Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

380 results about "Surface flatness" patented technology

Optimization method for parameterized design of steel formwork

The invention provides an optimization method for parameterization design of a steel formwork, and belongs to the technical field of building construction.The optimization method comprises the steps that a non-uniform rational B-spline surface parameter equation is established, steel formwork block parameterization design is carried out on the basis of the surface parameter equation, and a thickness distribution function and back arris spacing parameters are generated; constructing a support system mechanical parameterization model to determine support spacing optimization parameters and rod piece section sizes, and solving a double-layer decision-making system comprising an upper-layer template deformation minimization decision-making model and a lower-layer concrete surface flatness optimization response model by applying a game optimization algorithm; and a digital manufacturing instruction is generated to establish a mapping relation between a template number and geometric characteristics, a quality real-time monitoring system is established, configuration parameters are dynamically adjusted through a template adaptability evaluation function, and the technical problem that template deformation control is inaccurate due to the fact that design of the special-shaped concrete structure steel template lacks accurate parameterized optimization is solved.
Owner:CHINA CONSTR EIGHTH BUREAU DEV & CONSTR CO LTD +1

Method for grinding and cleaning wafer back under advanced process node

The invention provides a method for grinding and cleaning a wafer back under an advanced process node, and the method comprises the steps: 1, carrying out the polishing of the wafer back, and improving the surface flatness of the wafer back; and 2, cleaning the wafer back, and removing particle defects on the surface of the wafer back. And particles on the surface of the wafer back are removed, and the surface of the wafer back reaches a certain flatness, so that Focus Spot during subsequent photoetching treatment on the wafer is avoided.
Owner:SHANGHAI HUALI INTEGRATED CIRCUIT CORP

Injection mold for multi-color injection molding and production process thereof

PendingCN121133010AMachine visionWaste product
The invention discloses an injection mold for multicolor injection molding and a production process thereof, a set of machine vision on-line inspection system with pattern detection and surface flatness detection is integrated, pattern detection is performed on a specific part of a formed part A through optical screen detection, horizontal and vertical coordinates of an actual contour are compared with a preset range, and the pattern of the specific part A is detected. Then, the surface flatness of the part is objectively evaluated by analyzing reflected light distribution on the surface of the part, whether a qualified matrix is provided for second injection or not is judged, and key quality attribute judgment on the intermediate product A before second injection is achieved; according to the method, the waste of raw materials, energy and working hours caused by the fact that known waste products continue to be subjected to second injection is effectively prevented, meanwhile, the position precision and visual definition of final multi-color products at the joints of different colors are guaranteed, the defects of boundary line distortion, blooming and the like are overcome, and the production yield and the resource utilization rate are remarkably increased.
Owner:DONGGUAN OUYU PRECISION TECH CO LTD

Method for machining slotted hole by using milling cutter

The invention provides a method for machining a slotted hole by using a milling cutter, and relates to the technical field of PCB (Printed Circuit Board) machining, and the method comprises the following steps: determining slotted hole design parameters, selecting a matched hard alloy forming milling cutter according to a milling cutter specification experiment table verified by a large number of experiments, accurately calibrating a machining initial position through a CCD (Charge Coupled Device) visual positioning system, and adopting a milling cutter one-time drilling forming process. The method comprises the following steps: continuously cutting by matching with optimized cutting parameters, monitoring a cutting state in real time in a machining process, carrying out multi-dimensional detection on a slotted hole angle, surface flatness and dimensional precision after machining, adjusting parameters by referring to an error recording table when the slotted hole is unqualified, and carrying out re-machining through milling cutter structure optimization, a one-time forming process and standardized parameter matching. According to the invention, the defects of the traditional process are effectively eliminated, the processing specification is unified, the production efficiency and the product percent of pass are improved, the batch production requirements of high-precision PCB products are met, and the technical problems of large slot angle, concave-convex cutting points, uneven quality and the like in the traditional slot cutter processing are solved.
Owner:SUZHOU WUTONG ELECTRONICS CO LTD

Tunnel initial spraying concrete spraying quality detection method based on visual technology

The invention relates to the technical field of tunnel construction quality detection, in particular to a tunnel initial spraying concrete spraying quality detection method based on a visual technology, which comprises the following steps: S1, arranging an automatic cleaning device at the front end of equipment through multi-modal sensor fusion and a self-adaptive exposure denoising algorithm in combination with a multi-information joint correction technology, and performing multi-modal sensor fusion and self-adaptive exposure denoising; through original point positioning calibration, high-precision robust acquisition of three-dimensional coordinates and apparent vector data of the spraying and mixing surface in a complex environment is carried out. Through multi-modal sensor fusion, anti-interference processing and accurate calibration, high-precision robust acquisition of the spraying and mixing surface data in a complex tunnel environment is ensured, a reliable data basis is provided for subsequent detection and control, the spraying and mixing surface flatness control precision is effectively improved, the material loss rate is reduced, and the working efficiency is improved. And the strategy can be adaptively adjusted according to geological conditions and construction states, and the construction efficiency and safety are both considered.
Owner:CCCC SECOND HIGHWAY ENG CO LTD

Method and system for measuring surface straightness of medium-thickness plate through single-line laser

The invention discloses a single-line laser medium plate surface flatness measuring method and system, and belongs to the field of metallurgical equipment intellectualization, and the method comprises the steps: obtaining a laser line image of a to-be-measured medium plate, the laser line image being an image obtained by carrying out laser line projection on the medium plate through line lasers in the longitudinal direction and the transverse direction; collecting a cross point of the projected laser rays in two sequentially adjacent laser ray images, and correcting according to the cross point of the projected laser rays; performing image preprocessing on the laser line image, performing laser contour line extraction on the preprocessed laser line image, and obtaining an area surrounded by the extracted laser contour line; according to the area surrounded by the extracted laser contour line and the standard area, the surface straightness of the medium-thickness plate is obtained through calculation; the calculation precision and stability of the straightness of the medium-thickness plate are improved.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY +1

Anode roasting furnace cross wall building method

The invention relates to the technical field of carbon anode roasting furnaces, and provides an anode roasting furnace cross wall building method which comprises the steps that a cross wall deformation area is measured, and a cross wall is judged to be a deformed cross wall according to a comparison result between measured data and a preset deformation threshold value; the damage degree of the flame path wall in the adjacent direction of the deformed cross wall and the cross walls on the two sides is checked, and the deformed cross wall is dismantled layer by layer under the condition that preset requirements are met; the method comprises the following steps: cleaning broken bricks and aluminum silicate fiber scraps at the bottom of a furnace, inlaying and repairing a damaged base surface of the bottom of the furnace, smearing high-temperature cement gum with the thickness of 2mm-4mm on the base surface, laying refractory bricks with preset specifications on the base surface, laying aluminum silicate fiber blankets with the thickness of 20mm on two sides of each layer of refractory bricks, and detecting the perpendicularity of a newly-built cross wall when the building height reaches 1m; continuously constructing until a constructed target transverse wall is formed; and the wall surface flatness of the target cross wall is detected, and ultrasonic flaw detection is conducted on the target cross wall. According to the method, the transverse wall repairing quality and the furnace body stability are improved.
Owner:YUNNAN YUANXIN CARBON CO LTD

Workpiece supporting structure in annealing furnace

The utility model relates to the technical field of use of annealing furnaces, in particular to a workpiece supporting structure in an annealing furnace, which is used for supporting a workpiece main body to avoid damage to the surface flatness and integrity of the workpiece, so that the safety and the high efficiency in the production process are improved, favorable conditions are created for stable operation of a production line, and the production efficiency is improved. The refractory brick structure of the supporting assembly can provide strong supporting performance in a high-temperature environment, stability of a workpiece in the annealing process is ensured, workpiece deformation or damage caused by insufficient supporting in the heat treatment process is avoided, meanwhile, the refractory bricks have high temperature resistance and oxidation resistance, and the service life of the refractory bricks is prolonged. The service life of the supporting structure is prolonged, and the stability of the internal environment of the annealing furnace is ensured while the production efficiency is improved.
Owner:HENAN TIANLI THERMOTECHNICAL EQUIP CO LTD

Plate heat exchanger titanium strip coil surface flatness measuring device

The utility model provides a device for measuring the surface flatness of a titanium strip coil of a plate heat exchanger, and relates to the technical field of workpiece quality detection. Comprising a horizontal guiding rule and a measuring rule. The horizontal guiding rule comprises a guiding rule main body and a horizontal guide rail arranged on one side of the guiding rule main body; the measuring scale is used for measuring the unevenness of the surface of the titanium strip coil, and the at least one measuring scale is movably connected with the horizontal guide rail. According to the utility model, the at least one measuring ruler is arranged on the horizontal guiding ruler, so that the at least one measuring ruler is adopted to measure different positions of the surface of the titanium strip coil according to measurement requirements, data corresponding to the number of measuring points is obtained, and the unevenness value of the surface of the whole titanium strip coil is obtained.
Owner:HUNAN XIANGTOU GOLDSKY TITANIUM IND TECH CO LTD +2

Flatness detection device for building outer wall construction and construction technology

The invention discloses a flatness detection device for building outer wall construction and a construction technology, and belongs to the technical field of building decoration. The flatness detection device for building outer wall construction comprises two installation rails correspondingly installed on the outer wall face of a building, the surfaces of the two installation rails are jointly connected with a laser measuring instrument in a sliding mode, a movable plate capable of moving is arranged in the laser measuring instrument, and multiple sets of fixing frames are fixedly installed on the bottom face of the movable plate. A sliding frame is fixedly installed on the bottom face of any fixing frame. Compared with a traditional partially-fixed laser measurer, the flatness detection device for building outer wall construction has the advantages that the laser measurer can be prevented from being collided in time when encountering a large convex block, normal work of the laser measurer to detect the flatness of a wall surface is guaranteed, meanwhile, the accuracy of a detection value is guaranteed, and the working efficiency is improved. The detection quality of the laser measuring instrument on the flatness of the wall surface is improved, and the detection efficiency of the laser measuring instrument on the flatness of the wall surface is also improved.
Owner:SHANGHAI ZHUMING CONSTRUCTION ENGINEERING CO LTD

Jig for traceless adsorption of UTG glass

The invention discloses a jig for traceless adsorption of UTG glass, and belongs to the technical field of auxiliary jigs for UTG (ultra-thin flexible glass) processing. An ATPU buffer adsorption layer is installed at the lower section end of a jig bottom plate, a gauze assembly is installed at the lower end of the ATPU buffer adsorption layer, vacuum adsorption holes and vacuum channels are distributed in the jig bottom plate in a staggered mode, vent holes are distributed in the ATPU buffer adsorption layer, and the vacuum adsorption holes are communicated with the vacuum channels. The gauze layer uniformly disperses adsorption pressure through fine grids, marks on the surface of the glass due to local excessive deformation of the ATPU material are effectively avoided, actual measurement verifies that no visible adsorption marks or scratches exist on the surface of the UTG glass after adsorption, light transmittance and surface flatness are not affected, the strict requirements of high-end electronic products for the appearance of the glass are completely met, and the glass has a good application prospect. A three-layer stacked integrated structure is adopted, no complex nested or composite structure exists, the machining process of each layer of assembly is simple, the assembly process is convenient and fast, the design difficulty and manufacturing complexity of the jig are greatly reduced, and batch production is convenient to achieve.
Owner:CHENGDU INTERLO TECHNOLOGY CO LTD

Thin-wall metal material thinning method

The embodiment of the invention provides a thin-wall metal material thinning method which comprises the steps that 1, the laser spot interval and the feeding frequency are calculated according to laser scanning parameters, and the laser scanning parameters comprise the feeding interval; 2, the thin-wall metal material component is obtained, and a to-be-machined face of the thin-wall metal material component is subjected to laser scanning according to the light spot interval to form a plurality of first-round micropores which are arranged at intervals; according to the light spot spacing, the feeding spacing and the feeding times, multiple rounds of circulating laser scanning are conducted on the to-be-machined face in sequence so that gaps between the first round of micropores can be filled, and a thin-wall metal material component with a loose modified layer is obtained; and 3, the loose modified layer is removed, so that thinning of the thin-wall metal material component is achieved. According to the embodiment, the adverse effect of heat accumulation on the workpiece in the laser machining process can be reduced while the thin-wall metal material component is thinned, the deformation resistance of the ultra-thin workpiece is improved, and the surface flatness of the workpiece is guaranteed.
Owner:HUNAN UNIV OF TECH

Auxiliary tool for brick construction

The utility model discloses an auxiliary tool for brick construction, which relates to the field of flatness detection and comprises a straight long rod and a flatness measuring assembly capable of sliding along the length direction of the long rod and used for detecting the surface flatness of a tiled object to be detected. Wherein the flatness measuring assembly comprises a sliding piece arranged on one side of the long rod in a sliding mode, the sliding piece is provided with a sliding cavity and an inlet and outlet, the extending direction of the sliding cavity is perpendicular to the length direction of the long rod, and the inlet and outlet are formed in the extending direction of the sliding cavity and communicate with the sliding cavity. Through the extrusion of the bulge of the flatness detection surface of the object to be detected on the detection piece and the pushing of the spring on the detection piece, the tiny concave-convex change of the brick surface can be sensitively captured; and the brick surface height difference is converted into a visual datum line by utilizing the display line on the damping sliding block, so that a constructor can quickly position an uneven area.
Owner:CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP +1

Automatic detection device for horizontal and vertical two-dimensional wall surface

The utility model discloses an automatic detection device for a horizontal and vertical two-dimensional wall surface, which relates to the field of building construction and is characterized in that a laser ranging array is combined with the longitudinal hierarchical layout of double cameras and is matched with the orthogonal two-degree-of-freedom driving of a position and posture adjusting unit, so that the automatic detection of the horizontal and vertical two-dimensional wall surface is realized. The non-contact detection of the flatness and perpendicularity of the wall surface is realized, and the limitation of the traditional single-parameter detection is broken through; the data processing unit can autonomously avoid obstacles and complete full-facade scanning in a complex construction environment based on the acquired images; the multi-source detection data solves the island problem of traditional detection data, realizes accurate positioning and quantitative evaluation of wall defects, and provides full-dimensional automatic detection technical support for digital acceptance of buildings.
Owner:SHAANXI CONSTR ENG HLDG GRP FUTURE CITY INNOVATION TECH CO LTD +2

Vibration assisting device for concrete pouring

The utility model relates to a kind of vibration auxiliary devices for concrete pouring, it includes frame body, forming mould on frame body and vibration pump, frame body four corners are separately provided with up-down telescopic support, support is adjusted height by screw rod or hydraulic mechanism to accurately control the horizontal state of frame body and mould;Vibration pump is fixed to frame body bottom and is contacted with mould, and short frequency vibration is promoted to make concrete mortar uniform flow and discharge bubble.The device is applicable to prefabricated concrete component, kerbstone and other standardized production scene, and the internal compactness and surface flatness of concrete product can be effectively improved.The utility model can respectively fine tune each fulcrum height by the independent adjustable support of frame body four corners, realize millimeter level horizontal calibration of mould, avoid uneven distribution of concrete slurry due to inclination, significantly reduce honeycomb, pockmark and other defects, and improve product compactness and surface quality.
Owner:NANNING TONGDASHENG CONCRETE

Quality control method in processing process of glass fiber sleeve

The invention relates to a quality control method in a processing process of a glass fiber sleeve in the technical field of new materials, which comprises the following steps: aiming at a specific distribution area of material deformation, adjusting local pressure distribution parameters of processing equipment, obtaining surface flatness data of the adjusted material, and determining whether the deformation control capability reaches a preset standard or not; if the line definition degree does not meet the preset requirement, obtaining adjusted line image data by adjusting the cooling measure strength of a shaping link, and determining the improvement amplitude of the line definition degree; according to the improvement amplitude of the line clarity, continuously optimizing cooling parameters of a shaping link to obtain final line durability performance data, and judging whether the line stability meets production requirements or not; and for the fluctuation range of the grain quality between batches, obtaining optimized production data by adjusting comprehensive parameters of processing and shaping links, and determining a final improvement result of the surface quality consistency.
Owner:DONGGUAN HAOYIDA NEW MATERIAL TECH CO LTD

Surface flatness laser detection device for wood processing

The invention relates to the technical field of laser detection, in particular to a surface flatness laser detection device for wood processing, which comprises a base, a sliding rail is mounted on the upper surface of the base, the sliding rail is driven to operate by a driving motor mounted on the base, and a sliding frame is arranged on the sliding rail. A mounting base is arranged on the surface of the upper end of the sliding frame, a containing groove penetrating through the sliding frame is formed in one side of the mounting base, a clamping mechanism mounted on the sliding frame is arranged on the side, away from the mounting base, of the containing groove and used for clamping and fixing wood, and an air blowing mechanism is arranged on the side, close to the containing groove, of the mounting base and used for cleaning the surface of the wood. The device is reasonable in structure and complete in function, integrates automatic clamping, airflow cleaning, air guide self-adaptive adjustment, infrared linkage control and multi-point laser detection, achieves efficient pretreatment and accurate flatness measurement before wood detection, and remarkably improves the detection stability and automation level.
Owner:BEIJING BENYUAN BEIXU TRADING CO LTD

Crawler-type tunnel wall mold spraying device for open-type TBM (tunnel boring machine)

The invention relates to the technical field of tunnel supporting, and discloses a crawler-type tunnel wall mold spraying device for an open-type TBM. The technical problems that in the prior art, concrete supporting time is too long, rocks deform greatly under the action of gravity, a TBM is stuck, and the construction period is delayed and economic losses are caused are solved. The mechanical arm comprises a center rotating assembly and a mechanical arm body. The center rotating assembly drives the mechanical arm to rotate; concrete spraying equipment is installed at the tail end of the mechanical arm, the mechanical arm drives the concrete spraying equipment to move to the to-be-operated position of the tunnel wall, and crawler-type formworks are installed on the mechanical arm and the position of a guniting opening of the concrete spraying equipment. Concrete spraying equipment can extend to the proper position of the tunnel wall to spray concrete, and the multiple nozzles can greatly improve the concrete spraying speed; and the crawler-type template of the mold spraying device slowly rolls over the surface of the concrete to solidify the concrete, so that a smaller flatness error of the surface of the concrete is ensured.
Owner:STATE KEY LAB OF SHIELD & TUNNELING TECH +2

Door body assembly and cooking device

The application provides a door body assembly and a cooking equipment, relates to the technical field of kitchen appliances, and aims to solve the technical problem of air leakage caused by poor flatness of an inner glass after assembly. The door body assembly is provided with at least two first supporting members and two second supporting members. The two first supporting members are arranged on the stepped surfaces of two first supports respectively, and the two second supporting members are arranged at the ends of the two first supports respectively. The first supporting members are provided with first supporting surfaces, the second supporting members are provided with second supporting surfaces, the areas of the first supporting surfaces and the second supporting surfaces are smaller than the area of the stepped surfaces, the second door body is arranged on the first supporting surfaces and the second supporting surfaces and is attached to the first supporting surfaces and the second supporting surfaces respectively. In this way, the supporting area for supporting the second door body is reduced, the influence of the flatness of the supporting surfaces on the second door body is reduced, the surface flatness of the second door body is ensured, and the problem of air leakage caused by poor surface flatness of the second door body is avoided.
Owner:HANGZHOU ROBAM APPLIANCES CO LTD

Film covering device for tent cloth processing

The utility model relates to the technical field of tarpaulin processing, and discloses a film covering device for tent tarpaulin processing, which comprises a tarpaulin processing and film covering device body, and an auxiliary laminating mechanism is arranged in the middle of the tarpaulin processing and film covering device body; according to the device, the efficiency and the quality of the film covering process are effectively improved through the arranged auxiliary attaching mechanism, the auxiliary attaching mechanism can conduct even attaching and cleaning when a tent cloth body is treated through cooperative work of an adjusting rod, a compression spring, a support, a cleaning rolling brush and an attaching rolling column, and therefore the tent cloth body can be evenly attached and cleaned. The surface of the tent cloth body is free of impurities and bubbles, the adhesive force and the surface flatness of the film covering body are improved, in addition, the pressure of the device can be adjusted through the matched design of a compression spring and a support, the stability of the film covering process is ensured, and the problem of damage or non-uniformity caused by misoperation is avoided; by means of the design, tent cloth processing is more accurate, manual intervention is remarkably reduced, and production efficiency is improved.
Owner:SHIJIAZHUANG JINZE PLASTIC TARPAULIN MFG CO LTD

A tin-plated sheet detection device

The application provides a kind of tinned plate detection device, belongs to plate detection technical field, including detection frame and plate feeding and spreading component, the plate feeding and spreading component is two groups, symmetrically installed in the middle of the inner side wall of detection frame, the top of the inner side wall of the discharge end of detection frame is installed with a detection mechanism.The application is raised by roller pressing mechanism and primary detection mechanism, then the plate is worn between two plate feeding and spreading components, so as to clamp and transport the side edge of plate by plate feeding and spreading component, so that it can automatically cross detection device to complete feeding, reduce the dependence on manual, simplify the operation mode, improve the detection efficiency, and when plate feeding and spreading component is separated from plate at the end of conveying, transverse tension can be applied to both sides of plate by plate feeding and spreading component, to offset the edge wave, middle wave and buckling of plate caused by stress, to ensure the accuracy of surface flatness and thickness data collection.
Owner:SHANGHAI SHENGSHUN SUPPLY CHAIN MANAGEMENT CO LTD

Multilayer substrates and their electronic mounting

Conventional substrate manufacturing processes face several challenges, including technical bottlenecks in areas such as cost reduction, the production of large substrates, and especially ensuring surface flatness. [Solution] The present invention provides a laminated substrate structure comprising a first bonding layer, a second bonding layer, and an adhesive layer. The first bonding layer comprises a plurality of adjacent first bonding substrates and a plurality of first bonding gaps located between the first bonding substrates; the second bonding layer comprises a plurality of adjacent second bonding substrates and a plurality of second bonding gaps located between the second bonding substrates. The adhesive layer is positioned between the first bonding layer and the second bonding layer and defines a first adhesive surface and a second adhesive surface, connecting the first bonding layer and the second bonding layer. At least some of the first bonding gaps and second bonding gaps do not overlap along the first adhesive surface, the second adhesive surface, or the projection direction of both perpendicular to the adhesive layer.
Owner:PANELSEMI CORP

A three-stage air damper stamping die and method

This invention belongs to the field of tertiary air damper stamping technology, specifically a tertiary air damper stamping mold and method. During the demolding process, the surface flatness of the tertiary air damper is easily damaged, and the mold is prone to displacement during stamping, causing stamping deviation and affecting product quality. The proposed solution includes a tooling support frame, with a stamping platform fixedly connected to its upper side, and a stamping auxiliary module installed on the stamping platform. The tertiary air damper stamping mold and method disclosed in this invention ensures uniform force distribution on the surface of the tertiary air damper during demolding, preventing surface damage, and simultaneously ensures the mold remains static during stamping, avoiding stamping deviation and improving product quality.
Owner:SHANDONG XINKEXIN NEW MATERIALS TECHNOLOGY CO LTD

Inhibition module for the bow deformation of a biaxial stretching process and biaxial stretching apparatus

ActiveCN120533930BPull forceShrinkage rate
The application discloses a restraining module for preventing arch deformation in a bidirectional stretching process and a bidirectional stretching device, and the restraining module comprises a fixed frame, a power source is installed on the fixed frame, the power source drives the arc surface of an arc roller to rotate, the arc roller can be adjusted to form different arc heights, two sets of expander rollers are arranged on the two sides of the fixed frame, the two sets of expander rollers are located downstream of the arc roller, the two sets of expander rollers have initial angles which are perpendicular to the length of the film, and the two sets of expander rollers can be unfolded and form different unfolding angles relative to the initial angles. The arc height of the arc roller is dynamically adjusted to change the travel of the film along the conveying direction when the film is stretched in the transverse direction, and the unfolding angle of the two sets of expander rollers is dynamically adjusted to generate a forward oblique pulling force on the film, which can effectively offset the arch deformation of the film, reduce the orientation anisotropy of the film at different positions, make the mechanical properties and thermal shrinkage rate of the film uniform, and improve the surface flatness and thickness uniformity.
Owner:GUANGDONG GUANGXIN MATERIALS INTELLIGENT TECHNOLOGY CO LTD

Object holder, stage, optical element and method of controlling surface flatness, and their use in lithographic methods or devices

There is provided an object holder configured to support an object, the object holder comprising a support surface having a plurality of support elements, the support elements comprising a metal-Si multilayer, a metal-Ge multilayer, and / or a chromium nitride layer, the metal-Si multilayer, the metal-Ge multilayer, and / or the chromium nitride layer are thermally treated to provide a selectively alterable height of the respective support elements, via a thermal treatment of the metal-Si multilayer, the metal-Ge multilayer, and / or the chromium nitride layer. Also provided are a stage comprising such an object holder, an apparatus for controlling the flatness of a surface comprising such an object holder, an optical element for a lithographic apparatus, an apparatus for controlling the flatness of a surface, a lithographic apparatus or tool comprising such an object holder, and a method of manufacturing the same. A method of controlling the shape of a surface, a method of manufacturing an object holder, a method of correcting the flatness of an object holder or an optical element, and the use of such an apparatus or method in a lithographic apparatus or process.
Owner:ASML NETHERLANDS BV

A release film base film for OCA optical adhesive and a preparation method thereof

The application relates to a release film base film for OCA optical glue and a preparation method thereof. The base film adopts an A-B-A three-layer structure, PET is used as a base body in the A layer, filler A composed of mCNC, mSiO2 and PVP is added, PET is used as a base body in the B layer, PEN and PC and filler B composed of nano-aluminum oxide coated with stearic acid and EMA-GMA are added. Through careful material design and optimized preparation process, the application provides a high-performance OCA release film base film, effectively solves the problems of insufficient heat resistance, poor surface flatness and adhesion of the base film in the prior art, and finally the product has low heat shrinkage (which can be as low as 0.8%), high light transmittance (>90%), low haze, low surface roughness (less than 10nm) and excellent release agent adhesion (up to 5B), which is significantly better than the product of the comparative example.
Owner:扬州博恒新能源材料科技有限公司

Glass surface flatness detection structure for glass processing

The utility model discloses a glass surface flatness detection structure for glass processing, which belongs to the technical field of glass processing, and is characterized by comprising a detection table, a rack is arranged on the rear side of the detection table, a moving assembly is arranged at the top of the inner wall of the rack, and the moving assembly comprises a moving block. A cylinder is fixedly connected to the bottom of the moving block, a mounting block is fixedly connected to the telescopic end of the cylinder, a laser interferometer is fixedly connected to the bottom of the mounting block, a cleaning assembly is arranged on the front side of the mounting block, and dust and impurities on the surface of glass can be swept and sucked away through the cleaning assembly; meanwhile, when large-area glass is detected, the cleaning assembly and the laser interferometer can move synchronously, detection while cleaning is achieved, it is guaranteed that a detection area is in a clean state all the time, extra waiting for cleaning is not needed, and therefore the detection efficiency is improved.
Owner:NANTONG ZIJIN SOLAR ENERGY DEVELOPMENT CO LTD

Processing method of diamond sheet

The invention provides a diamond sheet processing method which comprises the following steps: marking the edge of a non-processing surface of a polycrystalline diamond sheet to obtain an edge marking point, detecting the surface flatness of a to-be-processed surface of the polycrystalline diamond sheet based on a flatness detection instrument to obtain flatness detection data, and determining the flatness of the to-be-processed surface of the polycrystalline diamond sheet according to the flatness detection data. The planeness detection data is subjected to multi-category noise reduction processing and feature extraction based on the analytical model to obtain analyzed planeness detection data, the polycrystalline diamond wafer is positioned, placed, adsorbed and fixed based on the matched clamp, the high-precision probe driving module is controlled to respond to the analyzed planeness detection data, and the planeness of the polycrystalline diamond wafer is detected. In the operation process, each probe unit is independently regulated and controlled, the probe units are ejected out according to flatness detection data and form a complementary stable supporting structure with the to-be-machined face, and the to-be-machined face of the polycrystalline diamond wafer is controlled to be in attached contact with a polishing tool. And the to-be-machined surface of the polycrystalline diamond sheet is trimmed based on a polishing tool.
Owner:ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD +1

Display device and method of manufacturing the same

The application provides a display device and a manufacturing method thereof. The display device comprises a support layer, an adhesive layer, a protective film, a display panel, a polarizing layer, an optical adhesive layer and a cover plate which are sequentially stacked. The support layer is a composite material layer formed by hot pressing of a metal layer and a carbon fiber layer. By setting the support layer as the composite material layer of the metal layer and the carbon fiber layer, the surface flatness of the flexible module can be improved. At the same time, the front impact resistance of the module can be improved due to the addition of the rigid material such as the metal layer. The thickness of one adhesive layer can be removed to achieve the purpose of module thinning. Moreover, the composite adhesion between the metal layer and the carbon fiber layer is better than the effect of assembling by single body bonding of the metal layer and the carbon fiber plate, so that the risk of module peeling can be reduced. The display device and the manufacturing method thereof provided by the application have the advantages of simple structure, convenient manufacturing, strong stability, low cost, effective reduction of product weight and improved display effect.
Owner:BOE TECHNOLOGY GROUP CO LTD