41results about How to "Large promotion area" patented technology

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.

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.

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.

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.

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.

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.

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 furnaceso 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.

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.

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.

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.