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Preparation method of Bi-2212 high-temperature superconductivity wire
ActiveCN102117682ASimple preparation processReasonable designSuperconductors/hyperconductorsSuperconductor devicesHigh-temperature superconductivityAlloy
The invention discloses a preparation method of Bi-2212 high-temperature superconductivity wire, comprising the following steps: firstly, filling superconductivity powder into a pipe; secondly, drawing to process and prepare a secondary compound; thirdly, after drawing the secondary compound, combining the secondary compound with a pure silver rod and a silver alloy rod, and then packing the compound into an AgMn alloy pipe so as to obtain a third compound; fourthly, drawing and processing the third compound into a wire; fifthly, carrying out semi-fused treatment on the wire, and obtaining the Bi-2212 high-temperature superconductivity wire after cooling a furnace. As for the preparation method, the process is simple, the design is reasonable, the manufacturing cost is low, and the application range is wide, and the method can be effectively applied to the preparation process of other relevant superconductivity wires. In the invention, one silver or silver alloy core wire is additionally arranged at the central part of a multi-core wire; therefore, the core wire can be prevented from being broken at the central part of multi-core Bi-2212 wire, the core breakage rate of the wire is obviously reduced, the processing uniformity of the wire is improved, the final uniformity of the wire is improved, and simultaneously the stretching performance of the wire is also improved; and the preparation method is beneficial to the winding of magnet and other applications of superconductivity wire.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Method for improving seedling cultivating efficiency of pomelo grafting
ActiveCN104160907AImprove healing abilityGerminate fastCultivating equipmentsHorticultureGrowth plantRootstock
The invention relates to a method for improving the seedling cultivating efficiency of pomelo grafting. A top side end bud grafting method is adopted. Top side end single-ear bud grafting is carried out on the optimal portion of a stock, the characteristic of apical dominance of plant growth can be brought into full play, growth of grafted ear buds is promoted, and the grafting success rate and the uniformity are improved; meanwhile, two to three times of stock bud picking after grafting can be reduced, labor for cutting the stock again after grafting survival can be saved, the seedling cultivating cost can be saved, the seedling cultivation rate of high-quality pomelo seedlings is increased, pomelo grafting can be carried out on anniversary, and the seedling cultivating efficiency of pomelo grafting can be multiplied. The method is easy to operate, easy to learn and popularize, stable in effect, free from toxic and side effect and pollution, small in investment, high in benefit, and wide in application prospect, and is a new effective way for farmers to become rich.
Owner:POMOLOGY RES INST FUJIAN ACAD OF AGRI SCI
Special scrubbing solution for footgear and preparation method thereof
InactiveCN103773617AEfficient killingEliminate odorNon-ionic surface-active compoundsOrganic detergent compounding agentsDeodorantWastewater
The invention discloses a special scrubbing solution for footgear and a preparation method thereof, and belongs to the technical field of a daily detergent. By adopting the preparation method, a humic acid / salt with sterilization and deodorization functions, a surfactant with soil removability, and the like are compounded, so that sterilization, deodorization and decontamination are organically fused together. The special scrubbing solution is prepared from an antibacterial deodorant, a surfactant, a fluorescent brightener, other adding assistants, deionized water and the like. Compared with the prior art, the special scrubbing solution has new characteristics of being good in sterilization and deodorization functions besides the traditional advantages of being mild and fragrant, resistant to hard water, anti-static, significant in decontamination effect and the like. In addition, the washed wastewater flows into a sewer or a urinal and the like, can be used as a sewage deodorant, and also can be used as a natural fertilizer for plants such as fruit trees and the like. The special scrubbing solution is simple in preparation technology, low in cost, high in practical value, green and environmental, and applicable to industrial production.
Owner:KUNMING UNIV OF SCI & TECH TECH IND SALES MANAGEMENT
Preparation method of high-current-carrying multi-core Bi-2223 superconducting tape under magnetic field
ActiveCN110085367AHigh densityIncreased flux pinning forceSuperconductors/hyperconductorsApparatus for heat treatmentCarrying capacityGrain boundary
The invention discloses a preparation method of a high-current-carrying multi-core Bi-2223 superconducting tape under a magnetic field. The method comprises the following steps: 1, adding Bi-2223 precursor powder and CaCuO2 power into a silver sleeve so as to obtain a first tube loading composite; 2, drawing and assembling the first tube loading composite so as to obtain a second tube loading composite; 3, drawing the second tube loading composite into a multi-core Bi-2223 tape; 4, preserving the heat of the multi-core Bi-2223 tape so as to obtain the pretreated multi-core Bi-2223 tape; and 5,thermally treating the pretreated multi-core Bi-2223 tape so as to obtain a multi-core Bi-2223 superconducting tape. The powder tube loading process improves the Bi-2223 grain orientation and grain boundary quality and improves the grain orientation and bonding properties so that the current carrying capacity of the Bi-2223 superconducting tape under the magnetic field can be enhanced and the application in magnets and other fields can be facilitated.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Preparation method of bi-system high-temperature superconducting material
InactiveCN102097184ASimple preparation processReasonable designSuperconductors/hyperconductorsSuperconductor devicesHigh-temperature superconductivitySolvent
The invention discloses a preparation method of a bi-system high-temperature superconducting material, comprising the following steps of: preparing Bi-2212 powder into a bi-system tape material by adopting a powder tubing method and a clustered drawing technology; dissolving a bonder by using methanol or ethanol as a solvent and then adding the Bi-2212 powder to mix evenly so as to obtain suspension liquid; causing the bi-system tape material to pass through a liquid trough which is loaded with the suspension liquid and then guiding the bi-system tape material to pass through a drying furnace so as to obtain a bi-system high temperature superconducting tape material which is externally coated with a superconducting film; and carrying out semi-melting treatment on the bi-system high temperature superconducting tape material which is externally coated with the superconducting film and then obtaining the bi-system high-temperature superconducting tape material after cooling with a furnace. The preparation process of the invention is simple, reasonable in design, low in manufacturing cost and large in popularization. In the invention, a layer of Bi-2212 superconducting film is added on the surface of the bi-system tape material prepared by a PIT method so that the silver hypergeometric of the tape material is decreased, the effective superconducting area is increased and the engineering current density of the bi-system tape material is improved.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Notopterygium root seed processing method and black mulching film land cultivating method of notopterygium roots
InactiveCN105684597AShorten germination cycleImprove germination rateSeed and root treatmentClimate change adaptationAridNotopterygium incisum
The invention discloses a notopterygium root seed processing method and a black mulching film land cultivating method of notopterygium roots. The notopterygium root seed processing method comprises the following steps: uniformly stirring fresh notopterygium root seeds harvested from July 10 to July 31 in current year with arenosols in a mass ratio of 5 to 1, controlling the humidity at 70%, stacking the mixture at an overshadowed environment with air humidity higher than or equal to 80%, turning once in each 7 days, and planting after October 1. According to the notopterygium root seed processing method, the notopterygium root seeds are processed by virtue of arenosols, the primary germination cycle of at least 8 months is shortened to be more than 70 days, and the emergence rate is increased to 75%; by simultaneously planting broad beans in a seed farm, soil nutrients are increased, and the stems of the broad beans can be taken as brackets for the notopterygium roots, so that lodging is prevented, and the quality and the yield of the seeds are increased; and by virtue of techniques of mulching film cultivation and the like, plants originating in cold highland areas are popularized to arid and semi-arid areas with annual rainfalls higher than 500mm, and the popularization area is increased by more than ten times.
Owner:LINTAO AGRI SCI & EDUCATION CHINESE MEDICINAL MATERIALS DEV CO LTD
Steel billet water beam black mark temperature difference control method in walking beam type heating furnace
ActiveCN110231840AImprove heating qualityMeet heating control needsTemperatue controlFurnace typesThermodynamicsTemperature difference
The invention relates to a steel billet water beam black mark temperature difference control method in a walking beam type heating furnace, belonging to the technical field of heating furnace optimization control. The steel billet water beam black mark temperature difference control method in the walking beam type heating furnace comprises the following steps: determining a deviation value of theintegrated heat conductivity coefficient caused by the shielding effect of the water beam black mark part and the non-water beam black mark part through the data regression of a buried couple experiment; calculating the temperature difference of the water beam black mark part during the heating process of the steel billet through establishing a temperature tracking calculation model of the water beam black mark part; and performing suitable adjustment on the time of the steel billet in the furnace time according to the different black mark part temperature difference control requirements, so as to form a perfect steel billet water beam black mark temperature difference control method. The steel billet water beam black mark temperature difference control method in the walking beam type heating furnace can make the water beam black mark temperature difference of the steel billet out of the furnace meet the heating control requirements; and the control method has strong operability and has a large promotion value.
Owner:CHONGQING CISDI THERMAL & ENVIRONMENTAL ENG CO LTD +1
Method for preparing superconducting joint of Bi-2212 wire rod
ActiveCN103855586ASimple preparation processPreparation applicableLine/current collector detailsWire rodEngineering
The invention discloses a method for preparing a superconducting joint of a Bi-2212 wire rod. The method comprises the following steps: 1. cleaning a to-be-connected end of the Bi-2212 wire rod, and polishing the end; 2. corroding the polished surface of the wire rod subjected to polishing in a corrosive solution; 3. by taking a metal pipe of which one end is closed and the other end is open as a connecting piece, forming two through holes in the closed end of the metal pipe, and assembling two corroded wire rods and the metal pipe to obtained an assembly part; and 4. performing partial molten heat treatment on the assembly part to obtain the superconducting joint of the Bi-2212 wire rod. By adopting a chemical corrosion mode, a silver layer at the end of the Bi-2212 wire rod is effectively corroded, a superconducting core is exposed under the condition that a ceramic core is not damaged, a contact area between the ceramic core and the peripheral original powder is greatly enlarged, the performance of the superconducting joint is improved, and the current-carrying performance of the superconducting joint in the prepared superconducting joint of the Bi-2212 wire rod reaches 83-90 percent of the performance of the wire rod.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Color paste for nanometer modified environmentally-friendly ferric oxide machine and preparation method thereof
The invention discloses a color paste for a nanometer modified environmentally-friendly ferric oxide machine, which is composed of ferric oxide pigment, aqueous nanometer concentrated pulp, aqueous grinding resin, wetting dispersant, a pH value regulator, moisturizing cosolvent, defoamer and water. The raw materials are counted in percentage by weight: the ferric oxide pigment: 30-50% of the aqueous nanometer concentrated pulp, 10-15% of the aqueous grinding resin, 3-7% of the wetting dispersant, 6-15% of the pH value regulator, 0.1-0.5% of the moisturizing cosolvent, 10-12% of defoamer and 0.1-0.3% of the balance of water. The ferric oxide color paste obtained by the invention has the functions of environment protection, health care and convenient use. The ferric oxide color paste obtained by the invention has favourable intermiscibility with majority of emulsion paint and wider popularizing range, does not flocculate, precipitate or seriously distribute water if placed for two years, and has favourable storage stability.
Owner:SUZHOU SUNMUN TECH CO LTD
Cleaning method for effectively removing impurities on ceramic plates
The invention discloses a cleaning method, in particular to a cleaning method for effectively removing impurities on ceramic plates, and aims to provide a cleaning method for effectively removing the impurities on the ceramic plates by means of formula washing with ultrasonic instruments and manual washing and by means of chemical components. The cleaning method is applicable to cleaning various ceramic materials; the impurities on the ceramic materials can be removed effectively during the cleaning process, the ceramic materials can be reused, and cost of enterprises is lowered. The cleaning method has the advantages of process simplicity, low cost, high benefit, high applicability and promising promotion prospect and the like.
Owner:桐乡市中洲化纤有限责任公司
Corn population artificial synthesis method for genetic breeding
ActiveCN108812300AWide adaptabilityStrong disease resistancePlant genotype modificationDiseaseHybrid seed
The invention discloses a corn population artificial synthesis method for genetic breeding. The invention aims to breed a corn species having the advantages of high yield, wide application range, strong disease resistance, and quick dehydration, moreover, the corn should be simply or mechanically cultured and harvest in production in mountainous region of southwest China; and the group is established by selecting the advantages of germplasm materials and carrying out multi-stresses of high strength and multi-area complicated ecological environment stress. The tropic corn Suwan germplasm is themain material, the shortages of the tropic corn Suwan germplasm such as slow dehydration, low seeding rate, bad economical character, and the like are overcome; hybrid seeds suitable for future production are obtained; and the method has an important meaning for the corn breeding and genetic research in the mountainous region of southwest China.
Owner:贵州省旱粮研究所
APP terminal service and networking system and method of system on chip
InactiveCN104462230ATimely processingTimely analysisWeb data retrievalSpecial data processing applicationsStatistical analysisNetwork link
The invention discloses an APP terminal service and networking system and method of a system on a chip. The APP terminal service and networking system is divided into a hardware platform, a mobile terminal and a server database system, wherein the hardware platform comprises a master control module, an APP protocol module, a Bluetooth module and an expansion interface module. A network communication module of the mobile terminal is in communicating connection with the Bluetooth module of the hardware platform, transmits data to an APP module of the mobile terminal, collects and processes the data through a protocol and meanwhile performs information share. A server database is stored in a background server system, and the background server system provides network linking service and server database system service for the mobile terminal, collects customer information and performs statistic analysis.
Owner:CHIPSEA TECH SHENZHEN CO LTD
Strong-flavor flue-cured tobacco variety third Xiang tobacco delay slow baking method
PendingCN109380759APromote degradationRaise content levelTobacco preparationCooking & bakingEngineering
The invention relates to a strong-flavor flue-cured tobacco variety third Xiang tobacco delay slow baking method. On the basis of traditional three-stage baking, the delay slow baking method is characterized in that delay slow backing is conducted for 12 h in the wilting stage and the stem drying stage, the method is mainly characterized in that baking is conducted until tobacco leaves are basically all yellow and become sufficient wilting collapse, in the wilting stage when main veins become soft, the temperature continues to be stabilized for 12 h extension, afterwards, slow warming is conducted, stable humidity elimination is conducted, tobacco stems become yellow, and a yellow-piece yellow-stem small roller is obtained; in the stem drying stage that the tobacco leaves are all dried toform a big roller, the temperature is stabilized for 12 h extension, and finally baking is conducted until all the tobacco stems are dried. According to the third Xiang tobacco delay slow baking process, rapid degradation of chlorophyll can be promoted, the high carotenoid content level and proper polyphenol oxidase activity are maintained, the first-class tobacco rate of the tobacco leaved obtained after baking is increased by 4.4%, the average price is increased by 2.72 yuan / kg, the average tobacco leaf income per mu is increased by about 334 yuan, and the tobacco leaf maturity, tissue structure, identity, oil content and tobacco leaf color are all superior to those of a traditional three-stage baking process.
Owner:CHINA TOBACCO CENTRAL SOUTH AGRICULTURAL EXPERIMENTAL STATION +1
The invention discloses a nNetwork sales channel management method
PendingCN109615483ALow costReduce transaction riskBuying/selling/leasing transactionsNetwork terminationWeb site
The invention relates to the technical field of electronic commerce. The invention, and particularly relates to a network sales channel management method. Tthe enterprise accesses the network information service point through the network terminal; t; the enterprise is connected with the network information service point through the network terminal; i; inputting product information and network price information of an enterprise into the network information service point, and issuing investment attraction information, t, the sales network of the enterprise is connected with the network information service point; P; products on the sales network and product information in the network information service point are updated at the same time. the consumer browses the product information in the network information service point and accesses the product information on the enterprise website through the network terminal; d; determining purchased products, submitting orders and paying to the server, matching the products to corresponding channel providers or enterprises by the server according to the order information, delivering the products by the channel providers or the enterprises according to addresses provided by the consumers, confirming that the commodities are received by the network server after the consumers confirm that the commodities are lossless, and prompting the enterprises or the channel providers to extract the commodities by the network server.
Owner:温州大卖客网络科技有限公司
A kind of preparation method of Bi-based high-temperature superconducting wire/tape
ActiveCN103440932BSimple preparation processReasonable designCable/conductor manufactureHigh-temperature superconductivityManganese
The invention discloses a method for preparing a Bi high temperature superconducting line or strip material. The method comprises the following steps: firstly, preparing a primary composite body; secondly, drawing the primary composite body, and then annealing the drawn primary composite body so as to obtain a line material; thirdly, bundling a plurality of line materials, and then packing into a silver-base alloy pipe so as to prepare a secondary composite body; fourthly, drawing the secondary composite body, and then annealing the drawn secondary composite body so as to obtain a Bi line material; and fifthly, putting the Bi line material into an atmosphere furnace for heat treatment so as to obtain the Bi high temperature superconducting line material; or rolling the Bi line material into a Bi strip material, and then putting into the atmosphere furnace for heat treatment so as to obtain the Bi high temperature superconducting strip material. According to the method, the manufacturing dislocation quantity of silver and silver-manganese alloy is effectively controlled by adopting an unconventional annealing process, so that the phenomenon that a silver super interface is severely rough caused by an excessively soft silver sheath is effectively avoided, and the current-carrying performance of the Bi line or strip material is improved.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Preparation method for Bi-2212 high-temperature superconducting wires
ActiveCN101714429BSimple preparation processReasonable designSuperconductors/hyperconductorsSuperconductor devicesHigh temperature superconductingAtmosphere
The invention discloses a preparation method for Bi-2212 high-temperature superconducting wires. The preparation method for Bi-2212 high-temperature superconducting wires comprises the following steps of: 1, drawing and machining raw materials to obtain intermediate size filaments of Bi-2212 high-temperature superconducting wires; 2, performing high temperature sintering on the intermediate size filaments at the temperature of between 800 and 880 DEG C by using a high temperature sintering furnace to obtain intermediate size filament sintered blanks, and then machining intermediate size filament sintered blanks into a design size by using a drawing apparatus to obtain initial products of the Bi-2212 high-temperature superconducting wires; and 3, performing semi-molting treatment on the initial products of the Bi-2212 high-temperature superconducting wires in the atmosphere of pure oxygen by using a high temperature atmosphere melting furnace. The method has simple, easy and practical steps; the prepared Bi-2212 high-temperature superconducting wires have excellent performance; and bubbling phenomenon of the wires in the process of semi-melting heat treatment is avoided, and meanwhile crystal grain arrangement of the Bi-2212in the wires is also improved and current-carrying performance and uniformity of the wires are also improved.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Security defending system of electric water heater and electric water heater
InactiveCN106500358AReduce malfunctionLarge promotion areaFluid heatersElectricityMechanical components
The invention provides a security defending system of an electric water heater. The security defending system of the electric water heater comprises a hydraulic pressure control device and a microswitch, wherein the hydraulic control device is provided with a reducible ejector rod which can move under the effect of the hydraulic pressure; the hydraulic pressure control device is arranged on a water inlet pipe of the electric water heater and is communicated with the water inlet pipe, or the hydraulic pressure control device is arranged on a water outlet pipe of the electric water heater and is communicated with the water outlet pipe; the microswitch is electrically connected to a safety plug of the electric water heater; the top rod of the hydraulic pressure control device movably touches the microswitch, the microswitch sends out a power outage signal, the safety plug receives the power outage signal of the microswitch, and the safety plug switches off a heating circuit of the electric water heater. The invention further provides the electric water heater. Through the structure, control through mechanical components is achieved through a pressure unit, the mechanical components are more reliable than electronic signals, and thus malfunctions of the whole security system can be reduced as much as possible.
Owner:广东奥荣电器有限公司
A method for preparing bi-2212 precursor powder by suspension sintering
ActiveCN110817957BInhibition of segregationHigh quality and purityBismuth compoundsOxalateHigh volume manufacturing
The invention discloses a method for preparing Bi-2212 precursor powder through a suspension sintering method. The method comprises the specific processes: mixing Bi2O3, Ca(OH)2, SrCO3 and CuO, then preparing oxalate mixed powder by adopting an oxalate coprecipitation method, and then sequentially carrying out heating and heat preservation, preliminary sintering, high-temperature sintering and phase-forming sintering to obtain the Bi-2212 precursor powder. The oxalate mixed powder prepared by the coprecipitation method is used as raw material powder, the quality purity of a Bi-2212 phase in the Bi-2212 precursor powder is effectively improved, and a step-by-step suspension sintering method is combined; through phase formation is effectively promoted, the problem of powder segregation caused by melting of a low-melting-point phase is solved, the problem of incomplete final phase formation caused by too low local temperature due to large heat absorption of the Bi-2212 phase directly generated from oxide powder is avoided, the uniformity and quality of the Bi-2212 precursor powder are greatly improved, and the method is suitable for mass production.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
A preparation method of high current-carrying multi-core bi-2223 superconducting tape under magnetic field
ActiveCN110085367BHigh densityIncreased flux pinning forceSuperconductors/hyperconductorsApparatus for heat treatmentCondensed matter physicsGrain boundary
The invention discloses a preparation method of a high-current-carrying multi-core Bi-2223 superconducting tape under a magnetic field. The method comprises the following steps: 1, adding Bi-2223 precursor powder and CaCuO2 power into a silver sleeve so as to obtain a first tube loading composite; 2, drawing and assembling the first tube loading composite so as to obtain a second tube loading composite; 3, drawing the second tube loading composite into a multi-core Bi-2223 tape; 4, preserving the heat of the multi-core Bi-2223 tape so as to obtain the pretreated multi-core Bi-2223 tape; and 5,thermally treating the pretreated multi-core Bi-2223 tape so as to obtain a multi-core Bi-2223 superconducting tape. The powder tube loading process improves the Bi-2223 grain orientation and grain boundary quality and improves the grain orientation and bonding properties so that the current carrying capacity of the Bi-2223 superconducting tape under the magnetic field can be enhanced and the application in magnets and other fields can be facilitated.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
A kind of preparation method of bi‑2212 superconducting wire/tape
ActiveCN105957640BAvoid roughnessAvoid uniformitySuperconductors/hyperconductorsSuperconductor devicesPre treatmentSingle-core
The invention provides a preparation method of a Bi-2212 superconducting wire / strip. The method comprises the following steps that 1) Bi-2212 precursor powder is placed in a heat treatment furnace to remove air; 2) the Bi-2212 precursor powder is pretreated; 3) the Bi-2212 precursor powder is filled into a hydraulic tube in a vibration manner; 4) isostatic pressing molding is carried out to obtain a rod base, the rod base is mounted in a silver tube, the two ends of the silver tube are sealed, and a Bi-2212 single-core complex is obtained; 5) bundle-drawing is carried out on prepared single-core wires to obtain a Bi-2212 multi-core wire; and 6) heat treatment is carried out to obtain the Bi-2212 superconducting wire, or heat treatment is carried out after rolling to obtain the Bi-2212 superconducting strip. According to the invention ,the problem that a silver super interface is unsmooth and low in processing uniformity in the processing process can be solved effectively, and the current carrying performance of the Bi-2212 superconducting wire / strip is improved substantially.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
A special washing liquid for footwear and its preparation method
InactiveCN103773617BEfficient killingEliminate odorNon-ionic surface-active compoundsOrganic detergent compounding agentsFruit treeAgricultural engineering
Owner:KUNMING UNIV OF SCI & TECH TECH IND SALES MANAGEMENT
A method for analyzing the dissemination trend of microblog network advertising information
ActiveCN110335059BGood spread effectGood rate of returnAdvertisementsWeb data indexingInformation propagationNetwork structure
A method for analyzing the dissemination trend of microblog network advertising information, comprising the following steps: Step 1, data collection, for obtaining social network data, and preprocessing the social network data to make it an input of the model ; Step 2, constructing a spatial network, which is used to generate a spatial network structure according to the connection characteristics of each user node in the real network; Step 3, analyzing the dynamics of microblog advertising information dissemination, setting network users into five states, and constructing based on the mean field method The dynamic equation of each state, according to the dynamic variation of each state in the dynamic equation group, analyzes the propagation trend of advertising information in the microblog network; step 4, output of analysis results, input the data collected by the data acquisition module into the microblog advertisement The information dissemination dynamics analysis module obtains the peak moment of advertisement information dissemination and the number of advertisement audiences. The invention effectively realizes the analysis of the dissemination trend of microblog network advertisement information.
Owner:ZHEJIANG UNIV OF TECH
Preparation method of Bi-2212 high-temperature superconductivity wire
ActiveCN102117682BSimple preparation processReasonable designSuperconductors/hyperconductorsSuperconductor devicesHigh-temperature superconductivityAlloy
The invention discloses a preparation method of Bi-2212 high-temperature superconductivity wire, comprising the following steps: firstly, filling superconductivity powder into a pipe; secondly, drawing to process and prepare a secondary compound; thirdly, after drawing the secondary compound, combining the secondary compound with a pure silver rod and a silver alloy rod, and then packing the compound into an AgMn alloy pipe so as to obtain a third compound; fourthly, drawing and processing the third compound into a wire; fifthly, carrying out semi-fused treatment on the wire, and obtaining the Bi-2212 high-temperature superconductivity wire after cooling a furnace. As for the preparation method, the process is simple, the design is reasonable, the manufacturing cost is low, and the application range is wide, and the method can be effectively applied to the preparation process of other relevant superconductivity wires. In the invention, one silver or silver alloy core wire is additionally arranged at the central part of a multi-core wire; therefore, the core wire can be prevented from being broken at the central part of multi-core Bi-2212 wire, the core breakage rate of the wire isobviously reduced, the processing uniformity of the wire is improved, the final uniformity of the wire is improved, and simultaneously the stretching performance of the wire is also improved; and thepreparation method is beneficial to the winding of magnet and other applications of superconductivity wire.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Preparation method of bi-system high-temperature superconducting material
InactiveCN102097184BSimple preparation processReasonable designSuperconductors/hyperconductorsSuperconductor devicesHigh-temperature superconductivitySolvent
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Multi-purpose dehydrogenation reaction device
ActiveCN107081115BWide range of usesMeet the dehydrogenation reactionChemical/physical processesThermodynamicsPtru catalyst
Multi-purpose dehydrogenation reaction device, including a top cover, a reactant inlet is set in the middle of the top cover, an upper head and a lower head at the bottom are respectively arranged on both sides under the top cover, and the upper head and the lower head are fixedly connected by a cylinder joint The upper and lower ends of the cylinder section are respectively provided with through holes, and a wire mesh demister is arranged between the upper through holes, and a steam input pipe is arranged above the wire mesh demister; the through hole and the wire mesh demister are arranged The upper gas riser is connected; a catalyst bed is set between the lower ends of the barrel; the gas to be dehydrogenated enters the reactor from the reactant inlet, and is fully mixed with the water vapor input from the steam input pipe, reducing the partial pressure of the reactant. When the mixture of reactants and water vapor enters the wire mesh demister downwards, the wire mesh demister separates the gas and liquid, the liquid enters the cylinder section, and the gas enters the reaction zone where the ceramic balls support the catalyst. After the dehydrogenation reaction The product flows out from the outlet; the invention has the characteristics of low cost and simple structure.
Owner:SHAANXI UNIV OF SCI & TECH
A method for improving the efficiency of grapefruit grafting and raising seedlings
ActiveCN104160907BImprove healing abilityGerminate fastCultivating equipmentsHorticultureGrowth plantRootstock
The invention relates to a method for improving the seedling cultivating efficiency of pomelo grafting. A top side end bud grafting method is adopted. Top side end single-ear bud grafting is carried out on the optimal portion of a stock, the characteristic of apical dominance of plant growth can be brought into full play, growth of grafted ear buds is promoted, and the grafting success rate and the uniformity are improved; meanwhile, two to three times of stock bud picking after grafting can be reduced, labor for cutting the stock again after grafting survival can be saved, the seedling cultivating cost can be saved, the seedling cultivation rate of high-quality pomelo seedlings is increased, pomelo grafting can be carried out on anniversary, and the seedling cultivating efficiency of pomelo grafting can be multiplied. The method is easy to operate, easy to learn and popularize, stable in effect, free from toxic and side effect and pollution, small in investment, high in benefit, and wide in application prospect, and is a new effective way for farmers to become rich.
Owner:POMOLOGY RES INST FUJIAN ACAD OF AGRI SCI
Intelligent automation equipment for straw weaving experience
PendingCN114743306ALarge promotion areaGood inheritanceCoin-freed apparatus detailsCane mechanical workingRice strawIntelligent machine
The invention discloses intelligent automation equipment for straw weaving experience, and relates to the technical field of straw weaving devices.The intelligent automation equipment comprises a main body device, automatic weaving equipment is arranged in the main body device, a material containing box is arranged on the inner wall of the automatic weaving equipment, and a straw weaving chamber is arranged on the front face of the automatic weaving equipment; a finished product display area is arranged below the straw weaving chamber, and a finished product taking opening is formed in the left side of the straw weaving chamber. The controller controls and starts the intelligent manipulator to start to run a set program for knitting, a straw knitting process in the straw knitting chamber can be viewed through the transparent window in the knitting process of the intelligent manipulator, and a traditional process finished product also brings the field pleasure of returning to the original nature to a user; and the first buffer spring and the second buffer spring mounted at the bottom of the discharging sealing door absorb the impact force bearing the bottom of the buffer plate, and the first buffer spring and the second buffer spring deform to generate counter-acting force to counteract the impact, so that the possibility that the discharging sealing door is damaged due to reset vibration is reduced.
Owner:DONGGUAN UNIV OF TECH
A kind of preparation method of bi-2212 wire rod superconducting joint
ActiveCN103855586BSimple preparation processPreparation applicableLine/current collector detailsWire rodEngineering
The invention discloses a method for preparing a superconducting joint of a Bi-2212 wire rod. The method comprises the following steps: 1. cleaning a to-be-connected end of the Bi-2212 wire rod, and polishing the end; 2. corroding the polished surface of the wire rod subjected to polishing in a corrosive solution; 3. by taking a metal pipe of which one end is closed and the other end is open as a connecting piece, forming two through holes in the closed end of the metal pipe, and assembling two corroded wire rods and the metal pipe to obtained an assembly part; and 4. performing partial molten heat treatment on the assembly part to obtain the superconducting joint of the Bi-2212 wire rod. By adopting a chemical corrosion mode, a silver layer at the end of the Bi-2212 wire rod is effectively corroded, a superconducting core is exposed under the condition that a ceramic core is not damaged, a contact area between the ceramic core and the peripheral original powder is greatly enlarged, the performance of the superconducting joint is improved, and the current-carrying performance of the superconducting joint in the prepared superconducting joint of the Bi-2212 wire rod reaches 83-90 percent of the performance of the wire rod.
Owner:NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
One-key release and statistics method based on multiple video platforms
PendingCN114756600ALarge promotion areaImprove the performance of posting videosVisual data miningStructured data browsingComputer hardwareEngineering
The invention discloses a one-key release and statistics method based on multiple video platforms, and belongs to the technical field of video release of the multiple video platforms, and the method specifically comprises the steps: 1, binding target platforms, setting a transmission module, connecting the transmission module with each target platform through a data transmission channel, and numbering each data transmission channel; 2, establishing a target platform video release method library, and associating the target platform video release method library with the transmission module; step 3, acquiring a video needing to be published, marking the video as a target video, sending the target video to a transmission module, and publishing the received target video to all target platforms by the transmission module; 4, acquiring synchronization information of the published target video in real time, and performing visual data statistics according to the acquired synchronization data; for a plurality of video platforms, a user does not need to manually upload and publish videos on a single platform, so that the working efficiency is improved, and the working repeatability is reduced.
Owner:SHANGHAI TRUELAND INFORMATION & TECH CO LTD
Artificial method of maize population for genetic breeding
ActiveCN108812300BDehydration fastStrong practice and explorationPlant genotype modificationEcological environmentGermplasm
The invention discloses an artificial synthesis method for a corn population used for genetic breeding. The present invention aims at breeding superior materials with high matching, wide adaptability, strong disease resistance (reversal), fast dehydration, and suitable for light and simplified cultivation or mechanized cultivation and harvesting in the future production of Southwest mountainous corn regions. The selection of complementary advantages of materials and the coercive coercion of high-intensity, multi-regional and complex ecological environment pressures form groups. The focus of the inventor's improvement and amplification is mainly on the tropical Suwan germplasm, which solves the shortcomings of slow dehydration, low seed yield and poor agronomic traits of the tropical Suwan germplasm, in order to breed hybrids suitable for future actual production needs. species; it has a strong practical and exploratory role in maize breeding and genetic research in southwest mountainous areas.
Owner:贵州省旱粮研究所
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