1206results about How to "Prevent precipitation" patented technology

The invention provides antibacterial polypropylene plastic, and aims to obtain a composite antibacterial agent with the advantages of an inorganic antibacterial agent and an organic antibacterial agent by compounding the inorganic antibacterial agent and the organic antibacterial agent, and the antibacterial polypropylene plastic which is good in antibacterial property, good in migration resistance, good in mechanical property, good in mechanical property, good in mechanical property and the like is obtained by adding the obtained composite antibacterial agent into the polypropylene plastic. The invention discloses antibacterial polypropylene plastic with long-acting antibacterial property.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a high-strength flame-retardant composite material for pipelines and a preparation method thereof. The high-strength flame-retardant composite material for the pipeline is prepared from the following components in parts by weight: 70 to 80 parts of PA12T, 10 to 15 parts of a toughening agent, 20 to 30 parts of fiber reinforced filler, 8 to 16 parts of melamine polyphosphate, 1 to 6 parts of attapulgite, 2 to 4 parts of graphene, 0 to 3 parts of a coupling agent, 0 to 3 parts of a lubricating agent and 0 to 3 parts of an antioxidant. MPP is an N and P double-element synergistic flame retardant, and the flame retardant effect is better. Through the adsorption effect of the attapulgite, the dispersing performance of the MPP in the PA12T can be improved, and the precipitation phenomenon of the MPP can be prevented. The graphene is used as a common flame-retardant carbon-forming agent, and the lamellar structure of the graphene can play a role in resisting molten drops; and moreover, the graphene and the attapulgite with a rodlike structure interact with each other, so that the dispersion performance of the graphene, the attapulgite and the melamine polyphosphate in the nylon resin is promoted.

The invention relates to a high-toughness corrosion-resistant aluminum alloy and a preparation method thereof. The high-toughness and corrosion-resistant aluminum alloy is prepared from the following components in percentage by mass: 3.5 to 4.6 weight percent of Mg, 1.3 to 1.5 weight percent of Zn, 0.1 to 0.4 weight percent of Sc, 0.4 to 0.5 weight percent of Zr, 0.4 to 0.5 weight percent of Cu and the balance of Al. The optimized preparation method comprises the steps that aluminum alloy mixed powder serves as a raw material, laser additive manufacturing is adopted, and a printed product is obtained through printing; during printing, the laser power is controlled to range from 250 W to 350 W, the laser scanning speed ranges from 800 mm / s to 1200 mm / s, the laser spot diameter ranges from 60 micrometers to 80 micrometers, the scanning interval ranges from 0.02 mm to 0.05 mm, and the powder laying thickness ranges from 0.03 mm to 0.05 mm. Based on a cross alloy design strategy, the in-situ alloying powder manufacturing technology and the laser powder bed melting technology are combined, collaborative optimization of the mechanical property and the corrosion resistance is achieved, meanwhile, the material development and preparation cost is effectively reduced, and the application requirements of multiple fields are met.

The invention discloses a flue gas emission continuous monitoring device and a monitoring method, and relates to the technical field of flue gas emission, the device realizes gas inlet detection and multidirectional gas inlet and gas exhaust of cleaning pipelines and parts through a U-shaped gas inlet pipe, a preheating pipe, a first gas return pipe, a first gas inlet pipe, a gas collection chamber, a condensation pipe, a liquid collection chamber and a second gas return pipe; preheating and heat preservation are achieved through air inlet and air outlet, heat preservation measurement is achieved in the heat preservation shell, pipelines and parts, interference of temperature, oil and particulate matter is effectively reduced, and the monitoring precision is improved; the laser scattering sensor is used for measuring the concentration and the particle size of particulate matters, the optical fiber measuring unit is used for monitoring other components in flue gas, and real-time monitoring and emission component analysis of the flue gas are realized by collecting released liquid and measuring substances dissolved in the liquid; the problems that smoke monitoring is easy to interfere, detection data are easy to fluctuate, and a multi-operation-mode switching technology of a detection device is lacked, so that the smoke monitoring precision is low are solved.

The invention relates to the technical field of welding devices, in particular to an aluminum alloy door and window welding machine which comprises a mounting support, an air cylinder is mounted at the upper end of the mounting support, an output shaft of the air cylinder penetrates through the mounting support, and a welding mechanism is mounted on the output shaft of the air cylinder and comprises a first mounting plate fixedly connected with the output shaft of the air cylinder. An exhaust mechanism is mounted on the other side of the first mounting plate, four sets of first electric telescopic rods are mounted on the inner side of the mounting support, clamping mechanisms are mounted on output shafts of the first electric telescopic rods, and welding seams between arc-shaped window frames can be welded through mutual cooperation of second electric telescopic rods and first welding heads; and welding can be conducted on inner side welding seams of the assembling grooves, welding is more comprehensive, connection between the arc-shaped window frames is more stable, through mutual cooperation of a fourth gear and a third electric telescopic rod, comprehensive cleaning is conducted on the peripheries of the welding seams, cracks and bubbles during welding are avoided, and the welding seams are firmer.

The invention relates to the technical field of hardware machining, and discloses a drilling machine for precise hardware machining and a using method thereof.The drilling machine comprises a containing table, a connecting frame is fixedly connected to the top of the containing table, two clamping blocks are slidably connected to the top of the containing table, and an electric telescopic rod is started to push a sliding block to descend; when a workpiece is drilled, a rotating rod and a drill bit descend to be close to the workpiece, meanwhile, a motor is started to drive a second belt wheel to rotate, a transmission belt rotates, the rotating rod and the drill bit rotate to drill the workpiece, meanwhile, when the rotating rod rotates, a round ball rod can rotate around the center of a fixed circular ring, the round ball rod can incline, and a first connecting ring can be pulled by the round ball rod; the first connecting ring is moved downwards to descend, so that an extrusion ring descends, an extrusion plate descends, cooling liquid in a liquid storage tank is extruded, the extruded cooling liquid is sprayed out through a communicating hole to flush the surface of the drill bit, and therefore chippings attached to the surface of the drill bit are reduced, and the abrasion speed of the drill bit is effectively reduced.

The invention discloses a weather-resistant flame-retardant crosslinked polyethylene insulating material, a cable material and a preparation method. The weather-resistant flame-retardant crosslinked polyethylene insulating material comprises the following components in parts by mass: 60-70 parts of linear low-density polyethylene (LLDPE), 20-25 parts of low-density polyethylene (LDPE) and 15-20 parts of a copolymerization mixture, the copolymerization mixture is prepared from a styrene-ethylene / butylene-styrene block copolymer (SEBS) and styrene-ethylene / butylene-styrene block copolymer grafted maleic anhydride (SEBS-g-MAH). The cable material disclosed by the invention not only can give consideration to the flame-retardant characteristic and light aging resistance of a cable insulating material, but also can inhibit the damage of moisture to the insulating material under an alternating electric field, reduce the moisture entering the insulating material in a natural environment, and improve the water tree resistance of the material.

The invention belongs to the technical field of veterinary preparations, and particularly relates to a tilmicosin premix and a preparation method thereof. The tilmicosin premix is prepared from the following raw materials: tilmicosin, a polylactic acid-glycolic acid copolymer, lecithin, modified hydroxypropyl methyl cellulose, grafted polyvinylpyrrolidone, polyethylene glycol and an antioxidant, a solid dispersion is formed through lecithin and grafted polyvinylpyrrolidone, the solubility and stability of tilmicosin are enhanced, polylactic acid-glycolic acid copolymer nano-microspheres are prepared through a double-emulsion solvent evaporation method, slow release of drugs is achieved, dodecyl modified hydroxypropyl methyl cellulose and polyethylene glycol are combined, and the sustained release effect is achieved. The solubility and the slow release characteristic are further enhanced. The activity of the granular premix is effectively preserved, and the granular premix is convenient to use and transport.

The invention relates to the technical field of cement-based anticorrosive materials, and particularly discloses a modified magnesium phosphate cement anticorrosive material as well as a use method and application thereof. The anticorrosive material comprises the following components in parts by weight: 100 parts of modified magnesium phosphate cement, 3-15 parts of a retarder, 1-10 parts of an epoxy resin glue solution, 0.5-5 parts of metakaolin and 15-20 parts of water. The modified magnesium phosphate cement comprises dead burned magnesium oxide and modified phosphate in a mass ratio of (1-4): 1. The modified phosphate is prepared from the following raw materials: nano aluminum oxide, sodium citrate and phosphate in a mass ratio of (0.5-1.5): (0.5-1.5): (20-25). The epoxy resin glue solution comprises uncured epoxy resin glue and a curing agent. The anti-corrosion material provided by the invention has the technical advantages of strong adhesive property and excellent anti-corrosion property, and can better provide protection for a steel structure serving in a marine environment.

The invention discloses a nanoparticle / polyvinylidene fluoride composite piezoelectric gain photocatalytic antibacterial film and a preparation method and application thereof.The preparation method comprises the steps that a polyvinylidene fluoride solution serves as a core layer spinning solution, and photocatalytic nano sol serves as a skin layer spinning solution; and carrying out coaxial electrostatic spinning on the polyvinylidene fluoride solution and the photocatalytic nano sol to prepare the nano particle / polyvinylidene fluoride composite piezoelectric gain photocatalytic antibacterial film. According to the preparation method disclosed by the invention, nano-scale photocatalytic sol is fixed on the surface of micron-scale polyvinylidene fluoride in one step by utilizing an electrostatic spinning technology, so that the polyvinylidene fluoride is prevented from coating effective components, and the effective components are also prevented from blocking holes of polyvinylidene fluoride fibers; effective separation and directional migration of electrons and holes of sol on the surface are effectively promoted, and the capacity of photocatalytic nano sol for removing biological aerosol is improved. The preparation method is simple in industry, low in energy consumption and easy for large-scale production.

The invention discloses homogeneous stirring equipment for preparing cold water fish feed grease, and relates to the technical field of stirring, and the homogeneous stirring equipment comprises a bin body mechanism. According to the homogenizing and stirring equipment for preparing the cold water fish feed grease, through the design of the bin body mechanism, materials enter from the top of the processing mechanism, circulate and enter the bin body shell, then a motor is started, a central rotating shaft is controlled by the motor to rotate, and the interiors of the materials are rotated by paddle plates, so that the effect of mixing the materials is achieved; through the design of the multiple paddle plates, the stirring range is enlarged, the mixing efficiency is improved, the uniform mixing effect is achieved, the paddle plate grooves are formed, the rotating efficiency is improved through the grooves, the grooves can disturb boundary layers on the surfaces of the paddle plates, resistance is reduced, the flowing efficiency of fluid is improved, and therefore the stirring effect of the paddle plates in the fluid is enhanced; cavitation and cavitation phenomena are reduced, the possibility of generating cavitation and cavitation under high-speed movement is reduced, and the service life of the paddle board is prolonged.

The utility model relates to a secondary ink cartridge assembly for a printer, which comprises a secondary ink cartridge body, the secondary ink cartridge body comprises an ink cartridge body and an ink cartridge cover which are mutually sealed and covered, a high-pressure ink cavity, a low-pressure ink cavity and a normal-pressure ink cavity are arranged in the ink cartridge body, and the high-pressure ink cavity, the low-pressure ink cavity and the normal-pressure ink cavity are respectively provided with a liquid level sensor. The high-pressure ink cavity is sequentially communicated with the printing spray head, the low-pressure ink cavity, the normal-pressure ink cavity, the second ink pump, the bubble removing device and the first ink pump, so that ink flows out of the high-pressure ink cavity, sequentially flows through the printing spray head, the low-pressure ink cavity, the second ink pump, the normal-pressure ink cavity, the first ink pump and the bubble removing device and then flows back into the high-pressure ink cavity, and therefore a self-circulation ink path is formed. According to the secondary ink box, ink between the secondary ink box body and the printing spray head keeps continuous circulating flow, precipitation is avoided, the temperature of the ink entering the printing spray head is appropriate and constant, the bubble content is small, the pressure fluctuation is small, and therefore the printing quality is higher, and the printing effect is better.

The invention provides a preparation method of a beryllium-copper alloy material with high beryllium content, which comprises the following steps of: preparing metal raw materials containing pure copper and beryllium-copper master alloy, smelting to obtain alloy liquid, casting the alloy liquid to obtain a cast ingot, homogenizing the cast ingot to obtain a homogenized casting blank, and hot-rolling the homogenized casting blank to obtain a hot-rolled blank, the preparation method comprises the following steps: carrying out hot rolling on an alloy strip, carrying out hot rolling on the alloy strip to obtain a hot-rolled blank, carrying out annealing treatment on the hot-rolled blank to obtain an annealed blank, carrying out a circulating cold rolling-intermediate annealing process on the annealed blank, and finally carrying out finish rolling and finished product annealing treatment on the alloy strip to prepare the high-beryllium-content beryllium-copper alloy material. And machining passes are many.

The utility model provides an aluminum plate spray coating device, which relates to the technical field of aluminum plate coating and comprises a fixing plate, a support plate and a spray coating mechanism, a guide rod is fixedly mounted on the inner wall of a groove, a spring and a slider are respectively sleeved on the outer wall of the guide rod, a first cleaning roller is rotatably mounted on one side of the slider, and a second cleaning roller is rotatably mounted on the other side of the slider. A second cleaning roller is rotationally mounted between the two supporting plates and below the first cleaning roller; a plurality of suction cups are evenly installed on the outer wall of the conveying belt, one end of one conveying roller penetrates to one side of one supporting plate and is fixedly connected with a servo motor, and the servo motor is fixedly installed on one side of the supporting plate. According to the aluminum plate coating device, dust on the two faces of an aluminum plate is removed, the cleanliness of the aluminum plate can be guaranteed, the coating quality of the aluminum plate can be improved to a certain degree, meanwhile, the aluminum plate can be driven to move forwards stably, coating liquid in the barrel is stirred, the coating liquid can be prevented from being precipitated, and the coating quality of the aluminum plate can be improved.

The invention discloses a composite additive for a vanadium electrolyte and a preparation method of the composite additive, and relates to the technical field of vanadium batteries. The composite additive is applied to the electrolyte of the vanadium battery, the electrolyte is a positive electrode electrolyte and a negative electrode electrolyte, the concentration of the vanadium electrolyte can be improved, precipitation and crystallization of vanadium ions can be inhibited, and meanwhile, the electrochemical activity of the vanadium battery can be improved. The composite additive comprises a mixture formed by a first component and a second component, the first component comprises at least one of a fluorine-containing compound, oxyacid and oxysalt, and the second component is a surfactant.

According to the antibacterial and antioxidant composite film applied to food preservation and the production method of the antibacterial and antioxidant composite film, the chlorogenic acid, the catechin, the montmorillonite and the zeolite are introduced, and a drying process is optimized, so that the antibacterial performance, the antioxidant performance and the mechanical performance of the preservative film are remarkably improved, and meanwhile, the water vapor permeability and the oxygen permeability are reduced. The method comprises the specific steps of raw material preparation, polyphenol compound and mineral substance preparation, membrane liquid preparation and treatment, drying process optimization and finished product membrane uncovering. According to the preparation method disclosed by the invention, components such as chlorogenic acid, catechin, montmorillonite and zeolite are introduced, and a drying process is optimized, so that the food preservative film with synergistic antibacterial and antioxidant properties is prepared.

The invention provides an antistatic polypropylene material as well as a preparation method and application thereof, and belongs to the technical field of polypropylene materials. The preparation method comprises the following steps: modifying graphene, preparing a graphene / titanium dioxide compound, reacting, and performing extrusion molding. The method comprises the following reaction steps: putting a functionalized graphene / titanium dioxide compound into a reaction container, introducing N, N-dimethylformamide, uniformly stirring, adding modified graphene, dicyclohexylcarbodiimide and 4-dimethylaminopyridine, heating to 73-77 DEG C, carrying out ultrasonic treatment, and after ultrasonic treatment is finished, carrying out heat preservation stirring for 1.8-2.2 hours to obtain the graphene / titanium dioxide composite material. Then heating to 116-123 DEG C at the speed of 1.7-2.3 DEG C / min, stirring for 1.8-2.2 hours while keeping the temperature, after stirring is finished, filtering, washing, freeze-drying, and naturally recovering to room temperature, so as to obtain a graphene-graphene / titanium dioxide compound; the antistatic polypropylene material prepared by the invention is good in antistatic property, excellent in mechanical property and good in aging resistance.

The invention relates to 780 MPa grade wheel steel and a manufacturing method thereof. The technological process comprises the steps of KR molten iron desulphurization, converter smelting, argon blowing, LF refining, RH vacuum treatment, continuous casting blank forming, plate blank heating, rolling, cooling and coiling. According to the method, the economical titanium alloy is adopted, precipitation strengthening of Ti is not used for improving the strength of base metal, and solution strengthening and structure strengthening are used for enabling the strength performance of the material to meet the requirement; meanwhile, the process that the front section is rapidly cooled to the medium-low temperature to be coiled is adopted, precipitation of Ti is inhibited, precipitation of TiC is inhibited, growth of columnar crystals is inhibited, the Ti element in the steel in a solid solution mode can be reserved, most of Ti in the material is inhibited by the high cooling speed and the low cooling stopping temperature, and the Ti is still in a solid solution mode and not precipitated in base metal; the Ti element is re-precipitated in the welding stage to the user side, and the strength and hardness of the welding heat affected zone and the welding seam are improved by re-precipitation strengthening of the Ti element in the process, so that the softening phenomenon of the welding heat affected zone and the welding seam can be avoided.

The invention relates to the technical field of gray water dispersing agents, and discloses an efficient phosphorus-free gray water scale inhibition dispersing agent and a preparation method thereof.The efficient phosphorus-free gray water scale inhibition dispersing agent is characterized in that a green amino acid monomer is adopted for conducting carboxyl end capping on a prepared polyether long-chain monomer containing carboxyl and sulfonic acid groups so as to improve the biodegradability of a macromolecular polyether monomer, and the efficient phosphorus-free gray water scale inhibition dispersing agent is obtained through copolymerization with an acrylic acid monomer; the steric hindrance and hydrophilicity of the dispersing agent are enhanced; carboxyl and sulfonic acid groups of the aspartic acid terminated polyether alkenyl monomer can chelate iron ions, hydrophilic groups such as amino groups and ether groups enable the chelate to be dissolved or suspended in a solution, and the dispersing performance is good; active carboxyl and sulfonic acid groups in a molecular chain are chelated with Ca < 2 + > and Ba < 2 + >, and a polyethylene glycol alkyl long chain enables zwitterions to have a certain mutual repulsive interaction; the scale inhibition dispersant integrates scale inhibition and dispersion functions, is free of phosphorus in a molecular structure, is easy to degrade after being discharged, and belongs to an environment-friendly multifunctional scale inhibition dispersant.

The invention provides a crystallization process of cefazolin acid, and relates to the technical field of medicine production. The crystallization process comprises the following steps: arranging a cefazolin acid seed crystal on the surface of a rotary drum; heating the feed liquid to a preset temperature, and keeping the temperature; the rotary drum is placed above the feed liquid, and a seed crystal layer on the surface of the rotary drum is immersed into the liquid level of the feed liquid by a preset depth; wherein the feed liquid comprises excessive cefazolin acid, and saturated cefazolin acid is dissolved in the feed liquid; water with the preset water temperature is introduced into the rotary drum, so that the temperature of the rotary drum is the preset water temperature; wherein the temperature of the preset water temperature is lower than the preset temperature; and rotating the rotary drum to crystallize the cefazolin acid on the seed crystal layer of the rotary drum. The invention provides a crystallization process of cefazolin acid, which can be used for obtaining large-size cefazolin acid crystals.

The invention discloses a novel process for producing a high-quality liquid fertilizer by using an acetylisovaleryltylosin tartrate finished product liquid, and relates to the technical field of fertilizer preparation, and the novel process comprises the following specific steps: step 1, firstly, weighing polyoxyethylene sorbitan fatty acid ester, ethylenediamine tetraacetic acid disodium salt, cellulase and protease, and uniformly stirring; the preparation method has the advantages that the polylactic acid-glycolic acid copolymer serving as a functional high-molecular polymer has good biocompatibility and controlled release performance, and when a solution prepared from the polylactic acid-glycolic acid copolymer is emulsified and mixed with an alginate oligosaccharide solution, a uniform emulsion-like active synergistic carrier solution is formed; the emulsifying and mixing process enables the effective components in the two solutions to be fully and uniformly combined together to form a stable microsphere and micelle structure, so that the continuous and slow release of the acetylisovaleryltylosin tartrate and the synergistic plant growth regulatory factors thereof in the growth cycle of crops can be ensured, the fertilizer effect of the acetylisovaleryltylosin tartrate and the synergistic plant growth regulatory factors thereof can be fully exerted, and the crop quality is improved. Therefore, the problem that the fertilizer efficiency is not obvious in the prior art is effectively solved.

This application belongs to the technical field of air compressor safety, and particularly relates to a safety operation method for a piston air compressor. A safety operation method for a piston air compressor includes the following steps: S1, a flexible baffle is provided on an air-cooled plate cooler connected to the piston air compressor; S2, temperature data of each cooling unit at the current moment is obtained, and at the same time, the temperature change trend and the opening area change trend of the air outlet end of each cooling unit are obtained; S3, according to the pressure dew point temperature of the air outlet end of each cooling unit at the current moment, the opening area of each cooling unit at the current moment is adjusted to change the coverage degree of the flexible baffle on the air-cooled flow channels of each cooling unit at the next moment, so that the temperature of the air outlet end of each cooling unit is always above the corresponding pressure dew point temperature. This application can尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。 It should be noted that there is an unclear part in the original Chinese text "尽量避免活塞式空压机在运行的过程中发生冰堵或油乳化,保证活塞式空压机的安全运行。" which may need to be further clarified for a more accurate translation. The above translation is based on the best understanding of the current text.

The invention belongs to the technical field of precious metal electronic paste, and particularly relates to a preparation method and application of submicron spherical gold-platinum-palladium alloy powder used for being matched with low-temperature co-fired ceramics. The preparation method comprises the following steps: mixing a tetrachloroauric acid solution, a hexachloroplatinic acid solution and a tetrachloropalladium (II) acid solution to obtain a gold-platinum-palladium mixed solution; the gold-platinum-palladium mixed solution, the dispersing agent solution and the modified reducing agent solution are mixed for a second time, after a reduction reaction is conducted, static settlement and solid-liquid separation are conducted in sequence, obtained solids are washed and dried in sequence, and the obtained submicron spherical gold-platinum-palladium alloy powder used for being matched with the low-temperature co-fired ceramic has the advantages of being uniform in particle size, free of agglomeration, high in dispersity and the like. After low-temperature co-firing with a ceramic substrate, the substrate has the characteristics of flatness, no bubble, excellent weldability and soldering resistance, good batch stability and the like.

The invention provides clarified defatted coconut milk, a preparation method thereof and application of the clarified defatted coconut milk in tea beverages. The preparation method of the degreased coconut milk comprises the following steps: S1, crushing and squeezing coconut meat to obtain coconut milk; s2, the coconut milk is filtered and centrifuged, a grease layer and an insoluble substance layer are removed, and degreased coconut milk is obtained; s3, sequentially adding pectinase and protease into the degreased coconut milk for enzymolysis, and filtering to obtain filtered pulp; and S4, adding a compound enzyme preparation into the filtered slurry, carrying out ultrasonic treatment, enzyme deactivation and filtration, centrifuging the filtrate, taking a clear juice layer, and filtering to obtain the clarified degreased coconut milk. According to the method, coconut pulp is taken from coconuts with proper fruit age and is juiced to prepare the coconut milk, and then proper filtration, clarification and centrifugal extraction conditions are combined, so that carbohydrates in the coconut milk can be better reserved, and substances such as protein and pectin in the coconut milk can be effectively removed or degraded, so that the degreased coconut milk becomes clear, and the quality of the coconut milk is improved. And turbidity or precipitation can be effectively avoided after the defatted coconut milk tea beverage is compounded.

The invention provides high-strength corrosion-resistant structural steel and a preparation method thereof. The high-strength corrosion-resistant structural steel is composed of the following components in percentage by mass: 0.12-0.15% of C; 0.3 to 0.50 percent of Si; 1.8 to 2.0 percent of Mn; 0.05% to 0.06% of Nb; 0.12% to 0.15% of Ti; 0.75 to 1.0 percent of Cr; 0.8 to 1.0 percent of Ni; 0.25 to 0.50 percent of Cu; 0.10% to 0.20% of Mo; 0.10% to 0.20% of Sb; the content of Als is 0.015 to 0.035 percent; n < = 0.00060%; o < = 0.00015%; h < = 0.0015%; less than or equal to 0.015% of S; p is less than or equal to 0.018%; the balance is Fe and residual impurity elements in the smelting process. By adjusting the element components and the content of the element components in the high-strength corrosion-resistant structural steel, on the basis that traditional chromium, nickel, molybdenum and copper are added to improve corrosion-resistant elements, trace antimony elements and titanium elements are added, on one hand, a large amount of dispersed TiC is separated out to generate second-phase strengthening, and the strength is improved; on one hand, formation of Fe3C is inhibited, and toughness is improved; the corrosion-resistant steel plate is suitable for the working condition of a coal mine and the high-salt and high-humidity environment containing sulfur, chlorine and other acid media.

The invention belongs to the technical field of lithium ion battery positive electrode materials, and particularly relates to a spinel phase Li4Mn5O12 coated high-nickel positive electrode material as well as a preparation method and application thereof. A substrate of the material is a high-nickel positive electrode material, a coating layer is arranged on the surface of the substrate, and the coating layer is spinel-phase Li4Mn5O12 nanoparticles; the spinel phase Li < 4 > Mn < 5 > O < 12 > accounts for 1%-3% of the high-nickel positive electrode material by mass; the chemical general formula of the high-nickel positive electrode material is LiNi < 1-x-y > Co < x > Mn < y > O < 2 >, wherein (1-x-y) < lt > is greater than or equal to 0.8; 1, 0lt; xlt; 0, 0, 0, 0; yt; Yt; and 0.2 part. The spinel with relatively high lattice matching degree with the high-nickel positive electrode material can avoid a coating layer fracture phenomenon caused by volume expansion of the coating layer; a spinel three-dimensional lithium ion diffusion channel is adopted, so that the de-intercalation rate of lithium ions is increased, and the rate capability of the high-nickel positive electrode material is enhanced.

The invention relates to the technical field of shell processing equipment, in particular to a motor shell and a coating device thereof. The shell is arranged on the ground. The spraying device is arranged on the shell and connected with the shell, and the automatic adaptive clamping device is arranged in the shell and connected with the spraying device and the shell. The coating liquid stirring device is arranged on the shell and the spraying device, and the coating liquid stirring device is connected with the shell and the spraying device. The controller is arranged on the side of the shell and on the ground, and the controller is electrically connected with the spraying device. The technical effects that when the motor shell is coated, the equipment can automatically clamp the motor shells of different sizes and uniformly coat the motor shells, and meanwhile, the equipment can also stir coating liquid to prevent the coating liquid from precipitating, so that the working performance is lost are achieved.

The present invention discloses an adhesive composition for fuel cells and a preparation method thereof, which relates to the technical field of fuel cells, and comprises a release layer I, a hot melt adhesive layer I, a hot melt adhesive layer II and a release layer II arranged in sequence; the hot melt adhesive layer I is an acid-modified polyolefin resin hot melt adhesive layer, and the hot melt adhesive layer II is a modified polyurethane resin hot melt adhesive layer. The single cell manufacturing process is simplified, the efficiency and yield are significantly improved, and the production efficiency is greatly improved. At the same time, only the adhesive layer is used during the battery packaging process, which effectively reduces the production cost.

The invention relates to the technical field of food processing and functional drinks, and discloses a peptide-component-rich health-preserving liqueur which comprises the following components in percentage by weight: 50-65% of Maotai-flavor liquor, 10-20% of yellow wine, 3-7% of water, 10-20% of peptide components, 1-5% of plant extract and 5-10% of other components, the invention also discloses a preparation method of the health-preserving liqueur rich in peptide components, which comprises the following steps: S1, peptide treatment: carrying out directional enzymolysis on the peptide components, controlling the enzymolysis temperature at 40-50 DEG C and the enzymolysis time at 2-4 hours; and S2, microcapsule coating: coating the treated peptide components in cyclodextrin, gelatin or Arabic gum. By adopting a compound formula of multiple peptide components and combining technologies such as microcapsule coating, directional enzymolysis, low-temperature co-fermentation and nano-emulsification, the stability and bioavailability of the peptide components are remarkably improved, meanwhile, the flavor and taste of a wine body are optimized through a two-stage fermentation process, the wine body is more mellow and smoother, and the taste of the wine body is improved. The requirements of the market on the high-quality health-preserving liqueur are met.

The utility model relates to the technical field of boilers, in particular to wet desulphurization equipment for boiler flue gas waste heat recovery, which comprises a boiler body, a circulating water tank, supporting legs, a water pumping pipe and a stirring and mixing device, the stirring and mixing device comprises a stirring shaft, stirring blades, a driving assembly and an auxiliary assembly, and the stirring shaft is rotatably connected with the boiler body. The stirring blades are fixedly connected with the stirring shaft, the driving assembly is arranged on the boiler body, the auxiliary assembly is arranged on the boiler body, and in the desulfurization process of the boiler body, when lime water is added into the boiler body for desulfurization, the driving assembly is started, the driving assembly drives the stirring shaft to drive the stirring blades to rotate in the boiler body, and the stirring blades rotate in the boiler body. The lime water is stirred and mixed by the stirring blades, so that the lime water in the boiler body can be stirred and mixed, the lime water in the boiler body is fully stirred, precipitation is avoided, the lime water is effectively utilized, and the desulfurization cost is reduced.