1080 results about "Vitreous enamel" patented technology

The invention belongs to the technical field of enamel glaze preparation, and particularly relates to a high-temperature-resistant compact enamel glaze preparation method, which comprises: 1, enamel frit preparation: mixing 45-65% by mass of silicon dioxide, 10-15% by mass of anhydrous borax, 5-10% by mass of sodium carbonate, 2-6% by mass of lithium carbonate, 2-6% by mass of calcium carbonate, 2-6% by mass of strontium carbonate, and 3-6% by mass of ice crystal to form a batch, melting at 1300 DEG C for 2-3 hours, carrying out water quenching to prepare an enamel material, drying, and sieving with a 200-mesh sieve to obtain enamel frit powder; step 2, preparing enamel glaze slip, namely mixing and ball-milling 40-55% of enamel frit powder, 15-30% of 316 # stainless steel powder, 5.5-10% of clay suspending agent and 25-50% of water in percentage by mass to obtain the enamel glaze slip; and step 3, enamel coating and firing. The enamel coating has excellent high temperature resistance and corrosion resistance and long service life, and the preparation process is simple in requirement, simple and convenient to operate and suitable for industrial production.

The invention discloses a real-time monitoring and feedback control system for enamel electrostatic powder coating, and relates to the technical field of industrial enamel coating. The system comprises a data acquisition and monitoring module, a feedback control decision module, an execution mechanism control module, a spraying path planning and adjusting module, a parameter optimization and adaptive adjustment module and a multi-target cooperative adjustment strategy module. The system builds a standardized state vector and recognizes abnormity by collecting spraying enamel electrostatic powder state parameters, deposition error signals and environment interference data, and closed-loop control and dynamic adjustment of spray gun electrode voltage, powder supply amount and spray gun path parameters are achieved. Intelligent algorithms such as particle swarm optimization are introduced to optimize a controller and process parameters, the coating uniformity and the deposition efficiency are automatically balanced in combination with a multi-target collaborative strategy, and stable spraying quality is achieved under complex working conditions. The method has the advantages of self-learning, self-adaption and expandability, and the intelligent level and the production performance of the enamel electrostatic powder spraying process are remarkably improved.

The invention relates to the technical field of inorganic non-metal coating materials, in particular to high-stain-resistance enamel matte glaze and a preparation method thereof.The high-stain-resistance enamel matte glaze is prepared from selected quartz sand, feldspar and other basic raw materials by adding a composite additive Y and a rare earth activator Z. The preparation method comprises the steps that the basic raw materials are mixed and subjected to ball milling, then the additives are added for continuous ball milling, high-temperature melting, water quenching and secondary ball milling are conducted, and the high-stain-resistance enamel matte glaze is obtained. The granularity is controlled, and the stain resistance is improved. The enamel matte glaze has the advantages of obvious advantages, high stain resistance, difficulty in stain attachment, easiness in cleaning, capability of prolonging the service life of a product and reducing the maintenance cost, photocatalytic self-cleaning and environment-friendly characteristics, good matte effect and capability of improving the competitiveness of the product.

The invention discloses a fluoride salt-free nitrate-free cast iron enamel semitransparent glaze as well as a preparation method and application thereof, and belongs to the technical field of enamel. The semitransparent glaze is prepared from quartz, anhydrous borax, sodium carbonate, potassium carbonate, calcium carbonate, potassium feldspar, zinc oxide, lithium carbonate, zirconium silicate, titanium dioxide, aluminum oxide, trisodium phosphate, antimony oxide, magnesium carbonate and barium carbonate according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The semitransparent glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, meanwhile, the product has good porcelain surface, luster and low-temperature firing adaptability, and is suitable for cast iron matrixes, the firing temperature is 740-760 DEG C, and the firing time is 2-3 hours. The method can be used for producing green and environment-friendly enamel products.

The invention discloses an enamel plate surface defect detection method based on machine vision, and relates to the technical field of enamel plate surface defect detection. The method comprises the following steps: acquiring an original image of an enamel plate, and fusing the original image through a point-by-point optimal gray fusion method to obtain a real-time reflection suppression image; a defect-free reflection suppression image of the enamel plate is collected, matching analysis is conducted on the defect-free reflection suppression image and the real-time reflection suppression image through an improved PaDiM algorithm, a difference texture area is obtained, and coordinates of the difference texture area are recorded; in the difference texture area, two types of image features are extracted through a scale attention feature extraction method and fused, a real-time and standard fusion matrix is obtained, and a defect detection result is obtained through similarity matching; and converting the coordinates of the difference region to obtain a defect positioning result, calculating a defect comprehensive score based on a defect detection result, and grading to complete the surface defect detection of the enamel plate.

The invention discloses a nuclear radiation resistant heat-insulating protective coating for steam pipelines and a preparation method thereof. The coating comprises a surface layer and a bottom layer; the surface layer comprises 30 to 50 parts of a surface layer base, 10 to 30 parts of pigments and fillers, 5-10 parts of metal powder, 18 to 20 parts of a curing agent and 18 to 20 parts of a diluent; the bottom layer comprises 10 to 30 parts of a bottom layer base, 30 to 50 parts of pigments and fillers, 5-10 parts of metal powder, 18 to 20 parts of a curing agent and 18 to 20 parts of a diluent; wherein the surface layer base comprises acrylic modified organic silicon resin; the bottom layer base comprises water glass; the pigments and fillers comprise enamel powder, ceramics and auxiliary fillers; the auxiliary fillers comprise one or more of mica, iron oxide, zinc titanate, fluoropolymer and borosilicate; the coating of the invention can effectively insulate and protect the steam pipeline in a high temperature and nuclear radiation environment, thereby extending the service life of the steam pipeline and improving the safety and reliability of the nuclear power plant.

The invention relates to a washing and / or cleaning agent, comprising at least one peptide and at least one enzyme which has hydrolytic activity on an ester bond, preferably selected from lipase and esterase, in particular esterase with lipolytic activity, particularly preferably lipase, wherein the peptide is suitable for adhesion to a fat- and / or oil-containing surface or to a surface coated with fat and / or oil or to a surface provided with at least one fat- and / or oil-containing soil, wherein the surface consists of hard surfaces, more preferably surfaces containing or consisting of ceramic (e.g. porcelain, earthenware), metal, steel, stainless steel, plastic, glass, natural and artificial stone, painted and enamelled surfaces, wood, laminate, linoleum and mixtures thereof, particularly preferably tableware (preferably made of ceramic such as porcelain or earthenware and plastic), metal (e.g.cutlery or pots) or glass and mixtures thereof, particularly preferably tableware (preferably made of ceramic such as porcelain or earthenware and plastic), metal (e.g. cutlery or pots) or glass, and / or textiles, more preferably textiles containing or consisting of cotton, polyester, polyamide, polypropylene and mixtures thereof, particularly preferably cotton, polyester and mixtures thereof. Furthermore, the invention relates to methods for cleaning hard surfaces and / or textiles, and to the use of such peptides and agents for improving the cleaning performance on at least one greasy and / or oily soil.

The invention discloses fluoride-salt-free and nitrate-free medium-temperature semitransparent glaze for steel plate enamel as well as a preparation method and application of the medium-temperature semitransparent glaze, and belongs to the technical field of enamel. The semitransparent glaze is prepared from quartz, potassium feldspar, anhydrous borax, sodium carbonate, titanium dioxide, monopotassium phosphate and zinc oxide according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The semitransparent glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, meanwhile, the product has good porcelain surface, luster and firing adaptability, is suitable for a steel plate matrix, has the firing temperature of 800-840 DEG C and the firing time of 20-30 minutes, and is suitable for a steel plate. The method can be used for producing green and environment-friendly enamel products.

The invention discloses fluoride-salt-free and nitrate-free high-temperature acid-resistant translucent glaze for steel plate enamel as well as a preparation method and application of the translucent glaze, and belongs to the technical field of enamel. The semitransparent glaze is prepared from quartz, anhydrous borax, titanium dioxide, trisodium phosphate, potassium carbonate, lithium carbonate, aluminum oxide, zinc oxide and sodium carbonate according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The semitransparent glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, meanwhile, the product has good porcelain surface, luster and firing adaptability, is suitable for a steel plate matrix, has the firing temperature of 840-880 DEG C and the firing time of 820-830 minutes, and is suitable for a steel plate. The method can be used for producing green and environment-friendly enamel products.

The invention discloses fluoride salt-free and nitrate-free low-temperature matte glaze for steel plate enamel as well as a preparation method and application of the low-temperature matte glaze, and belongs to the technical field of enamel. The matte glaze is prepared from quartz, borax pentahydrate, sodium carbonate, titanium dioxide, magnesium oxide, monopotassium phosphate, calcium carbonate, zinc oxide, magnesium carbonate, lithium carbonate, aluminum oxide and zirconium silicate according to a specific mass ratio. The preparation method comprises the following steps: mixing the raw materials, melting at 1300 + / -10 DEG C in a pure oxygen environment, and quenching after wiredrawing to detect a molten state. The matte glaze completely avoids the use of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are eliminated from the source, the fluorine content of the product is not detected through detection, and the limit value requirements of European Union REACH regulations are met. Zinc oxide and ZnO / TiO2 are added, so that the liquid phase viscosity is reduced, ion diffusion is accelerated, and the opacity (opacification performance) and gloss of the porcelain glaze are enhanced.

The invention discloses a fluoride-salt-free and nitrate-free cast iron enamel zirconium white glaze as well as a preparation method and application thereof, and belongs to the technical field of enamel. The zirconium white glaze is prepared from quartz, borax pentahydrate, magnesium carbonate, potassium carbonate, potassium feldspar, zinc oxide, aluminum hydroxide, calcium carbonate, zirconium silicate, sodium tripolyphosphate and lithium carbonate according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The zirconium white glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, and meanwhile, the zirconium white glaze has good porcelain surface, luster and firing adaptability, is suitable for cast iron matrixes, has the firing temperature of 740-760 DEG C and the firing time of 87-87 hours, and can be widely applied to cast iron substrates. The method can be used for producing green and environment-friendly enamel products.

The invention relates to the technical field of coatings, in particular to a coating suitable for niobium-silicon alloy surface high-temperature protection and a preparation method of the coating. The coating comprises the following raw materials in parts by weight: 100-120 parts of deionized water, 60-80 parts of nickel-chromium-aluminum-yttrium alloy powder, 60-80 parts of enamel glaze, 50-60 parts of filler, 20-40 parts of a binder, 10-20 parts of nano titanium dioxide and 6-10 parts of an additive. According to the invention, during preparation of the coating, through addition of the filler, the negative thermal expansion performance of zirconium tungstate in the filler and volume shrinkage of zirconium tungstate in a high-temperature state, a buffer space is provided for thermal expansion of other materials in the coating, cracks of the coating due to thermal stress are avoided, and the high-temperature resistance of the coating is improved; kH560 enhances the interfacial compatibility of zirconium tungstate, avoids agglomeration of zirconium tungstate, and enables the zirconium tungstate to be more uniformly distributed in a coating system.

The invention discloses fluoride-salt-free and nitrate-free low-temperature pearlescent glaze for steel plate enamel as well as a preparation method and application of the pearlescent glaze, and belongs to the technical field of enamel. The pearlescent glaze is prepared from quartz, anhydrous borax, titanium dioxide, magnesium carbonate, sodium tripolyphosphate, potassium carbonate, lithium carbonate, potassium feldspar, zinc oxide and V-26 according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The pearlescent glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, meanwhile, the pearlescent glaze has good porcelain surface, luster and low-temperature firing adaptability, is suitable for a steel plate matrix, has the firing temperature of 760-800 DEG C and the firing time of 10-20 minutes, and is suitable for a steel plate. The method can be used for producing green and environment-friendly enamel products.

The invention discloses fluoride-salt-free and nitrate-free low-temperature acid-resistant translucent glaze for steel plate enamel as well as a preparation method and application of the translucent glaze, and belongs to the technical field of enamel. The semitransparent glaze is prepared from quartz, anhydrous borax, titanium dioxide, trisodium phosphate, potassium carbonate, lithium carbonate, aluminum oxide, zinc oxide and sodium carbonate according to a specific mass ratio. The preparation method comprises the steps of raw material mixing, high-temperature melting under a pure oxygen condition, wiredrawing detection, quenching and the like. The semitransparent glaze is completely free of fluoride salt and nitrate, the problems of fluoride emission and environmental protection equipment blockage are avoided from the source, the fluorine content of the product is not detected through detection, the product meets the requirements of European Union REACH regulations, meanwhile, the product has good porcelain surface, luster and low-temperature firing adaptability, and is suitable for steel plate substrates, the firing temperature is 760-800 DEG C, and the firing time is 2-3 hours. The method can be used for producing green and environment-friendly enamel products.

The invention discloses a titanium-based enamel coating suitable for low-temperature firing and a preparation method of the titanium-based enamel coating, and belongs to the field of enamel material preparation and application. Wherein TA1 is adopted as the titanium alloy base material; the enamel frit provided by the invention is prepared by mixing and melting the following components in percentage by mass: 28 to 47.7 percent of quartz, 21.2 to 46.4 percent of boric acid, 10.5 to 13.6 percent of sodium carbonate, 5.4 to 6.9 percent of lithium carbonate, 3.8 to 4.4 percent of zinc oxide, 1.8 to 3.0 percent of barium carbonate, 2.6 to 5.5 percent of strontium carbonate and 0.5 to 1.0 percent of zircon quartz powder. The preparation method of the coating comprises the following steps: carrying out ball milling on the enamel frit, a small amount of clay, nitrite and water, spraying on the surface of a TA1 titanium substrate with a clean surface, drying, and sintering in a high-temperature furnace at 740-840 DEG C for 10 minutes; according to the titanium-based enamel coating obtained through the method, the firing temperature ranges from 740 DEG C to 840 DEG C, the coating is firmly combined with a base material, the temperature sudden change resistance is excellent, and the titanium-based enamel coating can bear the temperature difference impact of 700 DEG C.

This application relates to the field of metal surface treatment materials, specifically disclosing a silicon-integrated inorganic supercrystalline thermal energy powder and its preparation and application methods. The silicon-integrated inorganic supercrystalline thermal energy powder comprises raw material A and raw material B. Raw material A includes the following: magnesium oxide, sodium fluoroaluminate, sodium polyphosphate, zinc oxide, crystalline tin tetrachloride, silicon dioxide, and boric acid. Raw material B includes the following raw materials in parts by weight: spodumene, lithium carbonate, titanium dioxide, zinc silicate, sodium carbonate, antimony trioxide, albite, fluorite, boric acid, sodium hydroxide, and yttrium oxide. The inorganic supercrystalline thermal energy powder of this application has advantages such as corrosion resistance and oxidation resistance, good thermal stability, no damage from thermal cycling, high hardness, wear resistance and high temperature resistance, energy saving, water scale reduction, and the ability to replace organosilicon high-temperature resistant special coatings, baking paints, enamel paints, and ceramic floor glazes.

The utility model relates to the technical field of enamel stirring tanks, in particular to an enamel stirring tank for PVC weld seam sealant production, which comprises a shell and a scraper blade, the outer side of the shell is fixedly connected with supporting legs, the bottom ends of the supporting legs are fixedly connected with rubber pads, the top end of the shell is fixedly connected with a feed pipe close to the edge, and the feed pipe is connected with the scraper blade. The center of the top end of the shell is fixedly connected with a fixing frame, the top end of the fixing frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a coupler, and the other side of the coupler is fixedly connected with a rotating shaft. The enamel pot has the advantages that raw materials added into the enamel pot can be insulated, after the enamel layer is damaged, the raw materials can be in contact with the corrosion-resistant layer, the corrosion-resistant layer protects the enamel pot from being corroded by the raw materials, and the shell is located on the outermost side of the enamel pot, so that the whole enamel pot is protected, and external impact and the like are resisted.

The invention relates to the technical field of reaction kettles, and particularly discloses a stirring device of a glass-lined reaction kettle.The stirring device comprises an opening and closing mechanism, the opening and closing mechanism comprises a moving frame, a connecting arm, a fixing part, opening and closing parts and third elastic parts, the moving frame is rotationally connected with a rotating shaft through the connecting arm, the fixing part is connected to a stirring part, and the number of the opening and closing parts and the number of the third elastic parts are both two; the two opening and closing parts are connected with the movable frame through two third elastic parts correspondingly, the movable frame can move upwards in an inclined mode so that the two opening and closing parts can be away from each other under blocking of the fixed part, and the movable frame can further move downwards in an inclined mode so that the two opening and closing parts can get close to each other under the action of the two third elastic parts; according to the stirring device of the glass-lined reaction kettle, through continuous opening and closing of the two opening and closing parts, a liquid material close to an enamel coating is subjected to turbulent flow, and a buffer area is formed, so that the situation that a solid material causes large impact on the enamel coating is avoided.

An enamel rating process that aids determination of the location of a defect in a lacquer coating of a metal can by connecting the can to at least one contact of an external circuit; inserting an electrode into the can; filling the can with an electrolyte while applying a voltage to the electrode; and sensing any current flowing through the external circuit during filling of the can; wherein the level of the electrolyte upon sensing of a predetermined level of current flow is determined to identify the location of the defect.

The invention discloses an enamel composite board as well as a preparation method and application thereof. The preparation method specifically comprises the following steps: (1) carrying out sand blasting treatment, glaze spraying, high-temperature sintering, stacking placement and pre-pressing shaping on enamel steel plates; (2) the backing aluminum plate is subjected to sand blasting treatment; and (3) sequentially compounding the enameled steel plate, the aluminum honeycomb core and the backing aluminum plate by using an epoxy adhesive to obtain the aluminum honeycomb composite plate. The enamel composite board is excellent in performance, the bonding strength, the weather resistance and the flatness of the board are all remarkably improved, and the enamel composite board is suitable for interior decoration and can also be widely applied to building curtain walls, so that the application range of the enamel composite board is widened, and the economic value of the enamel composite board is improved.

The utility model discloses a reaction kettle which comprises an enamel reaction kettle body, a supporting frame is fixedly connected to the bottom of the enamel reaction kettle body, an inner cavity is formed in the enamel reaction kettle body, a top cover is arranged on the top of the enamel reaction kettle body, a speed reducing motor is installed on the top cover, and the speed reducing motor is connected with the supporting frame. A turning frame is fixedly connected to the output end of the gear motor and located in the inner cavity, fixing tables are fixedly connected to the outer side of the top cover and the outer side of the enamel reaction kettle body, and a first treatment box and a second treatment box are arranged on the two fixing tables respectively. According to the device disclosed by the utility model, some harmful gases generated after reaction can be subjected to catalytic reaction treatment through the catalyst filling layer in the treatment box I, so that the harmful gases become harmless gases, some water vapor in the gases is adsorbed and filtered through the adsorption layer, and then the gases can be purified through the purification layer in the treatment box II; and some pungent smells and the like in the gas are eliminated, so that the gas becomes normal gas.

The invention relates to the technical field of inner container detection, in particular to an enamel inner container appearance defect detection device and method.The enamel inner container appearance defect detection device comprises a working table, an abutting table, a clamping mechanism and a detection mechanism; the distance between the visual sensor and the surface of the inner container is controlled in the mode that the four balls abut against the surface of the inner container at the same time, it is ensured that the visual sensor is perpendicular to the area of a shot detection part, and the problem that the detection quality is affected due to the fact that the perpendicularity and distance deviation between the visual sensor and the area is too large is solved; secondly, the front abutting table and the rear abutting table abut against the inner container from the front side and the rear side of the inner container, so that the inner container is clamped and limited, the axis of the inner container and the set axes of the abutting tables are collinear, the perpendicularity and distance control process is assisted, and the mode that the corresponding balls avoid the protrusion defect is controlled through the distance sensors; the detection distance between the visual detector and the outer surface of the inner container is maintained, and it is ensured that the detection environment of the visual sensor meets the requirement under the condition.

The invention provides a solar enamel liner sealing performance testing device, and relates to the field of enamel liner sealing performance testing. A sliding seat is arranged in the base in a sliding manner; an auxiliary structure is fixedly arranged on the outer side of the sliding seat; a limiting assembly is fixedly arranged on the outer side of the sliding seat, and a limiting assembly is also fixedly arranged on the outer side of the auxiliary structure. A plugging structure is arranged on the inner side of the liquid pipe, and a testing assembly is fixedly arranged on the outer side of the plugging structure; by arranging the testing assembly, colored fine powder can be blown into the enamel inner container body through gas; when the enamel liner main body generates tiny leakage, colored fine powder can directionally escape from the leakage channel, and a high-contrast color mark mark is formed at a defect part; therefore, the colored fine powder can be utilized to accurately position the leakage point, the positioning accuracy of the leakage point is enhanced, and the problem that accurate positioning of the leakage point is difficult to realize is solved.

The utility model relates to the technical field of ovens, in particular to an oven oil stain storage device and an oven adopting the same, the oven oil stain storage device comprises an oil stain storage box and a sliding groove type supporting plate arranged below the oil stain storage box, the oil stain storage box is arranged on the sliding groove type supporting plate and can slide along the sliding groove type supporting plate, and the sliding groove type supporting plate is arranged on the sliding groove type supporting plate. The structure is simple, convenient and practical. The oven adopting the oven oil stain storage device comprises an oven body, an oven plate support arranged in the oven body, an oven plate arranged at the top of the oven plate support, an oven body enamel inner container arranged below the oven plate, a flow guide hole, a first opening and an oil stain storage box which are in one-to-one correspondence in space. Therefore, oil stains and residues flowing into the flow guide holes can conveniently and smoothly fall into the oil stain storage box. Oil stains can be conveniently stored, and the oil stain storage box can be conveniently cleaned.

The invention relates to a titanium-based enamel coating resistant to cold and hot impact and suitable for low-temperature firing and a preparation method thereof.The titanium-based enamel coating comprises enamel frits and grinding additives, and the grinding additives comprise titanium powder, aluminum silicate fibers, sodium nitrite, clay and water; the preparation method comprises the following steps: firstly preparing the enamel frit, then mixing the enamel frit with a grinding additive to obtain enamel glaze slip, then pretreating the titanium substrate to remove surface dirt, then carrying out wet spraying on the enamel glaze slip on the surface of the pretreated titanium substrate, and finally, sequentially drying and sintering the titanium substrate sprayed with the enamel glaze slip to obtain the titanium-based composite material. The titanium-based enamel coating is prepared. The titanium-based enamel coating resistant to cold and hot impact and suitable for low-temperature firing can bear 700 DEG C water cooling circulation for 22-26 times without ceramic cracking or falling off, and has excellent cold and hot impact resistance; during preparation, the preparation process is simple, and the firing temperature is 835-845 DEG C and is reduced by more than 60 DEG C compared with the prior art.

The invention discloses an enamel material and a preparation method thereof, and belongs to the technical field of enamel materials, and the enamel material comprises the following components in parts by weight: 100 parts of basic glaze, 5-7 parts of lithium-based bentonite, 1.2-2.2 parts of a carbon nanotube composite material, 0.1-0.5 part of an auxiliary agent, and 55-65 parts of deionized water. Wherein concentrated nitric acid and polyvinylpyrrolidone are added into carbon nanotubes to obtain non-covalent modified carbon nanotubes, and then the non-covalent modified carbon nanotubes are sequentially coated with nano titanium dioxide and nano silicon dioxide through a sol-gel method to obtain the carbon nanotube composite material. The method for preparing the enamel material comprises the following steps: firstly, pretreating a steel plate, then putting the basic glaze, the lithium-based bentonite, the auxiliary agent, the carbon nanotube composite material and the deionized water into an ultrasonic cleaning machine for ultrasonic dispersion for 40-60 minutes, grinding for 3-5 hours, sieving to obtain enamel glaze slip, uniformly coating the pretreated steel plate with the obtained enamel glaze slip, and drying to obtain the enamel material. And sintering in a vacuum high-temperature sintering furnace at a heating speed of 3-3.4 DEG C / min, preserving heat, and cooling to obtain the enamel material.

The utility model discloses an enamel reaction kettle for experiments, and relates to the technical field of enamel reaction kettles. The reaction kettle comprises a reaction kettle body, an outer cooling assembly for transferring heat outside the kettle body is fixedly installed on the surface of the reaction kettle body, a stirring mechanism is arranged at the top of the reaction kettle body, an inner cooling assembly for transferring heat in the kettle body is arranged in the stirring mechanism, and a rotatable water conveying assembly is arranged on the surface of the stirring mechanism. And the water conveying assembly is connected with the inner cooling assembly. Cold water is conveyed to the interlayer in the reaction kettle through the lower water inlet pipe, so that the outer side of a reactant is cooled, heat generated by reaction is absorbed, water absorbing the heat is discharged from the upper water outlet pipe, cooling water is conveyed to the stirring mechanism through the upper water conveying pipe, the water inlet ring and the lower water conveying pipe, and the cooling water flows between the stirring rod and the inner water discharging pipe. The stirring rod is fully filled, and along with rotation of the stirring rod, the inner side of a reactant is cooled, and heat generated by reaction is absorbed.

The subject of the invention is a method for obtaining curved glazing comprising (a.) providing a first glass sheet (10), coated on at least part of one of its faces with a stack of thin layers (12), (b.) a step of ablating said stack of thin layers (12) in a zone (13) called enameling zone, so as to perform partial ablation of said stack of thin layers (12) in said enameling zone (13), thereby creating a plurality of ablated zones (16) distributed in said enameling zone, (c.) a step of depositing, in the enameling zone, an enamel layer (14) on the surface of the stack of thin layers (12), then (d.) a step of bending the first glass sheet (10), the stack of thin layers (12) located under the enamel layer (14) being totally dissolved by said enamel layer (14) at least at the end of this step.

The invention discloses an anti-corrosion hydrogen conveying pipeline based on a stainless steel substrate and a preparation method of the anti-corrosion hydrogen conveying pipeline, and belongs to the technical field of marine industry metal materials. The anti-corrosion hydrogen conveying pipeline based on the stainless steel base body comprises a stainless steel base body pipe, an inner surface coating and an outer surface coating, wherein the inner surface coating and the outer surface coating are arranged on the stainless steel base body pipe. The inner surface coating sequentially comprises an enamel layer, a hydrogen-resistant layer and a transition layer from inside to outside; the outer surface coating sequentially comprises a transition layer, a first anti-corrosion layer and a second anti-corrosion layer from inside to outside. By arranging the inner surface coating and the outer surface coating, the technical effects of internal hydrogen resistance and external corrosion resistance are achieved; the transition layer enhances the binding force between the hydrogen-resistant layer and the stainless steel substrate and the binding force between the first anticorrosive layer and the stainless steel substrate; the hydrogen-resistant layer and the enamel layer jointly realize comprehensive hydrogen permeation resistance; under the combined action of the first anti-corrosion layer and the second anti-corrosion layer, the stainless steel base body seabed hydrogen conveying pipeline can adapt to the seabed working environment and has high corrosion resistance.