2912 results about "Ultrasonic assisted" patented technology

A method and apparatus for ultrasonic assisted deposition of a release agent onto a workpiece is disclosed. The release agent can be any fluorinated or non-fluorinated phosphorous-containing organic acid. The workpiece can be any workpiece desired to be coated with the release agent, such as a surface needing an anti-stick coating required in a plastic casting or injection mold. Metal oxide workpiece surfaces strongly bond to fluorinated phosphorus-containing organic acids. In particular, the present invention can deposit anti-stick coatings onto smooth or porous surfaces, such as anodized aluminum and its alloys, using ultrasonic assisted deposition

Method and apparatus for applying ultrasonic energy to a variety of manufacturing processes, particularly for producing an extrudate product from an extruder wherein one or more ultrasonic transducers are utilized to uniformly ultrasonically vibrate at least a portion of an extruder assembly.

The invention provides a method of effectively extracting ganoderma triterpenoids and ganoderan from mythic fungus germ entity by ultrasonic-alcohol extracting, complex enzyme-water extracting integration technology. The method is characterized by comprising the steps of: crashing the mythic fungus germ entity, using the ultrasound assisted alcohol extract (ultrasonic-alcohol extracting) to extract the ganoderma triterpenoids, then using complex enzyme assisted water extracting (complex enzyme-water extracting) to prepare ganoderan, then sponging drying to obtain ganoderma triterpenoids and ganoderan extractive. The solvents used by the method used in the invention is safe, innoxious and avoids the pollution to the environment by using chloroform, methanol and other organic solvents in the traditional method. And the invention has the features of low extraction temperature, simple device, convenient operation, low cost, fast speed, high effects and so on. Using the process to comprehensively extract triterpenoids and ganoderan active substances in glossy ganoderma can significantly increase the total active substance yield than the single extracting method.

The invention discloses a method for producing instant straw mushroom chips by adopting a vacuum low-temperature dehydration technology, and belongs to the technical field of deep processing of agricultural products. The method for producing the instant straw mushroom chips comprises the following main processes of: performing pretreatments such as conventional picking, cleaning, segmenting, blanching, non-sulfur color protecting, ultrasonic aid impregnating, sodium alginate film coating and the like on fresh straw mushrooms, and then, performing hot air and vacuum frying combined dehydrating, centrifugal oil removing, seasoning and packing. By adopting the new processes of non-sulfur color protecting, ultrasonic aid impregnating, sodium alginate film coating and hot air and vacuum fryingcombined dehydrating, the oil content of the product is remarkably reduced while the sensory quality of the product is improved and the impregnating efficiency is increased. In the method, necessary freezing treatment in the conventional fruit and vegetable chip frying process is not needed, so that the processing time is greatly reduced, and the production period of the product is effectively shortened. The product obtained by using the method has the characteristics of high puffing rate, low oil content, good sensory quality and the like; and a feasible new path is provided for deep processing utilization of the straw mushrooms.

The invention discloses a device and a method for polishing a sapphire substrate material by ultrasound assisted chemical machinery, which belong to the technical field of polishing of sapphire substrate materials. An ultrasound power supply is connected to a positive terminal and a negative terminal of an ultrasonic transducer through a conducting wire, a carbon brush and a copper slip ring; the ultrasonic transducer converts an electrical signal into a mechanical vibration signal; and ultrasonic vibration is transmitted to a polishing head and a sapphire substrate arranged on the polishing head through an amplitude transformer. Compared with the traditional chemical mechanical polishing process, the method has the advantages that: due to the adoption of a composite action structure of ultrasonic vibration and chemical machinery, the method reduces the polishing cost and the polishing time of the sapphire substrate, improves surface topography precision of the sapphire substrate, meets the performance requirement of serving as the substrate material, and improves the polishing efficiency and the polishing quality; the polishing efficiency is improved by over one time; and the surface roughness of the polished sapphire is less than angstrom level. The ultrasonic assisted chemical mechanical polishing process is characterized by simple operation, convenience and practicability.

The present invention relates to a method for extracting the purificatory cordycepin and the cordyceps amylase from the cordyceps militaris, belonging to the fields of medicines and health protection and chemical engineering. The cordyceps militaris powder is extracted and filtrated by a cooling seep method, the filter residue is mixed with ethanol, the supersonic wave assists to extract and offcenter, the supernatant has the processes of concentration and alcohol-precipitating, then the alcohol-precipitated supernatant has the processes of decompression, concentration and elution, the eluted liquid has the processes of concentration and crystallization and recrystallization using the n-butyl alcohol, at last the purificatory amylase is obtained after freezing and drying. The preparation progress of the present invention only uses water and ethanol as the solvent, thus reducing the pollution, the resin is capable of being reused a plurality of times with low cost. The present invention fully exploits the biological activity ingredients of the cordyceps militaris, realizes the coextraction of the cordycepin and the cordyceps amylase, guarantees the biological activities of the cordycepin and the cordyceps amylase, farthest increases the utilization rate of the raw material to the largest extent, reduces the manufacturing cost. The present invention is suitable for the large-scale industrialized manufacture.

The invention discloses a preparation method of ganoderma lucidum polysaccharide with high yield, which comprises the following steps: firstly, crushing ganoderma lucidum fruiting bodies into ganoderma lucidum powder, then sequentially extracting the ganoderma lucidum powder by adopting a microwave-assisted hot water extraction method and an ultrasonic-assisted hot water extraction method, and carrying out concentration, impurity removal, concentration, alcohol precipitation and drying on the obtained extracting solution to obtain water-soluble ganoderma lucidum polysaccharide; and extracting the ganoderma lucidum residues by adopting an alkali extraction method, and carrying out neutralization, dialysis, concentration, impurity removal, alcohol precipitation and drying on the obtained extracting solution to obtain alkali-soluble ganoderma lucidum polysaccharide. The method is used for extracting the ganoderma lucidum polysaccharide by combining microwave heating action and ultrasonic cavitation and extracting the alkali-soluble polysaccharide in the ganoderma lucidum by utilizing the alkali extraction method, thereby reducing the loss of the ganoderma lucidum polysaccharide; and the prepared ganoderma lucidum polysaccharide has the characteristics of high production yield, strong immunological activity and the like.

The invention discloses an ultrasonic-assisted tea oil extraction method using subcritical CO2, comprising the steps as follows: (1) taking dry tea seed, hulling, crushing, and placing in an extraction kettle; (2) injecting the subcritical CO2 into the extraction kettle to mix with the tea seed; (3) extracting the raw material for 0.5-5 hours; (4) decompressing and evaporating so as to completelygasify the subcritical CO2 liquid, wherein the temperature in evaporation process is controlled at 30-70 DEG C, and finally discharging the extracted tea oil from the bottom of a separation kettle. The method has the advantages that (1), the advantages of the subcritical CO2 extraction technology and the ultrasonic extraction technology are sufficiently utilized to shorten the extraction time andimprove the extraction yield; (2), the work pressure is low, and the natural activity of heat-sensitive material cannot be influenced since the extraction temperature is less than 30 DEG C, and the nutritional value and quality of the tea oil are improved; (3), the device cost is low, the refining process is less, the tea oil loss is less and the product oil yield is high; (4) a natural green food is obtained since the CO2 solve is residue-free.

The invention discloses a method for preparing carbide derived carbon by a fused salt electrolysis method. The method mainly comprises the steps that metal carbide serves as a raw material, and is subjected to die pressing sintering to form a metal carbide sheet to serve as an anode; by taking fused salt as an electrolyte, and a high-purity and high-density graphite rod as a cathode, fused salt electrolysis is performed in an electrolysis furnace in an argon atmosphere with the electrolysis temperature of 400-1300 DEG C, the electrolysis voltage of 1.8-3.2V, and the electrolysis time of 2-60h; after the electrolysis, an anode product is taken out, and subjected to water washing, ultrasonic-assisted pickling, water washing and drying treatment; and the carbide derived carbon is prepared. According to the method, the low-cost metal carbide can serve as the raw material for preparing the carbide derived carbon by the fused salt electrolysis method, so that a preparation technology is simplified; the cost is lowered; and the prepared carbide derived carbon serves as an electrode material of a supercapacitor, and has high specific capacity and good cycling stability.

The invention provides a conditioning and making method and a high-efficiency even drying method for a small trash fish marine product, belonging to the technical fields of food conditioning and aquatic product processing. The main process of the invention comprises the following steps of: removing three parts (fish scale, fish head and viscera) of a fresh or iced and fresh small trash fish marine product, washing the small trash fish marine product with clear water, slicing the small trash fish marine product into fish chips with the length of 6-10cm, deodorizing preprocessed fish meat for 4hours with compound rinsing fluid, then carrying out ultrasonic assisted vacuum impregnation conditioning (pickling and seasoning), secondary rinsing, draining, medium-short wave infrared drying pre-dehydrating, pulse spraying negative pressure microwave drying, packaging and sterilizing, thus the small trash fish dried fish prepared food product is obtained. The small trash fish marine product disclosed by the invention has good colour, fragrance and taste, beautiful appearance, low moisture content and complete nutrition, is a high-protein and low-fat food, is beneficial to reducing cholesterol and preventing cardiovascular and cerebrovascular diseases after being eaten for a long time, can be used for adjuvant therapy on leukaemia, stomach cancer and the like and is a high-quality leisure food for both the old and the young.

The invention discloses ultrasonic-assisted vacuum brazing equipment. The ultrasonic-assisted vacuum brazing equipment is characterized in that a vacuum chamber is arranged on a rack, and a screw rod guide rail upright is arranged on the rack on one side of the vacuum chamber. A cross beam is arranged at the upper end of the screw rod guide rail upright. An ultrasonic transducer is fixed on the cross beam. An ultrasonic amplitude transforming rod extends into the vacuum chamber through a flange. A mounting workbench and a heating plate are arranged below the ultrasonic amplitude transforming rod in the vacuum chamber. A lifting device on the rack penetrates the vacuum chamber to be connected with the heating plate. An induction heating coil is arranged between the mounting workbench and the ultrasonic amplitude transforming rod, and is connected with an induction heating device outside the vacuum chamber. An air inlet, an air exhaust port, two vacuum glove ports, a vacuum observation port, a vacuum gauge port, a thermocouple port, the ultrasonic transducer, the heating plate, the induction heating device, a vacuum gauge, a thermocouple and a vacuum pump are arranged on the wall of the vacuum chamber, and connected with a control cabinet through signal wires. Ultrasonic-assisted brazing in vacuum or protective atmosphere is realized.

The invention relates to a method for preparing naringin or hesperidin, which comprises the following operating steps of: 1) drying and crushing fruits, fruit peels and fruit residues containing the naringin or the hesperidin, and respectively filling the crushed materials into an extraction kettle of a pressure solvent extraction device; 2) selecting an extraction solvent, setting an extraction pressure, an extraction temperature, an extraction static time and an extraction frequency, extracting with the pressure solvent extraction device, and collecting the extract liquor; and 3) concentrating the extract liquor in vacuum, centrifugating the extract liquor or filtering the extract liquor to remove insoluble substances, adjusting pH of the clear liquid, cooling the clear liquid to crystallize or precipitate, recrystallizing the coarse crystals, drying the coarse crystals, or re-dissolving the precipitate for re-precipitation, and obtaining a pure product of the naringin or the hesperidin. Compared with the conventional solvent extraction method, ultrasonic-assisted extraction method and microwave-assisted extraction method, the preparation method has the advantages of high speed, capability of repeatedly extracting, safety, high efficiency, and simple post treatment such as concentration and purification.

The invention relates to a method for preparing wheat bran dietary fiber by utilizing ultrasound-assisted enzymatic hydrolysis, and in particularly belongs to the technical field of the agricultural and sideline product development, the functional food additive and the nutritional heath caring. The invention is characterized in that the invention adopts wheat bran as the raw material, and the wheat bran dietary fiber preparation is realized through utilizing the ultrasound treatment, and removing starch and protein by enzymatic method, and then the preparation of fine dietary fiber with different grain size is realized by crumbling with a grinder. The invention realizes the effective value increment and the utilization of the wheat bran, the prepared functional dietary fiber has important physiological function, and thereby can realize the functions of preventing constipation, colon cancer, intestina diverticulum, hemorrhoid and varicose veins of the lower extremities; the serum cholesterol is lowered, and the heart disease caused by coronary sclerosis can be prevented; the sensitivity of the peripheral nerve tissue to the insulin is improved, and the blood sugar level of the diabetes patient can be regulated, the invention is very useful for human health, and the economic benefit as well as the social benefit are greatly increased.

The invention discloses an ultrasonic-assisted laser material additive manufacturing device, which comprises a precise double-shaft numerical control rotating table, a support fastening base, a mold, an ultrasonic device, a base plate and a powder supply spray nozzle, wherein the precise double-shaft numerical control rotating table mainly consists of a double-support rotating table and a processing table; the support fastening base is arranged on the processing table; the mold is arranged on the support fastening base and is provided with a groove; the ultrasonic device is arranged in a way of passing through the processing table and the support fastening base and is connected with the bottom of the mold; the base plate is arranged in the groove formed in the mold; the powder supply spray nozzle is positioned above the base plate. The invention also provides a realization method of the ultrasonic-assisted laser material additive manufacturing device. The ultrasonic vibration is transmitted to the base plate, so that the base plate generates resonance; ultrasonic vibration stirring is performed in a molten pool formed under the laser effect in the laser material additive manufacturing process; a cavitation effect and a mechanical effect are generated; the combination state between layers can be improved; the formation probability of microsegregation and air holes inside forming elements can be reduced; meanwhile, crystal grains are refined; the residue stress is reduced; the forming elements with the good mechanical property are obtained.

The invention relates to an ultrasonic assisted laser electric arc composite welding method of an aluminum alloy. On the basis of carrying out a welding scheme by combining TIG electric arc welding and laser welding, ultrasonic vibration pressure is introduced into a welding seam, wherein a designed vibration head is in direct contact with the welding seam, so that ultrasonic resources can be more sufficiently utilized, and gas in the welding seam can be rapidly escaped; most of gas in the welding seam is removed so that welding seam gas pore defects are reduced or avoided; tissue crystal grains of the welding seam are remarkably refined by utilizing cavitation effect and acoustic streaming effect caused by the fact that ultrasonic waves are transmitted in liquid, and furthermore, tissue alloy elements of the welding seam are more uniform, segregation is reduced, the strength and corrosion resistance performance of the welding seam are improved, and the performance of a welding connector is improved; and welding residual stress is effectively eliminated or reduced and the strength and corrosion resistance performance of the connector are enhanced, so that the efficient welding of the aluminum alloy is realized.

The invention relates to a method for preparing a carbon nanometer tube/ carbon fiber multi-scale mixed composite material. The invention is technically characterized in that the method adopts the ultrasonic assistant electrochemical deposition manner to prepare a nanometer composite fiber prefabricated part; and then under the double-action of ultrasonic and direct current field, molding is carried out according to the composite material liquid molding process (LCM), such as resin transfer molding (RTM) and resin film infusion (RFI), and the carbon nanometer tubes are dispersed and oriented along the electric field direction, thereby obtaining the multi-scale mixed composite material. The power of the ultrasonic is 100-400W and the frequency is 20-80KHz; the electric field is a direct current field with the voltage of 20-1200V. The method combines the high performance of the carbon nanometer tube with the characteristics of low cost and high performance of the traditional composite material liquid molding process, thereby realizing the complementary and reinforced advantages; the obtained composite material effectively utilizes the characteristics of the carbon nanometer tube, and can be used as the structural and functional material.

The invention relates to a non-contact-type ultrasonic-assisted laser welding method belonging to the field of material processing engineering and aiming at solving the technical problems of easy air hole and hot crack generation, joint softening, and the like occurring in the laser welding of metal, such as titanium alloys, aluminum alloys, and the like in the prior art. The invention adopts non-contact-type ultrasonic-assisted laser welding of titanium alloys or aluminum alloys, the generated cavitation action and the breaking theory of ultrasonic waves in a molten pool can be used for thinning grains of a welding line and further improving the mechanical performance of the welding line; the high-frequency vibration of the ultrasonic waves can generate a certain stirring action in the molten pool, and moreover, the ultrasonic waves per se have cavitation action, and thus, the full overflow of gases in the liquid metals and the reduction or avoidance of the generation of air holes are benefited. Compared with contact-type ultrasonic-assisted welding, the method has a wide use range because an ultrasonic tool head is not in contact with a workpiece, is convenient to realize omnidirectional automatic flexible welding and improves the efficiency.

The invention relates to an ultrasonic-assisted alkaline pickling treatment method of aluminum electrolysis spent cathode carbon blocks. The ultrasonic-assisted alkaline pickling treatment method of the aluminum electrolysis spent cathode carbon blocks belongs to the technical field of aluminum electrolysis solid waste resource recovery, and comprises the following steps of smashing the aluminum electrolysis spent cathode carbon blocks, adding the aluminum electrolysis spent cathode carbon blocks into alkaline liquor for leaching, and filtering to obtain carbon powder and first filter liquor; carrying out alkaline pickling under the ultrasonic environment; leading CO2 into the first filter liquor, crystallizing out, filtering to obtain cryolite, an aluminum hydroxide mixture and second filter liquor, and recycling the second filter liquor. The ultrasonic-assisted alkaline pickling treatment method of the aluminum electrolysis spent cathode carbon blocks is simple in process, and convenient to operate; and through the synergistic effect of ultrasonic wave and alkaline pickling, the reaction rate is accelerated, the purity of the product carbon powder is improved, the maximum purity of the carbon powder is 97.92 percent, and the production cycle is 70min.

The desulfurization of fossil fuels is effected by the combination of fossil fuels with an aqueous mixture of hydroperoxide and quaternary ammonium fluoride phase transfer catalyst, the mixture then subjected to ultrasound to oxidize sulfur compounds present in the fuels. The polar oxidized species are removed via extraction. Another aspect is a portable, continuous ultrasound assisted desulfurization device having a sonoreactor for subjecting mixtures of fossil fuels to sonication to effect removal of sulfur containing compounds.

The invention discloses an ultrasonic assistant hydro-thermal synthesis process for magnetic Fe3O4 nanometer super fine grain. The invention solves the problems of impure products and large grain diameter. The invention has the technical proposal that the form of Fe3O4 crystal nucleus is promoted in the cavitation effect of ultrasonic; cavitation gas bubble is produced in mediums; the pH value of strong ammonia is adjusted to 11 to 13; and the nanometer grain diameter size and the magnetic characteristics are controlled by controlling the hydro-thermal synthesis temperature within range from 140 DEG C to 160 DEG C and within time of 3 to 5 hours, and by changing the micro environment of the air bubble chamber, so as to obtain the dry product which is black magnetic Fe3O4 nanometer powder after being milled. The invention comprises no organic solvent, belonging to full green environmental protection which is a break in the field, and the invention is also the first to use the ultrasonic technology for assistant hydro-thermal synthesis. The invention has the advantages of simple technology, low cost, small powder granularity and even grain diameter. The powder not only can be used as duplicate ink powder, but also can be board used in aspects such as medical, biological technology, magnetic immunocyte separation, DNA separation, nucleic acid hybridization, and preparation for magnetic butt directional medicine carrying micron ball.

The invention relates to a method for recycling carbon from an aluminum electrolytic waste cathode through ultrasonic-assisted pressure acid leaching and belongs to the technical field of aluminum electrolytic solid waste recycling. The method comprises the steps that after a carbon block of the aluminum electrolytic waste cathode is crushed, ultrasonic pretreatment is conducted, pretreated powder is added into an acid leaching solution for pressure leaching, carbon and filtrate are obtained through filtering, the filtrate is subjected to evaporative crystallization, and mixed powder of sodium salt and aluminum salt is separated out. According to the method, under the synergistic effect of ultrasonic pretreatment and pressure acid leaching, efficient, clean and high-purity recovery of precious matter in the carbon block of the aluminum electrolytic waste cathode is achieved. The technique is simple, operation is convenient, the reaction speed is high, secondary pollution is not generated, and the method is suitable for large-scale treatment of the carbon blocks of the aluminum electrolytic waste cathodes. The whole carbon recovery technological time is 60 min, the carbon recovery rate is 95.74%, and the purity of carbon powder is 97.42%.

The invention discloses a constant pressure ultrasonic wave aiding magnetorheological finishing method and a constant pressure ultrasonic wave aiding magnetorheological finishing device. The method includes the steps of firstly, mounting a workpiece on a double-rotating workbench; secondly, adjusting distance between a small ball milling head and the workpiece to allow a clearance to be formed between the two, and setting a threshold P1 and a threshold P2 of a force cell at an extending position of an electromagnetic coil iron core mounted above the small ball milling head through a control system; thirdly, starting a spindle to drive the small ball milling head to rotate, simultaneously starting an ultrasonic wave vibrating device to allow ultrasonic vibration of the small ball milling head, and jetting magnetorheological fluid in the clearance formed by the small ball milling head and the workpiece through an output pipeline; and fourthly, repeatedly finishing the workpiece according to the surface shape of the to-be-machined workpiece until the machining of the workpiece is completed. Accurate point removing can be performed on the workpiece surface by the method.