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111 results about "Shape control" patented technology

Plate shape control method in rolling process of steel 30MnB5 for hot stamping forming

The invention relates to a plate shape control method in the rolling process of steel 30MnB5 for hot stamping forming. The plate shape control method in the rolling process comprises the working procedures of plate blank heating, rolling, cooling and coiling. In the cooling process, laminar cooling is used for cooling the strip steel to the coiling temperature, the cooling process is set as follows: cooling is performed in a sparse cooling mode, the cooling speed of the front section of laminar cooling is controlled to be 20-30 DEG C / S, the cooling speed of the rear section of laminar cooling is controlled to be 30-40 DEG C / S, and the total water amount of laminar cooling water spraying is set according to the ratio of the water amount of the front section to the water amount of the rear section of 1: 1.2-1: 1.4. The method is easy to implement, and the good strip shape control quality of the steel strip can be obtained through reasonable process design. And additional equipment and investment are not needed. By means of the method, the strip shape of the 30 MnB5 steel strip of the hot stamping forming steel of 5-10 mm is well controlled, the unevenness of the strip steel is not larger than 10 mm / m after the strip steel is flattened, and the wave shape judgment reduction amount and strip shape objection complaints caused by the poor strip shape are completely eradicated.
Owner:HBIS LAOTING STEEL CO LTD +2

Supporting structure for additive manufacturing of large-size thin-wall part

The invention relates to the technical field of additive manufacturing, and discloses a supporting structure for additive manufacturing of a large-size thin-wall workpiece, which comprises a hollow rib plate control frame, a variable density lattice support and a solid grid lattice distribution structure, the hollow rib plate shape control frame is arranged in the thin-wall part or in an opening area, the variable-density lattice support is arranged at a key part and an easy-to-deform area of the thin-wall part, and the solid grid lattice distribution structure is arranged in a stress concentration area or a sudden change surface area of the thin-wall part. A sawtooth cutting contact structure is arranged at the contact part of the cutter and the thin-wall part; according to the supporting structure for additive manufacturing of the large-size thin-wall part, mechanical linkage and thermal expansion self-adaption design of the movable assembly are utilized, transmission cooperation of a driving plate, a toothed plate and a gear is combined with the limiting effect of a bevel gear set and a limiting plate, an abutting plate is attached to the inner wall of a frame all the time, and gaps and stress concentration caused by thermal expansion are counteracted; and the supporting stability and the fitting degree are maintained.
Owner:XIAN YALAIRI ADDITIVE MANUFACTURING TECHNOLOGY CO LTD

Plate shape control method, device, equipment, medium and program product

The invention provides a plate shape control method, device and equipment, a medium and a program product, and relates to the technical field of plate shape control. The method comprises the steps that in the process of rolling a target plate blank through a target rolling mill, the plate shape of the target plate blank is controlled based on the target loading speed and the target vertical roll speed; wherein the target load speed is the target speed when the roller way of the target rolling mill is loaded, and the target load speed is higher than the original load speed of the roller way; the target vertical roll speed is the target speed of a vertical roll of the target rolling mill when the target plate blank is subjected to odd-pass rolling and a flat roll of the target rolling mill is loaded, the target vertical roll speed is lower than the original vertical roll speed, and the target vertical roll speed is determined based on the preset tension; the preset tension is determined based on a first torque when the vertical roller is loaded and a second torque when the flat roller is loaded. According to the plate shape control method, device and equipment, the medium and the program product, the rolled plate shape qualification rate of the target plate blank can be increased.
Owner:BEIJING SHOUGANG CO LTD

Ultrathin-specification ultrahigh-strength weathering resistant steel and plate shape control method

The invention discloses ultra-thin specification ultra-high strength weathering resistant steel and a plate shape control method. The ultra-thin specification ultra-high strength weathering resistant steel comprises the following components in percentage by weight: 0.06%-0.12% of C, 0.25%-0.5% of Si, 1.40%-2.1% of Mn, 0.18%-0.55% of Cu, 0.28%-1.25% of Cr, 0.05%-0.1% of Ni, less than or equal to 0.025% of P, less than or equal to 0.01% of S and the balance of Fe and other inevitable residual elements. The unevenness of the ultra-thin specification ultra-high strength weathering resistant steel is controlled within 5 mm / m. The method can ensure that the appearance plate shape of a product is flat and straight, and meets the special requirements of the fields of container steel and the like on high plate shape quality.
Owner:BAOSHAN IRON & STEEL CO LTD +1

Body surface appendage form control method of artificial intelligence toy, electronic equipment, readable storage medium and computer program product

The invention discloses a body surface appendage form control method of an artificial intelligence toy, electronic equipment, a readable storage medium and a computer program product, and belongs to the technical field of intelligent terminals. The method comprises the following steps: acquiring target situation data, wherein the target situation data comprises at least one of the following data: interaction state data of a user, environment state data of the user, interaction state data of an artificial intelligence toy and environment state data of the artificial intelligence toy; corresponding control reference data are determined according to the target situation data, and the control reference data are used for indicating the body surface appendage form corresponding to the target situation data; and controlling the shape of the body surface appendage of the artificial intelligence toy based on the control reference data.
Owner:ZTE CORP

A continuous production apparatus and method for marinating large yellow croaker

This invention relates to equipment for processing large yellow croaker, and more particularly to a continuous production apparatus and method for marinating large yellow croaker. The continuous production apparatus for marinating large yellow croaker includes a frame, a controller, a horizontal conveying mechanism, and a shape detection mechanism, a punching mechanism, and a marinating mechanism arranged sequentially along the feeding direction of the horizontal conveying mechanism. The shape detection mechanism is located above the horizontal conveying mechanism and is used to detect the shape of the belly and back of the large yellow croaker respectively. The controller is used to receive information sent by the shape detection mechanism and generate a belly punching feed table and a back punching feed table. The two punching mechanisms punch holes in the belly and back of the fish according to the belly punching feed table and the back punching feed table respectively. The marinating mechanism is used to store and marinate the punched large yellow croaker. The continuous production apparatus for marinating large yellow croaker provided by this invention not only facilitates full marinating of the large yellow croaker and improves the marinating effect, but also meets the punching accuracy requirements for different fish sizes and shapes, avoiding damage to the fish meat.
Owner:NINGDE CITY YUEHAI AQUATIC PROD

Plate shape control method for ultrahigh-strength low-alloy high-strength steel

PendingCN121344309AWork rollAlloy
The invention discloses a strip shape control method for ultrahigh-strength low-alloy high-strength steel. The production steps include smelting, continuous casting, hot rolling, acid rolling and continuous annealing. Aiming at the pain and difficulty problem that the shape of a low-alloy high-strength steel plate with the yield strength of 800MPa is not easy to control, structure property control is taken as a breakthrough, Nb + Ti is more than or equal to 0.085% and less than or equal to 0.110%, Cr is more than or equal to 0.15% and less than or equal to 0.50%, the in-roll strength difference is less than or equal to 50MPa, and the plate shape control difficulty in a flattening process is reduced; by taking reduction of wave heredity as a breakthrough, a combined measure of a coiling temperature of 550 + / -30 DEG C, a wedge mean value of + / -10 microns and an acid rolling reduction rate of 45-55% is innovatively provided, the acid rolling plate shape is stably controlled to be less than or equal to 20 IU, and the plate shape control difficulty of a leveling process is reduced; the plate shape control capability of the temper mill is remarkably improved through the matching design of the diameter of the working roll, the leveling elongation, the roll bending force distribution and the roll shifting rule by taking the exertion of the capacity of the temper mill as a breakthrough. The plate shape qualification rate of the low-alloy high-strength steel with the yield strength of 800 MPa is increased to 90% or above from 20% or below, and stable production is achieved.
Owner:МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД

Flat plate bacterial colony cutting adapter

The utility model discloses a plate bacterial colony cutting adapter, which relates to the technical field of fungus culture and comprises a cutting tube, a connecting rod, an elastic rod and a fixing block. The lower end of the cutting pipe is of a knife edge structure, the inner wall is rough, the cutting pipe is installed and connected to the front end of the rigid connecting rod, a rod body of the elastic rod is located above the connecting rod, and the tail end of the elastic rod and the tail end of the connecting rod are installed and connected with the fixing block. The front end of the rod body is bent downwards from the upper end opening of the cutting pipe to extend into the cutting pipe and is fixedly connected with a top ring located in the cutting pipe, and a notch is formed in the position, corresponding to the rod body, of the top of the side wall of the cutting pipe. The consistency of the diameter and the size of the transferred plate bacterial colony is controlled and ensured by the form of the cutting pipe, and meanwhile, the distance between the obtained bacterial colony area and the bacterial colony edge (the top end of the mycelium) can be controlled by adjusting the cutting position, so that the consistency of the cell age (culture time) and the mycelium uniformity (thin and dense) of the bacterial colony in the obtained area is ensured; and comparison between strains and varieties is facilitated.
Owner:ANHUI UNIV

A method for controlling the shape of a low carbon equivalent 355mpa grade normalized rolled thin gauge steel plate

The application discloses a shape control method for a low-carbon-equivalent 355MPa grade normalized rolled thin-gauge steel plate, wherein the soaking section furnace temperature of a heating furnace for a billet is 1080-1100 DEG C, the time is 45-60 minutes, the total in-furnace time is 250-300 minutes, the single-pass reduction of the last two passes of the billet finishing rolling is controlled to be 1-2mm, the steel plate is controlled to be cooled by using a laminar flow cooling system, the head shielding distance of the controlled cooling system is 500-700mm, the shielding coefficient is 0.8-1.0, the tail shielding distance is 900-1300mm, and the shielding coefficient is 0.5-0.7; and the acceleration of the controlled cooling roller is 0.004-0.006m / s 2 . The steel plate adopts a small straightening force mode, the straightening force is 15-18MK, the straightening speed is 0.3-0.8m / s, and the final straightening temperature is lower than 480 DEG C. The application solves the problems of poor flatness of the normalized rolled 355MPa grade thin-gauge low-alloy steel plate, low steel plate passing rate and influence on rolling efficiency.
Owner:ANGANG STEEL CO LTD

Sample shaping device applied to embedding machine

The utility model relates to the technical field of sample shaping devices of inlaying machines, in particular to a sample shaping device applied to an inlaying machine, which comprises an inlaying box and a box cover, a mechanical clamping structure is placed in the inlaying box, the mechanical clamping structure comprises two groups of arc-shaped plates which are oppositely arranged, and positioning holes are arranged on two sides of the arc-shaped plates. The two groups of arc-shaped plates penetrate through the positioning holes through the threaded rods and are fastened through the locking nuts, and the contact plates are fixed on the inner side walls of each group of arc-shaped plates, so that a metallographic sample can be hung between the two groups of arc-shaped plates, the threaded rods on the two sides can be locked through the nut structures during connection and fixation, and the specific distance or length can be adjusted through the nut structures. Compared with an existing metallographic inlaying structure, the device can be adjusted on site according to the sizes of different samples, it is guaranteed that the metallographic sample shaping control of the inlaying machine is accurate, and the metallographic inspection accuracy and the working efficiency are improved.
Owner:ANGANG STEEL CO LTD

Method and device for controlling deformation of composite material

ActiveCN121671056AAviationDeformation control
The invention discloses a deformation control method and device for a composite material, and belongs to the technical field of aviation equipment repair. The deformation control method of the composite material comprises the steps that a repairing layer material is laid on the surface of a pretreated to-be-repaired component, functional layers are sequentially laid on the outer surface of the to-be-repaired component, and the pretreated component is obtained; after an internal annular mold and the pretreatment part are assembled, a primary treatment part is obtained; sleeving the outer surface of the primary treatment part with a vacuum bag, sealing and vacuumizing to obtain a secondary treatment part; an external supporting mold is assembled outside the secondary treatment part, and a tertiary treatment part is obtained; and the third-time treatment part is subjected to high-temperature curing, and cooling and demolding are conducted after curing is completed. According to the deformation control method provided by the invention, a dual-mode cooperative shape control system is formed through the internal circumferential mold and the external supporting mold, and comprehensive improvement of repair precision, operation efficiency and application suitability is realized.
Owner:SHENYANG NORTHERN AIRCRAFT MAINTENANCE CO LTD

Electroplastic rolling method capable of implementing independent control in transverse zones

An electroplastic rolling method capable of implementing independent control in transverse zones. The positions of conductive copper rings in respective electroplastic shape control roller systems are determined on the basis of the positions of strip shape defects; by means of a control circuit, it is ensured that two electroplastic shape control roller systems and a strip form an electrical loop, such that electroplastic regulation is implemented in transverse zones along the strip; a variation in the plastic deformation resistance of the strip is determined on the basis of an impact matrix method, and a local heating temperature of the electroplastic shape control roller systems is then determined in view of a deformation resistance and temperature rheological curve relationship of the strip; and online temperature regulation in the direction of width of the strip is realized at an entry of a deformation zone by means of the electroplastic shape control roller systems.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Spout pouch

PendingCN122254184ABagsSacksThin membraneFlange
A spouted pouch is provided to suppress pouch breakage starting near the outer periphery of the pouch body. In the spouted pouch (110), the spout attaching film (130) has a flange opposing region (131) for the flange (171) of the spout (170) to be opposite each other, and the pouch body (120) has shape control seals (127) and (128) formed by fusing the portion of the spout attaching film (130) located on the inner side of the connecting seal (122) in the transverse direction (Xa) with a side film. The shape control seals (127) and (128) have portions located in the region between the flange opposing region (131) and the connecting seal (122) in the transverse direction (Xa).
Owner:TOYO SEIKAN KAISHA LTD

A method and system for shape control of a flexible robot

This invention relates to a shape control method and system for a flexible robot. The method inputs the desired shape of the flexible robot and the current tendon actuation data set into an offline-constructed shape Jacobian matrix estimation model to estimate the shape Jacobian matrix, obtaining the current shape Jacobian matrix and predicted motion velocity. The method then corrects the shape Jacobian matrix estimation model online by calculating the velocity error between the real-time motion velocity and the predicted motion velocity. Based on the online-corrected shape Jacobian matrix estimation model, the shape control problem of the flexible robot is constructed as a constrained quadratic programming problem. A neurodynamics optimizer is used to solve the quadratic programming problem to obtain the optimal driving command that satisfies the constraints, driving the flexible robot to achieve the desired shape. Therefore, this invention achieves high-precision shape control of a flexible robot while also considering adaptability and real-time computational efficiency.
Owner:FUZHOU UNIV

Plate-shaped object shape measuring method, plate-shaped object shape control method, plate-shaped object manufacturing method, plate-shaped object quality control method, plate-shaped object shape measuring apparatus, and plate-shaped object manufacturing facility

To provide a shape measuring method of a plate-like object, a shape control method of the plate-like object, a manufacturing method of the plate-like object, a quality control method of the plate-like object, a shape measuring device of the plate-like object, and a manufacturing facility of the plate-like object, capable of surely and stably measuring a shape, by reducing measurement abnormality of the shape of an edge part of the plate-like object, regardless of a manufacturing environment or a measuring environment of the plate-like object.SOLUTION: A shape measurement method for a plate-shaped object includes a first profile extraction step of extracting a first profile indicating a contour of a plate-shaped object from an image of an edge portion of the plate-shaped object, a first calculation step of calculating an index of a shape of the edge portion of the plate-shaped object from the first profile, a second calculation step of calculating a degree of discontinuity of the contour of the plate-shaped object as a measurement abnormality degree from the first profile, and a determination step of determining whether or not the index is normal from the measurement abnormality degree.SELECTED DRAWING: Figure 6
Owner:JFE STEEL CORP

Design method of four-way valve controlled AGC cylinder for flatness control of plate mill

ActiveCN116894304BImprove rewind speedMeet process requirementsGeometric CADServomotor componentsFour-way valveMechanical design
This invention provides a design method for a four-way valve-controlled AGC cylinder for planar shape control in medium-thick plate rolling mills, relating to the fields of hydraulic control and mechanical design technology. The method first calculates the piston diameter of the AGC cylinder based on the maximum rolling force of the mill and the maximum design working pressure of the AGC cylinder. The calculated piston diameter is then rounded upwards to determine the piston diameter D. Next, based on the relationship between the steady-state retraction speed of the AGC cylinder and the piston rod diameter, and the piston diameter D, the piston rod diameter is calculated. A lower limit for the piston rod diameter is calculated based on the strength requirements of the piston rod during rolling. Finally, the final piston rod diameter d is determined by the larger of the calculated piston rod diameter and the lower limit. The AGC cylinder designed based on this invention is beneficial for meeting the process requirements of hot rolling planar shape control and improving production line efficiency.
Owner:NORTHEASTERN UNIV CHINA

A manufacturing process for thick aluminum foil for PCBs

A production process for thick aluminum foil for PCBs involves controlling the casting and rolling zone thickness to 40-55mm, the thickness of the casting nozzle lip tip to 0.5-3mm, and the casting and rolling production speed to 680-850mm / min. Cold rolling: a 7mm thick billet is rolled to a finished product thickness of 0.125 / 0.15 / 0.17mm. The finished product undergoes straightening and bending to correct its shape, ensuring a 10-15I profile. When laid flat, the edge wave height does not exceed 3mm, ultimately yielding an aluminum foil with a tensile strength of 220-230MPa and an elongation of 4-7%. This process replaces the traditional 1100 alloy (0.4-0.6% iron content) with a 1060 alloy (0.2-0.35% iron content), reducing the viscosity of the molten aluminum. The reasonable Fe / Si ratio ensures that the tensile strength of the aluminum foil remains above 220MPa. By adjusting the appropriate liquid level, casting zone, and lip thickness of the casting nozzle, the horizontal lines generated during casting were resolved. By controlling the arrangement of processing passes and the roughness and convexity requirements of the production work rolls in the cold rolling process, the shape control was improved, and the product quality was greatly enhanced.
Owner:LUOYANG LONGDING ALUMINUM

Composite material preform torsion shape control device and control method and application thereof

The invention discloses a composite material prefabricated body torsion shape control device and a control method and application thereof.The composite material prefabricated body torsion shape control device comprises a first clamping set, a second clamping set and a bottom frame, the first clamping set and the second clamping set are installed on the bottom frame, the first clamping set clamps one side of a prefabricated body, and the second clamping set clamps the other side of the prefabricated body; the second clamping set clamps the other side of the prefabricated body, the first clamping set can rotate on the bottom frame, and the second clamping set can slide along the bottom frame. Compared with the existing method of pouring resin or smearing shaping powder after torsional deformation of a mechanical instrument, the torsion shape control device for the composite material preform is convenient for subsequent microstructure test, saves the time for waiting for shaping, avoids the problems of unclear scanning and the like caused by change of the original structure due to addition of the resin and the shaping powder, and improves the test efficiency. And the design of the shape control tool is lighter, more exquisite and more scientific.
Owner:TIANJIN POLYTECHNIC UNIV

A method for improving the shape control of a crack arrest steel plate

The application provides a control method for improving the shape of a crack arrest steel plate, comprising: (1) heating system control: determining the furnace time and soaking temperature according to the thickness of the billet, so that the upper surface of the billet is 25-40 DEG C higher than the soaking temperature of the lower surface; (2) final pass reduction control: in the rough rolling stage, the spread pass sledge ratio is +1.0 to +3.0, and the longitudinal rolling pass sledge ratio is +3.0 to +5.0; in the finish rolling stage, the rolling force of the last two finish rolling machines is 4800-5600 t, the last pass reduction is greater than or equal to 4.5 mm, and the sledge ratio is +3.0 to +6.0; the finish rolling speed is less than or equal to 3 m / s; and (3) straightening parameter control: according to different thicknesses of the steel plate, adopting a pre-straightening machine 1-pass straightening process and a hot straightening machine 4-pass straightening process matched with the steel plate.
Owner:ANGANG STEEL CO LTD

A flexible material size control device

The application discloses a flexible material size control device, which comprises a clamping ring assembly, a base core shaft, a base and a limiting block. The inner surface of the clamping ring assembly is tightly combined with the flexible material, and is used for centripetal compression and shape control of the flexible material. The base core shaft is composed of two cylindrical segments with different diameters, and the transition between the two cylindrical segments is a right angle surface. The outer circumferential surface of the small-diameter cylindrical segment is matched with the small gap of the inner surface of the product, and is used for radial positioning of the product. The transition right angle surface is combined with the end surface of the product, and is used for axial positioning of the product. The base is used for connecting the clamping ring assembly and mounting the limiting block. The limiting block is a cuboid structure, and one end is a round head, which is used for angular positioning between the base and the clamping ring assembly. The application can meet the requirements of flexible material compression and shape setting, and ensure the size and surface quality of the flexible material.
Owner:BEIJING POWER MACHINERY INST

Deformation control adjusting device based on temperature control type shape memory alloy

The utility model discloses a deformation control adjusting device based on a temperature control type shape memory alloy, which comprises an opening and closing petal body which is arranged to be in a flower petal body shape made of a temperature control type shape memory alloy material and is used for assembling to form a controllable deformation opening and closing type framework; the heating film layer is attached to the opening and closing petal body in a matched mode, and the heating film layer is connected with the power supply assembly through a circuit and used for correspondingly regulating and controlling the temperature of the opening and closing petal body. The technical problems that in the prior art, the opening and closing actions and the appearance of a flower opening and closing interaction device are greatly different from the shape of a real flower, the overall structure is complex, and miniaturization and microminiaturization are difficult to achieve are solved.
Owner:BEIJING YINGCAI INTELLIGENT TECH CO LTD

Efficient shape control rolling device for multi-layer composite liquid cooling plate and working method of efficient shape control rolling device

The invention relates to a multilayer composite liquid cooling plate efficient shape control rolling device and a working method thereof.The multilayer composite liquid cooling plate efficient shape control rolling device comprises a rack, rotating rollers and a rolling mechanism, the multiple rotating rollers are installed in the rack, supporting rotating frames are rotatably installed in the two ends of the rack correspondingly, and translation seats are installed on the two sides in the rack correspondingly; two translation seats are installed on the rack, sliding frames are installed on the two translation seats in a sliding mode, an overturning seat is rotatably installed between the two sliding frames, a sliding seat is installed on the overturning seat in a sliding mode, a pulse laser head and a scanning head are installed on the sliding seat, and a plurality of rolling mechanisms arranged in sequence are installed at the end of the rack. The production line is simple in structure, integration and high efficiency are achieved, a plurality of independent procedures such as pretreatment, preheating, rolling and detection are integrated into a continuous production line, the intermediate transfer time, the waiting time and the secondary treatment time are greatly shortened, and the production efficiency is remarkably improved.
Owner:JIANGSU ALCHA ALUMINUM CO LTD

Rolling method for stainless steel cold plate with limit specification

The invention belongs to the technical field of stainless steel cold rolling, and relates to a rolling method for a stainless steel cold plate with an extreme specification. Designing a roll shape; developing a rolling process; controlling a rolling process; and the plate shape control operation is standard. The mechanical property of the stainless steel cold plate with the limit specification of 0.1 * 1500mm rolled according to the method meets the requirements, the thickness precision reaches + / -0.005 mm, and the plate shape standard deviation is smaller than or equal to 5I. According to the twenty-high rolling mill, the original design limit of the SUNDWING SFC 20H-406 * 1625 model twenty-high rolling mill is broken through.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

T-shaped groove vibration suppression and shape control method based on force position sensing

The invention discloses a T-shaped groove vibration suppression and shape control method based on force position sensing, and relates to the technical field of workpiece machining. The vibration suppression and shape control method comprises the steps that actual cutting force and vibration displacement signals in the T-shaped groove machining process are collected through a sensor set; constructing a digital twinborn model and performing local grid encryption on a key region of the digital twinborn model; the real dynamic displacement of the tool and the workpiece is dynamically reconstructed through the combined state observer; superposing the displacement of the cutter and the workpiece to obtain comprehensive vibration, and generating a compensation control signal; meanwhile, a machining deformation error is predicted based on a simulated twinborn model, a dynamic compensation path is generated in combination with comprehensive vibration and decomposed into a path compensation component and a vibration compensation component, the path compensation component and the vibration compensation component are fused with a basic path and a compensation control signal respectively, and collaborative optimization of vibration suppression and geometric error compensation is achieved. Unified control over high-frequency vibration and geometric deformation in the T-shaped groove machining process is achieved, and machining precision and surface quality are improved.
Owner:CHENGDU JIAODA PUER IND CO LTD

Metal-strip warped-shape control method, metal-strip manufacturing method, and metal-strip warped-shape control device

A metal-strip warped-shape control method for controlling an exit-side warped shape, which is a warped shape of a metal strip downstream of a temper rolling mill in a metal-strip manufacturing facility, the metal-strip manufacturing facility including the temper rolling mill that corrects a shape of the metal strip continuously conveyed, and a warped-shape measurement device that measures a warped shape of the metal strip, the metal-strip warped-shape control method including: calculating an approximation curve for the warped shape of the metal strip using an approximation method selected from parabolic approximation, circular arc approximation, and envelope approximation; and setting operating parameters of the temper rolling mill that can reduce a warp height of the exit-side warped shape based on the approximation curve that is calculated.
Owner:JFE STEEL CORP

Plate shape control method for steel plate with width exceeding 4400 mm

The invention belongs to the technical field of ferrous metallurgy, and discloses a plate shape control method for a steel plate with the width larger than 4400 mm. The plate shape control method comprises the following steps that S1, a walking beam type heating furnace is adopted for conducting partition heating on a plate blank, and the in-furnace time is controlled to range from 1.3 min / mm to 1.5 min / mm; s2, a normalizing rolling technology is adopted for rolling the steel plate, and the finish rolling temperature is controlled to be 850 + / -20 DEG C; s3, the steel plate is subjected to 9-pass finish rolling; s4, a nine-roller hot straightening machine is adopted for conducting one-pass straightening on the steel plate; and S5, the steel plates are cooled to 450 DEG C to 500 DEG C, offline stacking and slow cooling are conducted, the stacking time ranges from 24 hours to 26 hours, the stacking position of the steel plates is controlled in a micro-convex mode, and the convexity of the stacking position is controlled to be 5 mm / 5 m. By means of the plate shape control method, the plate shape unevenness of the ultra-wide plate with the width larger than 4400 mm can be controlled to be 1 mm / 1 m or below, and the unevenness of the whole width in the width direction is 5 mm or below.
Owner:JIANGSU SHAGANG STEEL CO LTD +2

Methods, devices, media, and reversible rolling mills for strip steel shape control

This application relates to the field of reversible rolling mill control technology, and discloses a method, device, medium, and reversible rolling mill for strip shape control. The method includes: acquiring standard strip shape deviations and standard speed indicators at different positions of a standard strip at intervals, acquiring the corresponding standard strip adjustment methods and saving them as the Gth data entry; acquiring the current strip shape deviation and current speed indicator; acquiring the Gth data entry using the current strip shape deviation and current speed indicator, and calculating the similarity between the current strip shape deviation and the standard strip shape deviation; if the similarity is less than a set value, adjusting the current strip using the standard strip adjustment method of the Gth data entry; if the similarity is greater than the set value, selecting the current strip adjustment method based on the current strip shape leveling deviation value and the current values ​​of the four outer channels of the edge, according to the set strip adjustment method. This application can improve the response speed and control efficiency of the reversible rolling mill for current strip shape control.
Owner:SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD

One-step forming driver airbag with differentiated drawstrings, method and system

The invention discloses a one-time forming driver airbag with differentiated drawstrings, a method and a system, and belongs to the technical field of automobile safety. The air bag comprises a seamless air bag body which is manufactured by adopting an integrated forming process, and two ends of the seamless air bag body are respectively provided with a petal-shaped protruding structure which is upwarped when the air bag is inflated. The core of the invention is that the middle part of the air bag is provided with a continuous strip-shaped area, and the area is divided into nine sub-areas adopting different rectangular or square organization structures to form a shape control matrix. And in combination with differential drawstring systems which are connected between the front and back surfaces of the air bag and have unequal lengths, the design can guide the air bag to accurately form an asymmetric three-dimensional wrapping form during air inflation, so as to actively adapt to the collision posture of a driver. And the air bag is formed by blending polyester, nylon and aramid fiber with specific parameters. The source of the airbag form is controllable, the problems that a traditional airbag protection form is single, and the seam reliability is poor are solved, and the advantages of being excellent in protection performance and low in cost are achieved.
Owner:JIANGSU HUITAI AUTOMOBILE TECH CO LTD

A processing method of a semi-circular reference of a thin-walled sector structure part and a bushing

ActiveCN120940677BMeet the process requirementsEffective control of processing requirementsCircular referenceMachine
The application discloses a kind of thin-walled sector structure part semicircle reference processing method, bushing, method includes: based on the structure of part Formulation include heat control process route of shape control;Semi-finishing is carried out to part;After semi-finishing, the part is clamped using heat shape control special fixture, heat shape control processing is carried out, and preliminary control heat shape control after part is obtained;Finish machining fixture is installed on lathe and is aligned;After heat shape control, the part to be machined is clamped on the aligned finish machining fixture, and the part to be finished is fixed by aligning inner hole and applying floating support;Install machine clamp tool and select finish machining blade, set parameter;Semi-circular reference plane of part is carried out finish machining cutting, and the combined tool path of inside-out and outside-in is used to tool path, and processing is completed.The application effectively controls the deformation amount before part finish machining, enhances the clamping rigidity of semicircular weak place, makes machining semicircular reference plane positioning reliable, and improves the quality and efficiency of processing.
Owner:AECC AVIATION POWER CO LTD

A method for controlling rolling of a wide thin gauge 300 series stainless steel cold sheet

The application discloses a rolling control method for wide and thin 300 series stainless steel cold plates, and comprises the following steps: S1, controlling the centering offset of the steel coil during feeding; S2, selecting the middle roll of the rolling mill according to the width of the coil; S3, controlling the deformation rate, rolling pass and work roll roughness parameters; and S4, controlling the actual stress deviation value of the edge and middle plate shapes. Through the control of the feeding centering offset, the optimization of the rolling roll shape, the optimization of the rolling process and the optimization of the plate shape control, the problems of the off-center coil shape and the broken strip can be effectively improved, the production qualified rate of the product can be improved, and the production cost can be reduced.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD