38results about How to "Good quality" patented technology

The invention relates to a vacuum cleaner shell soft positioning type injection molding technology, and belongs to the technical field of injection molding. According to the vacuum cleaner shell softpositioning type injection molding technology, after a molten material is injected into a soft positioning traceless die, fine bubbles inside the molten material move to the inner wall, close to an upper die body, of a reverse die cavity in a concentrated mode under the suction force guide effect of an ejection channel and a bubble guide layer, so that few bubbles or even no bubbles are gathered on the inner wall, close to a lower die body, of the reverse die cavity, the uneven outer surface phenomenon of a finally obtained vacuum cleaner shell finished product is remarkably reduced because the uneven phenomenon caused by the bubbles is concentrated on the inner surface of the finished product, then the time for grinding the outer surface of the vacuum cleaner shell finished product is effectively saved, and the overall injection molding efficiency is improved. Besides, after the small bubbles are discharged, the phenomenon of holes generated due to the bubbles in the vacuum cleaner shell finished product can also be effectively reduced, and therefore the quality of the vacuum cleaner shell finished product is effectively improved.

The invention relates to the field of composite materials, and provides a biodegradable modified material and a preparation method thereof. The biodegradable modified material comprises the followingraw materials: poly(butylene adipate/terephthalate)(PBAT), polylactic acid(PLA), carboxymethyl starch, chitin, an end-capping reagent, a chain extender, a compatilizer, a plasticizer, a dispersing agent and an anti-aging agent. Fatty alcohol polyoxyethylene ether sodium sulfate is used as the dispersant to repel a large amount of static electricity generated on the surface of each large raw material, so that each large raw material cannot be gathered together, the material stress is relatively uniform, and the prepared modified material is relatively good in quality and has good mechanical property and processing property.

The invention discloses a production method for simultaneously preparing metal manganese and manganese dioxide in an ion exchange membrane electrolytic method. An electrolytic bath is successively divided into a cathode chamber, a septation chamber and an anode chamber by utilizing an anion exchange membrane and a cation exchange membrane, a cathode and an anode as well as a cathode solution and an anode solution are respectively correspondingly arranged in the cathode chamber and the anode chamber, the cathode solution is a manganese sulfate solution comprising additives and a buffering agent, the anode solution is an acidic manganese sulfate solution comprising a surfactant, and the septation chamber is filled with a thin sulfuric acid solution; and when the constant-current electrolysisis performed, the manganese ions reduce metal manganese element on the cathode, the manganese dioxide electric deposition reaction occurs on the cathode, and 1mol/L to 2mol/L of sulfuric acid solution can be obtained in the septation chamber by virtue of electrochemical regeneration manner. By adopting the production method, the electric deposition of manganese on the cathode and the electrolyticgeneration of manganese dioxide on the anode can be simultaneously performed, the current efficiency is high, the environmental pollution is light, and a sulfuric acid byproduct can be produced and can be recycled to the anode solution, so that the reutilization of the resource can be realized; and a metal manganese product and manganese dioxide product are good in quality and high in purity.

The present invention belongs to a hand-held rake-like machine for wolfberry and bush berry plucking, and especially discloses a hand-held rake-like machine for wolfberry plucking. An upper opening of a storage bin body is open; a fruit-raking-device shaft is mounted in the storage bin body by using a bearing; fruit brushing rakes are evenly arranged on the fruit-racking-device shaft radially; fruit brushing rakes are are fruit brushing combs that are evenly arranged and disposed in an axial direction of the fruit-raking-device shaft; a front side of the opening of the storage bin body is connected with a branch guide plate; a front comb guide rail perpendicular to the fruit-racking-device shaft is evenly arranged on the branch guide plate; a rear comb guide rail is transversely disposed on the opening of the storage bin body omidirectionally; the storage bin body is connected to a housing; a geared motor driven by batteries is disposed in the housing; and the geared motor is connected with the fruit-racking-device shaft. The hand-held rake-like machine for wolfberry and bush berry plucking in the present invention replaces manual plucking with mechanized plucking, which results in high plucking efficiency, good quality, a low fruit breakage rate and low labor intensity.

The invention provides a hardware shell rubber jacket coating device. Specifically, a hardware shell sleeved with a rubber jacket is manually placed on carriers of a chain at the inlet of an oven, a chain rotating mechanism works and drives the chain to move so as to bring the hardware shell sleeved with the rubber jacket on the carriers into the oven, the hardware shell sleeved with the rubber jacket is heated to a set temperature in the oven, the rubber sleeve outside the hardware shell shrinks under a heating condition and wraps the hardware shell tightly inward, the chain rotating mechanism works continuously and drives the chain to move, so that a rubber sleeve shaping mechanism and the carriers cooperate to further shape the shrunk rubber jacket of the hardware shell sleeved with therubber jacket on the carriers from the outlet of the oven till the end of shaping, the chain rotating mechanism works continuously and drives the chain movement to bring the shaped rubber coated hardware shell on the carriers to a place below the chain, and then the shaping completed rubber coated hardware shell is taken down manually. The invention also provides a hardware shell rubber jacket coating method. The device and method provided by the invention have the advantages of high production efficiency, low production cost and good quality, and can realize automatic production.

The invention relates to the technical field of colored glaze processing, in particular to a dewaxing casting system and a casting process. The dewaxing casting system comprises a flask molding device, a stirring and pouring device and a smelting furnace centrifugal device, wherein the flask molding device is provided with a molding space, the stirring and pouring device is arranged above the flask molding device, the stirring and pouring device pours a gypsum grinding liquid into the molding space, the smelting furnace centrifugal device is arranged on one side of the flask molding device and the stirring and pouring device, the flask molding device can be fixed to the smelting furnace centrifugal device, and the smelting furnace centrifugal device drives the flask molding device to generate centrifugal motion. The dewaxing casting system has the following beneficial effects that the dewaxing casting process of colored glaze products is simpler and more convenient through the dewaxing casting system, the machining steps of manual labor are reduced, the machining period is shortened, and the colored glaze product is more compact and better in quality.

The invention relates to a method for producing low-melting-point renewable polyester for sheath-core polyester. The low-melting-point renewable polyester is prepared from the following raw materials through degradation and polycondensation: (a) renewable raw materials; (b) glycol; (c) one or more of zinc acetate, potassium acetate, manganese acetate, magnesium acetate, lead acetate, cobalt chloride, tetrabutyl titanate, tetraisopropyl titanate and dibutyltin dilaurate; (d) one or more of m-phthalic acid, adipic acid and sebacic acid; (e) one or more of neopentyl glycol, hexanediol, butanediol and polyethylene glycol; (f) catalysts, namely antimony trioxide and cobalt acetate; and (g) a stabilizer, namely trimethyl phosphate. The low-melting-point renewable polyester produced by the method can be applied to the preparation of sheath-core polyester staple fibers, so that the added value of polyester wastes in preparation of renewable polyester staple fibers is increased, and the prepared sheath-core renewable polyester staple fibers have the characteristics of stable quality and excellent quality. The method can be applied to the production of industries, such as non-woven fabrics, flocking and composite materials.

The present invention provides a rutin extraction method, which comprises: steaming flos sophorae immaturus for 0.9-1 h with a container, cooling, pressing to achieve a crushed state, and placing into an extraction tank; adding borax and sodium metabisulfite according t a weight ratio of 0.8-1.2:4.5-5.5; adding a 20% ethanol solvent, and carrying out stirring extraction for 50-60 min in a water bath with a temperature of 60-70 DEG C; filtering out the flos sophorae immaturus by using gauze, carrying out centrifugation for 6-8 min at a speed of 2800-3200 r/m, and collecting the supernatant; adding a 20% ethanol solvent to the obtained flos sophorae immaturus, carrying out stirring extraction for 50-60 min in a water bath with a temperature of 60-70 DEG C, filtering out the flos sophorae immaturus by using gauze, carrying out centrifugation for 6-8 min at a speed of 2800-3200 r/m, and collecting the supernatant; combining the two filtrates; concentrating the mixed filtrate at a temperature of 85 DEG C, adding ethanol, carrying out cold preservation standing overnight; filtering, taking the filtrate, and carrying out pressure reducing concentration at a temperature of 65-70 DEG C to remove the ethanol; adding concentrated and thick hydrochloric acid and adjusting the PH value to 3.2-5.0, and carrying out cold preservation standing overnight; and weighing and packaging. With the rutin extraction method of the present invention, the technical problems of not high rutin extraction purity, complex process, long extraction period and low efficiency in the prior art are solved.

The invention discloses a cordyceps militaris culture medium which comprises, by weight, 32-38 parts of bean cake, 0.5-1.5 parts of corn flour, 1.5-5 parts of fish meal, 1-3 parts of isomaltulose, 2-5 parts of medical stone, 0.5-2.5 parts of carrot juice, 5-15 parts of silkworm chrysalis powder, 3-6 parts of peptone, 1.6-2.5 parts of triamine citrate, 1.5-2.6 parts of potassium dihydrogen phosphate, 0.5-1.6 parts of magnesium sulfate, 0.5-1.5 parts of sodium dihydrogen phosphate, 3-8 parts of beef extract, 0.5-0.8 part of wheat bran, 0.1-0.5 part of edible salt, 10-15 parts of stone powder and 45-55 parts of water. The cordyceps militaris culture medium is low in preparation ingredient cost and simple and convenient in preparation process, high-quality cordyceps militaris fruiting bodies can be prepared, and cost content and economic benefit are high.

The invention discloses a method of tea tree cultivation in a basement, and aims at providing a cultivation method ensuring that tea leaves have good mouthfeel and are high in yield. The method adopts the technical scheme of stacking tea trees cultivated by plastic woven bags layer by layer in the basement and adopting mist spray and illumination measures. The method comprises the following steps: firstly, laying a bearing frame in the basement, secondly, filling soil in plastic woven bags to cultivate tee trees, and putting earthworms into the plastic woven bags, thirdly, laying the plastic woven bags with the tea trees on the bearing frame layer by layer, fourthly, spraying mist to the basement with the tea trees through a mist making machine, fifthly, performing illumination treatment on the tea trees in the basement, and sixthly, supplementing fertilizer. The technical scheme is convenient to operate, the method is suitable for tea tree growth, and tea leaves cultivated through the method are high in yield and have good quality.

The invention relates to a perovskite layer, a preparation method thereof and a perovskite solar cell. The preparation method comprises the following steps of: providing a matrix and perovskite solution, wherein the perovskite solution has a boiling point smaller than or equal to 85 DEG C; and coating the perovskite solution on the matrix by utilizing a roll-to-roll process, and carrying out drying and annealing to obtain the perovskite layer. According to the preparation method of the perovskite layer, the perovskite solution with a low boiling point is coated on the matrix, so that perovskite crystals can grow rapidly, a film can be rapidly formed in a relatively short time, the process is simple, the procedures are relatively few, and the formed perovskite layer is smooth and uniform inthin layer and relatively few in holes. The preparation method is capable of not only improving the quality of the perovskite layer, but also reducing the equipment cost for producing large-area perovskite solar cell, and is suitable for preparing high-efficiency large-area perovskite solar cell flexible assemblies.

The invention discloses titanium alloy for a damping bicycle frame. The titanium alloy is mainly composed of 0.6%-3.0% of cobalt, 0.5%-2.0% of nickel, 1%-2% of iron, 0.5%-0.7% of silicon, 0.3%-0.4% of molybdenum, 0.2%-0.3% of aluminum, and the balance titanium and inevitable impurities. The invention further discloses a preparation method of the titanium alloy for the damping bicycle frame. According to the titanium alloy for the damping bicycle frame and the preparation method thereof, cobalt-nickel alloy is selected to be used as a smelting material, and the cobalt-nickel alloy has a damping function; moreover, other alloy and the cobalt-nickel alloy are smelted together, so that the comprehensive properties such as the strength and the plasticity are better; the electric bicycle frame is made of the titanium alloy, so that the corrosion resistance is high, deformation is not prone to happen, the bearing capacity is high, the anti-fatigue ability is high, and the damping effect is good. A phosphate removing agent and a desulfurizing agent are used for removing the impurities in the titanium alloy in the preparation method, hence, the quality of the bicycle frame which is made of the titanium alloy is made better, and the damping performance is more excellent.

The invention discloses a method for extracting gynostemma pentaphylla seed oil through ultrasonic wave. The method comprises the following steps: peeling gynostemma pentaphylla fruit, picking seeds and then cleaning the seeds, drying, grinding and then filtering by a screen with 65 meshes, weighing powder, taking petroleum ether with the boiling range from 30 to 60 DEG C as extracting solution, and fully shaking up and then extracting under the ultrasonic condition. The method has the advantages that the extracting time is short, the solvent dosage is small, the extracting efficiency is high, the solvent recovering rate is high, the quality of the seed oil is good, the cost is low, and the investment is small.

The invention relates to a method for extracting buddleia yellow and belongs to the technical field of pigment extraction. The method comprises the following steps: selecting raw materials, pretreating, pounding to pieces, placing in a vessel, precooling, sterilizing, leaching with ethyl alcohol, concentrating and drying leach liquor to obtain the buddleia yellow. The method for extracting buddleia yellow provided by the invention has the benefits as follows: the technological processes are simple and concise, the method is reasonable, no pollution is caused in the whole process, the efficiency is high, the extraction cost is low, the extracted buddleia yellow is high in purity, complete in extraction process, pollution-free, suitable for industrial production, and at the same time can serve as food coloring to be directly eaten, is high in nutritional value, good in health-care effect, high in safety, non-toxic, and better in quality.

Method and system for providing a computer implemented process of performing design for testability analysis and synthesis in an integrated circuit design includes partitioning each logic block in an integrated circuit design based on one or more boundaries of multi-cycle initial setup sequence, excluding the one or more logic blocks with multi-cycle initial setup sequence from valid candidate blocks, selecting a constraint setting set, extracting a subset of constraint settings from the selected constraint setting set, applying the extracted subset of constraint settings to the integrated circuit design, performing design for testability analysis and synthesis on the valid candidate blocks, performing scan cell replacement. Scan cell replacement may include performing class selection from a cell library and gate-level netlist based on affinity between cells, determining a target characterization, such as timing, power, area, for example, for the scan cell replacement, and replacing one or more cells with a corresponding one or more scan cells having the closest target characteristics.

A process for producing zinc compound by an acid and alkali combination method includes steps of (1) dissolving a zinc-based material in an acid solution, filtering and purifying to obtain an acid zinc-based solution for reservation, (2) taking the other zinc-base material and dissolving the same in an alkali solution, filtering and purifying to obtain an alkali zinc-based solution for reservation, and (3) mixing the acid zinc-based solution and the alkali zinc-based solution according to the proportion of 1:1 to react to obtain a liquid, filtering the liquid to obtain a filter cake, washing the filter cake by two or three times with water, drying the filter cake at the temperature of 130-140 DEG C for 0.8-1.2 hours to obtain zinc hydroxide so as to obtain products according to production requirements. The process is simple and effective and needs a small quantity of acid and alkali solutions relatively; by the process, category range of products is wide and quality thereof is good; further, the process for producing zinc oxide at low temperature needs low energy consumption as compared with conventional methods so that production cost is lowered and production profit is high.

The invention discloses application of seed coats/embryonic bodies and rhizomes obtained after harvest of sprout seedling vegetable to cultivation of pholiota adiposa. The application is characterized by comprising the step of mixing matrix powder of the original seed coats/embryonic bodies and the rhizomes, which are obtained after the harvest of the sprout seedling vegetable, with cottonseed hulls and bagasse, or with corncobs, bran, gypsum powder and lime powder, so as to obtain a culture compost for the cultivation of the pholiota adiposa. The application has the advantages the novel raw culture compost for the cultivation of the pholiota adiposa is provided, waste utilization and waste recycling are realized, and high yield and high quality of the pholiota adiposa can be realized.

The invention relates to a multi-view video reconstruction method based on GAN latent codes, which can be used in the fields of virtual view synthesis, multi-view video compression post-processing, virtual reality and the like, and has wide application value. According to the method, the lost mapping relation between adjacent viewpoints is compensated through the generation capability of the GAN, and the balance between the reconstruction quality and the bit rate of the latent code is considered in the training process of the extraction network. At an encoder end, a convolutional network is used to extract latent codes of the GAN as auxiliary information, and a code rate and reconstruction quality joint cost function of the model is constructed. At the decoder end, a generator of the GAN combines adjacent viewpoints with latent codes to reconstruct an intermediate view. The GAN latent code can be used as auxiliary information of a multi-view video so as to realize better rate distortion performance.

The invention discloses an aluminum drying device, relates to the field of aluminum machining, and solves the technical problem the aluminum is dried unevenly in the prior art. The aluminum drying device comprises a box and a conveying belt connected in the box in a penetrating manner. A blower is connected to the box. A heating pipe is disposed in the box which comprises an outer box and an inner box. The air inlet of the blower is formed in the outer box. A plurality of air vents are formed in the side wall of the inner box. The aluminum drying device is used for drying the aluminum sprayed with paint.

The invention discloses a planting method for reducing content of nitrate in spinach. The planting method comprises the following steps: a, selecting a land, and applying fertilizers; b, soaking seeds, and accelerating germination; c, sowing the seeds; d, spraying a calcium chloride solution after sprouting; e, performing top dressing; f, harvesting. The planting method disclosed by the invention is adopted to plant spinach. The content of nitrate in the spinach planted by using the method disclosed by the invention is kept being 880mg/kg or below.

A surface plasmon enhanced light-emitting diode includes, from bottom to top, a substrate, an n-type semiconductor layer, a light-emitting layer, a p-type semiconductor layer, and a plurality of metal filler elements. The p-type semiconductor layer includes upper and lower surfaces, and the upper surface is recessed downward to form a plurality of spaced apart recesses for receiving the metal filler elements, respectively.

The transmission system is backward compatible with a former transmission system (DVB-T), enabling a receiver of the former system to receive signals transmitted by a transmitter of the new transmission system. A new modulation is used to transmit additional information bits corresponding to a new service. The new modulation is specified by a combination of the former modulation with a new-built over modulation.

The invention discloses a rapid extraction method of citrus DNA, heat obtained by collision and friction between two steel balls is directly used for heating plant tissue homogenate to replace a water bath process at 65 DEG C for 45 minutes, so that the quality is better, the rapid extraction method of citrus DNA provided by the invention is less in time consumption, and citrus genome DNA with higher concentration and better purity is extracted; and the method has high practicability in scientific research practice.

Provided are a method for observing protein crystal, wherein the growth process of the protein crystals is nondestructively and three-dimensionally monitored on a real-time basis and the growth of the crystals is controlled at a high accuracy to thereby enable the formation of single crystals having good qualities, which comprises observing the protein crystals, said protein crystals having been produced by a crystallization method using a gel, by an OCT measurement using light emitted from an ultrawideband light source;

a method for observing protein crystals wherein the ultrawideband light source is an ultrawideband supercontinuum light source;

a method for observing protein crystals wherein the center wavelength of the light emitted from the ultrawideband supercontinuum light source is a 0.8 μm band; and

a method for observing protein crystals wherein the monitoring of the protein crystals is a monitoring by an in situ measurement.

The invention discloses a method for recovering and purifying an ethanol-ethyl acetate-piperazine waste solvent. The method comprises the following steps: S1, taking a waste solvent ethanol-ethyl acetate-piperazine, rectifying, separating ethanol and ethyl acetate, extracting piperazine from a tower kettle, and obtaining anhydrous piperazine in the purity greater than or equal to 99.5%(wt); S2, adding a certain amount of water into the ethanol and ethyl acetate obtained by rectification, washing with water to obtain an organic phase consisting of ethyl acetate and a small amount of water on the upper layer, and obtaining a water phase consisting of ethanol and water on the lower layer; and S3, carrying out azeotropic distillation on the organic phase obtained by water washing to obtain an azeotropic mixture of ethyl acetate and water at the tower top, and carrying out layering and liquid separation. According to the method, ethanol, ethyl acetate and piperazine are separated and water and other impurities are removed through rectification separation, extraction separation, azeotropic rectification separation and rectification coupling membrane separation and dehydration separation, so that purification, recovery and circulation of a solvent are achieved, generation of a waste solvent is reduced, and the production cost is reduced.

The invention discloses a plastic coil machine and a method for producing plastic coil dry wall screws. The plastic coil machine comprises a support, a first rolling wheel, a retraction frame, a conveying mechanism, a feed mechanism and a cutoff mechanism. The outer surface of the first rolling wheel is provided with a plurality of clamping grooves matched with the dry wall screws. The retractionframe comprises two supporting plates arranged vertically, a supporting column and an arc-shaped baffle. A conveying device comprises a driving belt pulley, a driven belt pulley, a conveyor belt and acylinder, wherein the driving belt pulley and the driven belt pulley are arranged on a rack; the conveyor belt is wound around the driving belt pulley and the driven belt pulley; the cylinder is arranged on the rack; a push plate is arranged at the free end of a piston rod of the cylinder; the push plate is driven by the cylinder to do reciprocating motion in the direction perpendicular to the driving direction of the conveyor belt; the driving belt pulley is driven to rotate by a conveying driving motor arranged on the rack. The feed mechanism comprises a vibrating trough and an inclined conveying trough. The bottom end of the inclined conveying trough is located over the first rolling wheel. The plastic coil machine has the beneficial effects of high production efficiency and little manpower input.

The invention discloses a method for manufacturing a low-offset flat band voltage SiC MOS capacitor, which mainly solves the problem that the trap intensity of a SiC/SiO2 interface is too high. The method comprises the following manufacturing processes: cleaning an N-SiC epitaxy material; after injecting N<+> into a SiC epitaxy layer by ion injection, injecting Al<-> into the epitaxy layer; oxidizing a layer of SiO2 on the epitaxy layer after the ion injection in the mode of dry-oxygen; sequentially finishing the annealing in Ar gas environment, the wet-oxygen oxidation annealing in wet-oxygen environment and the cold treatment in the Ar gas environment of an oxidized sample wafer; depositing a layer of SiO2 on the sample wafer after the cold treatment by chemical vapor deposition and first annealing the sample wafer in the Ar gas environment; and manufacturing an electrode by vacuum sputtering of Al and carrying out second annealing in the Ar gas environment so as to finish manufacturing the whole capacitor. The invention has the advantages of accurate control of N<+>\Al<-> doses, low trap intensity of the SiC/SiO2 interface, small flat band voltage offset of the SiC MOS capacitor and simple achieving process and can be used for improving the characteristics of the SiC/SiO2 interface of an N type SiC MOS device.

The invention discloses a sealing device. The sealing device is used for sealing a detected piece so that air leakage detection can be conducted. The sealing device comprises an installation seat anda sealing assembly, the installation seat is internally provided with a first through hole, and the sealing assembly can be installed in the installation seat and comprises a body, sealing rings and afastening ring; the body is internally provided with a containing groove and a second through hole, and the containing groove and the second through hole communicate with the first through hole; thetwo ends of the body are provided with the sealing rings; and the peripheral wall of the body is provided with the fastening ring. The body, the sealing rings and the fastening ring are of an integrally formed structure. An O-shaped ring of the sealing device is not disengaged and good in applicability, and the good sealing effect can be achieved through small pressure.

The invention discloses coarse grain salty egg-yolk puff, which is prepared from the following raw materials in parts by weight: 5-50 parts of sorghum flour and high-gluten flour mixed powder, 5-25 parts of soybean flour, 1-20 parts of peanut oil, 2-10 parts of xylitol, 20-50 parts of lard, 30-160 parts of a stuffing and 1-20 parts of water. The invention further provides a preparation method of the coarse grain salty egg-yolk puff. The preparation method mainly comprises the following technological processes: weighing raw materials, preparing dough, wrapping lard, pressing dough, opening thepuff, injecting stuffing, forming, brushing with an egg liquid, baking, cooling, and packaging. According to the invention, the raw materials are simple and easy to obtain; the prepared coarse grain salty egg-yolk puff contains multiple layers of the clearly-layered stuffing, wherein the outer wrapper is compact and crisp, the stuffing is soft, tender and not sweet, and the crispy cake is pure intaste and fragrant but not greasy; and by using semi-mechanized production, the working intensity is reduced, the production efficiency is improved, and the quality of the coarse grain salty egg-yolkpuff is easy to keep consistent.