407 results about "Nanoceramic" patented technology

The invention relates to the technical field of capacitor films. The invention discloses a preparation process of a multilayer polypropylene capacitance film, which comprises the following steps: S1, raw material preparation: preparing basic resin, a nano ceramic filler, a nucleating agent and an antioxidant into multilayer raw materials respectively; s2, fusing multiple layers of raw materials by an independent screw extruder, and compounding by a co-extrusion die head to form a film blank; and S3, carrying out air ring gradient cooling on the film blank. And S4, longitudinally and transversely stretching the film blank. And S5, performing heat setting in a segmented heating furnace, and performing corona treatment to improve surface energy. And S6, segmentally curing the moisture-proof coating by using an infrared oven. The multilayer heterostructure is adopted, the comprehensive performance of the capacitor film is improved through material matching, the dielectric constant, the breakdown strength and the moisture resistance are enhanced, and the problem of considering the dielectric property and the mechanical property is solved. The innovative process guarantees stable performance, is compatible with an existing production line, can realize large-scale production, meets the requirements of fields such as new energy and the like, and provides a feasible scheme for localization of high-performance capacitor films.

The invention relates to the technical field of nano ceramic materials, and particularly discloses a self-cleaning antibacterial functional ceramic which is prepared by the following steps: S1, mixing titanium dioxide powder, a composite binder, functional gel, a plasticizer and a solvent, and performing ball milling for 18-20 hours to obtain composite slurry; s2, putting the composite slurry into a mold, and carrying out mold pressing and drying to obtain a green body; and S3, placing the green body in a high-temperature sintering furnace, carrying out high-temperature sintering, and cooling to room temperature to obtain the self-cleaning antibacterial functional ceramic, according to the invention, functional gel and a composite binder are added, and the functional gel is obtained by mixing and reacting composite modified nano zinc oxide, a cross-linking agent and an alumina precursor; the composite binder is prepared by mixing a polyvinyl alcohol aqueous solution, an aluminum dihydrogen phosphate aqueous solution, silica sol and a tackifying component, and through the synergistic effect of the substances, the mechanical property and the antibacterial property of the functional ceramic are improved.

The invention discloses a double-component reinforced 5Y-PSZ dental ceramic material and a preparation method thereof, and relates to the technical field of ceramic material preparation. The method comprises the following steps: mixing ZrCl4 and deionized water, and dropwise adding an ammonia water solution to prepare m-ZrO2 nano ceramic powder; zrOCl2. 8H2O, Y (NO3) 3.6 H2O and deionized water are mixed, the m-ZrO2 nano ceramic powder and polyethylene glycol 2000 are added, and the material is prepared through calcination, spray granulation, hot-pressing presintering and high-temperature sintering. According to the 5Y-PSZ dental ceramic material disclosed by the invention, the nano-scale m-phase ZrO2 is adopted as a reinforcing material and is dispersed and distributed inside the 5Y-PSZ, and through volume expansion generated by t-m phase change of the m-phase ZrO2, the anti-aging performance is guaranteed, and meanwhile, the reinforcement of the 5Y-PSZ dental ceramic material is realized. The invention solves the problem of insufficient strength of the 5Y-PSZ dental ceramic material in the prior art.

The invention discloses a production process of high-strength anti-distortion cold-rolled strip steel. The production process comprises the links of raw material preparation, cold rolling, heat treatment, surface treatment and quality detection. Selecting medium-carbon steel with specific components as raw materials, and controlling the tolerance of hot-rolled strip steel; a six-roller unit is adopted for multi-pass rolling in cold rolling, and a plate shape control technology is matched; continuous annealing and gradient quenching-isothermal tempering are applied to heat treatment, so that a specific structure gradient is formed, and the distortion rate is reduced; the surface is subjected to acid pickling, hot galvanizing and a nano ceramic composite coating, so that the corrosion resistance and the wear resistance are improved; and the quality is guaranteed through online detection and sampling inspection. The strip steel produced through the technology is high in strength, good in toughness, high in corrosion resistance and suitable for the high-requirement field.

The invention belongs to the technical field of thermal power heating surface treatment, and provides a multi-layer composite self-repairing anti-oxidation coating for a boiler heating surface and a preparation method of the multi-layer composite self-repairing anti-oxidation coating aiming at the technical problems that a thermal power boiler heating surface protective coating is insufficient in bonding strength, insufficient in long-term anti-oxidation capacity and concentrated in interface stress among multi-layer structures. Comprising a bonding layer, a gradient transition layer, a self-repairing functional layer and a ceramic surface layer which are sequentially arranged from inside to outside. The self-repairing functional layer is made of NiCoCrAlY alloy, the bonding layer is made of NiCrAlY alloy, the gradient transition layer comprises four layers of gradient transition layer units, each layer of gradient transition layer unit comprises a gradient composite structure of NiCrAlY and nano Al2O3, the self-repairing functional layer comprises NiCoCrAlY serving as a base body, thermal response type microcapsules are embedded in the NiCoCrAlY base body, and the ceramic surface layer comprises a nano ceramic material composed of Cr, Co, Ni, Fe, Al, Ti and B elements.

The invention relates to the technical field of wind power and power grid equipment anti-icing, and discloses a fluorosilicone oil microcapsule anti-icing coating for wind power and power grid equipment. Comprising the following components which are independently subpackaged: a component A, namely a nano ceramic pre-dispersion: 20-30 parts of methyltrimethoxysilane, 5-8 parts of tetraethoxysilane, 40-60 parts of isopropanol and 10-15 parts of silicon dioxide nanoparticles with perfluoroalkyl grafted on the surfaces; the component B is microcapsule dry powder: 25-40 parts of mesoporous alumina microcapsules filled with fluorosilicone oil, 1-4 parts of amino modified carbon nanotubes and 2-5 parts of an oxygen vacancy defect type titanium dioxide photocatalyst, the microcapsules are triggered to release the fluorosilicone oil through the volume expansion rate of a thermal expansion layer and stress sensitive layer composite wall material at low temperature, and meanwhile, when ice pressure exists, the stress sensitive layer can release the fluorosilicone oil, so that the stress sensitive layer can release the fluorosilicone oil. And the polydopamine-coated aluminum oxide layer is elastically deformed to synergistically release the fluorosilicone oil to form a dual-mode anti-icing mechanism.

The invention belongs to the technical field of preparation of high polymer materials, and provides a preparation method of a wear-resistant high polymer material which comprises a nano ceramic layer and a dual-network polymer matrix which are distributed in a gradient manner, the gradient distribution nano ceramic layer is formed by surface-functionalized Al2O3-Si C hybrid nanoparticles in concentration gradient distribution in the longitudinal direction of the material, the dual-network polymer matrix is formed by cross-linking polyurethane and epoxy resin through an interpenetrating network structure, a polyurethane phase provides elasticity, and an epoxy resin phase provides rigidity; according to the preparation method, gradient mechanical property optimization can be achieved, and excellent interfacial compatibility and an efficient preparation process are achieved.

The invention belongs to the technical field of thermal power heating surface treatment, and provides a boiler heating surface high-temperature corrosion protective coating and a preparation method thereof in order to solve the technical problems that in the prior art, a nano ceramic coating and a metal alloy coating for treating thermal power boiler heating surface high-temperature corrosion are insufficient in adhesive force, prone to falling off and short in protection service life. Through multi-layer structure design and technological parameter optimization, a coating system has continuous thermal expansion coefficient gradient distribution in the interval of 500-900 DEG C, the metal bonding layer at the bottom layer has a pore structure which can effectively absorb thermal stress, the nano ceramic layer at the surface layer can maintain high-temperature stability, and it is verified that the overall bonding strength is larger than or equal to 35 MPa, and the thermal expansion coefficient is larger than or equal to 10%. Compared with a traditional single-layer coating, the adhesive force is improved by 200% or above, and therefore the technical problems that in the prior art, adhesive force is insufficient, thermal stress is not matched, and high-temperature softening fails can be effectively solved.

The invention relates to the technical field of radiation protection equipment, and provides a multi-scale self-adaptive fixing system for a lead plate, in the aspect of lead plate fixing, through a three-degree-of-freedom structure and a precise force control system of a shape memory alloy driving clamp, the clamping angle and force can be adjusted in a self-adaptive manner, the plastic deformation of the lead plate is effectively avoided, and the service life of the lead plate is prolonged. The problem that a traditional clamp is poor in fixing precision is solved. And due to the innovative structure of the modular quick connection assembly, the assembly and the disassembly are convenient, the seam leakage rate is greatly reduced, and the radiation protection performance is improved. In terms of environmental adaptation, the temperature and humidity cooperative control system can accurately adjust the temperature of the lead plate, and the self-repairing nano ceramic anti-corrosion coating can effectively isolate corrosion ions and automatically repair the coating. The intelligent monitoring and early warning system utilizes a multi-dimensional sensor, edge calculation and digital twinning technology to monitor the state of equipment in real time, quickly diagnose faults and perform graded early warning, so that the safe and stable operation of the system is guaranteed, and the reliability and the intelligent level of the equipment are greatly improved.

The invention relates to the technical field of battery materials, in particular to a para-aramid lithium battery diaphragm and a preparation method thereof. The para-aramid lithium battery diaphragm comprises para-aramid slurry and a base membrane, the para-aramid slurry is coated on the two sides of the base membrane to form para-aramid coatings, and the para-aramid slurry comprises the following raw materials in parts by weight: 20-40 parts of modified para-aramid polymer liquid, 10-20 parts of nano ceramic composite material powder and 10-18 parts of a solvent; the nano ceramic composite material powder is prepared from the following raw materials in parts by weight: 50 to 100 parts of nano aluminum oxide, 8 to 12 parts of nano zirconium dioxide, 0.3 to 0.8 part of yttrium oxide, 1 to 5 parts of magnesium nitrate hexahydrate, 0.1 to 1 part of polyacrylic acid, 1 to 2 parts of ammonia water, 1 to 3 parts of coupling agent and 20 to 30 parts of silicon dioxide; the nano ceramic composite material powder is added into the para-aramid slurry, so that the para-aramid diaphragm has better thermal stability, and the phenomenon of thermal shrinkage of the diaphragm at high temperature is reduced.

The invention belongs to the technical field of composite material manufacturing, and discloses a structural battery integrated composite board and a forming method and application thereof. According to the composite board, carbon fiber reinforced materials are adopted as positive and negative electrodes, glass fiber materials are adopted as a diaphragm and an insulating layer, epoxy resin-based solid-state structure electrolyte is adopted as a bonding packaging medium, and a curing agent, ionic liquid, electrolyte lithium salt, nano ceramic particles and other auxiliaries of specific types and proportions are introduced into epoxy resin; the multifunctional modification of the resin matrix is realized. And meanwhile, doping and surface grafting modification are performed on the electrode material, so that the energy density and the mechanical strength of the battery are improved. And further constructing a low-temperature formed metal or carbon-based circuit layer on the outer surface of the structural battery to form an integrated complex comprising the circuit board, the structural battery and the bearing structure. The composite board satisfies dielectric insulation and reliability, realizes integrated energy supply and signal processing, and is widely applied to weight and volume sensitive fields such as aerospace and new energy automobiles.

The invention discloses an insulating nano ceramic resin composite coating. The preparation method comprises the following steps: 1, mixing methyl methacrylate and butyl acrylate, and dropwise adding the mixture into an aqueous solution containing an emulsifier, an initiator and a buffer agent under a protective atmosphere for reaction to obtain a seed emulsion; and 2, emulsifying the modified filler, methyl methacrylate, butyl acrylate, an emulsifier and water, adjusting the pH value, and dropwise adding into the seed emulsion and the initiator under a protective atmosphere to react. And then cooling and adding a redox initiation system for continuous reaction to finally obtain the composite coating. The preparation method has the beneficial effects that the hexagonal boron nitride nanosheets are subjected to surface functionalization treatment by synthesizing a multifunctional modifier, so that the dispersity and interface bonding performance of filler in a resin matrix are remarkably improved, and the coating has excellent insulativity, strong adhesive force, good flame retardance and outstanding corrosion resistance at the same time.

The invention discloses a preparation method of a MgO-MgA12O4-ZrO2 nano ceramic eutectic composite material. The preparation method comprises the following steps: S1, preparing powder; s2, flash firing preparation; and S3, high-temperature melting preparation. According to the invention, two technologies of flash sintering and high-temperature melting are combined, the problems of high sintering temperature, easy growth of crystal grains, difficult densification and the like of the traditional eutectic ceramic are solved, and an excellent composite material with a nanoscale eutectic structure is finally obtained; a nanocrystalline blank obtained through flash sintering is crushed and then subjected to high-temperature melting, microdefects and air holes possibly existing in the flash sintering blank are eliminated, the chemical components and the microstructure of a final product are more uniform, and compared with traditional selective laser melting, the method is more convenient and faster to implement and lower in cost.

The invention discloses a high-temperature-resistant maintenance-free nano dust filtration system and method, and belongs to the technical field of dust filtration systems. The system comprises a dust filtering main body, a nano ceramic filter element assembly, an automatic blowback system and a control system. The nano ceramic filter element is sequentially provided with an outer coarse filter layer, a middle medium filter layer and an inner fine filter layer from outside to inside, so that a radial gradient aperture structure is formed, and graded interception of dust is realized. The automatic blowback system is configured in a way that double electromagnetic pulse valves are connected in series to form double-peak collaborative blowback airflow which is firstly subjected to high-pressure impact stripping and then is subjected to high-flow removal. The control system continuously collects pressure difference data and calculates the pressure difference change rate, the remaining time for reaching a pressure difference threshold value is predicted according to the pressure difference change rate, the back flushing triggering opportunity is judged, self-adaptive dust removal control is achieved, meanwhile, the pressure difference recovery rate before and after back flushing is calculated, and back flushing parameters are automatically adjusted. According to the invention, high-efficiency purification of high-temperature dust-containing gas and long-term maintenance-free operation of the system are realized, and the service life of the filter element is remarkably prolonged.

The invention relates to the technical field of special functional coatings, in particular to a water-based environment-friendly coating with high-temperature resistance, corrosion resistance and high-temperature discoloration resistance as well as a preparation method and application of the water-based environment-friendly coating. The coating comprises the following components in parts by weight: 100 parts of modified silica sol-organic silicon hybrid resin, 10-30 parts of nano ceramic powder, 15-25 parts of layered silicate, 5-15 parts of a composite corrosion inhibitor, 1-3 parts of a fumed silica thixotropic agent and 20-40 parts of deionized water. Mixing the modified silica sol-organic silicon hybrid resin with deionized water, and uniformly stirring and dispersing; the preparation method comprises the following steps: premixing the high-temperature-resistant inorganic toner and the rare earth stabilizer, sequentially adding the nano ceramic powder, the layered silicate, the composite corrosion inhibitor and the fumed silica thixotropic agent, and dispersing at a high speed for 30-60 minutes; grinding until the fineness is less than or equal to 20 microns, and filtering to obtain the coating. The water-based paint is especially suitable for petrochemical reaction kettles, high-temperature pipelines and other harsh environments requiring long-term appearance maintenance, and the technical problems that traditional water-based paint is insufficient in temperature resistance, prone to corrosion and discoloration and the like are solved.

The invention relates to the field of plastic trays, and discloses a modified material of a shared plastic tray and a preparation method of the modified material. The modified material comprises the following raw materials in parts by weight: 60-80 parts of high-density polyethylene, 10-20 parts of polypropylene, 5-15 parts of reinforced fibers, 0.5-1.5 parts of an antioxidant, 0.3-1.0 part of an ultraviolet light absorber, 0.5-1.0 part of a coupling agent, 2-5 parts of an inorganic filler, 0.5-1.0 part of a lubricant and 1-2 parts of a heat stabilizer, and the reinforced fibers are composed of chopped glass fibers and chopped carbon fibers. By adding the antioxidant and the ultraviolet light absorber, oxidation free radicals are effectively captured, ultraviolet energy is absorbed, material degradation is inhibited, meanwhile, an aluminum oxide-silicon dioxide composite nano ceramic coating formed through surface strengthening treatment further blocks erosion of ultraviolet rays and the external environment to the material, and the aging resistance of the tray is remarkably improved.

The invention discloses a magnetic suspension rotor impeller, a pump head and a magnetic suspension pump, the magnetic suspension rotor impeller comprises a rotor main body and a magnetic suspension rotor, the rotor main body is cylindrical, a first cavity is formed in the rotor main body, and the magnetic suspension rotor is sealed in the first cavity; the magnetic suspension rotor comprises a rotor magnet and a nano ceramic composite coating, and the nano ceramic composite coating comprises a metal coating in contact with the rotor magnet and a nano ceramic coating arranged outside the metal coating. By forming the nano ceramic composite coating on the surface of the rotor magnet, the problem that the plastic coating cannot play a role in protection due to damage to the plastic coating in the assembly process is solved, so that the service life of the magnetic suspension rotor impeller can be prolonged, metal coating ions are prevented from being separated out to pollute a pumping medium, and the cleanliness of the pumping medium is ensured.

The invention relates to the technical field of special low-carbon building materials, in particular to high-performance anti-penetration concrete and a preparation method thereof.The high-performance anti-penetration concrete is prepared by taking industrial solid waste as a cementing material, taking waste nano ceramic balls, carbonized steel slag coarse aggregate and modified steel slag fine aggregate as aggregate and matching basalt fiber, wollastonite fiber and nano carbon fiber for composite toughening; a water reducing agent and a retarder are added as additives, so that the high-performance anti-penetration concrete which is good in fluidity, high in mechanical property and excellent in anti-penetration performance is prepared.

The invention relates to the technical field of battery diaphragms, and discloses a low-temperature lithium battery diaphragm material containing a nano ceramic material, and a preparation method of the low-temperature lithium battery diaphragm material containing the nano ceramic material comprises the following preparation steps: mixing a modified nano ceramic material, modified lamellar graphene oxide, a binder and deionized water to obtain mixed slurry; spraying the mixed slurry onto the upper and lower surfaces of a polyolefin diaphragm, drying and curing to obtain the lithium battery diaphragm material. The modified nano ceramic material and the modified lamellar graphene oxide are coated on the polyolefin diaphragm, and the prepared lithium battery diaphragm material has relatively high temperature resistance and mechanical property.

The application provides a preparation method of laser additive manufacturing crack-free Ni3Al-based high-temperature alloy, comprising the following steps: (1) uniformly mixing micron-sized Ni3Al-based high-temperature alloy powder and nano Hf ceramic particles, so that the nano Hf ceramic particles are uniformly wrapped on the surface of the micron-sized Ni3Al-based high-temperature alloy powder, to obtain a composite powder; (2) drying the composite powder; (3) layer-by-layer melt forming the composite powder by using a laser directional deposition device, to obtain the laser additive manufacturing crack-free Ni3Al-based high-temperature alloy. The application also provides the laser additive manufacturing crack-free Ni3Al-based high-temperature alloy prepared by the method. The preparation method of the laser additive manufacturing crack-free Ni3Al-based high-temperature alloy can prepare the crack-free Ni3Al-based high-temperature alloy by the laser additive manufacturing method, and is simple in preparation and low in cost.

This invention discloses a method for preparing high-strength aluminum-magnesium-manganese alloy materials, belonging to the field of metallic materials technology. The method uses aluminum as a matrix and adds elements such as magnesium, manganese, zinc, copper, zirconium, and titanium to prepare a master melt. A nano-ceramic suspension of yttrium oxide is prepared, atomized and dried into powder, and blown into the melt to introduce nanoparticles. Semi-continuous casting, homogenization heat treatment, intense plastic deformation such as equal-diameter angular channel extrusion, hot rolling, and aging treatment are employed to achieve nanoparticle dispersion strengthening. Optimizations include nanoparticle replacement, multiphase strengthening, parameter adjustment, and in-situ phase formation, which refine the alloy grain to 80-200 nm, significantly improving strength. Compared with existing technologies, this invention's process is environmentally friendly and precisely controlled, suitable for high-strength applications such as inverter housings, achieving a tensile strength of over 450 MPa and an elongation ≥10%.

This utility model relates to an industrial electronic wire in the field of electronic wires, comprising a split stepped conductor, an insulating layer, and a composite shielding layer. The insulating layer is disposed on the outside of the split stepped conductor, and the composite shielding layer is disposed on the outside of the split stepped conductor. The split stepped conductor comprises a corrugated conductor, a first copper core, and a second copper core, with the first and second copper cores spirally wound in opposite directions on the surface of the corrugated conductor. The insulating layer comprises a layer of nano-ceramic modified polyolefin, an aramid fiber reinforced epoxy resin layer, and a fluororubber layer, all layered and laminated. The aramid fiber reinforced epoxy resin layer has embedded protrusions. The composite shielding layer comprises a tin-plated copper wire braided mesh, an aluminum foil strip, and a hot-melt conductive adhesive, with the tin-plated copper wire braided mesh and the aluminum foil strip spirally wound alternately. This utility model enhances mechanical strength through the split stepped conductor structure, and improves interface bonding and electromagnetic shielding durability through multi-layer composite and anchoring design.

The utility model discloses nano ceramic coating equipment with a reciprocating mechanism, which comprises a table body, a movable carrying table, a main frame body, a reciprocating driving mechanism and a coating roller, the main frame body is fixed at the top end of the table body, a bracket is arranged in the main frame body, the coating roller is rotatably arranged at the bottom of the bracket, and the reciprocating driving mechanism is arranged on the movable carrying table. The reciprocating driving mechanisms are arranged on the two sides of the top of the main frame body, each reciprocating driving mechanism comprises a movable frame, upper protruding teeth, upper limiting teeth, lower protruding teeth and lower limiting teeth, the movable frames are arranged on the top of the main frame body, the upper protruding teeth are fixed to the inner wall of the top of each movable frame, and the upper limiting teeth are fixed to one sides of the upper protruding teeth; the lower protruding teeth are fixed to the inner wall of the bottom of the movable frame, the lower limiting teeth are fixed to one sides of the lower protruding teeth, and the movable carrying table is arranged on the surface of the table body. The coating device is high in coating efficiency, good in effect and convenient to use, products can be conveniently fixed, and the automatic feeding function is achieved.

The invention discloses a gradient strengthening preparation method of a cast high-entropy alloy composite material based on a laser cladding preform, and belongs to the technical field of metal matrix composite material preparation. The method comprises the following steps: firstly, preparing composite powder of a high-entropy alloy and a nano ceramic reinforced phase by combining plasma-assisted ball milling with a pulse electromagnetic field; then constructing a prefabricated body with a gradient pore structure by adopting an intelligent regulation and control laser cladding technology; the prefabricated body and a congruent-component high-entropy alloy cast ingot are innovatively metallurgically bonded through a vacuum gradient infiltration process, and a large-size overall composite material is prepared; and finally, forming a gradient nanostructure on the surface layer of the material through ultrasonic-assisted laser surface reconstruction and small-deformation gradient heat treatment. According to the method, the technical problems that reinforcing phases are uneven in distribution, the interface bonding strength is low, and large-size components are difficult to prepare are successfully solved, the prepared composite material has the excellent gradient performance that the surface hardness is larger than or equal to 12 GPa, and the core hardness is larger than or equal to 8 GPa, ceramic particles are evenly distributed in a three-dimensional network shape, the 800-DEG C high-temperature oxidation resistance is improved by 30% or above compared with a traditional high-entropy alloy, and the composite material is suitable for large-size components. The method is particularly suitable for manufacturing high-performance key components in the fields of aerospace, national defense and military industry and the like.

The invention provides a locking ring type synchronizer conical surface composite texture optimized multi-gear gearbox structure. The locking ring type synchronizer conical surface composite texture optimized multi-gear gearbox structure is characterized in that a gearbox is composed of a shell, an input shaft assembly, an output shaft assembly, a gear transmission mechanism, a synchronous gear shifting mechanism and a lubricating and cooling system. The shell is designed by integrating light-weight aluminum alloy and nano ceramic radiating fins, the input / output shaft improves the transmission stability through a high-precision bearing and an overload protection structure, the gear transmission mechanism optimizes the efficiency through a modification straight gear and a planetary gear train, and the synchronous gear shifting mechanism is connected with an electronic sensor through a composite texture lock ring. According to the gearbox, the problems that a traditional gearbox is insufficient in heat dissipation, large in gear shifting impact, low in lubricating efficiency and the like are solved, transmission efficiency is improved, and the gearbox is suitable for high-end equipment such as new energy automobiles and heavy machinery.

The invention discloses a nano ceramic anti-corrosion heat-dissipation coating, and belongs to the technical field of coatings. Comprising a paint component A and a curing agent component B, wherein the paint component A comprises the following raw materials in parts by weight: 40-60 parts of modified epoxy resin, 15-20 parts of modified ceramic powder, 35-55 parts of a solvent, 0.6-1.2 parts of a dispersing agent, 0.3-0.6 part of a defoaming agent and 0.2-0.4 part of a flatting agent. According to the coating prepared by the invention, four ceramic fillers are introduced, so that the heat dissipation performance and the corrosion resistance of the coating can be remarkably improved; ceramic powder is subjected to surface modification through a silane coupling agent, so that the dispersity and interface bonding force of filler in a resin matrix are improved, and the overall performance is improved; the epoxy resin is modified, so that the corrosion resistance and heat resistance of the coating are further improved; in conclusion, the anti-corrosion heat dissipation coating successfully integrates the anti-corrosion function and the heat dissipation function, and the problem that the anti-corrosion performance and the heat dissipation performance of a traditional coating are difficult to consider at the same time is solved.

The application provides a compressor and a refrigeration device, the compressor comprising a cylinder body, a crankshaft, a sliding vane and a roller, a cylinder chamber being formed in the cylinder body, the roller, the sliding vane and an eccentric part of the crankshaft being located in the cylinder chamber, the roller being installed on the eccentric part, the sliding vane abutting against an outer peripheral wall of the roller, and a refrigeration oil being arranged at the bottom of the cylinder chamber. At least one of the outer peripheral wall of the roller and an end wall of the sliding vane is provided with a nano ceramic coating. In the material for forming the nano ceramic coating, the content of zirconium oxide is 80-90% by weight percentage, the content of aluminum oxide is 9-20% by weight percentage, the content of silicon oxide is 0-1% by weight percentage, the content of titanium oxide is 0-1% by weight percentage, and the content of magnesium oxide is 0-1% by weight percentage. The refrigeration oil comprises a base oil and an additive, the additive comprising a polyamide ester, and the content of the polyamide ester in the refrigeration oil is 3-5% by weight percentage. The refrigeration oil in the compressor can effectively reduce the friction and agglomeration between particles and realize uniform dispersion of the particles.

The invention relates to the technical field of ignition guns for coke oven ascension pipes, in particular to a quick-ignition and strong-wind-resistance nanometer ceramic heating body ignition gun for a coke oven ascension pipe. Comprising a porous protective gun head, a 90-degree bent gun body and a junction box which are connected in sequence, the nano ceramic crystal heating body is arranged in the porous protective gun head and is used for raising the temperature to 800 DEG C or above within 2 seconds; a plurality of vent holes distributed in an annular array are formed in the front end of the porous protective gun head, so that wind-resistant flames are formed; the gun body bent by 90 degrees comprises an inner heat insulation layer and an outer gun barrel arranged outside the inner heat insulation layer in a sleeving mode, and a heat insulation gap is formed between the inner heat insulation layer and the outer gun barrel. The junction box is of a modular structure and is arranged at the tail end of the gun body. The device can be quickly started, has strong wind interference resistance and extreme high temperature resistance, and is convenient to maintain.

The application discloses a control system for inhibiting coking of a heating surface of a coal-fired boiler, and the control system comprises a first temperature measuring device for monitoring the flue gas temperature at the inlet of a partition screen superheater, a second temperature measuring device for monitoring the flue gas temperature at the inlet of a final-stage superheater, a third temperature measuring device for monitoring the flue gas temperature at the inlet of a final-stage reheater, and a nano-ceramic material spraying layer arranged on a water cooling wall; wherein, based on the initial temperature data monitored by the first temperature measuring device, the second temperature measuring device and the third temperature measuring device, the area of the nano-ceramic material spraying layer is set so that the water cooling wall has a suitable range of heat absorption, the flue gas temperature at the inlet of the partition screen superheater is T1, the flue gas temperature at the inlet of the final-stage superheater is T2, and the flue gas temperature at the inlet of the final-stage reheater is T3, thereby inhibiting the coking of the heating surface of the coal-fired boiler.

The invention relates to the technical field of coatings, in particular to an MOFs enhanced nano ceramic coating material, a preparation method and application of the MOFs enhanced nano ceramic coating material to a heat insulation film. The preparation method comprises the following steps: firstly, coating the surface of Al2O3 / ZrO2 nano composite ceramic with ZIF-8 through an in-situ growth method to form MOFs enhanced nano ceramic composite powder with a core-shell structure; performing amino modification by using an amino silane coupling agent, and grafting polyacrylic acid by using an amidation reaction catalyzed by DCC / DMAP (dicyclohexylcarbodiimide / dimethylaminopyridine), so as to obtain surface carboxylated modified nano ceramic composite powder; and finally, mixing and dispersing the modified powder with organic silicon resin containing hydroxyl functional groups, a polyvinylpyrrolidone dispersing agent, a polyether modified polydimethylsiloxane flatting agent, a polyoxyethylene polyoxypropylene glycerol ether defoaming agent and ethanol to obtain the MOFs enhanced nano ceramic coating material. The coating has low thermal conductivity and high mechanical strength, and the powder has good dispersion stability in the coating, so that the coating can be widely applied to the field of heat-insulating films.