170results about How to "Smooth surface" patented technology

Coated microneedle devices and methods of making such devices are provided. In one aspect, a method for coating includes providing a microstructure having at least one surface in need of coating; and applying a coating liquid, which comprises at least one drug, to the at least one surface of the microstructure, wherein the surface energy of the coating liquid is less than the surface energy of the surface of the microstructure. The coating liquid may include a viscosity enhancer and surfactant. Microneedles having heterogeneous coatings, pockets, or both are also provided.

A method of forming a via hole through a glass wafer includes depositing a material layer on an outer surface of the glass wafer, the material layer having a selection ratio higher than that of the glass wafer, forming a via-patterned portion on one side of the material layer, performing a first etching in which the via-patterned portion is etched to form a preliminary via hole, eliminating any remaining patterning material used in the formation of the via-patterned portion, performing a second etching in which the preliminary via hole is etched to form a via hole having a smooth surface and extending through the glass wafer, and eliminating the material layer. The method according to the present invention is able to form a via hole through a glass wafer without allowing formation of an undercut or minute cracks, thereby increasing the yield and reliability of MEMS elements.

A body-mountable image capture device comprising a device body and a cover slidably mounted onto the device body, the device body comprising a camera, the cover sliding between a first position and a second position such that in the first position the camera is concealed and in the second position the camera is exposed. The body-mountable image capture device comprises activation means operable to initiate the camera when the cover is in the second position and the camera is exposed. The orientation of the camera is adjustable with respect to that of the device body such that the orientation of the camera can be maintained. The orientation of the camera may be automatically adjusted to keep the field of view generally horizontal. The camera may automatically rotate left and right in a horizontal plane responsive to movement of a head mounted sensor to thereby track a user's head movements.

A raschel blanket of modyhr-cotton is prepared form 35-50 wt.% of modyhr, 30-40 wt.% of cotton and 15-30 wt.% of polyester. Its manufacturing process includes warping polyester filament, warping wool yarn blended by modyhr and cotton, weaving for fabric, splitting and opening fine hair, inspecting and sending inspected material to warehouse of semi-finished product.

The present invention provide a pressure-sensitive adhesive sheet for optical member adhesion, which includes at least an acrylic pressure-sensitive adhesive layer, in which the acrylic pressure-sensitive adhesive layer has a storage modulus at 23° C. of from 1.0×10⁴ Pa to less than 1.0×10⁵ Pa and has a peeling pressure-sensitive adhesive force (with respect to polyethylene terephthalate, 180° peeling) at 80° C. of 2.5 N/20 mm or more. This pressure-sensitive adhesive sheet is excellent in thickness unevenness absorbability and durability even when the sheet is a thin film.

A lamination apparatus having an upper platen and a lower platen that open and close to define a lamination chamber therebetween, an electric heater to melt a resin layer of the material to be laminate-molded, a film body provided on the surface of the lower platen, a smooth pressurizing surface formed on the surface of the upper platen, a frame which forms a wall of the lamination chamber in which the material to be laminate-molded is shaped by being clamped between the opposing surfaces of the upper platen and the lower platen, a suction device to depressurize the lamination chamber, a deformable pressurizing plate resiliently interposed between the film body and the material to be laminate-molded and a contact pressurizing mechanism which cause the film body to maintain contact with the surface of the lower platen and separate therefrom to pressurize the material to be laminate-molded through the pressurizing plate pressing against the pressurizing surface of the upper platen.

The invention discloses a 3D curved ultrathin glass bending and forming device and a manufacturing method. The device comprises a rotor disc, concave dies, a convex die, a cylinder, a glass transfer mechanism, a tunnel furnace, a vacuum system and an electric control operating system, and a plurality of concave dies are arranged on the rotor disc. By adopting the device, the concave dies and the convex die are quickly heated in different stages; the ultrathin glass is sequentially placed on the concave dies of the rotor disc and is subjected to preheating; when the ultrathin glass rotates and reaches the corresponding work station on the convex die, the convex die is pressed, and a far infrared lamp tube is utilized to quickly heat to the glass softening point; in addition, the ultrathin glass on the concave dies is sucked and the convex die is pressurized by virtue of the vacuum system, so that the ultrathin glass is bended; the ultrathin glass is transferred to the tunnel furnace to be cooled by virtue of the glass transfer mechanism, so that the 3D curved ultrathin glass can be manufactured.

The present invention relates to a polyurethaneurea solution having a polyurethaneurea having a structural unit of the formula (I)

and terminated with at least one copolymer unit of the group consisting of a polyethylene oxide, a polypropylene oxide, and mixtures thereof.

A vacuum chuck for holding a semiconductor wafer during high pressure, preferably supercritical, processing comprising: a wafer holding region for holding the wafer; a vacuum region for applying vacuum to a surface of the wafer, the vacuum region within the wafer holding region; and a material, preferably sintered material, applied within the vacuum region, the material configurable to provide a uniform surface between the surface of the wafer and the wafer holding region, wherein the material is configured to allow vacuum to flow therethrough. The vacuum region preferably comprises at least one vacuum groove. Alternatively, the vacuum region includes at least two vacuum grooves that are concentrically configured on the wafer holding region. The vacuum groove alternatively comprises a tapered configuration. Alternatively, a coating material is applied between the wafer surface and the substantially smooth holding region surface, whereby the coating provides a seal between the wafer and the holding region.

The invention relates to a treatment method for improving the oxidation resistance of a thermal barrier coating (TBC) bonding layer, and belongs to the technical field of surface treatment and modification of the TBC bonding layer. In the material surface treatment and modification processes, the surface roughness of the TBC bonding layer (MCrAlY) prepared by a plasma spraying method is reduced through high current pulsed electron beam irradiation, and the pores and holes of a coating are reduced, so that the high-temperature oxidation resistance of the TBC bonding layer is improved. Technical conditions are that vacuum degree is 3.5*10<-2>Pa, voltage is 15kV, frequency is 1Hz, pulse width is 50 to 200mu s, energy density is 8 to 18J/cm<2>, and pulse times is 10 to 20. The method has the advantages that the surface roughness of the TBC bonding layer (MCrAlY) prepared by the plasma spraying method is reduced through high current pulsed electron beam irradiation, the pores and holes of the coating are reduced, and penetrated microcracks are avoided, so that the high-temperature oxidation resistance of the TBC bonding layer is effectively improved.

The invention discloses a manufacturing method of strong twinkling aluminium pastes. The manufacturing method comprises the following steps: in a vertical stirring mill, adopting glass beads with the diameter being 1.0-5.0mm to serve as milling medium of a ball mill; mixing uniformly the ultrafine spherical aluminium powder with d50 being greater than 8mu m and less than 10mu m, organic solvent and dispersing agent according to the ratio of 20-50:80-200:1-5; ball milling for 20-50h under the rotating speed being 50-200rpm, discharging, filter pressing, introducing the filter liquor to the ball milling procedure for recycling; classifying through fine screening; filter pressing the screened material at each stage by the filter press; blowing dry and reusing; filter pressing and washing through; carrying out surface treatment on the filter cakes entering the mediating procedure; controlling the thickness of the aluminium particles to be 1-2mu m; and packaging to obtain the finished products.

An electronic functional label and a special production process for such a label, which can be equipped with electronic components in very simple, fast, and effective manner, without a soldering process that is connected with high temperatures. For this purpose, a carrier substrate preferably having printed electronic structures is equipped with electronic components by means of an electrically conductive adhesive. The use of special electronic components (sensors and optical/acoustic actors) that interact with their surroundings proves to be particularly advantageous in this connection. High-quality labels, in particular, having surprising interactions can be produced in a simple and cost-advantageous manner.

A method for planarizing polysilicon comprises providing a substrate, forming a dielectric layer on the substrate, forming an amorphous silicon film on the dielectric layer, etching the amorphous silicon film to remove native oxide formed on a surface of the amorphous silicon film, exposing the surface of the amorphous silicon film to a first radiation source to polycrystallize the amorphous silicon film into a polysilicon film, etching the polysilicon film to remove weak bonded silicon formed on a surface of the polysilicon film, and exposing the surface of the polysilicon film to a second radiation source to reflow the polysilicon film.

The invention relates to a piece of thermoplastic polyurethane/fiber composite soft cloth. An intermediate layer is a piece of continuous fiber cloth, an upper surface layer and a lower surface layer are respectively a thermoplastic polyurethane resin layer, and the intermediate layer is connected with the upper surface layer and the lower surface layer through a hot laminating way. The composite soft cloth adopts TPU and fiber fabrics of different types and colors as raw materials, and TPU is bonded with the fabrics in a hot laminating manner, so that the pollution is avoided, the process is simple, the cost is low, the appearance effect is excellent, and the thermoplastic polyurethane/fiber composite soft cloth can be applied to top-grade appearance parts such as cases and vamps.

A leveling blade for mounting onto a support bracket of a vibrating screed, and a vibrating screed including the same. The leveling blade has a substantially vertical portion for mounting onto the support bracket, as well as a substantially slanted portion and a substantially horizontal portion, which results in the leveling blade having a particular profile. The vibrating screed includes also a vibration-generating assembly, being operatively mounted onto the support bracket of the vibrating screed for imparting vibrations to the leveling blade via the support bracket so as to enable to carry out a surfacing of a substantially malleable material with the vibrating screed by passing said leveling blade provided with vibrations about said substantially malleable material. A kit is also provided for assembling such a vibrating screed.

The invention relates to a port sealing process of a heating container of an electric water heater, which comprises the following steps: first clamping a fixture for a red copper tube on a machine tool, adopting an edge-less cutter with an arc-shaped side on one end, slowly extruding the edge of the port of the red copper tube which rotates at high speed with the front end of the edge-less cutter so that the port of the red copper tube produces high temperature when rotating at high speed and having point-surface extrusion friction with the front end of the edge-less cutter, and enabling the port to close up inwards with the extension, pressing and stretching characteristics of red copper; forming a new port after the port of the red copper tube closes up inwards, extruding the new port with the arc-shaped end of the edge-less cutter, and so on, keeping closing up inwards until the port is gradually reduced and finally sealed in the center; and the port sealing process of the heating container of the electric water heater has the advantages of simple process, no seam and no welding, can well prevent welding and the oxidation of high-temperature melting points, can achieve attractive overall appearance, and is characterized by higher compressive strength, longer service life and the like.

The invention discloses a technique process which utilizes oxygen-acetylene subsonic flame to spray bronze alloy on steel surface, belonging to the technical field of the spraying of material surface. Firstly, the surface of a steel member is proceeded the treatment of deoiling, derusting and surface roughening, the surface of the steel member is preheated by the oxygen-acetylene subsonic flame, the oxygen-acetylene is employed as combustion flame, compressed air is utilized as powder-feeding air and speed up air, and atomizing particle flow is high-speed sprayed to the member surface by a subsonic spray gun and a compress-swelling spraying nozzle with the structure of spiral gas mixing and spraying-absorbing air inletting. The surface of steel member is firstly sprayed with nickel coated aluminum composite powder which is used to be base coat, then the base coat is sprayed with aluminum bronze layer, and hole-seal treatment is instantly proceeded after being sprayed. The invention has the advantages of high spraying efficiency, high binding intensity of an interface, perfect corrosion resistance, simple operation, beautiful formation of the appearance, low cost, easy popularization and application, and the like. In addition, the technique is in particular adaptable for spraying the surfaces of outdoor large-scale formations or statues.

The invention discloses a preparation method of a high interface strength nickel-zinc plated steel strip, which relates to a steel strip, in particular to a preparation method of a high-performance corrosion resistant nickel-zinc plated steel strip which consists of a nickel-zinc plated thick cladding layer and a low-carbon steel strip which are tightly integrated, and can be used in chemical industry, machinery, communication device and other industries. The cold rolled low-carbon steel is deoiled; the deoiled cold rolled low-carbon steel strip is put in a solution tank, and plated with a zinc layer; the zinc-plated low-carbon steel strip is put in another solution tank to be plated with a nickel layer; the nickel-plated low-carbon steel strip is put in a third solution tank to be passivated; the temperature of the passivated plated nickel-zinc layer steel strip is preserved, and the hydrogen in the plated layer is removed; the plated nickel-zinc layer steel strip with hydrogen removed receives diffusion annealing treatment; the plated nickel-zinc layer steel strip after diffusion annealing receives distressing heat treatment, and the high interface strength plated nickel-zinc steel strip is obtained.

The invention belongs to the technical field of glue pouring, and particularly relates to an LED module and a method for pouring glue on the surface of the LED module. The method for pouring the glue on the surface of the LED module comprises the steps that the LED module, the glue and a glue pouring mold are provided, wherein the glue pouring mold comprises a first mold component and a second mold component which are arranged up and down, a cavity is formed in the top of the second mold component, and the bottom surface of the cavity is a horizon plane; the LED module is fixed to the first mold component, light-emitting diodes on the surface of the LED module are made opposite to the second mold component, and the glue is poured into the mold cavity; the first mold component and the second mold component are matched up and down, so that the light-emitting diodes on the surface of the LED module are made to be downwards immersed in the glue; and after the glue is solidified, the LED module is separated from the mold. According to the LED module and the method for pouring the glue on the surface of the LED module, the surface of a glue layer formed after glue pouring of the LED module is made smooth and flat, the light-emitting diodes are better protected, and polishing is not needed after glue pouring.

This roughing insert is provided with an insert body, and a waveform cutting edge which is formed on an intersecting ridge line portion between a rake face and a flank face of the insert body, and which undulates along this intersecting ridge line portion. The waveform cutting edges are formed on the insert body respectively at positions which are rotationally symmetrical at predetermined angularintervals around a reference line of the insert bodies. These waveform cutting edges which are positioned rotationally symmetrically to each other are formed such that, when the insert bodies are rotated by the predetermined angle around the reference line, one or more portions of the waveform cutting edges do not match each other and are mutually asymmetrical.

The invention relates to a paint-filler leveling machine for sheet surfaces, which comprises a frame, a feeding device, a scraper device of paint filler, a paint filler box, an electric cabinet and a control cabinet, wherein, the paint filler box is arranged on the frame; the feeding device is arranged in front of the paint filler box; the scraper device of paint filler is arranged behind the paint filler box; the electric cabinet and the control cabinet are arranged on the frame for controlling the feeding device. The paint-filler leveling machine has the advantages of good leveling effect with paint filler, completion at one time, high efficiency and good quality. The paint-filler leveling machine is suitable for block board slabs, block boards, triplex boards and multi-layer boards.

The invention discloses a method for casting a wear-resisting sand pump. In the wear-resisting sand pump, a pump impeller, a material inlet and a pump body are precisely cast by a vacuum lost mold; a shaft is connected with the pump impeller through an outer cone and an inner cone; and the outer cone and the inner cone are rectangular, prismatic or hexagonal and are fastened by screws. The precise casting method comprises the following process steps of: 1, partitioning a foam material to obtain main parts, and bonding by using an adhesion agent to obtain an integrated model of which the shape is consistent with the main shape of a casting; 2, coating a mica-based coating onto the outer surface of a foam model, and drying; 3, putting the dried foam model into a sand box, filling dry sand into the sand box, and performing three-dimensional oscillation compaction; 4, vacuumizing the sand box by using a vacuum system through negative pressure; 5, pouring molten metallic iron from the feeder head of the sand box to replace the position of a foam-molded model so as to obtain a corresponding main part of the sand pump; and 6, condensing. The wear-resisting sand pump has the characteristics of high casting quality, high surface precision, high rigidity, high wear-resisting property, environment friendliness and the like, and is sanitary, safe and reliable.

The invention relates to an extrusion production line for an optical-grade transparent PC sheet, which has a simple structure and high product quality and automation level, and is characterized by orderly comprising a dry loading device, an extruding machine for smelting solid granular PC raw materials into colloidal PC raw materials to be output, a screen-changing device for filtering impurities, a metering pump for quantitatively outputting the colloidal PC materials, a moulding mould for generating the sheets, a three-roller calendar for cleaning the surface of the sheet, a first traction system, a thickness gauge for detecting the thickness of the sheet, a second traction system, a laminating device, an anti-static device, a third traction system, a storage rack, a winder and a cutting machine. The finished PC sheet product achieves optical-grade transparence, and has the advantages of uniform quality, smooth surface and the like.

The invention provides a preparation method of a silver dollar-shaped aluminum pigment, which is characterized by comprising the step of carrying out three-stage wet-method ball milling on D50 among aluminum powder with the diameter of 5-8 mum, wherein the diameters of milling balls is within 1.0-3.0 mm, milling balls with the density of 7.0-9.0 g/cm<3> is adopted in the first-stage ball milling,milling balls with the density of 5.0-6.9 g/cm<3> is adopted in the second-stage ball milling, and milling balls with the density of 2.0-4.0 g/cm<3> is adopted in the third-stage ball milling. The surfaces of particles in the tablet-shaped aluminum pigment produced with the method are smooth and clean so that the high glossiness, whiteness and metallic feel of an aluminum-silver paste product areensured.

The invention discloses a deplating method for a carbon-based thin film on the surface of a metal workpiece. Oily pollutants on the surface of the steel-substrate workpiece are removed firstly; then the pretreated workpiece is fixed to a workpiece rack in a vacuum chamber of a vacuum coating system containing a hollow cathode ion source, a gas inlet pipeline for guiding in working gas is mounted, and oxygen plasma is obtained when oxygen is led in; and the surface of the sample is bombarded by the oxygen plasma generated by the ion source, and then the workpiece separated from the carbon-based coating is soaked in a faintly-acid soak solution and then cleanly rinsed. The carbon-based coating can be completely stripped off in the oxygen plasma bombarding process, and the stripping speed can reach 0.5-1.0 micron/h; due to oxidation protection in the carbon-based surface layer stripping process, the positions where the coating is abraded or stripped are protected, and excessive etching of the positions cannot be caused by the proper oxygen ion density and energy.

A method is provided for coating at least a portion of at least one medical device. The method includes arranging a polymer on the portion of the medical device, arranging a bioactive agent on the portion of the medical device, and spraying, subsequent to the arranging of the polymer and the arranging of the bioactive agent, a solvent on the portion of the medical device. The method may further include selecting a composition of the solvent to achieve a desired agent release response profile for the medical device. A medical appliance is provided having a coating applied by a method that includes arranging a polymer on the portion of the medical device, arranging a bioactive agent on the portion of the medical device, and subsequently spraying a solvent on the portion of the medical device. A method is provided for achieving a desired agent release response profile for a medical device by reflowing the coating with a solvent.

The invention provides waterborne polyurethane resin for a synthetic leather fabric and a preparation method of the waterborne polyurethane resin. The waterborne polyurethane resin is prepared from the following raw material components in parts by weight: 20 to 50 parts of polyhydric alcohols, 5 to 20 parts of polyisocyanate, 1 to 6 parts of an anionic hydrophilic chain-extending agent, 0.05 to 0.2 part of a catalyst, 0.1 to 0.3 part of a silane coupling agent, 1 to 4 parts of a salt-forming agent and 1 to 5 parts of a second small molecule chain-extending agent, wherein the polyhydric alcohols comprise hydroxyl-terminated polysiloxanediol, polytetrahydrofuran polyol and polycarbonate diol; the weight ratio of the hydroxyl-terminated polysiloxanediol to the polytetrahydrofuran polyol to the polycarbonate diol is (2 to 6) to (10 to 25) to (18 to 30). The waterborne polyurethane resin obtained by the preparation method provided by the invention has the advantages of good alcohol resistance, good normal temperature folding resistance and good wear resistance; a production process of the preparation method provided by the invention is simple; a large amount of toxic or harmful organic solvents in the production process are avoided, so environmental protection and physical and psychological health of a human body are benefited.

The invention provides a method for manufacturing a matrix by the adoption of a 3D printing technology. The method comprises the steps that a sample and a sample image are selected according to needs; the selected sample image is designed and remade through manual drawing, and a redesigned sample image is obtained; the redesigned sample image is subjected to three-dimensional forming treatment, and a three-dimensional digital model of the sample is obtained; and the three-dimensional digital model of the sample is guided into a 3D printer, the machine is edited for printing treatment, and a printed matrix is formed. The method provides a novel rapid lacquer matrix manufacturing mode, the defect occurring when a traditional matrix is manufactured is overcome, and as the photosensitive resin 3D printed matrix and paper matrix completeness is high and the surface is smooth, financial resource, material and labor consumption caused by matrix manufacturing in the earlier stage is greatly reduced and the technique processes are reduced. The matrix can be obtained only by slight polishing, priming and lacquer coating. Time and labor are saved, and more crafts and techniques can be tried.

The invention discloses a large alloy steel part cutting method through a diamond wire saw. Firstly, hanging a large alloy steel part to be cut to a cutting working platform, determining a cutting position of the large alloy steel and making a marker line, then mounting a diamond wire saw, putting the diamond wire saw to the position of the marker line, and adjusting the cutting device to enable the diamond wire saw to be perpendicular to the marker line; secondly, cooling the large alloy steel part with coolant, performing grinding and cutting through closed-loop high-speed rotating of the diamond wire saw; finally, cutting the large alloy steel part to finish cutting. According to the large alloy steel part cutting method through the diamond wire saw, the selected diamond saw is flexible and belongs to high-speed cold machining, not only machining damage and deformation of the large alloy steel part to be cut can be avoided, but also the cutting efficiency and accuracy of the large alloy steel part can be improved, and labor intensity can be effectively reduced.

The invention relates to the field of metal matrix PCBs, in particular to a contour machining method of a metal heat conduction block. The method includes the following steps: a punch die is manufactured according to the shape of a metal block, and the design size of the punch die is larger than the size of the metal block; a copper plate is placed on the die for punching to obtain metal block workblank with the size larger than a needed size; at least two pieces of metal block workblank are overlapped and placed on a clamping platform, and a numerical control machine milling technology is used for milling the peripheral edge of the metal block so that metal block fine workblank with the needed size can be obtained; the metal block fine workblank is polished; cleaning and deoxidation are conducted on the surface of the metal block fine workblank to obtain the metal heat conduction block. In the punching process of the metal block, the edge of the metal block is prevented from being extended, being thinned and collapsing, the surface of the small size metal block which is machined and formed is smooth and clean, collapsing does not occur to the edge of the metal block, the machine-shaping efficiency of the metal block and the utilization rate of materials are improved, material consumption is lowered, and the quality of the metal block is effectively guaranteed.