processing strip steel in the heating section of the continuous annealing unit, the annealing temperature of the strip steel in the heating section is controlled based on the second thickness; wherein, the larger the second thickness, the higher the annealing temperature; if the second thickness is 0.1 mm, the annealing temperature of the strip steel in the heating section is 970°C to 1000°C; if the second thickness is 0.15 mm, the annealing temperature of the strip steel in the heating section is 1000°C to 1030°C. By controlling the hot-rolling exit temperature and furnace time, the fine, pinned magnetic domain nano-precipitates in the steel can be completely dissolved back into the matrix, eliminating the source of hysteresis loss at high frequencies and directly reducing the resistance to domain wall movement, thus significantly reducing high-frequency iron loss. By controlling the normalization temperature, the precipitates dissolved back into the matrix in the preceding hot-rolling furnace can be transformed into large, harmless particles that do not pin magnetic domains. Simultaneously, the hot-rolled structure is homogenized, and internal stress is eliminated, reducing hysteresis loss under high-frequency magnetic fields at its source. By precisely controlling the annealing temperature in the continuous annealing heating section in conjunction with the strip thickness, it is ensured that the grain size of ultra-thin specifications is greater than the plate thickness, while eliminating mixed crystals. Therefore, the high-frequency iron loss of electrical steel is ultimately reduced.
[0035] Based on the same inventive concept, and referring to Figure 2 As shown, this embodiment of the invention provides a production control device 10 for an electrical steel production line. The electrical steel production line is used to process strip steel into electrical steel. The electrical steel production line includes a hot rolling mill, a normalizing and pickling mill downstream of the hot rolling mill, a cold rolling mill downstream of the normalizing and pickling mill, and a continuous annealing mill downstream of the cold rolling mill. The production control device 10 for the electrical steel production line includes: a first control unit 110, used to control the hot rolling exit temperature of the strip steel in the heating furnace of the hot rolling mill to be greater than 1050°C and the furnace time to be greater than 90 minutes when the strip steel is processed in the heating furnace of the hot rolling mill; a second control unit 1... 20, used to control the normalizing temperature of strip steel in the normalizing and pickling unit to be greater than 880℃ when processing strip steel in the normalizing and pickling unit; to obtain the second thickness of strip steel after rolling in the cold rolling unit; and to control the annealing temperature of strip steel in the heating section of the continuous annealing unit based on the second thickness when processing strip steel in the heating section; wherein, the larger the second thickness, the higher the annealing temperature; wherein, if the second thickness is 0.1mm, the annealing temperature of strip steel in the heating section is 970℃~1000℃; if the second thickness is 0.15mm, the annealing temperature of strip steel in the heating section is 1000℃~1030℃.
[0036] Understandably, the production control device 10 of the electrical steel production line also includes: a first thickness acquisition unit, used to acquire the first thickness of the strip after rolling in the hot rolling mill; and a first temperature control unit, used to control the normalizing temperature of the strip in the normalizing and pickling unit based on the first thickness when processing the strip in the normalizing and pickling unit; wherein, the larger the first thickness, the larger the normalizing temperature. Specifically, if the first thickness is 1.8mm to 2.0mm, the normalizing temperature of the strip in the normalizing and pickling unit is 880℃ to 980℃; if the first thickness is 2.0mm to 2.2mm, the normalizing temperature of the strip in the normalizing and pickling unit is 900℃ to 1000℃; and if the first thickness is 2.2mm to 2.4mm, the normalizing temperature of the strip in the normalizing and pickling unit is 920℃ to 1020℃.
[0037] Understandably, the production control device 10 of the electrical steel production line also includes: a second temperature control unit, used to control the outlet temperature of the strip in the cooling section of the continuous annealing unit based on a second thickness when processing the strip; wherein, the larger the second thickness, the lower the outlet temperature of the strip in the cooling section. Specifically, if the second thickness is 0.1 mm, the outlet temperature of the strip in the cooling section is 520℃~550℃; if the second thickness is 0.15 mm, the outlet temperature of the strip in the cooling section is 400℃~430℃.
[0038] Among them, the thickness of electrical steel is less than or equal to 0.15mm.
[0039] It should be understood that further implementation details of the production control device 10 for the electrical steel production line in this embodiment of the invention are as described in the aforementioned production control method for the electrical steel production line, and will not be repeated here for the sake of brevity.
[0040] Based on the same inventive concept, embodiments of the present invention also provide an electronic device, such as... Figure 3 As shown, it includes a memory 304, a processor 302, and a computer program stored in the memory 304 and executable on the processor 302. The processor 302 executes the program to implement the steps described in any embodiment of the production control method for the electrical steel production line.
[0041] Among them, Figure 3In this document, a bus architecture (represented by bus 300) is used. Bus 300 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 305 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 302 is responsible for managing bus 300 and general processing, while memory 304 can be used to store data used by processor 302 during operation.
[0042] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.
[0043] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.
[0044] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.
[0045] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.
[0046] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A production control method for an electrical steel production line, characterized in that, An electrical steel production line is used to process strip steel into electrical steel. The production line includes a hot rolling mill, a normalizing and pickling mill downstream of the hot rolling mill, a cold rolling mill downstream of the normalizing and pickling mill, and a continuous annealing mill downstream of the cold rolling mill. The method includes: When the strip steel is processed in the heating furnace of the hot rolling mill, the hot rolling exit temperature of the strip steel in the heating furnace is controlled to be greater than 1050°C and the furnace time is greater than 90 minutes. When the strip steel is processed in the normalizing and pickling unit, the normalizing temperature of the strip steel in the normalizing and pickling unit is controlled to be greater than 880°C; Obtain the second thickness of the strip after it has been rolled in the cold rolling mill; When the strip is processed in the heating section of the continuous annealing unit, the annealing temperature of the strip in the heating section is controlled based on the second thickness; wherein, the larger the second thickness, the higher the annealing temperature; if the second thickness is 0.1 mm, the annealing temperature of the strip in the heating section is 970℃~1000℃; if the second thickness is 0.15 mm, the annealing temperature of the strip in the heating section is 1000℃~1030℃.
2. The production control method for an electrical steel production line according to claim 1, characterized in that, Also includes: Obtain the first thickness of the strip after it has been rolled in the hot rolling mill; When the strip steel is processed in the normalizing and pickling unit, the normalizing temperature of the strip steel in the normalizing and pickling unit is controlled based on the first thickness; wherein, the larger the first thickness, the larger the normalizing temperature.
3. The production control method for an electrical steel production line according to claim 2, characterized in that, If the first thickness is 1.8mm to 2.0mm, then the normalizing temperature of the strip steel in the normalizing and pickling unit is 880℃ to 980℃; If the first thickness is 2.0mm to 2.2mm, then the normalizing temperature of the strip steel in the normalizing and pickling unit is 900℃ to 1000℃; If the first thickness is 2.2mm to 2.4mm, then the normalizing temperature of the strip steel in the normalizing and pickling unit is 920℃ to 1020℃.
4. The production control method for an electrical steel production line according to claim 1, characterized in that, Also includes: When the strip is processed in the cooling section of the continuous annealing unit, the outlet temperature of the strip in the cooling section is controlled based on the second thickness; wherein, the larger the second thickness, the lower the outlet temperature of the strip in the cooling section.
5. The production control method for an electrical steel production line according to claim 4, characterized in that, If the second thickness is 0.1 mm, then the outlet temperature of the strip in the cooling section is 520℃~550℃; If the second thickness is 0.15 mm, then the outlet temperature of the strip in the cooling section is 400℃~430℃.
6. The production control method for an electrical steel production line according to any one of claims 1-5, characterized in that, The thickness of the electrical steel is less than or equal to 0.15 mm.
7. A production control device for an electrical steel production line, characterized in that, An electrical steel production line is used to process strip steel into electrical steel. The production line includes a hot rolling mill, a normalizing and pickling mill downstream of the hot rolling mill, a cold rolling mill downstream of the normalizing and pickling mill, and a continuous annealing mill downstream of the cold rolling mill. The apparatus includes: The first control unit is used to control the hot rolling exit temperature of the strip steel in the heating furnace of the hot rolling mill to be greater than 1050°C and the furnace time to be greater than 90 minutes when the strip steel is processed in the heating furnace of the hot rolling mill. The second control unit is used to control the normalizing temperature of the strip steel in the normalizing and pickling unit to be greater than 880°C when the strip steel is processed in the normalizing and pickling unit; to obtain the second thickness of the strip steel after rolling in the cold rolling unit; and to control the annealing temperature of the strip steel in the heating section of the continuous annealing unit based on the second thickness when the strip steel is processed in the heating section; wherein, the larger the second thickness, the larger the annealing temperature; if the second thickness is 0.1 mm, the annealing temperature of the strip steel in the heating section is 970°C to 1000°C; if the second thickness is 0.15 mm, the annealing temperature of the strip steel in the heating section is 1000°C to 1030°C.
8. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of any one of claims 1-6.