22results about How to "Process steps are clear" patented technology

The invention relates to the technical field of food processing, in particular to an auricularia polytricha lotus root fresh and crisp sauce and a preparation method thereof.The auricularia polytricha lotus root fresh and crisp sauce is prepared from, by mass, auricularia polytricha, auricularia polytricha, soybeans and other ingredients. Aiming at the fixed high-proportion optimization pretreatment process of the auricularia polytricha, the lotus roots and the soybeans, the problems of non-uniform taste, residual beany flavor and the like under the condition of high addition amount are solved; deep fusion of food materials and seasoning is achieved through the segmented stir-frying process, the mellow flavor is fully stimulated through independent stir-frying of the soybeans, and sufficient base taste is provided for the formula of the agaric and the lotus roots; mild pasteurization gives consideration to sterilization effect and quality retention, the crispness retention rate of food materials is increased, and the flavor retention rate is increased; the method is clear in process steps, easy in condition control and suitable for industrial mass production.

The application discloses an environmentally-friendly soft type yoga mat special silk-screen printing ink and a preparation method thereof, and belongs to the technical field of silk-screen printing inks. The ink comprises the following components in parts by weight: 30-50 parts of main body resin, 5-15 parts of environmentally-friendly pigment, 25-45 parts of environmentally-friendly composite solvent, 1-5 parts of adhesion promoter, 0.5-2 parts of rheological additive, 0.5-2 parts of scratch-resistant additive, and 2-8 parts of environmentally-friendly non-ortho phenyl plasticizer. The ink is extremely environmentally-friendly, meets international export standards, and is free of phthalate plasticizers, benzophenone solvents and heavy metal pigments in the whole process. Instead, the ink uses citric acid ester non-ortho phenyl plasticizers, benzene-free and ketone-free composite solvents and heavy metal-free organic pigments. The VOC content is far lower than the national limit value, the irritating odor is eliminated, and phthalate controlled substances are not detected. The ink meets the EU REACH regulation appendix XVII 51 / 52 and the EN71-3 toy safety standard, and completely solves the problem of limited export of traditional inks.

This invention belongs to the field of food technology and provides a corn peptide functional food raw material and its preparation method. It constructs a composite powder by enriching corn peptide intermediates, corn peptide-maltodextrin assembly intermediates, and maltodextrin. Different molecular weight fractions are combined through two-stage enzymatic hydrolysis, fractionation using 5kDa and 1kDa ultrafiltration membranes, high-shear dispersion, homogenization, and spray drying. The resulting raw material has suitable D50, bulk density, total peptide content, moisture content, and water activity. The average particle size of the composite dispersion is stable and shows no visible stratification after 24 hours of standing. The composite powder passes through an 80-mesh sieve. This invention solves the problem of simultaneously and stably controlling the corn peptide raw material dispersion system and the composite powder, and can be used for the preparation of functional food raw materials.

The application discloses a kind of for sewage treatment ultra-efficient shallow air floaters and processing technology, its ultra-efficient shallow air floater includes pool body, cloth liquid unit, mounting bracket and drive unit, pool body inserts with sewage pipe and inlet pipe, sewage pipe is connected with sewage pipe, inlet pipe is connected with Venturi jet and is connected with its water inlet, the air pipe and the dissolved air water pipe are connected with the air inlet and the water outlet of Venturi jet respectively;Cloth liquid unit includes mixing pipe and cloth liquid pipe, mixing pipe is connected with sewage pipe, dissolved air water pipe, cloth liquid pipe is connected on mixing pipe, mounting bracket is arranged on sewage pipe, and mounting bracket is provided with scraper;Drive unit drives mounting bracket to rotate;Pool body is equipped with scum cylinder, scum cylinder is equipped with scum box, the height of front side box wall of scum box is greater than rear side box wall, mounting bracket is equipped with bending assembly for bending scraper, and the scraper after bending restores original shape after passing through low side box wall of scum box.The ultra-efficient shallow air floater provided by the application can improve the efficiency of the scraper to remove scum.

The invention relates to the technical field of photovoltaic supports, in particular to a sloping roof photovoltaic support and a construction method thereof, and the photovoltaic support comprises a plurality of back pull assemblies, a plurality of ground beam assemblies and a plurality of photovoltaic mounting base assemblies. The back pull assembly comprises a rear wall inclined strut, a rear wall transverse strut and a back pull, one end of the rear wall inclined strut is arranged on the rear wall of the house, the other end of the rear wall inclined strut is arranged on the back pull, one end of the rear wall transverse strut is arranged on the rear wall of the house, and the other end of the rear wall transverse strut is arranged on the back pull; the ground beam assembly comprises a front wall inclined strut, a front wall transverse strut and a ground beam, one end of the front wall inclined strut is arranged on the front wall of the house, the other end of the front wall inclined strut is arranged on the ground beam, and one end of the front wall transverse strut is arranged on the front wall of the house. After being installed, the support is not connected with the roof, and an original waterproof layer or waterproof tiles of the roof are prevented from being damaged; by arranging the positioning assembly, positioning installation of the back pull and the ground beam is conveniently achieved, and the construction efficiency is improved.

A method for one-step preparation of methylamine by hydrogenation amination of carbon dioxide, belonging to the field of catalysis. In a fixed-bed reactor, carbon dioxide, hydrogen, and ammonia are reacted. The catalyst comprises a microporous or mesoporous silica support, and the active component includes indium, zirconium, and at least one metal promoter selected from nickel, copper, palladium, rhodium, and platinum; the In 3d... 5 / 2 The binding energy is 444.0~444.7 eV, which is more than 0.2 eV lower than that of pure indium oxide; the single-pass conversion rate of carbon dioxide is not less than 50%, the total selectivity of methylamine is not less than 80%, and the selectivity of the byproduct carbon monoxide is not higher than 20%. This invention constructs a unique In-Zr-M active center, with In, Zr, and M uniformly co-distributed at the nanoscale. By adjusting the NH3 / CO2 ratio, the ratio of dimethylamine to trimethylamine can be controlled. The catalyst of this invention exhibits excellent performance and good stability, and has broad application prospects in the fields of carbon dioxide resource utilization and green synthesis of methylamine.

This invention provides a silver-based terminal coating with high migration resistance, relating to the field of terminal coating preparation technology. The coating, from the inside out, comprises a copper alloy substrate, a nickel underlayer, a composite silver layer, and a gold protective layer. The nickel underlayer is formed by electroplating with a nickel plating solution containing nickel sulfamate, nickel chloride, and boric acid. Through the synergistic effect of nanoparticle surface modification treatment, pulse co-deposition process, and interface optimization technology, the nanoparticles are uniformly dispersed in the composite silver layer and form a stable bond with the coating. Combined with the protective system formed by the dual-pulse gold plating process, the migration path of silver ions is blocked from the source, ensuring that the terminal has no short-circuit risk under long-term use and harsh environments, and significantly improving the product's service life and reliability.

The invention discloses a preparation method and application of a zinc monatomic doped oxygen material, and relates to the technical field of catalytic materials.The preparation method comprises the steps that zinc salt and 2-methylimidazole react in an organic solvent, and a zeolite imidazate framework material is obtained through ultrasonic treatment, self-assembly, centrifugal washing and drying; performing primary pyrolysis on the framework material in an inert atmosphere, and performing acid pickling, washing and drying to obtain a zinc monatomic material; and performing alkali treatment on the zinc monatomic material and an alkaline substance, performing secondary pyrolysis in an inert atmosphere after drying, and performing acid pickling, washing and drying again to obtain the zinc monatomic doped oxygen material. The zinc monatomic doped oxygen material comprises a carbon carrier and zinc monatomic active sites dispersed on the carbon carrier. The material can be used for electrocatalytic preparation of hydrogen peroxide in a two-electron oxygen reduction reaction, and has a good application prospect.

The present invention relates to the technical field of skin care products, and discloses an acne skin relieving gel containing swallow and folium artemisiae argyi components, the acne skin relieving gel comprises the following components by weight: 2-3% of an oat kernel extract; 2%-3% of a folium artemisiae argyi extract; 5%-8% of a humectant; 0.5%-0.8% of an antioxidant; 0.1% to 0.2% of matrine; 4.65% to 7.4% of a skin conditioning agent; according to the invention, the oat kernels and the folium artemisiae argyi extract are compounded, so that the anti-allergy and anti-oxidation performance is synergistically improved, and redness, stabbing pain and inflammation are effectively relieved. The composite moisturizing system is combined with natural components, so that double effects of water absorption and water locking are realized, and dryness and roughness are improved permanently. All the components are natural and mild, do not contain artificial essence, pigment or preservative, and are suitable for sensitive skin. The preparation process is simple and controllable, high in batch stability and suitable for large-scale production.

The invention relates to the technical field of mineral extraction, particularly discloses a method for efficiently extracting barite single mineral in black mudstone rich in organic matters, and solves the technical problems that micron-sized barite in black mudstone cannot be efficiently extracted in the prior art, lattice destruction / isotope fractionation of barite is easily caused in the extraction process, the purity and the recovery rate are low and the like. The purity of the extracted barite single mineral is larger than or equal to 99%, the recovery rate of fine-fraction barite is larger than or equal to 90%, crystal lattices are complete and free of damage, isotope fractionation and component change are avoided, and the high-precision geochemical test requirement can be met; meanwhile, the method is suitable for various sedimentary rocks such as marine / continental black mudstone, shale and siliceous mudstone, and the applicability is wide.

The invention discloses reactive dye ink for digital printing and a preparation method, and particularly relates to the field of fine chemical engineering and textile printing and dyeing. Comprising the following components in percentage by weight: 8wt%-25wt% of reactive dye, 2wt%-8wt% of a polymeric dispersant, 0.5 wt%-3wt% of an inorganic dispersant, 1wt%-4wt% of an organic-inorganic composite complexing agent, 0.5 wt%-5wt% of a viscosity modifier, 0.1 wt%-2wt% of a surfactant, 0.3 wt%-1.5 wt% of a pH buffering agent, 0.05 wt%-0.8 wt% of a preservative and the balance of deionized water. Through a dual stabilization mechanism of macromolecular steric hindrance and a nanoparticle rigid barrier and deep removal of destructive metal ions by a composite complexing agent, the particle size growth rate of the ink after accelerated aging for 30 days at 40 DEG C is lower than 5%, the ink can be stably stored for more than 12 months without sedimentation at normal temperature, and by combining a pure ink system, the stability of the ink is improved. And the fixation rate on the cotton fabric exceeds 85%, the color fastness to washing is greater than or equal to grade 4, the color fastness to dry / wet rubbing is greater than or equal to grade 4, and the color fastness to light is greater than or equal to grade 5.

The utility model provides a continuous annealing furnace, include: muffle furnace, the utility model provides a continuous annealeing furnace, through the reasonable intercalation of baking furnace and purging process, operation saves time, significantly improves equipment utilization, adapts the efficient scheduling demand of centralized production, strictly controls the oxygen content of entrance area, dew point and supercooling section detection data, combines " oxygen content is accurate to start heating when <=7000ppm " logic, ensures that muffle furnace, cooling section etc. Core area is always in argon protection atmosphere, effectively avoids material oxidation, improves the surface quality stability of titanium roll etc. Precise material, through the speed of cooling fan, furnace pressure regulating valve opening and argon flow of grading regulation, reduces argon waste while guaranteeing purging effect, matches heating rate segmented control, avoids the thermal stress of furnace body because of temperature abrupt change, prolongs the service life of equipment, process step is clear, and key parameter quantization is controllable, reduces the dependence on the experience of operating personnel.

This invention discloses a reconstituted tobacco leaf with the appearance of tobacco fibers and its preparation method. The reconstituted tobacco leaf comprises the following components by weight: 20-40 parts tobacco stems, 30-50 parts added fibers, 40-50 parts tobacco powder, and 0.4-2 parts colloid. The preparation method involves precise weighing of raw materials, separate pulping of tobacco stems, mixed pulping of tobacco powder and added fibers, compounding of multiple pulps, followed by pulping, dehydration, coating, drying, and rolling to obtain the finished product. The reconstituted tobacco leaf exhibits a clear appearance of natural tobacco fibers on its surface. The raw material ratio is highly adaptable, and the parameters of each step of the preparation process are highly controllable. It effectively preserves the original appearance and structure of tobacco fibers, giving the product both excellent physical properties and sensory quality. Furthermore, the process flow is adapted to the needs of industrial production, significantly improving the added value and market application value of paper-based reconstituted tobacco leaves.

This invention relates to the field of industrial wastewater treatment technology, and specifically discloses a method for the synergistic treatment of wastewater containing hexavalent chromium and alkaline slag wastewater. It includes: 1. Injecting the hexavalent chromium-containing wastewater into a reaction vessel and stirring; slowly adding the alkaline slag wastewater in small amounts multiple times through a pipeline extending to the bottom of the solution, controlling the addition time to 1 minute each time with 5-minute intervals, ensuring that the hexavalent chromium content in the mixed solution is below 0.5 mg / L; 2. Adding ferric chloride solution during the reaction to maintain the pH at 2-3; after the reaction is complete, adjusting the pH to 8-9 with the alkaline slag wastewater; 3. After cooling, adding PAC solution in proportion; after the reaction, pressing and filtering; incinerating or landfilling the filter cake; and desalinizing the filtrate; 4. Desalinizing through triple-effect evaporation; rigidly landfilling the waste salt; and biochemically treating the condensate. This invention achieves "waste-to-waste treatment," reduces treatment costs, inhibits hydrogen sulfide spillage to ensure safety, achieves treatment standards, has a simple process that is easy to industrialize and promote, and possesses good environmental and social benefits.

The application provides a solute cluster reinforced aluminum alloy material and a preparation method and application thereof, and belongs to the technical field of aluminum alloy materials. The solute cluster reinforced aluminum alloy material comprises an aluminum matrix and nanometer clusters uniformly and dispersedly distributed in the aluminum matrix. The average size of the nanometer clusters is less than or equal to 5nm, the number density of the nanometer clusters is greater than or equal to 3.27*10 25 m ‑3 ; and the solute cluster reinforced aluminum alloy material is an Al-Zn-Mg-Cu alloy.

The invention discloses a near-distance nickel oxide cluster and nickel monatomic synergistic two-electron oxygen reduction electrocatalyst growing on a carbon substrate and a preparation method thereof, the preparation method comprises the following steps: carrying out oxidation treatment on the carbon substrate to obtain the carbon substrate with the surface rich in oxygen functional groups; dispersing the carbon substrate in a solvent to form a carbon-containing solution, and introducing a nickel salt metal precursor into the carbon-containing solution; under the action of a reducing agent, enabling the nickel precursor to form a nickel oxide cluster and nickel monatomic coexisting structure on the surface of the carbon substrate; and separating and drying to obtain the electrocatalyst. The electrocatalyst comprises a carbon substrate as well as nickel oxide clusters and nickel monoatoms which are distributed on the surface of the carbon substrate. The electrocatalyst can be applied to electrocatalytic preparation of hydrogen peroxide in a two-electron oxygen reduction reaction.

This invention discloses a fully automated tin plating equipment for automotive components, belonging to the field of tin plating processing technology. It solves the problem of low coordination efficiency between the processing mechanisms in existing fully automated tin plating equipment for automotive components. The invention includes a frame, on which a material tray loading assembly is mounted. Next to the material tray loading assembly are a material suction and conveying assembly and a product positioning mechanism. Next to the product positioning mechanism is a tin plating assembly. A tin furnace module is mounted on the frame below the tin plating assembly. An unloading assembly is mounted between the tin plating assemblies next to the tin furnace module. A fixture tray positioning mechanism is mounted on the frame below the unloading assembly, and a material tray conveying mechanism is mounted on the unloading assembly. This invention is used for fully automated tin plating processing of automotive components, featuring a high degree of automation, smooth process, no interference or obstruction between mechanisms, and high production efficiency.

The invention relates to the technical field of rotating target materials, in particular to a centrifugal binding method of a large-size ITO rotating target material, which comprises the following steps: step 1, pretreatment of a contact surface: degreasing and cleaning the inner wall of the ITO target material and the outer surface of a metal back tube, and then respectively sputtering nickel or copper for metallization treatment, with the thickness of a sputtering layer being 0.5-2 microns; step 2, assembling and positioning: coaxially assembling to form a 0.1-0.3 mm uniform binding gap, and mounting a sealing check ring; 3, centrifugal binding is conducted, specifically, rotation is conducted at the rotating speed of 800-1500 r / min, high-purity indium solder at the temperature of 180-200 DEG C is injected, and inert gas protection is conducted; and 4, cooling molding: cooling to room temperature at 5-10 DEG C / min. Uniform filling of the welding flux is achieved through centrifugal force, the binding rate reaches 99% or above, the binding strength is larger than or equal to 25 MPa, the problems that a large-size target material is large in binding defect number and low in strength are effectively solved, and the method is suitable for industrial production.

This invention provides a method for preparing LaBi(00l) single-crystal thin films using molecular beam epitaxy (MBE), belonging to the field of thin film preparation technology. The method involves heating a lanthanum (La) and bismuth (Bi) evaporation source to a certain temperature, then co-depositing the La and Bi molecular beams onto a Si(001) substrate heated to a certain temperature, thereby forming a LaBi thin film. Subsequently, the film is annealed while keeping the Bi evaporation source on, and then cooled to room temperature. The LaBi(00l) single-crystal thin film prepared by this method exhibits a [00l] orientation. The method provided by this invention offers controllable processes and good repeatability, providing an effective approach for preparing high-quality LaBi thin films.

The application provides a kind of anti-freezing high-performance concrete for building 3D printing and a preparation method thereof, the concrete contains cement 80-100 parts by mass, fly ash 80-100 parts, slag powder 220-270 parts, silica fume 15-30 parts, fine aggregate 1200-1500 parts, and polycarboxylic acid high-performance water reducing agent, thickening agent, polypropylene fiber and / or modified cellulose ether, water-binder ratio 0.55~0.67, fine aggregate is natural sand, granite waste sand or mixture thereof, replacement rate 0%~100%. During preparation, accurate measurement, dry mixing, solution preparation, wet mixing fluidization, high-speed slurry, printing forming and moisture curing are carried out. The application adopts microstructure self-optimization active anti-freezing design, without coarse aggregate, which greatly reduces carbon emission, the anti-freezing grade of concrete reaches F125-F150, with excellent printability and mechanical properties, without printing head blockage problem, the preparation process is controllable, and is suitable for building 3D printing engineering in cold and seasonal freeze-thaw areas.

The invention discloses a steel plate surface defect coping method for high-surface engineering machinery, which relates to the technical field of metal material surface defect repair, and comprises the following steps: positioning the defect position on the surface of a steel plate, and determining the defect type and the defect size; determining a corresponding grinding area based on the defect type and the defect size of each defect; sequentially carrying out rough grinding treatment and accurate grinding treatment on the grinding area corresponding to each defect; and polishing the grinding area corresponding to each defect. Through the specific grinding area control and grading progressive grinding process, the defects are completely eliminated, the grinding area and the steel plate body are in smooth transition, the surface is smooth, grinding traces are difficult to distinguish by naked eyes, the high-value steel plate with the high surface defects is saved, and the production cost of an enterprise is greatly reduced.

The application discloses a membrane separation and purification process of high-purity effective components of Astragalus and Angelica and a capsule preparation thereof, and belongs to the technical field of traditional Chinese medicinal material processing and preparation. The application solves the technical problems of high ash residue and low capsule bioavailability in the preparation process of the existing Astragalus and Angelica capsules. The application comprises the following steps: raw material pretreatment, countercurrent extraction, coarse filtration through a ceramic microfiltration membrane, nanofiltration separation of the filtered clear filtrate into a solvent-resistant nanofiltration membrane system, and obtaining refined Astragalus and Angelica medicinal powder after elution and drying. The application realizes the precise purification goal of "only removing impurities and not removing medicine", can reduce the inorganic ash content in the extraction liquid by more than 50%, and efficiently retains core medicinal components such as astragaloside and angelica polysaccharide. The prepared Astragalus and Angelica capsules are accurate in effective component content, have small gastrointestinal irritation, and are good in storage stability.