2003results about "Measuring devices" patented technology

The invention relates to the technical field of electrical variable measurement, in particular to a rolling mill speed reducer monitoring and diagnosing system based on multi-source information fusion, which comprises an electrical parameter signal acquisition module for acquiring continuous readings of three-phase voltage and three-phase current of a rolling mill driving motor and synchronizing the readings. According to the method, the three-phase voltage and current data of the rolling mill driving motor are synchronously acquired, and the amplitude and phase are calibrated, so that a more accurate calibration electrical measurement set is obtained, and error propagation in a signal acquisition stage is effectively avoided; using the calibrated electrical data to directly calculate instantaneous input electric power, deducting motor loss to obtain an accurate motor shaft power sequence, and then using a Fourier transform method to extract key harmonic characteristics in a shaft power spectrum; and meanwhile, band-pass filtering and Hilbert transform analysis are carried out on the motor stator current, so that a clearer and more recognizable spectrum kurtosis value is obtained, and the judgment capability of current impact and periodic characteristics is enhanced.

The invention relates to the technical field of intelligent regulation and control of fusion data, in particular to a rolled finished product-based size precision intelligent regulation and control system and method, which comprises a data acquisition unit, a data fusion unit, a deep learning prediction unit and a compensation execution unit, multi-source data such as temperature gradient, roll gap fluctuation and tension spectrum are collected in real time through a sensor array, thermal expansion compensation correction is carried out through a data fusion unit based on a rolling elasticoplastic deformation equation, an anti-interference coupling feature vector is generated by using adaptive Kalman filtering, and a deep learning prediction unit is used for predicting the rolling elasticoplastic deformation through a dual-channel space-time convolutional network. The thickness error and the width error are predicted by combining the constraint of a rolling force balance equation, the compensation execution unit dynamically generates the roll gap adjusting amount and the rolling force compensation amount according to a three-level response mechanism, phase lag compensation current is injected to suppress resonance, the high-end steel yield and the rolling precision are improved, and the rolling quality is improved. And an intelligent closed-loop control scheme is provided for high-precision rolling under complex working conditions.

The invention provides a high-frequency welded pipe roller wear state monitoring method and device, and relates to the technical field of artificial intelligence and data processing, a holographic sensing system of working condition parameters and physical signals is constructed through synchronous monitoring of a multi-source sensor, and noise spectrum offset is tracked in real time based on time-frequency expression of data in different modes, so that the real-time monitoring of the wear state of a high-frequency welded pipe roller is realized. And an anti-error filtering protection channel is constructed, so that the inherent characteristics of the damage can be effectively captured. In addition, multi-physical field damage characterization information is fused from multiple complementary dimensions of transient impact (instantaneous frequency vector), spectrum complexity (spectral entropy) and amplitude distribution deflection (skewness), more comprehensive and richer state description can be provided, accurate quantitative evaluation of the roller wear level is achieved, and the capacity of real-time monitoring and accurate recognition of the roller wear state is remarkably improved.

The invention provides a cold rolling mill roller micro displacement real-time monitoring and dynamic compensation control early warning method, which relates to the technical field of monitoring control, and comprises the following steps: monitoring roller temperature field distribution through infrared thermal imaging, establishing a mapping relation between displacement and temperature gradient, calculating thermal deformation and compensating displacement drift; constructing a rolling mill equipment domain knowledge graph and a diagnosis rule base, and performing fault diagnosis by utilizing graph embedding learning; and generating a compensation optimization strategy and establishing fuzzy correlation mapping to calculate an optimal parameter. According to the method, accurate monitoring and compensation of the micro displacement of the roller are achieved, and the equipment fault early warning capacity and the rolling precision are improved.

The invention provides an aluminum product rolling process real-time monitoring and optimizing system based on digital twinning, and relates to the technical field of power battery aluminum foil rolling. The monitoring and optimization system comprises a data acquisition module, a digital twin modeling module, a real-time monitoring module, a dynamic optimization module, a feedback control module, a green manufacturing optimization module and a cross-alloy adaptive module. According to the aluminum product rolling process real-time monitoring and optimizing system based on digital twinning, the data acquisition module, the digital twinning modeling module, the real-time monitoring module, the dynamic optimizing module, the feedback control module, the green manufacturing optimizing module and cross-alloy self-adaption work cooperatively; the defects in the aspects of data acquisition and integration, process parameter optimization and anomaly detection, energy consumption optimization and green manufacturing in the prior art are overcome.

The invention relates to the technical field of metal rolling automation, and discloses a computer intelligent control system of a rolling mill, which comprises a rolling mill production line, and the rolling mill production line further comprises a tensiometer, a pressure sensor and a displacement sensor; and the computer intelligent control system is electrically connected with an executing mechanism and a sensor of the rolling mill production line and comprises a tension control module, an automatic thickness control module and an online model self-adaptive module. The method comprises the following steps: controlling strip steel tension through a tension control module; the strip steel outlet thickness is adjusted through the thickness automatic control module; and model parameters such as rolling mill rigidity and friction compensation are identified in real time in the rolling process through an online model self-adaption module, and continuous optimization of the control model is achieved. By introducing the online model adaptive module, real-time online correction of the core physical model of the control system is realized, and the problem of model mismatch caused by equipment wear and working condition change is solved.

The invention discloses a deep reinforcement learning-based self-learning deviation correction control method for a finish rolling strip threading process, and belongs to the technical field of steel rolling automatic control. The control method comprises the following steps: constructing a deep reinforcement learning model by taking a finish rolling rack in the finish rolling strip threading process as an intelligent agent; based on a deep reinforcement learning model, an optimal strategy is generated through interaction of an intelligent agent and a rolling environment; and the optimal strategy is embedded into a self-learning system in the finish rolling strip threading process for real-time correction, so that the strip steel inlet deviation amount is compensated in real time, and the strip steel outlet deviation amount is controlled within the process allowable range. By adopting the technical scheme provided by the invention, the deviation degree of the head of the finish-rolled strip steel can be greatly reduced.

According to the multi-path cooling control method for the non-adjustable flow of the cooling spray box after hot plate rolling, the mode that an annular rail is combined with a trolley is adopted, the trolley bears a sample through a sample bearing table to do annular motion, the annular rail is an oval rail comprising two parallel linear segments and two semicircular segments, and at least one cooling spray box is arranged along the linear segment rail; the cooling area can be infinitely lengthened at any workpiece speed; according to the cooling starting temperature, the water cooling speed, the cooling stopping temperature, the cooling stopping time between the cooling areas and the production line cooling spray box layout of the N cooling areas determined by the experiment, the experiment device is configured according to different spray box opening modes, the cooling experiment is carried out, and spray box opening mode parameters corresponding to the optimal cooling speed of the N cooling areas are obtained; carrying out cooling control after rolling on corresponding sample production; besides, the method is implemented under the condition basically consistent with the actual working condition of the production line, so that the product design output and the production line process control are more accurate and efficient, the product research and development speed can be effectively increased, the process control precision is improved, and the production line trial-manufacturing cost is reduced.

An electrode sheet rolling and slitting system (10), comprising: a slitting mechanism (11), a pre-slitting detection mechanism (12), a plurality of post-slitting detection mechanisms (13), a conveying mechanism (14), an encoder (15), a programmable logic controller (16), and a marking mechanism (17). The pre-slitting detection mechanism is configured to perform surface defect detection on a first electrode sheet before slitting. The plurality of post-slitting detection mechanisms are configured to perform surface defect detection and tab area size measurement on a plurality of second electrode sheets after slitting; and the plurality of post-slitting detection mechanisms are in one-to-one correspondence with the plurality of second electrode sheets. The pre-slitting detection mechanism and the post-slitting detection mechanisms each comprise a macro camera (121, 131), a superordinate computer (122, 132), and an acquisition card unit (123, 133). Also provided is an electrode sheet rolling and slitting method. The system can obtain clear, fine and distortionless detection images, thereby accurately determining surface defects of electrode sheets.

The present invention discloses a transverse thickness difference detection device for cold-rolled steel strip with a high-tension leveling device, which relates to the technical field of transverse thickness difference detection for cold-rolled steel strip. The device comprises: a bracket, which defines an inner slide rail and an outer slide rail along the length direction; a thickness measuring mechanism, which is slidably connected to the outer slide rail and capable of measuring the thickness of the steel strip; and a clamping mechanism, which comprises a fixed clamping mechanism and a movable clamping mechanism, wherein the fixed clamping mechanism is fixedly arranged on the inner side surface of the bracket and close to one end of the bracket, and the movable clamping mechanism is slidably connected to the inner slide rail and close to the other end of the bracket, and the fixed clamping mechanism and the movable clamping mechanism respectively clamp the two ends of the steel strip. The thickness measuring mechanism is slidably connected to the outer slide rail. Under the action of a ball screw and a drive motor, the thickness measuring mechanism can move along the outer slide rail to perform thickness detection at various positions along the width direction of the steel strip, with high detection efficiency. The measurement results of the thickness measuring mechanism are not affected by human factors, thereby improving the accuracy of the measurement results.

The utility model discloses a special-shaped lithium strip rolling and shaping device which is sequentially provided with a lithium strip placing mechanism and a special-shaped rolling mechanism along a processing path, the lithium strip placing mechanism is used for placing a lithium ingot; the special-shaped rolling mechanism comprises a first special-shaped roller and a second special-shaped roller which can move towards each other and away from each other, the outer surface of one of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially-arranged convex strip, the outer surface of the other one of the first special-shaped roller and the second special-shaped roller is provided with a circumferentially-arranged groove, and the convex strip and the groove are oppositely arranged. The convex strips are matched with the grooves to press indentations on the lithium strip; after the scheme is adopted, the problem of poor production quality of the existing rolling and shaping device can be solved, the rigidity of a lithium strip can be improved, the tension control of unwinding of the rolled lithium strip can be better controlled, the flowability of lithium can be reduced, the problem of material stacking in the rolling process can be better solved through indentations, the rolling speed can be increased, and the production efficiency and the qualified rate can be improved.

The invention provides rolling equipment, a current collector, a preparation method of the current collector, a pole piece, a battery and a device. A rolling device comprises a roller mechanism, a flow control mechanism and a power mechanism. The roller mechanism comprises at least two opposite rollers arranged at intervals and a flow control mechanism. The flow control mechanism is used for independently controlling the flow of the cooling medium in each cooling channel; the power mechanism is used for driving at least one roller to rotate. According to the rolling equipment, the roller diameter of the roller can be simply, effectively and flexibly adjusted by controlling the flow, so that the thickness of a rolled membrane material is adjusted, for example, a current collector with a large thickness in a tab area is prepared, the current collector is used for preparing an electrode pole piece, the problem of belt breakage in mass production of the electrode pole piece can be solved, and the production efficiency of the electrode pole piece is improved. And the yield of electrode plate production is improved.

The invention relates to the technical field of metal processing and digital control, and discloses a digital control method and system for copper strip rolling production, and the method comprises the steps: obtaining a technological parameter sequence and a surface image in a rolling process in real time; analyzing the dynamic change trend of the process parameter sequence to obtain parameter fluctuation characteristics; if the parameter fluctuation characteristic exceeds a preset fluctuation threshold value, identifying a microscopic adhesion position of the copper strip surface image and determining a complete distribution map of an adhesion range; analyzing by combining defect features extracted from the complete distribution map and the process parameter sequence to obtain a parameter interaction weight; and based on the parameter interaction weight, generating optimized process parameter configuration and adjusting an equipment operation state. According to the method, the problem that the control precision of the dynamic defects on the surface of the copper strip is insufficient in the prior art is solved by establishing the dynamic correlation between the process parameters and the surface defects and performing data-driven closed-loop control.

The invention provides a hot-rolled dual-phase steel section temperature uniformity control device and method.The control device comprises a water spraying adjusting system and a rolling process parameter optimizing system, and the water spraying adjusting system comprises a strip steel cooling water collecting pipe between finishing mill racks and a finishing mill rack front end side water spraying collecting pipe; the strip steel cooling water collecting pipe between the finishing mill racks is used for cooling the strip steel between the finishing mill racks, so that the surface temperature of the strip steel finally reaches the target set temperature of a finishing mill outlet; the water spraying header at the front end side of the finishing mill frame is used for differentially adjusting the transverse temperature of the rolled piece, so that cooling water flow forms a uniform fan-shaped cooling area on the surface of strip steel, and the temperature balance of the cross section of the rolled piece is ensured; and the rolling process parameter optimization system is used for generating optimized rolling process parameters according to the initial parameters of the rolled piece and transmitting the optimized rolling process parameters to the rolling mill control system. The strip steel section temperature uniformity of hot-rolled dual-phase steel between finishing mill racks is effectively improved, it is guaranteed that the transverse section temperature difference is within the range of 13 DEG C, and the longitudinal temperature difference is controlled within the target value range of + / -15 DEG C.

The invention relates to the technical field of steel rolling, and discloses a Q355B steel hot rolling process optimization method based on dynamic temperature control, which comprises the following steps: blank pretreatment, dynamic heating control, high-pressure water descaling, rough rolling process, finish rolling process, laminar cooling and coiling process. According to the method, a collaborative system of multi-section variable-temperature heating and intelligent temperature control is constructed, temperature distribution in a furnace and the heating rate are monitored and dynamically adjusted in real time, it is guaranteed that the core surface temperature of a plate blank is uniform and consistent, thermal stress and the internal crack tendency in the heating process are eliminated, and a high-temperature blank uniform in structure and stable in performance is provided for follow-up rolling; meanwhile, the high-pressure water descaling system optimizes jet flow parameters and introduces chemical additives, so that a protective layer is formed while oxide scales on the surface are removed, the surface cleanliness and quality of the plate blank are improved, and product defects caused by incomplete descaling and surface damage are avoided.

The invention discloses a thickness control method for a single-stand steckel mill, which belongs to the field of metallurgical automation control and comprises the following steps: acquiring the distance between the steckel mill and an inlet side thickness gauge, the distance between the steckel mill and an outlet side multifunctional instrument, the rigidity of the mill in forward rotation and the rigidity of the mill in reverse rotation; whether the thickness difference detected by instruments on the two sides of the steckel mill is used for feedforward control or feedback control is determined; according to the running speed of the strip steel under the feed-forward control detection instrument and the distance between the feed-forward control detection instrument and the steekle mill, the roll gap feed-forward adjustment amount is calculated; according to the running speed of the strip steel under the feedback control detection instrument and the distance between the feedback control detection instrument and the steckel mill, the roll gap feedback adjustment amount is calculated; and calculating the final execution adjustment amount of the steekle mill roll gap in combination with the roll gap feedforward adjustment amount and the roll gap feedback adjustment amount. The method solves the problem of thickness control in the reversible rolling process of the single-stand steckel mill, and has positive significance in improving the thickness control quality of the single-stand steckel mill.

According to the high-quality high-speed wire rolling method for the low-alloy high-speed steel wire rod based on continuous casting forming, gradient heating is conducted through the step type heating furnace, preheating of a continuous casting blank is uniform, and phase change stress is reduced. The initial rolling temperature is set and controlled to be 1060-1100 DEG C, the finish rolling temperature is controlled to be 950-1050 DEG C, the spinning temperature is controlled to be 980-1030 DEG C, and the highest rolling speed is 25 m / s. And after rough rolling, induction heating temperature compensation is carried out to increase the surface temperature of the blank, the temperature is set to be 1000-1040 DEG C, the temperature compensation time is controlled to be 10-20 s, and surface cracks and head wind caused by too low temperature are prevented. And closing the cover plate after spinning, adopting heat collection, immediately entering a slow cooling tunnel furnace for furnace cooling after doffing, and discharging for annealing after 48 hours or longer. A continuous casting technology is used for replacing a traditional die casting technology, controlled rolling and controlled cooling in the rolling process are matched, composition segregation is remarkably reduced, the core quality is improved, carbides are effectively refined, the uniformity of products is guaranteed, the production efficiency is improved, the production cost is reduced, and the influence on the environment is reduced; and a new process and a new route are provided for producing the high-quality low-alloy high-speed steel wire rod.

The invention relates to the technical field of hot-rolled steel plate thickness measurement, in particular to a hot-rolled steel plate thickness measurement system. Wherein the clamping assembly clamps the laser when the thickness measuring unit moves, so that the laser is prevented from shaking due to inertia. A second reference surface is arranged in one clamping block in the clamping assembly and is perpendicular to the first reference surface, when the second reference surface is attached to the laser in the vertical state at a specific position, the laser is clamped through the second clamping block, and it is guaranteed that the laser can be perpendicular to the first reference surface all the time; the second clamping block is far away from the laser before the first clamping block, the swinging angle of the laser is twice of the inclination angle, the inclination angle can be obtained by dividing the offset of a laser coordinate and a reference coordinate by two and then multiplying the offset by an energy loss coefficient when the laser swings, and the direction adjusting assembly can adjust the direction of the laser according to the calculated inclination angle. And the fixed connecting part is adjusted, so that the overall measurement time is shortened.

The invention relates to the technical field of aluminum foil rolling, and particularly discloses a rolling mill outlet side oil blocking device integrated with a roller detection function and an oil blocking method.The rolling mill outlet side oil blocking device comprises a support, two parallel sliding rods are arranged on the support, two sliding sleeves are arranged on the sliding rods in a sliding mode, and driving parts for driving the sliding sleeves to move along the sliding rods are arranged on the support; a mounting frame capable of horizontally moving in the vertical direction of the sliding rod is arranged on the side face of the sliding sleeve, the mounting frame is of a hollow structure, and oil blocking felts are arranged on the two slopes of the side, away from the sliding sleeve, of the mounting frame. The distance between the oil blocking felts on the two sides can be adjusted on line according to the width of the strip to be rolled, manual adjustment is not needed, the adjusting speed is high, precision is high, manpower is saved, the roundness and the surface state of the rollers can be detected in the rolling process, the parallelism of the upper roller and the lower roller can be detected in the non-rolling period, and the production efficiency is improved. Operation is simple, and use is convenient.

The invention provides a thermal process temperature monitoring system based on a black box temperature measurement technology, and the system consists of a temperature measurement subsystem, an edge computing gateway, and a cloud data processing module. The temperature measurement subsystem comprises a black box thermodetector and a high-temperature-resistant protection box, and temperature measurement points are set: the edge computing gateway receives original temperature data output by the black box thermodetector, and performs preliminary filtering processing and abnormal value elimination operation by applying a Z-score-based algorithm to ensure the accuracy and reliability of the data; and the cloud data processing module is responsible for storing historical temperature data and generating a visual temperature distribution thermodynamic diagram, so that a user can clearly know the temperature distribution condition. According to the invention, the innovative black box temperature measurement technology is introduced, and advanced anti-interference design and efficient edge calculation integration are combined, so that the reliability, the precision and the data processing efficiency of a thermal process, especially a temperature monitoring system of an iron and steel plant, are remarkably improved, and the blank of the prior art in the field is filled.

The invention relates to the technical field of metal plate rolling processing, and discloses a rolling strengthening method capable of reducing the rigidity of a metal plate, which comprises the following steps: applying an asymmetric rolling condition to an initial plate to enable the plate to generate a speed gradient in the thickness direction; the plate is subjected to one-pass large-rolling-reduction rolling, and a non-continuously-distributed shear band is formed; the rolled plate is heated to the dynamic recrystallization temperature interval of the plate, and multi-pass small-rolling-reduction warm rolling is conducted on the plate; and in the warm rolling process, dynamic recrystallization of a shear band is promoted to form a grain-refined continuous core layer, complete recrystallization of the surface structure of the plate is inhibited to keep the work hardening state of the plate, and therefore the metal plate with the rigidity lower than that of an initial plate is obtained. According to the invention, a soft core-hard shell heterostructure is constructed in the plate, high strength and low macroscopic rigidity are synergistically realized, the process controllability is strong, and the method is suitable for preparation of high-performance structural materials.

To provide a warpage measurement method of a metal plate for detecting warpage of a metal plate with high accuracy, and to provide a warpage measurement device, a program, a warpage control method for reducing the warpage of the metal plate, and a manufacturing method of the metal plate with reduced warpage.SOLUTION: A warpage measurement method of a metal plate includes: an imaging step of capturing an image including at least one of a leading end portion and a trailing end portion of the metal plate; an extraction step of detecting a side surface region corresponding to a side surface portion of the metal plate from the image and extracting a coordinate group representing a boundary position of the side surface region; and a specification step of specifying warpage of the metal plate based on the extracted coordinate group.SELECTED DRAWING: Figure 5

This invention provides a thickness control method for a single-stand reversible cold rolling mill. The single-stand reversible cold rolling mill unit includes an inlet coiler, an outlet coiler, a mill body, a mill hydraulic system, an inlet thickness gauge, an outlet thickness gauge, an inlet speed gauge, an outlet speed gauge, an inlet tension gauge, and an outlet tension gauge. The single-stand reversible cold rolling mill unit also includes an S-roll, with S-rolls at both the inlet and outlet of the unit. The S-roll can rotate 180°, with the upper roll of the S-roll able to rotate to the lower roll position and the lower roll of the S-roll able to rotate to the upper roll position. The 180° rotation causes the strip steel to wind in an S-shape on the S-roll. The thickness difference of the strip steel is eliminated by adjusting the speed of the inlet S-roll to control the metal flow rate entering the roll gap.

The invention provides a method for producing a wire rod from a high-speed wire rod. The method comprises the following steps: controlling 0.21-0.25% of C, 0.40-0.70% of Si, 0.80-1.10% of Mn, less than or equal to 0.045% of P, less than or equal to 0.045% of S and the balance of Fe; the production method comprises the steps of rough rolling, intermediate rolling, pre-finish rolling, water tank and recovery section after pre-finish rolling, finish rolling, water tank and recovery section after finish rolling, diameter reducing, spinning, air cooling roller bed cooling, coil collecting, trimming and bundling. The temperature of a heating section is controlled to be 1040-1100 DEG C, the temperature of a soaking section is controlled to be 1030-1080 DEG C, and the heating time of the steel billet is 80-120 minutes; the initial rolling temperature is 930-980 DEG C, the finish rolling temperature is 900-930 DEG C, the reducing temperature is controlled at 840-880 DEG C, the spinning temperature is 880-920 DEG C, and a heat preservation cover is completely opened.

The invention provides a roller state judgment method and device, equipment, a storage medium and a product. The method comprises the following steps: acquiring operation data of a target roller, wherein the operation data comprises stress data in the operation process of the target roller; inputting the operation data into a preset fatigue life prediction model to obtain the expected residual life of the target roller; the fatigue life prediction model is obtained based on training of historical rolling data of a sample roller, and the historical rolling data comprises at least one of stress data, material data, process data and use data; extracting stress data in the operation data, and inputting the stress data into a preset damage model to obtain damage information of the target roller; and determining the damage state of the target roller based on the expected residual life and the damage information. And the target roller state is judged in combination with data in multiple aspects, so that the judgment accuracy of the roller state is improved, and the maintenance requirement of the target roller is determined more accurately.

The invention belongs to the technical field of special alloy hot rolling, and particularly relates to a refined subsection cooling method and device for a titanium plate hot mill roller. Comprising the steps that S1, a temperature field distribution function of a roller during rolling and a temperature field distribution function of the surface of the roller during cooling are obtained; s2, a heat exchange coefficient distribution function of the heat exchange coefficient required by the roller in the axial direction of the roller is obtained; s3, a distribution function of the cooling water flow in the axial direction of the roller is obtained; s4, according to the distribution function of the cooling water flow in the axial direction of the roller, the roller is divided into a plurality of cooling sections in the axial direction of the roller, and different cooling sections correspond to different cooling water flow difference threshold values; and S5, a non-contact temperature sensor is arranged at the center position of each cooling section, an independent roller cooling mechanism is configured for each cooling section, and the flow of cooling water is adjusted. Independent cooling control over different cooling sections of the roller is achieved, and the plate shape quality of a titanium plate is improved.

The invention relates to a hot continuous rolling strip steel plate shape control method and device and electronic equipment. The method comprises the steps that plate blank PDI data, equipment parameters and model parameters are read; calculating speed, temperature and thickness parameters of each finish rolling rack based on a finish rolling model; the roll bending force set value of each rack is calculated, and the roll bending force reference value, the convexity self-learning distribution value, the straightness self-learning distribution value and the operator intervention value of the SAMP model table are superposed in response to the situation that the rolling specification is not replaced, so that the roll bending force set value is generated; in response to replacement of steel types, thickness or width specifications, on the basis of superposition of non-replaced specifications, a roll bending force difference value of the SAPP model table and the SAMP model table is introduced to be multiplied by a dynamic adjustment coefficient, and a roll bending force set value is generated; a roll bending force set value is issued to an execution system at the finish rolling inlet moment; and the actual convexity and straightness of the finish rolling outlet strip steel are collected, target values are compared, and the set value of the next plate blank is corrected through self-learning. The method improves the target convexity and straightness hit rate of the hot-rolled strip steel.

The invention provides a cold-rolling mill rolling force prediction and self-adaptive control method based on multi-sensor fusion, and relates to the technical field of cold-rolling mill control, and the method comprises the steps: collecting sensor technological parameters, constructing a parameter incidence matrix through a graph attention network, reconstructing a working condition feature sequence, and predicting rolling force in combination with deformation area contact arc length change characteristics. And a control strategy is constructed based on the rolling force error value, control parameters are optimized, optimal process parameters are searched in a parameter optimization space in combination with constraint conditions and are converted into control instructions, the rolling force prediction accuracy and control precision can be improved, and the anti-interference capability of the system is enhanced.

The invention relates to the field of equipment control, in particular to a water tank penetrating air source self-adaptive adjusting method and system. The method comprises the following steps: acquiring a finishing mill start-stop signal and a wire rod head position signal in real time; dynamically calculating the residual distance from the head of the wire rod to the penetrating water tank, and generating a dynamic delay opening threshold value; the electromagnetic valve is controlled to open the pneumatic ball valve in a sectional manner; monitoring the covering length of the wire rod and converting the covering length into an equivalent gas resistance value; a dynamic pressure compensation amount is generated through a pressure closed-loop controller; the opening degree of the pneumatic ball valve is adjusted accordingly; when the finishing mill stops, the pneumatic ball valve is triggered to be closed, and a gradient pressure relief turn-off program is executed if necessary. By means of the distributed sensor array and the multi-mode recognition neural network, real-time accurate monitoring and analysis of the operation state of the pump set are achieved, dependence of post personnel is reduced, and the automation degree and stability are improved. And by dynamically optimizing the control strategy, the pump set system operates efficiently, energy waste is reduced, the energy utilization efficiency is improved, and the production cost is reduced.

This invention relates to a cold-rolling rib formation early warning method based on strip cross-sectional feature recognition, comprising steps such as data acquisition, region division, and separate judgment of each region. This invention's cold-rolling rib formation early warning method based on strip cross-sectional feature recognition can not only identify and warn of rib formation risks in cold-rolled coils, but also locate the specific length position and width range of the rib formation through this design content rule, providing a good early warning and reference function for subsequent cold-rolling processes.