62results about How to "Reasonable design of preparation process" patented technology

The invention relates to a fire-retardant ACS/PVC plastic alloy and a manufacturing method thereof. The alloy uses ACS resin and PVC resin as base materials; and compound fire retardant, stabilizer, compatilizer, processing aid, antioxidant and lubricant are added into the base materials in proportion by weight, then the materials are mixed at high speed, and the mixture is blended, extruded and granulated in a double-screw extruder to form the alloy. The prepared fire-retardant ACS/PVC plastic alloy has the advantages of good fire-retardant property, weather resisting property, electrostatic resistance, mechanical property and processing property, can be widely applied in the fields of electron, electrical appliances, communication, instruments, building materials, automobile parts and the like, and is an engineering plastic alloy with good development prospect.

The invention discloses a method for preparing a superhigh temperature resistant iridium alloy by using a powder metallurgy method, comprising the following steps of: 1, synthesizing a mother alloy at high temperature; 2. Ball-milling and refining mother alloy powder at high energy; 3, ball-milling mixed material: adding a proper amount of iridium powder in the mother alloy powder to form a mixed powder and sufficiently mixing the mixed powder by using a ball mill; 4, cold isostatic pressing forming: filling the mixed powder into a cold isostatic pressing mold for cold isostatic pressing to prepare a powder pressed shape; 5, high-temperature sintering treatment: sintering the powder pressed shape in stage at high temperature; 6, hot processing treatment: forging and/or rolling the sintered powder pressed shape at high temperature by adopting forging and/or rolling equipment; and 7, annealing treatment. The preparation process has reasonable design, simple steps and convenient operation; the prepared iridium alloy material has favorable performance, high purity, fine crystalline grain, high strength at high temperature and less loss of precious metal in the preparation process; and the invention is particularly suitable for processing and manufacturing rare and precious metal materials.

The invention discloses an antibacterial nanofiber and a preparation method thereof. The preparation method comprises: preparing cellulose nanofibers from biomass wood fibers through physical and chemical treatment, oxidizing the cellulose nanofibers through an oxidant solution to obtain oxidized nanofibers, putting the oxidized nanofibers in a silver-ammonia solution for a reaction and drying thefibers to obtain antibacterial nanofibers. The preparation method has a reasonable design, is easy to operate and prepares compact porous nanofibers with a high length-diameter ratio. The nanofiber can adsorb external bacteria and has antibacterial and antiseptic effects.

The invention discloses a method for preparing ferrotitanium with titanic iron ore, comprising the following steps: 1, preparing titanic iron ore electrode by crushing, evenly mixing, press-forming and high-temperature sintering the titanic iron ore raw material in the selected ore, of which the main impurity elements are P, S, Mg, Al, Ca, O and Si; 2, carrying out fused salt electrolysis by taking titanic iron ore electrode as the cathode, and graphite rod as the anode under the protection of argon to obtain the primary titanic iron ore product in which the main impurity elements are S, P and Si; and 3, vacuum melting the washed and dried primary titanic iron ore product in a vacuum furnace to remove the impurity elements of S, P and Si contained in the primary product so as to obtain the ferrotitanium. The method has simple preparing steps and convenient operation and low cost, can greatly reduce the energy consumption and environment pollution in metallurgy process and can effectively avoid waste of mineral resources.

The invention discloses a wood biochar material capable of adsorbing heavy metals and a preparation method thereof. The preparation method comprises the following steps: selecting a wood biomass raw material; subjecting the biomass raw material to physical and chemical treatment so as to obtain a biomass nanofiber aerogel; then placing the biomass nanofiber aerogel in a shielding gas for high-temperature pyrolysis; and finally performing alkaline high-temperature activation so as to prepare the porous biochar fiber aerogel material. The preparation method of the invention is reasonable in process design and simple to operate; and a prepared biochar fiber aerogel is of a three-dimensional porous structure which not only improves adsorption efficiency but also prolongs the service life of the recycled biochar material.

The invention discloses a preparation method of a micro order niobium foil. According to the method, three rolling process reversible type rolling is performed on a niobium belt by utilizing a Sendzimir twenty-roller cold rolling machine, the obtained niobium foil is cleaned, and subjected to edge splitting and heat treatment after each rolling process reversible type rolling, and finally, the micro order niobium foil is obtained. According to the method, three rolling process rolling is performed on the niobium belt with the width being 100 mm to 120 mm and the thickness being 0.15 mm to 0.2mm by adopting the Sendzimir twenty-roller cold rolling machine. Due to the beneficial effects that the Sendzimir twenty-roller cold rolling machine is large in rolling force and high in rolling precision, by designing a reasonable rolling process, the thickness precision of the micro order niobium foil is greatly guaranteed; meanwhile, through a reasonable annealing process, the structure internal stress of the niobium foil is eliminated in time, influences on the niobium foil in the rolling process are reduced, and finally, the micro order niobium foil with the thickness being 0.007 mm to 0.009 mm is obtained.

Each of the disclosed tablet contains Notoginsen triterpenes 25-100mg, lactin 100-415mg, tartaric acid 28-120mg, stevioside 5-20mg, polyethylene glycol 6000 12-50mg, sodium hydrogen carbonate 26-110mg, and magnesium stearate 1-5mg. The preparing process consists of (1) disintegrating and mixing the raw material, making soft material with ethanol, sieving and drying, (2) heating polyethylene glycol 6000, charging sodium hydrogen carbonate, stirring, cooling down and disintegrating, sieving, mixing with the obtained particles and magnesium stearate, (3) pelleting.

The invention discloses a lightweight high-strength carbon fiber graphene plastic pipe. The plastic pipe is prepared by the following raw materials by weight: 80-90 parts of polyvinyl chloride, 10-20parts of carbon fiber, 15-20 parts of carbon fiber intercalated graphene composite material, 8-12 parts of modified calcium carbonate, 0.5-1 part of acrylate, 0.8-1.5 parts of zinc stearate, 1-2 partsof antioxidant, 0.8-1.5 parts of lubricant and 0.5-1 part of stabilizer. The plastic pipe is formed by preparation of the carbon fiber; preparation of the carbon fiber intercalated graphene compositematerial; material mixing and extrusion molding. The preparation process is reasonable in design, simple, practical, not only suitable for large-scale industrial production of the plastic pipe, but also capable of ensuring high-performance quality of the plastic pipe, thereby being widely applicable to the fields of water supply and drainage systems, heating pipeline systems and gas transportation systems.

The invention belongs to the technical field of transformer application, and particularly discloses a production process of a power-frequency encapsulated transformer. The process comprises the following steps: 1, material taking; 2, primary winding; 3, secondary winding; 4, tin soldering; 5, appearance inspection; 6, turn-to-turn voltage withstand test; 7, silicon steel sheet assembling; 8, argonarc welding; 9, voltage withstanding test on a semi-finished product; 10, testing of the electrical performance of the semi-finished product; 11, assembling of a shell; 12, baking and drying; 13, automatic vacuum filling and sealing; 14, glue surface inspection; 15, inspecting of the appearance of a finished product; 16, frequency doubling and voltage doubling test of the finished product; 17, voltage withstanding test on the finished product; 18, testing of the electrical performance of the finished product; 19, packaging. The invention has the beneficial effects that the preparation processis reasonable in design; the prepared product is excellent in quality, long in service life and high in production efficiency; meanwhile, the rejection rate of the product is low, and the productioncost input of raw materials is saved.

The invention discloses a preparation method of 3-anilino-2-(3,4,5-trimethoxy benzyl) acrylonitrile, which comprises the following steps: dissolving acrylonitrile derivative 3-dimethyl amino propionitrile and 3,4,5-trimethoxy benzaldehyde in an aprotic solvent, i.e. dimethyl sulfoxide, and adding a catalytic amount of alcoholic solution of potassium hydroxide; carrying out a first step of condensation reaction to generate 3-dimethylamino-2-(3,4,5-trimethoxy benzyl) acrylonitrile under the condition of heat; diluting the product after the condensation reaction with methyl alcohol, adding aniline with a catalytic amount, fully stirring, dropwise adding one of dilute sulphuric acid, diluted hydrochloric acid or acetic acid in the mixture until the pH value is 0.5-6.5 and heating the mixture for reaction to complete the second step of reaction of replacing dimethylamine functional groups by the aniline; after the reaction, steaming to eliminate the methyl alcohol in the system, freezing the system after adding an appropriate amount of water to 0-5 DEG C, separating out the 3-anilino-2-(3,4,5-trimethoxy benzyl) acrylonitrile which is a yellow solid product, and filtering and drying the product. The invention has the advantages of reasonable technology design, high yield, lower production cost, simple and convenient operation and convenient for mass production in industry.

The invention belongs to the technical field of transformer application, and particularly discloses a production process of a high-frequency high-voltage encapsulation vacuum transformer. The method comprises the following steps of: the step 1, material receiving; the step 2, laser marking of a shell; the step 3, primary winding; the step 4, secondary winding; the step 5, foot winding; the step 6,peeling of skin by a laser; the step 7, appearance inspection; the step 8, tin soldering; the step 9, appearance inspection; the step 10, assembling of a magnetic core; the step 11, electrical performance test of a semi-finished product; the step 12, assembling of a housing; the step 13, baking and drying; the step 14, automatic vacuum encapsulation; the step 15, inspection of glue surface; the step 16, appearance inspection of a finished product; the step 17, test of pressure resistance of the finished product; the step 18, electrical performance test of the finished product; and the step 19, package. The preparation process is reasonable in design, the prepared finished product is good in quality, long in service life and high in production efficiency of the product, the production process is reasonable in design, the product rejection rate is low, and the product cost input of raw materials is saved.

The invention relates to a formula of biomass emulsified diesel oil. The formula is characterized in that: the formula consists of heavy oil, diesel oil, water and an addition agent, wherein the compositions in percentage by weight of the formula are: 56 to 90 percent of the diesel oil, 5 to 25 percent of the water and 5 to 18 percent of the addition agent; moreover, the compositions in percentage by weight of the addition agent are: 9.9 to 69.9 percent of fatty acid, 25 to 85 percent of oleic acid, 4 to 14 percent of ethanolamine, 0.5 to 4 percent of isoamyl alcohol, 0.1 to 3 percent of sulfanilate and 0.5 to 10 percent of sorbitol monoester. The formula has the advantages that: the formula has reasonable proportioning, and the product does not have side effect on a machine body, has effective energy conservation and high stability, and can replace diesel oil.

The invention provides novel tablet candies capable of regulating blood pressure and a preparation method thereof. The novel tablet candies capable of regulating blood pressure are prepared from 15-25parts by weight of cyclocarya paliurus, 35-55 parts by weight of golden camellia, 35-55 parts by weight of moringa leaves, 15-25 parts by weight of mongolian dandelion herb, 85-115 parts by weight ofkudzuvine roots, 10-30 parts by weight of glucose powder, 10-30 parts by weight of maltodextrin, 2-6 parts by weight of citric acid, 10-15 parts by weight of magnesium stearate, and 2-6 parts by weight of menthol. The preparation method of the novel tablet candies capable of regulating blood pressure comprises the following steps of carrying out extracting, carrying out concentrating, carrying out drying, carrying out tablet-compressing and so on; and the best extraction conditions are as follows: the water volume is 1.5 liters, extraction is performed for 4 times, and extraction each time isperformed for 1 hour. The novel tablet candies capable of regulating blood pressure solve the technical problems of novel blood-pressure-regulating tablet candies in the prior art, namely low contentof total flavonoids as an active ingredient, poor curative effects and so on. The preparation method of the novel tablet candies capable of regulating blood pressure is rational in experimental design; and the prepared finished products are high in total flavonoid content and good in stability. And thus, the prepared novel tablet candies capable of regulating blood pressure have improved quality,and are simple and convenient to use, safe, effective, and free of toxic and side effects.

The invention discloses a synthesis production process of difluorochloroacetic acid, comprising the following steps: charging sulfur trioxide with nitrogen gas into an oxidation reaction kettle by an intermittent process, starting stirring; after reaching a certain temperature, adding difluorotetrachloroethane and catalyst according to a predetermined ratio into the oxidation reaction kettle; heating for reaction, observing the backflow condition, starting steaming the byproduct sulfuric chloride when the kettle temperature rises to a certain temperature while the backflow is small; after steaming the byproduct sulfuric chloride, carrying out charging for the second time; carrying out three-stage spray hydrolysis and absorption on the product difluorochloracetyl chloride to generate crude product difluorochloroacetic acid, and carrying out defluorination and rectification on the crude product to obtain finished product difluorochloroacetic acid. The synthesis production process of difluorochloroacetic acid disclosed by the invention adopts the difluorotetrachloroethane as a raw material, the finished product difluorochloroacetic acid is prepared by oxidation reaction, the preparation process has reasonable design, high absorption rate, high overall yield and low energy consumption; and the byproduct can be hydrolyzed and reused, so that the production process is clean, environment-friendly, safe and reliable.

The invention belongs to the technical field of transformer silicon steel sheet application, and particularly discloses a transformer silicon steel sheet stacking and welding method. The method comprises the steps 1, preparing materials; 2, stacking E-shaped sheets; 3, assembling the E-shaped sheets, specifically, putting the stacked E-shaped silicon steel sheets into a middle hole of a transformer framework, and paying attention to that the loading direction cannot deviate or incline so as to prevent the silicon steel sheets from damaging enameled wires for winding a coil in the framework andbreaking the wires; 4, stacking and assembling I-shaped sheets, stacking the I-shaped silicon steel sheets according to the stacking thickness of the E-shaped silicon steel sheets, and then placing the I-shaped silicon steel sheets on the E-shaped silicon steel sheets; 5, welding the silicon steel sheets; and 6, conducting weld joint inspection. The transformer silicon steel sheet stacking and welding method has the beneficial effects that the preparation process is reasonable in design, the stacking and welding production efficiency of silicon steel sheet products is high, the protection process is reasonably designed at the same time, product rejection rate is low, the raw material production cost input is also saved, and the manufactured products are excellent and stable in quality.

The invention discloses a protective film for liquid crystal display and a preparation process of the protective film. The protective film for liquid crystal display comprises a first ink layer, a first PET release film, a silica gel layer and the like, wherein the bottom surface of the first ink layer is connected with the top surface of the first PET release film, the bottom surface of the firstPET release film is connected with the top surface of the silica gel layer, and the bottom surface of the silica gel layer is connected with the top surface of a PU adhesive layer; the bottom surfaceof the PU adhesive layer is connected with the top surface of a PET base material, the bottom surface of the PET base material is connected with the top surface of an acrylic adhesive layer, and thebottom surface of the acrylic adhesive layer is connected with the top surface of a scratch-resistant adhesive layer; and the bottom surface of the scratch-resistant adhesive layer is connected with the top surface of a second PET release film. The protective film has reasonable design, a simple structure, excellent electric insulativity, resistance to high temperature and friction and good stability, requirements of different customers can be met, a protective film attaching procedure can be eliminated, the efficiency can be improved, and the cost is saved; and the problem that the protectivefilm falls off from the film periphery can be solved, and the protective film can be applied to high-temperature conditions, curved surface occasions and other special application fields.

The invention relates to a formula of emulsified heavy oil. The formula consists of heavy oil, water and an addition agent, wherein the compositions in percentage by weight of the formula are: 69.9 to 89.9 percent of the heavy oil, 10 to 30 percent of the water and 0.1 percent of the addition agent; moreover, the compositions in portion by weight of the addition agent are: 6 to 20 portions of cobalt iso-octoate, 6 to 20 portions of manganese iso-octoate, 1 to 10 portions of nickel naphthenate, 35 to 65 portions of sorbitan monooleate, 4 to 8 portions of sorbitan polyoxyethylene monooleate, 1 to 2 portions of nonyl phenol polyoxyethylene (6) ether, 4 to 8 portions of sodium hydroxide, 2 to 4 portions of xylene, 1 to 6 portions of methanol and 1 portion of sunset red. The formula has the advantages of reasonable proportioning, advanced technological method, low price, high stability and catalytic and combustion-supporting effects.