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Epoxy plaster for repairing high-strength concrete for electric power engineering
PendingCN119639407AImprove curing integrityGood weather resistanceNon-macromolecular adhesive additivesEpoxy resin adhesivesHigh strength concreteFirming agent
The invention discloses an epoxy plaster for repairing high-strength concrete for electric power engineering, which comprises a component A and a component B. The mass ratio of the component A to the component B is (8-12): 1. The component A comprises the following components in parts by weight: 35-50 parts of bisphenol A epoxy resin, 15-25 parts of multifunctional epoxy resin, 10-15 parts of a functional diluent, 20-40 parts of filler, 1-5 parts of a coupling agent and 1-3 parts of an auxiliary agent; the component B comprises the following components in parts by weight: 45-65 parts of hydrophobic amine modifier curing agent, 20-40 parts of filler, 1-5 parts of coupling agent, 1-5 parts of adhesion promoter and 1-5 parts of assistant. The epoxy plaster is a modified high-molecular high-strength repairing and protecting material, and has the advantages of high bonding force, high temperature resistance, durability, impermeability, impact resistance, compactness, extremely high bonding force and extremely strong waterproof effect.
Owner:CHANGSHA SUOKANG NEW MATERIAL TECH CO LTD
Surface anti-corrosion composition for aluminum alloy as well as preparation method and application of surface anti-corrosion composition
PendingCN121950090Ahigh hardnessImprove wear resistanceAnti-corrosive paintsPowdery paintsGrain boundaryCorrosion resistant
The invention discloses an aluminum alloy surface anti-corrosion composition and a preparation method and application thereof.In the surface anti-corrosion composition, a WC hard phase provides the framework hardness of a coating, a Co-Cr metal phase endows the coating with good toughness, and the WC hard phase and the Co-Cr metal phase act synergistically, so that the obtained coating has excellent hardness, wear resistance and corrosion resistance; according to the surface anti-corrosion composition, rare earth powder is introduced to serve as an auxiliary, grains can be refined, grain boundaries can be purified in the coating, formation of a denser coating is promoted, an optimized Co-Cr metal phase is combined, and the corrosion resistance of the surface anti-corrosion composition is greatly improved. The long-acting corrosion resistance of the coating in severe environments such as salt mist and damp and hot environments is remarkably improved through synergism, bubbling and stripping of the coating and corrosion of a base body are effectively inhibited, and the remarkable corrosion resistance effect is achieved on the whole.
Owner:FOSHAN SANSHUIFENGLV ALUMINIUMINDUSTRY CO LTD +1
Anti-slide pile reinforcing device for geological landslide control
ActiveCN119287922Aeasy squeezeavoid damageClimate change adaptationProtective foundationSoil scienceLandslide
The invention relates to the technical field of application of anti-slide pile reinforcing tools, in particular to an anti-slide pile reinforcing device for geological landslide governance, which comprises a lifting assembly, an adjusting assembly, two rotary clamping assemblies and two fastening assemblies, a bottom groove is formed in the bottom of the lifting assembly, and ground gripping assemblies are arranged at the bottoms of four corners of the bottom groove; due to the fact that a single anti-slide pile can only fix a local small area where landslide easily occurs in the geology, the stress of the single anti-slide pile is large, and when the landslide occurs in the geology, the anti-slide piles cannot be better matched to work, and therefore two adjacent anti-slide piles can be fixed in three locking units on the fastening assembly, and the anti-slide piles can be fixed in the three locking units. According to the anti-slide pile, the connecting performance and compactness between every two anti-slide piles are higher, so that when a certain geology landslide occurs, pressure can be better dispersed between the anti-slide piles, the geological anti-slide effect of the two anti-slide piles is better, unnecessary damage to the anti-slide piles is avoided, and unnecessary economic losses are further reduced.
Owner:NATURAL RESOURCES BUREAU OF MUPING DISTRICT YANTAI CITY
Gear box with combined sealing terminal structure
ActiveCN222633787Ugood lubricationreduce lossGear lubrication/coolingClassical mechanicsStructural engineering
Owner:BEILIU BANGZE CHUANGKE HARDWARE PROD CO LTD
Long-acting organic silicon water-based antirust agent and preparation method thereof
The invention relates to a long-acting organic silicon water-based antirust agent which is prepared by the following steps: polymerizing dimethyl dimethoxy silane, ethylene glycol, triethanolamine, trimethyl ethyoxyl silane, hydroxypropyl propargyl ether and aminopropyl methyl diethyoxyl silane to prepare an antirust functional component, and matching with a proper amount of emulsifier and water to prepare the water-based organic silicon antirust agent. The prepared antirust agent product is high in adhesive force after being attached to the metal surface, and due to the hydrophobic and anti-corrosion capacity of the organic silicon chain segment, a metal surface antirust film subjected to soaking treatment in a thin coating mode is high in density and long in antirust time, the antirust effect is good in a harsh damp and hot environment, and the antirust agent product can be applied to the metal surface. And the rust-proof film can be quickly removed by adopting hot water, the cost is low, the use is convenient, and the application market is wide.
Owner:HUANGSHAN QIANGLI CHEM CO LTD
Sand casting coating capable of preventing generation of gray cast iron nitrogen holes and preparation method of sand casting coating
ActiveCN119500969Ahigh strengthImprove toughnessFoundry mouldsFoundry coresRare-earth elementMicrosphere
The invention provides a sand casting coating capable of preventing generation of gray cast iron nitrogen holes and a preparation method thereof.The sand casting coating capable of preventing generation of gray cast iron nitrogen holes comprises a base material and an additive, and the additive comprises, by mass, 15%-35% of basalt fibers, 1%-10% of zirconium oxide microspheres and 40%-50% of aluminum oxide powder; and 0.5%-1.5% of rare earth element powder. The sand mold casting coating has high high-temperature stability, strength, toughness and compactness, a compact protective film can be formed on the surface of a sand mold, and gas in the sand mold is effectively prevented from permeating into molten iron.
Owner:WEICHAI POWER CO LTD
Anti-falling silicone adhesive-free liquid crystal display module
ActiveCN222354187Uincrease elasticitystrong stickinessNon-linear opticsLiquid-crystal displayUV curing
The utility model discloses an anti-falling silicone-adhesive-free liquid crystal display module which comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid, OCA optical cement and a cover plate which are sequentially arranged from bottom to top, and the lower substrate is longer than the upper substrate and extends outwards to form a single-layer area. Buffer glue is arranged on the upper surface of the portion, located in the single-layer area, of the lower substrate, the buffer glue abuts against the cover plate, and the buffer glue is UV elastic glue. And the UV elastic glue is high in compactness, has waterproof capability and can protect the ITO circuit. The UV elastic glue is good in elasticity and low in stress, and no obvious rebound stress exists after the UV elastic glue is attached to the cover plate and pressed. Due to the adoption of the UV curing mode, molecules of the UV elastic glue are fully cured and are not separated out any more, and therefore the problem that the whole machine installation fails due to the fact that silicone oil is separated out to affect the dyne value of cover plate printing ink is solved. The UV elastic glue can be dispensed at one time, the scheme of dispensing UV glue and silicone glue twice at present is replaced, the efficiency is greatly improved, and the cost is saved.
Owner:XINLI OPTICAL RENSHOU CO LTD
Preparation method of high-purity and high-density polycrystalline kaolinite under hot isostatic pressing condition
The application discloses a high-density high-purity polycrystalline kaolinite preparation method under hot isostatic pressing conditions. –3 The steel ladle is placed in a graphite furnace cylinder body of a hot isostatic pressing high-pressure container, and a graphite sealing cover is covered on the steel ladle; argon is used as a pressure transmission medium, a multi-gradient cylinder body temperature and pressure increasing mode is adopted, the pressure in the cylinder sample bin is increased to 105.8 MPa, the temperature is increased to 800 DEG C, and the temperature and pressure are kept for 4.8 hours; a multi-gradient cylinder body temperature and pressure decreasing mode is adopted, the temperature in the cylinder sample bin is decreased to 177 DEG C, and the pressure is decreased to 71.8 MPa; finally, the pressure is released, the temperature is decreased to room temperature, and the polycrystalline kaolinite aggregate is obtained; and the technical blank of preparing a high-density polycrystalline kaolinite aggregate bulk body rich in aluminosilicate mineral experimental samples under high-temperature and high-pressure conditions is solved.
Owner:GUIZHOU NORMAL UNIVERSITY
Amino silane modified stearic acid-based concrete hydrophobic material and preparation method thereof
ActiveCN119613013Afirmly connectedGood dispersionGroup 4/14 element organic compoundsPolymer scienceStearic acid
The invention discloses an amino silane modified stearic acid-based concrete hydrophobic material and a preparation method thereof. The hydrophobic material is prepared from the following raw materials: stearic acid, a condensing agent, a reaction accelerant and amino silane, the raw materials comprise, by mass, 25-35% of stearic acid, 25-35% of a condensing agent, 20-25% of a reaction accelerator, and 10-25% of amino silane, the condensing agent activates carboxyl in stearic acid, so that stearic acid can be stably connected with amino silane more easily, stearic acid molecules can obtain better dispersibility and stability through hydrophilic groups of amino silane, and the reaction accelerator can react with the amino silane more easily. The problem of strength damage caused by non-uniform internal dispersion of the concrete due to addition of stearic acid into the concrete is solved, and meanwhile, amino silane can promote hydration of the concrete and optimize the content of various hydration products, so that the microstructure of the concrete is more uniform, inhibition of stearic acid on hydration of the concrete is counteracted, and the service life of the concrete is prolonged. The mechanical property of the concrete is guaranteed, the formula is simple, the preparation process is simplified, and the manufacturing cost is reduced.
Owner:XIAN UNIV OF SCI & TECH +1
Sand mold casting coating for preventing nitrogen porosity of gray cast iron and method for preparing the same
ActiveCN119500969Bhigh strengthImprove toughnessFoundry mouldsFoundry coresRare-earth elementMicrosphere
This invention provides a sand casting coating for preventing nitrogen porosity in gray cast iron and its preparation method. The coating comprises a base material and additives. The additives include the following components by mass percentage: 15%–35% basalt fiber, 1%–10% zirconia microspheres, 40%–50% alumina powder, and 0.5%–1.5% rare earth element powder. The sand casting coating of this invention exhibits strong high-temperature stability, strength, toughness, and density. It can form a dense protective film on the surface of the sand mold, effectively preventing gas from penetrating into the molten iron.
Owner:WEICHAI POWER CO LTD
Method for preparing high-density high-purity polycrystalline barite aggregate under hot isostatic pressing conditions
PendingCN122082110AAvoid redox reactionsGuaranteed isolationPolycrystalline material growthUltra-high pressure processesHigh densityPhysical chemistry
This invention discloses a method for preparing high-density, high-purity polycrystalline barite polymers under hot isostatic pressing conditions, wherein barite sample powder is compacted and sealed to a vacuum degree of 10. –3 The sample was placed in a steel cladding with dimensions of 55.89 mm outer diameter × 88.76 mm height × 3 mm wall thickness. The cladding was then placed inside the graphite furnace cylinder of a hot isostatic pressure vessel and sealed with a graphite cap. Using argon as the pressure transfer medium, a multi-gradient cylinder heating and pressurization method was employed to raise the temperature inside the sample chamber to 950 °C and the pressure to 112.5 MPa. This pressure and temperature were maintained for 6.0 hours. A multi-gradient cylinder cooling and depressurization method was then used to lower the temperature inside the sample chamber to 178 °C and the pressure to 71.1 MPa. The pressure was then released and the sample was cooled to room temperature to obtain a polycrystalline barite polymer. This method filled the technical gap in the preparation of bulk sulfate experimental samples of high-density polycrystalline barite polymers under high temperature and high pressure conditions.
Owner:GUIZHOU NORMAL UNIVERSITY
Nano hydrogen-resistant internal coating for natural gas pipeline and preparation method of nano hydrogen-resistant internal coating
PendingCN119530911AExcellent hydrogen resistanceImproved hydrogen barrier performanceElectrolytic inorganic material coatingHydrogen atomElectrochemistry
The invention discloses a nano hydrogen-resistant internal coating for a natural gas pipeline and a preparation method. The nano hydrogen-resistant internal coating comprises a substrate material and nano particles doped in the substrate material, the substrate material is selected from an oxide or chloride taking nickel as a substrate; the nano particles doped in the substrate material comprise SiC nano particles, ZrO2 nano particles and Si3N4 nano particles; and the Ni-ZrO2 / SiC / Si3N4 composite nano hydrogen-resistant inner coating is formed. According to the nanometer hydrogen-resistant internal coating, an optimal plating solution formula is developed based on an electrochemical deposition method, the nanometer hydrogen-resistant internal coating with good hydrogen-resistant performance and high compactness for the natural gas pipeline is prepared by continuously optimizing process parameters, contact between hydrogen and the pipeline is physically isolated, damage of hydrogen atoms to the pipeline is eliminated, and the hydrogen-resistant performance of the hydrogen-doped pipeline is improved; the problems that a hydrogen-doped natural gas pipeline is low in hydrogen doping proportion and high in failure risk are solved.
Owner:PETROCHINA CO LTD
Preparation method of konjac glucoside-based hydrophobic biomass film
The application discloses a preparation method of konjac glucoside-based hydrophobic biomass film, and comprises the following steps: S1, purification: eluting konjac powder, drying, grinding and screening to obtain konjac glucoside; S2, modification: fully stirring and mixing the konjac glucoside obtained in the step S1 with an ethanol solution to configure a homogeneous solution, adding a sodium hydroxide solution to carry out a deacetylation reaction, and obtaining deacetylated konjac glucoside; and S3, film preparation: blending the deacetylated konjac glucoside with agar, pullulan and glycerol in a solvent, heating and stirring to form a film solution, removing bubbles, and drying to obtain the konjac glucoside-based hydrophobic biomass film formed by the deacetylated konjac glucoside, agar and pullulan; the konjac glucoside-based hydrophobic biomass film prepared by the method has good hydrophobic performance and mechanical performance, can help to reduce the dependence on fossil energy, promote the development of circular economy, and make contributions to environmental protection and sustainable development.
Owner:FUZHOU UNIV
Emulsifier for emulsifying SBS modified asphalt and application thereof
The invention discloses an emulsifier for emulsifying SBS (styrene-butadiene-styrene) modified asphalt and application of the emulsifier. The freezing point of the emulsifier for emulsifying the SBS modified asphalt is 15-17 DEG C, and the molecular structural formula is # imgabs0 #. Wherein R1 is composed of a mixed octadecyl unsaturated alkyl group containing one, two and three double bonds and a saturated alkyl group containing 16 and 18 carbons, X is O or NH, R2 is a straight chain C3H6, M is N or NH, R3 is a branched chain C3-9H7-19O1-3, R4 is hydrogen or a branched chain C3-6H7-13O1-2, R3 and R4 are the same or different, the residual amount on a sieve of emulsified asphalt obtained by emulsifying SBS modified asphalt is 0, the adhesion of an aggregate material is 100%, and the viscosity of the aggregate material is 100%. The water-proof and anti-stripping coating has the advantages that the water-proof and anti-stripping coating has good water-proof performance and anti-stripping performance in actual road maintenance and newly-built road surface application, and the service life of a road can be prolonged by the aid of the water-proof and anti-stripping coating.
Owner:QINONG CHEM TECH (SHANGHAI) CO LTD
Planetary gear low-speed motor
ActiveCN222356131UReduce output speedHigh output torqueMagnetic circuitMechanical energy handlingLow speedGear wheel
The utility model discloses a planetary gear low-speed motor, which comprises an outer rotor structure, a stator structure, a connecting frame, a first shaft, a reduction gearbox body, a planetary gear set and a second shaft, the connecting frame is embedded on the reduction gearbox body, the stator structure is installed on the connecting frame, the first shaft is rotatably installed on the connecting frame, and the second shaft is rotatably installed on the first shaft. The outer rotor structure is installed in the reduction gearbox body and connected with the outer rotor structure, the planetary gear set is installed in the reduction gearbox body, the first shaft is connected with the planetary gear set, and the second shaft is connected with the planetary gear set. An outer rotor mode is adopted, the speed reduction box body and the stator structure are connected through the connecting frame, so that the speed reduction box body can be effectively integrated on the speed reduction device, output of the first shaft can be output through the second shaft after speed reduction is conducted through the planetary gear set, and the speed reduction effect is good. Therefore, a small output rotating speed and a large output torque are obtained. Therefore, the utility model has strong compactness, and can be suitable for small household appliances and other products with smaller sizes.
Owner:HUIZHOU FEISHUN TECH CO LTD
Preparation method of high-density and high-densification polycrystalline trachyandesite under high temperature and high pressure conditions
PendingCN122108714AAvoid redox reactionsGuaranteed isolationPreparing sample for investigationHigh densityGraphite
The application discloses a preparation method of high-density high-densification polycrystalline trachyandesite under high-temperature high-pressure conditions. –3 The application discloses a preparation method of high-density high-densification polycrystalline trachyandesite under high-temperature high-pressure conditions, which comprises the following steps: completely sealing trachyandesite sample powder in a ladle cover with a vacuum degree of 10 –3 Pa; placing the ladle cover in a graphite furnace cylinder body of a high-pressure container of a hot isostatic pressing device, covering a graphite sealing cover; taking argon as a pressure transmission medium; adopting a multi-gradient hot isostatic pressing forming process of first increasing pressure and then increasing temperature to increase the temperature in the cylinder body sample bin to 950°C and the pressure to 91.5 MPa, and keeping constant temperature and constant pressure for 6.8 hours; adopting a multi-gradient cylinder body temperature and pressure decreasing mode to decrease the temperature in the cylinder body sample bin to 176°C and the pressure to 58.7 MPa; and finally, decreasing the pressure and temperature to room temperature to obtain a polycrystalline trachyandesite aggregate sample; and the technical blank of preparing a large bulk experimental sample of high-densification polycrystalline trachyandesite aggregate under high-temperature high-pressure conditions is solved.
Owner:GUIZHOU NORMAL UNIVERSITY
Distributing valve
The utility model discloses a material distributing valve. The distributing valve comprises a valve body and a switching mechanism, the valve body is provided with a feeding channel and two discharging channels, the two discharging channels communicate with the feeding channel and are symmetrically arranged in the feeding direction of the feeding channel, and each discharging channel is provided with a piston assembly. The piston assembly is arranged at an inlet of the discharging channel so as to open or close the discharging channel. The switching mechanism comprises a rotating body, and the rotating body is installed at an outlet of the feeding channel through a rotating shaft arranged in the direction orthogonal to the feeding direction of the feeding channel. Wherein the rotary body is provided with a cam part, and in the reciprocating rotation process of the rotary body, the cam part at least abuts against the piston assembly in one discharging channel, so that at least one discharging channel is closed. The utility model has the advantages of compact structure and strong practicability.
Owner:SHENZHEN BROADCARE MEDICAL ROBOT CO LTD
Anti-slag-blocking structure and method for semi-waste boiler gasification furnace
PendingCN119529905ANot easy to cause slag blockageGuaranteed uptimeCombustible gas productionThermodynamicsSlag
The invention belongs to the technical field of gasification furnaces, and relates to an anti-slag-blocking structure and method for a semi-waste boiler gasification furnace, the anti-slag-blocking structure for the semi-waste boiler gasification furnace comprises a gasification furnace body, and a waste boiler section slag discharging pipe, a connecting pipe and a chilling section cooling pipe which are respectively arranged in the gasification furnace body and are sequentially communicated from top to bottom; the vertical section of the waste boiler section slag discharging pipe is of a big-end-up conical structure, the length of the conical wall of the waste boiler section slag discharging opening is adjusted according to the inclination angle of the waste boiler section slag discharging opening, the inner diameter of the water cooler in the waste boiler section is maintained to be 0.4074-0.4088 times of the inner diameter of the semi-waste boiler gasification furnace body, and the slag blocking phenomenon of the waste boiler section slag discharging opening and the water cooler in the waste boiler section is reduced. According to the structure provided by the invention, the slag discharging channel is not easy to block slag, and stable operation of equipment and production is ensured.
Owner:YANZHOU COAL MINING YULIN NENGHUA CO LTD
Post-pouring construction method for slope foundation post-pouring belt
PendingCN119221526APouring evenlyStrong compactnessArtificial islandsUnderwater structuresArchitectural engineeringPipe
The invention relates to the technical field of post-cast strip pouring, in particular to a post-cast construction method for a slope foundation post-cast strip. Comprising the following steps that S1, a plurality of concrete slabs and a plurality of pouring pipes are prepared; S2, the position of a post-pouring belt is cleaned; s3, the concrete slab prepared in the step S1 is installed at the position of a post-cast strip; s4, the pouring pipes prepared in the step S1 are installed on a concrete plate at the top of a shear wall of the post-cast strip and each slope-shaped part of the post-cast strip, and all the installed pouring pipes communicate with the interior of the post-cast strip; s5, integral reinforcement is conducted; s6, earthwork backfilling is conducted; s7, concrete pouring is conducted on the post-cast strip through the multiple pouring pipes installed in the step S4; s8, the poured post-cast strip is maintained; the shear wall and the slope-shaped part are poured alternately, it is guaranteed that concrete in the slope-shaped part is poured evenly, and compactness is high.
Owner:CNNC HUACHEN CONSTR ENG CO LTD
Crosslinking type polyaspartic acid vapor phase corrosion inhibitor and product thereof
PendingCN119243163Aimprove bindingStrong compactnessNon-macromolecular organic additionPaper coatingMetallic materialsCross linker
Sodium polyaspartate is compounded with benzotriazole, sodium benzoate and sodium citrate to prepare gas-phase corrosion inhibition liquid of the gas-phase corrosion inhibitor, the gas-phase corrosion inhibition liquid is coated on the surface of a base material, and polyvalent metal positive ions in a cross-linking agent solution are cross-linked to form a gel layer; and drying to obtain a gas-phase rust-proof product which is used for rust prevention of metal materials. According to the technical scheme, a polyaspartic acid network structure is formed on the surface of the gas-phase anti-rust product, the slow release effect can be achieved without other loading materials, the crosslinking density is large, compactness is high, water vapor can be prevented from penetrating through the gas-phase anti-rust product to reach internal metal materials, and therefore the gas-phase corrosion inhibition capacity is improved.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY