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35results about How to "Good anti-leakage" patented technology
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Construction heat-insulating mortar
InactiveCN101279833AImprove adhesionImprove toughnessSolid waste managementCalcium formateMaterials science
The invention belongs to the building material technique field, in particular relates to a building thermal insulating mortar. The building thermal insulating mortar is characterized in that the mortar is composed of dry powder and water, the dry powder and water are present in a weight ratio of 1:1.3, when in use, the dry powder is added to the water and agitated evenly; and the dry powder is mixed by materials of modified cement, modified fly ashes, a re-dispersible latex powder, wood fibers, polypropylene fibers, calcium formate, hydroxypropyl methylcellulose, hydrophobic agent, multi-functional auxiliary agent and modified expanded perlite, materials of the dry powder include: 500 parts of modified cement, 160 parts of modified fly ashes, 25 parts of re-dispersible latex powder, 3 parts of wood fibers, 1 part of polypropylene fiber, 5 parts of calcium formate, 6 parts of hydroxypropyl methylcellulose, 1 part of hydrophobic agent, 3 parts of multi-functional auxiliary agent and 300 parts of modified expanded perlite by weight. The building thermal insulating mortar has advantages of strong heat preservation, firm bonding with wall bodies, compression resistance, superior tensile performance, good weathering resistance, environmental protection, and excellent waterproofing, anti-cracking and shedding prevention properties.
Owner:QIUSHI HUBEI PAINT
Hybrid fabric grid made from carbon fiber and basalt fiber
InactiveCN101666137AHigh strengthImprove toughnessCarbon fibresBuilding reinforcementsCarbon fibersReinforced concrete
The invention relates to a hybrid fabric grid made from carbon fiber and basalt fiber, belonging to the field of the building material. The hybrid fabric grid is characterized by being made through weaving the carbon fiber and the basalt fiber in a staggered arrangement way, wherein each stand of carbon fiberfiber is divided into two bunches and each stand of basalt fiber is divided into two bunches, and the two bunches of carbon fiberfiber and the two bunches of basalt fiber are intersected and superposed alternatively to form grid nodes. The high-modulus fiber and the low-modulus fiber are woven into the grid according to different characteristics, and then the grid is laid in concrete to form the hybrid fabric grid reinforced concrete material. The hybrid fabric grid is much cheaper thecarbon fiber grid, and the hybrid fabric has definite bearing direction and can obviously improve the tensile strength, the impact resistance and the ductility of the concrete. The hybrid fabric gridhas better crack resistance, bendability, shock resistance, fatigue durability, waterproofness, high temperature resistance, leakage resistance and low cost, is electrically isolating and can be cutrandomly.
Owner:EAST CHINA JIAOTONG UNIVERSITY
Epoxy resin waterproof material and preparation method thereof
InactiveCN102775798AImprove waterproof performanceGood anti-leakageBuilding insulationsEpoxyAging resistance
The invention discloses an epoxy resin waterproof material and a preparation method thereof. According to the invention, petroleum asphalt is used as a base material, then an epoxy resin, a filler and other auxiliary agents are added, and the above-mentioned materials are subjected to extrusion, calendering and molding so as to prepare the epoxy resin waterproof material. The epoxy resin waterproof material provided by the invention has a great number of excellent comprehensive economic and technical characteristic indicators such as excellent water resistance, seepage resistance, weatherability, high tensile strength, high elongation percentage, aging resistance, strong adaptability to deformation, a wide temperature adaptation range, strong and high bonding performance, a long service life, easy construction and low cost, and can be used in waterproof projects like passenger dedicated line bridge deck concrete, subways, roads, ports and wharfs and large-scale underground projects.
Owner:天津市耀新科技发展有限公司
Suction liquid feeding electronic cigarette
ActiveCN104544565AGood fluid regulationImprove thermal efficiencyTobacco devicesHeating efficiencyMouth piece
The invention relates to a suction liquid feeding electronic cigarette. The suction liquid feeding electronic cigarette comprises a shell, an oil storage bin, a heating body, a cigarette holder, a one-way valve, a heating body wire and a battery. The suction liquid feeding electronic cigarette is characterized in that a separating plate is arranged to divide the electronic cigarette into a positive air pressure area and a negative air pressure area. Two holes including an air hole and an oil hole are formed in the separating plate; one end of the air hole is close to the cigarette holder, and the other end of the air hole is connected with the atmosphere through a shell; and the end, close to the cigarette holder, of the oil hole is connected with the other end, close to a heating body, of the oil hole through the one-way valve and the oil storage bin. When smoking is carried out, tobacco liquid is injected into the heating body due to air differential pressure to generate smoke. The suction liquid feeding electronic cigarette has the beneficial effects that the good heat efficiency is obtained; the good tobacco liquid feeding control is achieved; the good seepage prevention is achieved; and the good cost performance is achieved.
Owner:戴伟
Surface mounting type diode
PendingCN108461615AImprove wear resistanceExtended service lifeSemiconductor devicesOptical propertySurface mounting
The invention relates to a surface mounting type diode and particularly relates to a chip mounting type diode used for visible light / infrared light / ultraviolet light emission pipe products and photoelectric receiving pipe products. The chip mounting type diode comprises a plastic shell, a chip, a packaging colloid, metal leads and at least one metal lead frame, wherein a concave reflection grooveis formed in the plastic shell through injection molding, the chip is arranged at the bottom of the reflection groove, and the packaging colloid is arranged above the reflection groove and seals the reflection groove. The surface mounting type diode provided by the invention improves the light emission efficiency and the photovoltaic conversion efficiency, solves the problem of poor optical properties caused by adopting a planar structure for packaging in the prior art, and simultaneously can greatly reduce the energy consumption.
Owner:HEYUAN FUYU OPTOELECTRONICS TECH CO LTD
Ultrahigh-safety ceramic wire and cable design and method
ActiveCN111816358AHigh mechanical strengthHigh strengthClimate change adaptationInsulated cablesLow smoke zero halogenEngineering
The invention discloses an ultrahigh-safety ceramic wire and cable design and method. The invention relates to the technical field of ceramic electric wires and cables. A ceramic cable main body and an easy-to-disassemble installation mechanism are included, the upper and lower sides of the outer wall of the ceramic cable main body are both provided with wear-resistant protection mechanisms, and the easy-to-disassemble installation mechanism is located in the middle of the outer wall of the ceramic cable main body. According to the ultrahigh-safety ceramic wire and cable design and method, anoxygen barrier layer, a steel wire rope, a ceramic layer and an insulating layer are arranged; the overall toughness of the ceramic wire cable can be effectively enhanced through the steel wire rope;the ceramic layer can effectively guarantee the fireproof and insulating functions, the insulating layer is prepared through low-smoke halogen-free irradiation crosslinking, the insulating layer can effectively separate an external object from the copper core, an electric leakage phenomenon can be effectively avoided, and stable utilization of the ceramic wire and cable can be effectively guaranteed.
Owner:贵阳中安科技集团有限公司
Prestressed concrete cylinder pipe preparation method
InactiveCN109808048AStrong water repellencyOil film thicknessCeramic shaping plantsAuxillary shaping apparatusEpoxyResin coating
The invention relates to the technical field of building materials, in particular to a prestressed concrete cylinder pipe preparation method. The method comprises the following operating steps including bell and spigot manufacturing; steel cylinder manufacturing; hydrostatic test performing; welding repair; pipe core forming; pipe core maintenance; surface mending; pipe core water curing; wire winding; guniting; appearance mending; and finished product stacking. According to the prestressed concrete cylinder pipe preparation method, the inner wall of a mould shell and the outer wall of a mouldinner core are coated with a concrete parting agent, the parting agent is high in hydrophobicity, oil film is thick, and the good double effects of good demoulding performance and expense saving areachieved; air can be isolated through an arranged outer epoxy resin coating layer and an inner epoxy resin coating layer, inside metal materials are protected, and meanwhile, the characteristics of compactness, water resistance, good leakage resistance and high strength are achieved; and through arranged reinforcing ribs, the concrete pipe surface bearing capability and impact strength are improved, and effective results are achieved by means of the lowest economic cost.
Owner:云南省楚雄恒基管道工业有限责任公司
Flame-retardant polyurethane nano-cellulose reinforced material and preparation method thereof
InactiveCN112480357AImprove adhesionHigh modulusFireproof paintsLamination ancillary operationsEpoxyPolymer science
The invention discloses a flame-retardant polyurethane nano-cellulose reinforcing material and a preparation method thereof. The flame-retardant polyurethane nano-cellulose reinforcing material comprises 60-80 parts of isocyanate raw material, 80-120 parts of oligomer polyol raw material, 20-35 parts of a foaming agent, 2-3 parts of a foam stabilizer, 3-5 parts of an initiator, 2-4 parts of a chain extender, 1-3 parts of a cross-linking agent, 10-15 parts of a plant raw material, 5-10 parts of an epoxy resin, 8-13 parts of an inorganic flame retardant, 25-30 parts of a flame-retardant filler,and 5-6 parts of an accessory ingredient. According to the invention, the plant raw material and the epoxy resin are added into the formula, the plant raw materials can be used for preparing the nano-cellulose, and the nano-cellulose has excellent charring capacity and reinforcing effect, can improve the flame-retardant effect of the polyurethane foam board, and has excellent mechanical properties; and the epoxy resin has excellent bonding performance, high modulus, high strength and thermal stability, and can also play a role in 'forced mutual dissolution' and 'synergistic effect' with the nano-cellulose, so that the stability is improved, and the performance complementation is realized.
Owner:QUZHOU UNIV
Road slope strengthening treatment method based on plant stem and root system grouting
ActiveCN107023024AImprove shear resistanceExtended use timeBuilding constructionsExcavationsEpoxyPlant stem
The invention belongs to the technical field of road slope strengthening, and relates to a road slope strengthening treatment method based on plant stem and root system grouting. The method comprises the following steps that firstly, gramineae plants with the developed root systems and the powerful growth capability are sown to a slope surface of a road slope; secondly, after the gramineae plants naturally wither, the branches at the upper portions of the gramineae plants are shorn away, and gramineae plant stems are reserved; thirdly, grouting liquid is prepared, the density of the grouting liquid ranges from 1.2 g / cm<3> to 2.0 g / cm<3>, and the grouting liquid is the mixture of epoxy resin and polyamide resin; fourthly, the grouting liquid is injected into the root systems of the gramineae plants through gramineae plant conduits of the gramineae plant stems; and fifthly, the unearthed position of the gramineae plant stems on the ground serves as the circle center, and the grouting liquid is injected in the circle with the radius ranging from 5 cm to 10 cm. The provided road slope strengthening treatment method based on plant stem and root system grouting is low in cost, green, environment-friendly, high in reliability, capable of facilitating curing, high in adhering force and good in mechanical performance.
Owner:HUBEI UNIV OF TECH
Pipeline system capable of resisting leakage, heat and corrosion and construction method of pipeline system
ActiveCN105889651ANot easy to formLong application lifeJoints with sealing surfacesRigid pipesCouplingHot melt
The invention discloses a pipeline system capable of resisting leakage, heat and corrosion and a construction method of the pipeline system, and belongs to a composite pipeline system. A steel-plastic composite pipe comprises an inner layer, an intermediate layer and an outer layer; the inner layer is a polyethylene pipe manufactured by the radiation crosslinking process, the outer layer is a thin-wall steel pipe, and the inner and the outer layers are bonded together through hot melt glue; an outer pipe turnbuckle is arranged on the main body of a special pipe joint and matched with a lock nut to form matching parts. The outer surface of a sleeved pipe head extending from a main body turnbuckle is a cone-shaped seal platform, the composite pipe sleeves the seal platform after flaring, the lock nut sleeves the composite pipe, a thread on the inner surface of the lock nut enables the lock nut to be connected with the main body turnbuckle, and an inner cone tubular lock platform and an outer cone tubular lock platform which extend from the threaded end of the main body turnbuckle are tightly pressed to form tight coupling on the composite pipe. The pipeline system, which is formed by virtue of the combination of the modified steel-plastic composite pipe and a special pipe connection device, delivers the benefit of long-lasting resistance to heat and leakage, and is convenient in construction and rich in decorative beauty.
Owner:张天林
Chlorinated polyethylene waterproof coiled material and its preparation method
The invention discloses a chlorinated polyethylene waterproof coiled material and its preparation method. The material adopts chlorinated polyethylene as the base material, and thermoplastic polyolefin, a filling agent and other auxiliaries are also added. An extrusion calendaring molding method is employed to prepare the chlorinated polyethylene waterproof coiled material, which has multiple excellent comprehensive economic and technical performance indicators of excellent waterproofness, leakage resistance and weatherability, high tensile strength, high elongation, aging resistance, strong deformation adaptability, wide temperature adaptation range, high binding strength, long service life, easy construction and low cost, etc., thus being able to be used in bridge floor concrete of passenger dedicated lines, subways, roads, ports and wharfs, large underground projects, and other waterproof projects.
Owner:天津市耀新科技发展有限公司
Vibre anti-permeation cracking-resistant concrete
The present invention relates to a fibre impervious crack-resisting concrete, and its ingredients and admixing quantities are: 1. general Portland cement; (2). medium sand; (3) stone; (4) water-reducing agent; (5) slag powder, internal admixing quantity is 5%-50%, optimum admixing quantity is 20%-30%; (6) flyash, internal admixing quantity is 5%-50%, optimum admixing quantity is 40%-50%; (7) water-proofing agent, internal admixing quantity is 0.5%-5.0%, optimum admixing quantity is 2.5%; (8) expansion agent UEA, internal admixing quantity is 6%-12%, optimum admixing quantity is 8%-10%, one selected from water-proofing agent and expansion agent can be admixed; and (9) polypropylene fibre, external admixing quantity is 0.1-2.0 kg / cu.m, optimum admixing quantity is 1Kg / cu.m.
Owner:BEIJING CHENGCHANG COMMOIDTY CONCRETE JOINT
Carbon fiber reinforced resin powder material
The invention discloses a carbon fiber reinforced resin powder material. The material comprises main raw materials and auxiliary materials; the main raw materials comprise, by mass, 50-60 parts of polyacrylonitrile carbon fibers, 40-50 parts of asphalt-based carbon fibers, 30-40 parts of IM8 carbon fibers, 10-15 parts of phenolic resin, 12-15 of epoxy resin and 13-15 parts of thermoplastic resin;and the auxiliary materials comprise, by mass, 5-8 parts of an antioxidant and 3-5 parts of a catalyst. The epoxy resin has strong adhesion, normal temperature operability, simple constructability andother good workability, and the thermoplastic resin has heat softening and cold hardening performances, so the main raw materials can improve the high temperature resistance and the corrosion resistance, and make the powder material have excellent thermodynamic performances; and the raw materials have low prices, so the powder material can be massively produced, thereby the practicality of the carbon fiber reinforced resin powder material is improved.
Owner:珠海诚然科技服务有限公司
A special material used for cables with high shock resistance and prepared from recovered waste polyethylene and a preparing method thereof
InactiveCN106496745AHigh tensile strengthHigh elongationPlastic/resin/waxes insulatorsAnhydrous Calcium SulfateShock resistance
A special material used for cables with high shock resistance and prepared from recovered waste polyethylene and a preparing method thereof are disclosed. The special material includes 50-75 parts of a recovered cable material as a base, and 5-10 parts of chlorinated polyethylene, 5-10 parts of an ACR shock-resistant modifier, 5-10 parts of coloring carbon black, 10-30 parts of anhydrous calcium sulfate having a size of 400 meshes and 2-5 parts of an auxiliary agent are added. The special material is prepared through steps of extrusion, wire drawing, water cooling and granulation. The special material has a plurality of excellent comprehensive economic and technical performance indexes, such as excellent thermoplastic elastomer performance, waterproofness, seepage resistance, good weatherability, high tensile strength, high shock resistance, a high elongation percentage, a high friction coefficient, high deformation adaptability, a wide temperature adaptation range, using convenience, long service lifetime, easy construction and a low cost. Considerable economic benefit and social benefit can be generated. More importantly, waste is turned into things of value, energy is saved, and the special material and the method are low in carbon and environment friendly.
Owner:HUIZHOU JUCHUANG HUIZHI TECH DEV
Synchronous testing device and method for coal adsorption and desorption deformation anisotropy
PendingCN111829917AWater resistantImprove water resistanceElectrical/magnetic solid deformation measurementMaterial analysisEpoxyWater baths
The invention discloses a synchronous testing device and method for coal adsorption and desorption deformation anisotropy. The method is characterized in that on the basis of experimentally researching coal adsorption and desorption deformation through an existing method, an experimental device composed of a nitrogen cylinder, a helium cylinder, an electromagnetic valve, a pressure sensor, a vacuum pump, a vacuum gauge, a constant-temperature water bath box, an adsorption and desorption tank, a desorption and gas collection device, a resistance strain gauge, a strain gauge and a computer is adopted, an experimental coal sample is put into the adsorption and desorption tank, the electromagnetic valve, the pressure sensor and the constant-temperature water bath box are used for controlling different pressure and temperature conditions, epoxy resin adhesive ensures a sealed environment, a strain data acquisition system is used to carry out anisotropy measurement on desorption deformationof a coal body under different conditions, and an experiment result is automatically recorded by a data processing system. The operation process is trouble-saving and labor-saving, no redundant pipeline connection exists, the loss of excessive gas in the pipeline is avoided, and the device and the method can be suitable for synchronously measuring the stress strain of the coal body in all directions under different air pressure and different temperature conditions in real time.
Owner:HENAN POLYTECHNIC UNIV
An environmentally friendly polymer composite self-repairing waterproof material and its preparation method
ActiveCN109501413BLow costImprove leak resistanceEpoxy resin coatingsRubber layered productsEpoxyFiber
Owner:SUZHOU UNIV OF SCI & TECH +1
E-cigarette with suction liquid supply
ActiveCN104544565BGood fluid regulationImprove thermal efficiencyTobacco devicesMouth pieceDifferential pressure
Owner:戴伟
A Passive Self-Control Liquid Flow Meter
ActiveCN105953846BPrevent pryingImprove closureVolume/mass flow by mechanical effectsVolume meteringRatchetGear wheel
The invention relates to a passive self-control liquid flow meter, the limiting rotating shaft of the quantitative mechanism is fixed on the rotating shaft gear and connected with the quantitative spring, the rotating shaft gear is connected with the combined ratchet, and the combined ratchet is connected to drive the transition gear; the positioning control mechanism The positioning wheel is fixed on the limit shaft, the positioning wheel has a positioning groove, and the closing plate is provided with a positioning block, and the positioning block cooperates with the positioning groove to control the opening and closing of the closing plate; Valve cavity, the opening of the inner valve cavity is in the longitudinal direction, the closing plate is closed with the opening of the inner valve cavity, the closing plate is fixed in the watch body and can rotate, the return spring is arranged outside the cavity of the inner valve cavity, and the return spring is connected with the closing plate. Since there is an inner valve cavity in the meter body, the closing plate is arranged horizontally at the inner valve cavity opening inside the meter body, and the closing plate cannot be seen from the liquid inlet of the flow meter at all, which prevents the artificial flow from the side of the liquid inlet. To pry open the closing plate, and strengthen the sealing effect better, so it has a good effect of preventing water leakage.
Owner:ZHEJIANG ZHONGSHUI INSTR
A new type of reinforced concrete drainage pipe and its manufacturing method
InactiveCN104197129BPrevent water leakageImprove uniformitySleeve/socket jointsCoatingsReinforced concreteRebar
The invention discloses a novel reinforced concrete drainage pipe and a manufacturing method thereof. For the existing problem in the reinforced concrete drainage pipeline, the invention provides the key technology for manufacturing a novel reinforced concrete pipe in the following three aspects that: a novel anti-corrosion measure and a port type are used against the environmental factors to improve durability of the pipeline and tightness of the port; with regard to the pipeline itself, formulation of reactive powder concrete (RPC) suited for a drainage pipe is employed as the raw material, so that the strength is higher, the stability is better and the structure is more compact to block the possibly formed permeation passage; and the pipe is cheaper and lighter. The method fundamentally improves the basic performance of the reinforced concrete drainage pipeline. Due to the reduced weight and tighter port, the standard length (2.5 m) of the drainage pipeline is lengthened to 4-6 m.
Owner:深圳市三新水环境科技有限公司
Environment-friendly and corrosion-prevention coating for building and preparation method thereof
InactiveCN106833239AGood weather resistanceIncreased durabilityAntifouling/underwater paintsPaints with biocidesPolypropylenePolymer chemistry
The invention provides environment-friendly and corrosion-prevention coating for buildings and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing silanol modified acrylate-styrene-acrylic emulsion; and secondly, adding polypropylene wax emulsion, pigments and fillers, a corrosion-prevention agent and an auxiliary agent to prepare the coating. The emulsion is the silanol modified acrylate-styrene-acrylic double-component emulsion; the silanol modified emulsion is a film forming substance, and the weather resistance, durability and elasticity of the coating are remarkably improved; the double-component emulsion is used as the film forming substance of a corrosion-prevention material, has the characteristics of good denseness, water resistance and anti-leakage performance, high strength and the like, and also has more excellent adhering property, oil resistance and anti-ageing performance; furthermore, the corrosion-prevention agent is also added into the system so that the corrosion-prevention performance of the coating is improved and the coating can resist mist fog for 3500 h and is not foamed and rusted; and moreover, the polypropylene wax emulsion with special anti-pollution factors is added so that the prepared coating has an obvious anti-pollution effect.
Owner:FOSHAN JUCHENG BIOCHEM TECH RES & DEV CO LTD
Special high-transparency and high-impact-resistance cable material prepared from recycled waste polyethylene
InactiveCN106750725AHigh tensile strengthHigh elongationPlastic/resin/waxes insulatorsAnhydrous Calcium SulfateEnergy conservation
A special high-transparency and high-impact-resistance cable material prepared from recycled waste polyethylene is prepared from 50-75 parts of recycled cable materials serving as a base stock, 5-10 parts of an MBS impact modifier, 5-10 parts of an ACR impact modifier, 5-10 parts of coloring carbon titanium dioxide, 10-30 parts of 400-mesh anhydrous calcium sulfate and 2-5 parts of an auxiliary. The special modified cable material is prepared with a method including steps of extrusion, drawing, water cooling and granulation. The special modified cable material prepared from the recycled waste polyethylene has multiple excellent comprehensive economic and technical performance indexes such as excellent thermoplastic elastomer performance, water-proof performance, leaking resistance, weather resistance, high tensile strength, high impact resistance, high elongation, large friction coefficient, high deformation adaptability, wide temperature adaptation range, convenience in use, long service life, easiness in construction, low manufacturing price and the like and can create considerable economic and social benefits, more importantly, waste can be turned into wealth, and the cable material is energy-saving, low-carbon and environment-friendly.
Owner:HUIZHOU JUCHUANG HUIZHI TECH DEV
Artificial honeycomb and its preparation method
The invention relates to the technical field of agricultural product breeding devices, in particular to an artificial honeycomb and a preparation method thereof. The artificial honeycomb includes a frame, and a honeycomb cell composed of a plurality of regular hexagonal columnar honeycomb cells is arranged in the frame, and the honeycomb cell is integrally molded by epoxy resin. Through the above technical solution, the artificial honeycomb provided by the present disclosure can solve the problem of poor structural stability of the honeycomb in the prior art.
Owner:叶祎
A road slope reinforcement treatment method based on plant stem and root grouting
ActiveCN107023024BImprove shear resistanceExtended use timeBuilding constructionsExcavationsEpoxyPlant stem
Owner:HUBEI UNIV OF TECH
A prestressed steel cylinder concrete pipe
ActiveCN112032418BStable structure and performanceHigh compressive strengthSleeve/socket jointsRigid pipesCompressive resistancePre stress
The invention discloses a prestressed steel cylinder concrete pipe, which comprises a steel cylinder main body, a protective inner layer is poured inside the steel cylinder main body, and a prestressed high-strength steel wire is circumferentially wound around the outer surface of the steel cylinder main body. The outer edges of the prestressed high-strength steel wires are in contact with each other, the outer surface of the main body of the steel cylinder is poured with a protective outer layer, and the prestressed high-strength steel wires are located in the outer protective layer, and both ends of the outer surface of the main body of the steel cylinder are opened with a A connection groove, and a socket steel ring and a socket steel ring are respectively welded in the two connection grooves, and the outer surface of the socket steel ring is clamped with two sealing ring main bodies. A prestressed steel tube concrete pipe according to the present invention has stable structural performance, improves compressive strength, pipe body impermeability performance, joint sealing performance and pipeline anti-ground settlement and anti-seismic performance, and can not only be used as a water diversion pipeline, It can also be used as an urban pipe gallery, with various functions, and achieves effective results with the lowest economical cost.
Owner:浙江巨龙管业科技有限公司
Passive automatic-control liquid flowmeter
ActiveCN105953846APrevent pryingImprove closureVolume/mass flow by mechanical effectsVolume meteringAutomatic controlPosition control
The invention relates to a passive automatic-control liquid flowmeter. A limiting rotary shaft of a quantification mechanism is fixed on a rotary gear and connected with a quantification spring. A rotary shaft gear is linked with a combination ratchet which is linked with and drives transition gears. A positioning wheel of a positioning control mechanism is fixed on a limiting rotary shaft. A positioning groove is formed in the positioning wheel. A positioning block is arranged on a closing board and matched with the positioning groove to control the closing board to open and close. A water inlet of a meter body is provided with an inner valve cavity with an opening in the longitudinal direction. The closing board and the opening of the inner valve cavity are closed. The closing board is fixed in the meter body and can rotate. A reset spring is arranged outside of a cavity hole of the inner valve cavity and connected with the closing board. The passive automatic-control liquid flowmeter has following beneficial effects: due to the fact that the inner valve cavity is arranged in the meter body and the closing board is transversely arranged in a cavity port of the inner valve cavity in the meter body, the closing board cannot be seen from a liquid inlet of the flowmeter; the closing board cannot be prided laterally from the liquid inlet; a sealing effect is improved; and water is prevented from being stolen and leaked.
Owner:ZHEJIANG ZHONGSHUI INSTR
Thermoplastic polyolefin waterproof sheet material and preparation method thereof
The invention discloses a thermoplastic polyolefin waterproof sheet material and a preparation method thereof. The thermoplastic polyolefin waterproof sheet material comprises thermoplastic polyolefin as a base material, chlorinated polyethylene, a filler and other assistants and is prepared by an extrusion calendering molding method. The thermoplastic polyolefin waterproof sheet material has excellent comprehensive economic and technical indexes such as excellent water resistance, seepage resistance, weatherability, high tensile strength, high elongation percentage, aging resistance, strong deformation adaptability, wide temperature use range, high bonding strength, long service life, construction easiness and low cost. The thermoplastic polyolefin waterproof sheet material is used for waterproof engineering of passenger transport private line bridge floor concrete, subway, road, port terminal and underground large-scale engineering.
Owner:天津市耀新科技发展有限公司
Structure for PCCP bell and spigot joint, pipeline and construction method
PendingCN107989156AImprove reliabilityExcellent resistance to backwater pressureSewer pipelinesFiberGlass fiber
The invention relates to the field of water conservancy projects, in particular to a PCCP bell and spigot joint structure and a construction method thereof. Firstly, the interior of a bell and spigotjoint is cleaned, the joint is coated with SK primer, and then a plastic sealing material with the width the same as that of the joint is placed into the joint; secondly, the plastic sealing materialis compacted, so that the lower space in the joint is full of the sealing material, and the sealing material and the joint are closely combined; the sealing material is filled with epoxy putty to be flush with the surface, then the surface of the epoxy putty is coated with an elastic polyurethane / polyurea coating or transparent adhesive tape adheres to the surface of the epoxy putty to serve as anisolation layer, and the upper side of the isolation layer is coated with a bottom high-toughness epoxy coating, wherein the epoxy coating is 10-20 cm wider than the isolation layer; a gum dipping glass fiber belt is laid and coated with a surface high-toughness epoxy coating. The structure and the construction method have the advantages that construction is simple, backwater pressure resistanceis high, erosion and abrasion resistance is good and sanitary standards of drinking water are met while the deformation capacity of a PCCP bell and spigot is maintained moderately.
Owner:BEIJING IWHR KHL +1
Permeating and curing inorganic mineral color dry powder paint for highway bridge
InactiveCN106752164AGood anti-leakageGood antibacterial and antifungal effectFireproof paintsAntifouling/underwater paintsAdhesiveHazardous substance
The invention discloses permeating and curing inorganic mineral color dry powder paint for a highway bridge. The permeating and curing inorganic mineral color dry powder paint is prepared from, by weight, 20-40 parts of Portland cement, 15-25 parts of vinyl acetate copolymer, 15-25 parts of styrol copolymer, 8-12 parts of organosilicon compound, 10-20 parts of inorganic filler, 2-6 parts of coupling agent, 1-3 parts of curing agent, 2-6 parts of fortifier, 1-3 parts of inorganic adhesive, 1-3 parts of antibacterial agent, 4-8 parts of mineral colored stone and 3-5 parts of pigment. The permeating and curing inorganic mineral color dry powder paint for the highway bridge has good anti-leakage, antibacterial and anti-mold effects, is good in weather resistance, acid and alkali resistance and flame retardant effect, free of toxicity and smell, and releases no harmful substances; the preparing method is simple and low in preparing cost, and the color dry powder paint can effectively avoid alkali efflorescence and desquamation problems, prolongs the service life of the highway bridge when used in the highway bridge and is worthy of popularization.
Owner:MOBAO CO LTD
A kind of hesperidin waterproof coating
The invention discloses a hesperidin waterproof coating, which is composed of the following raw materials in parts by weight: silicon acrylic emulsion 63-71.4, hesperidin 0.1-0.2, linoleic acid 1-2, aminopropyl triethyl Oxysilane 0.4-1, Alkanolamide 0.2-0.4, Potassium Hydrogen Sulfate 1-2, Borax 2-3, Zinc Dihydrogen Phosphate 1-2, Ethylene Glycol Dimethacrylate 2-3, Quasi-Spherical Silicon Micropowder 10-14, propylene alcohol 1-2, carboxylic acid glyceride 1-2, film-forming aid 5-8, deionized water 10-17, the waterproof coating of the present invention has excellent waterproof performance, high strength, and its bonding Good strength and tensile strength, stable coating film, strong anti-leakage, strong anti-peeling, not easy to foam and fall off, strong adhesion, friendly to the environment, and simple construction.
Owner:ANHUI KUAILAI WATERPROOFING & ANTI CORROSION
Design and method of ultra-high safety ceramic wire and cable
ActiveCN111816358BHigh mechanical strengthHigh strengthClimate change adaptationInsulated cablesLow smoke zero halogenOxygen barrier
The invention discloses an ultra-high safety ceramic wire and cable design and method, relates to the technical field of ceramic wire and cable, and specifically relates to an ultra-high safety ceramic wire and cable design and method, including a ceramic cable main body and an easy-to-detach installation mechanism , the upper and lower sides of the outer wall of the ceramic cable main body are equipped with wear-resistant protection mechanisms, and the easy-to-detach installation mechanism is located in the middle of the outer wall of the ceramic cable main body. The ultra-high safety ceramic wire and cable design and method are equipped with an oxygen barrier layer, a steel wire rope, a ceramic layer and an insulating layer. The steel wire rope can effectively enhance the overall toughness of the ceramic wire and cable, and the ceramic layer can effectively ensure fire resistance and insulation. function, while the insulating layer is prepared by low-smoke, halogen-free and radiation crosslinking. The insulating layer can effectively separate the external objects from the copper core, effectively avoid the occurrence of leakage, and effectively ensure the stability of ceramic wires and cables. use.
Owner:贵阳中安科技集团有限公司
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