199results about How to "Less production equipment" patented technology

The invention relates to a method for preparing multi-layer graphene, and belongs to the technical field of carbon materials. The multi-layer graphene is prepared from expanded graphite serving as a raw material through ultrasonic dispersion, solid-liquid separation and drying. The thickness of the multi-layer graphene prepared by the method is between 1 and 10nm; the number of layers is between 2 and 20 layers; and the aperture is mainly between 6 and 50nm. The multi-layer graphene has the characteristics of high electrical conductivity, high heat conductivity, high electromagnetic wave absorptivity, wear resistance and the like. The method has the advantages of simpleness, convenient operation and low production cost, capability of reducing production energy consumption, no three wastes emission, environmental friendliness and convenient popularization and application. The multi-layer graphene prepared by the method can be used as the electrode materials of batteries and super capacitors, can also be used as the conductive agents of high molecular materials, ceramic materials, silicate materials and the like, and can also be used as the conductive agents of lithium batteries, alkaline batteries and nickel-metal hydride batteries.

The technological process of fast forming precise semi-axle casing with circular rod material heated to forging temperature includes four steps of upsetting, punching hole, perforating and positive extruding. The present invention realizes the fast formation of precise semi-axle casing in only four steps. Combined male die structure is adopted to simplify the technological process of extruding hollow rod, and the present invention has high production efficiency and raised material utilization.

The invention discloses a one-step method based solid-phase polypeptide synthesis method. The technology of blowing in nitrogen or insert gases to volatilize a volatile solvent and reduce the temperature is adopted in each condensation reaction of connected protected amino acids, the nitrogen or the insert gases are filled into a reaction mixture so that the volatile solvent is volatilized and the temperature of a reaction system can be maintained at 15-20 DEG C, after an auxiliary condensing agent is added to start the condensation reaction, the temperature of the condensation reaction system is always stabilized at 22-28 DEG C by a heat insulation device, and during condensation of protected amino acids, the amino acids are unnecessary to be activated at low temperature in an activator and then be transferred to a condensation reactor, thus all the chemical reactions for synthesizing polypeptide are continuously completed in the same reactor in sequence. The method for synthesizing angiotensinamide is environment-friendly and efficient, has low requirements for equipment and can be applied to large-scale industrial production.

The invention relates to the technical field of transfer films, in particular to a super-specular anti-scraping transfer film and a preparation method thereof. The preparation method of the super-specular anti-scraping transfer film comprises the following steps that a PET (Polyethylene Terephthalate) thin film is taken; waterborne polyurethane, an alcohol organic solvent and water in parts by weight are mixed and stirred uniformly, and blended into waterborne release dope; the surface of the PET thin film is coated with the blended waterborne release dope to form a waterborne release coating layer; the waterborne release coating layer is dried to be a waterborne release layer; a semifinished PET thin film loaded with the waterborne release layer is prepared; the outer surface of the waterborne release layer is coated with information coating layer dope to form an information coating layer; a vacuum aluminum coated layer and a gum application layer are arranged on the surface of the information coating layer sequentially; and the finished super-specular anti-scraping transfer film is prepared. The super-specular anti-scraping transfer film is high in scraping resistance, and high in specular glossiness, and the preparation method of the super-specular anti-scraping transfer film is simple in technology and high in production efficiency.

The invention discloses a flange producing technique. The flange producing technique comprises a flange stock forging and a blank cutting and shaping; the flange stock forging comprises an electric stove heating, forging and shaping after cooling, extruding and shaping, and solution heat treatment; the blank cutting and shaping includes punching hole, acid washing, rough and fine turning, outer hole drilling, and processing and shaping. A crystal grain of the forging stock is uniform in organization ,low in hardness, good in toughness, high in yield degree, strong in tensile strength, and standard elongation rate; the flange stock forging efficiency is improved by 300%, and materials can reach zero loss; the produced flange disk is accurate in dimension and good in surface finishing degree.

The invention discloses a preparation method of a nitrogen and phosphorus co-doped carbon-coated graphite anode material, which comprises the following steps of: (1) coating, i.e. weighing graphite and ionic liquid, adding the graphite and the ionic liquid into a high-speed stirrer, carrying out dispersion for 1 to 4h at a rotating speed of 500 to 5,000r/min, and after completing processing, obtaining graphite coated with the phosphorus-containing ionic liquid; and (2) carbonization, i.e. placing the graphite coated with the phosphorus-containing ionic liquid in an atmosphere protection furnace to carry out sintering, heating to a temperature of 400 to 1,000 DEG C at a heating rate of 2 to 25 DEG C per min and carrying out heat preservation for 4 to 18 hours to obtain the nitrogen and phosphorus co-doped carbon-coated graphite anode material. By the structure, the electrical conductivity and the activity of a surface coating layer are greatly strengthened, not only the electronic conductivity of the nitrogen and phosphorus co-doped carbon-coated graphite anode material is effectively improved, but also diffusivity of lithium ions is greatly improved, and the obtained material has excellent rate capability and low-temperature discharge performance.

An ink washing liquid is made by mixing water with an emulsifier and a rubber anti-aging agent by taking the water as a main substrate. The proportion of each component is: 5-10 percent of emulsifier TX-10, 5-10 percent of emulsifier FM, 5-10 percent of sodium hydroxide, 5-10 percent of emulsifier PN, and 0.1-0.3 percent of the rubber anti-aging agent. The invention solves hazards that current printing industry uses organic solvents such gasoline, kerosene and ether, etc. as washing solvents, thus resulting in flammable, explosive and unsafe storage and use, and the deficiency of environmental contamination, health hazard and influence on printing quality, and has a plurality of advantages of easy access of raw materials, non-toxicity, non-stimulation, pollution-free, non-inflammability, the saving of the gasoline and the kerosene in shortage, simple technology and less production equipment.

The invention relates to a high-temperature co-firing ceramic slurry and a preparation method thereof. The slurry comprises the components of, by weight: 17-61.7% of tungsten powder, 4-48.5% of molybdenum powder, 0-20% of an inorganic additive, and 18% of an organic carrier. The inorganic additive can be one or more selected from alumina, kaolin, talcum powder, silica, and calcium carbonate. The organic carrier can be a plasticizer, a binder, and a dispersing agent. The raw materials with the ratio are mixed with the processed such as drying, sieving, rapid ball milling, and the like; and the mixture is rolled into slurry with a three-roller grinder, such that the high-temperature co-firing ceramic slurry is obtained. According to the invention, slurry resistance temperature coefficient can be adjusted through adjusting the ratios of tungsten and molybdenum in the slurry, such that wide resistance temperature coefficient can be obtained. Therefore, the formula can be regulated according to different requirements of different electronic components, such that an application purpose can be satisfied.

The invention relates to a heat exchanger beneficial to discharge of condensate water, comprising a collecting pipe, a flat pipe and a fin. The heat exchanger is characterized in that one side of the collecting pipe and the fin are provided with regularly arrayed flat pipe holes, of which size and shape are matched with the size and shape of the flat pipe section; the flat tube is a flat and straight structure arranged in the transverse direction; the pin is a plain film or a corrugated sheet and is arranged in the longitudinal direction, the flat pipe is arranged in the flat pipe holes of a pin pack. The invention has the beneficial effect that instead of being horizontally arranged, the flat tube is now obliquely arranged, and instead of being staggeringly arranged with fold fin-flat pipe-fin, the fin is now arranged perpendicular to the flat pipe, so that condensate water on a core of the heat exchanger, which is produced by system operation can slide to an oblique fin flanging along the vertically arranged fin and then flow out of the core along the flanging without remaining condensate water. The heat exchanger of the invention can not only be applied to an outdoor unit of a single cold air conditioner but also to an outdoor condenser of an indoor evaporator and a heat pump air conditioner.

The invention discloses a preparation method for a porous graphene micro-sheet. The preparation method is characterized by comprising the following steps: 1) pretreatment of graphite: putting graphite into a mixed solution consisting of an oxidizing agent and intercalator, performing ultrasonic stirring for 3-5h; washing, filtering and drying the obtained product, and putting the product into a muffle furnace, and processing the product in nitrogen atmosphere at a high temperature of 600-1,200 DEG C for 2-6h to obtain an expanded graphite product for use; and 2) preparation of the porous graphene micro-sheet: dissolving the expanded graphite obtained in the above step into a certain amount of deionized water, adding 0.1-2wt% of surfactant, performing ultrasonic stirring for 0.5-2h, and then adding a certain amount of pore forming agent, and putting into the muffle furnace under the N2 protective atmosphere for processing for 1-3h; washing the obtained product by dilute acid or dilute alkali and the deionized water solution for multiple times; drying the product in a vacuum drying oven for 2-6h to obtain the porous graphene micro-sheet. The porous graphene micro-sheet prepared by the preparation method provided by the invention is relatively high in specific surface area (850-1,000 m2/g); and due to the porous structure, the diffusion rate of the lithium ions can be improved, and a relatively better electrochemical performance can be obtained.

The invention provides silicon dioxide-based CMP (Chemical Mechanical Polishing) solution which is applied to global planarization of a very large scale integrated circuit silicon substrate and an interlayer medium and a preparation method of the silicon dioxide-based CMP solution. The polishing solution contains the following components in percentage by weight: 10-50 percent of nano silicon dioxide grinding material, 0.1-10 percent of dispersant, 0.1-10 percent of wetting agent, 0.1-10 percent of chelating agent, 0.01-1 percent of pH (Potential of Hydrogen) regulator and the balance of de-ionized water. The polishing solution is prepared through the means of: modifying with a surfactant, strongly and mechanically stirring, performing high-shear grinding, performing ultrasonic dispersion and the like, and the problem of extreme easiness in flocculation and agglomeration of nano-scale grinding material particles is solved. Since the particle size distribution of the grinding material is narrow, the range is selectable, the polishing rate is easy to adjust and control and the polishing solution is alkaline, equipment is not corroded, less damage is caused, cleaning is easy and the environment is not polluted. The silicon dioxide-based CMP solution can be used for chemical mechanical polishing of the very large scale integrated circuit silicon substrate, the interlayer medium, a shallow trench isolation isolator, conductor and damascene metal.

The invention discloses a ternary boride reinforced Ti-based (C,N) metal ceramic material and a preparation method thereof. The main preparation process comprises the following steps that Ti (C,N) metal ceramic raw material powder, carbide and nitride boride powder, binding phase raw material powder and binary boride powder are taken as raw materials, Ti-based (C,N) metal ceramic is prepared through the steps of ball milling mixing, drying, forming and sintering, wherein second phase ceramic particles generated by primary reaction are distributed in a binding phase of the metal ceramic material in a fine dispersion mode, the hardness and toughness of the metal ceramic material can be effectively improved through the phase. Compared with an existing technology for enhancing wear resistance,such as coating and surface treatment, the Ti-based (C,N) metal ceramic material prepared through the method has the advantages that the rockwell hardness reaches 91.5-94 HRA, the bending strength can reach 1800-2800 MPa, and the fracture toughness can reach 12-15 MPa.<-1/2>; and in addition, the depth of the grinding crack measured is reduced by about 70% compared with that of metal ceramic withthe same binding phase, and the friction coefficient is reduced by about 0.1.

The disclosed shape-memory sorting and processing method for ready-made clothes comprises: washing in water, dewatering; preparing sorting solution with weight as 60-80% of the clothes, spraying solution to the clothes for treatment; loose baking, forcing cold wind; high-temperature baking, cooling, and humidifying. This invention leaves out steps to decrease device and water consumption and release the pollution load, and improves work quality and efficiency.

The invention provides an airflow impurity separation device and a manufacturing method of the airflow impurity separation device, belonging to the technical field of operation, and solving the problem that the existing filter screen is easy to clog. The airflow impurity separation device comprises a frame and a plurality of folded plates arranged in the frame, wherein the folded plates are folded in a continuous wave mode to form a plurality of air channels; and a plurality of folded plates are folded to form a plurality of V-shaped separation filter holes. The airflow impurity separation device only needs to be cleaned on schedule and does not need to be replaced, and further, the use cost is reduced. The airflow impurity separation device is easy to clean, separated grease and water vapor can automatically flow out, and maintenance period is prolonged. The airflow impurity separation device is high in separation efficiency and stable in performance. The airflow impurity separation device manufactured by adopting the manufacturing method has the advantages that the number of production devices is few, the number of required processing parts is few, and production cost is low.

The invention belongs to the technical field of organic polymer material products and in particular relates to a polyurethane elastomer printing rubber roller and a preparation method thereof. The polyurethane elastomer printing rubber roller is prepared from the following raw materials in parts by weight: 0.8-1.2 parts of polyalcohol, 0.25-0.4 part of polyisocyanate, 0.1-0.2 part of curing agent, and 0.00001 part of reaction control agent, wherein polyalcohol is polyester polyalcohol 218. The invention further provides the preparation method of the polyurethane elastomer printing rubber roller. The preparation method comprises the following steps of: preparing a prepolymer and a curing component at first; and pouring to obtain the polyurethane elastomer printing rubber roller. According to the invention, the processing technology is simplified, so that mixing, forming and vulcanizing of materials are integrated; the printing and dyeing rubber roller prepared by the invention is good in solvent resistance, easy for machining and good in elasticity; in the aspect of solvent resistance, the printing and dyeing rubber roller prepared by the invention is 2 times of other rubber rollers; the surface smoothness of the printing and dyeing rubber roller prepared by the invention can be up to the mirror state; the service life of the printing and dyeing rubber roller prepared by the invention is 2-3 times that of other rubber rollers; the service life of the general printing and dyeing rubber roller is 36 hours; and the service life of the printing and dyeing rubber roller prepared by the invention is about 80 hours.

The invention relates to a low temperature solid phase synthesis method of hexagonal phase nickel purite submicron crystal. The molar ratios of nickel acetate and sulfur source of the invention are respectively 0.005molar and 0.005 to 0.0075molar, grinded nickel acetate and sulfur source powder are weighed and put into a crucible to stir until mixture is homogeneously mixed; the crucible which carries raw materials is put in a muffle furnace, reacts three hours at a temperature of 350 DEG C to 400 DEG C, and is naturally cooled to a room temperature; after being grinded, black powder hexagonal phase nickel purite submicron crystal is obtained. Defects of harsh conditions, high energy consumption, low yield, poor purity, expensive devices, high temperature, catalyst and virulent H2S gas, difficult processing of organic solvent, being difficult in industrialization and comparatively difficult in separating microemulsion, environment pollution, etc. of prior technique are overcome. The invention utilizes two reducing groups -NH2 at the sulfur source as protection, combing the advantage of liquid and solid fully contact and react in a heating up process, hexagonal phase NiS crystal product is directly synthesized by the muffle furnace at a low temperature condition in the air.

The invention discloses a continuous production method for trifluoro monochloro chrysanthemic acid. The method includes the steps of (1) performing an addition reaction to prepare 3,3-dimethyl-4,6,6-trichloro-7,7,7-trifluoro heptylic acid ester with 3,3-dimethyl-4-pentenoic acid methyl ester and trifluorotrichloroethane as initial raw materials; (2) performing a cyclization reaction with sodium tert-butoxide to generate cis(trans)-3-(2,2-dichloro-3,3,3-trifluoropropyl)-2,2-dimethyl cyclocarboxylate; and (3) performing a saponification reaction to prepare 3-(2-chloro-3,3,3-trifluoro-propylene-1-yl)-2,2-dimethylcyclopropane carboxylic acid, namely, the trifluoro monochloro chrysanthemic acid. In the invention, continuous control is employed in the production method, so that the method is simple in process, is high in equipment utilization, is high in yield and stable in quality of products, is low in production cost and has a wide application prospect.

The invention relates to a preparation process for 4,4'-bis(chloromethyl)-1,1'-biphenyl, and belongs to the technical field of chemical synthesis. The 4,4'-bis(chloromethyl)-1,1'-biphenyl is prepared by synthesizing raw materials paraformaldehyde and biphenyl under the catalytic action of zinc chloride, acetic acid and cyclohexane. According to the process, hydrogen chloride is continuously provided for synthesis reaction by virtue of reaction of sulfuryl chloride and concentrated hydrochloric acid to ensure smooth chloromethylation reaction, so that the yield and the product quality of the 4,4'-bis(chloromethyl)-1,1'-biphenyl are improved, the amount of sewage required to be treated is small, and the treatment cost is low. According to the preparation process for the 4,4'-bis(chloromethyl)-1,1'-biphenyl, the phenomenon that an excessive amount of water is introduced into a reaction system to further reduce the catalytic effect of the zinc chloride is avoided, and moreover, production of a highly carcinogenic intermediate product is avoided; the preparation process is environment-friendly and applied to industrial expanded production, and the production cost is reduced.