64results about How to "Meet industrial application requirements" patented technology

The present invention discloses a metallic nanowire-graphene bridge structural composite material which comprises multiple layers of grapheme and metallic nanowires and is characterized in that the metallic nanowires are arranged at one side or two sides of the surface of a grapheme sheet layer, the metallic nanowires are welded to the metallic nanoparticles at the surface of the grapheme, and a metallic nanowire-graphene bridge structural composite material is formed. According to the composite material, the transmittance is larger than 85% to 92%, the surface resistance is smaller than 1 Omega at the same time, in an optimal embodiment, a transparent conductive film with the transmittance larger than 90% and the surface resistance smaller than 1 Omega is realized, and the current and future industrial application requirements are fully satisfied. Through growing the metallic nanoparticles with proper density at the surface of the single-layer or few-layer grapheme and assembling and welding the metallic nanowires (such as silver nanowires and copper nanowires) on the metallic nanoparticles, grapheme-metallic nanowires are formed and are assembled and processed to form a grapheme-metallic nanowires bridge structure, a transport path is provided for electrons, and thus the surface resistance of a grapheme assembly film is greatly reduced.

The invention relates to an environmental protection based red mud combination modification synergism fire-retardant polyethylene, and belongs to the technical field of compressive utilization and fire-retardant plastics. The fire-retardant polyethylene is suitable for fire safety protection in important public places in the fields of electric products, building materials and transportation. The fire-retardant polyethylene consists of the following components in percentage by weight: 30 to 35 percent of polyethylene, 34 to 39 percent of red mud, 6 to 13 percent of red phosphorus, 5 to 17 percent of zinc borate, 3 to 8 percent of ethylene-vinyl acetate copolymer, 2 to 7 percent of grafted polyethylene, and 2 to 8 percent of silicone oil. The preparation process comprises the following steps of: grinding and drying the red mud; blending the ground red mud with other raw materials according to the blending ratio; mixing the mixture with polyethylene resin by fully stirring at a high speed; fusing, co-mixing and processing the mixture; and preparing a sample. The processing conditions comprise that: the roll temperature of a double-roller mixing mill is between 140 and 150 DEG C; and the forming temperature of the flat vulcanizing machine sample is between 120 and 130 DEG C, the heating time is between 4 and 8 minutes, and the pressure is between 10 and 20MPa. The fire-retardant system meets the requirements of industrial application on mechanical property, and simultaneously has comprehensive properties such as good fire-retardant effect, low cost, environmental protection and the like; moreover, the application field of the red mud is widened, and the red mud product with high added value is prepared.

The invention discloses a negative plate and a lithium ion battery, and belongs to the technical field of lithium ion batteries. The negative plate comprises a negative current collector and a film coated on the negative current collector; the film is divided into two layers, the first layer of coating is a bottom graphite coating close to the negative current collector, and the second layer of coating is a top silicon-containing coating layer far away from a copper foil. By adopting the technology of dual-layer coating, two types of slurry coats the negative current collector at the same time, after a dual-layer paste coating structure is formed on the same side of the negative current collector, a dual-layer coated negative plate with a silicon-containing coating on the top layer and a silicon-free pure graphite layer on the bottom layer is prepared, and the prepared negative plate has high compaction and high capacity performance, and the preparation method is simple and convenientin process; and the prepared lithium ion battery has the advantages of the high energy density and the good cycle performance, and can avoid lithium precipitation on the surface of the negative plateunder the condition of high-rate quick charging, so that the industrial application requirements are met.

The invention provides a pulverized coal molding method without binding agent, which comprises the following steps of: 1. screening pulverized coal with the granularity of not more than 6mm by a screening device, carrying out drying dehydration processing on the pulverized coal and controlling the water content to be 2-15 percent; 2. forcibly compressing and feeding the pulverized coal obtained in the step 1 into a seam between double rollers of a double-roller molding machine by a feeding machine; and 3. running the double-roller molding machine, continuously rotating the double rollers of which at least one roller circular surface is distributed with pits and compacting and molding molded coal by the pits. The invention also provides the double-roller molding machine which is suitable for the method. The invention solves the problem of pulverized coal molding without binding agent of weak caking coal and non-caking coal, such as low-order bituminous coal, middle and old aged lignite, and the like.

The invention discloses a modeling method for generating intelligent Harsh music lyrics. The method includes: completing data cleaning work from the network easy cloud music to form a Harlyric corpus;generating a topic word library based on a corpus; determining lyrics with semantics similar to that of each topic to serve as first sentence candidates of a generation result; extracting pinyin of last 1-5 characters of each sentence of lyric by using initial consonants and vowels of a modern pinyin system; carrying out word segmentation on the lyric data by using an accurate mode of a ghost word segmentation device, and extracting key words of each sentence of lyric; inputting the lyrics into a Word2Vec model to obtain word vectors corresponding to the lyrics; using the obtained word vectors as training data, and using the training neural network model; outputting the rest lyrics by the neural network through a client interface of the webpage; outputting lyrics output by the neural network to an interface of a webpage program; outputting lyrics output by the neural network to an interface of a webpage program by utilizing a client interface of the webpage; and generating corresponding rhyming words and a next sentence of lyrics for reference of a creator.

The invention relates to a dual-function catalyst, a method for preparing the same and application of the dual-function catalyst. The dual-function catalyst comprises metal oxide and alkaline molecular sieves. A mass ratio of the alkaline molecular sieves to the metal oxide is 0.1-10:1. The dual-function catalyst, the method and the application have the advantages that the dual-function catalyst can be used in reaction for preparing styrene from toluene and methanol and jointly producing ethylbenzene and is good in stability, the conversion rate of the toluene which is a raw material can be greatly increased, and the yields of the styrene and the ethylbenzene which are products can be increased.

The invention discloses a manufacturing method of an iron powder core blank and a manufacturing method of an iron powder core. The manufacturing method of the iron powder core blank comprises the following steps: (1) preparing ferrite slurry and metal powder slurry, wherein the ferrite slurry comprises 70% to 95% by weight of ferrite powder and 5% to 30% by weight of binding agent, and the metal powder slurry comprises 70% to 95% by weight of metal powder and 5% to 30% by weight of binding agent; (2) implementing tape casting on the ferrite slurry and the metal powder slurry to form 25mu. m to 50mu. m thick films respectively; (3) overlapping the ferrite tape casting film and the metal tape casting film together to form a compound material film, and implementing prepressing stamping on the compound material film through 300MPa to 400MPa pressure; (4) cutting the compound material film which is subjected to the prepressing stamping; (5) implementing re-pressing stamping on a rough blank; (6) implementing cutting processing on the rough blank to obtain the cylindrical part of the blank. By applying the manufacturing method of the iron powder core blank and the manufacturing method of the iron powder core provided by the invention, the insulation performance and the rust prevention performance of a manufactured iron powder core product are better.

The invention relates to a toluene and methanol shape-selective alkylation catalyst and a method thereof to mainly solve the problem of poor catalyst reaction stability in the prior art. The catalyst comprises the following components by weight: a) 40-90 parts of silicon-aluminum zeolite with a SiO2 / Al2O3 mole ratio of greater than or equal to 20; b) 0.1-5.0 parts of a hydrogenation assistant; c) 0-10 parts of a nonmetallic oxide; d) 1.0-30 parts of at least one of rare earth metal oxides or alkali earth metal oxides; and e) 10-60 parts of aluminium oxide or a mixture of silicon dioxide and aluminium oxide. The technical scheme adopted by the invention well solves the problem, and the catalyst can be used in industrial production for synthesis of p-xylene through toluene and methanol shape-selective alkylation.

The invention discloses an yttrium barium copper oxide superconducting thin film mixed with samarium. Chemical composition of the superconducting thin film is YSmxBa2-xCu3Oy, wherein 0

The invention provides a preparation and application of a high-performance toluene side-chain alkylation catalyst. The catalyst can greatly improve the conversion rate of toluene while keeping a high selectivity of styrene in products in a toluene-methanol side chain alkylation reaction system, and is characterized by comprising a basic molecular sieve and a supported alkali metal oxide, wherein the basic molecular sieve is an alkali metal molecular sieve with an FAU structure; the supported alkali metal oxide comprises a carrier and the alkali metal oxide supported on the carrier. The invention further provides the application of the catalyst to preparation of the styrene by toluene and methanol and reaction of ethylbenzene.

The invention provides a method for quantitatively evaluating reliability of a switched reluctance machine system through a two-level Markov model. 17 kinds of primary faults probably occurring in the normal state of the switched reluctance machine system are equivalent to 4 effective states and one ineffective state of Markov space under the primary faults, the system expression form under secondary faults is equivalent to 14 effective states and 4 ineffective states based on the 4 effective states, and meanwhile 19 effective states and 6 ineffective states under the two levels of faults of the system are obtained in consideration of the initial normal state and the final ineffective state; a state transition diagram of the system under the two levels of faults is established, an effective state transition matrix under the two levels of faults is obtained, the sum of all elements of the effective state probability matrix is calculated, a reliability function of the switched reluctance machine system is obtained, the mean free error time of the switched reluctance machine system is calculated, and therefore the reliability of the switched reluctance machine system is evaluated through quantitative analysis through the two-level Markov model. High engineering application value is achieved.

The invention relates to a tin-bismuth-silver series lead-free solder, wherein the solder comprises the following components in mass percentage: the mass ratio of tin to bismuth to silver with the purity of 99.99% is 98.9 to 93:1 to 5:0.1 to 2. At least one or more of 0 to 2 percent of zinc, 0 to 2 percent of copper, 0 to 1 percent of aluminum, 0 to 1 percent of indium, 0 to 1 percent of rare-earth element, 0 to 1 percent of gallium or 0 to 1 percent of phosphorus can also be added. A preparation method comprises the following steps: proportionally preparing raw materials, heating to the temperature of 500 to 1300 DEG C for melting in a vacuum smelting furnace under argon protection, simultaneously carrying out magnetic stirring to enable alloy components to be uniform, and then carrying out water-cooling solidification; then overturning an alloy, then reheating to the temperature of 300 to 600 DEG C for melting, simultaneously carrying out magnetic stirring and water cooling, and repeating for at least five times. On the premise of ensuring the industrial application thereof, the solder alloy with low silver content has lower product cost, and the alloy has lower melting temperature, higher tensile strength and higher microhardness.

The invention discloses an organic-inorganic hybrid 3D printing material and a preparation method thereof. The 3D printing material is prepared from 40-80 parts of a hard monomer, 10-25 parts of a soft monomer, 5-10 parts of a carboxyl group-containing monomer, 10-20 parts of quaternary ammonium salt interlayer modified montmorillonite powder, 0.2-1.5 parts of an initiator and a solvent. The organic-inorganic hybrid montmorillonite / polyacrylate is prepared through free radical polymerization of an acrylate monomer in a montmorillonite interlayer by using an in situ polymerization technology; and the organic-inorganic hybrid montmorillonite / polyacrylate can be used as a 3D printing material to make entire products with excellent mechanical performances and flexibility in order to basically meet present industrial application requirements. The material disclosed in the invention has the advantages of simple preparation process and low production cost.

The invention discloses an alkyl thioether-based ethyl hydroxamic acid agent and a preparation method and application thereof. An alkyl thioether-based ethyl hydroxamic acid molecule simultaneously has two functional groups including a thioether group and a hydroxamic group, the alkyl thioether-based ethyl hydroxamic acid molecule is esterified by alkyl thioether-based acetic acid and methanol, and then hydroxamination is carried out by hydroxylamine and alkali to obtain the alkyl thioether-based ethyl hydroxamic acid agent. The alkyl thioether-based ethyl hydroxamic acid agent can be used asa collector for mineral flotation, the preparation method is simple, the yield is high, the thioether group and the hydroxamic acid group in the molecule have a synergistic effect, and the collectingperformance of the alkyl thioether-based ethyl hydroxamic acid agent can be effectively improved.

The invention discloses a preparation method of a water-soluble polyarylether sizing agent and an application thereof; which belong to the technical field of high-performance fiber sizing agents. The preparation method comprises the following steps: mixing phenolphthalein, potassium p-hydroxybenzenesulfonate, 2, 6-dichlorobenzonitrile and potassium carbonate, carrying out temperature programming reaction in a mixed solvent to obtain a polyarylether reaction solution, mixing the polyarylether reaction solution with absolute ethyl alcohol, fully soaking, crushing, heating and washing with absolute ethyl alcohol, and carrying out vacuum drying to obtain polyarylether small molecules; and dissolving in an acetic acid aqueous solution to obtain the water-soluble polyarylether sizing agent. The sizing agent prepared by the invention has the characteristics of good film-forming property, strong adhesive force and outstanding temperature resistance, can solve the problems that the existing high-performance fiber surface sizing agent is easy to decompose at high temperature and is weak in interface bonding and bonding acting force with a thermoplastic resin matrix, improves the comprehensive performance of a fiber reinforced resin matrix composite material, and expands the application field and range of the reinforced resin-based composite material.

The invention belongs to the field of wet metallurgy, and particularly discloses a clean production method for separating manganese and magnesium from a laterite-nickel ore normal-temperature acid leaching liquid employing alkaline oxidation. The technology mainly comprises two processes: alkaline oxidation and dilute acid dissolution. Mn<2+> in a cobalt-nickel solution is oxidized into MnO2 by the oxidability of H2O2 under an alkaline condition; meanwhile, the pH of the solution is adjusted; and participation of Mg in a form of Mg(OH)2 is avoided. The MnO2 has the property of not being dissolved into dilute acid, so that Mn can be separated from the cobalt-nickel solution by a method of dissolving diluted hydrochloric acid. According to the technology, manganese and magnesium in the cobalt-nickel solution can be effectively separated; the manganese and magnesium products and nickel-cobalt hydroxide slag with relatively good quality are obtained; and comprehensive utilization of resources is improved.

The invention discloses a regulation and control method based on super-structure surface continuous domain bound state nonlinear response. The regulation and control method comprises the following steps: 1, calculating physical parameters of artificial nonlinear response generated by BICs theoretically; 2, based on the obtained physical parameters influencing the nonlinear response, comparing and analyzing simulation results of the super-structure surface to the nonlinear response in two excitation modes of direct excitation and indirect excitation of BICs; 3, designing, processing and testing the nonlinear super-structure surface. According to the method, the metasurface is used as a theoretical design platform, finite element analysis software is used as calculation support, optical band near-field detection is used as a representation tool, the theoretical mechanism of efficient and artificial nonlinear response of the BICs and the regulation and control influence of all physical parameters of the metasurface on the nonlinear BICs are explored, the physical mechanism and the working mechanism contained in the artificial nonlinear BICs are revealed, full-manual, efficient and adjustable nonlinear response is achieved, and the industrial application requirements of nonlinear optical devices are met.

The invention discloses a radio frequency band selecting repeater station resisting to self-excitation interference and a method of reducing the self-excitation interference. The radio frequency band selecting repeater station is provided with a field programmable gate array (FPGA) circuit. The FPGA circuit is provided with a band selecting filter, an interference signal estimator, and a gain adjustment module, wherein the band selecting filter receives and outputs initial signals containing original signals and self-excitation interference signals, the interference signal estimator is provided with a decorrelation module and a signal extraction module, the signal extraction module is connected with the decorrelation module and generates approaching signals at an output end of the signal extraction module, an input end of the gain adjustment module receives difference signals formed by subtracting the initial signals and the approaching signals, and the decorrelation module is connected with an output end of the gain adjustment module and removes relativity of output signals. Compared with the prior art, the radio frequency band selecting repeater station does not need high installation cost, can conduct self-excitation treatment on frequency spectrum time-varying global system for mobile communications (GSM) due to the fact that understanding relevant processing treatment is conducted, and has the function of being wide in application range.

The invention relates to the technical field of materials, and discloses a copper-based interlayer alloy and a preparation method thereof, and a composite connecting piece of ceramic and oxygen-free copper and a welding method thereof. The copper-based interlayer alloy comprises the following chemical components in percentage by weight: 22.5-23.5% of Ti, 9.5-10.5% of Sn, 3.5-4.5% of Ni, 0.5-1.0% of Ag, 0.1-0.5% of B, 0.1-0.5 % of Al, 0.01-0.2% of La and the balance of copper. The preparation method of the copper-based interlayer alloy comprises the step that elements are mixed and smelted into an alloy material. According to the welding method of the ceramic and the oxygen-free copper, the copper-based interlayer alloy is adopted for welding an aluminum oxide ceramic base material and an oxygen-free copper base material. The composite connecting piece of the ceramic and the oxygen-free copper is obtained by adopting the welding method. The copper-based interlayer material can be suitable for a direct brazing process, and the performance of a welded joint is good.

The invention discloses a nonferrous metal ore flotation collecting agent with a mercapto-oximido structure and the application thereof. The flotation collecting agent has a mercapto group and an oximido group and is used as nonferrous metal ore flotation collecting agent for flotation separation, so nonferrous metallic minerals in nonferrous metal ore can be highly efficiently recycled. Thus, it is achieved that one kind of flotation collecting agent is capable of simultaneously recycling sulfide minerals and oxide minerals in nonferrous metal ore, and recycling rate of nonferrous metal minerals in nonferrous metal ore is greatly increased. The nonferrous metal ore flotation collecting agent is especially suitable for recycling of nonferrous metal of mixed minerals containing sulfide minerals and oxide minerals simultaneously, recycling processes of nonferrous metal are simple, highly practical and practicably, and industrially application requirements are met.

The present invention discloses a metallic nanowire-graphene bridge structural composite material which comprises multiple layers of grapheme and metallic nanowires and is characterized in that the metallic nanowires are arranged at one side or two sides of the surface of a grapheme sheet layer, the metallic nanowires are welded to the metallic nanoparticles at the surface of the grapheme, and a metallic nanowire-graphene bridge structural composite material is formed. According to the composite material, the transmittance is larger than 85% to 92%, the surface resistance is smaller than 1 Omega at the same time, in an optimal embodiment, a transparent conductive film with the transmittance larger than 90% and the surface resistance smaller than 1 Omega is realized, and the current and future industrial application requirements are fully satisfied. Through growing the metallic nanoparticles with proper density at the surface of the single-layer or few-layer grapheme and assembling and welding the metallic nanowires (such as silver nanowires and copper nanowires) on the metallic nanoparticles, grapheme-metallic nanowires are formed and are assembled and processed to form a grapheme-metallic nanowires bridge structure, a transport path is provided for electrons, and thus the surface resistance of a grapheme assembly film is greatly reduced.

The invention discloses a preparation method for an environment-friendly nano-plating solution for a tin plate and a using method thereof, and belong to the field of food packaging. The preparation method comprises the following steps of first, adding gamma-aminopropyltriethoxysilane into desalted water to react slowly; then, adding gamma-(2,3-glycidoxypropyl)trimethoxysilane, and continuing stirring and reacting; next, slowly adding fluotitanic acid and hexafluorozirconic acid in sequence slowly, and stirring and reacting; and finally, adding ammonium dihydrogen phosphate, zinc dihydrogen phosphate and manganous nitrate in sequence, slowly stirring to completely dissolve the ammonium dihydrogen phosphate, the zinc dihydrogen phosphate and the manganous nitrate to obtain the transparent environment-friendly nano-plating solution. The using method comprises the following steps of first, diluting the plating solution to form a working solution by adopting the desalted water; then, spraying to obtain a continuous uniform liquid film; and finally, heating and curing to obtain a plating film. The plating solution can form a nano-plating film on the surface of the tin plate, has excellent binding force with a polymer coating is excellent, meanwhile, has resistance to corrosion, resistance to sulfur, resistance to acid and resistance to yellowing and has excellent welding performance,and meets the requirement on the application performance of the tin plate.

The invention discloses a catalyst for a side-chain alkylation reaction of toluene methanol, and a preparation method of styrene. The catalyst comprises: an ordered mesoporous molecular sieve catalystand a methanol oxygen-free dehydrogenation catalyst; and the ordered mesoporous molecular sieve catalyst is doped with alkali metal ions. The catalyst utilizes the better dehydrogenation performanceof the methanol oxygen-free dehydrogenation catalyst to produce a true alkylation reagent formaldehyde, and on the other hand, the alkali metal ion-modified mesoporous molecular sieve catalyst has excellent side-chain alkylation performance, the products styrene and ethylbenzene are obtained, and higher toluene conversion and styrene ethylbenzene selectivity can be obtained. The invention also provides the preparation method of styrene by using the catalyst.

The invention discloses an alkaline molecular sieve supported catalyst and a preparation method and application thereof. The catalyst is an alkaline molecular sieve supported metal catalyst. The alkaline molecular sieve supported metal catalyst is adopted to catalyze reductive amination of adipic dialdehyde to prepare hexamethylenediamine, the use of a highly toxic raw material, namely adiponitrile is avoided, and a route is clean and environment-friendly; and since the catalyst is the metal catalyst supported by an alkaline molecular sieve, the generation of macromolecular amination productsis effectively inhibited by utilizing the shape-selective effect of the molecular sieve and the hydrogenation effect of metal, and the catalyst shows excellent selectivity in the reaction of preparinghexamethylenediamine by reductive amination of adipic dialdehyde. The preparation method provided by the invention is simple and convenient to operate, meets industrial application requirements and is convenient for large-scale industrial production.

The invention discloses a method for preparing styrene by a coupling reaction of methanol dehydrogenation without oxygen and toluene side chain alkylation. In the method, a raw material gas containingtoluene and methanol is introduced into a reactor and contacted with a bifunctional catalyst, firstly methanol is subjected to a dehydrogenation reaction without oxygen to produce formaldehyde, and then the obtained formaldehyde and toluene is subjected to a side chain alkylation reaction to produce styrene. By the mutual coupling of the two reactions in the method, the toluene conversion, the methanol utilization and the styrene yield can be improved.

The invention discloses a calcium sulfide-based slow-release vulcanizing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing molten paraffin with zeolite particles and calcium sulfide particles, carrying out auxiliary cooling molding through a mold to obtain solid particles, spraying a coating liquid containing ethyl cellulose and stearic acid on the surfaces of the solid particles, and volatilizing a solvent at room temperature to obtain the calcium sulfide-based slow-release vulcanizing agent. The calcium sulfide-based slow-release vulcanizing agent can stably slowly release, vulcanize and deeply precipitate heavy metal ions in an acid solution system, is high in utilization rate, can avoid secondary pollution caused by H2S escape, is particularly suitable for purifying the heavy metal ions in an acid solution, and is simple and efficient in preparation process, low in raw material cost, and large-scale production and application are facilitated.

The invention belongs to the technical field of 3D printing additive manufacturing of metal materials, and discloses a method for inhibiting the formation of acicular martensite phase in 3D printing formed TC4 alloy structure. The TC4 powder is laser melted and deposited on the TC4 alloy plate base material to obtain a TC4 titanium alloy material whose shape meets the requirements; the obtained TC4 titanium alloy material is separated from the base material by wire cutting technology to obtain a TC4 alloy whose plastic toughness meets the use requirements Material. The method of the invention mainly solves the problem that the TC4 titanium alloy is easy to obtain fine needle-like α' martensite structure in the process of laser melting deposition forming, resulting in poor plasticity and toughness of the material. The resulting TC4 alloy has a room temperature tensile strength greater than 1000MPa, a yield strength of not less than 950MPa, and an elongation after fracture of more than 10%. It also has excellent plasticity while ensuring the strength requirements, meets industrial application requirements, reduces rapid manufacturing costs, and improves production efficiency. .

The invention discloses an aluminum-based interlayer alloy and a preparation method and application thereof, and belongs to the technical field of welding. The aluminum-based interlayer alloy comprises the following chemical components of, in percentage by weight, 11%-12% of Si, 2%-4% of Cu, 1%-2% of Mg, 0.6%-1.5% of Ni, 0.2%-1% of La, 0.1%-0.5% of B and the balance Al. When an aluminum-based interlayer material is applied to the welding process of two different types of welding base materials, the problem that in the direct brazing process, due to the fact that the bonding types of the two different types of welding base materials are different, the difference of linear expansion coefficients is larger, and consequently the welding performance is poor can be effectively solved, the shear strength of a joint during direct brazing is equivalent to or higher than the shear strength of an indirect brazing joint under the same welding process, and the corresponding welding performance is superior to the bonding strength of Al-Si series brazing filler metal and Ag-Cu-Ti brazing filler metal which are more widely applied in the market.