334results about How to "Improve storage performance" patented technology

A nonvolatile memory device using a resistance material and a method of fabricating the same are provided. The nonvolatile memory device includes a switching element, and a data storage part electrically connected to the switching element. In the data storage part, a lower electrode is connected to the switching element, and an insulating layer is formed on the lower electrode to a predetermined thickness. The insulating layer has a contact hole exposing the lower electrode. A data storage layer is filled in the contact hole and the data storage layer is formed of transition metal oxide. An upper electrode is formed on the insulating layer and the data storage layer.

The invention provides a polymer porous membrane, a preparation method of the polymer porous membrane, a polymer electrolyte, a polymer battery and a preparation method of the polymer battery. A carbon material is dispersed in the polymer porous membrane, so that the degree of crystallization of a polymer which constitutes the polymer porous membrane is lowered and the liquid absorption of the polymer porous membrane is increased; the liquid absorption rate, liquid holding capability and ionic conductivity of the polymer porous membrane are increased; interface impedance is reduced, battery magnification discharging performance and the circulating performance of the battery are enhanced; simultaneously, the battery prepared by the method has excellent high temperature circulation and storage performance and low expansion ratio at a high temperature and further meets the development requirement of the polymer battery. Simultaneously, the preparation method is simple and is easy to implement and the prepared battery has high performance.

The invention discloses a production method of an emulsified explosive, which comprises the following steps that: water phase and oil phase are prepared, and then water phase solution is added into oil phase solution to be emulsified by an emulsifier to prepare a latex matrix, and simultaneously a cooling steel strip controls the temperature of the latex matrix to be 90 to 105DEG C; and the matrix is cooled, the cooled latex matrix is added into a sensitizing machine, and then one or two of perlite and chemical blowing agent is added in for sensitization; and then the explosive is charged, and finally the loaded explosive is packaged to prepare the emulsified explosive. The production method of the emulsified explosive has the advantages of reducing the production cost, having no waste explosive, waste material, waste gas, waste water and dust in production, realizing the free switching of a plurality of sensitization methods, such as physical sensitization, chemical sensitization and physical and chemical composite sensitization, so as to meet the needs of different consumers; perlite is adopted for physical sensitization, and can improve the explosion performance and the storage performance; and the production method of the emulsified explosive can adapt to the requirements of small-diameter explosive charging and full-automatic packaging automatic calandria.

Systems and methods which provide secure queries with respect to encrypted datasets are described. Embodiments provide privacy-assured similarity join techniques operable with large-scale encrypted datasets. A privacy-assured similarity join technique of embodiments enables a storage system to answer similarity join queries without learning the content of the query dataset and the target dataset. One or more secure query schemes may be implemented in accordance with a privacy-assured similarity join technique herein. For example, embodiments may utilize an individual similarity query scheme, a frequency hiding query scheme, and / or a result sharing query scheme. A particular secure query scheme of the foregoing secure query schemes may be utilized to address different considerations with respect to security, efficiency, and deployability with respect to various applications and scenarios with different requirements.

The multifunctional superfine powder rice seed coating agent is compounded with imidacloprid and other pesticide, Seedvax and other germicide, sodium nitrophenolate compound and other plant growth regulator, trace element fertilizer and other active components as well as compound filming agent chitosan and other non-active components, and through superfine grinding and other steps. It can form film automatically while being set in water and may be used for coating rice seed for raising seedling in water, raising seedling in dry land and direct seeding, with the weight ratio between the coating agent and the rice seed being 1 to 300-600. It can prevent diseases and pests of rice seedling for 50-65 days and promote rice seedling growth.

The invention provides a dealcoholized organosilicon sealant with damp-heat resistance and stable storage. The dealcoholized organosilicon sealant is characterized in that the organosilicon sealant comprises the following components according to parts by weight: 100 parts of alpha, omega-dihydroxy polydimethylsiloxane, 1-20 parts of mixed crosslinking agent, 1-20 parts of titanate catalyst, 0-300 parts of filler, 0-200 parts of low molecular weight silicone oil and 0-10 parts of tackifier. The invention further provides a preparation method for the dealcoholized organosilicon sealant, which is characterized in that: as titanate is selected as the catalyst and the mixed crosslinking agent is used, the storing and processing performances are improved; with excellent mechanical property, good damp-heat resistance and high storage stability, the obtained sealant is particularly applicable to adhesive bonding and encapsulating of various electronic and electrical appliances.

The invention provides a single-component bonding sealing type silicone adhesive for a solar battery assembly. The single-component bonding sealing type silicone adhesive comprises partial silylated polyurethane, wherein the partial silylated polyurethane is prepared through following ingredient reactions that (a) at least one flexible long-chain aliphatic hydrocarbon polyalcohol and diisocyanate take reaction to synthesize end-NCO (isocyanate group) based polyurethane; and (b) at least one silane coupling agent is used for carrying out partial end sealing on the end-NCO based polyurethane. Main body chains of the partial silylated polyurethane used by the single-component bonding sealing type silicone adhesive have long-chain aliphatic chains, and the aliphatic chains have excellent damp isolation capability; meanwhile, the excellent weatherability is realized; the reaction with micromolecule ketoxime and alcohol removed by crosslinking agents can be realized, the adhesive layer cracking of deep-layer curing sealing adhesive is prevented, meanwhile, the damp can also be absorbed, and the storage capability of the sealing adhesive is improved; the participation in the cross-linking reaction of the sealing adhesive can be realized; and the fast curing is promoted, and the adhesion intensity of substrates is improved.

The invention discloses a multifunctional compound fertilizer additive and a preparation method thereof. The preparation method comprises the following steps: uniformly spraying a compound amino acid complex solution of trace elements containing Fe, B, Mn, Cu, Zn and Mo, rare earth elements containing Ce and La and beneficial mineral elements containing Ni, Co and Ti on grass carbon, brown coal or weathered coal powder, airing or drying, and then crushing to obtain a material A; preparing dicyandiamide used as a nitrification inhibitor into an ammonia solution to be adsorbed on carboxymethyl cellulose used as a water retention agent, airing or drying, and then crushing to obtain a material B; mixing cobalt sulfide and molybdenum sulfide which are used as nitrogen fixation catalysts with bean cakes or corn starch to obtain a material C; and uniformly mixing the material A, the material B and the material C to obtain the additive. The multifunctional compound fertilizer added with the additive of the invention has the advantages of fixing nitrogen, dissolving phosphorus, enriching soil, reducing nutrient loss, improving nutrient utilization ratio, improving crop enzyme activity, promoting metabolism, improving crop quality, increasing crop yield, retaining water, saving water, resisting drought, regulating buffering acidity or saline-alkali soil, and improving soil structure.

A lithium battery electrolyte comprises lithium salt, organic solvent and the chemical additive. The lithium salt is one of lithium per chlorate, trifluoromethyl lithium sulfonate, six lithium flu phosphate, six fluorine arsenic acids lithium, the tetrachloride aluminum lithium, in the tetrachloride boron lithium one kind or its combination thing, the density is 0.5-2.0mol / L; The organic solvent is alkyl phosphate RPO3R ' R ';The chemical additive is the (volume compares) two oxygen link fifth heavenly stem Alkane DOL whose density is density is 0-5% . This invention has good anti- burn performance, the electrolyte conductivity maximum value can reach 4.0mS-1 also but not to affect the reaction nature of plurity of insertion electrode, may be used in -50 degree C-120 degree C temperature ranges, also causes the cathode surface to form a high flexible SEI membrane, thus enhance the safety of lithium battery in the production, storage and transportation and reduce the production cost.

The invention discloses a method for extracting grape-kernel oil by supercritical CO2 and oligo-raw anthocyanin by the solvent method, wherein the raw anthocyanin obtained is subjected to chromatographic separation and microencapsulation technical treatment, so as to obviously improve the purity and the thermal stability of the raw anthocyanin. The method guarantees the pure natural property of the product, has the characteristics of simpleness, convenience, quickness and easy operation, and can obtain higher efficiency. The method comprises the following steps: the grape-kernel oil is extracted by an extraction device, wherein the grinding degree of grape-kernel is between 40 and 60 meshes, the moisture content is between 3 and 7 percent, the flow rate of the CO2 is between 1 and 15 liters per hour, the pressure is between 30 and 50 MPa, the temperature is between 40 and 60 DEG C, and the separation pressure in a separator is between 5 and 10 MPa; a raw anthocyanin oligomer is extracted from grape-kernel dregs, wherein the grinding degree of the grape-kernel dregs is between 20 and 60 meshes, the concentration of ethanol is between 40 and 80 percent, the solid-liquid ratio is 1 to 8, the extraction temperature is between 40 and 60 DEG C, the concentration of acetic acid is between 0.1 and 2 percent, and the extraction time is between 1 and 2 hours, and extraction is repeatedly performed twice; and the raw anthocyanin is subjected to chromatographic separation, static and dynamic adsorption by macroporous absorbent resin, and elution twice by acetic ether and acetone, and then the oligo-raw anthocyanin with strong antioxidation and strong ability in eliminating free radicals is formed after combination.

The storable bread has in bread flour in 1000 weight portions water keeping agent 10-200 weight portions, acidity regulator 1-10 weight portions and preservative 0.5-2.5 weight portions other than conventional bread material, and is packed in a sealed bag together with deoxidant. By means of improving the bread making and storing process with modern biotechnology, modern food making technology, and modern packing technology, the present invention raises the storing performance of bread greatly. The storable bread may be stored at normal temperature for as long as three years, and is suitable for serving in tour, field operation, military field, etc.

The invention discloses an NAND Flash fault tolerant system based on an FPGA (Field Programmable Gate Array). The NAND Flash fault tolerant system comprises a Flash bad block management subsystem, a USB (Universal Serial Bus) communication subsystem and an upper computer, wherein the Flash bad block management subsystem consists of the FPGA and a Flash array, and is used for detecting factory bad blocks by querying a flag bit of Flash in a spare area, querying return states of a reading operation, a writing operation and an erasing operation to detect lost bad blocks, and recording addresses of all the bad blocks. The Flash is partitioned into three logical areas, namely, a mapping good block area, a bad block area and an information storage area respectively, and an address mapping table is built and stored in the information storage area. The FPGA serves as a core controller, is communicated with the upper computer through the USB communication subsystem, and can receive a control instruction sent by the upper computer and upload data. A usage condition, including a space size of the good block area, a data storage status and the like of a current NAND Flash array can be queried through the upper computer; automatic detection can be performed to update the address mapping table; and stored data in the Flash array can be read, and data can be stored in the Flash array.

The invention discloses a method for classifying dynamic data on the basis of multi-classifier fusion, and belongs to the field of storage technologies for computers. The method includes particular steps of 1, extracting data features of data of training sets and forming initial data feature sets; 2, preprocessing data features of the initial data feature sets and screening the data features to obtain the optimal feature subsets; 3, training multiple classifiers for the optimal feature subsets to obtain different classification models; 4, fusing the different classification models via the classifiers to form dynamic data classification models, and classifying the dynamic data by the aid of the dynamic data classification models. The method has the advantages that the data classification accuracy can be improved in complicated application environments, storage hierarchies of the multi-application and multi-type data can be reasonably expressed, and the storage performance can be enhanced while the data classification accuracy is improved.

The present invention provides a method for improving dried meat slice sensory quality, and belongs to the technical field of food processing. According to the present invention, the method includes adding 1-5% by weight of trehalose in dried meat slice production, the trehalose wholy or partly replaces sucrose in the dried meat slice formula, and is added together with accessories or food additives in the process of salting, wherein the salting is at low temperature or room temperature, and then the dried meat slice is produced by a conventional dried meat slice production process or a meat paste production process. The method of the present invention can slow hardening of protein and decomposition and oxidation of unsaturated fatty acid, reduce non-enzymatic browning occurrence, improve drying speed of the meat slice, improve baking performance of the dried meat slice, improve rehydration performance of the dried meat slice, and achieve good sensory quality including good elasticity, bright color, delicate tissue, tender quality and good taste.

The present invention relates to Li—Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a large charge / discharge capacity, an excellent packing density and excellent storage performance. The Li—Ni composite oxide particles for a non-aqueous electrolyte secondary cell which have a composition represented by the formula:LixNi1-y-zCoyAlz02 in which 0.9<x<1.3; 0.1<y<0.3; and 0<z<0.3, wherein the composite oxide particles have a rate of change in specific surface area of not more than 10% as measured between before and after applying a pressure of 1 t / cm2 thereto, and a sulfate ion content of not more than 1.0%, can be produced by mixing Ni—Co hydroxide particles having a sulfate ion content of not more than 1.0% whose surface is coated with an Al compound having a primary particle diameter of not more than 1 μm, with a lithium compound; and calcining the resulting mixture.

The invention relates to the technology of database information storage and aims to provide a method for compressed storage of massive SQL (structured query language) by means of extracting SQL models. The method includes steps: firstly, using a database audit system to recognize constant parameters of the SQL, extracting the information and replacing the information by sequentially numbered contents with fixed prefixes, and forming strings of SQL behavior models with only variables but particular parameters; secondly, generating only identification codes, denoted by long integer, of the obtained SQL behavior models through hash algorithm and maintaining corresponding relationships of the identification codes and the SQL behavior models in the audit system; thirdly, storing relevant information in a database of the database audit system in practical storage, and replacing the SQL information in a SQL audit record with the only identification codes and the constant parameters. By the method, storage consumption of redundant portion is saved greatly, no harmful effect is brought to integrity of audit contents, and accordingly, fast and space-saving storage on the premise that the integrity of audit records is not damaged is achieved.

A disclosed surface treatment method for nanometer calcium carbonate applied to fill a silicone sealant comprises the following steps: adding a nanometer calcium carbonate slurry into a reaction kettle, stirring and heating to 60-80 DEG C, so as to obtain a nanometer calcium carbonate suspending slurry; slowly adding a compound surfactant composed of saturated aliphatic acid and coconut oil into the nanometer calcium carbonate suspending slurry for first surface treatment; then slowly adding an alkylphenol polyoxyethylene ether dimeric surfactant for secondary surface treatment, so as to obtain a nanometer calcium carbonate modification solution; and performing dewatering, drying, crushing and sieving on the nanometer calcium carbonate modification solution, so as to obtain the nanometer calcium carbonate for filling the silicone sealant. The nanometer calcium carbonate obtained according to the surface treatment method possesses good dispersibility, hydrophobicity and relatively low oil absorption value, and is capable of improving the storage stability, mechanical properties, ageing resistance, photothermy resistance, oxidation resistance and other performances of the silicone sealant when being applied to fill the silicone sealant.

The invention discloses a fresh yam noodle and a manufacturing method thereof. The fresh yam noodle is processed and manufactured with raw materials of fresh yam, flour and salt. The technical point is that the dosage of the raw material has a weight ratio of: 1:0.2-0.4:0.01-0.05 of flour to fresh yam to salt. The manufacturing method is to wash, peel off, slice, boil with brine, and grind the fresh yam, with the color protected, and then to knead the dough; after calendaring, bar cutting, parching, cutting off, measuring, and packaging, the product is finished. A prominent advantage of the method is that browning and losses of nutrition hygiene ingredients in the processing and storing process are reduced to the maximum degree, thus effectively retaining flavor and nutrition hygiene value of the fresh yam; the finished products are secure and hygiene, and can be stored for long.

The invention relates to a spent fuel storage rack and in particular discloses a spent fuel storage rack in a pressurized water reactor nuclear power station. The storage rack comprises four enclosing plates, an upper bearing plate positioned at the tops of the enclosing plates, and a lower bearing plate and a storage sleeve which are positioned at the bottoms of the enclosing plates, wherein the enclosing plates, the upper bearing plate and the lower bearing plate form a cubic cavity; the storage sleeve is positioned in the square holes on the upper bearing plate and the lower bearing plate; base plates of the storage sleeve are positioned on the lower bearing plate; legs are fixedly connected with the lower bearing plate; thread sleeves on the legs are welded with the lower bearing plate; cylindrical convex plates are arranged at the bottoms of the thread sleeves; the upper ends of the thread sleeves are fastened with the lower bearing plate and the base plates by nuts; adjusting screws are arranged in and in threaded connection with the thread sleeves; the bottoms of the adjusting screws are freely positioned in the spherical recesses of bottom backing plates; and the base plates are provided with through holes communicated with the inside of the storage sleeve and the through holes are communicated with the through holes on the bearing plates. The storage rack has high storage capacity and good shock resistance.

The embodiment of the invention discloses a block chain storage method, system and device and a computer readable storage medium. The method comprises when the data is written, storing user data on ahigh-performance memory, namely a first memory, of a first-layer storage structure through a memory interface; when the storage space of the first memory is full, starting the second memory, mapping the data in the first memory to a corresponding hierarchical tree structure in a low-performance memory, namely a second memory, located in a second layer of storage structure, transferring to a firstmemory for storage; using the block chain node to retrieve the user data; carrying out the retrieval on the first-layer storage structure firstly, if the retrieval is not carried out on the first-layer storage structure, continuing to retrieve on the second-layer storage structure, so that the efficient utilization of underlying hardware resources is achieved, the staged delay caused by global read-write locking is overcome, the storage performance of the block chain is improved, and the method is suitable for scenes with large data storage amount.

The invention discloses electric force compound grease and a preparation method thereof. The silicone oil electric force compound grease mainly comprises silicon oil, white carbon black and conductive metal powder, wherein the white carbon black is subject to surface treatment with a lipophilic processing agent. The silicone oil electric force compound grease comprises the following components in parts by weight: 100 parts of silicon oil, 20-33 parts of precipitated silica subject to the surface treatment with the lipophilic processing agent, 65-90 parts of conductive metal powder, 0-2 parts of stabilizing agent and 0-2 parts of anti-oxygen agent, or the silicone oil electric force compound grease is also composed of the following components in parts by weight: 100 parts of silicon oil, 10-15 parts of fumed silica subject to the surface treatment with the lipophilic processing agent, 65-90 parts of conductive metal powder, 0-2 parts of stabilizing agent and 0-2 parts of anti-oxygen agent. The silicone oil electric force compound grease disclosed by the invention has the advantages of high dropping point temperature, good attachment property, stable rationalizing property, long service life and good economic property.

The invention relates to an aqueous aluminum base solder paste that is good in environmental friendliness and storage, which consists of aluminum base solder powder, scaling powder and an aqueous paste forming body. The aqueous aluminum base solder paste consists of 30-70% of aluminum base solder powder, 5-35% of scaling powder and 10-40% of an aqueous paste forming body based on the weight of the aluminum base solder paste. The aluminum base solder powder is aluminum alloy solder powder. The aluminum alloy comprises the following elements by weight: 10-12% of Si, 0-30% of Cu, 0-35% of Zn and the balance of A1. The scaling powder comprises the following components by weight: 0-55% of AlF3, 10-48% of KF, 0-20% of CsF, 0-20% of NaF, and 0-15% of KCl based on the weight of the scaling powder. The paste forming body comprises the following components by weight: 0.1-20% of an aqueous thickening dispersant, 5-20% of an aqueous assistant and 60-95% of an aqueous solvent based on the weight of the paste forming body. The invention is suitable for being used as a solder paste.

The invention provides an SAS (serial attached small computer system interface) back board, which comprises ten hard disk drive slots and a plurality of mini-SAS interfaces, wherein the hard disk drive slots are used for connection with hard disk drives, and the mini-SAS interfaces are used for connection with the hard disk drive slots. By means of the SAS back board, storage extension capacity is improved, storage space of a server is expanded, and storage performance of the server is perfected.

The embodiment of the invention discloses a method for data storage and a cluster management node. The method comprises the steps of receiving node information reported by each storage node and storing the node information to a node information table by the cluster management node; dividing hard disks into groups based on the node information in the node information table, wherein the number of the hard disks selected for each area is less than M for a cluster with the redundancy proportion of N+M; if one area is in failure, updating the state of the storage node in the failure area into a failure state in the node information table; and synchronizing content in the updated node information table and the hard disk grouping information to a normal storage node and a client agent node to enable the client agent node to interact with the normal storage node in the hard disk group so as to finish a data reading and writing service when the client agent node receives a data reading and writing service request. By adopting the method for data storage and the cluster management node, the reliability of data storage and the data writing and reading service can be improved.

The invention discloses a method to repair self-discharge and unqualified batteries. An instantaneous and intermittent repeated charging and discharging method is adopted for the self-discharge and unqualified batteries to melt down burrs and dendrites which can bring the augmentation of self-discharge inside the battery and generate marginal discharge. The burrs and the dendrites are arranged at the surface of an electrode or inside a septum. Because a great deal of electrolyte is reserved inside the electrode and the septum, the melting of the burrs and the dendrites can not bring the further perforation of the septum which can increase the self-discharge of the battery, so the charge retention ability and the reserving performance of the battery can be improved. The self-discharge and unqualified batteries in the production can be repaired and processed through the method of the invention, and the qualified rate of renewed detection can reach over 80 percent.

The invention relates to a waste gas denitration composite catalyst and a preparation method thereof. The waste gas denitration composite catalyst is prepared from a perovskite type catalyst, a catalyst promoter and a catalyst carrier, wherein the formula of the perovskite type catalyst is ABO3, the site A represents a mixture of rare earth metals La (lanthanum) and Y (yttrium), and the site B represents one or a mixture of transition metals Cr (chromium), Mn (manganese), Fe (iron) and Co (cobalt); the catalyst promoter is selected from one or a mixture of SeO2 (selenium dioxide), TeO2 (tellurium dioxide) and PtO2 (platinum dioxide), so as to prevent the deactivation caused by the fact that oxygen atoms in the perovskite type catalyst ABO3 is replaced by sulfur atoms in waste gas; the catalyst carrier is selected from one of TiO2 (titanium dioxide), ZrO2 (zirconium dioxide), SiO2 (silicon dioxide), SnO2 (tin dioxide), Al2O3 (aluminium oxide), zeolite and cordierite; 10g of waste gas denitration composite catalyst is loaded into a fixed bed catalyzing reactor, the NO (nitric oxide)-containing waste gas produced by burning the volatile organic matter is treated at the temperature of 300 DEG C, and the removal rate of NO is 92.9% to 95.8%. The waste gas denitration composite catalyst has the advantages that the water-resistant and sulfur pollution-resistant properties are good, the service life is long, and the running cost is low.

The invention belongs to the field of new materials and discloses precoated sand. The precoated sand is prepared from silica sand, pyrite powder, phenolic resin, bisphenol-A epoxy resin, phenolsulfonic acid, short peptide, boric acid, molybdenum disulfide, a methenamine solution, zinc stearate, dolomite powder, talcum powder and graphite powder. The invention also discloses a burn-free regeneration technology of the used precoated sand. The precoated sand prepared by the technoloyg has relatively high hot tensile strength, low gas-forming property and stable storage property; and the rejection rate of castings is relatively low.

Provided is a novel paint auxiliary agent. The novel paint auxiliary agent is prepared from the following raw materials, by weight, 6-12 parts of methyl methacrylate, 14-22 parts of ethylene diamine tetraacetic acid, 5-8 parts of aluminum phosphate, 6-15 parts of BH-620 water-dispersion-type epoxy resin, 3-5 parts of R-930 titanium dioxide, 1-3 parts of polyethylene glycol, 6-14 parts of titanium dioxide, 5-10 parts of nano zinc oxide, 9-13 parts of high-whiteness calcium carbonate, 6-9 parts of organic bentonite, 1.2-5.6 parts of silver-carrying nano zirconium phosphate, 2-4 parts of locust bean gum, 8-20 parts of acrylic acid and 0.2-0.6 part of alkali or alkaline substances. The beneficial effects are that the novel paint auxiliary agent has a good anticorrosion effect, thixotropy and glossiness of paint are raised, the paint production technology and the paint storage performance are improved, and the novel paint auxiliary agent is convenient to use.

The invention relates to a machinable silica aerogel composite rigid thermal insulating tile and a preparation method thereof. Silica aerogel and a rigid thermal insulating tile are subjected to hydrophobic dry processing after being compounded. The machinable silica aerogel composite rigid thermal insulating tile comprises the ingredient rigid thermal insulating tile, which is the rigid thermal insulating tile of a quartz fiber; the density of the rigid thermal insulating tile is 0.12-0.35g / cm<3>; and the molar ratio of the silica aerogel ingredients, namely the molar ratio of tetraethoxysilane to ethanol to deionized water to catalyst is 1 to (2-10) to (2-12) to (0-0.01). The silica aerogel composite rigid thermal insulating tile prepared by the method is high in porosity and small in aperture, and has a good blocking effect on solid heat transfer, air heat transfer and convection; the preparation method disclosed by the invention is scientific, reasonable, simple, feasible, and convenient to implement; and the prepared self-hydrophobic atmospheric silica aerogel composite rigid thermal insulating tile can be machined into a flat plate, a hood body and other complicated irregular parts.

The invention relates to the field of coating, and particularly relates to high-solid coating and a preparation method thereof. The high-solid coating comprises an A component and a B component, wherein based on the mass of the A component, the A component comprises the following ingredients in percentage by weight: 48%-55% of titanium white slurry, 10%-15% of polyester resin, 25%-30% of hydroxy resin, 0.1%-0.2% of BYK-310, 0.1%-0.2% of BYK-354, 0.1%-0.2% of defoaming agents 5400, 1%-2% of ultraviolet absorbents and 5%-6% of mixed solvents; and the B component is a curing agent which is 80% of HDI (Hexamethylene Diisocyanate) tripolymers. The high-solid acrylic polyurethane coating disclosed by the invention is prepared by taking high-solid high-hydroxyl low-viscosity hydroxy acrylic resin and polyester resin as main raw materials and has the advantages of high drying rate, high luster, good fullness, mechanical property, chemical resistance, weather resistance and storage property and better environment-friendly significance due to less solvent volatilization.