Method for reducing occurrence rate of strip steel flash and related equipment

Abstract

The invention discloses a method for reducing the occurrence rate of strip steel flash and related equipment, relates to the technical field of strip steel rolling, and mainly aims to solve the problem that the occurrence rate of flash is relatively high when the strip steel is trimmed at present. The method comprises the steps that a narrow-scale early warning signal of target strip steel is detected, and the narrow-scale early warning signal is used for early warning that the target strip steel has raw material defects causing flash; and under the condition that the narrow-gauge early warning signal is detected, the tension parameter of an annealing furnace area, the distance parameter of a quick-cooling air box and the shearing speed parameter of a trimming shear are adjusted so as to reduce the flash occurrence rate of the target strip steel. The method is used for the process of reducing the strip steel flash occurrence rate.

Description

Technical Field

[0001] The present invention relates to the technical field of strip steel rolling, and in particular to a method for reducing the occurrence rate of strip steel flash and related equipment. Background Art

[0002] In the continuous annealing production line for cold-rolled strip, the trimming shear is a key piece of equipment to ensure the quality of the finished product. Its function is to shear the irregular edges on both sides of the strip to ensure that the width of the finished product meets the process standards and the requirements of downstream processing or customers for the width of the strip. It also removes edge defects such as oxidized edges, cracks, and burrs generated during the annealing process, thereby avoiding material cracking or surface damage caused by edge defects in subsequent coating and stamping processes. However, in actual production, when the width of the raw strip is insufficient (i.e., narrow gauge), the trimming allowance is reduced. The trimming allowance refers to the edge portion that needs to be removed during shearing. If the allowance is too small, the defective portion may not be completely removed during shearing, resulting in residual flash. Summary of the Invention

[0003] In view of the above problems, the present invention provides a method for reducing the occurrence rate of strip flash and related equipment, the main purpose of which is to solve the current problem of high occurrence rate of flash when trimming strips.

[0004] To solve at least one of the above technical problems, in a first aspect, the present invention provides a method for reducing the occurrence rate of strip flash, the method comprising:

[0005] Detecting a narrow gauge warning signal of a target steel strip, wherein the narrow gauge warning signal is used to warn that the target steel strip has a raw material defect that causes flash;

[0006] When the narrow gauge warning signal is detected, the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling air boxes and the shearing speed parameters of the trimming shears are adjusted to reduce the flash occurrence rate of the target strip.

[0007] Optionally, obtain a narrow gauge warning signal of the target strip, including:

[0008] Detect the minimum width of the target strip;

[0009] Obtaining a difference between the minimum width value and a preset width margin;

[0010] When the difference is smaller than the order width, the narrow size warning signal is triggered.

[0011] Optionally, the preset width margin is 12 mm.

[0012] Optionally, when the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling air box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip steel includes:

[0013] When the narrow gauge warning signal is detected, the tension parameters of the three heating zones and the soaking zone are reduced by 20%-30%, and the tension parameters of the rapid cooling zone are reduced by 15%-20%, so as to reduce the tension parameters of the annealing furnace zone.

[0014] Optionally, when the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling air box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip steel includes:

[0015] When the narrow gauge warning signal is detected, the spacing parameter of the quick cooling air boxes is adjusted to be greater than or equal to 75 mm.

[0016] Optionally, when the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling wind box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip steel includes:

[0017] When the narrow gauge warning signal is detected, the shearing speed parameter of the trimming shear is adjusted to be less than 360 m / min.

[0018] Optionally, the method further includes:

[0019] A sensor is provided at the annealing furnace outlet looper to monitor the overall width value of the target steel strip.

[0020] In a second aspect, an embodiment of the present invention further provides a device for reducing the occurrence rate of flash of a steel strip, comprising:

[0021] a detection unit, configured to detect a narrow gauge warning signal of a target steel strip, wherein the narrow gauge warning signal is used to warn of a raw material defect causing flash in the target steel strip;

[0022] The regulating unit is used to adjust the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling wind boxes and the shearing speed parameters of the trimming shears to reduce the flash occurrence rate of the target strip when the narrow gauge warning signal is detected.

[0023] In order to achieve the above-mentioned purpose, according to the third aspect of the present invention, a computer-readable storage medium is provided, which includes a stored program, wherein when the above-mentioned program is executed by a processor, the steps of the above-mentioned method for reducing the occurrence rate of strip flash are implemented.

[0024] In order to achieve the above-mentioned purpose, according to the fourth aspect of the present invention, there is provided an electronic device, comprising at least one processor and at least one memory connected to the processor; wherein the above-mentioned processor is used to call the program instructions in the above-mentioned memory to execute the steps of the above-mentioned method for reducing the incidence rate of strip flash.

[0025] Through the above-mentioned technical solution, the present invention provides a method for reducing the incidence of flash in steel strips and related equipment. This method addresses the current problem of high flash incidence during strip trimming by detecting a narrow gauge warning signal from the target steel strip, wherein the narrow gauge warning signal is used to warn of raw material defects in the target steel strip that may cause flash. Upon detecting the narrow gauge warning signal, the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling air boxes, and the shear speed parameters of the trimming shears are adjusted to reduce the flash incidence of the target steel strip. In this solution, by identifying the risk of insufficient raw material width in advance, the condition of excessively small trimming allowance is eliminated at the source, and the physical state and shearing accuracy of the production process are dynamically optimized. The purpose of the narrow gauge warning signal is to lock in advance the strip that may have exhausted the trimming allowance due to insufficient width, triggering the reduction of tension in the annealing furnace area, thereby reducing the tensile deformation and lateral shrinkage of the strip during high-temperature annealing, and avoiding further compression of the already insufficient trimming allowance; at the same time, increasing the distance between the bellows and the strip in the rapid cooling section can offset the risk of vibration caused by low tension, prevent scratches caused by contact between the strip and the equipment, and ensure that the strip enters the shearing stage smoothly. Finally, by limiting the shearing speed of the trimming shear or pausing trimming, the time the tool acts on edge defects is extended, and the shearing force covers the remaining width more evenly, thereby improving the cutting integrity and avoiding burr residue caused by high-speed shearing. This process systematically reduces the physical conditions and operational defects that cause flash through closed-loop control of early warning, process adaptation, and precise shearing.

[0026] Correspondingly, the device, equipment and computer-readable storage medium for reducing the incidence of strip flash provided by the embodiments of the present invention also have the above-mentioned technical effects.

[0027] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0029] Figure 1 A schematic flow chart of a method for reducing the incidence of strip flash provided by an embodiment of the present invention is shown;

[0030] Figure 2 A schematic block diagram of the composition of a device for reducing the occurrence rate of flash of steel strips provided by an embodiment of the present invention is shown;

[0031] Figure 3 A schematic block diagram of the composition of an electronic device for reducing the occurrence rate of strip flash provided by an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0032] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0033] In order to solve the problem of high occurrence rate of flash during strip trimming, the embodiment of the present invention provides a method for reducing the occurrence rate of flash of strip, such as Figure 1 As shown, the method includes:

[0034] S101, detecting a narrow gauge warning signal of a target steel strip, wherein the narrow gauge warning signal is used to warn that the target steel strip has a raw material defect that causes flash;

[0035] For example, detecting the "narrow gauge warning signal" of the target steel strip refers to the early identification of raw material risks that may cause flash defects by real-time monitoring of whether the width of the raw steel strip is lower than the safety threshold. The "narrow gauge" here refers to the actual width of the raw steel strip being less than the minimum safety value required by the process. Its essence is that the raw material has a defect of insufficient width. The core function of this warning signal is to predict in advance the risk that the raw steel strip may not be able to completely remove edge defects due to insufficient trimming allowance in the subsequent trimming process. When the system detects such a signal, it means that defects such as oxide layers and cracks on the edge of the strip may remain due to insufficient reserved cutting width, forming flash.

[0036] In principle, the triggering mechanism for the narrow gauge warning signal is based on the dynamic balance between stock width and trimming allowance. If the stock width is insufficient, the trimming shear's allowance (i.e., the combined width of the strip to be trimmed on both sides) is forced to decrease, resulting in the cutter being unable to reach the defective area. Consequently, defects such as oxide layers and burrs on the strip edge are not completely removed, remaining as flash on the finished product.

[0037] S102: When the narrow gauge warning signal is detected, the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling air box, and the shearing speed parameter of the trimming shear are adjusted to reduce the flash occurrence rate of the target strip.

[0038] This application takes into account the problem of insufficient margin caused by further width loss due to thermal shrinkage or improper tension of the strip during the process. The early warning system monitors the raw material width in real time and, combined with the thermal shrinkage characteristics of the annealing process, dynamically determines whether the remaining width is sufficient to support effective trimming. This triggers an early warning before flash occurs and adjusts process parameters (such as annealing tension, shear speed, etc.) in a coordinated manner, blocking the physical conditions that cause flash at the source of raw material defects.

[0039] For example, after detecting a narrow gauge warning signal, the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling bellows, and the shear speed parameters of the trimming shears are adjusted. The core principle is to block the physical chain of flash formation by dynamically adapting to process conditions. The tension parameters of the annealing furnace zone control the longitudinal tension to which the strip is subjected during high-temperature annealing. High tension will intensify the longitudinal stretching of the strip, leading to lateral shrinkage, further compressing the already insufficient trimming margin. Reducing tension can reduce this shrinkage effect, maintain the natural width of the strip, and reserve sufficient operating space for subsequent trimming. The spacing parameter of the rapid cooling bellows refers to the distance between the bellows and the surface of the strip. Its adjustment is to address the risk of strip vibration caused by low tension: after the tension is reduced, the stability of the strip in the rapid cooling section decreases. If the bellows are too close, the strip may touch the bellows surface when swinging and cause scratches. Increasing the spacing can avoid mechanical contact damage, while ensuring uniform heat dissipation of the strip during the rapid cooling process, maintaining edge straightness, and creating conditions for precise trimming. The shear speed parameter of the trimming shear directly affects the interaction time between the blade and the strip. High-speed shearing shortens the time the blade engages the defective edge, resulting in uneven shear force distribution and incomplete cutting. Reducing the speed or pausing trimming can extend the shearing action time, allowing the blade to fully cover the defective area and evenly apply force to completely remove the oxide layer or burrs, avoiding residual flash caused by incomplete instantaneous shearing. The coordinated adjustment of these three parameters is essentially to address the problem of insufficient trimming allowance caused by narrow gauges. From the three dimensions of suppressing width loss, ensuring strip stability, and optimizing shearing accuracy, the process conditions that cause flash are systematically reduced, forming a closed-loop control from early warning to execution.

[0040] Through the above-mentioned technical solution, the present invention provides a method for reducing the incidence of flash in steel strips and related equipment. This method addresses the current problem of high flash incidence during strip trimming by detecting a narrow gauge warning signal from the target steel strip, wherein the narrow gauge warning signal is used to warn of raw material defects in the target steel strip that may cause flash. Upon detecting the narrow gauge warning signal, the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling air boxes, and the shear speed parameters of the trimming shears are adjusted to reduce the flash incidence of the target steel strip. In this solution, by identifying the risk of insufficient raw material width in advance, the condition of excessively small trimming allowance is eliminated at the source, and the physical state and shearing accuracy of the production process are dynamically optimized. The purpose of the narrow gauge warning signal is to lock in advance the strip that may have exhausted the trimming allowance due to insufficient width, triggering the reduction of tension in the annealing furnace area, thereby reducing the tensile deformation and lateral shrinkage of the strip during high-temperature annealing, and avoiding further compression of the already insufficient trimming allowance; at the same time, increasing the distance between the bellows and the strip in the rapid cooling section can offset the risk of vibration caused by low tension, prevent scratches caused by contact between the strip and the equipment, and ensure that the strip enters the shearing stage smoothly. Finally, by limiting the shearing speed of the trimming shear or pausing trimming, the time the tool acts on edge defects is extended, and the shearing force covers the remaining width more evenly, thereby improving the cutting integrity and avoiding burr residue caused by high-speed shearing. This process systematically reduces the physical conditions and operational defects that cause flash through closed-loop control of early warning, process adaptation, and precise shearing.

[0041] In one embodiment, obtaining a narrow gauge warning signal of a target steel strip includes:

[0042] Detect the minimum width of the target strip;

[0043] Obtaining a difference between the minimum width value and a preset width margin;

[0044] When the difference is smaller than the order width, the narrow size warning signal is triggered.

[0045] For example, the "minimum width value" of the target strip to be tested refers to the width of the narrowest part of the strip during continuous production. This parameter reflects the width defects of the raw material in a local area (such as narrow points at the head, tail or middle section due to uneven rolling). The "preset width allowance" is a safety margin set in advance to ensure the effectiveness of the trimming operation. Its essence is a reserved process fault tolerance space used to cover the width loss caused by factors such as annealing shrinkage and equipment shearing errors. The "order width" is the final width requirement of the finished strip by the downstream process or the customer.

[0046] The principle of triggering the "narrow gauge warning signal" mentioned above is: by real-time detection of the width of the narrowest part of the strip, calculating whether the remaining available width after deducting the reserved margin can still meet the order requirements, if the remaining width is insufficient (the difference is less than the order width), it means that the width of the raw material in this area can no longer support the safe cutting amount of the trimming shears, and the warning is triggered at this time. The core logic of this mechanism is to lock in the risk of insufficient trimming margin due to the local narrowness of the raw material in advance, to avoid the formation of burrs due to edge defects (such as oxide layer, cracks) not being completely sheared due to insufficient cutting width, and at the same time, through the early warning signal, to link subsequent process adjustments (such as reducing tension, optimizing shear speed), to block the possibility of burrs from the source.

[0047] In one embodiment, the preset width margin is 12 mm.

[0048] For example, a preset width margin of 12mm balances the safety tolerance and production economy of the trimming process. By covering multiple factors such as raw material fluctuations, annealing shrinkage, and equipment errors, it creates a buffer barrier to prevent flash defects. This allows the strip to retain at least sufficient cutting space on one side during the trimming process (for example, to cover typical defect sizes such as oxide layer depth and burr extension length), while also leaving a margin to account for the thermal shrinkage effect of the annealing process. The lateral shrinkage of the strip at high temperatures may further reduce the trimming margin. However, the 12mm margin ensures that the trimming shears can fully cover the defect area even when local fluctuations in raw material width or annealing shrinkage are superimposed.

[0049] In addition, this allowance value is also compatible with the compensation requirements for equipment shearing errors (such as deviations in cutting position caused by tool wear), avoiding misjudgments caused by decreased equipment accuracy. The 12mm allowance threshold serves as the critical point for early warning triggering, and can form process synergy with subsequent tension adjustment, bellows spacing adjustment, and shearing speed control: when the width of the raw material approaches the safety threshold, the system intervenes in advance to adjust, which not only avoids frequent shutdowns or parameter resets caused by overly conservative early warnings (for example, qualified raw materials may be misjudged as narrow when the allowance is set too large), but also maintains effective cutting edges through process adaptation before the allowance is exhausted, thereby maximizing raw material utilization while ensuring quality, reducing rework and waste. This dynamic balance mechanism based on systematic risk prediction makes the preset allowance of 12mm the optimal solution for both quality stability and production efficiency.

[0050] In one embodiment, when the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling air box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip includes:

[0051] When the narrow gauge warning signal is detected, the tension parameters of the three heating zones and the soaking zone are reduced by 20%-30%, and the tension parameters of the rapid cooling zone are reduced by 15%-20%, so as to reduce the tension parameters of the annealing furnace zone.

[0052] After detecting the narrow gauge warning signal, the tension parameters of the three heating zones, the soaking zone, and the rapid cooling zone are reduced. The principle is to reduce the longitudinal tension on the strip during annealing and inhibit the transverse shrinkage effect caused by high tension, thereby alleviating the problem of insufficient trimming allowance.

[0053] The tension parameters in the three heating zones and the soaking section control the longitudinal tensile strength of the strip during the high-temperature heating stage. High tension forces the strip to be forcibly stretched when it expands due to heat, causing it to shrink in the width direction due to limited material ductility, further compressing the originally insufficient trimming margin. Reducing the tension in this stage by 20%-30% can reduce tensile deformation, allowing the strip to expand naturally due to heat, retaining more of its original width and providing sufficient operating space for subsequent trimming.

[0054] The tension parameters in the rapid cooling section affect the stability of the strip during the cooling stage. During this stage, the strip temperature drops and the rigidity recovers. If the tension is too high, the strip will continue to stretch and aggravate the residual stress. Reducing the tension by 15%-20% can prevent excessive shrinkage during the cooling process and avoid strip shaking or sagging due to a sudden drop in tension (which may cause scratches or deviation).

[0055] The differential adjustment ranges for the two are based on the material properties of the different temperature zones: In the high-temperature zone (heating and soaking stages), the strip is more ductile, requiring a larger reduction in tension to offset the coupled effects of thermal expansion and stretching. In the rapid cooling stage, the strip's rigidity increases, and a smaller reduction in tension can balance shrinkage control and stability requirements. This coordinated adjustment suppresses width loss throughout the annealing process, thereby reducing residual flash in narrow strip due to excess stock depletion.

[0056] In one embodiment, when the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling air box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip includes:

[0057] When the narrow gauge warning signal is detected, the spacing parameter of the quick cooling air boxes is adjusted to be greater than or equal to 75 mm.

[0058] This application adjusts the spacing parameter of the rapid cooling bellows to greater than or equal to 75mm after detecting a narrow gauge warning signal. By increasing the distance between the bellows and the strip surface, mechanical contact damage caused by strip vibration or sagging due to reduced annealing tension is prevented, while maintaining cooling uniformity to ensure the stability of the strip edge morphology. The spacing parameter of the rapid cooling bellows refers to the vertical distance between the cooling device inside the bellows and the strip surface. Its essence is a physical measure that controls the impact strength of the cooling airflow on the strip and the heat exchange efficiency.

[0059] When the narrow gauge warning triggers a reduction in annealing tension, the longitudinal tension of the strip in the rapid cooling section decreases, and its transverse rigidity weakens. This can easily lead to irregular swings or even local sagging due to internal stress release or external airflow disturbances. If the bellows spacing is too small at this time, the strip may collide with the bellows structure surface when it vibrates, causing edge scratches or surface indentations. These damages will exacerbate burrs or flash residue in the subsequent trimming process. Increasing the bellows spacing to more than 75mm is equivalent to creating a buffer space between the strip and the equipment. This allows the strip to fluctuate moderately under low tension without contacting the bellows, while ensuring that the cooling airflow can evenly cover the strip surface, avoiding edge warping or thermal deformation caused by local uneven heat dissipation. Such deformation will change the actual width distribution of the strip, causing the preset cutting amount of the trimming shear to deviate from the actual demand, further amplifying the risk of flash.

[0060] The adjustment of the spacing parameters of the above-mentioned fast cooling air boxes is coordinated through physical isolation and thermal management optimization, providing a stable cooling environment for the strip under low tension conditions, reducing the edge quality degradation caused by mechanical contact damage or uneven cooling, and thus indirectly reducing the occurrence rate of flash.

[0061] In one embodiment, when the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling wind box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip includes:

[0062] When the narrow gauge warning signal is detected, the shearing speed parameter of the trimming shear is adjusted to be less than 360 m / min.

[0063] After detecting the narrow gauge warning signal, the shear speed parameter of the side trimmer is adjusted to less than 360m / min. The core principle is to reduce the dynamic impact and material deformation rate during the shearing process, optimize the matching of the shearing force and the material fracture process, and thus reduce the residual edge defects caused by high-speed shearing. The shear speed parameter of the side trimmer refers to the linear speed of the relative movement between the blade and the strip, which directly affects the integrity and uniformity of the material from elastic deformation to plastic fracture during the shearing process.

[0064] When the speed is too high, the contact time between the tool and the strip is shortened, and the shear force is not applied for enough time, which may lead to the following problems: First, the material is forcibly pulled apart before the plastic deformation stage is fully completed, and the shear surface forms an irregular tear layer instead of a smooth bright belt, and burrs or microcracks are easily left on the edge; Second, the instantaneous impact force generated by high-speed shearing intensifies the collision vibration between the tool and the strip, resulting in dynamic offset of the shear blade gap or overlap, causing shear position deviation or secondary shearing; Third, the stress concentration area generated during the material fracture at high speed expands too fast, and the edge oxide layer or defect area cannot be completely covered by the tool, resulting in some defects not being completely removed and forming burrs.

[0065] This application can extend the shear force action time by reducing the shear speed to below 360m / min, so that the edge of the strip undergoes the complete process of elastic flattening, plastic extension and stable fracture in sequence, ensuring that the proportion of the cut layer is increased and the tearing layer is uniform. At the same time, it reduces the equipment vibration caused by the shear impact, maintains the setting accuracy of the shear blade gap and overlap, and by extending the contact time between the tool and the defective area, the blade is fully engaged and the force is evenly applied, ultimately achieving a systematic reduction in the flash incidence rate.

[0066] In one embodiment, the method further comprises:

[0067] A sensor is provided at the annealing furnace outlet looper to monitor the overall width value of the target steel strip.

[0068] This application sets a sensor at the annealing furnace outlet loop to monitor the overall width value of the target strip. The core principle is to measure the actual width of the strip after annealing in real time, and dynamically feed back to the control system to optimize the process parameters, thereby reducing the quality risk of the finished product caused by width deviation. The "overall width value" of the target strip refers to the actual average width of the strip along the length direction after annealing. This parameter reflects the comprehensive effect of the annealing process (such as temperature and tension) on the deformation of the material. The "annealing furnace outlet loop" is a buffer area after the strip completes annealing and enters subsequent processing. The strip here is in a stable operating state and is suitable for width measurement. The role of the sensor at this position is to continuously capture the width data of the strip. Its measurement principle is usually based on non-contact technology (such as laser ranging or radar electromagnetic wave reflection). By transmitting a signal to the edge of the strip and receiving an echo, the distance difference between the two sides of the strip is calculated to determine the actual width.

[0069] The above-mentioned setting of the present application may cause width necking due to thermal expansion, high-temperature creep and tension of the strip during the annealing process. If it is not monitored in time, the necking amount exceeds the preset margin, which will lead to insufficient width of the finished product or residual edge defects after trimming. The overall width is obtained in real time by the sensor at the loop. The system can combine the initial width data at the entrance of the annealing furnace to calculate the actual necking amount and dynamically compensate the shearing parameters of the trimming equipment, while linking the tension adjustment in the annealing furnace. In addition, the loop itself acts as a tension buffer zone, and the synergistic effect of its position control and width monitoring can further stabilize the running state of the strip and avoid width fluctuations or equipment interference risks caused by sudden tension changes. This closed-loop control mechanism significantly reduces the probability of finished product width deviations due to annealing process fluctuations or differences in material properties through the cycle of data feedback and process optimization.

[0070] Furthermore, as a response to the above Figure 1 In order to realize the method shown in the figure, the embodiment of the present invention also provides a device for reducing the occurrence rate of strip flash, which is used to Figure 1 This device embodiment corresponds to the aforementioned method embodiment. For ease of reading, this device embodiment will not describe the details of the aforementioned method embodiment one by one, but it should be clear that the device in this embodiment can implement all the contents of the aforementioned method embodiment. Figure 2 As shown, the device includes: a detection unit 21 and an adjustment unit 22, wherein,

[0071] A detection unit 21 is configured to detect a narrow gauge warning signal of a target steel strip, wherein the narrow gauge warning signal is used to warn of a raw material defect that causes flash in the target steel strip;

[0072] The adjustment unit 22 is used to adjust the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling wind boxes and the shearing speed parameters of the trimming shears to reduce the flash occurrence rate of the target strip when the narrow gauge warning signal is detected.

[0073] The processor includes a core, which retrieves corresponding program units from memory. One or more cores can be provided, and a method for reducing the occurrence rate of strip flash is implemented by adjusting kernel parameters, which can solve the current problem of high flash occurrence rate during strip trimming.

[0074] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program. When the program is executed by a processor, the method for reducing the occurrence rate of strip flash is implemented.

[0075] An embodiment of the present invention provides a processor, which is used to run a program, wherein the method for reducing the occurrence rate of strip flash is executed when the program is run.

[0076] An embodiment of the present invention provides an electronic device, comprising at least one processor and at least one memory connected to the processor; wherein the processor is configured to call program instructions in the memory to execute the method for reducing the occurrence rate of steel strip flash as described above.

[0077] An embodiment of the present invention provides an electronic device 30, such as Figure 3 As shown, the electronic device includes at least one processor 301, and at least one memory 302 and a bus 303 connected to the processor; wherein the processor 301 and the memory 302 communicate with each other through the bus 303; the processor 301 is used to call the program instructions in the memory to execute the above-mentioned method for reducing the incidence rate of strip flash.

[0078] The intelligent electronic devices in this article can be PCs, PADs, mobile phones, etc.

[0079] The present application also provides a computer program product, which, when executed on a process management electronic device, is suitable for executing a program that initializes the steps of the above-mentioned method for reducing the occurrence rate of strip flash.

[0080] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0081] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0082] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0083] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0084] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0085] The present application also provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device is caused to execute the following Figure 1 This corresponds to the flow of memory control in the embodiment.

[0086] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)).

[0087] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0088] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0089] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0090] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0091] If the integrated unit is implemented in the form of 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 application is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0092] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for reducing the incidence of strip flash, characterized in that: include: Detecting a narrow gauge warning signal of a target steel strip, wherein the narrow gauge warning signal is used to warn that the target steel strip has a raw material defect that causes flash; When the narrow gauge warning signal is detected, the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling air boxes and the shearing speed parameters of the trimming shears are adjusted to reduce the flash occurrence rate of the target strip.

2. The method according to claim 1, characterized in that Obtaining narrow-gauge warning signals for target strip steel, including: Detect the minimum width of the target strip; Obtaining a difference between the minimum width value and a preset width margin; When the difference is smaller than the order width, the narrow size warning signal is triggered.

3. The method according to claim 2, characterized in that The preset width margin is 12 mm.

4. The method according to claim 1, wherein When the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling air box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip steel includes: When the narrow gauge warning signal is detected, the tension parameters of the three heating zones and the soaking zone are reduced by 20%-30%, and the tension parameters of the rapid cooling zone are reduced by 15%-20%, so as to reduce the tension parameters of the annealing furnace zone.

5. The method according to claim 1, wherein When the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling air box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip steel includes: When the narrow gauge warning signal is detected, the spacing parameter of the quick cooling air boxes is adjusted to be greater than or equal to 75 mm.

6. The method according to claim 1, characterized in that When the narrow gauge warning signal is detected, adjusting the tension parameter of the annealing furnace zone, the spacing parameter of the rapid cooling wind box, and the shear speed parameter of the trimming shear to reduce the flash occurrence rate of the target strip steel includes: When the narrow gauge warning signal is detected, the shearing speed parameter of the trimming shear is adjusted to be less than 360 m / min.

7. The method according to claim 1, characterized in that Also includes: A sensor is provided at the annealing furnace outlet looper to monitor the overall width value of the target steel strip.

8. A device for reducing the occurrence rate of strip flash, characterized in that: Also includes: a detection unit, configured to detect a narrow gauge warning signal of a target steel strip, wherein the narrow gauge warning signal is used to warn of a raw material defect causing flash in the target steel strip; The regulating unit is used to adjust the tension parameters of the annealing furnace zone, the spacing parameters of the rapid cooling wind boxes and the shearing speed parameters of the trimming shears to reduce the flash occurrence rate of the target strip when the narrow gauge warning signal is detected.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored program, wherein when the program is executed by a processor, the steps of the method for reducing the occurrence rate of strip flash according to any one of claims 1 to 7 are implemented.

10. An electronic device, characterized in that: The electronic device includes at least one processor and at least one memory connected to the processor; wherein the processor is used to call program instructions in the memory to execute the steps of the method for reducing the incidence rate of strip flash as described in any one of claims 1 to 7.

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