42results about How to "Efficient deposition" patented technology

The invention discloses a composite reinforcement type suction barrel device based on microorganism induction and a use method thereof. The composite reinforcement type suction barrel device based on microorganism induction comprises a suction barrel model system, a microorganism cement reinforcement system and a test monitoring system. The suction cylinder model system comprises a suction cylinder, a grouting pipeline and hydraulic equipment, and the grouting pipeline is laid on the inner wall of the suction cylinder and used for injecting microorganism cement grout; the hydraulic equipment is connected to the suction barrel and used for controlling lifting and pressing-in of the suction barrel. The microbial cement reinforcement system comprises liquid storage equipment and negative pressure equipment, and the liquid storage equipment is connected to the grouting pipeline and used for storing and providing microbial cement grout for the grouting pipeline; the negative pressure equipment is connected to the suction barrel and used for applying negative pressure to the interior of the suction barrel in the grouting process, and permeation of microorganism cement grout is promoted. The test monitoring system is used for testing mechanical parameters of a soil body, monitoring the suction barrel and carrying out a loading test on the suction barrel.

The invention relates to the technical field of underwater riprap positioning, in particular to a high-precision underwater riprap method and system based on GPS positioning. The method comprises the following steps: acquiring a riprap deposition coordinate instruction; carrying out riprap coordinate acquisition based on a GPS technology and the riprap deposition coordinate instruction to obtain deposition coordinate data; establishing an initial underwater simulation topographic map; transmitting the deposition coordinate data to the initial underwater simulation topographic map for coordinate mapping so as to generate a simulation underwater topographic map; performing water surface impact coordinate analysis of riprap according to the simulated underwater topographic map and the deposition coordinate data to generate water surface impact coordinate data; designing a water surface riprap throwing strategy according to the water surface impact coordinate data; and executing underwater riprap operation according to the water surface riprap putting strategy, and performing iterative updating optimization on the water surface riprap putting strategy. According to the underwater riprapping method, the more accurate and efficient underwater riprapping method is achieved.

The invention discloses a silicon-based negative electrode material as well as a preparation method and application thereof. The silicon-based negative electrode material comprises porous zeolite, and silicon and non-metal doping elements deposited in pores of the porous zeolite, wherein the material of the non-metal doping element comprises one or more of B, P, S, N, C, As and Te; the mass of the non-metal doping element accounts for 0.5%-15% of the total mass of the silicon-based negative electrode material; the mass of silicon accounts for 50-80% of the total mass of the silicon-based negative electrode material; when the silicon-based negative electrode material disclosed by the invention is applied to the lithium battery, the lithium battery can have relatively low volume expansion rate, relatively high specific capacity and good conductivity and cycle performance.

According to the carbon fiber reinforced 3D printing wire rod and the preparation method thereof, the mechanical property of continuous carbon fibers and a resin matrix can be effectively improved, full transmission of loads in a composite material can be effectively guaranteed, and improvement of the overall performance of the composite material is guaranteed; meanwhile, the short carbon fibers are doped into the carbon fiber reinforced 3D printing wire rod, so that the fluidity of the short carbon fibers in a molten matrix can be effectively improved, and the mechanical property of the carbon fiber reinforced 3D printing wire rod can be effectively ensured; the composite treatment agent can effectively enhance the surface modification treatment effect on the short carbon fibers and the continuous carbon fibers, so that the combination effect of the short carbon fibers and the continuous carbon fibers with the thermoplastic resin is better; nickel hydroxide and polydopamine modification can fill the defects of the short carbon fibers, the interface bonding state of the short carbon fibers and the thermoplastic resin is improved, correspondingly, the deformation resistance is higher during external force loading, and the interlaminar shear strength can be improved to different degrees.

The invention discloses an electrolyte containing multiple cations, an aqueous zinc ion battery and a preparation method, the electrolyte comprises a solvent and an electrolyte, and the electrolyte comprises a zinc salt, a manganese salt, a copper salt and an indium salt. According to the electrolyte, the stability of a zinc anode in an acid medium is remarkably improved, the cycle life and the capacity stability of a battery are improved, the performance and the service life of the battery in a challenging electrochemical environment are improved, and development of a next-generation energy storage system is facilitated; the aqueous zinc ion battery disclosed by the invention has excellent cycle life and capacity stability, and the initial capacity of 84.9% is still maintained after 200 times of circulation under the condition of 1mA / cm < 2 >, which is far better than that of an aqueous zinc ion battery adopting a conventional electrolyte.

The invention discloses aztreonam microspheres as well as a preparation method and application thereof. The microsphere is an inhalation preparation and can be effectively deposited in the lung, so that the slow release of the medicine is realized. According to the aztreonam microspheres, aztreonam and cinnamyl aldehyde are synthesized into a small molecule drug, and the small molecule drug is self-assembled into the microspheres. The preparation method comprises the following steps: (1) placing aztreonam AZT and cinnamyl aldehyde CA in a glass bottle according to a molar ratio of 3: 2, adding dimethyl sulfoxide DMSO, stirring and dissolving, and stirring and reacting at room temperature for 5-7 hours; (2) dialyzing the reacted solution in a dialysis bag, removing DMSO and unreacted small molecules, and obtaining dialysate after 48 hours; (3) performing freeze drying to obtain yellow powder of cinnamyl aldehyde-aztreonam CAT; and (4) weighing the CAT powder, dissolving the CAT powder in deionized water, and shaking to dissolve the CAT powder to obtain the aztreonam microspheres. The microspheres are suitable for treatment of pulmonary infections, in particular for local drug delivery and sustained release control.

A consumer product composition comprises a non-porous dissolvable solid structure comprising from about 30% to about 95%, by weight of the consumer product composition, of a carrier material, and from about 5% to about 50%, by weight of the consumer product composition, of a hydrophobic conditioning agent disposed within the carrier material of the non-porous dissolvable solid structure. The carrier material comprises a polyethylene glycol material, or mixtures thereof, having a molecular weight of from about 200 to about 50,000. The hydrophobic conditioning agent is selected from the group consisting of silicone materials, organic conditioning oils, hydrocarbon oils, fatty esters, metathesized unsaturated polyol esters, silane-modified oils, and mixtures thereof. Preferred products are shampoos, hair conditioners, laundry detergents and fabric softeners. Preferably the conditioning agent comprises a silicone or polyisobutene. The conditioning agent is preferably disposed in the carrier as particles having a mean particle size of 2 to 2000 microns. A method of treating a surface comprises dissolving the consumer product composition in an aqueous solution to form an aqueous treatment liquor and contacting the surface with the liquor.

This invention discloses a compound traditional Chinese medicine powder inhaler for respiratory tract infections and its preparation method, relating to the field of pharmaceutical formulation technology. The compound traditional Chinese medicine powder inhaler for respiratory tract infections is composed of polysaccharide composite gel microspheres, forsythia, scutellaria, honeysuckle, and isatis root. The polysaccharide composite gel microspheres are composed of seaweed sulfated polysaccharide, lentinan, calcium chloride, and curcumin. Seaweed sulfated polysaccharide, lentinan, curcumin, and calcium chloride cross-link to form a three-dimensional network spherical structure, improving the particle morphology and flowability of the micropowder. Furthermore, due to its good hygroscopic and moisturizing properties, it competitively reduces the moisture absorption of the micropowder, preventing aggregation and further improving flowability. In addition, the gel microspheres have excellent adhesion, adhering to the infection site after entering the respiratory tract, reducing expulsion losses due to respiration, maintaining an effective drug concentration at the infection site, and improving therapeutic efficacy.

This invention discloses a fluidized bed hydrotreating catalyst, its preparation method, and its application. The hydrotreating catalyst includes a hydrotreating active metal component, a support, and optional auxiliary phosphorus. The support is a carbon-containing alumina composite support. The preparation method includes the following steps: (1) spheroidizing a first pseudoboehmite powder to obtain a first support precursor; (2) treating an aqueous solution of the first support precursor, an additive, and an organic polymer B to obtain a second support precursor; (3) treating the second support precursor, the second pseudoboehmite powder, and an acidic solution to obtain a third support precursor; (4) subjecting the third support precursor to low-temperature heat treatment to obtain a fourth support precursor; (5) mixing the fourth support precursor with an auxiliary solution, drying, and calcining to obtain an auxiliary-modified carbon-containing alumina composite support; (6) introducing a hydrotreating active metal component onto the composite support, followed by drying and calcining to obtain the fluidized bed hydrotreating catalyst.

The invention provides a method for preparing an Al-Al2O3-TPU (Thermoplastic Polyurethane) mixed corrosion-resistant coating through low-pressure cold spraying, which comprises the following steps: carrying out surface treatment on a base material, and sequentially grinding, polishing, cleaning, drying and sandblasting to obtain a base material to be sprayed; the preparation method comprises the following steps: mechanically mixing Al powder, Al2O3 ceramic particles and thermoplastic polyurethane (TPU) powder to obtain cold spraying prefabricated powder; and the cold spraying prefabricated powder is subjected to low-pressure cold spraying to a to-be-sprayed base material, after the coating is cooled and cured, polishing and correction are conducted, and the Al-Al2O3-TPU mixed corrosion-resistant coating is obtained. The prepared coating is good in compactness and uniformity, has good mechanical performance and corrosion resistance, can be applied to the ocean engineering environment and can resist seawater scouring and corrosion.

The invention relates to a device and a process method for preventing a conductive roller from electroplating metal. The device comprises an electroplating bath body, and a front conductive roller assembly and a rear conductive roller assembly are arranged in the electroplating bath body in a mirroring manner; each of the front conductive roller assembly and the rear conductive roller assembly is at least provided with a positioning roller completely immersed in the electroplating liquid and a conductive roller component arranged above the electroplating bath body, and is in contact with the roller surfaces of the conductive roller components and the positioning rollers in the front conductive roller assembly and the rear conductive roller assembly in sequence through coating raw materials; the coating raw material also passes through a cleaning device between the rear conductive roller and the positioning roller; an electroplating anode is further arranged in the electroplating bath body and at least provided with an upper anode plate and a lower anode plate, and coating raw materials connected between the positioning rollers in the front conductive roller assembly and the positioning rollers in the rear conductive roller assembly pass through the space between the upper anode plate and the lower anode plate. Conductive roller components in the front conductive roller assembly and the rear conductive roller assembly are connected to a power supply cathode, and the lower anode plate and the upper anode plate are connected to a power supply anode.

This invention provides a bipolar electrode and a bipolar all-solid-state battery. The bipolar electrode comprises a positive electrode film, a current collector, a bulk material layer, and a carbon material layer. Through the design of the carbonaceous framework and nucleating agent in the bulk material layer, efficient and dense lithium metal deposition is achieved under high voltage conditions. The carbon material layer significantly improves the interfacial contact between the bulk material layer and the all-solid-state electrolyte, reduces interfacial resistance, and improves the deposition and extraction efficiency of lithium metal in the bulk material layer. Furthermore, the carbon material layer provides storage space for lithium metal deposited from the positive electrode, mitigating volume changes during lithium metal deposition in the bulk material layer and improving the stability of the bipolar electrode. The bipolar all-solid-state battery fabricated using the bipolar electrode exhibits high rate capability and long lifespan.

The application relates to the technical field of electroplating, and discloses a chromium electroplating process for improving the hardness of a connector terminal, which comprises the following steps: performing surface pretreatment on the connector terminal, removing surface impurities through ultrasonic cleaning and micro-etching treatment; performing heating treatment on the connector terminal; performing electroplating treatment on the connector terminal by using an electroplating solution comprising trivalent chromium salt, boron nitride nanoparticles, ferroferric oxide nanoparticles, nickel ions, sodium dichromate and chromium alloy additives, so as to form a chromium plating layer; performing passivation treatment on the plating layer; performing low-temperature treatment on the plating layer; and spraying a protective layer on the chromium plating layer. Through the trivalent chromium salt and the sodium dichromate, the trivalent chromium salt is used to reduce hexavalent chromium ions into trivalent chromium, the toxicity of the hexavalent chromium is reduced, the sodium dichromate is used to provide a stable chromium source, the deposition of chromium elements in the electroplating process is ensured, the pollution of hexavalent chromium to the environment and the harm of hexavalent chromium to the health of operators are solved, and the environmental protection and safety of the electroplating process are improved.

The invention belongs to the technical field of biomedicine, and particularly relates to a bionic T cell secreting type engineering bacterium lung targeted delivery system based on respiratory tract atomization and a construction method and application. The delivery system comprises engineering bacteria and a coated bionic biological membrane, the coated bionic biological membrane is a T cell membrane, and the engineering bacteria can secrete IL-12. The delivery system disclosed by the invention can realize intelligent, precise, visual and non-invasive efficient delivery of exogenous engineering bacteria drugs; by utilizing a gradient freeze-drying technology and an advanced aerosol inhalation technology, local delivery of an exogenous engineering bacterium drug in a host lung is realized, and focus targeted colonization of the engineering bacterium drug is realized; by utilizing an accurate cell membrane coating technology, monitoring and killing of immune cells are reduced, and the colonization efficiency of engineering bacteria is improved; and an engineering bacterium secretion system after biological modification and optimization is synthesized, so that the space-time accuracy of immune regulation of an exogenous engineering bacterium medicine can be further realized in a synergistic manner.

This invention discloses a high-adhesion, high-temperature resistant composite coating and its preparation method, belonging to the field of surface thin film preparation technology. The method includes: micro-machining and etching a substrate material to form a periodic pattern on the substrate material surface; sandblasting; sputtering a tetrahedral amorphous carbon transition layer film on the substrate material surface; and continuing chemical vapor deposition to deposit a diamond protective film, thereby obtaining a high-adhesion, high-temperature resistant composite coating on the substrate material surface. This method can improve the nucleation rate of diamond on the substrate material and increase the bonding force between the diamond protective film and the substrate material. The tetrahedral amorphous carbon film can be bonded to different materials, such as metals, plastics, and inorganic non-metals, without the serious stress problem during deposition. Using tetrahedral amorphous carbon as a transition layer for the substrate material can increase the stability of diamond on the substrate material and effectively protect the substrate material's anti-oxidation and anti-corrosion properties at high temperatures.

The present invention specifically relates to an environmentally friendly low-tin tin-plated plate and a manufacturing method thereof, and belongs to the technical field of alloy materials. The low-tin tin-plated plate comprises a substrate, a Fe-Sn alloy layer, a pure tin layer, a passivation film and an oil film in sequence. The tin content of the Fe-Sn alloy layer is 0.4 to 0.6 g / m 2 The alloy layer is uniform and dense, the grains are columnar, and the sum of the orientation degrees of FeSn2 (211) and FeSn2 (213) in the alloy layer is 2.5~3.0; the tin content of the pure tin layer is 0.5~0.7g / m 2 , the sum of the crystal orientation degrees of Sn(101) and Sn(200) is 2.2~2.5. The manufacturing method is based on an environmentally friendly methanesulfonic acid (MSA) electroplating tinning process and a low chromium content passivation process flow to solve the problem that low-tin tin-plated plates have poor corrosion resistance and are prone to pitting. The present invention designs the substrate composition and combines the process design of the key processes of "annealing, leveling, pickling, pre-wetting, electroplating, fluxing, soft melting, passivation, and oiling" to manufacture low-tin tin-plated plates with excellent corrosion resistance.

The invention belongs to the field of silicon negative electrode battery materials, and particularly discloses a preparation method of an MSe / Si / C composite material, which comprises the following steps: mixing M-MOF and a selenium source for roasting reaction to obtain an MSe / C product; carrying out vapor deposition treatment on the MSe / C in a silicon source atmosphere to prepare an MSe / Si / C composite material; m is a transition metal element; the M-MOF is a metal frame material of transition metal elements. The invention also provides the material prepared by the preparation method and an application of the material in a battery. The process can induce uniform and effective deposition of silicon, facilitates in-situ construction of electron and ion conduction networks of M and Li2Se in the charge-discharge stage, and facilitates improvement of the low-temperature fast charge performance of the material.

The application provides a metal pipe inner wall rust inhibitor AI spraying track planning method and system based on visual guidance, relates to the field of industrial automatic spraying technology, and the method comprises the following steps: acquiring original sequence images of a metal pipe inner wall collected by an endoscopic visual probe, performing optical distortion correction and multi-view point cloud space registration on the original sequence images to obtain an inner wall three-dimensional topological grid; extracting node coordinates and surface normal vectors of the inner wall three-dimensional topological grid, and calculating local curvature gradient distribution of the node coordinates and the surface normal vectors; performing threshold segmentation and feature boundary extraction on the local curvature gradient distribution to obtain a geometric feature partition graph of the spatial range of the thread groove bottom, the windward surface of the reinforcing rib and the weld reinforcement area. The application improves the uniformity of the coating and the protection reliability.

The present invention relates to a post-high-temperature modification profiling tool and method for a ceramic-based composite nozzle component, in order to solve the technical problem that the C / SiC ceramic-based composite nozzle produces radial deformation after high-temperature modification treatment, resulting in the dimensional index not meeting the design requirements. The tool comprises a base plate, a positioning ring and a plurality of component fixing devices arranged on the base plate, a plurality of equal-height support seats uniformly distributed circumferentially with the center of the positioning ring as the center, and a reference ring arranged at the upper end of the support seat; the side wall of the reference ring is uniformly penetrated with a plurality of top screws along the circumferential direction. The method comprises: assembling the tool; determining the maximum and minimum diameter positions; adjusting the top screws to an outer diameter size difference of ≤0.2mm, recording the current maximum diameter D1 and minimum diameter D2; continuing to adjust the top screws to D1-(0.5-1.0)mm at the maximum diameter and D2+(0.5-1.0)mm at the minimum diameter; removing the tool and performing deposition.

The invention provides a recoverable barite blocking remover, a recovery method and application. Relates to the field of petroleum drilling shaft reservoir protection. Comprising the following raw materials in parts by weight: 4-25.5 parts of a chelating agent, 2-10 parts of a dissolution promoter, 1-5 parts of a surfactant, 5-15 parts of a scale inhibitor, 1-10 parts of alkali and 35-86 parts of water, the chelating agent comprises one or more of 1, 2-cyclohexanediamine tetraacetic acid, ethylenediamine tetraacetic acid or diethylene pentaacetic acid; the scale inhibitor comprises polyaspartic acid and / or polyepoxysuccinic acid; the surfactant comprises alkyl polyglucoside. The recoverable barite blocking remover provided by the invention not only has high corrosion amount, but also can be efficiently recovered, the corrosion amount is 1.96-1.98 g / 100ml, and the highest recovery rate can reach 95-98%.

This utility model relates to the field of solar cell manufacturing technology, and in particular to a flow equalization plate for improving the uniformity of polysilicon deposition. The plate includes a flow equalization plate, a flow guide plate, and an installation mechanism. The surface of the flow equalization plate has flow equalization holes for improving the flow rate of the reactant gas. A flow guide plate is located behind the flow equalization plate to guide the reactant gas through it. Installation mechanisms for mounting at the front end of the furnace opening boat are located on both sides of the flow equalization plate and the flow guide plate. This utility model achieves effective dispersion of silane gas through the flow equalization plate and flow equalization holes, avoiding concentrated gas impact and resulting in more uniform polysilicon deposition. This solves the problem of poor polysilicon uniformity at the furnace opening in traditional processes.

The invention provides a lithium-philic framework material as well as a preparation method and application thereof. The lithium-loving framework material comprises a porous conductive framework material and a zinc coating layer, wherein the zinc coating layer is coated on the partial or whole surface of the porous conductive framework material. The preparation method comprises the following steps: placing a porous conductive framework material in a solution containing zinc ions, electroplating, and forming a zinc coating layer on the surface of the porous conductive framework material to obtain the lithium-loving framework material. The lithium-loving framework material provided by the invention can reduce the heterogeneous nucleation energy barrier of the metal lithium, and has a good effect of inducing the metal lithium to uniformly deposit; the composite material can be used in a lithium metal battery using a metal lithium negative electrode, and the cycle performance of the lithium metal battery can be remarkably improved.

The application discloses a kind of nutritional composition for bone joint recovery after exercise and preparation method thereof, including the following raw materials by weight parts: collagen peptide 25-35 parts, calcium glycinate 10-18 parts, free glycine 5-10 parts, L-lysine 2-5 parts, taurine 4-6 parts, magnesium citrate 3-5 parts, vitamin D3 0.0001-0.0003 parts, vitamin K2 0.0005-0.001 parts, erythritol 8-12 parts, malt dextrin 20-30 parts, silicon dioxide 0.1-0.5 parts;The application breaks through the single function limitation of existing product, simultaneously realizes the effect of cartilage repair, calcium supplement, calcium absorption promotion, calcium bone target, nerve muscle relaxation, forms integrated recovery scheme after exercise, and the repair effect is more comprehensive and systematic;Perfect calcium metabolism complete regulation channel, through the synergistic effect of vitamin D3 and vitamin K2, realize calcium ion efficient absorption and accurate deposition, greatly improve calcium utilization rate.

The utility model provides plasma enhanced atomic layer deposition equipment. The plasma enhanced atomic layer deposition equipment comprises a plasma tube, an electrode assembly and a gas input pipeline, the plasma tube comprises N plasma branch tubes, the N plasma branch tubes are sequentially arranged in the height direction of the plasma enhanced atomic layer deposition equipment, and N is a positive integer greater than or equal to 2; the number of the electrode assemblies is N, each electrode assembly comprises a positive electrode and a negative electrode, the plasma branch pipes are arranged between the positive electrodes and the negative electrodes, and the N electrode assemblies and the N plasma branch pipes are arranged in a one-to-one correspondence mode; n groups of gas input pipelines are arranged, and the N groups of gas input pipelines and the N plasma branch pipes are arranged in a one-to-one correspondence manner. According to the utility model, the ionization degrees of precursors in different plasma branch pipes can be respectively controlled, so that sediment films on different wafers can reach the same thickness, and the uniformity of the wafers in the same batch is improved.

The utility model discloses a bending machine with lighting function belongs to bending machine technical field, including bending machine body, the bending machine body is installed with the cutter, the front fixedly connected with the lighting device of bending machine body, the one side fixedly connected with the clamping device of convenient angle regulation of lighting device. In the utility model, when needing lighting assistance, operator only needs to rotate three -range regulator to open the lamps and lanterns, and adjusts the lighting angle through the rotation shell, and the shell drives the sliding bar to slide in the adjusting groove, simultaneously drives the lamps and lanterns to rotate to the suitable angle, then, rotates the rotating plate, drives the thimble to rotate along the threaded rod, when the rotating plate reaches the predetermined position, the shell and lamps and lanterns are locked firmly, and the structure can provide sufficient light source, enhances the visibility of work area, effectively reduces the shadow interference, ensures that the bending line, the alignment position and the scale mark are clearly visible, thereby improves the bending precision and reduces the error.

A method of manufacturing a metal compound film of the present invention is a method of manufacturing a metal compound film in which a compound generating liquid containing, as a solute component, a substance that generates a metal compound is applied to a substrate (11) having an opening portion (12) on a surface and sintered to form a metal compound film(15), including: a pre-wet liquid application step S01 of applying a pre-wet liquid (21) to the surface of the substrate (11), and filling the opening portion (12) with the pre-wet liquid (21), the pre-wet liquid having better wettability to the substrate than the compound generating liquid; a compound generating liquid application step S02 of applying the compound generating liquid to stack the compound generating liquid on the pre-wet liquid (21) on the substrate (11), and diffusing the solute component of the compound generating liquid in the pre-wet liquid (21); and a sintering step S04 of sintering the applied compound generating liquid to form the metal compound film (15).

The present invention relates to a soap bar composition that provides enhanced delivery of water-soluble skin benefit agents so that the desired benefit agent activity is observed for a long time after washing. This is achieved by absorbing / coating the benefit agent onto a specific clay and then further coating with a hydrophobic material selected from wax or petrolatum.

A separator for a cleaning device, the separator comprising: an inlet for receiving a flow of fluid containing entrained debris into the separator; an outlet for discharging the filtered fluid stream from the separator, the outlet being longitudinally spaced from the inlet; an inlet conduit extending within the interior volume of the separator, the inlet conduit connected to the inlet to receive the fluid flow; an outlet volume connected to the outlet; and a longitudinally extending boundary wall disposed between the inlet conduit and the outlet volume. The boundary wall includes a filter screen configured to retain debris in the inlet conduit while allowing filtered fluid to flow from the inlet conduit to the outlet volume.

The invention discloses a preparation method of an X-ray fluorescent screen and the X-ray fluorescent screen. The preparation method comprises the following steps: S1, pretreatment: cleaning and drying a micro-channel structural body; the micro-channel structural body is provided with a plurality of through micro-channels, and the micro-channel structural body is made of glass; s2, micro-channel film plating: plating a reflecting film on the side wall of the micro-channel; s3, preparing turbid liquid: mixing fluorescent material particles, a carrier solvent and a surfactant, and dispersing to obtain the turbid liquid; s4, filling the micro-channel; s5, repeated filling is carried out; s6, post-processing: carrying out surface cleaning and packaging on the micro-channel structure body; the X-ray fluorescent screen is prepared by adopting the preparation method. The X-ray fluorescent screen comprises a micro-channel structural body, the micro-channel structural body is provided with a plurality of through micro-channels arranged in an array, and the micro-channels are filled with fluorescent material particles. The glass micro-channel structural body is filled with the fluorescent material particles, so that the resolution ratio and the fluorescence transmission efficiency of the X-ray fluorescent screen are improved.

The invention provides an ALD precursor coating device and a control method thereof, and relates to the technical field of control. In the application, one end of the RC is connected with the first MFC through the first main pipeline; a first branch pipeline, a second branch pipeline and a third branch pipeline are sequentially arranged on the first main pipeline in the direction from the first MFC to the RC, the precursor supply device is connected with the first main pipeline through the first branch pipeline, the sucking pump is connected with the first main pipeline through the second branch pipeline, and the second MFC is connected with the first main pipeline through the third branch pipeline. The second branch pipeline and the third branch pipeline are connected through a fourth branch pipeline, and a first valve on the fourth branch pipeline is used for opening the fourth branch pipeline when the precursor supply equipment starts to supply the precursor to the RC and closing the fourth branch pipeline when the precursor supply equipment stops supplying the precursor to the RC; and the other end of the RC is connected with the second branch pipeline through the second main pipeline, so that the utilization rate of the precursor is improved.