49 results about "Double coating" patented technology

The invention discloses a titanium and titanium alloy cutting tool coating and a preparation method thereof, the titanium and titanium alloy cutting tool coating comprises a coating substrate and a double-layer coating deposited on the substrate, and the double-layer coating sequentially comprises a base layer and a functional layer from the substrate side to the surface side of the double-layer coating. The base layer is composed of a metal compound TiBx, and the functional layer is composed of a metal compound TaSiy. The titanium and titanium alloy cutting tool coating provided by the invention has relatively high wear resistance, high temperature resistance, oxidation resistance and bonding resistance, the bonding strength between the coating and a matrix is good, the production process is simple, the production cost is low, and the titanium alloy cutting efficiency can be effectively improved.

The invention belongs to the technical field of conductive material preparation, and relates to a refined asphalt-based porous carbon double-layer orderly coated conductive material and a preparation method and application thereof, and the preparation method comprises the following steps: S1, cutting medium and low temperature coal tar to obtain fraction section asphalt of 350-550 DEG C; s2, refining the fraction section asphalt, and blending with polyacrylonitrile fibers (PAN) to obtain a compound material; pre-oxidizing the compound material at low temperature, mixing with an activating agent, grinding, drying, activating at high temperature, cooling and washing to obtain refined asphalt porous carbon; s3, coating the refined asphalt porous carbon with silicone oil through an impregnation method, and curing to obtain a single-coating coating material; and S4, dissolving the single-coating coating material in tetrahydrofuran, then adding carbolic oil-gel to perform double-layer coating, and performing secondary curing treatment to obtain the conductive material. According to the invention, medium and low temperature coal tar is used as a raw material, and the cycle stability and electrochemical performance of the conductive material are improved and the processing cost is reduced through methods of fraction cutting, mixed carbonization and double-layer coating.

The invention discloses a high-stability super-hydrophobic antireflection transparent coating and a preparation method thereof. The preparation method comprises the following steps: preparing a super-hydrophobic SiO2 ethanol dispersion liquid; a resin / OTS modified SiO2 double-layer coating is prepared; the prepared low surface energy molecular precursors comprise a PDMS gas phase precursor and a silica gel precursor; putting the resin OTS modified SiO2 double-layer coating and a low-surface-energy molecular precursor into a muffle furnace for calcining, naturally cooling to room temperature, and taking out to obtain the high-stability super-hydrophobic antireflection transparent coating. According to the high-stability super-hydrophobic antireflection transparent coating and the preparation method thereof provided by the invention, namely a spraying-calcining method, a nanoscale low-refractive-index porous SiO2 coating can be conveniently constructed, and low-surface-energy oligomer is attached to the surface, so that the contradictory problem that transparency and super-hydrophobicity of the transparent super-hydrophobic coating are difficult to optimize at the same time is solved; in addition, the preparation method is simple and controllable, and lays a foundation for large-area low-cost preparation.

A dosage form has a core with at least one biologically active ingredient, an intermediate coating layer (ICL), and an enteric coating layer (ECL). The ICL has at least one polymer, at least one alkaline agent, and at least one release acceleration agent. The ECL has at least one polymer. A method for obtaining the dosage form coats the ICL on the core via spray coating, followed by the coating of the ECL on the ICL via spray coating. The dosage form provides accelerated drug release at values of pH 3 to pH 6, with at least 80% drug release within 60 min at pH values 3 and 5.

A double coating structure based on a multifunctional water-based low-temperature paint, and a coating system and the use thereof. The double coating structure comprises a first coating and a second coating, wherein the first coating comprises a mixture of a flaky metallic pigment and an inorganic oxide pigment; the second coating comprises a transparent organic color paste; and a first-coating paint composition used for the first coating and a second-coating paint composition used for the second coating are both mixtures containing an acrylic resin emulsion and a polyurethane dispersion. The double coating structure uses the technical solution of a pigment mixture and does not contain any curing agent such as an isocyanate; the obtained double coating structure has high radar wave transmission performance, high infrared reflection performance and high reflective insulation capacity, and is particularly suitable for black or silver paint systems; and since a water-based low-temperature paint is used, the double coating structure has the characteristics of significant low-temperature quick-drying film formation, a thin coating and a low VOC content, and can realize a coating process that has low energy consumption and is healthy and environmentally friendly.

A wheel includes a hub portion configured to rotate about a rotational axis. A plurality of blades extends radially outward from the hub portion. Each blade of the plurality of blades includes a leading edge and a trailing edge. The hub portion and the plurality of blades include a substrate metal that includes aluminum or an alloy thereof. The substrate metal of the plurality of blades has coated directly thereon a first coating layer including electroless nickel-phosphorous. The first coating layer has coated directly thereon a second hard coating layer that overlies the leading edges of the plurality of blades and that is formed of a physical vapor deposition-compatible material.

The application belongs to the technical field of surface protection, and discloses a double-layer coating for a boiler heating surface and a preparation method thereof; wherein the double-layer coating comprises an inner layer coating and an outer layer coating; in the inner layer coating, the mass percentage of rare earth oxide is 0.1% to 0.3%, and the mass percentage of Inconel 625 is 99.7% to 99.9%; the outer layer coating is used for spraying on the surface of the inner layer coating, and in the outer layer coating, the mass percentage of Cr3C2 is 30% to 50%, and the mass percentage of Inconel 625 is 50% to 70%. The double-layer coating provided by the application has extremely excellent high-temperature chlorine corrosion resistance of the inner layer coating, and on the basis of the high-temperature corrosion resistance of the outer layer coating, the outer layer coating has extremely excellent erosion resistance, and can effectively prolong the service life of the boiler heating surface tube bundle steel.

Various embodiments of devices comprising a synthetic polymer substrate having a high quality finish upper surface having at least a double layer coating comprising a first reflective layer and a second transparent layer are disclosed. Also disclosed are embodiments of the disclosed devices and kits that can detect particles. Also disclosed are various embodiments of methods of using the disclosed devices and various embodiments of methods of using the disclosed kits.

The invention belongs to the technical field of optical fiber coating materials, and particularly relates to a metal coating layer anti-radiation optical fiber and a manufacturing method thereof. According to the anti-radiation optical fiber provided by the invention, double coatings are arranged outside the bare optical fiber, the inner coating is an organic film layer, and the outer coating is a metal film layer. The optical fiber coating structure and the material composition are redesigned, so that the problems that the radiation resistance, the temperature resistance and the bending resistance of the existing radiation-resistant optical fiber are poor or cannot be considered at the same time are solved, and the continuous large-scale production of the high-temperature-resistant radiation-resistant optical fiber preparation process in the prior art cannot be realized; and the metal coating optical fiber with long section and long requirement cannot be prepared.

The utility model discloses a milling cutter for a nano-diamond coating surface. The cutter comprises a first cutter body, a cutter body coating assembly arranged at one end of the first cutter body and an installation fixing assembly arranged at the other end of the first cutter body, the cutter body coating assembly comprises a second cutter body connected to one side of the surface of the first cutter body in a matched mode, one end of the surface of the second cutter body is connected with a cutter head in a matched mode, and the surface of the cutter head is coated with a first coating. The surface of the tool bit is coated with a second coating, one end of the second tool body is connected with the tool bit, the tool bit is coated with the first coating and the second coating which are made of nano-diamond, the overall service time is prolonged through the use of the double coatings, and the falling-off condition is reduced; and the multiple cutting edges connected to the surface of the second cutter body in a matched mode are also coated with the double coatings, the overall practicability is improved, then when the nano-diamond coating face milling cutter is used, the thickness of the coatings of the overall milling cutter is large, and therefore the situation that the coatings fall off is not likely to happen.

The application discloses a kind of anticorrosion weather-resistant double-coat powder coating for new energy storage cabinet and preparation method thereof, belong to powder coating processing technical field, for solving the technical problem that powder coating for new energy storage cabinet corrosion resistance in prior art is further improved in outdoor weather resistance and strong medium corrosion resistance.A kind of anticorrosion weather-resistant double-coat powder coating for new energy storage cabinet, including primer and surface coating, the primer includes the following composition by weight parts: epoxy polyester 70-80 parts, anticorrosive filler 28-32 parts, curing agent 3-5 parts and auxiliary additive 2-3 parts.The application is designed by resin molecular structure and inorganic filler surface chemical modification synergistic construction high density, high weather-resistant double-coat system, so that coating still maintains excellent adhesion, impact resistance and long-term corrosion resistance under ultraviolet, impact and strong acid and alkali environment.

The invention discloses a false eyelash hidden type line stem preparation method, and relates to the technical field of false eyelashes, and the false eyelash hidden type line stem preparation method comprises the steps of base material selection, laser cutting, hair combination, line stem coating, double gluing, glue layer detection, folding and pressing, eyelash detection, reel pipe shaping, pulling and clamping, stem cleaning, packaging and the like. And after the false eyelash is folded and pressed, the thread stem is wrapped in the false eyelash, so that the problem that the thread stem of the traditional false eyelash is exposed to cause stiffness and falseness is solved. The stitches do not directly contact with eyelids, the prying feeling during blinking is reduced, even if a sensitive skin user wears the false eyelashes for a long time, redness, swelling and foreign body feeling do not exist, the wearing comfort degree is greatly improved, meanwhile, due to hiding of the stitches, air and sweat can be isolated, the glue aging speed is slowed down, and the service life of the false eyelashes is remarkably prolonged.

The title of the application is a two-layer coating system for composite protection. The present application shows a two-layer coating system for an epoxy composite component. The two-layer coating system includes a first layer configured to prevent transmission of at least one of ultraviolet light or visible light within a desired wavelength and a second layer in contact with the first layer and configured to reflect an infrared component of sunlight. The first layer comprises polyurethane and carbon black. And the second layer comprises polyurethane and titanium dioxide. The first layer is between the second layer and the epoxy composite component.

The application provides an edible active coating for preventing dry consumption under an ultralow temperature condition and a preparation method, and belongs to the technical field of active packaging. The application combines double-layer coatings, inhibits free radical oxidation generated by freezing through an inner antioxidant, and effectively locks water and blocks external oxygen permeation through the synergistic effect of an outer high-barrier structure, thereby significantly improving the freezing preservation effect of food, and the raw materials are natural and safe, the preparation method is reasonable, and the application has good practical application value. The application solves the problems of poor effects of edible freezing protection coatings suitable for extremely cold environments in the prior art.

The utility model provides an adjustable coating roller device which comprises a roller frame, double coating rollers are arranged on the upper side of the roller frame, the roller frame and the double coating rollers are connected through an adjusting device, the adjusting device comprises a horizontal moving device and an angle adjusting device, the horizontal moving device is connected with the top face of the roller frame, and the angle adjusting device is connected to the top face of the horizontal moving device in a driving mode. The double coating rollers are connected to the top face of the angle adjusting device through supporting plates on the two sides, and the double coating roller shafts are movably connected to the supporting plates. The double coating rollers are in driving connection with a rotary driving device; the rotary driving device drives the double coating rollers to rotate. The double coating rollers are moved, the coating on the double coating rollers is fully utilized, and waste of the coating is reduced. The double coating rollers conduct coating work in a specific angle state, the coating uniformity is improved, the edge effect is reduced, accumulation of coating on the edge of a silicon wafer is reduced, the thickness of a pattern layer is accurately controlled, bubbles and other defects are reduced, the coating quality is improved, rework is reduced, and the production efficiency is improved.

The present invention relates to the field of bolt technology, specifically a corrosion-resistant bolt and a method for preparing the same. The corrosion-resistant bolt comprises the following elements in weight percentage: C: 0.25-0.35%, Si: 0.16-0.38%, Mn: 0.4-0.7%, Cr: 0.1-0.2%, Ni: 0.2-0.4%, Mo: 0.15-0.30%, Ti: 0.12-0.16%, Ru: 0.05-0.15%, Rh: 0.16-0.32%, Ir: 0.10-0.15%, with the remainder being iron and unavoidable impurities. The present invention manufactures the bolt through processes such as converter smelting, continuous rolling, and cold heading, and, combined with a double coating design, can provide excellent corrosion resistance and extend the service life of the bolt.

The invention provides a preparation method of a C-TaC / SiC high-temperature corrosion-resistant coating. The method comprises the following steps: pretreating the surface of a carbon material to achieve cleaning and hole sealing effects; then placing in a low-temperature chemical vapor deposition furnace to deposit a first C-TaC complex phase coating, after high-flow propylene is heated and decomposed, depositing one part on the surface of the carbon material to generate a pyrolytic carbon coating, and reacting the other part with low-flow tantalum pentachloride gas to generate tantalum carbide which is dispersively distributed in the pyrolytic carbon coating; after the preparation of the first C-TaC coating is finished, continuously preparing a second SiC coating, introducing trichloromethylsilane into the reaction chamber through hydrogen, and generating a SiC coating on the surface of the C-TaC coating under the reduction action of the hydrogen; in the C-TaC / SiC double-layer coating structure, the high-component pyrolytic carbon can effectively improve the bonding strength of the coating and a matrix, reduce the difference of thermal expansion coefficients and facilitate the improvement of the compatibility with the second SiC coating; and a trace amount of tantalum carbide can be pinned on the surface of a matrix as a hard phase, so that the overall stability of the coating is improved.

The invention provides a dual self-repairing super-hydrophobic anticorrosive coating based on an ultrathin two-dimensional lamellar material and a preparation method thereof, and the dual self-repairing super-hydrophobic anticorrosive coating is characterized by comprising a component A and a component B, the component A comprises hydrotalcite loaded with an inorganic cationic corrosion inhibitor, the component B comprises Michaene suspension and a sol solution, and the hydrotalcite loaded with the inorganic cationic corrosion inhibitor in the component A comprises zinc-aluminum hydrotalcite and molybdate in a molar ratio of (4-75): (25-300). According to the preparation method, ultrathin two-dimensional nanosheet hydrotalcite and Michelene are designed and introduced, the double-self-repairing super-hydrophobic coating is prepared on the metal surface, a double-layer coating system is constructed, physical and chemical damage to the coating during service can be spontaneously repaired through the confinement effect of hydrotalcite and the photothermal effect of Michelene, and the service life of the coating is prolonged.

The invention relates to the technical field of coating devices, in particular to a double-coating-head coating machine. The coating device comprises a frame, a conveying mechanism, a coating mechanism, a drying mechanism and a discharging mechanism, the coating mechanism comprises a workbench, a supporting frame, a first die head, a second die head, a pre-coating assembly and a switching assembly. By arranging the pre-coating assembly, it is guaranteed that coating liquid is evenly distributed at the end of the coating head, and therefore the coating quality is guaranteed. According to the coating machine, the first die head and the second die head are arranged and are in a vertical distribution state, so that the overall size of the coating machine is reduced, the first die head and the second die head alternately complete coating in the coating process through the switching assembly, the pre-coating work of the other coating head is completed in the process of returning after one-time coating is completed, and the coating efficiency is improved. By arranging the recovery tank, the scraper and the sealing strip, the coating liquid on the surface of the first pre-coating roller or the second pre-coating roller is scraped into the recovery tank, and the second die head or the first die head is pre-coated, so that the waste of the coating liquid is avoided.

The invention provides a food source-based active coating for preventing dry consumption under an ultralow temperature condition and a preparation method thereof, and belongs to the technical field of food active packaging. According to the invention, through the combination of the two coatings, the inner antioxidant inhibits free radical oxidation generated by freezing, and the outer high-barrier structure effectively locks water and blocks the synergistic effect of external oxygen permeation, the freezing and fresh-keeping effect of food is significantly improved, the used raw materials are natural and safe, the preparation method is reasonable, and good practical application value is achieved. The problem that in the prior art, an edible freezing protection coating suitable for an extremely cold environment is poor in effect is solved.

Exemplary coating methods may include providing one or more coating precursors to a processing region of a semiconductor processing chamber. The processing region may be at least partially defined by a lid and one or more walls. The coating methods may include forming plasma effluents of the one or more coating precursors. The coating methods may include depositing a first portion of a coating on the lid and one or more walls at a first pressure. The coating methods may include, subsequent to a first period of time, increasing a pressure within the processing region to a second pressure over a second period of time while depositing a second portion of the coating on the first portion of the coating. The coating methods may include depositing a third portion of the coating on the second portion of the coating over a third period of time at the second pressure.

This invention discloses an integrated fluidized bed drying and sieving device for powder coatings using a dual-coating process. It includes a vibrating chamber and an upper chamber. The vibrating chamber houses an inclined conveyor frame, which contains a conveying and sieving mechanism composed of a sieve plate and a guide plate. A gap exists between the conveyor frame and the conveying and sieving mechanism, and a circulating dispersion frame is located within this gap. A discrete frame is movably mounted on top of the conveyor frame. The circulating dispersion frame includes a set of fixed shafts, with several transmission levers movably mounted between these fixed shafts. Compared to existing technologies, this invention has the advantage of pre-dispersing the material using the discrete frame and separating rollers, combined with the continuous agitation of the bottom powder by the circulating dispersion frame, significantly improving drying uniformity and sieving efficiency. Furthermore, by setting up a monitoring module to dynamically adjust process parameters, it ensures the stability of equipment operation and high efficiency of maintenance, effectively improving the overall quality and automation level of powder coating production.

The present invention discloses a warpage-free and impact-resistant foldable glass cover plate. The glass cover plate includes, from top to bottom: a hard coating of 10-15 μm, an impact-resistant coating of 25-35 μm, flexible glass, and a warpage-resistant coating of 5-10 μm. Its preparation method includes the following steps: S1. Coating an impact-resistant coating material on the surface of the flexible glass and curing it to obtain flexible glass with an impact-resistant coating; S2. Coating a hard coating material on the surface of the impact-resistant coating and curing it to obtain flexible glass with a double-layer coating; S3. Coating a warpage-resistant coating material on the surface of the flexible glass without the coating material and curing it. The foldable glass cover plate can be applied to foldable screen mobile phones, and has excellent properties such as good tactile feel, light transmittance, bendability, and impact resistance.

The invention belongs to the technical field of coating preparation, and particularly relates to a high-thermal-conductivity anti-sticking coating and a preparation method and application thereof.The high-thermal-conductivity anti-sticking coating is prepared by using gallium-based liquid metal as a binding material of a carbon nanotube array, modifying the surface of a to-be-coated object with a gallium-based liquid metal layer, and growing the carbon nanotube array perpendicular to the gallium-based liquid metal layer; by means of good heat conduction and cooling performance of the gallium-based liquid metal layer and good hydrophobicity of the vertical carbon nano tube array layer, the synergistic effect of the double coatings is achieved, and then the heat conduction performance and the anti-adhesion capacity of the bipolar electric coagulation forceps are improved.

The utility model relates to the technical field of coating equipment, and discloses an adhesive coating device which comprises a conveying line, and a double coating mechanism is arranged at the top of the conveying line; and the double-coating mechanism comprises a mounting frame, a first liquid storage tank, a spray head, a fixed frame, a second liquid storage tank, a movable part and a brush head. According to the coating device, the double coating mechanisms are arranged, when a conveying line conveys a plate body needing to be subjected to coating processing, the plate body can pass through the double coating mechanisms, when the processed plate body passes through the mounting frame, the spray head can coat a first coating on the surface of the processed plate body, and then when the processed plate body passes through the fixing frame, the spray head can spray a second coating on the surface of the processed plate body. The movable part is in contact with the surface of the processing plate body and is jacked up, so that a solution in the circulating groove can flow to the surface of the processing plate body through the groove, the surface of the processing plate body is coated with a second coating, the surface of the first coating can be coated with a second coating, a double coating effect is formed, and the comprehensive performance of the coated coating after curing is better.

The application discloses a light coating heat-shielding umbrella cloth and a preparation method thereof, and belongs to the technical field of sunshade fabrics. The umbrella cloth comprises a reinforced base cloth with a surface density less than 35 g / m2 and a breaking strength greater than or equal to 200 N, a color-keeping reflective bottom layer and a modified aluminum silver paste reflective surface layer are sequentially coated on the base cloth, the overall surface density of the umbrella cloth is less than 65 g / m2, the heat-shielding rate is greater than 65%, and the light color fastness is greater than or equal to grade 4. The application reflects heat through the cooperation of the double-layer coating, realizes light weight while ensuring high heat-shielding rate, has good color-keeping property of the coating, has no light glare phenomenon, and simultaneously has excellent ultraviolet-proof and waterproof performances. The application further provides a preparation method of the umbrella cloth and a preparation method of the modified aluminum paste. The application overcomes the technical problem that light weight and high heat-shielding performance are difficult to be simultaneously achieved in the prior art, and is suitable for a light sunshade umbrella.

The utility model discloses infrared heat-sealing adhesion equipment for a paper-based material. A heat-sealing station groove is formed in the heat-sealing fixed base; the heat-sealing pressing mechanism comprises a pressing device and a heat-sealing moving base, and a heat-sealing pressing head corresponding to the heat-sealing station groove in position is arranged on the heat-sealing moving base; the heat sealing movable base and the heat sealing fixed base are each internally provided with a heating power groove with the hollow interior. A circulating protruding pipe protruding upwards is further arranged at the edge position of the heat sealing fixing base. A paper-based material finished product manufactured by the heat-sealing adhesion equipment of the device has better performance, wherein the bonding force between heat-sealing layers is greater than 150j / m < 2 >; the oil-proof Kit value is increased by 53%; the waterproof Cobb60 value is increased by 60%; the integration of multi-level blocking such as heat sealing and blocking can be realized; a single coating, a double coating and an integrated coating for heat sealing and blocking can be realized, so that the oil resistance and the water resistance are greatly improved; and an infrared auxiliary drying device can be arranged for drying, so that the working efficiency is improved.

The title of the application is a two-layer coating system for composite protection. The invention discloses a double-layer coating system for a composite part. The two-layer coating system includes a first layer configured to prevent transmission of at least one of ultraviolet light or visible light within a desired wavelength and a second layer in contact with the first layer and configured to reflect an infrared component of sunlight. And the second layer comprises polyurethane and titanium dioxide. The first layer is between the second layer and the composite component.

The application discloses an online secondary coating machine for roller printing products, which comprises a rack, two coating pad rollers positioned and installed on the rack, a coating plate roller positioned and installed on the rack and adjacent to the coating pad rollers in one-to-one mode, a transition roller and a paper conveying roller positioned and installed on the rack and sequentially transmissionally connected between the two coating pad rollers, the front and back sides of the transition roller being the coating pad rollers or the paper conveying roller, the transition roller and the coating pad rollers or the paper conveying roller being transmissionally connected through bevel gears, the transition roller being internally provided with a blowing device so that the coating surface of the coated material is inward and the coating content is not in contact with the transition roller when the coated material is pulled forward, and the upper side of the paper conveying roller being provided with a hot air device for blowing hot air to the coating surface of the coated material to heat and dry the coated material. The transition roller does not contact and transfer the coated material, the online double coating is completed without leaving the machine table, the accurate gear transmission between the rollers can guarantee that the overprint position of the double coating is more accurate, the overprint position deviation caused by repeated feeding is avoided, and the efficiency is improved.