21results about How to "Good for deformation control" patented technology

The invention provides a machining method for a three-petal type stator machining assembly with two-stage blades of an aero-engine. The machining method can solve the problems that the two-stage blades in a three-petal type stator are difficult to machine, parts are large in deformation after spraying and combined machining, and the shape and position sizes such as the blade profile tolerance, the flow channel profile tolerance and the concentricity of assembly parts at the front end and the rear end of the stator are out of tolerance. The method comprises the following steps of blank inspection, rough turning of an inner shape and an outer shape, rough milling of an outer shape, milling, finish milling, clamp trimming, finish trimming, finish turning, finish milling, finish turning, inspection, spraying, turning of a large-end coating, turning of a small-end coating, grinding of a blade tip, clamp trimming of a mark, fluorescent penetrant inspection and final inspection. The method is characterized in that: The working procedures between the outer shape rough milling step and the inspection step specifically comprise segmentation, stress relief heat treatment, joint surface and hole milling, grinding, combination, benchmark trimming, two end and inner shape fine turning, outer shape finish milling, splitting, blade shape finish milling, clamp trimming, combination, large end benchmark fine trimming, small end finish turning, small end lace and hole finish milling and large end finish turning. .

The invention belongs to the technical field of nuclear power fuel rod machining, and particularly relates to a cold rolling forming process method for a zirconium alloy end plug for a nuclear power fuel rod, after a straight hole is machined in the end plug, a rolling wheel is adopted for cold rolling forming, the rolling path of the rolling wheel is from the side face of the end plug to an end opening of the end plug, and the rolling wheel conducts rolling for 6-8 times along the rolling path; in the cold rolling forming process, the end plug rotates, and the rolling wheel rotates along with the end plug. According to the invention, the rolling wheel is adopted to perform multiple rolling according to the rolling path, so that the port is gradually formed, the deformation is uniform, the deformation amount is controllable, and the strength of the port can be improved by multiple rolling deformation, thereby improving the drawing performance.

The invention discloses a novel anti-slide pile and an intelligent regional landslide monitoring and management method and system, relates to the technical field of landslide monitoring, combines the functions of real-time monitoring, early warning and prediction, structural stability evaluation, maintenance scheme analysis and the like, is beneficial to improving the scientificity, accuracy and efficiency of landslide control, reduces the geological disaster risk, and improves the safety of landslide management. Meanwhile, by combining elements such as the inclined piles in front of the piles, the anchor cables and the water guide pipes, the structure not only improves the stability of the slide-resistant piles, but also can effectively control deformation and drainage of landslides, so that geological disaster risks are reduced, casualties and economic losses are reduced, and the structure is composed of the slide-resistant piles, the anchor cables, the inclined piles in front of the piles, the water guide pipes and the drainage pipes; the anti-slide pile is a hollow pile, the anchor cable and the inclined pile in front of the pile are constructed in the hollow pile, the hollow pile part is filled with concrete after the anchor cable and the inclined pile are constructed, and the concept that the anchor cable cannot be constructed in a traditional embedded anti-slide pile is changed.

The invention relates to a large-span deep foundation pit steel-concrete combined supporting structure and a construction method thereof. The large-span deep foundation pit steel-concrete combined supporting structure comprises profile steel enclosing purlins arranged on the edge of a foundation pit; the concrete side truss structures are arranged on the two opposite sides of the foundation pit; the profile steel supports are connected between the oppositely arranged concrete fringe truss structures in a supporting manner; the multiple profile steel angle braces are obliquely arranged at the corners of the foundation pit in a supporting mode, and the ends of the profile steel angle braces are connected with the corresponding profile steel enclosing purlins and the concrete fringe truss structures; and the axial force servo system is connected to the profile steel support and the profile steel angle brace and is used for applying axial force to the profile steel support and the profile steel angle brace. The concrete fringe truss structure has good deformation control capacity and serves as a force transmission buffer strip between the prestressed profile steel support and the enclosure structure coping beam, and the problems that a foundation pit cracks, bends, inclines and the like due to the fact that concentrated axial force is too large are solved.

The present invention discloses a prestressed tensioned circular ring support system and a deformation control method thereof, the system comprises a circular ring support constructed in a foundation pit, and tensioned strings arranged along the diameter direction of the circular ring support, the tensioned strings are multiple, the angles between two adjacent tensioned strings are the same, and at least one intersection point between the tensioned strings or their extension lines and the circular ring support is provided with a prestressing device. The deformation control method, when the foundation pit deforms in a certain direction or a relative direction causing the circular ring support to deform in the same direction, adjusts the prestress applied to the circular ring support by the prestressing device corresponding to the tensioned strings perpendicular to the deformation direction, so that the deformation of the circular ring support is controlled. The present invention can control the deformation of the prestressed tensioned circular ring support system caused by the deformation of the foundation pit, so as to protect the facilities around the foundation pit.

The present invention provides a protective device and method for argon arc welding of gas turbine inserts, including a welding protective tool, wherein the welding protective tool includes a base, a cover plate, an adjusting screw and a bottom pad, wherein the upper end of the base is an arc surface structure, the lower end of the base is connected to the cover plate, and an argon gas channel is provided on the base; one end of the adjusting screw is connected to the lower end of the cover plate; the free end of the adjusting screw is connected to the bottom pad; the present invention utilizes a protective device to ensure an accurate welding position, prevent internal welding defects and welding cracks, and improve labor production efficiency and processing quality.

This invention discloses a double-row pile retaining structure for foundation pits and its construction method, aiming to provide a double-row pile retaining structure for foundation pits with good deformation control, strong resistance to earth pressure, and high stability. A double-row pile retaining structure for foundation pits includes: a front row of piles, which are set in the soil; a front row of pile capping beam, with the top of the front row of piles connected to the front row of pile capping beam; a rear row of piles, which are set in the soil, with the front row of piles located between the rear row of piles and the foundation pit; a rear row of pile capping beam, with the top of the rear row of piles connected to the rear row of pile capping beam; a tie beam, connecting the front row of pile capping beam and the rear row of pile capping beam; and lapped steel sections, which are inserted into the soil, the lapped steel sections are inclined, the lower end of the lapped steel sections is connected to the rear row of piles, and the upper end of the lapped steel sections is connected to the tie beam or the front row of pile capping beam.

This invention discloses a synchronous grouting material for high-water-pressure ultra-large shield tunnels and its preparation method, belonging to the technical field of cement-based materials. The synchronous grouting material for high-water-pressure ultra-large shield tunnels consists of two components, A and B. Component A is cement slurry, including cement, bentonite, highly active mineral admixtures, viscosity modifiers, stabilizers, and water; component B is a water glass solution. The volume ratio of component A to component B is 10–13:1. The synchronous grouting material of this invention has good water dispersibility, slow gel time, fast setting time, and high water erosion resistance. The gel time and setting time of the slurry are controllable and adjustable, avoiding slurry blockage and quickly and effectively filling the gap between the tunnel segments and the surrounding soil. Simultaneously, the slurry exhibits good cohesion in water-rich environments and is not prone to segregation and dispersion, meeting the performance requirements of synchronous grouting materials for high-water-pressure, ultra-large-diameter shield tunnels.

The present application provides a battery housing assembly and a battery. The housing assembly comprises a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part jointly clamp the insulating part and the housing body, the end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part. By providing an integrated electrode column and fixing the electrode column and the housing body by riveting, not only may the structure of the electrode column be simplified, but also may reduce the gap generated by the assembly of the housing assembly and improve the sealing of the housing assembly; by providing a groove at the riveted end of the electrode column, a local thickness between the riveting part and the housing body may be reduced, so as to enable the riveting part to be bent according to the preset position, which may be easy to avoid the cracking problem due to the excessive length of the riveted flange, thereby reducing the difficulty of riveting.

The utility model relates to a kind of filter screen mounting structure and railway vehicle air conditioner, including rectangular filter screen frame, the filter screen frame is inserted into card slot and is installed, at least the spring piece is installed on the side of the filter screen frame, the fixation between card slot is realized by the deformation of the spring piece, the both ends of the spring piece have mounting hole for being fixed with filter screen frame by fastener, the middle body part of the spring piece is composed of three bending, three segment shape is W-shaped as a whole, there are two downward recessed accommodating cavities on the filter screen frame, the two bending points of the bottom of the spring piece respectively sink into corresponding accommodating cavity after deformation downward.This utility model can make filter screen disassembly more smooth, spring piece is not easy to damage, can improve the maintainability and reliability of product.

The invention discloses a thin-wall part with a supporting structure used in a laser powder bed melting additive manufacturing thin-wall cavity, and belongs to the technical field of powder bed melting additive manufacturing. The thin-wall part comprises a thin part main body internally provided with a cavity, the cavity is flat, and a supporting main body is arranged in the cavity; the supporting body is of a rib structure which is reserved in a boundary track after Boolean operation is conducted between a honeycomb structure formed by ribs and the boundary track formed at the maximum cross section of the cavity, the rib structure comprises a main rib part and a boundary rib part, and the main rib part is of a plurality of hexagonal structures defined by the ribs. The boundary rib parts are a plurality of opening rib structures which are located in the boundary track and close to the boundary track; the method is favorable for controlling the deformation of the thin-wall surface and the high-precision and effective forming of the thin-wall cavity part; after the powder bed is melted, residual powder in the cavity can be cleaned, the influence of residual powder agglomeration or caking caused by subsequent heat treatment can be avoided, the part forming quality is guaranteed, and the part performance is improved.

This invention discloses an additive manufacturing-based inertial amplification nonlinear low-frequency vibration isolation metamaterial structure, vibration isolation device, and its performance control method. The vibration isolation metamaterial structure includes a rhombic frame structure, an inertial amplification unit, and a square spring structure. The square spring structure is arranged within the rhombic frame structure, with its two ends connected to a pair of opposite corners of the rhombic frame structure. The elastic extension direction of the square spring structure is parallel to the diagonal of this pair of opposite corners of the rhombic frame structure. The inertial amplification unit has a centrally symmetrical structure, including a rigid rod, two counterweights, and two diagonal rods. The center of symmetry of the inertial amplification unit, the center of the rhombic frame structure, and the center of the square spring structure all coincide in projection. Therefore, the vibration isolation metamaterial structure of this invention significantly widens the bandgap range and enhances low-frequency vibration isolation performance, exhibiting excellent performance in suppressing longitudinal waves in the 0-1000Hz low-frequency range, increasing vibration damping, and energy absorption.

This invention relates to the field of feeder terminal technology, specifically to a feeder distributed automated power distribution terminal, comprising a main control unit and a data acquisition unit. The data acquisition unit is electrically connected to an external control cable. The main control unit is equipped with a support base, on which a square guide rail is fixedly mounted. A sliding frame is mounted on the guide rail, and the sliding frame has a square guide groove for threading through the guide rail. A probe is fixedly mounted on the sliding frame. An elastic body is fixedly mounted on the sliding frame, with its other end fixedly connected to a protective cap. The protective cap has a detection hole for threading the probe. This invention solves the problem of existing distributed feeder terminals being easily damaged during wiring due to exposed probes.

The invention discloses a grouting repair method for settlement of a seismic isolation building, which is characterized in that independent foundations are arranged at the bottom of the existing building, and a seismic isolation support is arranged in a column body on each independent foundation; the independent foundation has differential settlement, and the settlement amount of the existing building is gradually increased from one side to the other side; a grouting protection frame is detachably and temporarily connected to the periphery of the shock insulation support. Through the arrangement of the grouting protection frame, the stress of the shock insulation support during grouting lifting can be shared, and therefore damage to an original shock insulation support is avoided; through the combined arrangement of the frame adjusting upper rod and the frame adjusting lower rod, the early-stage insertion connection and subsequent integral connection of the grouting protection frame can be guaranteed; by means of partitioned and layered grouting, rising force generated by grouting can be controlled easily, and deformation and stress can be stably controlled easily; through linkage arrangement of the sensor and the grouting process, it is guaranteed that deformation and stress of the grouting protection frame in the supporting process meet the design requirements, and the grouting scheme is adjusted in time or the strength of the protection frame is enhanced in time.

The invention discloses a corrugated sandwich bidirectional energy absorption structure and a design method. The corrugated sandwich bidirectional energy absorption structure comprises a unit composed of periodic corrugated curved walls and a sandwich body composed of an upper panel and a lower panel. Controllable buckling and multi-stage collapsing of the corrugated wall plate in the loading process are achieved through preset curvature, a node transition structure and wall thickness distribution. Independent but mutually coupled energy dissipation paths are formed in the units in the two main directions, so that the structure can keep a stable energy absorption mode under the working conditions of compression, shearing and composite impact; according to the structure, a partition triggering mechanism, local plastic hinge control and a shape constraint effect are introduced in design, specific energy absorption, platform stress stability and structure failure resistance are remarkably improved, the structure can be widely applied to traffic equipment collision prevention, aerospace protection, electromechanical equipment buffering, building disaster reduction and other scenes, and light weight and efficient energy absorption are both achieved.

The purpose of the present invention is to solve the heat dissipation problem of an electrical cabinet, and an electrical cabinet with good heat dissipation effect is disclosed, comprising a cabinet body and a top cover, wherein the top cover is arranged above the cabinet body, the cabinet body surface is evenly provided with first through holes, the cabinet body is provided with a bottom plate all around, the upper surface of the bottom plate is fixedly provided with a support rod, the outer surface of the support rod is fixedly provided with a connecting frame, the interior of the connecting frame is fixedly provided with a connecting cylinder, the inner wall of the connecting cylinder is provided with a magnetic ring, the inner and outer sides of the connecting cylinder are provided with a connecting ring, the connecting ring and the connecting cylinder are symmetrically connected with a connecting rod, the interior of the connecting ring is provided with a rotating shaft, the rear end of the rotating shaft is fixedly provided with a coil, and the inner side of the supporting rod is fixedly provided with a connecting block. The present invention can deform the cabinet body of the electrical cabinet, and can deform the cabinet body according to the wind volume and wind direction, thereby increasing the contact area between the cabinet body and the wind and thus increasing the ventilation volume in the cabinet body, and improving the heat dissipation effect of the electrical cabinet.

The present application belongs to the technical field of welding manufacturing of large steel structure, and particularly relates to a multi-layer and multi-pass full penetration welding process for a right-angle structure. The welding process comprises the following steps: cutting a double-sided asymmetric groove on a rib plate, one side of which is a large groove and the other side is a small groove, and polishing the groove; fixing the rib plate and a spoke plate on the small groove side by using a process triangular plate; welding the rib plate and an outer ring as well as the spoke plate, the rib plate and the spoke plate being welded as horizontal welding, and the rib plate and the outer ring being welded as vertical welding, and removing the process triangular plate; and performing non-destructive testing and annealing heat treatment on the weld. The welding process reduces labor intensity, improves the working environment, and ensures the stability and consistency of the welding quality.

The application provides a large-span under-hanging arc-shaped steel truss construction method, which comprises the following steps: firstly, a three-dimensional model is established and construction condition simulation is performed to optimize structure design; then, an adjustable arc-shaped assembling jig frame is erected on the ground, arc-shaped main steel truss assembling is completed on the arc-shaped assembling jig frame, a boom, a conversion beam and an under-hanging structure are installed to form an integrated whole lifting unit; then, a hydraulic synchronous lifting system is installed on the top of a bearing steel column to perform graded lifting and monitoring, and is fixed and installed after lifting in place; finally, graded unloading and structure monitoring are performed, and subsequent structure construction and completion acceptance are performed. The application adopts ground arc-shaped jig frame whole assembling, and the arc-shaped truss is formed at one time, so that linear precision is high, deviation is small, large-area full scaffold is cancelled, materials are saved, space is released, multi-specialty cross operation can be realized, high-altitude operation is greatly reduced, safety risk is reduced, construction efficiency is improved, structure stress is ensured to be uniform, deformation is controllable, and construction quality is stable and reliable.

The invention discloses a multi-span continuous tensioning prestress fish-belly sill supporting structure and a construction method, and relates to the technical field of civil engineering. The problem that an existing prestress fish-belly sill supporting system is complex in structure is solved, and the problems that due to the fact that prestress of the steel strands needs to be applied in a segmented mode, construction time is prolonged, and foundation pit deformation control is not facilitated are solved. The supporting structure comprises a plurality of sections of fish-belly sills, a bogie, diagonal bracings, a steel strand and two anchorage devices, the steering frame and the diagonal bracings are arranged at the joint of the two adjacent sections of fish-bellied sills, and the diagonal bracings abut against the fish-bellied sills; the two anchorage devices are respectively arranged at angle braces at the corners of the foundation pit; the fish-belly sill comprises a string beam and a plurality of web member parts arranged on one side of the string beam; a first roller is arranged at the end part of the web member part; one end of the steel strand is connected to one anchorage device, and the other end of the steel strand penetrates through the first idler wheel of the web member component of each section of the fish-belly sill and the bogie and then is anchored to the other anchorage device. The invention further provides a construction method of the supporting structure.

The invention relates to an irradiation treatment system for local modification of a semiconductor, and belongs to the technical field of semiconductor processing. The irradiation treatment system for local modification of the semiconductor comprises a bearing table, a shielding mechanism, a positioning detection assembly and a control module, wherein the bearing table is used for bearing and fixing a semiconductor wafer; the shielding mechanism comprises a shielding plate and a driving assembly, and a radiation opening is formed in the shielding plate; the surface, facing the radioactive source, of the wafer is a processing surface; the edge position of the shielding plate is fixed, and the driving assembly is connected with the center point of the shielding plate and drives the center point to ascend and descend in the axial direction, so that the shielding plate generates elastic deformation to form an arc-shaped surface; the positioning detection assembly is used for detecting contact between the shielding plate and the machining face. The control module controls the center point of the shielding plate to ascend and descend according to the contact signal, so that the arc-shaped face shape of the shielding plate is matched with the arc-shaped shape of the machining face. According to the irradiation treatment system for semiconductor local modification, the reliability and the yield of a semiconductor local modification process can be improved.

The invention provides a thick-plate narrow-gap titanium alloy double-sided swing laser powder feeding additive process method, which is used for completing high-quality joint of titanium alloy plates with the thickness of 50mm and thicker and eliminating the defects of incomplete fusion, air holes, cracks, oxidation and the like. Welding deformation is reduced, the process stability is improved, and the problems of low efficiency and welding material waste caused by multi-layer and multi-pass traditional surfacing are solved; the heat input and the production cost are reduced, the production period is shortened, and meanwhile it is guaranteed that the mechanical property of a jointed structural part is superior to that of base metal. Through the integrated design of special device customization, accurate parameter matching and double-face symmetrical material adding, the design of a special symmetrical inverted trapezoidal groove, the design of an extensible red copper powder feeding pipe, the design of an extensible material adding protection cover and sectional type accurate process parameter matching are adopted.