68results about How to "The process is easy to operate" patented technology

The invention relates to a method for preparing a quantum dot photodetection array device based on ink-jet printing technology. The method is characterized by carrying out plasma and chloroform processing on a substrate; then, printing a metal electrode array and a quantum dot array on the substrate through an ink-jet printer with metal electrode ink and quantum dot ink respectively; and finally, carrying out current and voltage test in the dark and any monochromatic light source environment. The method for preparing the quantum dot photodetection array device based on the ink-jet printing technology is simple in preparation technology, and can carry out large-scale production; and the photodetection device adopts quantum dots, so that the photodetection device has a better photosensitive characteristic for any excitation light source.

The present invention is protein feed and its preparation process with potato slag. Protein feed is prepared with waste potato slag from starch production, and through squeezing to dewater, adding certain amount of supplementary material, inoculating certain amount of microbe seed and solid fermentation. The said preparation process is simple, and has high yield, low investment, low power consumption and other advantages. Thus obtained feed product has the fermented product, including microbe, metabolite and substrate utilized fully, and possesses the active components maintained, high amino acid content and high nutritious value.

The invention relates to a metal zipper, the manufacture technology and a sealing and treating machine for the oil on the surface of the metal zipper, belonging to the technical field of daily necessities. A layer of oil is covered on the surface of the metal zipper; the oil comprises double-component epoxy resin varnish, epoxy curing agent and epoxide diluent with the weight ratio of 1:1 to 1.5:2.5 to 3.5. The metal zipper has the functions of rusting prevention, color losing resistance and anti-oxidizing discoloration with the advantages of good rigidity, friction resistance, scratch resistance and chemical corrosion resistance.

The invention provides a hydrolysis method for preparing rutile titanium dioxide. The hydrolysis method comprises the following steps of: adding a crystal seed into titanium liquid under full stirring to form a hydrolysis system, wherein the ratio of the crystal seed to the titanium liquid is 1.0 to 5.0 percent according to the mass ratio of titanium dioxide in the crystal seed to titanium dioxide in the titanium liquid; heating the hydrolysis system to a first boiling point, and stopping heating and stirring after the color of the hydrolysis system is grayed to ensure that particles formed in the hydrolysis system are cured; and starting stirring, and continuously heating the hydrolysis system to ensure that the hydrolysis system is slightly boiled until hydrolysis is finished. The hydrolysis method has the advantages that: the process is easy and convenient to operate, cost is saved, and the like; and the rutile titanium dioxide with stable quality and high pigment performance can be prepared after metatitanic acid obtained through hydrolysis is subjected to subsequent treatment.

The invention discloses a synthesis method of tourmaline. The method comprises the following steps: preparing a homogeneous solution with sodium, magnesium, aluminum, silicon, boron and other elementsat constant temperature, then adding precipitant sodium hydroxide to ensure the solution to reach a certain pH value, obtaining precipitate slurry, and then performing subsequent cleaning, filtrating, drying and calcining processes to prepare tourmaline powder. The method of the invention can be used to obtain the powder containing tourmaline directly, the conditions of the whole preparation method are mild, the method is easy to realize and the cost is low. The precipitate product can be dispersed and calcined to obtain nanometer tourmaline powder which can be conveniently used in fields such as medical treatment and health care, environmental protection, construction and the like.

The invention discloses a middle-large size high speed rare-earth permanent magnet motor rotor structure comprising a rotor core and magnetic poles attached on an outer surface of the rotor core; an outer periphery of the rotor core is provided with a plurality of flanges extending in an axial direction and used for positioning the magnetic poles in a radial direction and the periphery direction; T type slots are arranged between the flanges; each magnetic pole is formed by splicing a plurality of small magnetic steels on the surface of the rotor core in the axial direction and the periphery direction; the spliced magnetic pole is clamped between two adjacent flanges; the magnetic steels are clamped by a wedge nested in the T type slot; two end faces of the rotor core are provided with stop plates used for positioning the magnetic poles in the axial direction. The magnetic poles of the rare-earth permanent magnet motor are fixed in the radial direction and the periphery direction by the flanges arranged on the outer surface of the rotor core and T type slots and wedges between the flanges; the stop plate can fix the magnetic poles in the axial direction; the magnetic pole spliced by small magnetic steels is stable and firm in a whole; the T type slots and wedges are arranged to well solve the middle-large size motor surface mounting type magnetic steel splicing fixation problems.

The invention discloses a flexible plastic quick grouting hole sealing device and method. The device is mainly composed of an umbrella buckle type plugging device, a slotting flexible plastic grouting pipeline and a double-cone pipe connector device. The initial grout pressure in pipes is positively stored in a sealed mode through the differential flow of grout fed into and discharged out of the grouting pipes, and the processes of automatic pushing out, spreading and plugging of a convex angle umbrella buckle are completed. A flexible plastic pipe capable of being coiled is adopted to be inserted into a drill hole at a time, and the primary quick hole sealing operation requirement is met. According to the flexible plastic quick grouting hole sealing device and method, the process of traditional hole sealing operation is simplified, operation is convenient and quick, the cost is low, and the device and the method are novel hole sealing device and method which have wide application and popularization value.

The preparation process of test tube brush shaped silicon carbide includes the following steps: setting silicon inside graphite crucible, distributing polyacrylonitrile-base carbon fiber on the crucible and covering with one graphite crucible in the same size to increase contact between carbon fiber and silicon vapor; setting the crucible without direct contact between the Si powder and carbon fiber inside vacuum high temperature sintering furnace under Ar atmosphere, heating in the temperature raising rate of 10-30deg.c/min to 1450-1650deg.c and maintaining for 3-9 hr; and turning off the power supply after finishing reaction while maintaining circular cooling water until cooling completely to obtain grey silicon carbide.

The invention provides a method for determining isolated soy protein digestibility in vitro. The method includes the following steps: preparing the aqueous solution of isolated soy protein as a sample; using one or more varieties of enzymes to simulate the environment of the human gastrointestinal tract to digest the sample in vitro; stopping the process of digestion, and obtaining a sample to be determined; and determining the in-vitro digestibility of the sample to be determined. The method has the advantages of energy saving, environment-friendliness, safety, high efficiency and the like, and is easy to operate.

The invention discloses non-dissolving antibacterial cellulose acetate and a preparation method and application thereof; the non-dissolving antibacterial cellulose acetate is prepared by substituting hydrogen on part of hydroxyl groups in cellulose acetate by bromoacetyl groups. The preparation method comprises: 1) dissolving the cellulose acetate; 2) dropwise adding bromoacetyl under quick stirring to ensure the temperature of a reaction system is kept at 0-5 DEG C; 3) allowing reacting at 20-35 DEG C under quick stirring; 4) adding deionized water to precipitate out cellulose acetate, and drying to obtain the non-dissolving antibacterial cellulose acetate. An antibacterial reverse osmosis membrane is prepared by dissolving the non-dissolving antibacterial cellulose acetate in a solvent, adding a non-solvent to obtain a casting liquid, scraping, and solidifying. According to the technical scheme provided by the application, bromo-alkyl antibacterial groups are grafted to cellulose acetate to obtain the non-dissolving antibacterial cellulose acetate having good chemical stability and good antibacterial efficiency, and a reverse osmosis membrane made with the non-dissolving antibacterial cellulose acetate has good antibacterial property.

The invention discloses a method for preparing a tungsten trioxide nano material. The method comprises the following steps of: placing a metal tungsten plate in deionized water or distilled water with stirring, irradiating the metal tungsten plate by using laser with wavelength of 532nm or 1,064 nm, the pulse width of between 5 and 15ns, repetition frequency of 1 to 20Hz and single pulse energy of 50 to 120mJ for at least 10 minutes to obtain tungstic acid colloidal solution and then performing aging treatment on the tungstic acid colloidal solution for at least 24 hours or adding acid into the tungstic acid colloidal solution to adjust the pH value of the tungstic acid colloidal solution to be -0.6 to 3.0 to obtain yellow precipitates, or placing the metal tungsten plate in the acid solution with the pH value of -0.6 to 3.0 with stirring, and irradiating the metal tungsten plate by using the laser with the wavelength of 532nm or 1,064 nm, the pulse width of between 5 and 15ns, repetition frequency of 1 to 20Hz and single pulse energy of 50 to 120mJ to obtain the yellow precipitates, then centrifuging and washing the yellow precipitates to obtain the tungstic acid; and placing thetungstic acid at the temperature of 480 to 520 DEG C, and annealing for at least one hour to obtain the tungsten trioxide nano material. The appearance and the size of the product can be effectively adjusted and controlled in a large range.

The invention relates to an efficient recycling device and process for hollow particles in ash residues in an ash storing yard and a storage yard of a power station. The device comprises a crusher, a screw feeder, a mortar stirring tank, a water cement ratio monitoring-feedback-control system, a buffering water tank, a circulating water pump and an ash yard water return pipeline, wherein purifying-grading-upgrading devices are connected to a collection tank and a water return tank. The process comprises the following steps: (1) crushing the ash residues in the ash storing yard and the storage yard of the power station, mixing the ash residues with returned water; (2) carrying out concentration stabilization on high-concentration grout; (3) conveying the high-concentration grout to a distribution-collection tank through a slurry pump and a manual regulating valve; (4) enabling overflow water and bled water in a dewatering bin to automatically flow into a concentrator; (5) enabling a mixture of floating bead particles and water in the collection tank to pass through the purifying-grading-upgrading devices; (6) enabling the overflow water in the concentrator to automatically flow into the buffering water tank; (7) enabling high-concentration residue slurry discharged from the bottoms of the concentrator and the buffering water tank to continuously enter the dewatering bin to be recycled. According to the efficient recycling device and process, the comprehensive utilization level of the ash residues in the storage yard is effectively improved.

The invention relates to a polyester melt delivery pressure control method and a system thereof, in particular to a polyester melt delivery pressure control method and a system thereof in polyester melt direct spinning. The polyester melt pressure control is divided into five control links which are polyester melt discharging pump flow control, final polyester melt filter back pressure control, melt discharging pump speed control, dicing cutter flow control and dicing cutter speed control, the polyester melt discharging pump flow control, the final polyester melt filter back pressure control and the dicing cutter flow control are controlled by a cascade control loop consisting of a main loop and a minor loop, the melt discharging pump speed control is controlled by a melt discharging pump speed PID control module 4 and a melt discharging pump speed PID control module 5 respectively, and the dicing cutter speed control is controlled by a dicing cutter speed PID control module 10 and a dicing cutter speed PID control module 13 respectively. The control method and the system thereof solve the problem of polyester melt delivery pressure fluctuation in the polyester melt direct spinning, and make up the deficiency that the prior art can only perform manual control.

The invention discloses a phenylacetic acid type aryne preparation method, wherein compounds represented by a structural formula I and a structural formula II are used as raw materials, the ortho-alkynylation reaction of the compound represented by the structural formula I is achieved in an organic solvent by adding a ligand and a palladium catalyst in the presence of an alkali and an oxidizing agent so as to obtain phenylacetic acid type aryne represented by a structural formula III. According to the present invention, the introducing of the external guiding group is not required during the synthesis so as to reduce the reaction steps; and the preparation method has advantages of simple and convenient process operation, easily-available raw materials, mild conditions, cost reducing and reduced requirements on equipment, and is suitable for industrial mass production. The formulas I, II and III are defined in the specification.

The invention relates to a processing method of boiled petasites tatewakianus. The processing method comprises the step of adding petasites tatewakianus raw materials into a citric acid solution for sufficiently precooking for 7-12min, wherein the citric acid solution is prepared by adding 520-560g of citric acid into every 1000kg of water, the mass ratio of the petasites tatewakianus raw materials to the water in the citric acid solution is 1:5, the temperature of the citric acid solution is 95-100 DEG C, and the pH value is 3.9-4.3. The canned boiled petasites tatewakianu prepared by using the processing method of the boiled petasites tatewakianu, provided by the invention, has the advantages of petasites tatewakianus raw material blackening phenomenon improvement, petasites tatewakianus taste improvement, low petasites tatewakianus skin viscidity, high toughness as well as simplicity and easiness for peeling.