1768 results about "Ultrasonic vibration" patented technology

The invention discloses an anti-fouling piezoelectric ceramic membrane which comprises a support body, a coil and a piezoelectric ceramic separation layer, the support body is made of porous ceramic with a through hole in the middle; the coil is a closed loop composed of a lead coil and a crystal oscillator; the piezoelectric separation layer is coated on the inner wall of the through hole of the support body; and the coil is arranged between the support body and the piezoelectric ceramic separation layer. When a medium containing electrolyte passes through a membrane hole, the coil generates induction direct current, the direct current is converted into positive wave pulse current through the oscillator, the wound and overlapped piezoelectric ceramic membrane separation layer is excited, ultrasonic vibration is generated, and therefore the membrane dirt blocking condition is reduced, the use efficiency of the ceramic membrane is improved, and the maintenance and use cost is reduced.

The invention belongs to the technical field of liquid metal coating and infiltration in grinding machining, and particularly relates to a temperature-control ultrasonic composite liquid gallium auxiliary grinding device and method for a micro engine blade, and the device comprises a fluid conveying module, a temperature adjusting module, a machining module, an ultrasonic vibration module and an electromagnetic field generator. Temperature control of liquid gallium is achieved by arranging a microwave cavity and a cooling system, stable supply is guaranteed through inert gas and a liquid gallium conveying pipeline, and uniform coating and ultrasonic vibration infiltration on the surface of the blade of the micro engine are achieved by combining an ultrasonic transduction assembly and a spraying nozzle. The electromagnetic field generator further enhances the adhesion and lubrication effects of the liquid gallium on the grinding wheel and the blades. The defects of insufficient grinding temperature control and lubrication of a traditional grinding wheel are overcome, the grinding temperature rise and the friction coefficient are effectively reduced, thermal damage and surface deformation are avoided, and the machining precision and the surface quality of complex curved surfaces and tenon tooth parts are improved.

The invention relates to a cable joint resonance real-time diagnosis method and device and a medium, and belongs to the technical field of power equipment state monitoring, and the method comprises the following steps: obtaining a high-frequency current signal collected by a high-frequency current sensor and an ultrasonic vibration signal collected by an ultrasonic sensor array; performing signal synchronization on the high-frequency current signal and the ultrasonic vibration signal, and extracting a high-frequency current feature and an ultrasonic array feature; calculating a dominant frequency synchronization index, a normalized phase stability index and a nonlinear coupling index based on the high-frequency current characteristics and the ultrasonic array characteristics, and performing weighted summation to determine a fusion confidence coefficient function; and judging whether resonance exists or not based on the fusion confidence coefficient function, and if so, carrying out resonance source positioning. Compared with the prior art, the method has the advantages of high precision, low false alarm and high adaptability, and is suitable for key power system scenes such as new energy grid connection, urban smart power grids and wind power.

The invention belongs to the technical field of hard and brittle crystal material micropore machining, and particularly relates to an ultra-precision micropore multi-energy field coupling machining method and system.The method comprises the steps that the laser pulse frequency and power are set according to the workpiece material type and the micropore depth-diameter ratio, and a laser focus is positioned at the inner hole bottom of a workpiece; a modified structure extending in the axial direction of a hole is formed by controlling matching of a light spot and a hole diameter and the movement track of the light spot, in the machining process, a plasma nozzle and laser coaxially move, a modified area is removed in real time, a heat affected zone and the hole shape taper are restrained, meanwhile, vibration is applied to a workpiece through an axial ultrasonic vibration device, and machining precision is improved. And chip discharge is promoted, and stress and crack generation are reduced. The problems of serious thermal damage, poor hole shape precision, low machining efficiency and high energy consumption in the micropore machining process in the prior art are solved, and high-quality and high-precision machining of the high-depth-diameter-ratio micropore of the hard and brittle transparent crystal material is achieved.

The invention discloses a novel electrolytic tank pipeline filter and a self-cleaning system. The novel electrolytic tank pipeline filter comprises a multi-stage filtering part, the self-cleaning system and an intelligent control system, the multi-stage filtering part comprises multi-stage filter elements arranged in the material pipeline, and the multi-stage filter elements are arranged from large to small according to the filtering particle size to form a filtering gradient; the self-cleaning system acts on the multi-stage filter element part at the same time or in a time-sharing manner on the basis of a fluid reverse recoil principle; the self-cleaning system is combined with pulsating flushing control, so that the filter element is separated from a filter cake at low loss; the multi-stage gradient filtration is adopted, impurities are efficiently and accurately intercepted, the filter elements with the particle sizes from large to small are arranged in a gradient mode, the first-stage titanium alloy filter element intercepts large particles, the second-stage polytetrafluoroethylene membrane filters tiny impurities, the efficiency is improved through graded interception, the loss of the filter elements is reduced, and the material purity and the hydrogen production quality are guaranteed. The multi-element self-cleaning technology is adopted, low-loss deep cleaning is achieved, and the self-cleaning system integrates multiple technologies such as fluid reverse backflushing, pulsating flushing, ultrasonic vibration and a pulsed electric field.

The invention relates to the technical field of agricultural machinery, and discloses an adjustable soil covering device for ginger planting, comprising: a mobile vehicle, the front side of the bottom of which is provided with a front wheel matched with the curved surface of a ridge, and the rear side of which is provided with a rear wheel with a ditch edge profiling structure; the central mixing bin is integrally formed in the middle of the mobile vehicle chassis, and a rotatable scattering disc is coaxially arranged in the central mixing bin. The mixing process of soil and fertilizer is innovatively integrated in the central mixing bin, and the fertilizer is sucked from a storage box through a Venturi negative pressure generator in a pneumatic conveying mode; the high-pressure fan provides airflow power to feed the materials into the mixing bin, non-blocking automatic fertilizer supply is achieved, the fertilizer and soil intersect in the bin, the materials are guided to spirally fall down by means of the tapered spiral flow guide column, the mixing path is prolonged, meanwhile, the ultrasonic vibration plate continuously vibrates to form lumps, it is guaranteed that the two materials are highly and evenly mixed, and the mixing efficiency is improved. And a mixed substrate with stable quality is provided for subsequent precise soil covering.

The invention discloses a cosmetic glass bottle surface polishing method and system, and the method comprises the steps: carrying out gradient mesh abrasive composite modification on a sand leather base material, and carrying out three-dimensional cutting according to the surface curve contour of a glass bottle through a laser cutting technology to form a composite sand leather polishing piece; the composite sand leather grinding piece is assembled at the executing end of a six-axis linkage mechanical arm, partition differentiated grinding is carried out according to the surface pollutant distribution density image recognition result, and a glass bottle rough blank obtained after preliminary grinding is obtained; performing synchronous purging on the surface of the glass bottle rough blank by adopting inert gas flow with a micro-bubble generation device, and controlling the composite sand leather polishing piece to perform micro-vibration at the same time, so as to obtain a glass bottle semi-finished blank; and the glass bottle semi-finished blank is placed in a sealed cavity to be sprayed, final polishing is carried out in cooperation with pulse type ultrasonic vibration, and a cosmetic glass bottle finished product is obtained. According to the embodiment of the invention, high-precision grinding of the curved surface of the glass bottle can be realized, and the surface cleanliness and the gloss uniformity are improved.

The invention provides a full-laser multi-energy-field remanufacturing device and method, and relates to the technical field of laser cladding remanufacturing, and the full-laser multi-energy-field remanufacturing device comprises a laser system, an energy field auxiliary system, a powder conveying system, a monitoring system and an intelligent management and control system; the energy field auxiliary system comprises a magnetic field generation unit and an ultrasonic vibration unit; the monitoring system is used for collecting multi-source sensing data reflecting the state of the molten pool in real time; the intelligent management and control system comprises a machine learning digital twinning module used for acquiring historical process data and receiving and performing analysis and prediction based on multi-source sensing data and the historical process data so as to generate a dynamic cooperative control instruction; and the numerical control execution module is used for receiving the control instruction and performing real-time feedback adjustment on the technological parameters of the laser system and the technological parameters of the magnetic field generation unit, the ultrasonic vibration unit and the powder conveying system according to the control instruction. And real-time and dynamic collaborative feedback regulation and control on a plurality of process units such as laser, a magnetic field, an ultrasonic field and powder feeding are realized.

The invention discloses a micro-scale tin soldering device and method for ultrasonic laser composite energy field coordinated regulation and control. The micro-scale tin soldering device comprises a coordinated energy output module, a multi-physical field monitoring module, a wire feeding module, an intelligent regulation and control system and a motion platform, and a workpiece to be welded is arranged on the motion platform; the collaborative energy output module comprises a laser unit, an ultrasonic vibration unit and a focusable focus lens, the ultrasonic vibration unit comprises an ultrasonic generator, and the multi-physical field monitoring module comprises an infrared thermometer, a high-speed holographic imaging system and an acoustic impedance sensor; the high-speed holographic imaging system is used for recording brazing filler metal molten pool flowing and IMC nucleation dynamic states; the acoustic impedance sensor monitors the ultrasonic energy transmission efficiency; the intelligent regulation and control system is electrically connected with the multi-physics field monitoring module, and a multi-physics field coupling prediction model based on an LSTM neural network is arranged in the intelligent regulation and control system. According to the technical scheme, the structural design is reasonable, the energy field coupling efficiency is high, the material adaptability is high, the structure performance is controllable, the defect rate is remarkably reduced, and practicability is good.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a preparation method of a graded ordered silicon-carbon negative electrode material for a lithium ion battery, which comprises the following steps: (S1) mixing phenolic resin and a template agent, calcining, and etching to obtain porous carbon containing macropores; (S2) carrying out cracking and carbon coating on the silicon source gas to obtain nano crystalline silicon containing a carbon coating layer; (S3) mixing the porous carbon with the nano crystalline silicon containing the carbon coating layer, and then carrying out ultrasonic vibration, so that macropores of the porous carbon are filled with the nano crystalline silicon to obtain a silicon-carbon composite material I; (S4) treating the silicon-carbon composite material I by using a carbon-containing sealing agent, and then activating to obtain a silicon-carbon composite material II; and (S5) carrying out vapor phase silicon deposition on the silicon-carbon composite material II to fill the amorphous silicon in the pores of the porous carbon, and then carrying out carbon coating to obtain the graded ordered silicon-carbon negative electrode material. The silicon-carbon negative electrode material prepared by the invention is of a composite structure in which crystalline silicon and amorphous silicon are spatially and orderly distributed, so that the structural stability and the uniform distribution of silicon are realized.

The invention provides a preparation method and application of a foamy copper reinforced aluminum-based composite material, and belongs to the technical field of aluminum-based composite material preparation. According to the foamy copper reinforced aluminum-based composite material, a variable-frequency and variable-power ultrasonic vibration assisted centrifugal casting technology is adopted, strong centrifugal force and the ultrasonic cavitation effect are utilized, so that the biological flowability of aluminum water is improved, the wettability between aluminum and copper is improved, and in combination with the effects of an auxiliary agent and Zn-Al or Sn-Al intermediate alloy, the foamy copper reinforced aluminum-based composite material is obtained. The problem that the binding force of foamy copper and an aluminum matrix is poor is solved, the adopted ultrasonic power is low (smaller than or equal to 1000 W), the preparation technology is simple, the obtained foamy copper reinforced aluminum matrix composite is free of obvious cracks and holes and high in density and thermal diffusion coefficient, and a light intelligent thermal management material can be provided for the field of electronic equipment.

The invention discloses a GIS ultrahigh frequency sensor ultrasonic cooperative detection system based on piezoelectric energization, and relates to the field of electric power detection, and the system comprises an excitation module which is used for transmitting a piezoelectric excitation signal with a specific frequency to a preset detection region in GIS equipment, so as to trigger the potential partial discharge acoustoelectric signal radiation of the region; the sensing module is used for receiving ultrahigh-frequency electromagnetic signals and ultrasonic vibration signals radiated by partial discharge in the GIS equipment; the excitation frequency, the filtering bandwidth and the sampling rate are dynamically optimized according to the detection result, the detection accuracy and efficiency are continuously improved, and reliable and effective guarantee is provided for safe operation and defect early warning of GIS equipment.

The invention belongs to the technical field of deep eutectic gel wave-absorbing materials, and particularly relates to a preparation method of sodium alginate modified deep eutectic gel with wave-absorbing and strain-sensing functions, which comprises the following steps: mixing sodium alginate with deionized water, mechanically stirring for the first time to form gel A, adding a certain amount of acrylamide, mechanically stirring for the second time to form gel B, and stirring for the second time to form gel B; adding a certain amount of deep eutectic solution, mechanically stirring for the third time, performing ultrasonic vibration, vacuumizing to form gel C, and finally performing ultraviolet curing treatment on the gel C to obtain sodium alginate modified deep eutectic gel; according to the preparation method, complex equipment is not needed, the preparation period is short, the sodium alginate modified deep eutectic gel is added into deep eutectic solutions with different contents, the real part and imaginary part of the dielectric constant of the material are accurately controlled, the characteristic impedance is close to the free space impedance, meanwhile, the ion conduction efficiency is guaranteed, and optimization of wave absorption and sensing is achieved.

Method for manufacturing an electrical storage device, comprising the following steps: Arranging a metal foil extending outwards from an electrode plate between a first metal element and a second metal element; and Causing an ultrasonic vibration to act on a plurality of points of action from the side of the first metal element in order to bond the metal foil to the first metal element and the second metal element, whereby the first metal element has a Vickers hardness of at least 40 Hv and not more than 75 Hv.

The invention discloses a comprehensive control method and system for the extrusion molding process of a PVC skinning and foaming sectional material, and relates to the technical field of plastic sectional material machining. The control method comprises the steps that real-time operation data of all links of the whole process of the PVC skinning and foaming sectional material are collected; a fusion type prediction model is built by using historical production operation data, and the fusion type prediction model combines two data processing modes. According to the comprehensive control method and system for the extrusion molding process of the PVC skinning and foaming profile, the parameter deviation trend is captured in advance by fusing the prediction model and the cooperative control technology, that is, when the environment temperature changes abnormally, the model can pre-judge the fluctuation direction of the decomposition rate of the foaming agent, and the decomposition rate of the foaming agent is determined. A regulation and control instruction is sent to the extruder and the ultrasonic vibration device in advance, the temperature and vibration parameters of the foaming area are synchronously and finely adjusted, and foam hole form abnormity is avoided; for different scene requirements, the dynamic quality evaluation system can flexibly allocate index weights, and it is ensured that each batch of profiles can be accurately matched with the requirements.

A water-guided laser assembly and a precision machining assembly are fixed to the same side of a sliding plate of a vertical five-axis machine tool, an ultrasonic vibration platform is installed on a C-axis workbench of the vertical five-axis machine tool, and the water-guided laser assembly, the ultrasonic vibration platform and the precision machining assembly are controlled by an industrial personal computer to cooperate with each other; a positioning measuring head is adopted to realize relative compensation of the water jet and the cutter; the water jet cooling effect is utilized in water-guided laser processing to reduce the heat affected area and improve the processing quality; ultrasonic vibration auxiliary machining effectively reduces cutting force, inhibits the surface water return phenomenon, improves machining efficiency and prolongs the service life of a cutter; and precise machining (milling, grinding and drilling) is carried out, so that the machining size precision is accurately corrected, and the residual laser-induced damage layer is removed. Through multi-energy-field in-situ combined machining, collaborative optimization of technological parameters and coordinate compensation, the problems of insufficient precision, low efficiency, thermal damage and the like during machining of complex geometrical shapes and difficult-to-machine materials in a single machining technology are solved.

The invention relates to a preparation method and application of a composite piezoelectric catalytic material NaNbO3-coated BiFeO3 for rapidly degrading antibiotics, NaNbO3 is flaky crystal grains with [001] crystallographic orientation prepared by a two-step molten salt method, and BiFeO3 is micro-nano particles prepared by a coprecipitation method. Composite micro-nano BiFeO3 powder and [001] oriented NaNbO3 flaky grains form a heterojunction, conversion of mechanical energy and electric energy of the material is achieved under the ultrasonic vibration condition, inductive charges are generated on the surface of the material, and photon-generated carriers move reversely under driving of a built-in electric field. According to the invention, the piezoelectric catalytic degradation capability of the BiFeO3 and NaNbO3 composite piezoelectric catalytic materials with different proportions on four antibiotics, namely oxytetracycline, levofloxacin, carbamazepine and paracetamol in different time periods is researched. When the mass ratio of the BiFeO3 to the NaNbO3 composite material is 1: 3, the oxytetracycline degradation rate within 30 min can reach 78.2%, the oxytetracycline degradation rate within 120 min can reach 91.8%, and the piezoelectric electro-catalysis characteristic is rapid and efficient. The method disclosed by the invention has important significance in developing a high-efficiency piezoelectric catalyst for degrading antibiotics.

The invention discloses a wafer cleaning device based on ultrasonic cleaning, and relates to the technical field of wafer cleaning devices. Comprising a cleaning machine outer tank body, a wafer cleaning glass tank, an ultrasonic cleaning tank, an ultrasonic device, a bottom plate, a housing, a cleaning tank rail, a flow dividing water supply device and a bubble removing uniform vibration device, ultrapure water serves as a medium, ultrasonic vibration is effectively conducted to the wafer cleaning glass tank, a strong acid solution in the tank is driven to uniformly vibrate, and efficient cleaning of wafers is achieved. High turbulence pulsation and local shearing stress are formed at the junction of oblique water replenishing and the stock solution, large bubbles are sheared into small bubbles, bubble gathering is prevented, and the liquid purity and the ultrasonic cleaning efficiency are improved. Under the centrifugal separation action of the rotational flow connecting base and the annular rotational flow piece, bubbles in water flow are concentrated in the center position, ultrapure water on the outer side is rapidly discharged, the bubbles are efficiently absorbed after making contact with the hydrophobic porous membrane, and the bubble removing effect is remarkably improved.

The invention relates to the technical field of propeller cleaning, in particular to an MR oil tanker propeller ultrasonic cleaning system which comprises a cleaning mechanism, a purifying mechanism is arranged on one side of the cleaning mechanism, a medicine feeding mechanism is arranged above the cleaning mechanism, and the medicine feeding mechanism is connected with the purifying mechanism. The cleaning mechanism comprises a cleaning pool, a first ultrasonic transducer used for emitting ultrasonic vibration from the bottom, a second ultrasonic transducer used for emitting ultrasonic vibration from the two sides, a waterproof hydraulic cylinder used for shaking a propeller, a connecting block, a moving seat and wheels. According to the scheme, the cleaning efficiency of dirt on the surface of the propeller is remarkably improved, the ultrasonic transducers distributed at the bottom and on the two sides can generate a high-frequency cavitation effect to cover all parts of the propeller, and the movable base driven by the waterproof hydraulic cylinder drives the propeller to reciprocate in the cleaning pool to be matched with wheels to reduce friction; dirt is stripped in an accelerated mode under the dual effects of mechanical shaking and the cavitation effect.

The invention provides a multi-energy-field auxiliary laser drilling method and device for a silicon carbide micropore with the large depth-diameter ratio, and relates to the technical field of hard and brittle material precision machining.The multi-energy-field auxiliary laser drilling method for the silicon carbide micropore with the large depth-diameter ratio comprises the following steps that a silicon carbide workpiece is ablated layer by layer through an ultrafast laser beam to form the micropore; and in the layer-by-layer ablation process, the workpiece or the ultrafast laser beam generates relative high-frequency micro-amplitude ultrasonic vibration in the axial direction of the micropore, and the low-temperature high-speed air flow is coaxially guided to an ablation point of the ultrafast laser beam so as to remove ablation products and cool the ablation point and the adjacent area of the ablation point. Through organic combination and synergistic effect of ultrafast laser ablation, ultrasonic vibration in the axial direction of a drill hole and coaxial low-temperature high-speed airflow, the problems that in the prior art, due to unsmooth chip removal of ablation products and the remarkable heat effect, the machining depth is limited, the hole wall quality is poor, and the machining efficiency is low are solved.

The invention relates to an ultrasonic vibration assisted large-width copper plate strip continuous extrusion short-process technology, and belongs to the technical field of metal processing. A copper raw material is subjected to mechanical cleaning and then ultrasonic cleaning, and the surface cleanliness of the raw material is guaranteed; the cleaned copper raw materials are fed into continuous extrusion equipment, and ultrasonic vibration is adopted for assisting continuous extrusion; after the extruded copper plate strip is cooled, spraying a suspension containing cerium (IV)-sodium dodecyl benzene sulfonate-pyrrolidone nano aluminum oxide additive on the surface of the copper plate strip, and drying; straightening by using a multi-roll straightening machine to obtain a large-width copper plate strip; the cerium (IV)-sodium dodecyl benzene sulfonate-pyrrolidone nanometer aluminum oxide auxiliary agent is prepared from nanometer aluminum oxide, DMF (Dimethyl Formamide), sodium dodecyl benzene sulfonate, N-vinyl pyrrolidone, ammonium persulfate and cerous sulfate (IV); the copper plate strip prepared by the invention has relatively high density, relatively high tensile strength and ductility, and the mechanical property of the copper plate strip is remarkably improved.

A workpiece clamp of the device drives a workpiece to rotate around the center line of the workpiece, a spinning wheel is installed on a tool rest in a free rotation mode, the tool rest is installed on a feed driving mechanism, and the feed driving mechanism is matched with rotation of the workpiece clamp so that the spinning wheel can be rolled to all positions of the side face of the workpiece. One end of the first amplitude-change pole is connected with the tool rest, the other end of the first amplitude-change pole is connected with the first transducer, an included angle is formed between the second amplitude-change pole and the extension direction of the first amplitude-change pole, one end of the second amplitude-change pole is connected with the tool rest, and the other end of the second amplitude-change pole is connected with the second transducer. Ultrasonic vibration is conducted in the direction perpendicular to and parallel to the center line of the workpiece; the method applies the device. By reasonably setting the ultrasonic phase and amplitude, the surface of the workpiece can be impacted in the vertical direction and the tangential direction of the surface of the workpiece, and the quality of the spinning workpiece is improved.

The invention relates to the field of solar cells, in particular to a manufacturing method and a manufacturing device of a photovoltaic module. The manufacturing method comprises the steps that a battery piece is provided, the battery piece comprises two first areas arranged in the first direction and a second area located between the two first areas, a plurality of bonding pads arranged in the second direction are arranged on the first areas, and passive films are arranged on the surfaces of the bonding pads; providing a vibration module, wherein a contact part is arranged on the surface of the vibration module; controlling the contact part to be in contact with the passive film and controlling the vibration module to vibrate so as to apply ultrasonic vibration to the passive film to remove the passive film; and after the passive film is removed, the bonding pad is welded, so that the manufacturing yield of the photovoltaic module is at least improved.

The invention discloses a magnesium alloy die casting punching device, which belongs to the technical field of punching and comprises a base, a punching seat is slidably connected onto the base, a driving mechanism is connected onto the punching seat, the driving mechanism drives the punching seat to move, an ultrasonic vibration generator is arranged on the punching seat, and a punching tool bit is fixedly connected onto the ultrasonic vibration generator. A blanking hole is formed in the base and located under the punching tool bit, after the magnesium alloy die casting is fixed to the base, the ultrasonic vibration generator transmits vibration to the punching tool bit, and the punching tool bit punches the magnesium alloy die casting. The punching tool bit is subjected to ultrasonic vibration, burrs generated in the punching process are effectively reduced, the appearance quality and the size precision of the magnesium alloy die casting are improved, effective breakage of the roots of the burrs can be achieved, the burrs are removed more thoroughly, the qualified rate of products is increased, an additional deburring technology is not needed, the production efficiency is improved, and the production cost is reduced. And meanwhile, the production cost is also reduced.

The utility model discloses an ultrasonic wire feeding additive manufacturing device which comprises a base plate, a tungsten electrode welding gun, a wire feeder and an ultrasonic vibration system. The tungsten electrode welding gun, the wire feeder and the ultrasonic vibration system are jointly connected with a positioning rod, and the positioning rod is movably arranged above the base plate. The ultrasonic vibration system is located on one side of the wire feeder and used for generating high-frequency vibration signals and transferring the generated high-frequency signals to a welding metal wire. According to the ultrasonic wire feeding additive manufacturing device, ultrasonic vibration is applied to the welding metal wire, so that a high-frequency vibration signal is transmitted into the molten pool through the welding metal wire, cavitation is generated in the molten pool, beta columnar crystals generated in the solidification process can be effectively broken, and the production efficiency is improved. And the anisotropy problem of the internal structure and the mechanical property in the wire feeding direction and the stacking direction is solved, that is, the performance of an additive manufacturing part is improved.

The invention discloses a GIL / GIS epoxy insulator residual stress suppression method and device based on sound field assisted post-curing, and the main steps are as follows: after the epoxy insulator is cured at a first stage, the curing degree is gt; and the temperature of the liquid medium in the container filled with the liquid medium and the ultrasonic vibration auxiliary curing time are regulated and controlled, and the post-curing process of the GIL / GIS epoxy insulating part is completed, so that the residual stress at the bonding position of the insulator epoxy and the metal is effectively inhibited, and the mechanical property of the epoxy resin insulator is remarkably improved. The mechanical performance of the epoxy insulating part in the gas insulated switchgear under the complex operation condition is improved.

The invention discloses a precise low-stress photovoltaic ultrasonic welding control method and system, and the method comprises the steps: evaluating the welding quality and damage risk between a welding strip and a battery piece based on a finite element model and the distribution of pressure applied to the welding strip by an ultrasonic vibration welding head, the pressure distribution with the evaluation result meeting the standard is selected as optimal pressure distribution; in the welding process, the actual temperature of a welding head and the actual molten pool form of a welding point are observed, and the actual temperature and the pressure applied to the welding head are correspondingly adjusted; and after welding is completed, if the detected multiple indexes all reach the standard, it is determined that welding is qualified. By the adoption of the technical scheme, distribution of pressure applied to the welding strip and the battery piece is evaluated in advance through the finite element model, proper pressure distribution is selected, and the damage risk is reduced while the welding quality is guaranteed; and the welding quality is improved based on observation and adjustment of the temperature and the molten pool form in the welding process.

The invention discloses an anti-fatigue strengthening special machine, relates to the technical field of fatigue strengthening, and aims to solve the problems of inconstant strengthening pressure, insufficient workpiece deformation inhibition and poor strengthening uniformity caused by incapability of tracking a normal direction in anti-fatigue strengthening of a complex contour sample. The ultrasonic rolling strengthening device comprises an ultrasonic rolling strengthening executing mechanism and an auxiliary supporting mechanism. The ultrasonic rolling strengthening executing mechanism comprises a first air cylinder, a pressure sensor used for detecting and feeding back axial acting force in real time is installed at the end of a piston rod of the first air cylinder, and the pressure sensor is fixedly connected with an ultrasonic rolling strengthening executor and used for receiving propulsive force provided by the first air cylinder and force signals fed back by the pressure sensor. Ultrasonic frequency electric vibration is converted into mechanical vibration, a rolling ball is installed at the output end of the ultrasonic rolling strengthening actuator, and the rolling ball is in strengthening contact with the surface layer of the workpiece under the combined action of constant normal pressure and ultrasonic vibration; the auxiliary supporting mechanism comprises a second air cylinder, and a rolling body is installed at the end of a piston rod.

The invention belongs to the technical field of metal-based composite material additive manufacturing, and particularly relates to ultrasonic-assisted green laser equipment for copper-based diamond cooling fin machining, which comprises a rack, a printing cabin, a green laser machining system, an ultrasonic-assisted system, a powder spreading system, a gas control system, an intelligent control system and an online monitoring system. By integrating a green laser processing system and an ultrasonic auxiliary system, an ultrasonic-green laser-powder multi-energy field coupling processing system is constructed, the wavelength of green laser is 532 nm, the absorption rate of copper is increased, and compared with traditional infrared laser, low-power and high-efficiency melting of copper can be achieved, the diamond graphitization risk is reduced from the angle of a heat source, and the production cost is reduced. Ultrasonic vibration is transmitted to a molten pool through a substrate coupling type structure, by means of the cavitation effect and the acoustic streaming effect, the interface wettability of copper and diamond is effectively improved, the interface bonding force is enhanced, the interface thermal resistance is reduced, meanwhile, grains are refined, pores are eliminated, residual stress is reduced, and the comprehensive performance of the cooling fin is remarkably improved.

The application discloses a wafer cleaning device based on ultrasonic cleaning and relates to the technical field of wafer cleaning devices. The wafer cleaning device comprises a cleaning machine outer tank body, a wafer cleaning glass tank, an ultrasonic cleaning tank, an ultrasonic device, a bottom plate, a cover, a cleaning tank track, a shunt water supply device and a bubble removing uniform vibration device. The application effectively conducts ultrasonic vibration to the wafer cleaning glass tank by taking ultrapure water as a medium, drives the strong acid solution in the tank to uniformly vibrate and realizes efficient cleaning of the wafer. The oblique water replenishment forms high turbulent pulsation and local shear stress at the junction with the original liquid, shears large bubbles into tiny bubbles, prevents bubble aggregation, improves liquid purity and ultrasonic cleaning efficiency. The centrifugal separation effect of the cyclone connecting seat and the annular cyclone sheet makes the bubbles in the water flow concentrate at the center position, the outer ultrapure water is quickly discharged, the bubbles are efficiently absorbed after contacting the hydrophobic porous membrane, and the bubble removing effect is significantly improved.