45results about How to "Improve surface integrity" patented technology

The invention relates to a modified epoxy resin adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials. The modified epoxy resin adhesive comprises the following components in parts by weight: 90-120 parts of epoxy resin, 8-25 parts of a curing agent, 1-3 parts of a diluent, 0.5-5 parts of a curing accelerator, 4-18 parts of graphite, 1-4 parts of a modified flexibilizer and 10-30 parts of nano diamond / boron nitride (PDA), a polyurethane single soft and hard segment structure and a high-temperature-resistant oxazolidinone ring in the modified toughening agent cooperate with poly (p-phenylene ether sulfone) resin, so that the toughness is effectively enhanced, and crack propagation is inhibited; boron nitride is modified by nano-diamond, wear resistance is optimized, good electric insulativity and chemical corrosion resistance are given to a matrix, polydopamine can promote a compound to be evenly dispersed in the epoxy resin matrix, wear resistance and adhesive force are improved, and the prepared modified epoxy resin adhesive has good toughening and wear-resisting effects and also has the advantages of being good in toughness, good in toughness and good in wear resistance. And the cable also has excellent high temperature resistance, corrosion resistance and electric insulation effects.

The invention provides a typical component shot peening strengthening process design method. The typical component shot peening strengthening process design method mainly comprises the steps that 1, typical component shot peening strengthening parameter design technical requirements are determined; 2, a reasonable shot blasting material is selected based on typical component technical requirements; 3, establishing a shot blasting process parameter optimization model based on the neural network; and 4, optimizing and solving shot blasting process parameters on the basis of the surface strengthening requirements of the part. The method is suitable for shot peening strengthening process design with the purpose of improving fatigue strength and stress corrosion breaking strength of typical components, and other parts can be used for reference.

The invention belongs to the technical field of fiber reinforced composite material recovery, and particularly relates to a full-process recovery method of a fiber reinforced composite material. The modified fiber is prepared by constructing a dynamic coordination crosslinking interface layer formed by Co < 2 + > and phenolic hydroxyl groups and amino groups in polydopamine on the surface of the fiber. And then, preparing the fiber reinforced composite material by taking the modified fiber and resin as raw materials. A fiber reinforced composite material is placed in a coordination competitor, cobalt-oxygen and cobalt-nitrogen coordination bonds of an interface layer are competitively dissociated and interface bonding is destroyed under the heating condition by utilizing the stronger coordination capacity of the coordination competitor to Co < 2 + >, and then ultrasonic treatment is assisted, so that efficient and nondestructive separation of fibers and a resin matrix is realized. The process method is simple, convenient to operate, green and environmentally friendly, and has important practical significance and industrial application prospects.

The invention provides a composite manufacturing method for improving the integrity of the side face of a 316L part manufactured through selective laser melting additive manufacturing. The composite manufacturing method comprises the following steps that S1, selective laser melting additive manufacturing is conducted on the part; in this step, each layer is divided into a boundary region and a core region, and differentiated scanning strategies are implemented. Specifically, the boundary area adopts a scanning strategy of parallel section contour lines, and the core area adopts a conventional strip or chessboard type scanning strategy, so that the surface quality is optimized; and S2, ultrasonic surface deep rolling post-treatment is conducted on the side face of the part. The method is characterized in that through the combination of partition scanning and post-treatment, the excellent surface integrity, including high surface hardness, high corrosion resistance and low surface roughness, of the side face of the additive manufacturing 316L stainless steel part is achieved. Particularly, the surface roughness reaches the precision grinding level, meanwhile, the thin-wall part manufactured through the method shows extremely high strength and plasticity at the same time, and therefore the requirement for high-performance application is met.

The invention provides a shot blasting method for strengthening the surface of a gear. The shot blasting method mainly comprises the following steps: step 1, determining basic parameters of a gear material and dividing a blasted material area; 2, calculating the shot blasting surface coverage rate based on shot blasting parameters such as the shot size, the crater diameter and the shot number; step 3, randomly generating and calculating the spatial position of the multi-shot peening shot; and 4, shot peening strengthening parameter design with the gear surface roughness and the residual compressive stress as targets is carried out. According to the method, the gear roughness and residual stress calculation method is combined, the influence of various shot blasting parameters on the surface strengthening integrity of the gear is analyzed, the tooth surface performance of the gear is improved, and the fatigue life of the gear is prolonged.

The utility model discloses a lithium battery pole piece thickness control device which comprises a base, the upper surface of the base is fixedly connected with a fixing frame, the rear surface of the fixing frame is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a driving roller, and the inner surface of the fixing frame is slidably connected with an adjusting block. An extrusion roller is rotatably connected to the inner surface of the adjusting block, a connecting rod is fixedly connected to the upper surface of the adjusting block, a first adjusting frame is fixedly connected to the upper surface of the connecting rod, and through the arrangement of the two guide frames, a pole piece to be compacted can be conveniently guided and accurately guided to the center position of the extrusion roller, and it is guaranteed that the position of the pole piece is accurate; the compaction quality of the pole piece is improved, the surface and structural integrity of the pole piece is protected, the motor drives the two-way screw rod to rotate so as to drive the supporting block to move to adjust the distance between the guide frames, the device can be suitable for guiding the pole pieces of different specifications, and the applicability of the device is improved.

The invention provides a laser marking method for an ophthalmic surgical instrument, which comprises the following steps: (a) data acquisition: carrying out a preliminary laser marking experiment on the surface of a target material for the ophthalmic surgical instrument, and acquiring laser marking parameters and effect data corresponding to the marking parameters to obtain a marking data set; (b) data preprocessing: preprocessing the marking data set; the preprocessing comprises the steps of removing noise, filling missing values and mapping the marking data to the same scale by using Max-Min normalization; (c) neural network model establishment: setting parameters of a BP neural network to establish a BP neural network model; (d) training and optimizing: training the data obtained in the step (b) for multiple times by using the BP neural network model; and (e) parameter optimization and verification. The optimal parameter setting is determined after multiple times of training, the marking effect is ensured, meanwhile, the surface integrity of the instrument is protected to the maximum degree, and the marking precision is effectively improved.

The invention provides a surface-modified perovskite nanocrystal and a preparation method and application thereof, and the surface-modified perovskite nanocrystal comprises: a perovskite nanocrystal having a chemical composition of ABX3; wherein A is selected from at least one of Cs < + >, CH3NH3 < + > and HC (NH2) 2 < + >; b is selected from at least one of Pb < 2 + >, Sn < 2 + >, Ge < 2 + > and Mn < 2 + >; x is selected from halogen anions; the surface of the perovskite nanocrystal is coated with an organic ligand layer; the organic ligand comprises a halogenated organic ligand. In the surface modified perovskite nanocrystal, the surface of the perovskite nanocrystal is coated with the organic ligand layer, so that surface defects can be effectively passivated at the same time, and the surface integrity and the crystallization quality of the nanocrystal are remarkably improved. And due to the surface consistency, the defect state density is reduced, and the exciton and phonon coupling coefficient is reduced, so that a non-radiative composite channel is remarkably inhibited, and the optical performance of the perovskite nanocrystal is remarkably improved.

The invention provides a turbine disc mortise side edge rounding model construction method. The turbine disc mortise side edge rounding model construction method comprises the steps that a part mortise structure model is constructed; building a model of the mortise structure according to design requirements; a mortise fillet is constructed according to the middle difference; performing mortise rounding establishment on a computer, and performing construction according to a median error; extracting the rounding surface in a sheet body mode to form a plurality of sheet bodies; rounding center virtual lines of the straight line segments are sequentially extracted along the groove type; constructing a rounding straight line of the straight line segment and other related lines; forming a trimmed rounded curved surface; constructing an envelope sweeping surface between adjacent straight line segments and trimming a curved surface; sewing the newly constructed swept surface to form a complete transition envelope surface by using a sewing function; sewing the middle-difference inverted round sheet body; sewing the rounding surface at one time along the groove shape to form a new rounding surface; and generating a program to finish numerical control machining of the part. The method has the advantages that the processing risk of over-cutting and under-cutting in the processing can be solved from the source, the high surface integrity of mortise side edge rounding is improved, 100% qualification is achieved, and higher value is created.

The invention discloses a cavitation shot peening surface strengthening method and system based on cooperation of high hydrostatic pressure and spherical focused ultrasound. The method comprises the following steps: establishing and maintaining a hydrostatic pressure environment higher than 0.1 MPa in a high-pressure processing cavity filled with a degassing liquid medium; the to-be-machined surface of the workpiece is positioned in a sound field focal region of the spherical focused ultrasound transducer; and in the high hydrostatic pressure environment, a transducer is driven to work so as to generate a cavitation bubble group in a space confinement range in a focal region of the transducer, and meanwhile, the workpiece is controlled to move according to a preset path, so that cavitation collapse impact acts on a target region on the surface of the workpiece. The device comprises a high-pressure processing cavity, a spherical focused ultrasonic transducer, a multi-degree-of-freedom movement mechanism and a control system. Through cooperation of high hydrostatic pressure constraint and the spherical focusing sound field, precise localization and energy strengthening of the cavitation effect are achieved, a plastic deformation layer can be efficiently and controllably introduced to the surface of a metal material, the surface hardness can be remarkably improved, a residual compressive stress layer is formed, surface layer grains are refined, and the method is suitable for precise surface strengthening of complex components.

The utility model relates to the technical field of flange welding devices, and discloses a garbage pipeline flange welding device which comprises a frame body, welding equipment is arranged on the side wall of the frame body, and a positioning assembly is arranged on the side wall of the frame body. According to the garbage pipeline flange welding device, a limiting block abuts against the inner wall of a pipeline and the inner wall of a flange, the axis of the pipeline coincides with the axis of the flange, a driving lead screw rotates to drive a driven lead screw to rotate through transmission of a belt, the driven lead screw drives a limiting ring to transversely move, and the limiting ring pushes an outer clamping block to abut against the outer wall of the pipeline; by clamping the inside and the outside of the pipeline, it is ensured that the pipeline and the flange are kept at the stable positions in the welding process, the welding seam assembly quality problem is avoided, the welding quality is improved, the rotating wheel rotates to drive the pipeline and the flange to rotate, and due to the fact that the position of welding equipment is not changed, it is ensured that the welding equipment can evenly and continuously apply welding seams; and the non-uniformity and the interruption of welding seams are avoided, and the welding quality is improved.

The invention discloses bridge steel structure machining and bending equipment, and relates to the technical field of bridge steel structure machining, the bridge steel structure machining and bending equipment comprises a bottom plate, a vertical plate is arranged at the upper end of the bottom plate, a servo motor is arranged on one side of the vertical plate, the output end of the servo motor penetrates through the vertical plate and is provided with a rotating rod, and a first bearing seat is arranged at the upper end of the bottom plate; two first gears are symmetrically arranged on the outer surface of the rotating rod, a transmission toothed belt is arranged on the outer surfaces of the first gears, a second gear is arranged on the inner surface of the other end of the transmission toothed belt, a first rotating shaft is arranged on the inner surface of the second gear, and a third gear is arranged on the outer surface of the first rotating shaft; and two second bearing seats are symmetrically arranged at the upper end of the bottom plate. According to the bending equipment for bridge steel structure machining, the bending length can be conveniently adjusted, steel structures with different thicknesses can be stably bent, the steel structures are stably clamped before bending, friction is effectively reduced in the bending process, and damage to the surfaces of the steel structures is reduced.

The invention discloses a device and method for improving laser and electrolysis combined machining efficiency and stability. The method for improving the laser and electrolysis combined machining efficiency and stability comprises the steps that a laser light source, a power source and the device for improving the laser and electrolysis combined machining efficiency and stability are provided, a workpiece to be machined is placed at the outlet end of the combined tool electrode, and the power source is electrically connected with the combined tool electrode and the workpiece to be machined; a laser beam provided by a laser light source and an electrolyte provided by an electrolyte module cooperatively pass through the constraint capillary tube and the composite tool electrode in sequence to be conveyed to a machining area of a workpiece to be machined, and laser and electrolysis composite machining is conducted after a power source is switched on. According to the laser and electrolysis combined machining device provided by the embodiment of the invention, the conical constraint capillary tube is introduced, so that the influence of coupling errors on the laser coupling efficiency is reduced, the coupling range required by efficient laser conduction is expanded, and the laser coupling stability is improved.

This invention relates to a teardrop-shaped chip divider for precision broaching of tenon grooves in aero-engines, belonging to the field of aero-engine manufacturing technology. The chip divider features a smooth contour composed of arcs and straight lines within a specific range, and is tangentially connected to the back face of the cutting teeth. This results in a large, smooth, streamlined cross-section without sharp points, effectively solving the industry problem of sharp-cornered chip dividers scratching the machined surface of the workpiece during precision broaching. While ensuring chip breaking and chip separation functions, it significantly improves the surface roughness quality of the tenon groove. It is suitable for precision broaching of high-requirement parts such as compressor discs and fan discs, improving blade machining efficiency.

This invention provides a wafer gripping device and wafer testing equipment based on van der Waals forces, relating to the field of wafer testing technology. Each adsorption assembly includes multiple adsorption elements arranged at intervals, each adsorption element including a connecting post and a van der Waals force patch. The connecting post is connected to a support, and the van der Waals force patch is attached to the bottom surface of the connecting post and contacts the wafer, thereby adsorbing the wafer. The van der Waals force patch is made of a flexible material, and the surface in contact with the wafer has a biomimetic microstructure. The pusher mechanism includes a driving element and a pusher. The driving element is mounted on the support, and the pusher is configured to move downward under the drive of the driving element to push the wafer, thereby causing the wafer to detach from the van der Waals force patch. This embodiment is based on the principle of van der Waals force, and amplifies the van der Waals force through the design of biomimetic microstructures, achieving stable adhesion to the wafer. The pusher can release the wafer, achieving a low-damage and safe and reliable gripping effect, improving wafer yield and surface integrity.

The application discloses a carbon material cutting positioning table, a cutting equipment and a cutting process, and belongs to the technical field of carbon processing. The carbon material cutting equipment includes a carbon material cutting positioning table, a self-protection cutting mechanism and a vibration suppression protection mechanism. The application realizes coupling enhancement of positioning stability and vibration suppression efficiency in the cutting and processing of special-shaped carbon materials through deep cooperation of the material self-adaptive positioning mechanism, the special-shaped positioning assembly, the self-protection cutting mechanism and the vibration suppression protection mechanism. The overall technical effect of single mechanism independent operation is significantly better. The cutting edge collapse rate of the special-shaped carbon material is significantly reduced, the section quality is greatly improved, and automatic, self-adaptive and efficient precision cutting is realized.

The present invention relates to the technical field of surface grinding devices, and in particular to a large-scale bearing surface grinding device and a grinding quality detection method, which includes an electrical control module and a mechanical module, wherein the mechanical module includes a control cabinet, a tool holder, a long-stroke movable track, a suction cup fixture, a plurality of bolts, a plurality of nuts and a power mechanism, wherein the bottoms of the tool holder and the suction cup fixture are both slidably connected to the top of the long-stroke movable track, the power mechanism is fixedly connected to the top of the tool holder, and the interior of the suction cup fixture is clamped with a bearing ring; the electrical control module includes a controller with a display screen and buttons. The present invention has the function of adjusting the processing intensity of the bearing ring by the power mechanism in real time, and the central part of the connection between the grinding disc and the main shaft is converted into the radial vibration of the grinding disc, and ultrasonic vibration-assisted grinding parallel to the processing surface and perpendicular to the grinding line speed direction can reduce the grinding force between the workpiece and the grinding wheel, and improve the surface quality of the ground workpiece.

This application discloses a bipolar molecularly co-modified perovskite nanocrystal and its preparation method. After nucleation of CsPbBr3 nanocrystals, zinc bromide and 1-naphthalenesulfonic acid (NSA) are introduced for post-treatment, resulting in dual passivation and physical coating of defect states on the nanocrystal surface. Zinc bromide provides excess Br. ‑ Zn fills surface halogen vacancies. 2+ Occupy Pb 2+ Vacancy suppression of deep-level defects; NSA's sulfonic acid group -SO3 ‑ As strong coordination sites, they replace and firmly anchor weakly bound oleic acid / oleylamine ligands to the surface, and their aromatic ring structure stabilizes the surface through cation-π interactions. Zinc bromide and NSA work synergistically to achieve efficient and deep passivation of surface defect states of CsPbBr3 nanocrystals. Perovskite nanocrystals exhibit high photoluminescence quantum yield, narrow fluorescence peak, and uniform size distribution, and are stably dispersed in organic solvents for a long time. The ligands on the nanocrystal surface are firmly bound, improving optical and structural stability, and the process is simple and efficient.

This invention relates to the field of hydraulic press technology and discloses a hydraulic press device for producing metal trash cans, including a main body with four positioning rods fixedly connected to the top of the main body. When the arc-shaped plate continues to press the top of the can and rotates, it provides guiding friction to the can body. At this time, the metal area at the top of the can body is bent and shaped as the arc-shaped plate rotates. When the can body pushes the arc-shaped plate upwards, the arc-shaped plate pre-presses the metal at the top of the can body. Then, when the arc-shaped plate drives the metal of the can body to rotate and curl the edge, it enhances the curling force while reducing the likelihood of cracks appearing in the metal body during the curling process. By assisting in increasing the curling strength of the metal body, the arc-shaped plate further improves the integrity of the curling angle and increases the curling efficiency.

The application relates to a decorative assembly, an interior trim module and a transportation vehicle. The transportation vehicle comprises an interior trim panel, a guide rail and a backrest lock catch. The backrest lock catch is arranged in a slide rail passage on the interior trim panel and is connected to the guide rail. The decorative assembly comprises a mounting member and a flexible cover member. The mounting member is used for mounting on the interior trim panel and covering the slide rail passage on the interior trim panel. The mounting member is provided with a mounting hole. The mounting hole is adapted to communicate with two opposite sides of the interior trim panel. The flexible cover member is connected to the mounting member in a clamping manner. The flexible cover member covers at least part of the mounting hole. The flexible cover member has a first flexible part and a second flexible part arranged side by side. The first flexible part and the second flexible part define a through gap. In the arrangement of the embodiment, the decorative assembly can shield the slide rail passage, so that the appearance of the interior trim panel is relatively simple.

The application relates to the technical field of numerical control machining, and discloses a metal part cutting machining method and system based on path planning, which comprises the following steps: fusing and calculating the cutting removal amount requirement and the surface geometric characteristics of a metal part, laying nodes on the metal part according to a density field obtained through calculation; constructing a topological connection scheme, analyzing the thermal cumulative effect of the topological connection scheme, selecting a target topological connection scheme, and outputting an initial tool path trajectory; planning the initial tool path trajectory by taking a residual stress direction field as a conditional constraint, adjusting the direction of the initial tool path trajectory according to a feeding direction; judging the feasibility of the tool path trajectory after direction optimization, correcting the tool path trajectory according to a judgment result, and outputting a final planning path. The application can realize the collaborative optimization of machining efficiency and machining precision, and effectively suppresses the machining deformation caused by cutting thermal accumulation and residual stress.

The utility model discloses a waterproof bag which comprises a bag main body, and a front part, a bag bottom and a rear part of the bag main body are formed by bending integral waterproof leather; the waterproof leather comprises a polyurethane wear-resistant layer, a waterproof simulation leather layer, a bottom sealing base cloth layer and a waterproof breathable layer which are sequentially arranged from outside to inside. The outer surface of the bag is a place easy to contact with the outside and is also a part easy to wear, so that the outer surface of the waterproof leather is coated with the polyurethane wear-resistant layer, the surface of the waterproof leather is effectively protected, the wear process of the whole outer surface of the bag is effectively prevented or slowed down, and the service life of the bag is prolonged. Waterproof failure caused by abrasion of the waterproof simulation leather layer is avoided, the waterproof performance of the waterproof leather is prolonged, and the service life of the bag is comprehensively prolonged.

The invention belongs to the technical field of thermal barrier coating preparation and surface finishing, and particularly relates to a thermal barrier coating full-process staged tumbling finishing machining method. The thermal barrier coating comprises a base body, a bonding layer and a ceramic layer, and the machining method is different combination sets of base body surface roll-polishing finishing machining, bonding layer surface roll-polishing finishing machining and ceramic layer surface roll-polishing finishing machining. The technological parameters adopted by the base body surface barreling finishing processing are optimized through the base body surface evaluation index P; the technological parameters adopted by the binding layer surface roll-polishing finishing processing are optimized through the binding layer surface evaluation index Q; and technological parameters adopted by the ceramic layer surface tumbling finishing processing are optimized through the ceramic layer surface evaluation index R. According to the method, the surface integrity of the base body, the bonding layer and the ceramic layer in the manufacturing process of the thermal barrier coating can be synergistically improved, multi-dimensional surface evaluation indexes are constructed from the processing requirements of the multi-layer structure surface, and refined selection and optimization of staged process parameters are achieved.

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and can reduce the damage risk near the position of a display panel hole in the film tearing process and improve the yield of the display panel. The display panel comprises a display area and a hole area, the display area surrounds the hole area, and the display panel comprises a substrate; the screen body function layer is located on one side of the substrate, a first through hole is formed in the screen body function layer, and the first through hole is located in the display area; the protective layer is located on the side, away from the substrate, of the screen body function layer, a second through hole is formed in the protective layer, the first through hole is communicated with the second through hole, and at least one groove is formed in the surface of the side, away from the substrate, of the protective layer; wherein the groove is communicated with the second through hole, and the depth size of the groove is smaller than the thickness size of the protection layer.

The utility model relates to the technical field of wooden doors, and discloses a wooden door with an anti-collision buffering function, which comprises a door frame main body, a wooden door main body is arranged in the door frame main body, the outer surface of the wooden door main body is wrapped with a buffering protection pad, and the buffering protection pad is made of rubber materials with high elasticity and wear resistance. According to the wooden door with the anti-collision buffering function, the buffering protection pad and the buffering springs are arranged, when the wooden door is collided, the buffering protection pad can firstly make contact with a colliding object, elastically deform and absorb part of collision energy by means of the high elasticity and abrasion resistance of the buffering protection pad, meanwhile, the buffering springs in the buffering protection pad are compressed, and therefore the buffering protection pad is prevented from being damaged. The residual impact force is converted into elastic potential energy of the spring, impact is further buffered, impact force generated when the door body is impacted is effectively reduced, the wooden door is protected against damage, the service life of the wooden door is prolonged, and economic cost caused by frequent replacement of the door body is reduced.

The invention discloses a method for improving the surface performance of 3D printed pure copper (Cu) through plane ultrasonic rolling, and belongs to the technical field of metal surface treatment. The method for improving the surface performance of the 3D printing pure copper through plane ultrasonic rolling comprises the following steps that a 3D printing pure copper workpiece is fixed through a clamp, and an ultrasonic surface rolling technology is used for treatment. According to the method, the ultrasonic plane rolling technology is applied, the defects caused by additive manufacturing on the surface layer are eliminated, the defects, holes and the like existing in the surface layer are closed, meanwhile, the surface roughness is reduced, and the structure is refined. Under the action of ultrasonic high-frequency vibration and static-load rolling of the ultrasonic plane rolling technology, the density of a material surface modification layer can be increased, micro pores and cracks in the material surface modification layer are effectively sealed, micro defects are reduced, and the friction and wear performance is improved. And microscopic structure refinement and dislocation proliferation can be realized through USRP treatment, so that the microhardness is improved.

The application belongs to the technical field of semiconductor material laser processing. A laser-assisted chemical mechanical polishing device and method based on homogenized optical fiber are provided, which comprises a laser generator, an optical path design unit, a scanning galvanometer, a fine polishing unit and a two-dimensional motion platform. The optical path design unit homogenizes and shapes the pulsed laser through the homogenized optical fiber to obtain a square flat-top light spot, and the scanning galvanometer and the two-dimensional motion platform are cooperatively controlled to realize the close arrangement of the light spots. The method determines the galvanometer scanning parameters by matching the platform moving speed, the wafer size and the light spot size, so that the wafer and the polishing disc form relative motion, the laser rough machining and the fine polishing are synchronously performed, and the dropping of the polishing liquid does not affect the laser processing. The application solves the problems of low efficiency, process fragmentation and poor processing consistency of the traditional chemical mechanical polishing, and the single scanning is equivalent to the effect of traditional multiple scanning, which greatly shortens the processing time, improves the processing efficiency and surface uniformity, and is suitable for large-size SiC wafer super-smooth non-damage polishing.

The invention discloses an electromagnetically-driven sheet surface impact strengthening and toughening tool and a process thereof.The electromagnetically-driven sheet surface impact strengthening and toughening tool comprises a workbench, an edge pressing positioning device and a stepping rotation driving output end, an outer barrel wrapping sleeve is fixedly arranged above the top face of the workbench, and an electromagnetic driving coil is embedded in the top of the outer barrel wrapping sleeve; the bottom end of the stepping rotation drive output end is fixedly connected with an electromagnet assembly, a high-alloy steel male die is movably arranged in the outer cylinder wrapping sleeve, a copper ring is fixedly arranged on the top of the high-alloy steel male die, and steel balls which are evenly distributed are arranged on the bottom face of the high-alloy steel male die. According to the method, the male die with the protruding high-strength steel balls is introduced to replace traditional shots, short-period and high-frequency repeated high-speed impact and efficient shot peening strengthening treatment of the male die on the surface of the plate is achieved, the fatigue strength of the plate is improved, the technological process is simplified, the manufacturing period is shortened, and the production cost is reduced. And the production efficiency is improved.

The present application relates to the surface strengthening technical field of rotating body type parts, in particular to a rotating body type part surface thermal spraying-cryogenic ironing and pressing strengthening method, comprising: (1) initial grinding; (2) first stress relief treatment; (3) first coloring and flaw detection; (4) first cryogenic ironing and pressing treatment; (5) surface pretreatment; (6) preheating before spraying; (7) part spraying; (8) fine grinding; (9) second stress relief treatment; (10) second cryogenic ironing and pressing treatment; (11) second coloring and flaw detection. The present application provides a rotating body type part surface thermal spraying-cryogenic ironing and pressing strengthening method, which effectively improves the wear resistance, fatigue resistance, corrosion resistance and surface integrity and other comprehensive performance of the rotating body type part, significantly improves the service life of the part, can be widely applied in the field of aviation rotating body type part manufacturing and repair technology, and has significant economic benefits.