528results about How to "Shorten aging time" patented technology

The invention provides a testing device and a testing method of electricity-heat-mechanical stress three-factor combined ageing for transformer paper oil insulation ageing study; the testing device comprises an electric heating ageing oven, in which a transformer paper oil insulation simulator, a shake unit and a temperature control device used for controlling the temperature of the electric heating ageing oven. The shake unit can drive the simulator to vibrate, the simulator is electrically connected with a high-voltage power supply; the testing method includes vacuum drying and oil impregnation of insulating paper, attaching the paper to the earth electrode in a stainless steel case of the testing device, winding coils as a high voltage electrode outside the insulating paper and the earth electrode and injecting insulating oil to the stainless steel case; connecting a high tension lead with the high-voltage power supply and starting the shake unit; sampling the insulating paper and the insulating oil alternately and measuring insulation ageing parameters.

The invention comprises an Nb-containing micro-alloyed high-carbon steel hot-rolled wire rod and a manufacturing method thereof. The invention belongs to the technical field of hot-rolled wire rods. The hot-rolled wire rod comprises the components of, by mass: 0.83-1.00% of C, 0.15-0.35% of Si, 0.6-0.9% of Mn, 0-0.50% of Cr, 0-0.15% of V, 0.01-0.20% of Nb, and balance of Fe. A converter is adopted; a double slag method is adopted; and high tensile carbon operation is adopted. Slag is blocked, and molten steel is tapped. Recarburization is carried out by using a low-nitrogen recarburizer. When steel is fetched from an LF refining station, an oxygen activity is controlled below 10ppm. In a refining final slag, a total amount of FeO and MnO is no higher than 3%. An inclusion modification treatment is carried out on a Ca-Si line. 160mm*160mm small billets are adopted. Terminal electromagnetic stirring is adopted in cooperation of a crystallizer. Full-protection and constant-pulling-speed casting is carried out by using a continuous casting machine. A reasonable secondary cooling system is adopted. An appropriate open rolling temperature is controlled, such that shrinkage cavity welding probability is increased. Pre-water-cooling and phase-transformation-strengthening cooling technology are applied for controlling tissue and performance. After aging, mechanical property tensile strength of the wire rod is higher than 1280MPa, and an area reduction is greater than 30%.

The invention belongs to the field of modern isolation analysis materials science and engineering, it relates to preparation method and application of microwave assistant molecular print magnetic microsphere, the procedure as follows: adopting microwave chemical reactor, taking nanometer magnetic fluid as magnetic nuclei, by cleaning and external modification, ultrasound detracting to water; mounted pattern molecule and functional monomer self-assembly; adding polymeric liquor by step, cross link agent and initiator, making it mixes and separates with magnetic fluid fully by stirring of machine, microwave procedure controlled temperature and heats up, until raising polymerization; Magnetic separates the foregoing magnetic microsphere, removing mounted pattern molecule, vacuum drying, aging. The molecular print magnetic microsphere has not only recognize ability of mounted pattern molecule and its analogue, but also has the approved characteristic of 'gathering hyphen recycle', the process of preparation heats up with microwave, decreasing the time of print aggregation, improving homogeneity and print efficiency of polymer form. The molecular print magnetic sphere applies to gather, isolate and analysis of structure analogue in the environmental sample, eatable etc complex samples.

The invention discloses a one-way moisture-transferring fabric and a processing method thereof. The fabric is in a double-layer double-side mesh structure, wherein one side of the fabric which is close to the skin i.e., an internal layer uses polypropylene fibers while the other side i.e., an external layer uses terylene fibers, and the internal layer and the external layer are connected by terylene macrofibers with recesses on the surface and special-shaped cross sections. The processing method of the fabric comprises: that in the process of weaving the fabric, polypropylene fibers are selected as internal layer materials, polyester fibers are selected as external layer materials, and terylene macrofibers with recesses on the surface and special-shaped cross sections are selected as connecting material, thereby weaving the double-layer double-side mesh structured fabric whose internal layer is polypropylene fibers, external layer is terylene fibers, and the internal layer and the external layer are connected by the terylene macrofibers with recesses on the surface and special-shaped cross sections; that connection points which are evenly arranged are established between the internal and the external layers, wherein the connection points of the internal and the external layers are connected to each other through the terylene macrofibers; and that in a dyeing after-finishing process, the fabric is processed to be hydrophilic, quick-drying, and soft. The fabric in the invention is well in hygroscopic property and moisture-transferring property, and has the effects of one-way moisture transferring and quick drying.

A preparation method of a phenolic resin base carbon aerogel comprises steps of: (1) preparing a phenolic resin solution with a content of 10-50wt%; (2) gelling and ageing under high temperature and high pressure; (3) carrying out supercritical drying and discharging to obtain an organic aerogel; (4) cracking, carbonizing and discharging to obtain the aerogel. The preparation method of the carbon aerogel of the invention has the following three advantages: 1) a sodium carbonate catalyst does not need to be added in the first step, and the carbon aerogel has high purity and does not contain metal ion impurity; 2) the raw material phenolic resin is cheap; 3) a total process time is shortened that the organic aerogel can be obtained in one day and that the carbon aerogel can be obtained in two days.

The invention relates to a preparation method of nano-sized magnesium hydroxide, which is characterized in that a soluble magnesium salt solution and soluble lye which are added with a dispersant react in a reactor which is put in an ultrasonic tank and provided with a stirrer to obtain magnesium hydrate suspension; the magnesium hydrate suspension is processed through ultrasonic ageing at room temperature; the magnesium hydrate which is processed through ageing is dried through heating to obtain nano-sized magnesium hydroxide powders after being filtered and washed. The ultrasonic wave which is exerted during the reaction process promotes the nucleation, inhibits crystal nucleus growth velocity, and controls the size and the distribution of particles; the ultrasonic cavitation avoids the occurrence of aggregate phenomenon, and increases the uniformity and the dispersibility of nano particles; the thermal effect of the ultrasonic wave increases the crystallinity degree of the nano particles and shortens the ageing time of samples. Therefore, the preparation method has the advantages of simple technology, short production period, mild production conditions, good product dispersibility, and even particle distribution.

The present invention relates to a production process of veneered strip-glued board. Said process includes the following steps: sawing raw material to obtain squared timber, drying, defining thickness and processing double faces, making strips by using multiblade saw, making board, coating adhesive, matching board, forced cooling, first sanding, sticking transverse single board, prepressing, hot-pressing, forced cooling, secondary sanding, sticking surface board, secondary prepressing, secondary hot-pressing, cutting edge, third sanding, sorting finished products and putting the finished products into storage. The urea-formaldehyde adhesive formula used in the adhesive-coating process is formed from (by weight portion) 100 portions of low-formaldehyde urea-formaldehyde resin, 20-35 portions of filling agent, 5-10 portions of formaldehyde trapping agent and 0.4-1.0 portion of solidifying agent.

The invention discloses a bougainvillea spectabilis breeding method and belongs to the technical field of nursery stock propagation. The bougainvillea spectabilis breeding method includes the steps of standardized planting and management of bougainvillea spectabilis female parents and high-altitude layering of bougainvillea spectabilis child branches. According to the bougainvillea spectabilis breeding method, high-altitude layering is performed on the bougainvillea spectabilis child branches through the standardized planting and management of the bougainvillea spectabilis female parents, planting can be achieved in the current year, seedlings can be sold in the current year, and the supply period of the seedlings is greatly shortened; meanwhile, the high-altitude layering technological parameters are optimized, the rooting percentage of the obtained high layered branches is high, the transplanting survival rate of the high layered seedlings is high, and the problems that the supply period of the bougainvillea spectabilis seedlings is long, the seedling breeding conditions are critical, and the seedling breeding cost is high are solved.

The invention belongs to the technical field of ferrous metallurgy technology, and especially provides a production technology of finish-rolled ribbed bars. The technological line provided by the invention comprises steps of billet heating, rolling, on-line controlled cooling, cold bed natural cooling, scaling, and stack cooling. Medium-carbon steel is adopted in square billets with a dimension of 150mm*150mm. A three-stage heating method comprising preheating, heating, and soaking is adopted in the heating process. An initial rolling temperature is controlled at 1000 DEG C to 1100 DEG C in the rolling process. In the on-ling controlled cooling process, the temperature is controlled at 920 to 1000 DEG C when the billets are delivered into a water tank; a one-step cooling method is adopted; self-tempering temperatures of PSB785 and PSB830 are controlled at 480 to 550 DEG C; and a self-tempering temperature of PSB930 is controlled at 430 to 480 DEG C. The cooling speed is controlled at 1-5 DEG C/s in the cold bed natural cooling process. Off-line stack cooling under a temperature of 150 to 350 DEG C is carried out in the stack cooling process, wherein a stack cooling time is lower than 48 hours. Various properties of the finish-rolled ribbed bars provided by the invention can completely satisfy the requirements of users.

The invention relates to a production method and device of fine-grained low-chloride rare earth carbonate. The production method is mainly characterized in that rare earth chloride and a carbonate solution are added in a concurrent flow feeding way on a designed special precipitation reaction device, the spatial separation of a reaction zone and a crystallization zone is realized by controlling the feeding speed and discharging speed and controlling the aging time of rare earth carbonate, and thus the double purposes of directly obtaining a fine-grained low-chloride rare earth carbonate product from a hydrochloric acid medium by precipitation and realizing continuous production are achieved. By adopting the production method and device provided by the invention, the fine-grained rare earth carbonate product with the chloride content of less than 50ppm can be directly obtained from the hydrochloric acid medium by using cheap ammonium bicarbonate, the precipitation reaction device has a simple structure, and the continuous production can be realized.

The invention discloses a method for accelerating aging of vinegar with ultrasonic wave, and belongs to the technical field of vinegar aging acceleration. The method comprises the following steps: storing newly brewed vinegar and ethanol which accounts for 0.55-0.85% of the volume of the vinegar in a container, sealing the mount of the container, keeping the temperature inside the container to be 30-40 DEG C, and applying low-frequency high-intensity ultrasonic wave with the frequency of 18-29 KHz and the ultrasonic density of 40-60 W/100mL (the volume ratio of the ultrasonic power to the aging accelerated vinegar) to the vinegar in the container for 60-80 minutes. By adoption of the method, the aging effect of 3-5 years of natural aging can be achieved within 60-80 minutes, the aging time is greatly shortened, and the aging acceleration effect is remarkable.

Provided is a sputtering target containing SiO₂ for a magnetic recording film, wherein a ratio of the peak intensity of cristobalites, which are crystallized SiO₂, to the background intensity (cristobalite peak intensity/background intensity) in an X-ray diffraction is 1.40 or less. The present invention aims to obtain a sputtering target for a magnetic recording film capable of inhibiting the formation of cristobalites in the target which cause the generation of particles during sputtering, and shortening the burn-in time.

A xerogel production method includes: adding, to water glass, a basic silicic acid solution having a sol with a particle size between a particle size of the water glass and a particle size of colloidal silica, to acidify and solate the water glass, and polycondensing the solated water glass at 20° C. to 90° C., to obtain a hydrogel; growing the hydrogel by leaving the hydrogel for a certain time period at a constant temperature; hydrophobizing the hydrogel; and drying the hydrophobized hydrogel.

The invention discloses an inorganic ion modified zeolite composite material and its application. A method for obtaining the composite material comprises the following steps: (a) preparing a solution A containing MgCl2, AlCl3 and FeCl3, a solution B containing NaOH and Na2CO3 and a zeolite suspension; (b) dripping the solution A and the solution B into the isometric zeolite suspension; (c) stirring the mixed solution for 1 h and filtering, and alternately washing and filtering a filtrate until the filtrate contains no Cl<->; and (d) taking a filter cake, drying the filter cake, moving the dried filter cake into a muffle furnace and firing so as to obtain the composite material. The inorganic ion modified zeolite composite material can be applied to sewage treatment so as to achieve the effect of simultaneous phosphorus and nitrogen removal. Thus, NH4<+>-N, NO3<->-N and TP in sewage is effectively removed.

The invention provides a low-temperature fast-dry amino automobile chassis paint and a production method thereof, wherein, the paint consists of B-12 resin, medium pigment carbon black, compound ferrotitanium powder, ultra-fine mica powder, an auxiliary agent, sealed paratoluenesulfonic acid BYK-450 and BR-167 amino resin; B-12 resin is prepared by octadecenoic acid, benzoic acid, pentaerythritol, phthalic anhydride, dimethylol propionic acid, and trimethyl benzene. The automobile chassis paint adopts special B-12 resin synthetic route to lead the polymer chain to have more active functional groups simultaneously to be matched with the blocked paratoluenesulfonic acid, reduces the baking temperature of the existing amino paint from 130 DEG C to 90 DEG C and reduces the curing film-forming time from 1 hour to half an hour. As the paint film has high crosslinking density, compound ferrotitanium powder and squamous anti-rust pigment are matched for use, and the polyaniline is used for improving the anticorrosive potentials, thus leading the salt spray resistance of the paint to achieve 150 hours and improving the protection performance and the coating efficiency.

The invention relates to the field of food processing, in particular relates to a whole grain vegetable sausage and a preparation method thereof, and aims to solve the technical problems that whole grain food cannot be made into convenient food and cannot be popularized for eating because whole grains are rich in starch which is likely to retrograde. Raw materials of the whole grain vegetable sausage comprise soy protein, salad oil, plain white, starch, water, composite gel, sticky rice, sweet corn grit, sesame, red bean sugar natto, green bean sugar natto, sorghum, soybean, oatmeal and the like. The preparation method comprises the following steps of: (a), raw material treatment; (b), addition of diastase; (c), cutting and blending; (d), filling and tying; (e), sterilization; (f), cooling. The invention provides a new method for preparation of a vegetable product. The product tastes good, the starch is unlikely to retrograde, the safety of food shelf life is greatly improved, and the whole grain vegetable sausage is wide in application prospect.

The invention belongs to the field of liquor making methods and particularly relates to a method for accelerating aging of white spirit. The method comprises the steps of inoculating new liquor into an outdoor storage vessel, inoculating old liquor, putting an adsorption column into the vessel, introducing oxygen into the vessel, introducing white spirit which has been aged for a certain period oftime into an indoor storage vessel from the outdoor storage vessel, and controlling the indoor temperature. Compared with a traditional natural aging technology, the method has the advantages that the a natural aging effect costing 9-10 years can be achieved in one year after aging acceleration of the new liquor; the strange smell and foreign flavor of the white spirit which is subjected to agingacceleration are obviously removed, the mouthfeel is mellow, sweet and soft, the aftertaste is long, and the fragrance of the aged liquor is obvious.

The invention discloses a temperature control aging process of white spirit, and relates to the technical field of liquor storage. The process disclosed by the invention is as follows: seasonable temperature change and change of temperature every day in a natural aging process of white spirit is simulated, wherein the simulation period in summer and winter is about 1 month, and every day in the period is divided into a direct sunlight period and a dark storage period; the highest temperature in summer does not exceed 35 DEG C, while the low temperature is 20 DEG C; the low temperature of every day in winter is -10 DEG C while the high temperature is 0 DEG C; the simulation period in summer and winter is 1-2 months, and the white spirit during the period is storage in a dark place and the temperature is maintained at about 20 DEG C. According to the process disclosed by the invention, the aging time of the white spirit is greatly shortened and the production efficiency of the white spirit is improved by simulating the seasonable temperature change and change of temperature every day in the natural aging process of the white spirit. Meanwhile, all indexes of the white spirit aged by the process disclosed by the invention reach the indexes of existing white spirit by the natural aging process, so that the process has the advantages of short aging time, low cost and less loss.