828results about How to "Simple equipment" patented technology

Endocardial implantable cardiac leads are disclosed for applying electrical stimulation to and/or sensing electrical activity of the heart at one or more distal electrode positioned at a cardiac implantation site within a cardiac vessel adjacent to and at a desired orientation to the left ventricle or atrium of the heart. The distal electrode(s) is supported by a tubular electrode support having a diameter large enough to bear against the blood vessel wall and a support lumen that allows blood to flow through it. A retention stent extends proximally from a distal stent end fixed to the tubular electrode support to a proximal stent end. After advancement to the cardiac implantation site employing a lead delivery mechanism, the retention stent is expandable from a collapsed stent state in which the outer diameter of the retention stent is less than the inner diameter of the vessel to an expanded stent state. The expanded stent is lodged against the blood vessel wall and inhibits movement of the stent and distal electrode support. The expanded stent lumen is aligned with the electrode support lumen for allowing blood to flow through the aligned electrode support lumen and expanded stent lumen. The retention stent may take any of the known forms that can be introduced in the collapsed stent state within an introducer lumen or mounted to an introducer and can either self-expand upon release in the blood vessel or be mechanically expanded within the blood vessel.

The invention provides an inorganic ion doped carbon nitride photocatalyst and a preparation method thereof. The inorganic ion doped carbon nitride photocatalyst has a molecular formula shown in a formula (I). The preparation method comprises the following steps of: sufficiently mixing carbon and nitrogen sources and inorganic salt in a water solution, then drying and calcining to obtain the inorganic ion doped carbon nitride photocatalyst which has the molecular formula shown in the formula (I). According to the photocatalyst, inorganic ions enter a crystal lattice or an interlayer of C3N4, and visible-light catalytic activity of the C3N4 photocatalyst provided by the invention is greatly enhanced through the doping of the inorganic ions. Experiments indicate that the visible-light catalytic activity of the inorganic ion doped C3N4 photocatalyst with a two-dimensional structure is 1.5-3 times higher than that of a photocatalyst without C3N4 doped. Besides, the preparation method provided by the invention is moderate in condition, easy to operate and favorable to large-scale production.

The invention relates to innocent treatment of cyanide and fluoride in solid waste residues and a recycling process thereof. The method of innocent treatment and recycling of cyanide and fluoride contained in electrolysis bath overhaul residues or solid at a normal temperature is characterized in that a water ball mill with a weight ratio of 1:1 is added into and mixed with the electrolysis bath overhaul residues containing cyanide and fluoride, calcium or magnesium or sodium compound that can produce hypochlorous acid by being dissolved in water, and water-soluble calcium or magnesium or aluminum salt to prepare pulp, thereby enabling cyanide to be dissolved and reduced in the liquid phase of ball mill pulping; meanwhile, calcium ions, magnesium ions and aluminum ions released by water-soluble calcium or magnesium or aluminum salt and fluoride ions in the liquid phase form water-insoluble calcium fluoride, magnesium fluoride and aluminum fluoride which are harmless sediments; and neutral water is separated from slurry by the solid-liquid separation, so that the purpose of decontamination and no discharging can be achieved.

The invention relates to an anti-reflection coating and a super-hydrophobic self-cleaning anti-reflection coating and a preparation method thereof. The anti-reflection coating is formed by a SiO2 ball-shaped nanoparticle layer with the particle size of 10-100 nm, and the surface of the coating has a rough structure. The super-hydrophobic self-cleaning anti-reflection coating is formed by providing a low surface energy substance on the surface of the anti-reflection coating, and the surface of the low surface energy substance has a rough structure. The coatings are obtained by using layer-by-layer electrostatic self-assembly technique. The light transmittance of the glass coated with the super-hydrophobic self-cleaning anti-reflection coating can increase to 99.1 from 91.3%, and the single-side reflectivity of the glass can reduce lowest to 0.3%. Compared with a solar cell coated with a common glass flake, a standard mono-silicon solar cell panel coated with a glass with the super-hydrophobic self-cleaning anti-reflection coating can utilize solar energy more effectively, and the efficiency can be improved to more than 6.6%.

The invention discloses a continuous silicon carbide fiber preparation method, which is characterized by comprising the following steps: (1) preparing a polycarbosilane ceramic precursor by using a precursor conversion process; (2) heating and melting the polycarbosilane ceramic precursor under the protection of an inert gas, and forming polycarbosilane fibril by spinning under the action of a pressure; (3) performing the infusible treatment of the polycarbosilane fibril in an atmosphere of an oxidizing gas to increase the molecular weight of the polycarbosilane fibril by 6 to 20 weight percent with oxidization; and (4) combining strands of infusible polycarbosilane fibril to make a polycarbosilane fibril beam, and continuously passing the polycarbosilane fibril beam through a high-temperature furnace at 1,100 to 1,400 DEG C under vacuum or the protection of the inert gas for firing into the continuous silicon carbide fibers. The method can prepare continuous SiC fibers with high performance and long continuous length; the equipment required by the method is simple; the process flow adopted by the method is short; and production efficiency is high.

The invention discloses a vehicle speed measurement method, a supervisory computer and a vehicle speed measurement system. The method comprises the following steps of: receiving multiframe images collected by a close-up camera aiming at a vehicle to be tested according to a preset frequency by the supervisory computer; calculating the running track of a licence plate, and selecting the multiframe image with correct track as an image group to be analyzed; and tracking and calculating the imaging distance of the licence plate in the image group to be analyzed, calculating the actual distance corresponding to the imaging distance according to the correspondence between a real world coordinate system and an imaging coordinate system, dividing the actual distance by the time difference of the corresponding image obtained by calculating according to the preset frequency to obtain the current tracking vehicle speed, and averaging to obtain the vehicle speed of the vehicle to be tested. The supervisory computer comprises a receiving module, an image selecting module and a speed calculating module. The system comprises the close-up camera, a supplementary light source and the supervisory computer. The invention needs no extra vehicle speed detection equipment or a plurality of cameras for matching, has convenient installation, simple equipment and more flexible and various application scenes, and has the advantages of strong robustness and high speed measurement precision.

The invention relates to a method for generating a composite oxide nanotube array on the high-entropy alloy surface. The method includes the steps that a high-entropy alloy is subject to anodic oxidation after surface pretreatment is carried out, the oxidation voltage and the oxidation time are changed, and composite oxide nanotubes with different diameters and different thicknesses can be generated on the high-entropy alloy surface. After the prepared composite oxide nanotubes are subject to high-temperature heat treatment, amorphous type nanotube crystallization is carried out; and meanwhile, the heat stability of the nanotube array is high, and the complete nanotube array morphology can be kept after high-temperature heat treatment. The composite oxide nanotube array prepared through the high-entropy alloy has the higher heat stability, and can be applied at a higher temperature, for example, high temperature catalyzing, high temperature gas sensitivity and the like can be achieved. In this way, thin films of the generated composite oxide nanotubes will have a great promotion effect on expanding the application of the high-entropy alloy.

The invention discloses a compounded plasticizer for thermoplastic processing, which is formed by mixing the components by weight percent: 50-80% of inorganic metal salt plasticizer and 20-50% of organic plasticizer. The invention also discloses a method for plasticizing polyvinyl alcohol using the above compounded plasticizer, which comprises the steps of dissolving 30-50 parts of the compounded plasticizer in 60-70 parts of water to form a solution, adding 100 parts of polyvinyl alcohol with alcoholysis degree higher than or equal to 88% into the solution, then fully swelling the polyving akohol at 20-60 DEG C, and finally drying fully swelled polyvinyl alcohol at 50-60 DEG C until constant weight is reached, so as to obtain the modified plasticizing polyvinyl alcohol to be processed into a product by a thermoplastic processing method. When the compounded plasticizer disclosed by the invention is used for modifying polyvinyl alcohol, the crystal structure of polyvinyl alcohol is damaged, the melting temperature of polyvinyl alcohol can be effectively reduced, thermoplastic processing of polyvinyl alcohol is realized, and the problem of product frangibility caused by phenomena of movement and precipitation of the plasticizer is avoided.

The invention relates to a new technology for extracting tea saponin and tea seed oil from tea seeds by using water as a solvent. The invention uses water as a solvent, firstly extracts tea saponin from the tea seeds, and then extracts the tea seed oil. The invention comprises the technological processes of tea seed husking and cleaning, tea seed crushing, four-stage counter-current water immersion and extraction by externally heating, emulsion breaking and separation, centrifuging and dewatering, ultra-filtration and purification, nano-filtration and concentration, and spray drying. The material after the tea seed oil is extracted can be recycled and made into feed additive. The technological method is simple and feasible. The nutrient components in the oil, the active substances and the flavour of the tea oil are not lost in the oil making process. The refining process does not generate secondary pollution. The obtained refined tea seed oil has limpid oil colour.

The present invention method of hollow or coating type nickel alloy spherical powder includes the following steps: dissolving nickel salt, adding alkali liquor and reducing agent, utilizing alkaline colloidal kernel generated by self-body reaction as core, using the colloidal kernel surface as active center, self-catalyzing reducing agent and nickel iron reaction to form nickel alloy shell body on colloidal kernel surface, make after-treatment so as to obtain the hollow or coated type nickel alloy spherical powder. Said invention can be used in the fields of high-effective catalyst, adsorbing agent, photoelectric and electromagnetic device, microwave absorption material and bio-pharmaceutical industry, etc.

The invention relates to a method for recovering waste household appliances by harmlessness and reclamation. The method comprises the following steps of: disassembling and classifying waste household appliances; carrying out harmless treatment on CRT glass obtained by classifying in the disassembling and classifying step; treating chlorofluorocarbon (CFC) recovered in the disassembling and classifying step; treating printed circuit boards and metal plastics obtained by classifying in the disassembling and classifying step: firstly, separating out plastics and metal; then carrying out acid leaching on the metal; next, sequentially carrying replacement on leaching liquid to extract Ag, electrolysis to extract Cu and alkali fusion to extract Au; and recovering intermediate products generated in the treatment process. The method can sufficiently and harmlessly treat displays, circuit boards, and the like and sufficiently extract resources such as Hg, Cu, Fe, Sn, Pb, Au, Ag, plastics, trace Cd, and the like. The method avoids new pollutants generated by disposal, and used reagents have no poison and low price, thus the method has good industrial promotional value, better environmental benefit, economic benefit and social benefit and wide development prospect.

The invention provides a telegraph pole installation robot. The telegraph pole installation robot comprises a walking mechanism, a rotary table, two bottom plates, a punching module and a poling module, and is characterized in that the rotary table is slidingly installed above a slide rail located above the walking mechanism; the two bottom plates are hinged to a platform; the punching module is slidingly installed on a linear guide rail of one bottom plate; the poling module is slidingly installed on a linear guide rail of the other bottom plate. The telegraph pole installation robot can be used for automatically digging a pole pit and automatically poling, so that manpower is saved; the equipment is simple, the construction efficiency is improved and the dangerousness of working is reduced.

The method for separating sugar and acid from biomass hydrolysate includes the following steps: placing the pretreated biomass hydrolysate into double-chamber bipolar membrane electrodialyzer equipment, under the condition of that the operation pressure is 20V-50V making sugar and acid separation and recovery of acid, separating time is 120-468 min. the loss rate of sugar is 2.3-3.8% and the percent recovery of acid is greater than 98%. At the same time, it can recover and reuse inorganic and organic acids in the hydrolysate, and can raise the quality concentration of sugar in the hydrolysate.

The invention discloses a quadruple frequency-based scheme for realizing a base station passive full duplex millimeter wave RoF link, which is mainly used for remote transmission of a wireless signal between a base station and a central station in a Gb/s broadband millimeter wave communication system. The scheme is as shown in an attached drawing. A local oscillator with a frequency of fD/4 drives a lithium niobate Mach-Zehnder modulator to produce a light carrier with a frequency interval of fD/2 and two second-order sidebands. One sideband is separated by an FBG to realize single wave carrier modulation of a downlink data signal. The light carrier is transmitted to the base station through an optical fiber, and the light carrier and a double-frequency light millimeter wave signal with a frequency of fD are separated by the Mach-Zehnder modulator with a delay time difference of 1/fD. The former is reserved as an uplink light source, and the latter produces a millimeter wave signal with the frequency of fD through photoelectric conversion, and the signal is transmitted to a user through an antenna. The uplink millimeter wave signal is processed by envelope detection to acquire a baseband signal, loaded onto a reserved light wave by a low-speed optical modulator and sent back to the central station by the optical fiber. The scheme has a plurality of advantages, so that the scheme has good application prospect.

The invention relates to aqueous enzymatic extraction of flax-seed oil. It uses degumming flax-seed as material, processes smashing, enzymolysis, and centrifuging to gain flax-seed oil. It is processed enzymolysis by alkali protease and compound cellulose enzyme to increase free oil yield which has higher quality, easy fining, higher nutritive value and functional performance. Compared with the traditional expression and solvent extraction method, it has the advantages of simple device, safe operation, litter pollution, low energy consumption etc.

A regulating method for laser device light path collimating includes the following steps: firstly, adhering a transmission grating larger than the aperture at the aperture plate behind the aperture plate of the spatial filter; secondly, starting up the laser light source, inserting a negative lens in the main light path, which allows the aperture to be fulfilled with the laser beam; the aperture profile is diffracted by the transmission grating and is imaged to the far-field detector by the imaging lens, thereby obtaining the central position of the aperture; shifting the negative lens out the light path, which allows the focal spot of the laser beam to thrill through the aperture, the focal spot is diffracted by the transmission grating and is imaged to the far-field detector by the imaging lens, thereby obtaining the central position of the focal spot; regulating the first reflecting mirror and the second reflecting mirror to superpose the central position of the focal spot of the laser beam and the central position of the aperture of the spatial filter, thereby the regulation is in good condition. The invention has features of simple equipment, easy regulate and high accuracy.

A preparation method for a CBN (Cubic Boron Nitride) coated cutter based a on micrometer/nanometer diamond transition layer comprises the main steps as follows: pretreating a hard alloy substrate; pretreating tantalum wires; putting the substrate into heat wire method chemical vapor deposition equipment, and respectively depositing micrometer diamond and nanometer diamond by changing technological parameters; placing a deposited film in radio-frequency magnetron sputtering equipment and conducting pre-sputtering treatment on the film through Ar ions; and depositing a CBN coating in Ar and N2 gas atmosphere by taking hBN as a target material and the micrometer/ nanometer diamond as a transition layer. The invention has the advantages that the technology and the equipment are simple, the operation is easier, and the combination of a coating and the substrate is improved remarkably.

The invention discloses a low-temperature normal-pressure leaching vanadium recovery method of a vanadium-containing roasted clinker with an ammonium bicarbonate solution. According to the low-temperature normal-pressure leaching vanadium recovery method, the clinker obtained via roasting of a vanadium-containing raw material is subjected to leaching vanadium extraction in the ammonium bicarbonate solution, vanadium enters into the solution in a form of ammonium vanadate, a leaching residue and a vanadium-containing solution are obtained via filtration, and an ammonium metavanadate product can be obtained from the vanadium-containing solution via ammonium vanadate cooling crystallization separation. Ammonium bicarbonate solution leaching is adopted; processes are simple; operation is convenient; vanadium recovery rate can be as high as 90 to 99%; vanadium clean and high efficiency extraction is realized; and no high-salinity ammonia nitrogen wastewater is generated.

The invention provides a purification method of an organic waste gas, in particular to a purification method of organic water gases containing aldehydes, ethylene glycol, PTA dust and so on, polyester waste gas processing method for example. After being discharged from the discharge port, polyester waste gas firstly enters into an adsorption homogenization tank filled with porous solid adsorbent, and then is processed catalytic combustion treatment. In adsorption homogenization tank, the components of ethylene glycol and so on are fully absorbed, and the PTA dust is filtrated, and at the same time the concentrations of components of aldehydes and so on are homogenized under adsorption-desorption effect. The concentration homogenized waste gas enters into catalytic combustion reactor, and is totally oxidized into carbon dioxide and water under the effect of catalyst, and standard-met discharge is achieved. The function of the special typed active carbon used in the invention is not condensation but adsorption, filtering and homogenizing. The invention can prolong the service life of catalytic combustion catalyst, has good purification effect, safe and stable arrangement.

The present invention provides a method for manufacturing metal nanoparticles, comprising: dissociating at least one metal precursor selected from the group consisting of silver, gold and palladium; reducing the dissociated metal precursor; and isolating the capped metal nanoparticles with an alkyl amine.

The present invention provides a method for manufacturing metal nanoparticles which can be performed with a simpler equipment compared to the gas phase method, can provide metal nanoparticles in high yield by only using alkyl amine without using any surfactant in high concentration which further allows mass production, can provide metal nanoparticles having high dispersion stability and uniform size of 1-40 nm.

The invention provides an electro hydrodynamic preparation device and method for batch micro-droplets and micro-structures. The preparation device comprises a liquid conveying system, an injection receiving system, a voltage control system, a high-speed photographing system and a bottom platform movement control device. The preparation method includes the steps that a micro-injection pump is utilized to push liquid to a needle head tip from an injector according to a certain flow; fluid is gathered at the needle head tip; under the effect of an electric field, the liquid gathered at the needle head forms a Taylor cone, linear liquid ejected from the tip of the Taylor cone falls onto a receiving substrate, and finally deposited droplets are formed. Bottom platform moves to be matched with continuous ejection of the linear liquid, so batch micro-droplets or micro-structures of certain modes can be prepared.

The invention provides a ruthenium catalyst for ammonia synthesis and a preparation method thereof. The ruthenium catalysts for ammonia synthesis comprise active carbon as a carrier, metal ruthenium as active component, and alkali metal and alkaline-earth metal as cocatalyst. The active component ruthenium is loaded on the active carbon carrier in a Ru(OH)3 manner, wherein the capacity is 0.5-10 wt.% of the active carbon weight calculated based on Ru, and ratio of the alkaline-earth metal and Ru based on the amount of substance is 0.2-10:1. The catalyst of the invention has high noble metal dispersion degree, simple process and device, convenience for operation, short preparing time and high activity of the produced catalyst, thus facilitating for industrial production, in which reaction of the noble metal precursorcan be achieved without hydrogen or other reducing solution and the subsequent preparation step will not influence the distribution of the noble metal.

The invention discloses an aluminum powder pigment with iridescent pearl luster and a preparation method thereof. The method uses aluminum powder with an average particle size of 10 μm to 150 μm and a surface coated with SiO2 film as the substrate raw material. The SiO2 film is inert, acid-resistant, heat-resistant, and transparent. The pH of the solution is 1.5-2.5 and the temperature is 60 Under the condition of ℃~80℃, deposit a layer of nano-titanium dioxide film on the transparent SiO2 film by chemical liquid phase deposition, wash and dry, and bake the pigment at 500℃~600℃ under the protection of inert gas 0.5~1.0 h, the high-gloss pearlescent aluminum powder pigment with TiO2/SiO2/Al-based composite film was obtained. The pigment also has excellent comprehensive properties such as the illusion interference effect of pearlescent pigments and the conductivity, high hiding power, shielding and non-toxic environmental protection of metallic aluminum powder pigments. It has unique decorative effects and can be widely used in high-end automotive topcoats and high-end decorations. Products, surface coating of high-end instruments, ink printing, children's toys, etc. The method of the invention is simple and feasible, and has industrial feasibility.

The invention belongs to the technical field of metal-organic framework materials, and relates to a method for preparing a polynary nano-cage composite material by using a zeolitic imidazolate framework as a template. The method comprises the following steps: synthesizing a ZIF-67 framework through a solvothermal technology by using methanol as a solvent, and synthesizing a hydroxide precursor from nickel nitrate and zinc nitrate by adjusting a mass ratio of the zinc nitrate to the nickel nitrate; and sequentially centrifuging, washing, drying and calcining the hydroxide precursor to obtain the nano-cage composite material. The method has the advantages of simple process, low price, easiness in control, and low cost, and the prepared product is a nano-cage composite material having a non-spherical hollow structure, and has the advantages of large specific surface area, high crystallinity, good morphology, and easiness in realization of industrialization.

The invention relates to the field of connecting of dissimilar materials. A method for connecting a thermoplastic composite with metal comprises the following steps that firstly, a to-be-welded surface of a to-be-welded metal piece and a to-be-welded surface of a to-be-welded thermoplastic composite piece are roughened; secondly, the to-be-welded metal piece and the to-be-welded thermoplastic composite piece are spliced together and fixed; thirdly, an induction heating device is placed above a welding area; fourthly, induction current generated in the metal piece by a magnetic field at the end of a coil is used for heating the metal piece, and matrix resin in the thermoplastic composite absorbs heat to be molten; and fifthly, the induction heating device is started, the coil of the induction heating device is moved in the welding direction, the molten matrix resin is cooled, a connector between the molten matrix resin and the metal piece is formed, and continuous welding of the thermoplastic composite and the metal is achieved. According to the method for connecting the thermoplastic composite with the metal, acceleration is high, equipment is simple, the method can be applied to welding of large three-dimensional curved-surface components in complex shapes, and meanwhile, use of electromagnetic sensitive materials is avoided.

The invention discloses a preparation method of green tea with low caffeine, which comprises the steps of fresh leaves spreading, hot water soaking, centrifugal dehydration, hot wind dehydration, rolling, drying and refined processing. The hot water soaking, hot wind dehydration and drying are the key of the invention. The hot water soaking time, the weight ratio of the fresh leaves and hot water, the cooled leave temperature controlling after soaking and water-removing, the hot wind dehydration temperature and the drying technical requirement of ensuring that the moisture content of the finish tea is less than or equal to 7 percent are all the core element of the invention. By adopting the invention, the manufactured green tea with low caffeine has caffeine content that is less than 1.0 percent, tea polyphenol content that is more than 18 percent and other effective ingredients maintaining at about 85 percent; and the green tea with low caffeine still has the traditional flavor of Chinese green tea; more importantly, no organic solvent is used in the preparation process, so as to guarantee the food safety of the finished tea. The device used in the invention is simple, low in investment and can be easily operated, and the method is a new method for producing green tea with low caffeine.

The invention relates to a carbon nanotube/silicon/graphene composite material and a preparation method, the method comprises the following steps: heating a substrate to 500-1300 DEG C, then introducing carbon source in a gaseous state into a reaction chamber, keeping temperature, reacting for 1-300 minutes, stopping the introduction of the carbon source in the gaseous state to obtain the carbon nanotube material; then introducing a silicon source in the gaseous state in the reaction chamber, keeping for 1-300 minutes, stopping heating of the substrate and cooling to room temperature to obtain the carbon nanotube/silicon composite material; taking the carbon nanotube/silicon composite material, placing graphene and the carbon nanotube/silicon composite material in absolute ethyl alcohol for ultrasonic reaction, then filtering and drying to obtain the carbon nanotube/silicon/graphene composite material. In the carbon nanotube/silicon/graphene composite material, the prepared silicon carbon composite material is used for a cathode material of a lithium ion battery, and has excellent energy storage performance and cycle performance.

The invention relates to a method for preparing nano indium oxide with controllable appearance by a hydrothermal method. The method comprises the following steps of: (1) weighing soluble indium salt and urea in a molar ratio of 1:2-1:15, and adding de-ionized water into the mixture to prepare uniform colorless transparent solution with magnetic stirring; then transferring the solution to the inner lining of a reaction kettle; preserving the heat at the temperature of between 120 and 140 DEG C to perform reaction for 12 to 24 hours; cooling the reaction product to room temperature; and performing centrifugal separation, and washing and drying the product to prepare a white precursor In(OH)3; and (2) calcining the dried indium hydroxide for 2 to 3 hours in air atmosphere at the temperature of between 450 and 550 DEG C to prepare slightly yellow indium oxide powder. The preparation method has the advantages of simple process, low production cost and capability of preparing the indium hydroxide nanostructures with various appearances by only adjusting and controlling the ratio of the raw materials without any template, surfactant or structure directing agent, and provides a convenient method for synthesizing the nano indium oxide with controllable appearance.

The invention discloses polymer hollow nano microspheres and a preparation method thereof. The preparation method is characterized by comprising the following steps: adding 10-200 parts by weight of polymer A, 0-200 parts by weight of additive and 100-1000 parts by weight of solvent A into a dissolving kettle provided with a stirrer and a thermometer, dissolving by stirring at 30-100 DEG C, debubbling, and aging to obtain a polymer shell solution; adding 0-400 parts by weight of polymer B and 100-1000 parts by weight of solvent B into a dissolving kettle provided with a stirrer and a thermometer, dissolving by stirring at 30-100 DEG C, debubbling and aging to obtain a core solution; putting the polymer shell solution and the core solution in a high-voltage electrostatic field, and carrying out electrostatic spraying by a coaxial electrostatic sprayer to obtain polymer microspheres, wherein the inner diameter of the needle head of the core is 0.4-0.6mm, the solution flow rate is 1-5ml/h, the inner diameter of the needle head of the shell is 0.9-1.2mm, the solution flow rate is 5-10ml/h, the spraying voltage is adjusted to 5-25kV, the spraying distance is 1-10cm, and the temperature of the receiving bath is 10-50 DEG C; and removing core substances of the microspheres to obtain the polymer hollow nano microspheres.

The integrated photoelectronic registration and shaft-less transmission control system for intaglio printing machine set includes one upper computer with touch screen; one lower computer comprising a PCC power source module, a CPU module, a communication card, a C analog quantity input module and a analog quantity output module; and one executing mechanism comprising an HUB interface, a servo driver, a photoelectric eye, a cursor signal analyzing card, a coder signal analyzing card, a servo motor, a mechanical reducing mechanism, a zero point confirming approach switch and a printing plate roll. The system has simplified mechanical structure, convenient operation, stable control performance and high product quality.