206results about How to "Precise thickness control" patented technology

The invention provides a packaging substrate structure and a preparation method thereof. The preparation method comprises the following steps: providing a core plate layer; forming a multilayer substrate adding layer covering two opposite surfaces of the core plate layer and electrically connected with the core plate layer; providing an interconnection structure layer which comprises a bottom circuit layer, a bottom dielectric layer and a middle interconnection layer; pressing the interconnection structure layer in a preset area of the substrate adding layer in an inverted manner to obtain a required substrate structure layer; solder mask layers are formed on the two opposite faces of the substrate structure layer, contact holes are formed in the preset positions of the solder mask layers, and at least one contact hole exposes the conductive part of the interconnection structure layer. According to the invention, packaging with finer lines, lighter and lighter weight and higher line density can be realized, and signal transmission loss can be substantially reduced at the same time. Besides, the packaging substrate structure has high design flexibility, and the thickness and the circuit density of the interconnection structure layer can be accurately controlled by adjusting the thickness, the number of layers and the circuit design of each dielectric layer and each circuit layer so as to meet specific packaging requirements.

The invention provides a medical packaging material and a preparation method thereof.The preparation method comprises the steps that S100, polypropylene, maleic anhydride grafted co-polypropylene, peroxide and filler are mixed, then melt extrusion and two-way stretching are conducted, and a printing layer is obtained; s200, respectively preparing a barrier layer and a heat sealing layer; and S300, the heat sealing layer, the blocking layer and the printing layer are sequentially stacked from inside to outside, and the packaging material is obtained. Through the preparation method of the packaging material, the prepared packaging material has excellent barrier property and antibacterial property while resisting high temperature, and can meet the requirements of the medical field.

The invention provides a preparation method of a Cu-based catalyst for acetalation reaction, which comprises the following steps: depositing Pt on the surface of a pretreated carbon carrier through an atomic layer deposition method, depositing a metal oxide CuOx on the surface of the metal Pt, and performing high-temperature reduction and medium-temperature oxidation treatment to obtain the Cu-based catalyst. According to the method, the size of Pt particles and the thickness of CuOx can be accurately controlled on the atomic scale. The catalyst is applied to the acetalation reaction of aldol, the size of Pt particles and the thickness of CuOx can be accurately controlled on the atomic scale in the hydrogen atmosphere, the Pt-coated CuOx core-shell structure catalyst with cuprous as the main component is obtained on the surface of the carbon carrier, and the catalyst has the catalytic performance of high acetal yield due to the stable cuprous structure. The preparation of the catalyst is simple and controllable, and the greenization of the aldol acetalation reaction process and the high efficiency of the product are realized through the catalyst.

The invention discloses coating and shaping equipment for a high-breathability PTFE (Polytetrafluoroethylene) waterproof breathable film, which comprises a rack, a base cloth supply device arranged on the rack, a coating device arranged on the rack and used for coating a liquid raw material on the base cloth, a first coagulating basin arranged on the rack and below the coating device, and a cloth in-pool guide device arranged on the rack and at the outlet of the coating device, the cloth in-pool guiding device comprises a plurality of height-adjustable material guiding frames arranged on the machine frame side by side and a water inlet roller guiding mechanism, input material guiding rollers are arranged on the material guiding frames, a plurality of cloth tensioning transition rollers are arranged in the first coagulating tank in the feeding direction, and the connecting line of all the cloth tensioning transition rollers is in a downwards-protruding arc shape. A water outlet guide roller is arranged at one end, far away from the water inlet roller, of the first coagulating tank; a plurality of heaters and a plurality of temperature sensors are arranged in the first coagulating tank; a tension control device for controlling the tension force of the cloth is arranged on the rack, and a traction pressing vehicle for sending out the cloth is arranged on the discharging side of the tension control device on the rack.

The invention provides a preparation method of a lithium-supplemented negative plate, the lithium-supplemented negative plate, a lithium ion battery and an electric device. According to the preparation method, rolling compounding is carried out by controlling the linear speed of a compression roller close to a lithium foil in a roller pair to be always greater than the linear speed of a compression roller close to the negative plate. The linear speed of the compression roller affects the actual tape running speed of the lithium foil and the negative pole piece, so that the lithium foil and the negative pole piece generate speed difference in a roller gap, at the moment, opposite tangential force is provided for the surface of the lithium foil by the roller pair, and the lithium foil can be thinned under the action of the tangential force, so that the lithium foil and the negative pole piece can be compounded, and the lithium foil and the negative pole piece can be thinned. And the lithium foil with the target lithium supplementing thickness can be obtained. According to the preparation method, the limitation on the thickness of the supplied material of the lithium foil is reduced, the lithium supplement of the lithium foil with the thickness of 0.1-5 microns in the lithium supplement negative plate can be realized through one-time processing and forming, the accuracy of the pre-lithium amount is improved, and the method does not need to be protected by a base material, so that the adhesion phenomenon is avoided, the technological process is saved, and the production cost is effectively reduced.

The invention discloses a chlorine-resistant polyamide composite nanofiltration membrane and a preparation method thereof. The composite nanofiltration membrane is composed of a polysulfone-based membrane, and a catechol intermediate layer and a polyamide desalination layer which are sequentially arranged on the polysulfone-based membrane, wherein the catechol middle layer comprises a plurality of catechol self-polymerization layers, and catechol is subjected to oxidation self-polymerization and then is constructed on the polysulfone base membrane layer by layer to obtain the catechol self-polymerization layers; and the polyamide desalination layer is constructed on the catechol intermediate layer through an interfacial polymerization reaction. The chlorine-resistant polyamide composite nanofiltration membrane comprises a polysulfone base membrane, a catechol middle layer and a polyamide desalination layer, the catechol self-polymerization middle layer is formed through a layer-by-layer construction technology, certain chlorine resistance is provided, meanwhile, the possibility that the middle layer falls off is reduced, and the stability of the composite nanofiltration membrane is enhanced; the tannic acid is added into a water-phase solution, so that the performance of the polyamide composite nanofiltration membrane is adjusted, and the polyamide composite nanofiltration membrane is endowed with relatively high chlorine resistance.

The invention relates to a method for improving the binding force of a neodymium-iron-boron magnet coating and application. The method comprises the steps that rare earth hydroxide suspension liquid is prepared; spraying double surfaces of the neodymium-iron-boron magnet; and carrying out grain boundary thermal diffusion treatment. According to the method, the rare earth hydroxide is pyrolyzed into the rare earth oxide to be deposited on the surface of the sintered neodymium-iron-boron magnet, the diffusion depth of heavy rare earth elements in the magnet can be effectively increased, and the components and thickness of the coating are accurately controlled; the cost of preparing the rare earth oxide from the rare earth hydroxide is saved, the preparation process of the diffusion source is simplified, and the spraying efficiency is high; the obtained coating is high in quality and low in porosity, and the bonding strength of a diffusion source and a magnet interface is high; subsequent grain boundary diffusion can be promoted, and a new thought is provided for industrial application of the grain boundary diffusion technology.

The invention discloses a method for quickly preparing large-size elastic nanofiber aerogel without freeze-drying and with low cost. The method comprises the following steps: dispersing nanofibers and polysaccharide macromolecules in water to form a dispersion liquid; carrying out solidification treatment on the dispersion liquid to form a solidified block; putting the solidified block into an ethanol solution of metal cation salt, and carrying out coordination reaction to form wet gel; and removing the solvent in the aerogel under a normal pressure condition to obtain the nanofiber aerogel. The three-dimensional nanofiber aerogel is rapidly prepared on a large scale through freeze-drying-free ice dissolution induced coordination reaction and normal-pressure drying for the first time, the three-dimensional nanofiber aerogel is composed of fibers and a macromolecular coordination cross-linked network, the fibers are firmly bonded through the macromolecular coordination network, and the three-dimensional nanofiber aerogel has an interconnected pore structure and a wide adjustable range of the pore structure and can be used for preparing the three-dimensional nanofiber aerogel. The fiber aerogel shows good mechanical properties, sound absorption, noise reduction, heat insulation and warmth retention properties, oil absorption and wave absorption properties, and has a wide application prospect.

The invention discloses a fiber / powder composite VIP core material based on a DLP technology and a preparation method and application thereof, and belongs to the technical field of vacuum insulation panel manufacturing. The preparation method of the core material comprises the following steps: (1) uniformly stirring and mixing glass fibers, gas-phase SiO2 powder, light-cured resin, a dispersing agent and a photoinitiator to obtain a printing material; (2) printing a fiber / powder composite VIP core material by adopting the printing material in the step (1) according to a three-dimensional model of a preset structure, drying and cooling; and (3) putting the core material in the step (2) into a barrier film, adding a getter, and packaging to obtain the product. The method has the beneficial effects that solid-phase heat conduction can be effectively reduced through elaborately optimized material composition and structural design, particularly fiber directional layered arrangement which is beneficial to realization based on a DLP printer, and fiber pores can be further filled after gas-phase SiO2 is compounded. The heat conductivity of the VIP can be reduced to 0.0025-0.0035 W / (m.K) by combining the synergistic effect of all the components, and is remarkably improved compared with that of traditional VIP.

The invention discloses a stripping type multi-material additive material powder laying system and method based on a mesh screen, the powder laying system comprises a forming chamber and a powder laying device, a forming platform and a moving platform are arranged in the forming chamber, the powder laying device is installed on the moving platform, and the powder laying device comprises a powder supply assembly, a powder suction assembly, a powder scraping assembly, a powder storage assembly and a powder stripping assembly. The powder suction assembly comprises a rotary mesh screen and a vacuum pump, when powder falls off from the powder supply assembly, powder particles can be adsorbed to the periphery of the mesh screen under the suction action of the vacuum pump, and in the process that the mesh screen rotates and the moving platform moves, the powder scraping assembly scrapes part of the powder particles to the powder storage assembly so as to control the thickness of the powder; the powder stripping assembly is used for stripping powder on the periphery of the mesh screen to the forming platform for powder laying, finally, the material types and the distribution form of the powder in the printing plane are accurately adjusted, powder scraping and powder stripping can be conducted at the same time while powder supply is conducted, and therefore the printing speed can be greatly increased, and the production efficiency is improved.

The utility model relates to the technical field of building components, in particular to a horse stool supporting assembly which accurately controls the total thickness of a raft foundation and the thickness of a protective layer of an upper steel bar. Comprising two supporting plates which are oppositely arranged, the top ends of the two supporting plates are connected through a connecting plate, a mounting plate is arranged above the connecting plate, first guiding pieces are arranged at the two ends of the mounting plate, guiding plates fixed to the connecting plate are arranged on the two sides of the mounting plate, and second guiding pieces are vertically arranged on the guiding plates; a telescopic assembly for driving the mounting plate to move up and down is arranged on the connecting plate, a mounting seat is arranged above the mounting plate, and a positioning cylinder is fixedly connected to the mounting seat. According to the raft foundation, the mounting plate is arranged above the connecting plate, and the driving assembly is used for driving the mounting plate to move up and down, so that the height of the positioning cylinder can be adjusted, the distance between the upper reinforcing steel bar and the lower raft is equal after the upper reinforcing steel bar is mounted in the positioning cylinder, and the total thickness of the raft foundation and the thickness of a protective layer of the upper reinforcing steel bar are accurately controlled.

The invention relates to a preparation method of homogeneous graphite and the homogeneous graphite, and belongs to the technical field of graphite material preparation. The preparation method comprises the following steps: taking raw material fine powder of calcined pitch coke or petroleum coke as aggregate; the raw material fine powder is divided into n parts of fine powder with different weights, the n parts of fine powder are respectively mixed and kneaded with asphalt with different softening points and different amounts to obtain n parts of paste, one part of the paste with the largest weight part of the raw material fine powder is ground into paste fine powder with the average particle size of 10-100 microns, and the other n-1 parts of the paste are subjected to heat preservation; forming the paste fine powder to obtain a pre-pressed green body, sequentially coating (n-1) layers of paste on the surface of the pre-pressed green body, and performing isostatic pressing to obtain a primary green body; and carrying out secondary forming, and carrying out post-treatment to obtain a homogeneous graphite product. According to the method, the surfaces of the pre-pressed blanks are coated with different types of paste materials in a coating mode, so that the green bodies have certain differences from inside to outside, the inside and outside differences caused by follow-up processing to the green bodies are counteracted, and the whole graphite product has the characteristic of uniformity.

The invention belongs to the technical field of metal materials and machining treatment thereof, and discloses a double glow plasma nitriding treatment method for the surface of the inner wall of a titanium alloy circular tube, a TC4 circular tube with a nitriding layer on the inner wall is prepared, the hardness and the wear resistance of the inner wall of the TC4 titanium alloy circular tube are remarkably improved, the service life of parts is prolonged, and the service life of the parts is prolonged. And the urgent demand of the modern industry on high-wear-resistance parts is met. Through cleaning, drying, vacuumizing, double glow plasma nitriding and furnace cooling and through accurate control of parameters such as the heating rate, the gas proportion and the nitriding time, accurate regulation and control of the thickness and performance of a nitriding layer are achieved, and the stability and repeatability of the treatment effect are ensured. A prepared TC4 round tube sample is detected, the metallographic structure of the nitriding layer on the inner wall of the TC4 round tube sample is tightly combined with a matrix, the falling risk is small, the layer thickness can reach 17 + / -1 m, and the average hardness reaches 713.04 HV and can reach 2.2 times of the hardness of the matrix.

The invention relates to the technical field of optical coating, in particular to a partitioned coating method for a spatial extreme ultraviolet band reflector, which aims to coat different or same films on more than two or more regions at certain intervals. The method comprises the following steps: firstly, designing more than two or more EUV wave band multilayer films, wherein the structures and the central wavelengths of the EUV multilayer films can be different; then designing an adjustable shielding coating tool which is in direct contact with the mirror surface of the reflecting mirror; the EUV wave band is plated on the surface of the cleaned reflecting mirror in a regional mode through an adjustable shielding film plating tool; and finally, testing the reflecting mirror after film coating. According to the invention, the boundary of the coating area is clear and has no shadow effect, and stray light crosstalk is reduced; and the film is good in film forming quality, small in film stress, excellent in optical performance, good in film firmness and high in space environment adaptability.

The invention belongs to the technical field of electrode materials, and particularly relates to an electrode foil, a preparation method thereof and an aluminum electrolytic capacitor, and the preparation method of the electrode foil comprises the steps: carrying out the formation of a corrosion foil, and forming an aluminum oxide film on the surface of the corrosion foil; forming a nano-porous silicon dioxide film on the surface of the aluminum oxide film to obtain an electrode foil with an aluminum oxide-silicon dioxide double-layer composite oxide film; and sequentially carrying out phosphating treatment and annealing treatment on the electrode foil. According to the preparation method, after the corrosion foil is subjected to formation treatment to form the Al2O3 film, the nano-porous SiO2 film is formed on the surface of the Al2O3 film, the SiO2 film is subjected to phosphating treatment to contain phosphorus elements, the phosphorus elements are uniformly diffused into the SiO2 film, a double-layer composite oxidation film with the Al2O3 inner layer and the SiO2 outer layer is obtained, and the specific volume, the hydration resistance and the corrosion resistance of the low-voltage electrode foil are improved.

The invention discloses a method for synthesizing a perovskite thin film with a continuous gradient band gap through thermal evaporation. The device comprises a thermal evaporation vacuum chamber, a substrate table, an evaporation source, a thermal evaporation vacuumizing module and a vacuum displacement module, the perovskite thin film with the band gap continuously and gradually changed is synthesized at a time under high vacuum by utilizing thermal evaporation equipment and a vacuum displacement motor, so that the proportion of Br and Cl is continuously increased, the proportion of Br and I is continuously reduced and the band gap is continuously narrowed from left to right on the whole evaporated thin film from one end to the other end.

The invention discloses a preparation method of a standardized sheet for a thermoelectric test of minerals or mineral materials and alloys, belongs to the technical field of mineralogy, material science and prospecting prediction, and establishes a preparation process of a universal mineral or mineral material and alloy thermoelectric sheet. Covering all semiconductor mineral types or mineral material types such as pyrite, magnetite, graphite and sintered ore; accurate thickness control is achieved through a double-face polishing-loading sheet supporting structure, in-situ testing of the thermoelectricity of minerals or mineral materials and alloys is achieved, and the testing precision is improved; by adopting a conductive adhesive-copper plate composite structure, the interface resistance is reduced, the supporting strength is met, and the requirement of eliminating detection interference is met; residual colloid is thoroughly removed through ultrasonic cleaning, and the insulation effect is avoided; according to the standardized sheet, the hollow aminated phenolic resin nanosphere is used as a conductive substrate and is used for bonding a sample and a copper plate, the contact resistance between the sample and an electrode can be greatly reduced, and the accuracy of test data is improved.

The present invention belongs to the technical field of PCB board manufacturing, and discloses a PCB board manufacturing method for preventing slot hole copper layer delamination and a PCB board, and the PCB board manufacturing method for preventing slot hole copper layer delamination comprises the following steps: after drilling a slot hole on the PCB board, the first baking plate, copper deposition, full-board electroplating and second baking plate are sequentially performed, wherein the baking plate temperature of the first baking plate and the second baking plate are both 145-155°C, and the baking plate time is both 4-5h; the copper layer thickness of the PTH slot hole wall after full-board electroplating is ≥12μm. The present invention can effectively reduce the stress of the slot hole by controlling the copper layer thickness of the PTH slot hole wall after full-board electroplating to 12μm, and then cooperates with the baking plate temperature and baking plate time control of the first baking plate and the second baking plate, and the three processes are combined to produce a synergistic effect, effectively improve the adhesion between the slot hole and the copper layer, prevent the copper layer from separating during the tin spraying process, and greatly reduce the probability of copper layer separation in the slot hole of the PCB board.

The utility model discloses a sheet thickness adjusting device of a plastic sheet machine, which relates to the technical field of sheet machines, solves the problems of low sheet thickness adjusting accuracy and poor production quality of the existing device, and adopts the following scheme that a fixed frame A is assembled on the top surface of a base. Through the arrangement of a telescopic air cylinder and a limiting rod, the telescopic air cylinder drives a fixing frame B to move downwards, the fixing frame B slides on the limiting rod, the moving stability of the fixing frame B is guaranteed, the distance between the fixing frame B and a fixing frame A is the distance between a lower adjusting roller and an upper adjusting roller, and the thickness of a sheet can be accurately controlled through scale line observation; and meanwhile, through the arrangement of supporting rods and scraping plates, the outer wall of the lower adjusting roller can be scraped by the two sets of scraping plates, the outer wall of the upper adjusting roller can be scraped by the two sets of scraping plates, raw materials are prevented from being adhered to the outer walls of the adjusting rollers, and the production effect and quality of the next set of sheets are guaranteed.

The invention relates to the technical field of coating film making equipment, in particular to a building waterproof coating film making device and application thereof.The building waterproof coating film making device comprises a bottom plate, a square mounting groove is formed in the bottom plate, and a scraper is arranged in cooperation with the mounting groove; the scraper comprises a pair of sliding rails which are symmetrically arranged, and the pair of sliding rails are connected with the two ends of the scraper in a sliding mode through sliding sleeves correspondingly. The sliding sleeve is connected with the scraper through a connecting piece, and an adjusting mechanism is arranged on the connecting piece. The height of the scraper can be accurately controlled to adjust the thickness of a coating film, the scraper is uniformly stressed, and the thickness of each part of the coating film can be consistent; through the adjustable base provided with the laser leveling mechanism, the bottom plate can be accurately controlled to keep horizontal, so that the coating film making quality is effectively improved, and the phenomenon of non-uniform coating is avoided.

The invention discloses a vacuum drying coating device for a vacuum sputtering continuous coating production line, and relates to the technical field of vacuum coating devices.The vacuum drying coating device comprises a vacuum chamber, a coating assembly and a coating turnover assembly are arranged in the vacuum chamber, and a plurality of drying lamps are connected to the inner wall of the vacuum chamber; according to the device, the air cylinder can be started, a push rod of the air cylinder stretches out and draws back to drive the rack to move, the rack is meshed with the gear, and the rotating rod, the second side plate, the connecting plate, the first side plate and the rotating shaft are sequentially driven, so that the cylindrical target material rotates around the axis of the rotating rod; therefore, the distance between the film-coating device and the to-be-coated plate on the conveying belt is Through the design, the lifting distance of the cylindrical target material can be accurately controlled and can be flexibly adjusted according to the thin film thickness requirement or the plate thickness; for example, the spacing can be reduced and the deposition speed can be accelerated during thick film production, and the spacing can be increased and the speed can be reduced during thin film production.

The invention relates to a silicon-based negative electrode material based on metal oxide coating and preparation and application thereof, and a preparation method of the material comprises the following steps: S1, putting a silicon-based material into a solvent for ultrasonic dispersion to obtain a uniform suspension; s2, adding a metal oxide precursor into the suspension obtained in S1, and carrying out hydrolysis or condensation reaction to generate a continuous metal oxide coating layer on the surface of the silicon-based material in situ; and S3, after the reaction is finished, centrifugally separating, washing and drying the obtained product to obtain the silicon-based negative electrode material, namely a target product. Compared with the prior art, the method provided by the invention is simple in process, low in cost and good in repeatability, and the obtained coated silicon material has excellent structural stability and electrochemical performance and has a wide application prospect in high-energy-density lithium ion batteries and all-solid-state batteries.

The present invention relates to an induction heating cladding device and method for hot-dip galvanizing or zinc alloy of steel wire, belonging to the technical field of metal material processing. The induction heating cladding device comprises an induction heating device, a pneumatic press and a mold, wherein a first channel is provided at the center of the mold, and a plurality of second channels are also provided in the mold, and the plurality of second channels are arranged circumferentially along the first channel, the pneumatic press is arranged at the entrance of the second channel, and the induction coil in the induction heating device is wound around the outer ring of the mold, and the end of the second channel is connected to the first channel. The steps of the method are as follows: 1. Select the particle size of the hot-dip material; 2. Adjust the pressure of the pneumatic press, and the ejected gas blows the hot-dip material into the cladding area; 3. Adjust the frequency of the induction heating device to clad the hot-dip material; 4. The zinc liquid is coated on the surface of the steel wire by the gas ejected by the pneumatic press. The present application can not only save energy, but also accurately control the thickness and uniformity of the zinc coating on the surface of the steel wire.

This invention discloses a continuous conductivity testing bench for lubricating grease and its testing method. The test bench includes a grease pump, a conductive base plate, a heating module, and an upper conductive plate. It can continuously measure the dynamic conductivity of the lubricating grease before and after breakdown and before and after blockage at a preset temperature, calculate the average conductivity during the continuous thickness change process, and conclude that the grease thickness is different when breakdown and blockage occur. It obtains the accurate values ​​of the grease thickness in the test area corresponding to each breakdown and blockage. In the blockage analysis, the volume of the grease to be injected into the test area is calculated by integration. Based on the instantaneous volume flow rate detected by the elliptical gear flow meter, the actual volume of the grease to be injected into the test area is calculated, and the flow rate of the grease pump is adjusted to ensure that the difference between the volume of the grease to be injected into the test area and the actual volume of the grease injected into the test area is within a preset range. This avoids the pressure changes caused by insufficient grease thickness or excessive grease affecting the test accuracy.

The invention provides a preparation parameter optimization method for preparing a polymer film by a spin-coating method. The method comprises the following steps: firstly, prefabricating a film sample and analyzing the correlation between the film thickness and polymer component physical properties and spin-coating parameters to obtain three parameters, namely a dissipation coefficient caused by a spin-coating process, the dispersion of the film thickness of the sample caused by an experimental environment and the deviation degree between the film thickness and an expected thickness; and analyzing and obtaining the optimal spin-coating time and spin-coating speed in the film preparation process according to the thickness value of the polymer film to be prepared and based on the three parameters. The spin-coating process is efficiently controlled and the spin-coating parameters are effectively set on the basis of basic physical attributes of polymer film components and film thickness information.

The invention discloses a method for synergistically optimizing carbon nano spiral aerogel through a carbon layer / zinc oxide and an obtained product and application of the carbon nano spiral aerogel. Firstly, zinc oxide is deposited on the surface of CNC aerogel through an atomic layer deposition method, and ZnO-coated CNC aerogel is obtained; then, the ZnO (at) CNC aerogel is soaked in a dimethyl imidazole methanol solution, and the ZIF-8 / ZnO (at) CNC aerogel is obtained. Finally, the ZIF-8 / ZnO (at) CNC aerogel is roasted in an inert environment, and the C / ZnO (at) CNC aerogel composite material is generated. The C / ZnO-coated CNC aerogel composite material is prepared through atomic layer deposition, an impregnation method and a chemical vapor deposition method, the process is simple, the amount of ZnO can be accurately controlled, and the composite material has good conductivity, electromagnetic wave absorption performance and photothermal conversion performance and has wide application value in the fields of photothermal conversion, electromagnetic wave absorption and the like.

This utility model relates to the field of post-printing processing technology, and more particularly to a UV ink fixing device for PVC anti-slip mats. This utility model provides such a UV ink fixing device for PVC anti-slip mats, including a body, guide blocks, a conveyor belt, a motor, a steel roller, a discharge device, magnet two, and magnet one, etc.; the guide blocks are installed inside the body, the conveyor belt is installed on the body, the motor is installed on one side of the body, the motor output shaft is connected to the drive roller shaft of the conveyor belt, the discharge device is movably installed on the body, the steel roller is rotatably arranged between the discharge devices, magnet two is symmetrically installed on the discharge device, and magnet one is movably attracted to magnet two. This utility model uses a rotating knob to drive a threaded rod to move the connecting frame, achieving smooth lifting and lowering of the discharge device, and precisely adjusting the coating height, thus adapting to PVC anti-slip mats of different thicknesses.

A method for manufacturing a semiconductor memory device includes: sequentially forming a lower oxide layer, a word line metal layer, and an upper oxide layer over at least a portion of a memory cell; forming a via through the upper oxide layer, the word line metal layer, and the lower oxide layer to expose a portion of the memory cell; forming a sacrificial pillar in the via; removing the upper oxide layer to expose the top of the sacrificial pillar; sequentially forming a first oxide sidewall, a nitride sidewall, and a second oxide sidewall on the sidewall of the top of the sacrificial pillar; removing the nitride sidewall to form a void; and etching the word line metal layer through the void to form individual word lines. An enhanced self-aligned word line process utilizes different material spacers to precisely pattern the word line metal layer to form multiple word lines with balanced widths.

This utility model discloses a filter element cutting device, comprising: a U-shaped frame, a conveyor internally mounted on the U-shaped frame, a folding cover rotatably mounted on the other end of the U-shaped frame, a folding pressing mechanism fixedly mounted inside the U-shaped frame, the pressing end of the folding pressing mechanism being able to flip and press against both ends between the conveyor and the folding cover to achieve pressing of the conveyed filter element, and an N-shaped frame fixedly mounted on the upper surface of the U-shaped frame, with a laser ranging sensor fixedly mounted inside the N-shaped frame. This application, through the design of the folding pressing mechanism, achieves fully automated operation from conveying, folding, detection, and cutting, reducing manual intervention, improving production efficiency, and lowering labor costs. Simultaneously, the closed-loop thickness detection and control system ensures the stability and consistency of filter element quality, improving the overall product quality.

The invention relates to the technical field of impregnated paper processing, and discloses an accurate impregnated paper gluing device which comprises a platform, a gluing assembly used for gluing impregnated paper is arranged above the platform, and an adjusting assembly used for determining the width of the impregnated paper is arranged at the top of the platform. The adjusting assembly is provided with a downward pressing assembly used for preventing impregnated paper from curling, the adjusting assembly is further provided with a cleaning assembly used for removing adhesive glue, and the two sides of the platform are rotationally connected with conveying rollers used for conveying the impregnated paper through connecting bases. The problem that when the size of the impregnated paper is smaller than the gluing range, glue is prone to dripping on the conveying platform, and consequently glue waste is caused is effectively solved, the production and processing cost of the impregnated paper is saved, and practicability is high.