45 results about "Ultrasonic nozzle" patented technology

The utility model discloses an ultrasonic water gap separator which comprises an underframe, a positioning mechanism and an ultrasonic mechanism, the positioning mechanism comprises a positioning frame and four positioning cylinders; the positioning frame is arranged on the bottom frame; the four positioning cylinders are respectively arranged in four directions of the top of the positioning frame; positioning push plates are respectively arranged at the driving ends of the four positioning air cylinders; the ultrasonic mechanism comprises a top frame, a main lifting cylinder and an ultrasonic generator; the top frame is arranged on the bottom frame; the main lifting cylinder is arranged at the top of the top frame; the ultrasonic generator is arranged at the bottom of the driving end of the main lifting air cylinder and located on the top of the positioning frame. In the product machining process, it can be guaranteed that a product is always kept stable and does not shake, and the qualified rate of machined parts is guaranteed.

The invention discloses a spraying device for a perovskite solar cell and an operation method, and relates to the technical field of solar cells, the spraying device comprises a base, a conveying assembly, an environment control assembly and a spraying assembly, the environment control assembly comprises a box body, a gas inlet pipe, a gas transmission mechanism and a gas outlet pipe; the spraying assembly comprises a first linear driving piece, a second linear driving piece, a third linear driving piece, an ultrasonic spray head, a material pipe and a placing barrel. A closed space is provided for spraying through the box body, external environment interference is isolated, impurities are prevented from making contact with a to-be-sprayed substrate, air entering the box body is purified through the air conveying mechanism, so that the air pressure in the box body is kept stable, polluted air is exhausted, the oxidation and hydrolysis risks of perovskite materials are reduced, and the spraying efficiency is improved. And the photoelectric conversion efficiency and long-term stability of the cell are improved.

The utility model relates to a combined all-directional dust fall system which comprises a dust fall master station, a dust fall water inlet, an inlet water quality filter, a booster pump motor, a booster pump, a precision filter, an electromagnetic distribution valve, a pressure release valve, an electromagnetic water level gauge, a transmissible pressure gauge, a window water level gauge, a water drainage hole, a distribution device, a manual pressure regulating valve and a distribution pipeline, the dust fall spraying fog gun is composed of a spraying integration box, an ultrasonic sprayer, a fan, a protection cover, a fog gun water inlet pipe, a support and a control box. The electronic control system of the dust fall master station controls the spray heads of the fog guns, and spray particles can be smaller than or equal to 3 microns and are adjustable. According to the system disclosed by the utility model, a set of host can control a plurality of sets of dust fall spraying fog gun nozzles, and a plurality of dust suppression points can be arranged for control, so that full coverage of industrial dust raising treatment is realized.

The present application relates to a kind of catalytic layer with layered ionomer distribution and its preparation method and application.The catalytic layer is multilayer composite structure, which includes the ionomer solution layer and catalyst slurry layer formed by layer-by-layer alternately spraying on substrate;The ionomer in the ionomer solution layer is long side chain ionomer;The slurry of the catalyst slurry layer includes short side chain ionomer and Pt / C catalyst, wherein the mass ratio of short side chain ionomer and carbon carrier is 0.05-0.2.The preparation method includes the following steps: preparing ionomer solution and catalyst slurry respectively;Two independently controllable ultrasonic nozzles are set, and the ionomer solution layer and catalyst slurry layer are sprayed on heated substrate using two ultrasonic nozzles alternately, finally obtain the catalytic layer.Compared with prior art, the present application realizes the accurate layering and control of catalyst and ionomer by double-nozzle alternate spraying technology, optimizes the internal structure of catalytic layer, and improves the electrochemical performance of fuel cell.

The ultrasonic double-side cleaning device for wafer is characterized in that: the nozzle mounting plate of the cleaning mechanism is connected between the suction cover and the suction cavity; the driving member is connected to the suction cavity; the pneumatic slip ring passes through the center hole of the driving member; the tail of the ultrasonic nozzle is connected to the nozzle mounting plate; the head of the ultrasonic nozzle is located in the interior of the suction cover; the tail of the ultrasonic nozzle and the air inlet hole of the suction cavity are communicated through the hose; the air inlet hole of the suction cavity and the compressed air inlet of the pneumatic slip ring are communicated; the suction hole of the suction cavity and the negative pressure vacuum outlet of the pneumatic slip ring are communicated; the interior of the suction cover and the suction cavity are communicated through the through hole on the nozzle mounting plate; the ultrasonic nozzle cleans the surface of the wafer object in the wafer containing gap; the suction cover covers the surface of the wafer object in the wafer containing gap; the suction cover sucks the dust generated in the cleaning of the surface of the wafer object into the suction cavity. The application improves the cleaning range of the conventional dry ultrasonic nozzle and meets the cleaning precision requirement of the wafer.

The utility model relates to the field of ultrasonic nozzles, in particular to an ultrasonic coating nozzle which comprises a stainless steel outer box, an upper cover is fixedly connected to the top end of the stainless steel outer box, an annular ultrasonic transducer is movably connected to the top end of the stainless steel outer box, and a sound wave transducer shaft core is movably connected to the center position of the annular ultrasonic transducer. The outer side of the sound wave transducer shaft core penetrates through the center of the top end of the upper cover, a temperature monitoring hole and a wiring terminal mounting hole are formed in the top end of the upper cover, a conical titanium alloy nozzle is fixedly connected to the bottom end of the sound wave transducer shaft core, and the outer side of the conical titanium alloy nozzle penetrates through the interior of the stainless steel outer box; by means of the scheme, the problems that a common nozzle depends on the pressure of liquid and the size of a spraying hole, the size of liquid drops is usually difficult to control, the common nozzle is prone to being affected by the flow, the pressure and other factors, materials are prone to being blocked in a spraying head when paint is sprayed, and the spraying effect is poor are solved.

The invention discloses a wear-resistant and anti-corrosion bamboo-based coiled material, a preparation method thereof, and a carbonized coating preparation method. The preparation method of the wear-resistant and anti-corrosion bamboo-based coiled material is as follows: the bamboo material is cleaned and cut to obtain preliminary processing, and then processed by a bamboo flattening all-in-one machine and an oriented fiber matting machine to obtain bamboo fiber, the bamboo fiber is acid-treated, a 6%wt concentration of glacial acetic acid solution is added to the bamboo fiber, and the mixture is ball-milled to fully mix the mixture, and the bamboo-based coiled material is obtained by air-laying after wet gluing and hot pressing at a temperature of 150°C, a pressure of 8MPa, and a time of 60min. The carbonized coating solution is atomized into uniform droplets by an ultrasonic nozzle, sprayed on the surface of the bamboo-based coiled material, and formed into a bamboo-based coiled material with a carbonized coating after curing. The invention utilizes the modification of nanotubes and the polymerization of thermoplastic materials to manufacture a high-performance composite material, and sprays the composite material on the surface of the bamboo-based coiled material to enhance its wear resistance and corrosion resistance.

The invention discloses a down feather functionalization treatment device and method based on ultrasonic precise spraying, and the device comprises a down feather storage device, and also comprises an ultrasonic atomization system, a multi-stage flow guide device and an infrared monitoring module; the ultrasonic atomization system comprises an atomization cavity, an ultrasonic spray head, a liquid supply pipeline and a liquid supply bin; the multi-stage flow guide device comprises a cylindrical main body, a spiral flow guide plate and a negative pressure generator; the infrared monitoring module comprises an infrared transmitting probe, an infrared receiving probe, mounting brackets and a PLC (Programmable Logic Controller), the infrared transmitting probe and the infrared receiving probe are respectively mounted on two opposite sides of the atomization cavity through the mounting brackets, and the infrared transmitting probe and the infrared receiving probe are respectively in signal connection with the PLC. According to the down feather spraying device, the technical blank of an ultrasonic spraying technology in down feather treatment is made up, and down feather spraying reaches a more uniform state; down feather feeding and discharging and spraying operation are integrally and automatically completed, the spraying effect is guaranteed through intelligent control, and the production efficiency is improved.

The present invention discloses a square substrate coating uniformity control system based on an ultrasonic nozzle array, which relates to the field of automated control technology, including obtaining the layout of ultrasonic nozzles and the working parameters of ultrasonic spraying, and obtaining the spraying data of the ultrasonic nozzle during spraying through a sensor; the present invention conducts in-depth analysis on the acquired spraying data, clarifies the correlation between the spraying amount and the spraying area and the spraying thickness, generates a spraying uniformity influence coefficient, and constructs a coating control model based on historical data, which can accurately output predicted coating uniformity data, control the coating effect in advance, judge the compliance and generate the difference, and predict the gap between the actual demand. The system dynamically adjusts the working parameters according to the coating uniformity difference, and ensures that the adjustment instructions take effect in time through a real-time execution mechanism, thereby effectively improving the coating uniformity. The automated process reduces manual intervention, improves production efficiency, and reduces quality risks caused by human factors.

The invention discloses a device and a method for uniformly and chemically thinning flexible glass, and aims to solve the problems of non-uniform processing, low efficiency and low thickness control precision in chemical thinning of the flexible glass. The device comprises a box body, a lining plate which horizontally rotates in the box body (a raw glass sheet is fixed through a UV adhesive tape), ultrasonic nozzles which are arranged in an array, a laser thickness gauge module and a parameter feedback adjusting system. According to the method, the lining plate rotates to be matched with the ultrasonic nozzle to spray the atomized etching liquid, and the laser thickness gauge is combined for real-time monitoring and parameter feedback adjustment, so that the glass is uniformly thinned. According to the method, the thinning uniformity and efficiency are improved, the thickness control precision is enhanced, and the method is suitable for precise machining of ultra-thin flexible glass.

The utility model relates to the field of 3D printing, in particular to a powder ultrasonic selective separation 3D printing device. A powder ultrasonic selective separation 3D printing device comprises a rack, a printing platform is arranged on the rack, and a powder laying area and a printing area are arranged on the printing platform; a notch is formed in the rear side wall of a spray head of the ultrasonic spray nozzle, the ultrasonic spray nozzle is arranged above the printing platform and fixedly connected with the rack through a three-axis driving mechanism, and the three-axis driving mechanism drives the ultrasonic spray nozzle to move in the X-axis direction, the Y-axis direction and the Z-axis direction; the rotary driving mechanism is in transmission connection with the ultrasonic nozzle and is used for driving the ultrasonic nozzle to rotate; a powder spreading roller; and the driving mechanism is used for driving the powder spreading roller to move back and forth in the powder spreading area and the printing area. The 3D printing device has the advantages of being high in 3D printing efficiency, convenient to operate, simple in structure, high in practicability and the like.

The utility model provides an ultrasonic water gap cutting device. The ultrasonic water gap cutting device comprises a head cutting unit, a tool unit and an opening unit, wherein the head cutting unit is used for separating an injection molding product from a water gap; the tool unit is used for clamping and positioning the injection molding product; the tool unit comprises a bottom plate, a first carrying plate and a second carrying plate, the bottom plate is arranged on the working platform, the first carrying plate and the second carrying plate are located on the two sides of a discharging hole in the bottom plate respectively, a containing cavity used for clamping and positioning an injection product is jointly formed in the first carrying plate and the second carrying plate, and a through hole is formed in the position, corresponding to the water gap, of the containing cavity. And after the first carrier plate and the second carrier plate are oppositely opened and separated, the water gap falls into the through hole. According to the ultrasonic water gap cutting device, automatic discharging and waste discharging of the water gap can be completed before discharging of the injection molding product, the mechanical unit arranged beside the device only needs to suck and clamp the injection molding product, automatic feeding and discharging can also be completed for the injection molding product with the thin water gap, and manual assistance is not needed.

The utility model relates to the field of nozzles, in particular to a supersonic nozzle for underground coal gasification, which comprises a nozzle component and a slag scraping component movably connected onto the nozzle component. The nozzle assembly comprises a nozzle shell movably connected to the slag scraping assembly, a sealing groove formed in the outer surface of the nozzle shell, a second compression section, an expansion section, a narrow throat opening formed in one end of the expansion section and a nozzle outlet formed in the other end of the expansion section, wherein the second compression section and the expansion section are connected to the nozzle shell. The threaded pipe is connected to the nozzle shell, the first compression section is connected to the threaded pipe, and the expansion section is connected with the second compression section. The first compression section, the second compression section and the expansion section are of a double-section compression-expansion structure, so that the gas flow speed is further increased to supersonic speed after the throat reaches the sound speed, the mixing efficiency of a gasifying agent and a coal seam is improved, and the gas tightness in an underground high-pressure environment is ensured through threads on the threaded pipe and a sealing groove.

1. The name of the design product: ultrasonic nozzle vibration falling machine. 2. The use of the design product: used for nozzle vibration falling separation of products such as bead accessories. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

A high pressure die casting assembly includes a die component presenting a die surface, and a die spray system having at least one spray nozzle oriented towards the die surface. The at least one spray nozzle defines a respective orifice for receiving a liquid release agent composition. The at least one spray nozzle is an ultrasonic spray nozzle configured to introduce an ultrasonic vibration to the liquid release agent composition for generating and applying a fine mist of atomized release agent droplets to the die surface.

An apparatus, methods, and systems for forming microspheres comprises a furnace and an ultrasonic nozzle. The furnace has a channel and is operable to generate heat in the channel. The ultrasonic nozzle is configured to receive precursor solution and spray precursor droplets into the channel so that the heat in the channel causes the precursor droplets to form the microspheres.

The utility model discloses a novel ultrasonic water gap separator which comprises a working frame, an overturning supporting mechanism, a separating mechanism and a feeding mechanism. A supporting table is arranged on the working frame; the overturning supporting mechanism comprises two supporting air cylinders and two overturning supporting plates. The two supporting cylinders are arranged at the bottom of the working frame; the ends, away from each other, of the two overturning supporting plates are rotationally arranged on the supporting table, and the other ends are rotationally arranged at the telescopic ends of the two supporting air cylinders correspondingly. The separation mechanism comprises a lifting cylinder and an ultrasonic generator; the lifting cylinder is arranged at the top of the working frame; the ultrasonic generator is arranged at the bottom of the driving end of the lifting air cylinder and located above the two overturning supporting plates. The feeding mechanism comprises a feeding frame, a feeding motor and a feeding belt; the feeding frame is arranged at the bottom of the working frame; the feeding motor is arranged at one end of the feeding frame; the feeding belt is rotationally arranged on the feeding frame, and the feeding belt is in transmission connection with the driving end of the feeding motor; the feeding belt is located below the two overturning supporting plates.

The invention relates to the field of 3D printing, in particular to a powder ultrasonic selective separation 3D printing device and method. A powder ultrasonic selective separation 3D printing device comprises a rack, a printing platform is arranged on the rack, and a powder laying area and a printing area are arranged on the printing platform; a notch is formed in the rear side wall of a spray head of the ultrasonic spray nozzle, the ultrasonic spray nozzle is arranged above the printing platform and fixedly connected with the rack through a three-axis driving mechanism, and the three-axis driving mechanism drives the ultrasonic spray nozzle to move in the X-axis direction, the Y-axis direction and the Z-axis direction; the rotary driving mechanism is in transmission connection with the ultrasonic nozzle and is used for driving the ultrasonic nozzle to rotate; a powder spreading roller; and the driving mechanism is used for driving the powder spreading roller to move back and forth in the powder spreading area and the printing area. The 3D printing device has the advantages of being high in 3D printing efficiency, convenient to operate, simple in structure, high in practicability and the like.

The invention discloses large-area perovskite battery film multi-nozzle ultrasonic spraying equipment and method.The large-area perovskite battery film multi-nozzle ultrasonic spraying equipment comprises an equipment body, a spraying base table, a vacuum adsorption platform, a transmission mechanism and a spraying mechanism, the spraying mechanism comprises a portal frame, a mounting plate and ultrasonic nozzles, and inclined opposite blowing openings are further formed in the two sides of mist outlets in the bottoms of the ultrasonic nozzles; the inclined opposite blowing openings in the two sides face inwards and obliquely downwards, and the cross section of each blowing opening is a strip-shaped long opening. A transmission mechanism, a spraying mechanism and the like are integrally and precisely matched with an optimization system, a base fixing frame capable of being conveniently and automatically placed and taken is matched with vacuum adsorption to achieve overall convenient placement and stable positioning, then ultrasonic spray heads distributed in an array mode are combined, the vibration adaptability in the spraying process is high, and large-area uniform spraying is achieved; the nozzle support, the liquid supply system and the control unit are combined in a modularized mode, the equipment width and the nozzle number can be flexibly adjusted according to the sizes of different assemblies, and requirements of different stages from pilot plant test to industrial production are met.

The utility model relates to the field of atomizing nozzle equipment, in particular to a formaldehyde removal solution atomizing nozzle which comprises a high-pressure set, and an ultrasonic spray head set is fixedly installed at the upper end of the high-pressure set and communicated with an external air inlet pipe. During use, solution is shunted through the auxiliary cavities and the main cavity, the auxiliary cavities converge at the lower end of the inner pressure nozzle and are mixed and converged with gas from the gas ring cavity, waterline high pressure of the solution ejected from the auxiliary cavities is reduced, meanwhile, the high-pressure solution in the main cavity is easily in direct contact with a pressure-bearing steel ball, and the pressure-bearing steel ball is prevented from being damaged. As the pressure-bearing steel ball and the ball rotate in the arc-shaped groove in a limited manner, the solution flows out from a gap between the pressure-bearing steel ball and the inner wall of the arc-shaped groove, and the water pressure is reduced.

The invention relates to a method for decontaminating (4') a controlled environment (1) by means of a stabilizer-free decontaminant (4), wherein the decontaminant (4) is produced in a direct vicinity (9) of the controlled environment (1) and / or immediately after being produced is fed into the controlled environment (1), in particular via an interface (3) designed in the form of an ultrasonic nozzle (15).

The utility model discloses a soil body screening and moisture content adjusting device which comprises a stainless steel box body, a vibrating screen, a crushing device, a stirring device, an ultrasonic spray head, a camera, a moisture content sensor, a water tank, a computer and a screening area partition plate. A vibrating screen is arranged in the middle in the stainless steel box, a screening space is arranged above the vibrating screen, a feeding port is formed in a top plate of the stainless steel box, and a screening area partition plate is arranged on the side face of the screening space. A crushing device is arranged above the vibrating screen; a stirring device is arranged at the lower part of the stainless steel box; an ultrasonic spray head and a camera are arranged above the stirring device, and the ultrasonic spray head is connected with the water tank; a water content sensor is arranged at the bottom in the stainless steel box body; the vibrating screen, the crushing device, the stirring device, the moisture content sensor, the ultrasonic spray head and the camera are all connected with the computer. According to the utility model, the functions of soil body crushing and moisture content blending are integrally completed, the moisture content uniformity is ensured, and the device is convenient, rapid and low in cost.

The present invention provides a particle manufacturing device and a manufacturing method for frozen particles capable of quickly manufacturing frozen particles while preventing clogging of a nozzle due to freezing. The present invention provides a particle manufacturing device including: a freezing chamber in which frozen particles obtained by freezing an object to be treated containing moisture in a particulate form are accommodated; an ultrasonic nozzle configured to discharge the object to be treated after or before being frozen in a particulate form into the freezing chamber; and a decompression device configured to decompress the freezing chamber, in which the moisture is evaporated due to decompression, and the frozen particles are cooled and frozen by the evaporation of the moisture.

The utility model relates to the technical field of feeding and discharging equipment, and discloses a feeding and discharging mechanism for an injection molding product ultrasonic water gap separator, which comprises a base, an L-shaped supporting column, a separator, a fixing plate, a box body and a sliding chute are arranged on the base, a motor I is fixedly arranged at the top end of the L-shaped supporting column, and the output end of the motor I is fixedly connected with a rotating shaft. A first connecting rod is hinged to the rotating shaft, a second connecting rod is hinged to the first connecting rod, a sliding plate is hinged to the second connecting rod, a second groove is formed in the sliding plate, a third groove and a first groove are formed in the fixing plate, and the sliding plate is connected into the third groove in a sliding mode. According to the feeding and discharging mechanism, through the common regular effect of all the mechanisms and the arrangement of the corresponding matching mechanisms, the purpose that the feeding and discharging mechanism rapidly and accurately discharges materials can be effectively achieved.

The invention discloses an on-line intelligent monitoring system and method for mass concentration and oxidation potential of harmful particulate matters. The system is characterized in that a particulate matter sampling subsystem comprises a particle size separator, a vacuum pump, a mixing pipeline and an HEPA (High Efficiency Particulate Air) filter; the particulate matter mass concentration detection subsystem comprises an optical detection chamber, a laser, a light trap, a collimating lens, a focusing lens and a photodiode; the particulate matter atomization trapping subsystem comprises an atomization trapping chamber, a buffer trapping liquid chamber and an ultrasonic nozzle atomizer; the particulate matter oxidation potential detection subsystem comprises a first stirring device, a PH sensor, a DTT chamber, a PH buffer solution chamber, a second stirring device, a first liquid pump, a DTNB chamber, an optical fiber probe and a light absorption luminoscope. According to the method, accurate sampling, particulate matter concentration measurement and quantitative detection operation of the oxidation potential are achieved through the system. According to the system and the method, the concentration of atmospheric particulates can be detected in real time by utilizing a light scattering technology, and quantitative detection of oxygen potential can be realized.

The invention relates to a glue spraying device and a glue spraying method, and belongs to the technical field of semiconductor manufacturing and micro-nano machining, and the glue spraying device comprises a slide holder which is used for bearing a wafer to be sprayed with glue; the glue spraying assembly comprises an ultrasonic spray head, and the ultrasonic spray head is arranged above the slide holder and is configured to spray a glue solution towards the slide holder to form an atomized liquid flow; the cover body is provided with a first opening and a second opening which are communicated; the cover body is arranged on the periphery of a nozzle of the ultrasonic spray head in a sleeving manner, and the first opening faces the slide holder so as to allow atomized liquid flow sprayed by the ultrasonic spray head to pass through; the exhaust assembly is communicated with the second opening of the cover body; and the air exhaust assembly exhausts air in the inner space of the cover body through the second opening, so that directional airflow guided to the second opening is formed on the periphery of the atomized liquid flow. According to the invention, wafer glue spraying black spots can be reduced or eliminated.

The ultrasonic water gap vibration falling mechanism comprises a base, a bearing platform and an ultrasonic generator are fixedly connected to the upper portion of the base, the ultrasonic generator is fixedly connected with a vibration plate, the bearing platform is located below the vibration plate, a supporting plate is fixedly connected to the bearing platform, a vertical inserting hole is formed in the supporting plate, and guide grooves are formed in the two sides of the supporting plate. The two side walls of the material guide groove are different in height, the lower side wall of the material guide groove is close to the supporting plate, the position, close to the upper edge, of the side wall is hinged to the upper edge of the supporting plate, the bottom of the material guide groove makes contact with the side edge of the surface of the bearing platform, and therefore the material guide groove is inclined, and the higher side wall of the material guide groove is far away from the supporting plate. And the upper edge of the side wall is higher than the upper edge of the supporting plate. Plastic workpieces which are shaken off and fly up are blocked through the side wall of the material guide groove, so that the plastic workpieces fall into the material guide groove and then slide out of the material guide groove to be stacked together, and the situation that the workpieces fly everywhere and are troublesome to collect is avoided.

This utility model discloses a nano-coating atomization device for automotive headlight coating, comprising a material tank, a liquid pump, and a double-layer cylinder. The upper surface of the material tank is provided with an ultrasonic disperser, a pressure relief pipe, and an air inlet. The liquid pump is installed on the side of the material tank and communicates with it. The outlet of the liquid pump is connected to an ultrasonic nozzle. The double-layer cylinder is screwed to the ultrasonic nozzle. The lower surface of the double-layer cylinder is provided with several trapezoidal spray holes arranged in a ring. After the liquid pump draws the material, it is sent to the ultrasonic nozzle, which atomizes and sprays the material. The air inlet provides compressed air to the double-layer cylinder. The compressed air is sprayed out from the trapezoidal spray holes to form an annular air curtain. The airflow carries the material to the surface of the headlight, reducing material dispersion and improving the efficiency of headlight coating.

A substrate processing apparatus with improved cleaning efficiency is provided. The substrate processing apparatus includes: a support member configured to support a substrate; a chemical solution supplier configured to supply chemical solution to the substrate; a sonic oscillator including an ultrasonic nozzle; a home port provided on one side of the support member and configured to accommodate the ultrasonic nozzle in a standby state; and a controller configured to control the support member, the chemical solution supplier, the sonic oscillator, and the home port, wherein the controller controls the ultrasonic nozzle to vibrate the chemical solution applied on the substrate during a cleaning period, and controls the ultrasonic nozzle to vibrate in the home port during a standby period to remove particles adhering to the ultrasonic nozzle.

Systems, devices, and methods employ advantages of ultrasonic vibration in the field of electrospinning. Fibers are produced from an ultrasonic nozzle exposed to an electric field established between the nozzle and a target object. Exemplary embodiments include electrospinning techniques that produce fine and ultrafine fibers in a high throughput via multiple jetting of spun solutions and melts. Ultrasonic vibration, in some instances combined with heating, reduces the voltage required for spinning. Vibrating power delivered to the nozzle may be selected so gas bubbles are generated by solvent cavitation in the spun solution. The bubbles are generated at the nozzle exit or else in such positions of the solution path so as to reach the nozzle exit where they further enhance multiple jetting of spun solutions.