8results about "Rare end control device" patented technology

The application belongs to the technical field of hot continuous rolling finishing rolling, and particularly relates to a control method for improving tailing in hot continuous rolling finishing rolling, which comprises the following steps: after gradient heating treatment of a slab, rough rolling and finishing rolling are performed; in the gradient heating treatment, the head heating temperature of the slab is 1180 DEG C to 1200 DEG C, the intermediate part heating temperature is 10 DEG C to 15 DEG C higher than the head heating temperature, and the tail heating temperature is 10 DEG C to 15 DEG C higher than the intermediate part heating temperature. The control method for improving tailing in hot continuous rolling finishing rolling provided by the application adopts a gradient heating mode, so that when the slab enters the finishing rolling, the temperature difference between the head and the tail of the slab is small, the tail is easy to deform, and thus the tailing risk is reduced.

The application relates to a control method of a hot rolling coiler, in particular to a control method of leveling a coiling pinch roll according to a center line deviation of a finishing mill tail part. The center line deviation of the finishing mill tail part is judged, the pinch roll pressure or roll gap leveling amount is calculated according to the judgment result of the center line deviation of the finishing mill tail part, the strip steel thickness, width and hardness group are combined, the working side pinch roll pressure or roll gap is automatically compensated on the basis of the original control through a program to calculate the leveling pressure or roll gap, the pressure or roll gap of the working side pinch roll is increased or decreased, the automatic leveling function of the pinch roll tail part is realized, and the control method of leveling the coiling pinch roll according to the center line deviation of the finishing mill tail part adjusts the pinch roll pressure or roll gap in real time through the center line deviation of the finishing mill tail part, the strip steel tail part deviation is corrected, so that the purpose of controlling the coiling quality is achieved.

A kind of intermediate blank rolling-out determination and control method based on buckling head control system belongs to control field.The method includes image recognition and quantitative calculation of intermediate blank buckling head by buckling head control system, data communication of the results of image recognition and quantitative calculation with rough rolling L2, type determination of head shape data of intermediate blank entry steel side by rough rolling L2 automatically;Then rough rolling L2 issues head shape mark to rough rolling L1, rough rolling L1 issues different roller operation instruction combined with different marks, and rough rolling L2 makes further protection to equipment combined with rolling force interlocking determination of rough rolling horizontal roller.The method issues different roller operation instruction according to different head shape marks, which helps to improve the reliability and robustness of existing control system, and can reduce the damage of intermediate blank buckling head to rolling equipment to the greatest extent.The method can be widely used in the field of slab rolling process control.

The application discloses a production method for improving control of large-size coil shape of a wire rod, and belongs to the technical field of iron and steel manufacturing. The method comprises a whole-process rolling procedure of hot-rolled wire rod: heating furnace adding, high-pressure water phosphorus removing, rough rolling, final rolling, on-line cooling, finishing rolling, on-line cooling, reducing-diameter rolling, wire laying, cooling control, coil collecting, finishing, packing, packaging, and warehousing. Through positioning of the head of the wire rod, the rolling speed is periodically changed in the whole rolling process, the wire laying machine swing period and the rotating speed are calculated in combination with the target wire diameter and the wire height, the wire diameter of the wire rod is periodically changed in the wire laying process, the large and small coils are staggered and uniformly distributed after the coil collecting, the required wire height is obtained under the condition of fixed wire rod weight, and the coil shape is regular after the packing. The application discloses a wire laying machine swing period calculation formula, is suitable for existing tooling equipment, effectively avoids the wire rod scratch and the problems of disorderly wire and knotting in the subsequent processing, satisfies the individualized requirements of different customers on the wire diameter and the wire height, and significantly improves the product quality and the production efficiency.

The utility model relates to a kind of automobile track roll forming device, belong to cold bending production line technical field, including lathe, the upper surface of the lathe is fixedly connected with mounting bracket, the inside installation of the mounting bracket is rolled assembly, the rolled assembly includes upper sleeve shell, upper roll, lower sleeve shell and lower roll, the upper sleeve shell, upper roll are all fixedly connected with connecting plate, longitudinal positioning assembly is installed on the connecting plate, the longitudinal positioning assembly includes receiving member and No. 1 positioning wheel, L-shaped plate is fixedly connected on the mounting bracket, horizontal fixing assembly is installed in the inside of L-shaped plate. By setting horizontal positioning assembly and longitudinal positioning assembly, metal plate is positioned before entering rolled assembly, to enter rolled assembly with accurate attitude, prevent the deviation of metal plate in the process of rolling, to improve product quality, and different thicknesses of metal plate can be rolled, to greatly improve the flexibility and functionality of equipment.

This invention provides a method for accurate tail-end tracking calculation in the hot continuous rolling process of seamless steel pipes, relating to the field of mechanical automation control technology. The method first acquires the continuous rolling mill equipment parameters, steel pipe continuous rolling process parameters, and signal transmission time; determines the tail-end tracking start time based on the continuous rolling process parameters; establishes a real-time position calculation method for the tail end of the rough tube based on the speed relationship between the rolls and the steel pipe; combines the steel ejection signals from each stand to form a tail-end tracking deviation index; if the index meets the accuracy requirements, position tracking prediction and compensation are performed on the next support steel pipe; if the accuracy requirements are not met, a stand segment deviation table and deviation grading judgment rules are formed, the problematic stand is located, and global or local parameter corrections are performed. This invention solves the problem of the inability to perform real-time tail-end tracking during the continuous rolling process of seamless steel pipes, enabling the calculation and prediction of the arrival time and position of the steel pipe tail at each stand, and establishing a rule system to determine accuracy.

The application discloses a high-strength steel coil inner circle indentation control method. The high-strength steel slab to be processed is subjected to hot rolling treatment to obtain a hot-rolled strip; the hot-rolled strip is subjected to ultra-fast cooling treatment to obtain a first cooling strip; the first cooling strip is subjected to laminar flow cooling treatment to obtain a second cooling strip; in the laminar flow cooling treatment, the laminar flow cooling treatment comprises first cooling treatment applied to a preset length region of the head of the first cooling strip and second cooling treatment applied to other regions of the first cooling strip; according to the hydraulic pressure increment of the pinch roll and the real-time roll gap increment, the biting time of the pinch roll is determined, and then the biting operation of the winding drum on the second cooling strip and the step control operation of the winding roll are performed, the winding treatment of the second cooling strip is completed, and a high-strength steel coil is obtained. According to the application, the inner circle indentation in the winding treatment process can be effectively eliminated.