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Conjugate polyether, polyurethane raw material composition, polyurethane foams and applications thereof
InactiveCN102030977ALow densityLight in massPolyurea/polyurethane coatingsDiethyl phosphateThermal insulation
The invention provides conjugate polyether, comprising 6-8 parts of polyether polyol EP-330N, 2-4 parts of polyether polyol SU-450L, 0.06-0.15 parts of non-hydrolytic surface active agent, 1.5-2 parts of water, 0.8-1.5 parts of nonyl phenol polyoxyethylene ether NP-10, 0.03-0.05 part of foaming catalyst PC52, 0.3-0.5 part of foaming catalyst NE300 and 1.3-2 parts of ethyl diethyl phosphate. The invention further provides a polyurethane raw material composition, polyurethane foams and applications thereof. Compared with the conventional polyurethane foams, the polyurethane foams in the invention have low density, low mass, proper aperture ratio, good sound-proofing effect, and good heat insulating effect, and compared with the polyurethane foams with middle and high density, the cost of the polyurethane foams in the invention is lower. While the polyurethane foams in the invention have low density, the polyurethane foams can reach the application standards of thermal insulation materials, sound-proofing materials, sandwich panels for construction, spraying materials for ceilings of automobiles or filling materials and the like. The conjugate polyether is a total-moisture foaming system, has no damage to ozone layer and has the advantage of environmental protection.
Owner:SHANGHAI DONGDA POLYURETHANE
Whitening toothpaste and its production method
Disclosed is a whitening toothpaste comprising toothpaste base material, 0.5-5 wt% of total composition of compound whitening agent (OCH) which is compounded from sepiolite with nano tunnel structure and polyvinylpyrrolidone (PVP), the composite whitening agent can sustain and stabilize the adsorption capacity of the sepiolite after being charged into the toothpaste, it can remove the dental plaque on the teeth surface and expel the dirty speckle in the teeth slots.
Owner:康博士日化集团有限公司
High interlayer spacing artificial graphite material and preparation method thereof
ActiveCN108840331AImprove conductivityIncrease layer spacingCarbon compoundsStructure of the EarthGraphite
The invention provides a high interlayer spacing artificial graphite material and a preparation method thereof. The material is artificial graphite prepared from asphalt as a raw material through crosslinking, polycondensation and graphitization treatment, has an obvious layered structure, has an interlayer spacing of 0.34-0.38 nm, and has high electrical conductivity. The preparation method of the high interlayer spacing artificial graphite material provided by the invention comprises the following steps: taking asphalt as a raw material, adding a proper amount of crosslinking agent, carryingout polycondensation and crosslinking reaction under a high-temperature and high-pressure condition to obtain crosslinked mesophase asphalt, and then carrying out low-temperature treatment and graphitization to obtain the high interlayer spacing artificial graphite material.
Owner:贵州中科星城石墨有限公司
Two-phase high-frequency pre-detonator
ActiveCN103867338ASimple partsOptimize the installation positionIntermittent jet plantsShock waveDetonator
The invention provides a two-phase high-frequency pre-detonator. The two-phase high-frequency pre-detonator comprises a pneumatic valve and a detonation duct, wherein a fuel and air distribution and mixing device, a flame diffusion device, an intensified combustion device A, an intensified combustion device B and a shock reflection device are sequentially installed in the denotation duct along the flowing direction of air and fuel, the distance L1 between the front end surface of the fuel and air distribution and mixing device and the front end surface of the denotation duct is 1.0-2.0D, an ignition groove is processed on the wall surface of the denotation duct between the fuel and air distribution and mixing device and the flame diffusion device, the distance L2 between the rear end surface of the fuel and air distribution and mixing device and the front end surface of the ignition groove is 0.5-0.7D, and the distance L3 between the rear end surface of the ignition groove and the front end of the flame diffusion device is 1.0-1.2D. The two-phase high-frequency pre-detonator has the advantage that the conversion from slow combustion to denotation is realized in a short distance by reasonably designing the internal structure of a denotation chamber, optimizing all major parts and installation positions and adopting a combined method of intensified combustion and shock reflection.
Owner:BEIJING POWER MACHINERY INST
Multilayer varistor and preparation method for same
ActiveCN102709010ALower sintering temperatureSimple processResistor manufactureVaristor coresPhysical chemistryEngineering
The invention discloses a multilayer varistor and a preparation method for the same. The multilayer varistor comprises a varistor body and an internal electrode in a porcelain body, wherein the varistor body consists of a ZnO-Bi2O3-SiO2-SnO2 porcelain system; and the internal electrode is a pure Ag electrode. The varistor is high in electrical property and low in production cost.
Owner:GUANGDONG FENGHUA ADVANCED TECH HLDG
Composite membrane with high barrier property
InactiveCN104512068ANo destructive effectGood printabilityFlexible coversWrappersSurface layerCrystal structure
A disclosed composite membrane with high barrier property comprises an outer surface layer (1), a middle layer (3) and an inner layer (4); the outer surface layer (1) is paper, the middle layer (3) is aluminium foil, and the inner layer (4) is polyethylene; the paper outer surface layer (1) is a printing layer, the aluminium-foil middle layer (3) is nontoxic and odorless and is of a highly-compact metal crystal structure and has good moisture resistance, gas barrier property and shading property; and adhesive layers are arranged between the outer surface layer (1) and the middle layer (3), and between the middle layer (3) and the inner layer (4), and the inner layer (4) polyethylene is thermally bonded with a substrate. The composite membrane has small environmental pollution and does not influence of properties of a medicine self.
Owner:谢超
A touch appliance broad spectrum sterilization device and sterilization method thereof
InactiveCN101530622AEfficient removalSo as not to damageChemicalsRadiationElectronic componentRadiation Sterilization
A touch appliance broad spectrum sterilization device and sterilization method thereof comprise a fluid sterilization liquid vessel which is used for holding the sterilization liquid; an atomizing nozzle is connected with the sterilization liquid vessel; a seal chamber used for holding the touch appliance, is provided with provided with the atomizing nozzle; a light source and radiation sterilization module which is put into the seal chamber. The touch appliance broad spectrum sterilization device and the sterilization method thereof can be used for the spectrum disinfection sterilization of various touch appliances, which can not only eliminate germs on the touch appliances to effectively protect all the circuit and electronic components from being damaged so as to assure the normal applied function but also improve the efficiency of sterilization and have the characteristic of being easily operated.
Owner:卢开国
Oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and device thereof
PendingCN108531207AAchieve ultra-clean treatmentAvoid cokingSolid waste disposalTransportation and packagingBrickHeat conducting
The invention provides an oil-containing pollutant treatment method performing indirect heating using heat-conducting oil and a device thereof, and relates to the technical field of oil-containing pollutant treatment technologies. The method comprises five steps of breaking, hot washing, thermal desorption, oil-gas treating and ash treating. Breaking and hot washing are firstly conducted on oil-containing pollutants, then thermal desorption is conducted on solid pollutants on which initial oil removing is conducted, heat exchange is conducted by a thermal desorption device using the heat-conducting oil used for heating a heating furnace as a medium to heat the oil-containing pollutants in the absence of oxygen, the pollutants are volatilized or separated from pollution mediums, and the ultra-clean treatment of the oil-containing pollutants is achieved; wasted oil and residual of the device can be adopted as raw materials of the heating furnace to reduce operation cost; oil and gas treated by the thermal desorption device enter a subsequent gas treating system to further perform condensing, filtering and separating, atomizing condensing crystallizing processing is conducted on treated ashes, the ashes can be adopted as excellent raw material of construction materials such as floor bricks, hollow bricks and the like, and solid particle and dust pollution is avoided.
Owner:大庆百世环保科技开发有限公司
Desorption treatment method and device adopting flue gas for indirect heating
PendingCN108795464AReasonable designWide range of applicationsIndirect heating destructive distillationLiquid hydrocarbon mixture productionSlagPollutant
The invention provides a desorption treatment method and device adopting flue gas for indirect heating, and relates to the technical field of oily pollutant treatment. The method comprises five steps:crushing, thermal washing, thermal desorption, oil-gas treatment and ash slag treatment. A material is crushed firstly, oily pollutants are subjected to anaerobic heating by a thermal desorption device, and the pollutants can be volatilized or separated from a polluted medium; waste oil and waste residue of the device can be used as raw materials by a heating furnace for heat exchange, and the treated oil gas enters a subsequent gas treatment system, and is condensed, filtered and separated; treated ash slag is atomized, condensed and crystallized; a medium circulation pipeline of a condensing separator is provided with a power generator group; the power generator group adopts a high temperature medium for generating electricity, and can provides power to other devices while cooling the medium.
Owner:大庆百世环保科技开发有限公司
Water-based industrial cleaning agent and preparation method thereof
InactiveCN108795592AEasy to useNo destructive effectNon-ionic surface-active compoundsFoam regulating compositionsWater basedCleansing Agents
The invention relates to a water-based industrial cleaning agent. The water-based industrial cleaning agent comprises the following components in percentage by weight: 0.1-40% of an N-acyl amino acidanionic surfactant, 0.1-20% of fatty acid methyl ester ethoxylate, 0.1-8% of alkyl glycoside, 0.1-8% of hydroxypropyl methyl cellulose, 0.1-10% of an auxiliary agent, and 30-89% of water. The cleaningagent has the characteristics of simple formula, safe use, environment-friendliness and the like, has little irritation to skin, low toxicity, good biodegradability, good use stability and storage stability, and can further improve the traditional cleaning process and improve the cleaning quality while reducing sewage discharge and environmental protection pressure.
Owner:CHANGSHA PUJI BIOTECH
Movable core plate wooden door
InactiveCN108005548AImprove aestheticsConvenient after-sales serviceSpecial door/window arrangementsDoor leavesEngineeringLower face
The invention relates to the technical field of wooden door production, in particular to a movable core plate wooden door. The movable core plate wooden door is structurally composed of a door leaf frame, a door core plate, convex embedding positions, concave embedding grooves and fixing strips. The convex embedding positions are arranged on the upper face, the left side and the right side of thedoor core plate; the concave embedding grooves are formed in the positions, corresponding to the mounting position of the door core plate, on the door leaf frame, and the door core plate is embedded into the concave embedding grooves in the door leaf frame through the convex embedding positions; and the lower face of the door core plate is fixed to the door leaf frame through screws. The structureis simple, operation is easy, and the parts of the wooden door can be mounted and demounted flexibly; painting treatment before production is facilitated, the attraction degree of the wooden door isincreased, and mounting is convenient; the after-sale service of the wooden door is facilitated, the door core plate is of a movably-inlaid structure, thus, demounting is rapid and convenient, and anydestructive influence on the wooden door is avoided; and door core plate extending and retracting spaces are reserved in the concave embedding grooves, and elastic buffer strips are arranged in the concave embedding grooves, so that the stability of the wooden door is improved greatly, the wooden door is prevented from deforming and cracking, and the service life of the wooden door is prolonged.
Owner:李强
Double-fork shaft sleeve bearing automatic press-fitting system and assembling method
ActiveCN113369864ARealize uniform speed and smooth pressingGuaranteed one-time press fit in placeMetal working apparatusClassical mechanicsStructural engineering
The invention relates to a double-fork shaft sleeve bearing automatic press-fitting system and an assembling method, and belongs to the technical field of automatic assembling. The problems that a bearing is prone to being damaged and the mounting precision is poor during press-fitting of the double-fork shaft sleeve bearing in the prior art are solved. The double-fork shaft sleeve bearing automatic press-fitting system comprises a sliding rail mechanism used for driving a sliding block clamp to move, the sliding block clamp used for positioning the bearing and a double-fork shaft sleeve, a press-fitting mechanism used for press-fitting the bearing on the double-fork shaft sleeve, and an overturning mechanism used for overturning the double-fork shaft sleeve with one end provided with the bearing in a press-fitting mode. After the bearing is pressed at one end of the double-fork shaft sleeve, the double-fork shaft sleeve is overturned through the overturning mechanism, and then the bearing is pressed at the other end of the double-fork shaft sleeve through the press-fitting mechanism. Automatic press fitting of bearings on the two sides of the double-fork shaft sleeve is achieved.
Owner:BEIJING MECHANICAL EQUIP INST
Method for producing photocatalysis nano active water and use thereof
InactiveCN101215018AEffective preventionEffective therapeuticWater/sewage treatment by irradiationUltraviolet lightsLupus erythematosus
The invention discloses a production method and purpose of photocatalysis nanometer active water. The production method comprises preparing photo-catalytic material on a solid media and immersing the photo-catalytic material in water, irradiating with ultraviolet light to lead the water to produce free radical and outputting the photocatalysis nanometer active water. The invention is used for plant protection, tap water for living, dealing recycle water, treating sewage and the like, is also capable of being utilized in medical treatment and health care. The free radical in the photocatalysis nanometer active water is capable of entering human body and animal body to directly kill bacterium, microorganism and viruses, establishing an artificial immune system to prevent and treat various diseases. The photocatalysis nanometer active water does not include any chemical composition, is nontoxic, has no harm to human body and animal body, and can be used for a long term. The invention can prevent and treat diseases by means of aerosol, injection, oral administration and target-oriented drug delivery, can cure various diseases like tracheitis, hepatitis B, HIV, lupus erythematosus, influenza and bird flu and the like which are caused by bacteria and viruses. Simultaneously, the effects of cleaning focus and preventing cancer are perfect. The production method of the photocatalysis nanometer active water is simple, low in cost, and easy to spread and use.
Owner:张金龙
Compound feed additive for pigs, as well as preparation method and application of compound feed additive
InactiveCN107712347AGood antibacterial effectIncrease feed intakeFood processingAnimal feeding stuffChemical synthesisBeta-glucan
The invention relates to a compound feed additive for pigs, as well as a preparation method and application of the compound feed additive. The feed additive comprises the following components in partsby weight: 19-33 parts of a plant extract, 5-7 parts of yeast beta-glucan, 1.52-4.06 parts of an organic trace element chelating substance and 55.94-74.48 parts of a carrier substrate. The preparation method comprises the following steps of during preparation, firstly, preparing raw materials, dividing the carrier substrate into a carrier substrate A and a carrier substrate B, screening the plantextract, then adding the screened plant extract to a mixture of the carrier substrate A with the organic trace element chelating substance, performing uniform stirring, then adding a mixture of the yeast beta-glucan and the carrier substrate B, and performing uniform stirring. The feed additive is added to a basic ration of the pigs, and the addition proportion of the feed additive to the basic ration in percentage by weight is 0.5-1.5%. Compared with the prior art, the compound feed additive disclosed by the invention has the advantages that the immunity of animals can be notably improved, the attack rate can be reduced, antibiotics and chemical synthesis medicines can be replaced, the safety of meat products is improved, the mouth feel of meat quality is improved, besides, the growth and the development of the animals can be notably promoted, and the utilization efficiency of the feed can be improved.
Owner:JINHUA AONONG BIOLOGICAL TECHNOLOGY CO LTD +2
Protein-based surfactant for carrying out cleaning care on skin and hairs and preparation method thereof
ActiveCN108143641AFacilitate synthesis reactionRealize industrial productionCosmetic preparationsConnective tissue peptidesChemistryNative protein
The invention discloses a protein-based surfactant for carrying out cleaning care on skin and hairs and a preparation method thereof. The preparation method comprises the following steps: (1) pretreating a natural protein raw material; (2) adding alkaline protease and catalase into the pretreated natural protein raw material, and carrying out enzymolysis and enzyme deactivation, thus obtaining anenzyme deactivation protein hydrolysate; (3) purifying and refining the enzyme deactivation protein hydrolysate, removing moisture, and drying, thus obtaining collagen; (4) carrying out amidation reaction on the collagen and diethanolamine by taking a microreactor as a reaction device, and generating collagen polypeptide amide; carrying out esterification reaction on the collagen polypeptide amideand lauric acid, thus preparing the protein-based surfactant. According to the protein-based surfactant and the preparation method, disclosed by the invention, the functional protein-based surfactantwhich is suitable for cleaning the skin and the hairs and for other special demands can be produced by using natural protein which can be easily abandoned or lowly utilized as a raw material, so thatthe utilization efficiency of a natural protein resource is increased.
Owner:东营市庄溶生物科技有限公司
Offset-bow centralizer device
PendingCN107130924AImprove the righting effectSmooth entryDrilling rodsDrilling casingsEngineeringFrictional resistance
The invention provides an offset-bow centralizer device. The offset-bow centralizer device comprises a centralizer body, wherein stop rings are arranged at two ends of the centralizer body, the centralizer body is in a hollow structure, and comprises a plurality of support ribs arranged uniformly circumferentially, a gap is formed between every two adjacent support ribs, the support ribs are in a structure of asymmetrical offset bow, and bow parts of every two adjacent asymmetrical offset bow structures are staggered. An offset-bow support device is added to a traditional centralizer, welding points are reduced, and an overall structure is adopted, so that the centralizer device has a high casing centralizing effect and large annulus flow area, and displacement efficiency of circulating drilling fluid can be effectively improved; when a casing enters an inclined shaft section or a horizontal section, a casing body cannot be closely attached to the bottom of a borehole, the centralizing effect is good, a friction area is reduced, and accordingly, a frictional resistance coefficient between the casing and the well wall is reduced, frictional resistance is greatly reduced, and the casing is fed into a shaft smoothly.
Owner:CHANGQING GUJING OF CNPC CHUANQING DRILLING ENG +1
Bidirectional cylinder recoiling mechanism for firework cylinder
ActiveCN101817241ANo destructive effectImprove slitting safetyPaper/cardboard wound articlesFireworksPulp and paper industryAssembly line
The invention discloses a bidirectional cylinder recoiling mechanism for a firework cylinder, which is arranged below a tube coiling mechanism and comprises a lower clutch spindle (19), primary carrier rollers (16), a paper cutting carrier roller (7) and cutters (11), wherein the lower clutch spindle (19) which can draw apart and close with the upper clutch spindle (18) of the tube coiling mechanism synchronously is arranged under the upper clutch spindle; the primary carrier rollers (16) and two secondary carrier rollers (7), which can move relatively, are arranged on two sides of the lower clutch spindle; the primary carrier rollers are axially arranged at intervals; the cutters (11) which can rotate and swing synchronously are arranged below paper cylinders (3) positioned in the intervals of the primary carriers; and the internal circumferential surface formed by the primary rollers and the two secondary rollers can support and limit the paper cylinders. Adopting bidirectional cylinder recoiling, the mechanism avoids damaging the paper cylinders. Therefore, the integrity and strength of the paper cylinders are guaranteed, the safety of paper cylinder cutting is improved, the paper cylinder cutting efficiency is improved, and the realization of the automation and assembly line work of the paper cylinder cutting can be realized easily.
Owner:浏阳市中洲机械科技有限公司
Furniture detergent composition
InactiveCN103087831ANo destructive effectImprove decontamination abilityInorganic/elemental detergent compounding agentsSurface-active detergent compositionsSodium carbonateChemistry
The invention relates to a furniture detergent composition. The composition is prepared through using 5-10 parts by weight of sodium dodecyl benzene sulfonate, 20-40 parts by weight of sodium carbonate, 8-15 parts by weight of sodium chloride, 8-15 parts by weight of sodium sulfate, 15-25 parts by weight of sodium tripolyphosphate, 8-15 parts by weight of tetrasodium pyrophosphate, 5-10 parts by weight of sodium dimethylbenzenesulfonate, 1-3 parts by weight of an essence and 50-60 parts by weight of water. The composition is prepared through uniformly mixing all the above raw materials in water. The furniture detergent composition has the advantages of strong dirt removal capability, very weak alkalinity, no destroy to the paint film of the furniture, bright paint film surface, and paint film surface protection.
Owner:周猛
Clean fracturing fluid with liquid thickening agent and preparation method thereof
InactiveCN103409128ASimple processGood compatibilityDrilling compositionActive agentFracturing fluid
The invention relates to a clean fracturing fluid with a liquid thickening agent and a preparation method thereof. The problem of dissolution of the thickening agent is one of the problem which causes that the clean fracturing fluid is difficult to widely use in the using process of the clean fracturing fluid, and most of most of viscoelastic surface active agents are generally difficult to fast dissolve under the condition of room temperature. The preparation method comprises the following steps of: mixing high-melting point unsaturated fatty acid and low-melting point unsaturated fatty acid according to the proportion of 1:(2-1):3 to prepare an unsaturated fatty acid thickening agent; preparing the mixed water solution of sodium hydroxide and potassium chloride, wherein the mass percent is respectively as follows: 0.8%-1.2% and 2.2%-3%; mixing the unsaturated fatty acid thickening agent and the mixed water solution at a ratio of 2.4:(100-3):100 under the condition of vigorous stirring to prepare a product. Compared with other clean fracturing fluids of the surface active agents, the clean fracturing fluid disclosed by the invention is more convenient in process when in use because the thickening agent is in a self liquid state and has good solubility of components. According to the invention, the adopted thickening agent is micromolecular and less in formation damage, so that the oil recovery efficiency is easier to increase.
Owner:上海圣轩生物科技有限公司
Method for feeding refined tea material into sterile packing room
InactiveCN103387067AReduce manufacturing costEnsure safetyPackage sterilisationProduction lineEngineering
The invention discloses a method for feeding a refined tea material into a sterile packing room. The method comprises the following steps: establishing a microwave sterilization channel on a partition wall between a refined tea production workshop and the sterile packing room; making workers in the refined tea production workshop put non-sterilized refined tea material boxes from the entrance, in the refined tea production workshop direction, of the microwave sterilization channel into the microwave sterilization channel; keeping the refined tea material boxes for a while for sterilizing and disinfecting; making packaging workers in the sterile packing room take the sterilized refined tea material boxes out of the exit, in the sterile packing room direction, of the microwave sterilization channel for packaging; and completing a final packaging procedure in the sterile packing room. The method is simple and convenient, and is suitable for sterilization and disinfection of tea production lines as well as sterilization and disinfection of other food production lines.
Owner:JIANGXI KEYI TEA IND CO LTD
A kind of blast furnace coal-injection combustion aid and using method thereof
ActiveCN104087692BLower ignition pointImprove combustion efficiencySolid fuelsBlast furnace detailsRare earthEconomic benefits
Owner:WUKUN STEEL
Blast furnace coal injection combustion improver as well as application and device thereof
ActiveCN103740433BSolve the adhesionSolving Dispersion ProblemsSolid fuelsBlast furnace detailsCombustionCoke
Owner:MCC CAPITAL ENGINEERING & RESEARCH +1
A novel plasmatorch and its application in methods for conversion of matter
InactiveCN1969596APromote aggregationUniform charge to mass ratioPlasma techniqueProcess efficiency improvementAlkaline earth metalPhotochemistry
The present invention relates to a novel plasmatorch (1) and to its applications within the field of chemicophysical conversion of matter. The plasmatorch (1) comprises a pair of electrodes apart from each other, a plasma arc (10) existing between the two electrodes and a collimator (14) arranged for converging the plasma arc (10). The arcing material is stored in a special storage tank and is realized by a metal vapour, preferably by the vapour of an alkali or an alkali-earth metal.
Owner:普拉斯马’05研究和开发有限公司
Lateral double-diffusion metal oxide semiconductor (LDMOS) device introducing local stress
ActiveCN102544106AImprove performanceImprove driving abilitySemiconductor devicesLDMOSElectrical resistance and conductance
The invention relates to a lateral double-diffusion metal oxide semiconductor (LDMOS) device. According to the LDMOS device, the performance is improved by using stress, poor influence is reduced, and the local stress is introduced. The invention adopts the technical scheme that: the LDMOS device introducing the local stress comprises a body substrate, wherein a well area and a drift area, which are adjacent to each other, are formed on the substrate; a source area and a drain area are respectively formed in the well area and the drift area; a gate oxide layer is grown on the surface of the well area between the source area and the drift area; a polycrystalline silicon gate is grown on the gate oxide layer; a thin film covers the surface of the source area and / or the gate; and by using the intrinsic stress of the thin film, the stress is introduced into a channel of the LDMOS device. The LDMOS device has the advantages that: an energy gap (EG) of the drift area of the device cannot be influenced; the on resistance (Ron) of the source area and the drain area of the device can be obviously reduced; a positive effect of the stress on the performance of the device is fully exerted; a negative effect of the stress on the performance of the device is reduced; and the device is particularly applicable to manufacturing of a power device.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Method for removing endotoxin in oligomeric sodium hyaluronate
The invention discloses a method for removing endotoxin in oligomeric sodium hyaluronate, and the method comprises the following steps in sequence: (1) performing raw material endotoxin limit detection; (2) dissolving the oligomeric sodium hyaluronate in water; (3) respectively adding a sodium hydroxide solid and a sodium chloride solid, and stirring; (4) adjusting the pH of the solution to neutrality; and (5) adding ethanol for precipitation, dewatering and drying to obtain oligomeric sodium hyaluronate powder. The method has the advantages of thorough treatment, simple steps and low cost, and the endotoxin content of the treated oligomeric sodium hyaluronate reaches the medical standard (less than 0.05 EU / mg).
Owner:河北常山凯络尼特生物技术有限公司
Injection mould provided with hydraulic motor thread return mechanism protection device
The invention relates to an injection mould provided with a hydraulic motor thread return mechanism protection device. The injection mould comprises an upper mould, a lower mould, a power component, a thread mold core for molding product threads, and a transmitting assembly, wherein the lower end of the thread mold core is provided with a thread bushing having a guide function in a matching way, and the thread mold core can conveniently move along the axial direction through the thread bushing; the thread bushing is fixed in the lower mould; a driven gear is fixed on the thread mold core, and linkage is realized between the driven gear and the power component by the transmitting assembly; when the mould is opened and closed, and the thread mold core reaches one of two limiting positions of the upper end and the lower end in the power transfer process, large resistance is applied to the transmitting assembly, and an upper rotating sleeve and a lower rotating sleeve which are arranged on the transmitting assembly slip and get away from the transmitting assembly, so that power is cut off in time, all the parts are prevented from being damaged or broken by vibration, the thread mold core is prevented from being very tight with a mold kernel or the thread bushing when moving up and down, the service life of the mould is effectively guaranteed, and the maintenance cost is lowered. The injection mould belongs to the technical field of mould equipment.
Owner:和动力智能科技(东莞)有限公司
Rapid fault diagnosis system for high voltage capacitive equipment
ActiveCN107728020ANo destructive effectWide range of applicationsTesting dielectric strengthCapacitanceFrequency spectrum
The invention relates to a rapid fault diagnosis system for high voltage capacitive equipment. The device is formed by a high frequency square wave generator, a high frequency square wave power amplifier, a high frequency square wave secondary boost device, a phase tracking device, an acquisition system, display equipment, control keyboard and a control system. The control system analyzes the capacitance change of a representative characteristic branch by a current absorption situation corresponding to a specific frequency point obtained by the acquisition system and establishes a frequency spectrum curve according to current absorption situations corresponding to different specific frequency points, and the fault development trends of the same type of high-voltage capacitive equipment orthe same high-voltage capacitive equipment at different times are diagnosed according to the comparison with a reference curve of the same type of high-voltage capacitive equipment. The invention provides non-destructive testing equipment for primary capacitive equipment.
Owner:STATE GRID CORP OF CHINA +2
Three-dimensional disinfection method
The invention discloses a three-dimensional disinfection method. According to the three-dimensional disinfection method, a liquid disinfectant is decomposed into fine disinfectant particles with the diameter on a level of 3-10 micrometers. A whole to-be-disinfected space is full of the fine disinfectant particles, and the fine disinfectant particles are bonded together with harmful bacteria and dust, so that the harmful bacteria and dust in the air are fully dissolved. The method can carry out dead corner-free, pollution-free and residue-free sterilization and disinfection in any enclosed space.
Owner:一扫清(上海)环境科技有限公司
Preparation method of copper indium gallium diselenide film solar battery buffer layer
InactiveCN106784076AFacilitated releaseNo destructive effectPhotovoltaic energy generationSemiconductor devicesIndiumSolar battery
The invention provides a preparation method of a copper indium gallium diselenide film solar battery buffer layer. The method comprises the following technical scheme: diethylzinc, H2S and H2O respectively serve as precursor sources of Zn, S and O; a ZnO film and a ZnS film are alternatively deposited multiply on a heated substrate through an atomic layer deposition method, so as to form a Zn (O, S) buffer layer. According to the method, the copper indium gallium diselenide film solar battery buffer layer prepared through a Zn (O, S) film through the atomic layer deposition method can be matched with a dry process preparation technology for other layers, the formed film is dense and even, is beneficial to the releasing of internal stress, and an absorption layer is not damaged during the preparation. Through the adjustment of the growth sequence and the growth thickness of ZnS and ZnO, copper indium gallium diselenide film solar battery buffer layers of Zn (O, S) films with different components can be realized, the technology is simple and practicable, the production cost is reduced, and space is saved.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
Hydraulic wedge-shaped wire clamp installer
PendingCN114069486ANo destructive effectEasy to carryApparatus for overhead lines/cablesClassical mechanicsLap joint
A hydraulic wedge-shaped wire clamp installer disclosed by the present invention comprises a wire clamp installation clamping seat and an electric hydraulic power system, the top of the wire clamp installation clamping seat is provided with an ejector rod and a hook-shaped wire clamp fixture, the ejector rod and the hook-shaped wire clamp fixture form a clamping structure for a C-shaped wire clamp, the wire clamp installation clamping seat is internally provided with a driving connection rod, one end of the driving connecting rod is connected with the ejector rod, and the other end of the driving connecting rod is connected with the electric hydraulic power system; and the electric hydraulic system comprises a hydraulic oil cylinder connected with the driving connecting rod and an electric driving handle. The hydraulic wedge-shaped wire clamp installer can replace AMP gun tools to achieve fixing operation of lead lap joint.
Owner:上海凡扬电力科技发展有限公司
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