188 results about "Ultrasonic oscillation" patented technology

The invention relates to the technical field of alloy processing, and discloses a high-performance corrosion-resistant nickel-based alloy plate and a preparation method thereof, and the method comprises the following steps: raw material preparation, smelting treatment, casting treatment, hot rolling treatment, solution treatment, aging treatment and surface passivation treatment. According to the invention, when a composite acid system is adopted for passivation treatment, the concentration of chromium / molybdenum atoms in a passivation film is optimized and balanced due to the specific ratio of nitric acid to chromic acid, a chromium oxide provides a compact passivation barrier, and a molybdenum oxide endows the film layer with a self-repairing characteristic to synergistically inhibit pitting nucleation; meanwhile, nano titanium dioxide particles pretreated by silane are embedded into the passivation film in situ under the action of ultrasonic oscillation, organic pollutants adsorbed on a film layer can be decomposed by the photocatalytic characteristic of the nano titanium dioxide particles, the local corrosion effect of a battery caused by dirt coverage is avoided, and the performance of the battery is improved through double upgrading of components and the structure of the passivation film. And the alloy plate has excellent pitting corrosion resistance and fouling resistance in a chloride ion-containing medium.

The invention discloses a preparation method of a porous copper foil based on a hydrogel template and the porous copper fores.The method comprises the steps that firstly, a hydrogel solution is applied to the surface of a cathode roller in a spraying mode, and a hydrogel shielding point array is formed by means of the self-polymerization characteristic of the hydrogel solution; secondly, performing electrolysis operation by taking a cathode roller area outside the shielding point as a deposition site to prepare a composite copper foil mingled with the hydrogel shielding point; and then, stripping the composite copper foil from the cathode roller, placing the composite copper foil in an alkaline solution for ultrasonic treatment for 0.5-5 minutes, so that the hydrogel shielding point is swelled and then falls off through ultrasonic oscillation, and a pure porous copper foil is obtained. And finally, performing surface treatment on the porous copper foil by adopting a passivation solution to improve the stability of the porous copper foil. According to the method, accurate regulation and control of the porous structure are achieved through the hydrogel template, the preparation process is green and efficient, and the obtained porous copper foil is uniform in pore distribution, large in specific surface area and good in mechanical property.

The invention relates to the technical field of bioengineering, in particular to an exosome separation and concentration method with marine animal source tissue as a raw material. Comprising the following steps: freeze-drying and crushing a marine animal source tissue sample; performing sample enzymolysis; and removing impurities and concentrating. According to the method disclosed by the invention, the exosome in the cells is fully dissociated through freeze-dried powder crushing and composite enzymolysis processes, and the filtering speed of the sample is accelerated by virtue of ultrasonic oscillation, so that the rapid and high-purity separation and concentration of the exosome in the marine animal source tissue are realized.

The utility model discloses a humidification type ceramic artware which comprises a base and a ceramic tank body, a liquid storage tank is clamped in the base, an ultrasonic oscillation rod is fixedly connected to the inner wall of the bottom of the liquid storage tank, an air outlet pipe is fixedly connected to the top end of the liquid storage tank, an air inlet hole is formed in one side of the air outlet pipe, and an air outlet hole is formed in the other side of the air outlet pipe. An ultraviolet lamp tube is fixedly connected to the circumferential inner wall of the air outlet pipe, a fan is fixedly connected between the circumferential inner walls of the air outlet pipe, a sealing cover is fixedly connected to the top end of the air outlet pipe, a limiting ring is fixedly connected to the top of the sealing cover, and a plurality of first air outlet holes and a plurality of second air outlet holes are formed in the top of the sealing cover; and the ceramic tank body is placed on the outer wall of the top of the base. The ceramic pot body is screwed to drive the mounting plate to rotate, so that the blocking block is driven to rotate, the size of the first air outlet hole or the second air outlet hole blocked by the blocking block is adjusted, the air outlet size is adjusted, and the applicability of the ceramic artware is improved.

The invention relates to continuous and efficient plant fiber yarn processing equipment and an automatic control method. The method comprises the following steps: setting parameters; constant tension establishment: the PLC realizes constant tension conveying based on tension feedback and speed feedforward; pre-infiltration is carried out; performing total immersion modification: running the yarns in a modification tank along a Z-shaped path, and starting ultrasonic oscillation at the same time; performing infrared preheating; washing and liquid squeezing: guiding the yarns into a washing unit to remove residual modified liquid, and then performing secondary liquid squeezing by a liquid squeezing unit to stabilize the moisture content; partitioned drying: performing roller surface contact heating and forced air drying; the tension and the temperature are monitored on line, and when the tension or the temperature exceeds the limit, a PLC conducts automatic linkage correction; cooling and rolling; and linkage control: performing master-slave or synchronous control with downstream pultrusion equipment according to the speed / tension signal. Compared with the prior art, the device has the advantages of realizing efficient and continuous automatic production, improving the efficiency, improving the modification uniformity and penetration depth, improving the product performance and the like.

This utility model relates to the field of solid-liquid separation technology, specifically an integrated solid-liquid separation device for kaolinite suspension, comprising a vertical flow sedimentation tank, a central feed pipe, a flow guiding component, and a drive component. The vertical flow sedimentation tank has a drain outlet at the bottom and an overflow weir at the top. A water collection tank is located outside the overflow weir, and water outlets are located on both sides of the water collection tank. The central feed pipe is located at the upper center of the vertical flow sedimentation tank and is connected to a water inlet pipe on one side. The flow guiding component includes a mounting base fixed inside the vertical flow sedimentation tank, and a flow guiding plate is fixed to the outer wall of the mounting base. The flow guiding plate is set at an inclined angle and has serrated protrusions on its surface. Multiple sets of ultrasonic oscillators are evenly spaced on the inner wall of the vertical flow sedimentation tank, which can realize the flow guiding control of the suspension, facilitate the extension of the material's residence time in the tank, increase the probability of particle sedimentation, and at the same time, promote particle collision and accelerate the agglomeration of kaolinite particles.

The application discloses an ultrasonic decontamination tank and ultrasonic decontamination device for radioactive environment, which comprises an ultrasonic decontamination tank shell, an ultrasonic decontamination tank top cover, a cooling mechanism, an ultrasonic oscillation mechanism and a gas removal mechanism. The ultrasonic decontamination tank top cover is rotationally connected with the ultrasonic decontamination tank shell, and is used for opening and closing the ultrasonic decontamination tank shell by rotating to a preset position. The cooling mechanism, the ultrasonic oscillation mechanism and the gas removal mechanism are arranged in the ultrasonic decontamination tank shell respectively. The ultrasonic oscillation mechanism is used for cleaning through ultrasonic oscillation, and the gas removal mechanism is used for removing the gas accumulated at the bottom of a decontamination container. The ultrasonic decontamination tank and the ultrasonic decontamination device for radioactive environment have good decontamination and cleaning effect on aerosol on the surface of a product container, control the spread of pollution, greatly reduce the pollution to subsequent related equipment and reduce the waste amount.

The invention relates to the technical field of a plasma spraying process of a high-corrosion-resistance yttrium oxide coating and a gradient structure design method, and particularly discloses the plasma spraying process of the high-corrosion-resistance yttrium oxide coating and the gradient structure design method. The invention aims to solve the problems that a traditional plasma spraying yttrium oxide coating is high in porosity, non-uniform in microstructure, easy to crack and peel off due to mismatch of a thermal expansion coefficient and a metal matrix, and difficult to consider compactness, stress buffering and long-term stability at the same time. The method comprises the following steps: carrying out degreasing cleaning, sand blasting coarsening, ultrasonic oscillation and drying pretreatment on a substrate, carrying out high-corrosion-resistance yttrium oxide composite powder spraying by adopting plasma spraying parameters optimized by an orthogonal test, and arranging multiple layers of intermediate layers with components and thermal expansion coefficients in gradient transition between the substrate and a coating, follow-up heat treatment and nano sol hole sealing treatment are assisted. By adopting the technical scheme, low porosity, high bonding strength, excellent thermal mechanical stability and long-term corrosion resistance in a strong corrosion environment of the coating can be realized.

This application discloses a slurry for a flexible pressure sensor, its preparation method, and the sensor and its preparation method. The preparation method of the flexible pressure sensor slurry includes the following steps: In a first solvent, a conductive filler is ultrasonically dispersed. The conductive filler includes: (1) graphene oxide, or (2) the graphene oxide and multi-walled carbon nanotubes, wherein the mass ratio of the multi-walled carbon nanotubes to the graphene oxide is (0-3):(1-2). After the reaction, under ultrasonic oscillation, the remaining amine substances are removed using anhydrous ethanol, centrifuged, and pressure-sensitive powder is prepared. A binder, a curing agent, and the pressure-sensitive powder are mixed and ultrasonically dispersed in a second solvent to obtain a uniform slurry. The first solvent is ethylenediamine, hexamethylenediamine, or decanediamine. This application makes technical improvements to the slurry preparation and integration scheme for flexible pressure sensors based on carbon nanotubes.

A bonding apparatus includes an ultrasonic oscillator which generates ultrasonic vibration, a stage disposed under the ultrasonic oscillator, and an embossed sheet disposed between the ultrasonic oscillator and the stage. The embossed sheet includes a body and a plurality of protrusions protruding downward from a lower surface of the body which faces the stage.

The invention discloses a preparation method of an iron ore concentrate powder scanning electron microscope sample, and belongs to the field of material analysis and testing. The preparation method comprises the following steps: (1) adding iron ore concentrate powder to be detected into absolute ethyl alcohol, and fully and uniformly shaking to obtain a sample solution; (2) adding a dispersing agent into the sample solution, and uniformly oscillating by using an ultrasonic method to obtain a solution after ultrasonic oscillation; and (3) pouring the solution subjected to ultrasonic oscillation into a sprayer, uniformly spraying the solution to the surface of a conductive adhesive tape fixed on an objective table of a scanning electron microscope through the sprayer, and naturally drying to obtain the iron ore concentrate powder scanning electron microscope sample. The method is simple in sample preparation process, uniform in iron ore concentrate particle dispersion and easy to operate, the problem of iron ore concentrate powder agglomeration is solved, meanwhile, a scanning electron microscope sample chamber is not polluted, and the observation result is real and reliable.

This utility model discloses a desalination device for bamboo shoot canning, including a desalination tank. Vertical plates are welded to the side walls of the desalination tank, and guide platforms are welded to the surface of the vertical plates. Beneficial effects: By activating the servo motor inside the drive housing, the gear at the output end of the servo motor rotates. Since the gear meshes with the rack of the guide platform, and the turnover box is fixedly connected to the drive housing, and the turnover box is slidably connected to two sliding rods inside the desalination tank, as the drive housing moves along the length of the guide platform, the drive housing drives the turnover box to pass sequentially through several water tanks opened from left to right within the desalination tank. During this process, by activating the extension and retraction of the electric cylinder inside the turnover box, the lifting block at the bottom of the electric cylinder drives the basket to rise and fall, allowing the basket to flexibly switch between being above the water tank and submerged inside the water tank. Combined with the ultrasonic vibrating plates installed in the corresponding water tanks, it has the advantages of multi-stage ultrasonic oscillation desalination and flexible turnover.

A hydrogen evolution electrode preparation method based on a three-period minimal curved surface structure belongs to the technical field of new energy electrolytic hydrogen production and fluid transportation, and comprises the following steps: constructing a three-dimensional model of the required three-period minimal curved surface structure; performing image slicing processing on the three-dimensional model by using slicing software; printing a required three-period minimal curved surface structure by using a plane projection micro-stereolithography 3D printer; a nanometer ultraviolet lamp is adopted to circularly irradiate the three-period extremely-small curved surface structure; soaking in a sulfuric acid solution and carrying out ultrasonic oscillation; carrying out vacuum drying and carrying out oxygen plasma hydrophilic treatment; depositing a nickel-based compact conductive layer on the three-period minimal curved surface structure by using chemical deposition; depositing a nickel-iron alloy catalyst on the three-period minimal curved surface structure of the nickel substrate by using electro-deposition; and carrying out ultrasonic oscillation with ethanol and vacuum drying. According to the application, collaborative design of catalyst distribution and a macro-microstructure is realized, and a new way is provided for preparation of a high-performance water electrolysis hydrogen production electrode.

The present application relates to gas hydrate formation and carbon dioxide capture and storage technology field, specifically relates to a kind of hydrate formation accelerant and its preparation method and application, the hydrate formation accelerant is composed of water and L-methionine modified multi-walled carbon nanotube dispersed in water, by washing and drying after acid treatment multi-walled carbon nanotube, add L-methionine, sufficient ultrasonic oscillation, room temperature is fully stirred and adsorbed, again purification and drying, obtain L-methionine modified multi-walled carbon nanotube, again it is dispersed in water, and is configured into.In the application of carbon dioxide hydrate synthesis, using the hydrate formation accelerant, improve hydrate gas consumption while significantly improving hydrate initial formation rate, significantly shorten the overall time of hydrate formation, realize the efficient capture and storage of carbon dioxide, provide broad prospects for the practical application of hydrate technology capture, store carbon dioxide.

The invention discloses an iron-based nanocrystalline soft magnetic composite material with high saturation flux density, high frequency and low loss. The iron-based nanocrystalline soft magnetic composite material has the chemical composition of FeaCobSicBdPeCufNbg, wherein 72 < = a < = 75, 0 < = b < = 3, 0 < = c < = 9, 0 < = d < = 10, 0 < = e < = 4, 0.5 < = f < = 0.7, 1 < = g < = 1.5, and a + b + c + d + e + f + g = 100. The invention further discloses a preparation method of the iron-based nanocrystalline soft magnetic composite material. The preparation method comprises the following steps that (1) iron-based amorphous alloy powder with the target particle size is obtained based on alloy smelting and atomization powder making; (2) adding the iron-based amorphous alloy powder into an organic solvent containing organic resin, and forming an organic resin coating layer outside the iron-based amorphous alloy powder under continuous ultrasonic oscillation; after coating, drying the powder, and carrying out cold press molding to obtain a green body; and (3) carrying out transverse magnetic field heat treatment on the green body at high temperature to obtain the iron-based nanocrystalline soft magnetic composite material.

The invention provides a carbon nanotube cold cathode, a preparation method thereof and an X-ray tube, and the preparation method of the carbon nanotube cold cathode comprises the following steps: carrying out ball milling on an agglomerated carbon nanotube to obtain carbon nanotube powder; mixing the carbon nanotube powder with a first solvent and an electrolyte solution, and performing ultrasonic oscillation to obtain a suspension; a metal substrate is placed in the suspension liquid for electrophoretic deposition, and the carbon nano tube thin film cold cathode is obtained; coating a curing agent on the carbon nano tube thin film cold cathode for cross-linking curing to obtain a cured carbon nano tube cold cathode; and enabling the carbon nano tube in the carbon nano tube cold cathode in the curing state to form a tip by utilizing a high-energy ion beam, and enabling the carbon nano tube to form an upright state by utilizing a high-strength electric field to obtain the carbon nano tube cold cathode in an activated state.

The application belongs to the technical field of medical biomaterials, and particularly relates to an interpenetrating network polymer based on phosphorylcholine polymer and a preparation method and application thereof. The application provides a sequential interpenetrating network method, which comprises the following steps: preparing a monomer infiltration solution containing phosphorylcholine monomer, polyethylene glycol methacrylate, dimethylaminoethyl methacrylate, butyl methacrylate, hydroxyethyl methacrylate, ethylene glycol methacrylate, a crosslinking agent and an initiator; dipping a high-molecular polymer matrix into the monomer infiltration solution, and performing ultrasonic oscillation treatment to promote the infiltration of monomers into the interior of the matrix; and performing a polymerization reaction to obtain a final product after washing; the material prepared by the application has excellent thermal stability, excellent swelling performance, intelligent pH response drug release capacity and biocompatibility, and is suitable for the fields of biological medicine and cosmetics.

The application relates to the technical field of resource utilization of construction waste, and discloses a construction waste and waste cement block xylene impurity removal process. In the process, waste cement blocks and waste concrete blocks in the construction waste are subjected to sorting, crushing and screening to obtain recycled aggregates, the aggregates are subjected to pre-washing with clean water to remove loose impurities, and then are subjected to xylene treatment liquid soaking under specific solid-liquid ratio and temperature conditions, and are subjected to ultrasonic oscillation or mechanical stirring to strengthen mass transfer; after treatment, the aggregates are subjected to solid-liquid separation, distillation and purification, and then are recycled, and the aggregates are subjected to washing and drying to obtain high-quality recycled aggregates. The application has excellent impurity removal effect, does not damage the original structure of the aggregates, can realize recycling of the solvent, does not cause pollution of acidic waste water, has strong process adaptability, and can significantly reduce the water absorption rate and crushing index of the treated recycled aggregates, so that the treated recycled aggregates can meet the preparation requirements of medium and high-grade concrete, and the application realizes high-value and green resource utilization of the construction waste.

The present application relates to a kind of preparation method of nitrogen-oxygen co-doped nanoporous carbon material and its application, with the following steps: resorcinol, polyaspartic acid potassium, polyvinyl alcohol, 4-dimethylaminopyridine are dissolved in distilled water stirring 10~60 minutes, then add sepiolite powder, ultrasonic oscillation at room temperature 30~60 minutes, finally add formaldehyde aqueous solution, seal, continue ultrasonic oscillation 1~3 hours, obtain gel product;The gel product obtained is dried to obtain intermediate;The intermediate obtained is carbonized to obtain black product;The black product obtained is pickled and washed with water, dried to obtain nitrogen-oxygen co-doped nanoporous carbon material.The porous carbon material obtained by the present application has large specific surface area and strong adsorption capacity, and the preparation method has high reaction yield.

The invention relates to the technical field of pollution treatment equipment, and discloses a syphilis patient plasma pollutant treatment device which comprises a bottom plate, and a mounting frame is fixedly connected to the middle of the top end of the bottom plate; the electromagnetic separation mechanism is arranged in the middle of the top end of the mounting frame and used for separating plasma pollutants of the syphilis patient in an electromagnetic treatment mode; and the regeneration and recovery mechanism is arranged on one side of the top of the mounting frame. By adding and arranging the regeneration and recovery mechanism, when plasma pollutants of syphilis patients are treated, the mechanism can thoroughly recover magnetic nanoparticles in a quartz separation column through flexible switching of conveying of eluent and regeneration liquid through a first three-way solenoid valve, precise liquid supply through combination of a first conveying pump and auxiliary elution through cooperation of an ultrasonic oscillator; and the compound and the particles can be separated through centrifugal treatment of the centrifugal cylinder, the regeneration liquid can enable the particles to be renatured and restore activity, and reutilization is achieved.

Circuit board chemical copper plating equipment with ultrasonic oscillation comprises an electroplating bath, an ultrasonic oscillation device and a processing device, the ultrasonic oscillation device and the processing device are arranged in the electroplating bath, mounting seats are arranged on two opposite side surfaces of the electroplating bath, a connecting rod is arranged between the two mounting seats, and the ultrasonic oscillation device is arranged on the connecting rod and moves along the connecting rod; the ultrasonic vibration device comprises an ultrasonic vibration rod, and the outer surface of the ultrasonic vibration rod is provided with a convex ring and a groove; an ultrasonic transducer is arranged on the bottom surface of the external treatment device, a flow guide part is arranged at the top of the external treatment device, the flow guide part is gradually reduced from bottom to top, an exhaust port is formed in the top of the flow guide part, a vacuum pump is arranged on the outer side of the exhaust port, an air outlet hole is formed in the upper portion of the outer side of the vacuum pump, and a backflow pipe is arranged on the side face of the vacuum pump; and the bottom end of the return pipe is connected to the treatment tank. Through the arrangement of the movable ultrasonic vibration device and the processing device, the electroplating quality is improved, the practicability is high, and the electroplating device has high popularization significance.

Disclosed herein are an acoustic output device, including: a housing; a driving unit, the driving unit being accommodated in the housing, the driving unit vibrating to generate sound and outputting the sound through a sound outlet hole provided on the housing; a draining member provided at the sound outlet hole; and an ultrasound transmitting module configured to output an ultrasound excitation signal. The draining member includes an oscillation unit and a plurality of holes. The plurality of holes include a plurality of sound passage holes that allow sound transmission. And the oscillation unit is configured to generate an ultrasonic oscillation in response to the ultrasound excitation signal to discharge liquids at and near the sound passage holes.

A method for improving the germination of *Carex lumbricoides* seeds based on nano-zinc oxide initiation belongs to the field of wetland ecological engineering technology. The invention includes the following steps: First, nano-zinc oxide particles with a particle size of 30±10 nm are dispersed in deionized water by ultrasonic oscillation to prepare a suspension of 12.5-200 mg / L; second, collected *Carex lumbricoides* seeds are float-screened, and plump seeds that sink to the bottom are selected and subjected to surface sterilization; subsequently, the sterilized seeds are immersed in the nano-zinc oxide suspension and initiated by agitation under light-proof conditions for 6 or 24 hours, followed by air drying to restore the initial moisture content; finally, the initiated seeds are placed in an artificial climate incubator for germination culture under specific variable temperature and light conditions. This invention utilizes the biocompatibility of nano-zinc oxide and effectively solves the problems of long germination cycles and low germination rates of *Carex lumbricoides* seeds by precisely controlling the initiation concentration and time. This invention has the advantages of simple operation, low cost, and environmental friendliness, and can significantly improve the germination rate and germination percentage, providing high-quality seedlings for the restoration of degraded wetland vegetation.

The invention discloses a method and device for generating charged microparticles through ultrasonic atomization water filtration, and the method comprises the steps: atomizing a liquid medium in a first liquid storage cavity through ultrasonic oscillation, and generating primary atomized gas containing the charged microparticles; the airflow power is provided, and the primary atomized gas is guided to the second liquid storage cavity through the conveying channel; the primary atomized gas enters and penetrates through a liquid medium layer stored in a second liquid storage cavity, large-particle liquid drops in the primary atomized gas are filtered out through the liquid medium layer, and purified gas with tiny charged particles escapes from the liquid level; and finally, discharging the purified gas escaping from the liquid level. According to the device, ultrasonic atomization and water filtration are combined, large-particle water mist is intercepted through the liquid medium layer, only nanoscale charged microparticles are output, high-concentration negative oxygen ions are generated, meanwhile, strong oxidizing by-products such as ozone and nitric oxide which are inevitably generated by adopting a high-voltage discharge structure are avoided, and the device has the advantages that the device is simple in structure and convenient to operate. And the potential safety hazard that high-voltage static breaks through air is eliminated.

The invention relates to the technical field of membrane preparation, and discloses a continuous flow preparation system of a graphene composite membrane, the system comprises a base material pretreatment module, a multi-component layered compounding module, an in-situ synergistic crosslinking module, an online detection and feedback regulation and control module and a reel-to-reel winding and unwinding module which are sequentially connected in series; the multi-component layered composite module realizes uniform mixing and layered coating of graphene and functional components through a coaxial runner dispersion unit, and an ultrasonic oscillation assembly inhibits graphene agglomeration; the in-situ synergistic cross-linking module adopts plasma-ultraviolet series treatment to strengthen film interface bonding; the online detection and feedback regulation and control module is linked with the central controller through spectrum detection and thickness detection to realize real-time optimization of preparation parameters; and the reel-to-reel winding and unwinding module ensures the transmission stability of the base material. According to the invention, full-process continuous production of the graphene composite membrane is realized, the preparation efficiency, the membrane layer uniformity and the mechanical stability are improved, and the method is compatible with multi-component functional compounding and is suitable for membrane preparation in the fields of water treatment, energy storage and the like.

The invention discloses a preparation method of a C5 and C6 alkane isomerization alkylation catalyst, which comprises the following steps: (1) adding a roasted MOR molecular sieve into alkali liquor, and carrying out ultrasonic oscillation, so that the MOR molecular sieve is partially dissolved in the alkali liquor to obtain alkali liquor A with a basic structural unit of an MOR topological structure; (2) adding a nano ZSM-5 molecular sieve and an MOR seed crystal into the alkaline solution A, and stirring to obtain an alkaline solution B; (3) crystallizing, filtering, washing, drying and roasting the alkali liquor B to obtain a ZSM-5-MOR composite molecular sieve with nano ZSM-5 as a core and MOR on the outer surface as a shell; and (4) carrying out active metal modification on the ZSM-5-coated MOR composite molecular sieve according to an impregnation method to obtain the catalyst. According to the preparation method, the catalytic stability of the catalyst can be improved, and the alkylation performance of C5 and C6 alkanes is improved.

An ultrasonic transducer device and a manufacturing method thereof are provided. The ultrasonic transducer device includes a substrate, an ultrasonic oscillation unit and an upper insulating layer. The ultrasonic oscillation unit is disposed on the substrate and configured to emit or receive an ultrasonic wave. The ultrasonic wave has a resonant frequency. The upper insulating layer covers the ultrasonic oscillation unit. The upper insulating layer has a film thickness positively related to the resonant frequency.

The present application relates to the technical field of semiconductor development, and discloses a fully automated developing assembly for scientific research, a developing device, and a developing station. The fully automated developing assembly for scientific research comprises a developing mechanism, a heating mechanism, a magnetic stirring mechanism, and an ultrasonic oscillation mechanism. A developing tank is designed as a small tank body adapted for insertion of wafers sized 1 cm*1 cm and 2 cm*2 cm, and a developing chamber is designed in an inverted trapezoidal shape, thereby further reducing the required developing solution and reducing experimental costs. The developing tank, developing solution inlet pipes and a developing solution outlet pipe are made of quartz materials, so as to ensure that a required miniaturized structure can be prepared. Additionally, a fully automated developing process is realized by using an automated device such as a material transfer device and an inlet peristaltic pump, thereby improving the repeatability and safety of scientific research. Moreover, the magnetic stirring mechanism and the ultrasonic oscillation mechanism are creatively combined, and a combination of side mounting and bottom mounting is adopted to avoid mutual interference. Compared with the conventional single ultrasonic oscillation design, the developing effect is significantly improved.

The present invention relates to an ultrasonic welding installation (1) with an ultrasonic oscillating unit which comprises a sonotrode (2) and a converter (3), wherein the sonotrode (2) and the converter (3) are arranged one after the other along a longitudinal axis, optionally with the interposition of an amplitude transformer, and the ultrasonic oscillating unit can be caused to resonate with an ultrasonic oscillation with a wavelength λ in the direction of the longitudinal axis, and with a counterpart tool (11), wherein the sonotrode (2) comprises a sealing surface (12; 13) and the longitudinal axis extends parallel to the sealing surface (12, 13) or forms an angle of less than 90° therewith, wherein the counterpart tool (11) comprises a counterpart tool sealing surface (16) which faces the sealing surface (12, 13) of the sonotrode (2) and the sonotrode (2) and the counterpart tool (11) being movable relative to each other in a processing direction perpendicular to the longitudinal axis, whereby the distance between the sealing surface (12, 13) of the sonotrode (2) and the counterpart tool sealing surface (16) can be adjusted. In order to specify an ultrasonic welding installation which at least reduces the described disadvantages, it is proposed according to the invention that the ultrasonic oscillating unit or the counterpart tool is held by a rotary holder which can be rotated about a rotation axis which extends perpendicularly to the longitudinal axis, wherein the rotation axis is arranged in such a way that the distance between the sealing surface (12, 13) of the sonotrode (2) and the counterpart tool sealing surface (16) can be adjusted by rotating the rotary holder.

The invention provides a method for preparing a molecular sieve from kaolin through ice crystal crystallization and application, the method for preparing the molecular sieve from kaolin through ice crystal crystallization comprises the following steps: calcining purified kaolin in a muffle furnace; dissolving the calcined kaolin and sodium silicate nonahydrate in deionized water, adding a surfactant tetrapropylammonium hydroxide and a gemini ionic surfactant butane-1, 4-bis (dodecyl dimethyl ammonium bromide), and stirring and heating; adjusting the pH value, forming a colloidal body, stirring to fully disperse and uniformly mix the precipitate, immersing the precursor in an ice-water bath, placing the precursor in an ultrasonic oscillator after the ice-water bath for ultrasonic oscillation treatment, standing, placing the precursor in a 25 DEG C water bath for gradient temperature recovery to avoid cracks formed by thermal shock, then heating the precursor in a water bath for aging, placing the precursor in the ultrasonic oscillator for ultrasonic oscillation treatment again, and drying to obtain the composite material. And carrying out hydrothermal crystallization reaction, washing, drying, grinding and calcining to remove the template agent. The molecular sieve prepared by the method is used for adsorbing and recycling phosphorus and fluorine in phosphogypsum leachate.