177 results about "Large aspect ratio" patented technology

The invention discloses a large flexible wing static aeroelasticity analysis method based on a physical information neural network, and belongs to the field of aircraft design. The method comprises the following steps: for the wing with the super-high aspect ratio, firstly, dispersing the wing into n spanwise sections based on a strip theory, and initializing a reference angle-of-attack parameter of each spanwise section; then, a physical information neural network (PINN) is built, unsteady flow field solving is carried out on each section, for the current ith iteration, the physical information neural network is used for sequentially traversing and extracting pressure distribution of the airfoil surface of each section, respective aerodynamic load distribution is calculated, and the generalized force of the airfoil is obtained; and solving a structural dynamics equation based on the generalized force and structural information of the wing, calculating the deformation of the large-deformation wing by using a modal rotation method, and finally, carrying out solving iterative circulation on aerodynamic force and structural deformation until the attack angle is converged, so as to obtain the actual lift force L of the wing. According to the method, the calculation precision and efficiency are remarkably improved, and different flight conditions and wing design can be adapted.

The invention relates to a micro-miniature large-length-diameter-ratio continuum mechanical arm based on a rigid-flexible composite joint and a modeling method thereof.The micro-miniature large-length-diameter-ratio continuum mechanical arm comprises an operation arm, the operation arm comprises a plurality of continuum sections which are sequentially connected in series, each continuum section comprises a plurality of connecting rod sections and a plurality of universal joint sections, and the micro-miniature large-length-diameter-ratio continuum mechanical arm further comprises a nickel-titanium alloy pipe; the nickel-titanium alloy pipe penetrates through the middle parts of the plurality of continuous body sections which are sequentially connected in series; and the driving box is used for providing power for the operation arm and achieving accurate motion control, and the operation arm is connected with the bottom of the operation arm. The novel rigid-flexible composite joint is introduced, composition of the rigid joint and the continuum flexible mechanical arm is achieved, rigid support is provided for the continuum flexible mechanical arm under the condition that movement is not affected, the rigidity, compression resistance and torsion resistance of the mechanical arm are effectively improved, and the load capacity and movement stability of the mechanical arm are enhanced.

The invention provides a pre-patterned material laser-induced transfer method based on template printing, which combines template printing and laser-induced transfer, and comprises the following steps: step 1, forming patterned non-Newtonian fluid slurry on a transparent carrier by template printing; 2, a polyimide adhesive tape is attached to the transparent carrier, and an adjustable gap is formed between the polyimide adhesive tape and the receptor plate; 3, adjusting a Z-axis displacement platform to control the defocusing amount, and enabling the size of a light spot to be adaptive to the feature size of the slurry; 4, a galvanometer is adjusted to be aligned with the patterned non-Newtonian fluid slurry and the target position, the movement track of the galvanometer is designed, and the repetition frequency is adjusted; and step 5, performing light emitting processing by using a laser, performing surface gasification and phase change separation on the slurry, and depositing the slurry on a receptor plate through gaps after kinetic energy is obtained. According to the invention, high-precision and large-aspect-ratio deposition can be realized.

The invention relates to the technical field of composite materials, in particular to a large-length-diameter-ratio composite pipe fitting forming method which comprises the steps of S1, core mold splicing, S2, air pipe sleeving, S3, paving and winding, S4, core mold dissolving, S5, sealing and depoling, S6, flange mounting, S7, mold closing and bag making and S8, heating and curing. Wrapping the hot melt adhesive at the bonding position by using an aluminum foil adhesive tape, then removing the aluminum foil adhesive tape, sleeving the bonded core mold by using a release air pipe longer than the core mold, pouring acetone into the release air pipe, dissolving the EPS foam rod, completely sealing the inlet end of the release air pipe, and finally sealing the release air pipe. And the sealed release air pipe is pulled out of the pipe fitting prefabricated body, the pipe fitting prefabricated body is obtained, and then the composite pipe fitting is manufactured in cooperation with a female die and a bag. The technical problem that the large-length-diameter-ratio composite pipe fitting with the perfect inner surface effect and the perfect outer surface effect cannot be manufactured through an existing technology on the premise that the mechanical property of a product is guaranteed is solved.

The invention provides a grinding rod structure for grinding an internal thread with a large length-diameter ratio, and relates to the technical field of machining equipment. The grinding rod structure comprises a grinding rod body, a base, a turning piece, a grinding assembly, a flexible shaft and a nut. A grinding assembly is arranged on a throttling section of a turning part in a clearance sleeving mode, a fluid cavity is formed between the grinding assembly and the turning part, an annular first dynamic pressure oil groove is formed in the periphery of the throttling section, and an annular second dynamic pressure oil groove is formed in the end face of the grinding assembly. When the grinding assembly does not rotate, due to the fact that fluid has certain pressure at the moment, the grinding assembly can float to be separated from the direction changing piece. During machining, the grinding assembly rotates at a high speed, based on the first dynamic pressure oil groove and the second dynamic pressure oil groove, fluid in the fluid cavity has an obvious dynamic pressure effect, fluid pressure far larger than external pressure can be generated, the rigidity of the bearing is remarkably improved, abrasion is avoided, and the service life is long; and meanwhile, the structural form almost does not generate overturning moment, and the machining precision can be remarkably improved.

The present invention relates to a compression test device for a composite laminate with a large length-thickness ratio, belonging to the technical field of composite material testing. It can achieve that the two-side boundaries are kept in a simply supported constraint throughout the compression test process, and the simply supported condition is not easily changed at the moment of failure. The flatness of the loading plane on the length and width surfaces of the plate specimen is also adjusted through a grid device. The device includes: two groups of side supports are respectively arranged at both ends of the bottom installation component, and the specimen is vertically arranged between the two groups of side supports; two groups of bottom constraint plates, four simply supported constraint plates and two groups of out-of-plane adjustable grids are respectively arranged on both sides of the plate-shaped specimen, and the two groups of bottom constraint plates are respectively arranged at the bottom of the plate-shaped specimen, and the four simply supported constraint plates are respectively arranged in pairs at the left and right ends of the plate-shaped specimen; the bottom constraint plates are connected to the bottom installation component, and the simply supported constraint plates are connected to the corresponding side supports; two groups of end constraint plates are respectively arranged on both sides of the top of the plate-shaped specimen and are fixedly connected to the end loading plates arranged thereon, and the end loading plates are connected to the test loading equipment.

The internal thread turning and grinding combined machining equipment comprises a machine tool body, a workpiece main shaft, an internal thread grinding wheel main shaft, an internal thread grinding wheel main shaft swing angle device and a turning tool device, an X-direction sliding plate and a Z-direction sliding plate are arranged on the machine tool body, and the turning tool device is arranged on the X-direction sliding plate. The turning tool device comprises a tool apron and a deep hole turning tool with one end fixedly connected with the tool apron, the internal thread grinding wheel spindle swing angle device and the turning tool device can be arranged on the X-direction sliding plate, and when an internal thread deep hole part with the large length-diameter ratio is dealt with, the deep hole turning tool and an internal thread grinding wheel spindle are used for achieving the technological process of firstly turning and then grinding; the clamping frequency is reduced, the machining precision is improved, the machining time is shortened, the machining cost is reduced, and the machining efficiency is improved.

The invention relates to equipment and a method for machining an internal thread with a large length-diameter ratio by adopting a whirlwind thread milling cutter. The technical problem that machining efficiency and precision are affected due to the fact that the length-diameter ratio of an existing workpiece is large is solved. Comprising a stand column vertically arranged on a lathe bed, a horizontal sliding seat is vertically and movably arranged on one side of the stand column through a sliding seat lifting assembly, a spindle device is horizontally and movably arranged on one side of the horizontal sliding seat through a spindle translation mechanism, and the spindle device is provided with a clamping assembly used for clamping cylindrical workpieces which are vertically distributed; a whirlwind thread milling cutter is arranged above the main shaft device, the whirlwind thread milling cutter is arranged on an electric main shaft assembly, and a main shaft tip assembly is arranged below the main shaft device through a tip lifting assembly. The device has the advantages that the radial distance between a workpiece and the milling cutter is adjusted through movement linkage of the sliding seat lifting assembly, the main shaft translation mechanism and the tip lifting assembly, it is ensured that the milling cutter can accurately cut into the complex position on the inner side of the workpiece, meanwhile, large-length-diameter-ratio internal threads can be machined, and limitation of traditional machining is avoided.

The invention provides a patrol flight unmanned aerial vehicle with W-shaped folding wings. The patrol flight unmanned aerial vehicle comprises a fuselage, inner-section wings, inner-section wing limiting structures, inner-side folding and unfolding mechanisms, outer-section wings, ailerons, outer-side folding and unfolding mechanisms, empennages, empennage folding and unfolding mechanisms and empennage protection structures. The fuselage is designed by adopting a flat lifting body configuration, the inner and outer sections of wings are designed by adopting low-speed friendly plane shapes such as rectangles and trapezoids, and the empennage is designed by adopting a V-shaped empennage / inverted V-shaped empennage. The inner section wing and the outer section wing of the unmanned aerial vehicle are integrally in a W shape in the unfolding process, and a folding wing layout with the larger aspect ratio and the higher aerodynamic efficiency can be derived based on the W-shaped layout. According to the layout, the extension length of the wings is slightly restrained by the length of the fuselage, the contradiction between the aerodynamic characteristic design of the wings and the storage space of the launch canister is well balanced and solved under the condition that the length of the fuselage is fixed, and the layout wings are large in aspect ratio, high in aerodynamic efficiency and simple in structural design.

The invention discloses a multi-layer combined unmanned aerial vehicle and a control method, and relates to the field of high-altitude long-endurance unmanned aerial vehicles, the multi-layer combined unmanned aerial vehicle comprises a plurality of sub-aircrafts, each sub-aircraft comprises a fuselage, an empennage, wings, wingtips and protrusions, the wingtips are arranged at the ends, away from the fuselage, of the left and right wings, and the wingtips can be in butt joint with the wingtips of the other aircraft; protrusions are arranged on the upper surface and the lower surface of each wing, the end faces of the protrusions can be in butt joint with the end faces of the protrusions of another airplane, and the protrusions can be used for containing an aircraft undercarriage at the same time. Through aggregation and recombination of a plurality of small unmanned aerial vehicles, a multi-layer combined unmanned aerial vehicle with a high aspect ratio is formed, and the combined unmanned aerial vehicle can effectively overcome the defect that the rigidity of wings of a traditional unmanned aerial vehicle with a high aspect ratio is insufficient and can carry an oversized radar conformal antenna with long wave bands such as meter waves and the like. And long-time air-hang detection of high-value targets such as stealth aircrafts and the like is realized.

This invention relates to a tooling and method for fabricating driven bevel gear assemblies using high aspect ratio bar stock. This method involves separately forming the driven bevel gear and its shaft, then welding them together to achieve integrated forming and welding. This results in the overall forming of the driven bevel gear assembly, avoiding welding deformation issues caused by the structural features of the assembly, improving the assembly's yield rate, and providing a solution for assembly structural design. This method can utilize smaller diameter raw material bars to fabricate driven bevel gear assemblies, not only achieving overall forming of the driven bevel gear assembly but also improving material utilization, increasing efficiency, and reducing costs.

The present invention provides a thin-film silver powder, a preparation method, and applications thereof. The preparation method comprises: mixing organic silver, a reducing agent, an alcohol, an acid, and water, heating the mixture, and then maintaining the temperature to obtain the thin-film silver powder. This method is simple, easy to operate, environmentally friendly, and suitable for mass production. The silver powder produced by this method has high purity, a high aspect ratio, a large aspect ratio, is resistant to fracture, and is easily stretchable and foldable. It is suitable for various fields of flexible printed electronics, has a wide range of applications, and exhibits excellent conductivity.

The invention belongs to the technical field of micro-nano processing, and particularly relates to a Pt-HSQ-based high-resolution X-ray Fresnel zone plate and a preparation method thereof. According to the X-ray Fresnel zone plate, a Pt-HSQ metal-inorganic material system is adopted, a diffraction structure with a large aspect ratio and Pt material quasi-periodic dense stripes specially needed by an X-ray zone plate lens is formed through electron beam lithography and an ALD process, and diffraction focusing from a soft X-ray wave band to a hard X-ray wave band and imaging with an amplification function are achieved. The wave zone plate has excellent mechanical stability, and the irradiation resistance and morphology retentivity of the wave zone plate under high-energy irradiation are remarkably improved. And high-resolution X-ray focusing elements with different energy wavebands and different focal lengths can be prepared according to geometric design and material selection of the wave zone plate. The lens is suitable for microscopic imaging, coherent diffraction imaging, X-ray spectrum, nanometer detection and other scenes of a synchrotron radiation or off-line laboratory X-ray light source, and has wide popularization value and application prospect.

The application provides a large height-diameter ratio titanium-aluminum alloy blank manufacturing device and method. The method comprises the following steps: S10, designing a blank: designing a forging according to a target titanium-aluminum alloy blade; the forging comprises a blade root part, a blade body part and a blade crown part; presetting the shape and size of the blank according to the forging; S20, obtaining a forming die and a raw material: preparing the forming die according to the preset shape and size of the blank in step S10, and selecting a bar; S30, adopting the forming die to perform upsetting forming on the bar to obtain the blank; and performing hot working on the blank to obtain a target titanium-aluminum alloy blade forging. The large height-diameter ratio titanium-aluminum alloy blank manufacturing method and device can solve the problems of blank instability of a large height-diameter ratio metal bar and high mold cost caused by titanium-aluminum alloy isothermal forming, realize non-isothermal forming of a large height-diameter ratio titanium-aluminum alloy special-shaped part, improve material utilization, reduce waste of titanium-aluminum alloy material, and effectively reduce the machining cost of the blade.

The present application provides a battery pole piece defect detection method, computing device and storage medium, which relate to the field of target detection technology. The method includes: training a target detection network based on a battery pole piece surface defect dataset; the target detection network includes a backbone network based on a deformable downsampling convolution module, a feature fusion network based on a context enhancement module and a downsampling convolution block, and a detection head based on an attention mechanism; through the trained target detection network, defects in the battery pole piece surface defect image to be detected are detected. In the target detection network provided by the present application, the deformable downsampling convolution module can specifically improve the detection capability of target defects with large aspect ratios, the context enhancement module and the deformable convolution module can specifically improve the detection capability of small target defects, and the attention mechanism can improve the detection accuracy. Therefore, the detection accuracy and efficiency of battery pole piece surface defects are comprehensively improved.

The invention relates to an evaluation method and device for a gradient-optimized fluid engineering model and a computer program product. Comprising the following steps: performing mesh generation on a fluid engineering model to obtain a mesh model; calculating the weight factor of each adjacent grid according to the length-width ratio of each adjacent grid of the target grid, and calculating the weight between the target grid and each adjacent grid according to the weight factor and the geometric distance between the center of the target grid and the center of each adjacent grid; calculating a first gradient of the target grid according to respective first field quantities of the target grid and each adjacent grid and a weight between the target grid and each adjacent grid; performing field quantity iterative calculation according to the first gradient sum of each target grid to obtain a target field quantity; and calculating an evaluation index according to the target field quantity. According to the embodiment of the invention, the variable weight function is adopted, and the weight factor is set, so that the problems of chessboard and numerical precision when the least square method expansion template format is applied to the large-length-width-ratio grid model are solved.

The present invention provides a wax pattern preparation method for special-shaped castings, comprising the following steps: melting, stirring, and standing the wax material; performing segmented wax injection on a mold, wherein three wax injection nozzles are evenly arranged above the wax sample and inject downward, and another wax injection nozzle is located in the middle of the wax sample and injects radially; the segmented wax sample is taken out of the mold together with a urea core, and is shaped and dissolved in water at 20-25°C; the contact surfaces of adjacent segmented wax samples are bonded with AB glue; a sand box is provided outside the wax pattern, gypsum slurry is poured into the sand box, and the bottom of the wax pattern is sealed. By adopting the present invention, a high-precision assembled wax pattern suitable for special-shaped castings with a large aspect ratio can be prepared, the wax pattern segments prepared are easy to position and weld, the assembly process is simple, the assembly difficulty is low, and a complex and closed inner cavity structure of the wax pattern can be prepared at one time; and the problem of inconsistent shrinkage and deformation of the wax pattern during assembly and storage can be well prevented.

The utility model relates to the technical field of runner groove forming, in particular to a large-depth-to-width-ratio runner groove forming device which comprises a base, a guide column is arranged on the outer wall of the top end of the base, a cover plate is fixedly connected to the outer wall of the top end of the guide column, and a support is fixedly connected to the outer wall of the top end of the cover plate. The forming mechanism is arranged on the outer wall of the bracket; the forming mechanism comprises an electric push rod installed on the outer wall of the top end of the support, one end of a piston rod of the electric push rod is fixedly connected with a lifting frame, an installation groove is formed in the outer wall of the bottom end of the lifting frame, a limiting plate is installed on the inner wall of the installation groove, and a first sliding groove is formed in the outer wall of one side of the cover plate. According to the runner groove forming device, part of internal stress of metal can be released in the forming process through heating, so that the possibility of subsequent deformation is reduced, the template can be quickly replaced according to the forming requirement of the runner groove, the forming of the metal sheet runner groove is more stable, and the forming efficiency of the runner groove forming device is improved.

The invention relates to a feature fusion method based on a special-shaped convolution kernel, and aims to solve the problem that traditional feature fusion is poor in adaptability to object direction and length-width ratio change. Comprising the following steps: extracting input image features; multiple special-shaped convolution kernels are adopted to extract multi-direction features in parallel; splicing the feature maps along the height dimension; and fusing multi-scale information through expansion convolution, and adding the fused multi-scale information with original feature residual errors. According to the feature fusion method, the detection precision of targets with changeable directions and large length-width ratio difference is remarkably improved, mAPs on SIXray and CLCXray data sets are improved by 2.22% and 1.84% respectively, and the feature fusion method is suitable for target detection of complex scenes such as security check and remote sensing.

The present application belongs to the field of carbon fiber composite materials, and provides a method for improving the thickness direction thermal conductivity of asphalt-based carbon fiber composite materials. The purpose of the present application is to solve the problem of low thickness direction thermal conductivity of asphalt-based carbon fiber composite materials, and to improve their performance and reliability in the field of aerospace. The technical solution of the present application is: using chemical vapor deposition (CVD) method to prepare carbon nanotubes (CNT) with large aspect ratio on the surface of asphalt-based carbon fiber, thereby forming a new type of composite material with high thermal conductivity, low density and high temperature resistance. The innovation of the present application is: growing large aspect ratio CNT on the surface of asphalt-based carbon fiber, and constructing a heat conduction channel in the thickness direction of asphalt-based carbon fiber composite material, which significantly improves its thermal conductivity. The advantage of the present application is: simple and controllable method, excellent, stable and durable product performance, wide application and broad prospect.

The invention provides a spatial index construction method, retrieval method and system for a graph with a large length-width ratio, and the method comprises the steps: screening one or more graphs with the large length-width ratio when reading a target layout file, and constructing a corresponding spatial index database; matching operation is carried out on the screened graphs with the large length-width ratios, and target band-shaped index structures, target index bands and target binary tree nodes of the graphs with the large length-width ratios in the spatial index database are matched step by step, so that storage addresses of the graphs with the large length-width ratios are stored in the corresponding target binary tree nodes; updating the spatial index database; therefore, the spatial index database can be quickly constructed, and the target graph with the large length-width ratio in the target layout file can be quickly retrieved and positioned during layout design. The technical problems that an existing spatial index technology is poor in polygonal graph applicability to a target layout file, the index construction time is long, and the retrieval efficiency is limited are solved.

To provide a molded article having superior impact resistance and chemical resistance.SOLUTION: A molded article composed of a thermoplastic resin composition, wherein the thermoplastic resin composition has a sea-island structure, and in an SEM image obtained by observing a cross section of the molded article by SEM, when island portions of a specific area in the sea-island structure are defined as island portions I, a most frequent value of aspect ratio of the island portions I is less than 1.90, and the ratio of the number of the island portions I having an aspect ratio more than 1.95 and 2.25 or less to the total number of the island portions I is 17.0% or less.SELECTED DRAWING: Figure 1

The invention discloses a low-heat-input large-depth-to-width-ratio welding seam forming regulation and control method, and belongs to the technical field of laser machining. The invention aims to solve the problems of cracks, grain coarsening and welding deformation during welding of a large-thickness heat input sensitive material and the problem that a low-heat input pulse laser welding technology is not applied to thick plate welding. The method comprises the steps of 1, tacking a workpiece; 2, placing on a welding platform of a vacuum laser welding device, adjusting the welding position and fixing; 3, welding; and fourthly, welding parts are taken out of the cabin. The method is used for forming regulation and control of the welding seam with the low heat input and the large depth-to-width ratio.

The invention relates to a grain boundary diffusion anti-deformation method for a special-shaped sintered neodymium-iron-boron magnet with a large length-diameter ratio, which comprises the following steps of: 1, preparing a concave die and a convex die which are matched with the neodymium-iron-boron magnet, and matching the shape structure of a cavity with the magnet after the concave die and the convex die are assembled; 2, during grain boundary diffusion heating of the neodymium-iron-boron magnet, the neodymium-iron-boron magnet is placed in a cavity formed after the female die and the male die are assembled in the step 1; thirdly, preset pressure is applied to the top after the female die and the male die are assembled; and 4, demolding after the neodymium-iron-boron magnet is cooled. The method has the beneficial effects that deformation of the neodymium-iron-boron magnet during grain boundary diffusion heating is prevented, grinding after diffusion is reduced, and performance reduction caused by excessive grinding is avoided.

The invention provides a long-span framework winding device and a winding method, and relates to the technical field of nuclear power equipment, a wire coil is fixed on a vertical plate before winding, then a servo driving module drives a rotating drum to rotate through a synchronous wheel module, a cable begins to be wound on a framework, and a synchronous linear module also moves in a matched mode. In the winding process, the tension sensor detects the tension of the cable, and the hysteresis brake motor finely adjusts the speed of the wire coil according to the feedback of the tension sensor, so that the tension of the cable during winding is adjusted. The wire coil and the rotating drum rotate synchronously, the problem that in the winding process, a cable and the rotating drum are wound is solved, the winding module surrounds the framework, the problem that the circumferential run-out error is too large due to the fact that a traditional framework rotates is avoided, meanwhile, the arrangement of a balancing weight is combined, the circumferential run-out error in the rotating process of the winding module is further reduced, and the winding efficiency is improved. And finally, precise winding of the cable of the skeleton with the large length-diameter ratio is realized.

This invention provides an ultrasonic electromagnetic rheological composite grinding and polishing method for ultra-large aspect ratio pipes. The method is characterized by: using a composite polishing method combining ultrasound, electric field, and magnetic field to simultaneously perform ultra-precision machining on the inner and outer surfaces of the ultra-large aspect ratio slender pipe (21); forming a composite field of ultrasound and electromagnetic field on the outer surface of the slender pipe, forcing the electromagnetic composite rheological fluid in the composite field to transform from a liquid into a high-strength semi-solid chain structure, forming a flexible polishing brush head to complete the outer surface machining; forming a composite field of ultrasound and magnetic field inside the slender pipe, forcing the grinding fluid (15) and its contained abrasive particles in the composite field to rotate along the inner pipe wall under the action of the composite field, completing the inner pipe machining; the same electromagnetic composite rheological fluid is used for both the inner and outer surface machining of the slender pipe. This method achieves simultaneous machining of the inner and outer surfaces in one process, greatly reducing machining time and improving machining efficiency while meeting the pipe machining requirements.

The present application discloses a chromium coating modified on the basis of V2O5 and a preparation method therefor. Components of a solid-phase diffusion agent used are: Cr: 30-50%; V2O5: 2-7%; SiC: 30-50%; NH4Cl: 1-5%; La2O3: 0-5%; and Y2O3: 2-5%. The chromium coating prepared in the present application has a uniform structure, a moderate thickness, sufficient diffusion of Cr atoms, and good metallurgical bonding between a diffusion layer and a substrate, is suitable for austenitic steel and high-temperature alloy components which are used in large boilers, oil and gas field transportation pipelines and other workpieces having a large aspect ratio and various complex shapes, and achieves excellent industrial mass production benefits.

The invention relates to the technical field of automatic assembly of initiating explosive device medicament equipment, and discloses a device and method for automatically rolling and assembling a copper removal agent in a combustible cartridge case with the large length-diameter ratio, the device comprises a supporting frame, the supporting frame is placed on the ground and used for placing other mechanisms, and a copper removal agent feeding mechanism is arranged on the supporting frame; the winding and shearing module workbench and the assembly executing mechanism are arranged on the upper layer of the supporting frame; the taking and placing clamping mechanism and the feeding and discharging mechanism are arranged on the lower layer of the supporting frame; by integrating the five core advantages of rapid feeding and discharging, high-precision automatic winding and shearing, automatic assembling, coaxial conveying and automatic disassembling and assembling and aiming at the characteristics that the length-diameter ratio of the large-length-diameter-ratio combustible cartridge is too large, the pipe wall is prone to deformation, and the structure is prone to damage, coaxial positioning operation and flexible process installation are adopted, full-process automation of winding and assembling is achieved, and the production efficiency is improved. The problems of poor manual operation consistency, uncontrollable quality, low efficiency, insufficient safety protection and the like in the prior art are solved.

A method for forming a back-illuminated image sensor includes providing a first semiconductor substrate having opposite first and second faces, thinning the second face, forming a plurality of deep trenches in the first semiconductor substrate, filling a flowable material into the deep trenches, and irradiating the flowable material with a UV light curing process to form first isolation structures to fill the deep trenches. By forming a flowable material in the deep trenches, and irradiating the flowable material with a UV light curing process to form first isolation structures to fill the deep trenches. Since the temperature of the UV light curing process is low, damage to device structures formed on the first semiconductor substrate can be reduced. In addition, the flowable material has good filling properties, and can be used to fill deep trenches with a large aspect ratio, so that the density of the finally formed first isolation structures is high, and the isolation effect can be effectively improved.

The invention provides a large aspect ratio conductive circuit ink-jet printing method, which specifically comprises the following steps: in an ink-jet printing process, controlling an emission angle of an infrared laser, keeping an intersection point of laser emitted by the infrared laser and an ink droplet falling track of a printing head above a printing substrate, and presintering and curing ink droplets before the ink droplets fall on the surface of the printing substrate; the invention further provides an ink-jet printing device for the conductive circuit with the large height-width ratio and an application method of the ink-jet printing device. The nano-silver ink for ink-jet printing is rapidly sintered through laser in the flying process, the high-performance conductive trace can be directly manufactured on the substrate, and the manufacturing efficiency and the quality of the final electronic trace are remarkably improved through the collaborative process of presintering in the ink droplet flying process and synchronously preheating the substrate; the large-aspect-ratio conductive circuit ink-jet printing device for achieving the method is simple in structure, flexible and convenient to operate and high in practicability, and the focusing accuracy of laser and ink droplets is improved.