44results about How to "Meet the needs of preparation" patented technology

The invention provides slippery water for shale gas fracturing. The slippery water is prepared from the ingredients in percentage by weight: 0.08-0.3wt% of an emulsion friction reducer, 0.3-1.0wt% of a clay stabilizer, 0.3-1.0wt% of a discharge aiding agent, 0.5-2.0wt% of potassium chloride, 0.05-1.0wt% of a bactericide and the balance of water. Specifically, the emulsion friction reducer is an anionic polyacrylamide copolymer, is prepared through taking acrylamide as a main body structural unit, adding an ionic structural unit and a functional monomer and copolymerizing, and has the viscosity-averaged relative molecular mass of 6-9 millions and the intrinsic viscosity of 1,600-1,860mL / g. According to the slippery water provided by the invention, the used additives are high in dissolution rate and uniform in dispersion, and during field application, the on-line preparation of the slippery water can be realized by using continuous preparing or in an on-line preparing device, so that the technical requirements of a shale gas reservoir on high-displacement (10-20m<3> / min) and high-liquid-volume (10,000-50,000m<3>) fracturing construction are met.

Analysis system (10, PROSAD) for the quantitative chemical analysis of samples (A, A-1, A- 2,....), preferably but not solely in the medical field, comprising detection instrumentation or equipment (30) designed to detect the quantity of the target analytes ( [x], [y], [z] ) present in the various samples (A, A1) to be analysed, which in turn comprises a chromatography system (31), an ion source (32) and a mass spectrometer (33); a data processing system (40, 42, 43, 44) designed to process the quantitative data of the target analytes present in the samples analysed, as detected by the detection equipment (30); and an innovative database (41) containing corrective and control data and coefficients (K, C, K1) to be used to calibrate and correct the instrumental response of the specific detection equipment (30) used to analyse the samples, wherein said corrective and control data and coefficients are determined and acquired by the database at a preliminary stage (51, 52) before the actual analysis of the samples, wherein the sample to be analysed is prepared with a universal dilution solution in order to minimise the corresponding matrix effect, and wherein the data processing system determines the quantitative data of the target analytes present in the samples analysed by processing the quantitative data (Q) detected by the detection equipment, namely the mass spectrometer, taking account of the corrective and control data and coefficients contained in the database. By comparison with the analysis systems currently in use, the system for quantitative analysis of samples according to the invention presents the significant advantage of not requiring, in order to calibrate the detection equipment during the analysis of multiple samples, continuous and expensive use, for each analysis, of commercial standards of the target analytes to be quantitated.

The invention provides a manufacturing method of an aerospace-level vanadium-aluminum alloy. The method comprises the following steps: (1) uniformly mixing vanadium pentoxide, metallic aluminum and a slag former and performing electrode heating smelting in a smelting furnace to obtain a vanadium-aluminum alloy ingot; (2) separating the vanadium-aluminum alloy ingot from furnace slag and afterwards crushing to obtain a vanadium-aluminum alloy block; and (3) mixing the vanadium-aluminum alloy block with the metallic aluminum and afterwards performing vacuum refining to obtain the aerospace-level vanadium-aluminum alloy. According to the method provided by the invention, the state of raw materials is controlled, electrode heating and smelting is adopted, the materials are fed by stages in the vacuum refining process and the angle of a crucible is rotated continuously so that the finally obtained vanadium-aluminum alloy is low in content of impurities, high in purity and uniform and compact in ingredients, and moreover the uniformity is also guaranteed.

The invention discloses an ionizing radiation degradation method for sea cucumber polysaccharide. The method sequentially comprises the following steps of: 1) completely dissolving the sea cucumber polysaccharide into distilled water to obtain an aqueous solution of the sea cucumber polysaccharide; 2) performing ionizing radiation degradation on the aqueous solution of the sea cucumber polysaccharide at normal temperature by adopting 60 Co, wherein the absorbed dose is 2 to 200kGy; and 3) standing and settling or centrifuging the obtained product in the 2) to remove non-degradable settlement and obtain a clear solution, drying the clear solution, and thus obtaining an oligosaccharide with low molecular weight. The product obtained by adopting the method has uniform and centralized molecular weight, the molecular weight distribution index is close to 1, and the product has good uniformity.

The invention discloses a vacuum treatment method for a multi-beam cathode assembly, which comprises the steps of firstly carrying out baking and gas exhausting on the cathode assemble so as to remove water vapor adsorbed to the inner and outer surfaces of a packaging glass tube, then carrying out electrified gas removing on the cathode assembly so as to extract gases and impurities adsorbed on a cathode, carrying out gas removing on an installed anode, applying DC voltage between the cathode and the anode so as to carry out anode gas removing, measuring cathode emission current under different pulse anode high voltages at different powers of a heater assembly, drawing a volt-ampere characteristic curve, and finally carrying out vacuum sealing on the cathode assembly so as to acquire a multi-beam cathode which is low in small in gas discharge amount and stable in emission current. The cathode assembly is high in vacuum treatment quality, an emission surface of the cathode is bright and has no obvious defect, the emission performance of the cathode assembly is good in uniformity, the stability is high, and the preservation period is long, thereby being capable of meeting requirements of travelling wave tube cathode preparation, and having good application prospects.

The invention relates to the technical field of dendrobe culture media preparation equipment, and discloses a potato washing, peeling and cutting integrated machine for preparation of dendrobe culturemedia. The potato washing, peeling and cutting integrated machine for the preparation of the dendrobe culture media comprises a frame body, a motor and a cylinder body, wherein the upper end and thelower end of the cylinder body are open, a mesh partition plate and an inclined partition plate are arranged in the cylinder body and divided the cylinder body into an upper portion, a middle portionand a lower portion, a center cylinder is arranged in the center of the cylinder body, the center cylinder penetrates through the three portions of the cylinder body, a rotating shaft penetrating through the center cylinder is arranged in the center cylinder in a penetrating mode, a brush seat and a water spraying mechanism are arranged at the top of the cylinder body, a material receiving tank iscommunicated with the lower part of the cylinder body through chutes, a longitudinal partition plate is arranged on the part of the center cylinder corresponding to the lower portion of the cylinderbody, and the lower end of the rotating shaft extends out of the lower end of the cylinder body and is connected to a disc cutter. According to the potato washing, peeling and cutting integrated machine for the preparation of the dendrobe culture media, the slicing and shredding efficiency is high, the integrated operation of cleaning, peeling and slices and shreds cutting of potatoes is achieved,the motor can drive to make the peeling and slices and shreds cutting tasks to be completed, and even one person can handle.

The invention provides a growing device and method for growing a wide plate-shaped bismuth germanate crystal according to a descent method. According to the method provided by the invention, a wide plate-shaped and high-quality bismuth germanate inorganic scintillation crystal is prepared according to the steps of: changing the shape of an upper separating brick 7 in the growing device and flexibly adjusting the horizontal width of the growing device and the height of a high-temperature area; designing a platinum crucible and an aluminum oxide leading crucible in huge size; utilizing a long crystal as a seed crystal to horizontally inoculate; and adjusting the uniform horizontal temperature field and the suitable longitudinal temperature gradient.

The invention discloses a method for in-situ growth of a polyaniline array on the surface of a polymer film. According to the method, the surface of a polymer / aminated inorganic nano-oxide composite film is matched with gold nanoparticles, then an aniline monomer is self-assembled in a directed mode, condensation polymerization is conducted through chemical reaction under mild conditions, and the polyaniline array grows in situ on the surface of the polymer film. The array material prepared through the method is anchored on the surface of the polymer film, and can be effectively compounded with ion conductive membranes in electrochemical sensors, fuel batteries and other electrochemical devices. The interface resistance is reduced, ordering membrane electrodes are easy to prepare, and performance of the electrochemical devices is improved.

The invention discloses a reciprocating type medical reagent mixing and preparing apparatus, which comprises a support seat. Support frames are arranged on two sides of the upper end of the support seat. A horizontal rack is arranged on the upper end of the support frame. A fixed cylinder is installed on the middle of the upper end of the horizontal rack. A first embossment is installed on the upper end of the interior of the fixed cylinder. The lower end of the first embossment contacts with a second embossment. An elevating shaft is installed on the middle of the lower end of the second embossment. The lower end of the elevating shaft is provided with an elevating plate. A fixed plate is arranged between the middles of the support frames. A drug guiding cylinder is arranged on the upperend of the fixed plate. A piston is arranged in the drug guiding cylinder. A piston rod is arranged on the middle of the upper end of the piston. A press plate is installed on the middle of the pistonrod. A mixing cavity is arranged in the middle of the lower end of the fixed plate. The lower end of the mixing cavity is connected to a mixing pipe. Due to abovementioned structure, the piston in the drug guiding cylinder can move up and down along the inner wall of the drug guiding cylinder, the requirements of medical reagent preparation can be met, the drug preparation efficiency is improved,the workload for doctors is reduced, and the apparatus can be used to prepare a large amount of medical reagents.

The invention provides a preparation method of iron-silicon soft magnetic alloy powder. The preparation method comprises the following steps: (1) preparing alloy through the following raw materials in percentage by weight: 5.0 to 6.2% of Si, 2.0 to 4.0% of Cr, 0.05 to 0.15% of P, and the balance Fe; (2) feeding the raw materials into a crucible, smelting through a vacuum induction furnace, and cooling molten alloy into thin sheets in a rapid solidification manner; (3) crushing the thin sheets; dipping with liquid nitrogen; grinding through a ring hammer; and sieving to obtain fine alloy particle powder; (4) grinding through a low-speed stirring grinding machine, and shaping the powder; (5) thermally processing the powder under a reduction atmosphere, namely, heating to reach the temperature of 780 to 900 DEG C, and maintaining the temperature for 2 to 5 hours; and (6) sieving to obtain fine particular iron-silicon soft magnetic alloy powder meeting the requirement of a user on particle size. With the adoption of the method, the fine iron-silicon soft magnetic alloy powder which has a good appearance and is shaped like spheres can be prepared; the demand of preparing an integrally-formed inductor can be met.

The invention belongs to the technical field of powder material processing, and particularly relates to a method for removing carbon from nitride powder. According to the method for removing carbon from nitride powder provided by the invention, materials are heated by microwaves, so that carbon powder in the materials absorbs microwaves and is heated and oxidized; meanwhile, aluminum nitride powder keeps a lower temperature due to non-absorption of the microwaves, so that the oxidation process of the surface of the aluminum nitride powder is inhibited; the method can be used for removing carbon from the aluminum nitride powder with the carbon content of 10-30wt% obtained by sintering through a conventional carbothermic reduction method, the obtained aluminum nitride powder is low in oxygencontent and carbon content and better in performance, and the requirement for preparing a high-end heat conduction substrate can be met.

The invention relates to a method for testing mixing uniformity of a lithium battery anode material. The method comprises the steps: conductive carbon and graphite and mixed to obtain a mixed material, the actually measured mass proportion of the conductive carbon at any n positions in the obtained mixed material is tested and calculated, and if difference values between the actually measured massproportion of the conductive carbon at any n positions and the theoretical mass proportion of the conductive carbon added into the raw materials are all within + / -0.1%, it shows that the anode material is mixed evenly. The method provides the guiding direction for improving of a mixing technology, and the efficiency of the preparation process of the anode material is improved advantageously.

The invention provides a lithium cobalt oxide positive electrode material and a preparation method thereof, the preparation method is characterized in that three elements Ba, Ga and Ru with different modification action mechanisms are doped into a lithium cobalt oxide lattice, and the barium element realizes the purpose of reducing a Li < + > diffusion energy barrier by adjusting a geometric structure and an electronic structure of lithium cobalt oxide; the gallium element plays a role in stabilizing the lattice structure of the lithium cobalt oxide through high binding energy with oxygen; the ruthenium element plays a role in inhibiting charge compensation behavior of oxygen in lithium cobalt oxide under high voltage and irreversible phase change under 4.55 V by reducing an energy level overlapping region of a 3d track of cobalt and a 2p track of oxygen, and under the action of three different regulation mechanisms, the capacity, the cycling stability and the rate capability of the lithium cobalt oxide positive electrode material under high voltage are improved, and meanwhile, the lithium cobalt oxide positive electrode material has wider practical applicability in the aspect of electrochemical energy storage due to the good electrochemical charge-discharge behavior of the lithium cobalt oxide positive electrode material.

The invention relates to a preparation method of an odor evaluation reference sample block of an automotive upholstery material. The method comprises the following steps: 1) screening an odor grading team; 2) screening reference sample blocks; 3) grading the reference sample blocks; and 4) mass production of reference sample blocks. According to the method, the accuracy, the stability and the repeatability of the odor grade of the reference sample block are ensured by means of screening of an odor grading team, grading of the reference sample block, stability verification and the like. The smell evaluation reference sample block prepared by the method has good smell representativeness, can better represent the actual smell in the automotive upholstery, and is beneficial for a smell evaluator to give objective smell evaluation. Even for interior trim parts of any smell type, representative actual materials can be found, and reference sample blocks with similar smells can be simulated, so that objective evaluation of smell grades by smell evaluators is facilitated.

A rosin-modified mixed alkylphenol phenolic resin and a preparation method thereof, which is a mixed alkylphenol obtained by reacting p-tert-octylphenol, p-nonylphenol, dodecylphenol and formaldehyde under alkaline conditions The phenolic resin condensate is prepared after rosin modification and polyol esterification, wherein the polyol esterification is carried out step by step with glycerin and trimethylol propane. The phenolic resin prepared by the invention not only has high softening point, good viscoelasticity, better aliphatic hydrocarbon solubility and oil solubility, but also has light color and narrow molecular weight distribution range, and is suitable for the manufacture of special colored inks for high-speed printing.

The invention relates to the technical field of lithium batteries, and provides an ion / electron common conductor film and a preparation method thereof, which successfully synthesize an N-doped LiAlO2 film through reactive sputtering in an N2 atmosphere. Doped N replaces a part of O with a three-coordination structure in a molecule, a cross-linked network structure is formed through induction, and a weak binding force site is provided for transition of Li+. The prepared ion / electron common conductor film has high ionic conductivity and electron conductivity, and can completely replace a conductive additive or reduce the addition amount of different conductive additives in a solid-state battery. Based on the performance requirements of different solid-state batteries, the preparation requirements of the solid-state batteries with requirements on ionic conductivity and electronic conductivity can be met. The invention also relates to an electric vehicle with the solid-state battery.

The invention discloses a porcine pseudorabies virus gE-gI protein and an expression plasmid, preparing method and application thereof, and belongs to the field of the biotechnology. The porcine pseudorabies virus gE-gI protein with the purity of 90% or above can be obtained after expression and purification are conducted on recombinant baculovirus based on an established, screened and codon-optimized porcine pseudorabies virus gE-gI protein expression gene, the spatial conformation of gE protein or gI protein is closer to that of natural protein by means of the gE-gI protein, and the specificity and sensitivity of detecting a gE or gI antibody in porcine serum are higher. A colloidal gold test card or kit prepared from the gE-gI protein is used in cooperation with an immunochromatographyanalyzer, the antibody total titer of the gE-gI in the porcine serum can be rapidly and quantitatively detected, and the gE-gI protein can be used for evaluating the wild virus infection state and guiding the purification of the pseudorabies virus, the elimination of live pigs and the optimization of the immune procedure.

The invention discloses a multi-copy serial peptide antibiotic hPAB preparing method, by molecular bio-operation, constructing hPAB into multi-copy bodies, which is high-efficiency expressed in Escherichia coli by mediation of expression carrier, where the number of the expressed multi-copy bodies is 15-25% of that of the total protein. For an example of tricopy engineering bacterium, the number is 20%, and a purified tricopy body is cracked to be able to obtain 3 active monomers, and thus the preparing efficiency is increased by 200%. The preparing method has the advantages of simple separate-purifying process, low cost, being easy to enlarge, high product purity, strong fungicidal effectiveness, etc and can be widely applied to medicines, retaining food freshness, skin-protective products, and other fields.

The invention discloses a method for in-situ growth of a polyaniline array on the surface of a polymer film. According to the method, the surface of a polymer / aminated inorganic nano-oxide composite film is matched with gold nanoparticles, then an aniline monomer is self-assembled in a directed mode, condensation polymerization is conducted through chemical reaction under mild conditions, and the polyaniline array grows in situ on the surface of the polymer film. The array material prepared through the method is anchored on the surface of the polymer film, and can be effectively compounded with ion conductive membranes in electrochemical sensors, fuel batteries and other electrochemical devices. The interface resistance is reduced, ordering membrane electrodes are easy to prepare, and performance of the electrochemical devices is improved.

The invention belongs to the technical field of manufacturing for shielding an external geomagnetic field, and particularly relates to a cobalt-based amorphous composite material convenient to form. According to the composition of the cobalt-based amorphous composite material, a high-magnetic-conductivity cobalt-based amorphous substance is used as a functional layer for shielding the external magnetic field, and the upper surface and the lower surface of the functional layer are filled with polyimide for protecting the internal cobalt-based amorphoussubstance and facilitating forming. When the material is used, the material can form various magnetic shielding structures through stamping, so that the material can be directly used as a structural body, and an effect of shielding the external magnetic field is achieved. Compared with the prior art, the material has the characteristics of convenience in forming, light weight, certain low-frequency magnetic field shielding effect and the like.

The invention discloses an ionizing radiation degradation method for sea cucumber polysaccharide. The method sequentially comprises the following steps of: 1) completely dissolving the sea cucumber polysaccharide into distilled water to obtain an aqueous solution of the sea cucumber polysaccharide; 2) performing ionizing radiation degradation on the aqueous solution of the sea cucumber polysaccharide at normal temperature by adopting 60 Co, wherein the absorbed dose is 2 to 200kGy; and 3) standing and settling or centrifuging the obtained product in the 2) to remove non-degradable settlement and obtain a clear solution, drying the clear solution, and thus obtaining an oligosaccharide with low molecular weight. The product obtained by adopting the method has uniform and centralized molecular weight, the molecular weight distribution index is close to 1, and the product has good uniformity.

The invention provides a critical air treatment device. The device can generate dry, normal-temperature and purified high-pressure air so as to be used for producing electronic product corrosive liquid, and meanwhile the whole device is small in occupied area. The device comprises a high-pressure fan, an air inlet of the high-pressure fan is connected with a primary filter, and an air outlet of the high-pressure fan is sequentially connected with a first-stage air cooler, a first water distributor, a second-stage air cooler, a second water distributor, an air heater and a high-efficiency filter. The first-stage air cooler comprises a first-stage air cooler shell, the first-stage air cooler shell is sequentially provided with a first air inlet, a first front cone, a first heat exchange section, a first water distribution section, a first rear cone and a first air outlet from front to back, and the first water distribution section is provided with the first water distributor. The second-stage air cooler comprises a second-stage air cooler shell, the second-stage air cooler shell is sequentially provided with a second air inlet, a second front cone, a second heat exchange section, a second water distribution section, a second rear cone and a second air outlet from front to back, and the second water distribution section is provided with the second water distributor.

The invention discloses a preparation method of a shell powder artistic coating material capable of removing formaldehyde. The method comprises the following steps: S1, preparing the following raw materials in parts by weight: 200-400 parts of water, 20-30 parts of a soluble propylene glycol copolymer, 5-10 parts of a soluble dispersant, 2-5 parts of a soluble defoaming agent, 0.5-2 parts of a soluble preservative, 0.5-2 parts of a soluble wetting agent, 100-250 parts of shell powder, 40-80 parts of a soluble vegetable gum, 150-250 parts of soluble titanium dioxide, 2-4 parts of a soluble absolute ethyl alcohol copolymer, 5-25 parts of a soluble sodium stearate copolymer, 2-5 parts of a soluble alkaloid copolymer, 0.5-3 parts of a soluble cellulose copolymer, 20-40 parts of a soluble coloring agent, 1-4 parts of a soluble water reducing agent and 0.5-2 parts of a soluble thickener; and S2, screening the shell powder through a sieve mesh, so that the impurities contained in the shell powder can be removed, the shell powder with large particles can also be screened and removed, and the quality of shell powder raw materials is guaranteed. According to the invention, the shell powder artistic coating material does not contain harmful gases such as formaldehyde and the like, can be combined with a mesh macromolecule film-forming material for use, and has an adsorption effect on indoor harmful gases such as formaldehyde and the like, so that harm to a human body due to harmful gases such as formaldehyde and the like can be avoided.

The invention discloses shell powder art coating preparation equipment capable of removing formaldehyde, shell powder is screened through a screen, impurities contained in the shell powder can be removed, large-particle shell powder can also be screened and removed, and the quality of shell powder raw materials is guaranteed. According to the present invention, the coating does not contain formaldehyde and other harmful gases, and can be combined with the mesh polymer film-forming material to achieve the adsorption effect on the indoor formaldehyde and other harmful gases so as to avoid the harm of the formaldehyde and other harmful gases to the human body.

The invention discloses a method for preparing TW1 type avian infectious bronchitis virus positive serum from SPF chickens. An IBV virus seed of a specific genotype (TW1 type) is used. The method comprises the steps: the IBV CK / CH / XNGD / 140 strain virus seed and an oil emulsion inactivated vaccine thereof are used for conducting basic immunization and enhanced immunization on SPF chickens which are50 days old, blood sampling is conducted, and serum is separated; and the TW1 type IBV positive serum with good specificity and high titer is obtained by carrying out sterile and exogenous virus detection, neutralization titer determination and specificity detection on the serum. The preparation method of the TW1 type IBV positive serum fills the blank that the TW1 type IBV virus seed has no standard positive serum. The SPF chickens are selected as test animals for preparing the serum, the immune procedure in the serum preparation process is optimized, and the serum antibody neutralization titer is improved. The production cost is reduced, and batch preparation of the positive serum is facilitated.

The invention provides a growing device and method for growing a wide plate-shaped bismuth germanate crystal according to a descent method. According to the method provided by the invention, a wide plate-shaped and high-quality bismuth germanate inorganic scintillation crystal is prepared according to the steps of: changing the shape of an upper separating brick 7 in the growing device and flexibly adjusting the horizontal width of the growing device and the height of a high-temperature area; designing a platinum crucible and an aluminum oxide leading crucible in huge size; utilizing a long crystal as a seed crystal to horizontally inoculate; and adjusting the uniform horizontal temperature field and the suitable longitudinal temperature gradient.

The invention provides a critical air treatment device for preparing electronic product corrosive liquid. The critical air treatment device can generate dry, normal-temperature and clean high-pressureair so as to be used for producing the electronic product corrosive liquid. The critical air treatment device comprises a high-pressure fan, an air inlet of the high-pressure fan is connected with aprimary filter, an air outlet of the high-pressure fan is sequentially connected with a first-stage air cooler, a first water distributor, a second-stage air cooler, a second water distributor, an airheater and a high-efficiency filter, a circulating water inlet and a circulating water outlet are formed in the first-stage air cooler, a chilled water inlet and a chilled water outlet are formed inthe second-stage air cooler and are connected to an outlet and an inlet of a water chilling unit correspondingly, and a steam inlet is formed in the air heater.

The invention discloses intelligent traditional Chinese medicine dispensing equipment, which comprises a box body, a storage box and a receiving box, the storage box and the receiving box are arranged in the box body, a plurality of first movable grooves are formed in the box body, a first through cavity is formed below the first movable grooves, the storage box is arranged in the first movable grooves, the receiving box is arranged in the first through cavity, a first through groove and a second through groove are formed in the bottom of the first movable groove, a third through groove corresponding to the first through groove and a fourth through groove corresponding to the second through groove are formed in the bottom of the storage box, a first push plate is arranged on the storage box, and the first push plate is arranged in the fourth through groove in a penetrating mode; and a rotating roller is arranged at the bottom of the first through cavity, a conveying belt is wound around the rotating roller, and the receiving box is arranged on the conveying belt.

The invention discloses a preparation method of a consumable electrode for electroslag remelting, and belongs to the technical field of alloy processing. The preparation method comprises the steps that a steel ingot is loaded into a resistance furnace after being demoulded, firstly, isothermal preheating is carried out, slow heating is carried out, then, rapid cooling is carried out, and slow cooling is carried out. According to the preparation method, the consumable electrode for an electro-slag furnace does not crack during the preparation process, the phenomenon that the electrode chips andcracks during the electroslag remelting process is effectively avoided, production efficiency is improved, and production cost is reduced.