10 results about "Ultrasonic vibration" patented technology

The invention relates to an efficient bone powder preparing system which comprises a bearing base, bearing vertical columns, a high-pressure prefabricated bin, a low-temperature crushing bin and a conveying pipe. The bearing vertical columns are vertically connected with the upper surface of the bearing base, and the high-pressure prefabricated bin and the low-temperature crushing bin are slidablyconnected with the side surfaces of the bearing vertical columns through driving sliding rails. The high-pressure prefabricated bin mutually communicates with the low-temperature crushing bin throughthe conveying pipe. The high-pressure prefabricated bin comprises a tank body, a stirring device, an ultrasonic vibration mechanism, an irradiation heating device and high-temperature and high-pressure water vapor connecting end openings. The low-temperature crushing bin comprises a smashing cabin, crushing rollers, a bone powder grinding mechanism, an ultrasonic crushing mechanism, an ultrasonicvibration mechanism and a refrigerating unit. A using method of the efficient bone powder preparing system comprises three steps of bone material pretreatment, material conveying and low-temperaturepowder preparing. The production efficiency and quality of bone powder products can be effectively improved, and standardization of the bone powder preparing process can further be effectively improved.

The invention provides a purification method for gallium, which comprises the following steps of pre-purification, freezing crystallization, pickling, and packaging, wherein in the pre-purification step, liquid gallium is put into single equipment containing pickling liquid for stirring reaction, ultrasonic vibration is adopted, and spongy gallium impurities are separated from the liquid gallium preliminarily; in the freezing crystallization step, the liquid gallium separated preliminarily is subjected to freezing crystallization treatment, and heavy metal impurities in the gallium are removed; in the pickling step, the gallium subjected to the freezing crystallization treatment is placed into the single equipment for heating and fusing, a pickling solution is added and stirred, and the gallium is separated from spongy gallium through the ultrasonic vibration after stirring; and in the packaging step, the gallium separated after the pickling step is completed is packaged. The purification method can better achieve a purification effect; the purification flow is simple; the purification method can be automatically controlled easily, and is safe, environment-friendly and power-saving; no special equipment is required; and the enterprise cost is lowered.

The invention provides an adjustable magnetic field coupling and ultrasonic-assisted laser additive manufacturing and monitoring device. The device comprises a laser additive manufacturing system, a substrate, a magnetic field coupling assisted device and an ultrasonic-assisted unit. The substrate is mounted on an experiment support table. The laser additive manufacturing system is used for additive machining on the substrate. The magnetic field coupling assisted device is mounted nearby the substrate and is used for generating a magnetic field nearby the substrate. The ultrasonic-assisted unit is mounted at the bottom of the substrate and is used for generating ultrasonic vibration. The magnetic field coupling assisted device comprises a transverse magnetic field assisted unit and an axial magnetic field assisted unit. The axial magnetic field assisted unit is arranged nearby the substrate and is coaxial with a laser nozzle of the laser additive manufacturing system. The transverse magnetic field assisted unit is arranged nearby the substrate. By means of the device, the laser additive manufacturing machining quality and machining efficiency can be improved, and the shape of a molten pool, the height of a deposition layer and real-time change conditions can be monitored through a mobile monitoring device.

The invention discloses a casting device and casting method for pouring a molten alloy into a mold cavity to manufacture a cast product. The casting device is characterized in that a plurality of vibrating components and an independent runner are arranged in a mold; the independent runner communicates with the mold cavity; the otherside of the runner communicates with a die-casting cylinder or a pouring gate; and the runner and the vibrating components are connected with an ultrasonic wave generation and control device to perform ultrasonic vibration. According to the invention, the time of ultrasonic vibration can be prolonged, holes generated by ultrasonic vibration can be effectively utilized to promote the formation of a plurality of dendritic crystals, and the dendritic crystals are smashed to further refine the structures of the dendritic crystals so as to improve the yield and quality of cast products.

The invention discloses a thermal power plant ultrasonic atomization desulfurization-dust removal-ammonia escape prevention integrated system. The system comprises a flue gas diversion system, an ultrasonic atomization system, a demisting system, a water treatment system, a dosing system and an automatic control system. Flue gas flows through an ultrasonic flue through diversion, in the ultrasonic flue, a circulating desulfurization compound lye is pressurized through a high pressure pump and is atomized by an ultrasonic device to form uniform fog groups composed of micron-sized fine fog drops, the ultrasonic flue is fully filled with the fog groups, the fog groups block passing flue gas, SO2 in the flue gas is captured by an atomization desulfurization agent and fast undergoes a reaction, an ultrasonic generator releases ultrasonic wave and shakes the desulfurization compound lye to obtain atomized gas having sizes of less than 5-10 microns, the atomized gas of the desulfurization compound lye has large surface tension and a certain viscidity and can effectively capture dust in flue gas, an ultrasonic generator can effectively capture ammonia escaping in the denitrification process and the escaped ammonia in the ultrasonic vibration atomization environment and nitrogen oxides further undergo a reduction reaction.

According to the method for improving the quality of the inner wall of the laser-processed micropore based on the dual cavitation effect, post-treatment strengthening is conducted on the laser-processed micropore based on the dual cavitation effect of laser cavitation and ultrasonic cavitation, and a large number of cavitation bubbles can be generated through the dual cavitation effect; the residual tensile stress on the inner wall of the micropore is changed into pressure stress by the local shock wave effect generated by cavitation collapse, the distribution of the residual pressure stress on the inner wall of the micropore can be improved, the generation trend of microcracks on the wall of the micropore is reduced, and the generation of the microcracks is effectively reduced or even prevented, so that the mechanical property of the micropore area is effectively improved. The laser cavitation is precisely positioned in a micropore processing area, so that the cavitation strengthening effect on the micropore inner wall area can be ensured. A large number of cavitation bubbles can be generated through ultrasonic cavitation, and the defect that the number of the cavitation bubbles is small under the laser cavitation effect is overcome. According to the method, a water temperature adjusting mode is adopted, the maximum diameter value of the cavitation bubbles is reduced, and the cavitation effect is more obvious and effective. In addition, the ultrasonic vibration also has the effects of ultrasonic cleaning and grain refinement, so that the defects caused by laser drilling are further reduced, and the application field of laser drilling is widened.

The invention discloses a method for preparing dried pawpaw by ultrasonic vibration, and particularly relates to a dried pawpaw preparation method through treatment by a certain measure. The method comprises the following steps: firstly, after cutting pawpaw into strips, soaking in saline water, wherein concentration of the saline water is of specific concentration, drying through an oven and removing a part of water, secondly, placing the dried pawpaw strips in a soaking solution, and soaking, wherein the soaking solution contains a certain specific substance, for enhancing brittleness of thedried pawpaw, and preventing fragrance of the dried pawpaw from losing, improving the fragrance and mouthfeel of the dried pawpaw, and improving stability of the pawpaw. The method is capable of acquiring a type of the pawpaw which is fragrant, crispy and delicious, and good in mouthfeel. In addition, the dried pawpaw prepared by the method has the advantages of good stability, simple and controllable preparation method, and strong social effect and economic effect.