237results about "Measuring devices" patented technology

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 present disclosure provides a rolling mill operation state data processing method, device and system, which can be applied to the field of rolling mill equipment detection. The method comprises: receiving operation state data related to a target rolling mill in operation, the operation state data comprising a vibration data sequence and a temperature data sequence in an operation period; based on a multi-level expansion rate mechanism, extracting features from the vibration data sequence and the temperature data sequence to obtain vibration features and temperature features, the vibration features and the temperature features representing the running state change trend of the target rolling mill in multiple time scales; and detecting the equipment state of the target rolling mill by fusing the vibration features and the temperature features to obtain a target detection result representing the equipment state of the target rolling mill.

The present application relates to hot strip production process technical field, specifically to a kind of coreless hot coil box open tail folding processing method, comprising: receiving intermediate blank thickness, for the equipment preset of hot coil box;After hot coil box completes coiling and uncoiling, when the hot metal detector HMD at the outlet of hot coil box becomes OFF state, according to the distance of slab tail reaching flying shear is calculated based on speed parameter;The thickness of slab tail is detected using pinch roll at the outlet of hot coil box;When the thickness of slab tail is detected and the thickness mutation value reaches the threshold range of preset, it is determined that tail uncoiling fails, and an abnormal instruction is sent to flying shear cutting system;After flying shear cutting system receives the abnormal instruction, on the basis of preset cutting gauge length, increase compensation length, generate updated tail cutting length;Flying shear cutting system starts cutting according to updated tail cutting length, so that actual cutting position avoids folding part of slab tail.The present application avoids flying shear blade collapse even mill broken roll accident.

Control system for cold rolling mills to improve sheet metal thickness uniformity. Sensors monitor the state of the cold rolling mill by measuring (i) roll eccentricity, (ii) roll slips during mill operation, (iii) mill disturbances from roll speed or roll force manifestations, and (iv) unknown disturbances referred to as process noise. The controller analyzes data from sensors to compensate. Data collected during the mill operation by the sensors are delayed in reaching the controller. This communication delay is accounted for by using a filter. Since an objective of the controller software is dynamic identification of eccentricity of the back up rolls, which is non-linear by nature, an Extended Kalman Filter may be used.

The application provides a kind of interlock control method of fixed-width press, comprising the following steps: S1, collecting the running state signal of heating furnace area and roller area;S2, according to the running state signal, determine the current working condition is real tapping state or test state;S3, the judgment result of S2 is used as the enabling condition of fixed-width press area receiving secondary process control system setting data, only in real tapping state, allow fixed-width press area to receive and execute secondary setting data, shield secondary setting data in test state;S4, the judgment result of S2 is used as the interlock condition of fixed-width press automatic position control (APC) program activation, only in real tapping state, release APC program lockout to allow equipment action, in test state, forcibly lock APC program to prohibit equipment action.The application can guarantee the safety of equipment operation, improve the stability and controllability of production process.

The method for generating a steel sheet material prediction model according to the present application is a method for generating a steel sheet material prediction model in a steel sheet cooling device, the steel sheet cooling device including a water cooling device that cools a steel sheet by spraying cooling water on the heated steel sheet, and a temperature measuring device that measures the surface temperature of the steel sheet during cooling, wherein the method for generating a steel sheet material prediction model includes the step of generating a steel sheet material prediction model after the steel sheet passes through the cooling device by machine learning using a plurality of learning data sets that include, as input performance data, surface temperature information data sets including measured data of the surface temperature at a reference point set in advance on the steel sheet and measured data of the surface temperature at a reference point set based on the reference point, and, as output performance data, material information of the steel sheet after passing through the cooling device at a position corresponding to the reference point on the steel sheet corresponding to the input performance data.

The utility model provides a device for controlling the uniformity of strip steel width belongs to the strip steel production technical field. Including the base for installing in the strip steel export position, the top of base is provided with the workbench of liftable adjustment, the side of workbench is slidably installed with two adjustable interval's fixed base, two fixed base all are fixed with vertical guide roller, and the upper end face both ends of workbench are fixed with two support columns, and the top of two support columns is installed with infrared range finder. The utility model, not only can control the adjustment strip steel width, moreover can real -time monitoring adjusted data, and according to real -time data to ensure that the strip steel width is always uniform, and the use effect is good.

This invention belongs to the field of optical inspection technology for roll surfaces, and specifically discloses a laser optical inspection device for roll surfaces. This device includes an operating table with a mounting base on top, on which a workpiece is mounted. A mounting frame, driven by a drive structure, is positioned behind the mounting base and has two laser probes mounted on it for inspecting the workpiece. This invention uses a drive mechanism to switch between the two laser probes on the mounting frame, allowing the probes to inspect cold and hot rolls separately without frequent downtime for adjustments, thus improving inspection efficiency. Furthermore, after switching, the mounting frame is supported and fixed by a support structure, improving the stability of the mounting frame and laser probes after switching. This prevents probe misalignment and shaking caused by equipment vibration or roll rotation, avoiding optical path deviation and increased measurement errors, and ultimately improving inspection accuracy.

This invention discloses a production control method for ultra-thin-walled steel pipes, including obtaining first specification parameters of a solid round billet and second specification parameters of the finished steel pipe; sawing the solid round billet according to the second specification parameters to form short round billets; feeding the short round billets into an annular furnace, and sequentially passing through a heat recovery section, a preheating section, a preheating section, a heating section (sections one to four), and a soaking section for heating; monitoring the temperature of the short round billets in real time to ensure that the center temperature of the short round billets reaches a first temperature threshold. The first adjustment refers to the initial adjustment of the burner temperature based on the analysis results of the first image, used to address anomalies in the surface temperature of the short round billets; the second adjustment refers to the secondary adjustment of the burner temperature based on the analysis results of the second image, used to address anomalies in both the surface and internal temperatures of the short round billets, which helps to eliminate local non-uniformity in the temperature field of the short round billets on the surface and inside.

The utility model discloses a cold-rolled stainless steel roll surface defect detection device, including detector, the periphery one side fixedly connected with conveying frame of detector, the inside both sides fixedly connected with adjusting mechanism of conveying frame, the inside both sides top of adjusting mechanism is rotatably connected with the roller wheel. The utility model discloses the setting of adjusting mechanism, when the device is to use, the inside one end installation of conveying frame has been installed on the connecting ring, the inside installation of connecting ring has been installed on the roller wheel, the bottom installation of connecting ring has been installed on the hydraulic telescopic handle, and the roller wheel of hydraulic telescopic handle can be with the bottom height adjustment, has played the role of corresponding adjustment according to the external steel band thickness, avoided the adjustment of the steel band thickness according to the external steel band, made the straightening not enough, and the steel band of bending still can make the distance of detection probe and steel band surface change, influence detection signal's stability and accuracy.

The utility model discloses a kind of eighteen roller thrust wheel state detection devices, belong to thrust wheel technical field, comprising: driven wheel, driven wheel and the thrust wheel rolling connection in the thrust structure for the axial limiting of work roll in eighteen roll mill;Vibration probe, vibration probe is connected with thrust structure, for detecting the vibration amplitude of thrust structure;And hall component, hall component includes: hall probe and magnet, magnet is located on the circumferential side wall of driven wheel, hall probe is spaced apart from driven wheel, and hall probe is used to detect the rotation from thrust wheel.In the case where not damaging thrust wheel, the real-time monitoring of thrust wheel state is realized, the problem of various benefit loss caused by rolling mill thrust wear is solved, the rolling mill thrust wear and ablation are prevented, personnel casualties and property losses caused by safety accidents are avoided due to equipment failure, the equipment is maintained in time, the product failure rate is reduced, the product quality is improved, and the production efficiency is improved.

Even when vibrations are occurring in the metal strip, the change in the strip's elongation distribution can be evaluated with high accuracy. [Solution] In the acquired image, the distance traveled in the rolling direction by the upstream and downstream pixel points constituting the upstream boundary of the reflected light region is determined, and the reflected light region is divided into j sections in the plate width direction to form divided regions. For each divided region, the average travel speed, the number of sign reversals, and the fluctuation frequency are determined, and the average value of the fluctuation frequency of the upstream pixel point and the fluctuation frequency of the downstream pixel point is used as information corresponding to the average fluctuation frequency of the upstream and downstream pixel points of the reflected light region, and this corresponds to the position of the center of the divided region i in the plate width direction. When the value indicating the position in the plate width direction is taken as a variable x, the position in the plate width direction within the plate width range of the region in the image is normalized to the range -1≦x≦1, and the value of the information is used as an index corresponding to the rolled plate elongation distribution in the plate width direction obtained from the (k)th image, and its coefficient is determined by applying it to a Chebyshev polynomial, and the coefficient C1' of the first term is transmitted as the detection result signal of the rolled plate elongation distribution of the first component in the plate width direction of the (k)th image.

This invention belongs to the field of non-oriented silicon steel technology and discloses a method for improving the edge quality of hot-rolled strip steel of high-grade non-oriented silicon steel, including the following steps: 1) setting vertical rolls at the entrance of each stand of the finishing mill and giving a single-sided reference side pressure P. 基 ;2) Detect F i The real-time temperature of the strip at the frame inlet is used to obtain the lateral pressure coefficient L in the length direction. i And the lateral pressure coefficient W in the width direction i ;3) According to F i The thickness H of the strip at the frame entrance is used to obtain the thickness lateral compression coefficient H. i ;4) Select the compositional lateral pressure coefficient X based on the sum of the percentage contents X of Si and Als in the steel. i ;5) Calculate F i Real-time single-sided side pressure P of the vertical roller at the frame entrance i =P 基 ×L i ×W i ×H i ×X i The side pressure is dynamically adjusted based on the calculation results. This invention dynamically adjusts the side pressure of the vertical rolls at the entrance of each stand in the finishing mill to correct strip deviation and improve edge cracks, thereby achieving optimal edge quality.

A tension control apparatus controls tension of the material to be rolled when the material to be rolled passed through the final rolling stand of the finishing mill is coiled on a mandrel through pinch rolls. The tension control apparatus is configured to switch rotational driving of the mandrel between speed control and current control. The tension control apparatus includes a selection unit configured to compare torque necessary for the speed control and torque necessary for the current control, and to select small torque as final torque, and an integrator configured to integrate an output of the speed control, and further includes a limit setting unit configured to set, to the integrator, a limit corresponding to a tension reference. The tension control apparatus is configured to prevent an output of the integrator from being saturated.

The application provides a wire coil type control method and system, relates to the technical field of a steel rolling device, and comprises the following steps: issuing a baffle control instruction through an operation interface; sending the baffle control instruction to a programmable logic controller (PLC); the programmable logic controller (PLC) comprehensively judges the baffle control instruction, field conditions, interlocking signals and limit signals, and outputs a control signal; the output control signal is applied to a baffle execution mechanism to drive the baffle to perform opening or closing actions; position feedback on the baffle execution mechanism, limit switches, running states and fault signals are fed back to the PLC in real time to form a position and state closed loop; and the PLC uploads collected baffle actual opening degrees, running states and fault information data to an upper picture. The method and system have remarkable advantages in production efficiency, cost control and safe operation.

The present application relates to the technical field of strip steel defect detection, and specifically discloses a hot-rolled strip steel surface defect detection method, device, equipment and storage medium, comprising: in the process of surface defect detection of strip steel on a roller bed by an industrial line scanning camera, offset analysis is performed on the strip steel on the roller bed, the offset degree of the strip steel on the roller bed is evaluated, the offset situation of the strip steel in distance and angle is determined, after accurate coordinate correction of the collected image, the actual position of the defect on the strip steel surface can be improved during surface defect detection, the defect position judgment error caused by offset is avoided, and the tension control of the roller bed can also be adjusted according to the offset situation of the strip steel, so that the interference degree of the surface defect detection of the strip steel caused by the offset of the strip steel is reduced while reducing the wear of the roller bed.

This invention discloses a method, apparatus, electronic device, and medium for analyzing strip tension. The method includes: collecting tension information of strip steel on a target production line within each preset scanning cycle; calculating the tension fluctuation rate based on the collected tension information; determining whether the tension fluctuation rate is within a target range, where the target range is one of multiple preset fluctuation rate ranges; if so, incrementing the tension fluctuation count in the target range by 1; and determining the strip tension fluctuation status based on the tension fluctuation counts for each of the multiple fluctuation rate ranges. This method enables online analysis of strip tension fluctuation, automatically analyzing strip tension fluctuation data according to a unified standard, which helps improve the accuracy of the tension fluctuation analysis results.

The application relates to the field of titanium alloy production and discloses a titanium alloy disc round preparation method for eliminating overheated core structure, which comprises the following steps: sequentially adopting a rough rolling mill set, a medium rolling mill set, a finishing rolling mill set, a reducing sizing mill set and a high-speed wire rolling mill set for rolling; the rough rolling mill set comprises a front rack, a middle rack and a rear rack which are sequentially arranged along a rolling direction; for the rough rolling mill set, the deformation amount of the middle rack is controlled to be greater than the deformation amounts of the front rack and the rear rack; the finishing rolling mill set comprises multiple racks and roller tables arranged between adjacent racks; for the finishing rolling mill set, the running speed of the roller table is dynamically adjusted based on a target temperature difference between a core and a surface layer of a rolled piece after finishing rolling, the length of the roller table, the diameter of the rolled piece on the roller table and the starting temperature of the rolled piece on the roller table. The titanium alloy disc round core overheated structure can be effectively eliminated.

This application relates to the fields of mechanical engineering and automated inspection technology, and discloses a method and system for detecting the edge drop of strip steel based on the collaborative operation of multiple measuring heads of edge drop gauges. It aims to solve the technical problems in existing technologies, such as spatial misalignment of data from multiple thickness gauges, distortion of the edge drop curve reconstruction, and inability to accurately reflect the thickness distribution of the same cross-section caused by the high-speed operation and speed fluctuations of the strip steel. The method includes: synchronously acquiring thickness data using multiple non-contact thickness gauges arranged in a linear array; obtaining the actual displacement of the strip steel using a high-resolution rotary encoder to establish a spatiotemporal mapping relationship between the thickness data and the physical cross-section; reconstructing a distortion-free cross-sectional thickness distribution curve using a dynamic interpolation algorithm based on a preset sampling interval, and calculating the edge drop value. This application significantly improves the accuracy and dynamic response capability of edge drop detection through a synchronization mechanism and interpolation reconstruction based on the actual displacement of the strip steel, providing high-fidelity data support for strip shape control.

This utility model discloses an integral bending roll cylinder pad block device, including a frame, with lower roll bearing seats at both ends of the frame, and pad blocks on the upper surfaces of the two lower roll bearing seats; a lower roll is rotatably mounted between the two lower roll bearing seats, and an indicator ring is fixedly sleeved on the tail end shaft of the lower roll. This utility model replaces two independent pad blocks with a single integral bending roll cylinder pad block. The integral pad block is made of high-strength, wear-resistant material and is formed by precision casting or forging. Surface hardening treatment is applied to the contact surfaces of the integral pad block with the piston rod and the working roll bearing seat to improve surface hardness and wear resistance, reducing wear and deformation. High-precision positioning bosses are provided on the integral pad block, corresponding to grooves on the lower working roll bearing seat, ensuring accurate positioning of the pad block during installation and preventing displacement during rolling.

This invention discloses a multi-dimensional monitoring and control system for the closure accuracy of a ring rolling mill, relating to the field of ring rolling mill quality monitoring technology. It includes: a data acquisition module, which arranges temperature, pressure, displacement, and laser ranging sensors on the contact surface of the ring rolls to form a fully covered monitoring network, and uniformly partitions the contact surface according to the rolls; a quality monitoring module, which obtains the thermo-stress coupling coefficient through a thermo-stress coupling calculation strategy; a closure prediction module, used to establish a closure state prediction model, equipped with a vibration-closure influence strategy, using the thermo-stress coupling coefficient and stress distribution as input data, and outputting a predicted closure accuracy value; and a dynamic parameter control module, used to extract the predicted closure accuracy value and automatically adjust the ring rolling mill control parameters. This invention solves the problem of difficulty in accurately capturing and quantitatively describing the impact of vibration on the accuracy of the prediction model and the closure accuracy during the ring forging process caused by equipment vibration.

The present invention provides a method and control device for controlling the meandering of a rolled material, which can accurately detect the edges of the rolled material and perform high-precision meandering control of the rolled material, regardless of disturbances such as steam and scale. [Solution] The method includes the steps of: detecting the edge coordinates of the rolled material from images continuously captured in the longitudinal direction of the rolled material using an area camera; calculating the amount of meandering of the rolled material based on the edge coordinates of the rolled material; calculating the difference load between one side and the other side in the width direction of the rolled material at the rolling stand; calculating a meandering amount leveling control amount based on the amount of meandering and a difference load leveling control amount based on the difference load, and determining a leveling control amount based on these; and performing leveling control of the rolling stand based on the leveling control amount. The step of detecting the edge of the rolled material involves obtaining the luminance differential value in the width direction of the rolled material from the captured image, finding the coordinate where the integrated differential intensity value obtained by integrating the luminance differential value in the longitudinal direction of the rolled material is maximized, and detecting the edge coordinates of the rolled material based on this coordinate.

The application relates to a full-automatic distribution method of finishing mill load, which comprises the following steps: load correction determination, F1 rolling force correction, automatic load correction, load relativization calculation and the like. The full-automatic distribution method of the finishing mill load can automatically calculate the load distribution of the finishing mill, reduces on-site manual intervention, and achieves the effect of full-automatic rolling; the load distribution model table of the expert rule base can be modified and optimized outside the model, has strong maintainability, and reduces the risk of influencing on-site rolling due to maintenance of the expert base; a manual intervention window is reserved, and sudden on-site change maintenance operation can be realized.

The present application relates to the technical field of metal material processing, in particular to a high alloy seamless steel pipe cross piercing process optimization method, the high alloy seamless steel pipe contains C 0.08-0.12%, Cr 16-18%, Ni 10-14%, Mo 2-3% by mass percent, the balance is Fe and inevitable impurities, and specifically includes the following steps: S1 ring furnace heating: high alloy continuous casting round pipe billet is loaded into a ring heating furnace, three-stage gradient heating is adopted, the preheating section temperature is controlled at 850±20 DEG C, the heating section temperature is controlled at 1180±15 DEG C, the soaking section temperature is controlled at 1220±10 DEG C, the total heating time is 3-4 hours, and the pipe billet core surface temperature difference is ensured to be ≤30 DEG C.The high alloy seamless steel pipe cross piercing process optimization method realizes accurate prediction and dynamic collaborative optimization of high alloy steel pipe cross piercing process parameters, significantly improves the wall thickness uniformity and inner surface quality of the piercing shell, effectively inhibits the generation of cracks and other defects, and reduces the rolling load.

A plate shape prediction control method of eighteen-roller rolling mill, which comprises the following steps to be executed: (A) eighteen-roller rolling mill data acquisition; (B) eighteen-roller rolling mill roll system geometry parameter initialization and position calculation; (C) strip metal deformation model construction; (D) roll elastic deformation model construction; (E) roll system deformation coordination equation construction; (F) force and torque balance equation supplement; (G) plate shape prediction based on mathematical model; (H) optimization control based on GA algorithm.