Tension control device and control method for thin gauge non-oriented silicon steel, and production method

Abstract

The application provides a thin-gauge non-oriented silicon steel tension control device and control method and production method, and belongs to the technical field of metal material processing. Through structural design of a tension regulator, when a tension regulating roller regulates the tension of a strip steel, pinch rollers located on both sides of the tension regulating roller can make the strip steel enter and leave the pass in the rolling center line, so that stable rolling is ensured. Through design of a tension main control system, the values of the set parameters of the current pass and the values of the real-time collected parameters can be combined to limit adjust the tension of the strip steel in the next pass, so that the required load for rolling is reduced to the maximum extent, and the strip steel is thinned. The application can limit adjust the tension of the strip steel under the premise of ensuring stable rolling of the strip steel and ensuring continuous rolling, so that the required load for rolling is reduced to the maximum extent, the thickness of the strip steel is reduced, and the cold continuous rolling production process of thinner-gauge non-oriented silicon steel is realized.

Description

Technical Field

[0001] This invention relates to the field of metal material processing technology, and more specifically, to a tension control device and control method for thin-gauge non-oriented silicon steel, as well as a production method. Background Technology

[0002] Cold rolling is an essential process in the production of non-oriented silicon steel. In cold rolling, non-oriented silicon steel achieves thickness reduction, improved surface quality, and texture control. Currently, most finished non-oriented silicon steel products have a thickness range of 0.25mm to 0.35mm. This requires a 20-roll cold rolling process followed by continuous cold rolling to achieve the desired thickness reduction. However, the capacity of a 20-roll production line is only 1 / 8 that of a continuous rolling line, reducing production efficiency. Furthermore, continuous cold rolling alone is insufficient to achieve the target thickness because the work rolls in continuous cold rolling have larger diameters. When producing thin strips, the elastic deformation of the roll system and the deflection of the work rolls are significant, making it difficult to control strip thinning. Simultaneously, to further thin the strip, a sufficiently large rolling force is required to overcome the elastic deformation of the roll system and the deflection of the work rolls, placing higher demands on the mill load.

[0003] Applying tension during rolling can effectively reduce the rolling force required for strip thinning, while also reducing the rolling load necessary for roll deformation, thus improving the mill's thinning capacity and reducing the load requirements on the mill. However, due to the significant work hardening phenomenon during cold rolling, the strip's formability decreases considerably, and excessive tension can lead to strip breakage, affecting continuous production. Therefore, tension control during cold rolling is crucial.

[0004] In existing studies, tension is usually set in a preset mode and corrected online based on measured values. Tension is adjusted by tension regulating rollers. When the strip is tensioned by tension regulating rollers, it is easy for the strip to deviate from the rolling centerline when it leaves the rolling exit, thus affecting the stability of rolling. At the same time, the above-mentioned existing tension adjustment methods cannot apply tension to the maximum extent while ensuring that the strip does not break, thereby reducing the mill load.

[0005] In summary, the existing tension adjustment methods in non-oriented silicon steel production have problems such as the tension adjustment roller easily affecting rolling stability and the inability to apply tension to the maximum extent while ensuring continuous strip production, thus reducing mill load.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] In view of the above problems, the purpose of this invention is to provide a tension control device and control method for thin-gauge non-oriented silicon steel, as well as a production method, so as to solve the problems in the prior art, such as the tension adjustment roller easily affecting the rolling stability when adjusting the tension, and the inability to apply tension to the maximum extent while ensuring that the strip is not broken, so as to reduce the mill load.

[0008] This invention provides a tension control device for thin-gauge non-oriented silicon steel, comprising a tension regulator and a tension control system signal-connected to the tension regulator; wherein, The tension regulator is located between adjacent mill stands in a continuous rolling mill and includes a tension regulating roller located at the bottom of the strip and a first pinch roller and a second pinch roller located on the feed side and discharge side of the tension regulating roller, respectively; the center lines of the first pinch roller and the second pinch roller coincide with the rolling center line; The tension control system includes a deformation resistance acquisition module, a plastic true strain acquisition module, an ultimate tensile strength acquisition module, a maximum tension determination module, and a control module connected in sequence. The deformation resistance acquisition module is used to input the set parameters of the current rolling mill stand and the real-time collected parameters into the deformation resistance prediction model to obtain the strip deformation resistance after passing the current pass. The plastic true strain acquisition module is used to acquire the cumulative plastic true strain corresponding to the deformation resistance of the strip after passing through the current rolling mill, based on the preset non-oriented silicon steel rheological stress curve. The ultimate tensile strength acquisition module is used to input the cumulative plastic true strain into the fracture damage model and calculate the ultimate tensile strength through the fracture damage model. The maximum tension determination module is used to determine the maximum working tension for the next pass based on the ultimate tensile strength. The control module is used to adjust the vertical displacement of the tension adjusting roller according to the maximum working tension.

[0009] The present invention also provides a tension control method for thin-gauge non-oriented silicon steel, which uses the tension control device for thin-gauge non-oriented silicon steel as described above to regulate the tension of non-oriented silicon steel strip in a continuous rolling mill.

[0010] The present invention also provides a method for producing thin-gauge non-oriented silicon steel, wherein the thin-gauge non-oriented silicon steel tension control device described above is configured in the rolling process of the thin-gauge non-oriented silicon steel to complete the strip tension control during the rolling process.

[0011] As can be seen from the above technical solution, the tension control device and method for thin-gauge non-oriented silicon steel and the production method provided by the present invention, through the structural design of the tension regulator, ensure that the pinch rolls located on both sides of the tension regulating roller are at the rolling centerline when the strip enters and leaves the pass, thus ensuring stable rolling. Through the design of the tension main control system, the tension of the strip can be adjusted to the limit in the next pass by combining the set parameters of the current pass with the real-time collected parameters, thereby minimizing the load required for rolling and thinning the strip. The present invention can adjust the tension of the strip to the limit while ensuring stable rolling and preventing strip breakage, thereby minimizing the load required for rolling, reducing the strip thickness, and realizing the cold continuous rolling production process for thinner-gauge non-oriented silicon steel.

[0012] To achieve the foregoing and related objectives, and in accordance with one or more aspects of the invention, the features described in detail below are included. Certain exemplary aspects of the invention are illustrated in detail below with reference to the accompanying drawings. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to encompass all such aspects and their equivalents. Attached Figure Description

[0013] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention.

[0014] Figure 1 This is a production line layout diagram for thin-gauge non-oriented silicon steel according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the tension regulator according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the module structure of the tension control system according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the stress on non-oriented silicon steel in the rolling zone according to an embodiment of the present invention; Figure 5 This is a force analysis diagram of a strip steel being supported by a tension adjusting roller according to an embodiment of the present invention; Figure 6 for Figure 5 A schematic diagram of the tensile tension breakdown of the strip steel.

[0015] In the attached diagram, 1-tension regulator, 11-tension regulating roller, 12-first pinch roller, 13-second pinch roller, 2-tension main control system, 21-deformation resistance acquisition module, 22-plastic true strain acquisition module, 23-ultimate tensile strength acquisition module, 24-maximum tension determination module, 25-control module, 31-mill stand, 32-uncoiler, 33-first guide roller, 34-edge grinding machine, 35-first tension roller, 36-induction heater, 37-second tension roller, 38-second guide roller, 39-coiler, 4-strip steel. Detailed Implementation

[0016] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details.

[0017] In view of the aforementioned problems in the prior art, such as the tension adjustment roller easily affecting the rolling stability and the inability to apply tension to the maximum extent to reduce the mill load while ensuring the strip does not break, the present invention provides a tension control device and control method for thin-gauge non-oriented silicon steel, as well as a production method.

[0018] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] To illustrate the tension control device, control method, and production method for thin-gauge non-oriented silicon steel provided by this invention... Figure 1 The production line layout structure for thin-gauge non-oriented silicon steel according to an embodiment of the present invention is shown; Figure 2 The structure of a tension regulator according to an embodiment of the present invention is shown; Figure 3 The modular structure of the tension control system according to an embodiment of the present invention is shown; Figure 4 The stress on non-oriented silicon steel in the rolling zone according to an embodiment of the present invention is shown; Figure 5 This illustrates the force analysis when a strip is supported by a tension adjusting roller according to an embodiment of the present invention; Figure 6 It shows Figure 5 Decomposition of tensile tension in strip steel.

[0020] like Figures 1 to 6 As shown in the figure, the tension control device for thin-gauge non-oriented silicon steel provided by the present invention mainly includes a tension regulator 1 and a tension control system 2 that is signal-connected to the tension regulator 1. Tension regulator 1 is installed between adjacent mill stands 31 of continuous rolling mill, including tension regulating roller 11 installed at the bottom of strip 4 and first pinch roller 12 and second pinch roller 13 installed on the feed side and discharge side of tension regulating roller 11 respectively; the center lines of the first pinch roller 12 and the second pinch roller 13 coincide with the rolling center line; The tension control system 2 includes a deformation resistance acquisition module 21, a plastic true strain acquisition module 22, an ultimate tensile strength acquisition module 23, a maximum tension determination module 24, and a control module 25 connected in sequence. The deformation resistance acquisition module 21 is used to input the set parameters of the current rolling mill stand and the real-time collected parameters into the deformation resistance prediction model to obtain the deformation resistance of the strip after passing the current pass. The plastic true strain acquisition module 22 is used to acquire the cumulative plastic true strain corresponding to the deformation resistance of the strip after passing through the current rolling mill, based on the preset non-oriented silicon steel rheological stress curve. The ultimate tensile strength acquisition module 23 is used to input the cumulative plastic true strain into the fracture damage model and calculate the ultimate tensile strength through the fracture damage model. The maximum tension determination module 24 is used to determine the maximum working tension of the next pass based on the ultimate tensile strength. The control module 25 is used to adjust the vertical displacement of the tension adjusting roller according to the maximum working tension.

[0021] Specifically, the thin-gauge non-oriented silicon steel in this invention refers to non-oriented silicon steel with a thickness of 0.1~0.3mm. For example... Figure 1 As shown, the cold rolling production line for thin-gauge non-oriented silicon steel includes an uncoiler 32, a first guide roll 33, an edge grinder 34, a first tension roll 35, an induction heater 36, a continuous rolling mill, a tension regulator 1 between the mill stands 31, a second tension roll 37, a second guide roll 38, and a coiler 39, arranged sequentially along the strip's movement direction. When the strip enters the production line, the initial tension values ​​for each pass are set according to the strip's current thickness and target thickness, and its condition (such as whether it has undergone normalizing, what process it was produced as a hot-rolled coil, pickling time, etc.) by the traditional cold rolling procedure.

[0022] The preset rheological stress curve for non-oriented silicon steel was obtained by testing non-oriented silicon steel with different compositions and temperatures under laboratory conditions. The horizontal axis of the preset rheological stress curve for non-oriented silicon steel is the cumulative plastic true strain, and the vertical axis is the deformation resistance.

[0023] The working process of tension control system 2 is as follows: The deformation resistance acquisition module 21 is connected to the mill signal of each rolling pass, thereby acquiring the values ​​of the set parameters and real-time collected parameters of each mill stand. These values ​​are then input into the deformation resistance prediction model to obtain the strip deformation resistance after passing the current pass. The plastic true strain acquisition module 22 obtains the strip deformation resistance after passing the current pass from the deformation resistance acquisition module 21 and, based on the stored preset non-oriented silicon steel rheological stress curve, obtains the cumulative plastic true strain corresponding to the strip deformation resistance after passing the current pass. The ultimate tensile strength acquisition module 23 obtains the cumulative plastic true strain from the plastic true strain acquisition module 22. The cumulative plastic true strain is input into the fracture damage model, and the ultimate tensile strength is calculated by combining the real-time rolling strain rate (which can be obtained directly from the rolling mill's PLC system) and rolling temperature data (which can be obtained directly from the rolling mill's PLC system or through an infrared temperature measuring device) obtained from the fracture damage model. The maximum tension determination module 24 obtains the ultimate tensile strength from the ultimate tensile strength acquisition module 23, and calculates the maximum working tension for the next pass based on the safety factor and the cross-section of the strip. The control module 25 adjusts the vertical displacement of the tension adjusting roller 11 according to the maximum working tension for the next pass obtained from the maximum tension determination module 24. That is, the control module 25 is signal-connected to the tension adjusting roller 11.

[0024] The fracture damage model can be any existing fracture damage model.

[0025] Through the structural design of the tension regulator 1, when the tension regulating roller 11 adjusts the tension of the strip 4, the pinch rollers located on both sides of the tension regulating roller 11 ensure that the strip 4 is at the rolling centerline when entering and leaving the pass, thus ensuring stable rolling. Through the design of the tension control system 2, the tension of the strip 4 can be adjusted to the limit in the next pass by combining the set parameters of the current pass with the real-time collected parameters, thereby minimizing the load required for rolling and reducing the thickness of the strip. This invention can adjust the tension of the strip to the limit while ensuring stable rolling and preventing strip breakage, thereby minimizing the load required for rolling, reducing the thickness of the strip, and realizing a cold continuous rolling production process for thinner non-oriented silicon steel.

[0026] As a preferred embodiment of the present invention, the continuous rolling mill is a six-roll continuous rolling mill; and / or, the working roll diameter of the continuous rolling mill is 260mm~340mm.

[0027] Specifically, a six-stand rolling mill is preferred, but not limited to, a continuous rolling mill. Five or six stands are commonly used. However, a five-stand mill has a limited total reduction rate when rolling silicon steel, and cannot fully cover the thickness range of thin specifications; while a seven-stand mill can cover the thickness range of thin specifications well, but due to its high cost and low energy utilization efficiency, a six-stand rolling mill can cover the thickness range of thin specifications and has higher energy utilization efficiency.

[0028] When the continuous rolling mill is a six-pass rolling mill, tension regulator 1 can be installed only between the third and fourth rolling passes, between the fourth and fifth rolling passes, and between the fifth and sixth rolling passes.

[0029] Tension is set via the difference in flow rate per second between the front and rear tension rolls (i.e., the first tension roll 35 and the second tension roll 37) of the continuous rolling mill. The tension after the first rolling pass is provided by the first tension roll 35, and the tension before the sixth rolling pass is provided by the second tension roll 37. Tension is divided into two parts: a preset tension, achieved through the first tension roll 35 and the second tension roll 37, and a real-time tension adjustment provided by the tension regulator 1. Regarding the preset tension, because the strip thickness is inconsistent when passing through the first tension roll 35 and the second tension roll 37 (the second tension roll 37 has a thinner strip thickness), it needs to rotate at a higher speed to achieve equal flow rates per second, thus ensuring a stable rolling process. If the second tension roll 37 rotates at a low speed, the strip flow rate per second will be low, causing strip accumulation within the rolling mill and resulting in production stagnation. Therefore, it is necessary to increase the rotational speed of the second tension roller 37. When the flow rate per second of the second tension roller 37 is greater than that of the first tension roller 35, it will drag the strip steel. This dragging is manifested as tension on the strip steel 4. The greater the difference in flow rate per second, the greater the stress generated by the dragging. Therefore, by controlling the difference in flow rate per second between the second tension roller 37 and the first tension roller 35, the tension of the strip steel 4 can be controlled.

[0030] As a preferred embodiment of the present invention, the diameters of the tension adjusting roller 11, the first pinch roller 12, and the second pinch roller 13 are all 150~250mm; and / or, the distance between the tension adjusting roller 11 and the first pinch roller 12 and the distance between the tension adjusting roller 11 and the second pinch roller 13 are both 500~1500mm.

[0031] Specifically, the first pinch roller 12 and the second pinch roller 13 are fixed on the frame of the tension regulator, and the tension regulating roller 11 can move up and down to increase the tension of the strip 4.

[0032] It should be noted that the diameters of the tension adjusting roller 11, the first pinch roller 12, and the second pinch roller 13 are preferably, but not limited to, 150~250mm; the distance between the tension adjusting roller 11 and the first pinch roller 12 and the distance between the tension adjusting roller 11 and the second pinch roller 13 are preferably, but not limited to, 500~1500mm.

[0033] As a preferred embodiment of the present invention, the upper tangent of the tension adjusting roller 11 is tangent to the bottom surface of the strip 4; the maximum displacement stroke of the tension adjusting roller 11 is 30~130mm.

[0034] Specifically, the maximum stroke of the tension adjusting roller 11 is preferably 30~130mm. The maximum stroke needs to be greater than 30mm to ensure that tension can be provided. The maximum stroke is not greater than 130mm because excessive stroke will cause the silicon steel to bend significantly within the tension adjuster 1, which is prone to breakage. Therefore, the maximum stroke range is set to 30~130mm. The specific data should be determined according to the site location, production line products, and process.

[0035] As a preferred embodiment of the present invention, the number of first pinch rollers 12 is one or at least two; the number of second pinch rollers 13 is one or at least two.

[0036] Specifically, the number of first pinch rollers 12 of each tension regulator 1 can be one or at least two; the number of second pinch rollers 13 of each tension regulator 1 can be one or at least two.

[0037] As a preferred embodiment of the present invention, the training method for the deformation resistance prediction model includes: Collect production parameter datasets for each stage; the production parameter data includes datasets corresponding to set parameters and datasets corresponding to real-time collected parameters. Based on the production parameter dataset and rolling theory, the actual deformation resistance of each pass is calculated to obtain the actual deformation resistance dataset. Establish the correspondence between the production parameter dataset and the real deformation resistance dataset, and use the production parameter dataset as input and the real deformation resistance dataset as output to train the preset basic model to obtain the deformation resistance prediction model.

[0038] Specifically, a production parameter dataset for each rolling pass is collected, including both set parameters and real-time acquired parameters. Then, based on rolling theory, the actual deformation resistance for each pass is calculated from the production parameter dataset to obtain the actual deformation resistance dataset. The correspondence between the calculated actual deformation resistance dataset and the production parameter dataset is then established. Based on this correspondence, the production parameter dataset is used as input, and the actual deformation resistance dataset is used as output to train a pre-defined basic model, resulting in a deformation resistance prediction model. To improve the accuracy of the deformation resistance prediction model, iterative updates can be performed periodically.

[0039] As a preferred embodiment of the present invention, the set parameters include non-oriented silicon steel composition, inlet thickness, inlet temperature, and emulsion injection volume; the real-time collected parameters include rolling force, outlet thickness, and outlet temperature.

[0040] Specifically, the set parameters include, but are not limited to, the composition of non-oriented silicon steel, inlet thickness, inlet temperature, and emulsion injection volume; the real-time acquired parameters include, but are not limited to, rolling force, exit thickness, and exit temperature. The set parameters for each rolling pass can be initially set using existing traditional prediction models; the real-time acquired parameters are obtained through on-site real-time data collection.

[0041] Taking the first pass of strip steel as an example, the rolling parameters are divided into set parameters and real-time acquired parameters. The set parameters do not change, so they are transmitted to the deformation resistance prediction model in advance. The real-time acquired parameters may have some errors due to occasional situations during the rolling process, so they need to be acquired in real time and transmitted to the deformation resistance prediction model to improve data transmission efficiency.

[0042] In a preferred embodiment of the present invention, the control module includes a displacement calculation unit and a displacement control unit; wherein... The displacement calculation unit is used to calculate the displacement data of the tension adjusting roller 11 in the vertical direction based on the maximum working tension. The displacement control unit is used to adjust the vertical displacement of the tension regulating roller 11 based on the displacement data.

[0043] Specifically, such as Figure 5 and Figure 6 As shown, the tensile tension of strip 4 = initial tension of strip 4 / cosα; the upward movement distance of tension adjusting roller 11 = distance between tension adjusting roller 11 and first pinch roller 12. tanα. Where α is the angle between the initial tension and the tensile tension of the strip. Given the initial tension of the strip 4 and the calculated tensile tension of the strip 4 to be set, the angle α can be calculated; given the angle α and the distance between the tension adjusting roller 11 and the first pinch roller 12, the vertical displacement of the tension adjusting roller 11 can be obtained.

[0044] The tension control method for thin-gauge non-oriented silicon steel provided by the present invention uses the tension control device for thin-gauge non-oriented silicon steel as described above to regulate the tension of non-oriented silicon steel strip in a continuous rolling mill.

[0045] The present invention provides a method for producing thin-gauge non-oriented silicon steel, wherein the thin-gauge non-oriented silicon steel tension control device described above is configured in the rolling process of the thin-gauge non-oriented silicon steel to complete the strip tension control during the rolling process.

[0046] To better illustrate the application of the tension control device and control method for thin-gauge non-oriented silicon steel and the production method provided by the present invention, the following specific embodiments are provided.

[0047] The tension control device for thin-gauge non-oriented silicon steel provided by the present invention is used in a continuous rolling mill with a six-stand mill. Tension regulators 1 are installed only between the mill stand of the third rolling pass and the mill stand of the fourth rolling pass, between the mill stand of the fourth rolling pass and the mill stand of the fifth rolling pass, and between the mill stand of the fifth rolling pass and the mill stand of the sixth rolling pass.

[0048] Example 1

[0049] The non-oriented silicon steel has a Si mass fraction of 2.6%, an inlet thickness of 2.5 mm, an outlet thickness of 0.35 mm, and is a hot-rolled normalized plate. The mill exit speed is 1500 m / min. The parameter data during the rolling process are shown in Table 1.

[0050]

[0051] Table 1

[0052] Example 2

[0053] The non-oriented silicon steel has a Si mass fraction of 3.2%, an inlet thickness of 1.8 mm, an outlet thickness of 0.25 mm, and is a hot-rolled normalized plate. The mill exit speed is 1500 m / min. The parameter data during the rolling process are shown in Table 2.

[0054]

[0055] Table 2

[0056] As can be seen from the above specific embodiments, the tension control device and method for thin-gauge non-oriented silicon steel and the production method provided by the present invention, through the structural design of the tension regulator, ensure that the pinch rollers located on both sides of the tension regulating roller are at the rolling centerline when the strip enters and leaves the pass, thus ensuring stable rolling. Through the design of the tension main control system, the tension of the strip can be adjusted to the limit in the next pass by combining the set parameters of the current pass with the real-time collected parameters, thereby minimizing the load required for rolling and thinning the strip. The present invention can adjust the tension of the strip to the limit while ensuring stable rolling and preventing strip breakage, thereby minimizing the load required for rolling, reducing the strip thickness, and realizing the cold continuous rolling production process for thinner-gauge non-oriented silicon steel.

[0057] The tension control device, control method, and production method for thin-gauge non-oriented silicon steel according to the present invention have been described above by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various modifications can be made to the tension control device, control method, and production method for thin-gauge non-oriented silicon steel according to the present invention without departing from the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A tension control device for thin-gauge non-oriented silicon steel, characterized in that, It includes a tension regulator and a tension control system that is signal-connected to the tension regulator; wherein, The tension regulator is located between adjacent mill stands in a continuous rolling mill and includes a tension regulating roller located at the bottom of the strip and a first pinch roller and a second pinch roller located on the feed side and discharge side of the tension regulating roller, respectively; the center lines of the first pinch roller and the second pinch roller coincide with the rolling center line; The tension control system includes a deformation resistance acquisition module, a plastic true strain acquisition module, an ultimate tensile strength acquisition module, a maximum tension determination module, and a control module connected in sequence. The deformation resistance acquisition module is used to input the set parameters of the current rolling mill stand and the real-time collected parameters into the deformation resistance prediction model to obtain the strip deformation resistance after passing the current pass. The plastic true strain acquisition module is used to acquire the cumulative plastic true strain corresponding to the deformation resistance of the strip after passing through the current rolling mill, based on the preset non-oriented silicon steel rheological stress curve. The ultimate tensile strength acquisition module is used to input the cumulative plastic true strain into the fracture damage model and calculate the ultimate tensile strength through the fracture damage model. The maximum tension determination module is used to determine the maximum working tension for the next pass based on the ultimate tensile strength. The control module is used to adjust the vertical displacement of the tension adjusting roller according to the maximum working tension.

2. The tension control device for thin-gauge non-oriented silicon steel according to claim 1, characterized in that, The continuous rolling mill is a six-strand rolling mill; and / or... The working roll diameter of the continuous rolling mill is 260mm~340mm.

3. The tension control device for thin-gauge non-oriented silicon steel according to claim 1, characterized in that, The diameters of the tension adjusting roller, the first pinch roller, and the second pinch roller are all 150~250mm; and / or, The distance between the tension adjusting roller and the first pinch roller and the distance between the tension adjusting roller and the second pinch roller are both 500~1500mm.

4. The tension control device for thin-gauge non-oriented silicon steel according to claim 1, characterized in that, The upper tangent of the tension adjusting roller is tangent to the bottom surface of the strip. The maximum displacement stroke of the tension adjusting roller is 30~130mm.

5. The tension control device for thin-gauge non-oriented silicon steel according to claim 1, characterized in that, The number of the first pinch rollers is one or at least two; The number of the second pinch rollers is one or at least two.

6. The tension control device for thin-gauge non-oriented silicon steel according to claim 1, characterized in that, The training method for the deformation resistance prediction model includes: Collect production parameter datasets for each stage; wherein, the production parameter data includes the datasets corresponding to the set parameters and the datasets corresponding to the real-time acquired parameters; Based on the production parameter dataset and rolling theory, the actual deformation resistance of each pass is calculated to obtain the actual deformation resistance dataset. Establish the correspondence between the production parameter dataset and the real deformation resistance dataset, and use the production parameter dataset as input and the real deformation resistance dataset as output to train the preset basic model to obtain the deformation resistance prediction model.

7. The tension control device for thin-gauge non-oriented silicon steel according to claim 6, characterized in that, The set parameters include non-oriented silicon steel composition, inlet thickness, inlet temperature, and emulsion injection volume; The real-time acquired parameters include rolling force, exit thickness, and exit temperature.

8. The tension control device for thin-gauge non-oriented silicon steel according to claim 1, characterized in that, The control module includes a displacement calculation unit and a displacement control unit; wherein... The displacement calculation unit is used to calculate the displacement data of the tension adjusting roller in the vertical direction based on the maximum working tension. The displacement control unit is used to adjust the vertical displacement of the tension regulating roller according to the displacement data.

9. A method for tension control of thin-gauge non-oriented silicon steel, characterized in that, The tension control device for thin-gauge non-oriented silicon steel as described in any one of claims 1-8 is used to regulate the tension of non-oriented silicon steel strip in a continuous rolling mill.

10. A method for producing thin-gauge non-oriented silicon steel, characterized in that, In the rolling process of thin-gauge non-oriented silicon steel, a tension control device for thin-gauge non-oriented silicon steel as described in any one of claims 1-8 is configured to complete the strip tension control during the rolling process.

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