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Inorganic thermal insulation light mortar and construction method thereof
InactiveCN102372476AReduce loadImprove integrityBuilding material handlingMass ratioThermal insulation
The invention discloses an inorganic thermal insulation light mortar, the mortar is mainly composed of a raw material and water in the following percentage by mass: the raw material is composed of 45-55% of lightweight aggregate, 15-20% of hydraulic material, 12-18% of air-setting material, 7-10% of active stuffing and 5-8% of additives; and the mass ratio of the water to the raw material is 0.15-0.25. The mortar in the invention is selected based on a principle of combining a hydraulic cementing material with an air-setting cementing material to satisfy material strength development and application quality demand and effect under a wall body environment condition; a non-gravity gasification suspension stirring technique is applied for achieving an expected stirring effect of generating no damage on a light thermal insulation material; and a one-time continuous jetting construction technique is utilized for not only solving the air bubbling and cracking problems of a wall body, but also greatly improving the construction quality, thermal insulation effect and construction efficiency.
Owner:MINGYUAN NEW MATERIALS TECH DEV CO LTD
Heatproof spraying-free high-gloss nylon material and preparation method thereof
The invention relates to the field of automobile material preparation, and especially relates to a heatproof spraying-free high-gloss nylon material and a preparation method thereof. The nylon material is composed of following raw materials in parts by weight: 55.9 to 82.8 parts of semi-aromatic nylon resin, 5 to 20 parts of polycaprolactam and / or poly(nylon 66), 10 to 20 parts of solid glass bead, 1 to 3 parts of brightener, 0.4 to 0.8 part of antioxidant, 0.5 to 1.5 parts of coloring agent, and 0.3 to 0.8 part of lubricant. The provided nylon material is mainly made of semi-aromatic nylon resin; the matrix is in a highly transparent glass state; compared with other automobile spraying-free black decorative materials, such as PMMA, ABS, and the like, and the provided nylon material has abetter dyeing performance and a better temperature tolerant property, is capable of forming a highly bright and black coating, and is resistant to scratching, chemical products, and impact. The provided nylon material does not need any complicated spraying technology, the cost is reduced, and moreover, the nylon material is healthy and environmentally friendly and has an important practical value.
Owner:JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
Preparation method of high-temperature abrasion proof ceramic wafer
The invention provides a preparation method of high-temperature abrasion proof ceramic wafer, using the fused brown alumina, fused sub-white corundum, silicon carbide, fused mullite with a grain size of 1-3mm as the main material; using the dense brown alumina, fused sub-white corundum, silicon carbide, silicon nitride, boron carbide with grain sizes of 180 mesh, 0.088-1mm, 325 mesh and active a-Al2O3 powder with a grain size <=2Mum and nano micro silica powder with a grain size <=200nm as the adjuvant, using soft clay, spodumene, bentonite, metallic silicon with grain sizes of 180 mesh or 325 mesh as the agglutinant; using the pure calcium aluminate cement or sulphite pulp waste-liquor as the temporary binding agent; using the sodium hexametaphosphate, zirconia as the additive; stirring the above materials in a high-power stirrer for 10-15 minute; adding the clean water or the sulphite pulp waste-liquor into the mixture and continuously stirring the mixture for 5-10 minute; casting molding or pressure molding the mixture; drying the molded mixture at 250-300 DEG C and incubating the dried mixture for 4-8 hour; sintering the mixture at above 1350-1650 DEG C in a high-temperature furnace and incubating the sintered mixture for 4-10 hour.
Owner:重庆罗曼科技有限公司
Display apparatus
InactiveCN108847137AImprove impact resistanceWith impact resistanceIdentification meansDamping factorDisplay device
A display device includes a flexible display panel, a support layer and a buffer layer. A flexible display panel is disposed above the support layer, and the support layer is disposed above the bufferlayer. In the display device, the Young's modulus of the support layer is greater than the Young's modulus of the buffer layer, and the damping coefficient of the buffer layer is greater than or equal to 0.25.
Owner:AU OPTRONICS CORP
The member for headliner on motor vehicles of multilayer structure
ActiveCN101132953AHeat resistantImprove heat resistancePedestrian/occupant safety arrangementMotor vehicle partThermal insulation
The present invention relates to an automotive headliner, and more particularly to a multilayer automotive headliner, which is manufactured by blending at least one thermoplastic fiber, a sheath-core bicomponent fiber composed of a core component and a sheath component having a melting point and properties different from those of the core component, and at least one functional thermoplastic organic fiber and natural fiber with each other at various blending ratios, and forming the fiber blends into a multilayer structure. The inventive automotive headliner is a thermoplastic organic fiber-reinforced composite material reinforced with functional thermoplastic organic fiber or natural fiber at a suitable ratio and having a two-layer, three-layer or five-layer molded structure, and thus has effects of excellent sound absorption, thermal insulation, impact resistance, moldability and durability. Also, it is a multilayer lightweight automotive headliner which is eco-friendly and recyclable because it contains pure thermoplastic organic fiber and natural fiber without using thermosetting adhesives, polyurethane foams and inorganic reinforcing fibers, such as glass fiber, carbon fiber and boron fiber, as used in the prior automotive headliner.
Owner:普莱科斯普可利亚有限会社
Horizontal axis ocean current energy electric generator variable-pitch device and horizontal axis ocean current energy electric generator
ActiveCN105840411AEasy to captureHigh transmission powerHydro energy generationReaction enginesGear wheelHorizontal axis
The invention discloses a horizontal axis ocean current energy electric generator variable-pitch device and a horizontal axis ocean current energy electric generator. The variable-pitch device comprises a driving part which is a motor or a hydraulic motor, a screw rod which is fixedly connected with an output shaft of the driving part through a coupler and a push plate which is arranged on the screw rod in a sleeving mode and is in threaded connection with the screw rod. The left end of the screw rod is supported through a pair of centripetal thrust bearings. The right end of the screw rod extends into the left end of a central hole of a spindle flange and a spindle. A first sliding bearing is formed between the screw rod and the left end of the central hole of the spindle flange and the spindle. Electric slip rings or a hydraulic slip ring are / is mounted at the right end of the spindle. One gear rack is fixed to each side surface of the push plate, each gear rack is engaged with a gear wheel, all the gear wheels are fixedly connected with the roots of corresponding blades through variable-pitch flanges, and second sliding bearings are formed between the variable-pitch flanges and the wheel hub wall. An angle transducer is installed at the left end of the driving part. By means of the horizontal axis ocean current energy electric generator variable-pitch device and the horizontal axis ocean current energy electric generator, the variable-pitch angle larger than 180 degrees can be achieved, therefore, double-way electricity generation is achieved, unified pitch variation can be achieved, and operation is stable.
Owner:ZHEJIANG UNIV
Sea wave and wind power generation device
InactiveCN103199739ANo chemical pollutionAvoid damagePiezoelectric/electrostriction/magnetostriction machinesDynamo-electric machinesElectricityElastic component
The invention discloses a sea wave and wind power generation device which is characterized by comprising a closed cavity and at least three micro power generation structure bodies. Each micro power generation structure body is composed of an elastic component, piezoelectric material, a permanent magnet and a coil, the micro power generation structure bodies are fixed on the inner wall of the cavity, the axial lines where the three micro power generation structures are positioned are in a three-dimensional orthogonality state, the inner space of the cavity is of a certain size, therefore the device can be supported to float on the water, the piezoelectric material is fixed on the outer surface of the elastic component, each elastic component drives two power generation units simultaneously to output electric energy outward, one power generation unit outputs electric energy by adoption of the direct piezoelectric effect of the piezoelectric material, and the other power generation unit outputs the electric energy by adoption of the electromagnetic induction principle.
Owner:张平
Discontinuous liquid level sensor based on optical fiber bragg grating technology
ActiveCN106441511AWith anti-electromagnetic interferenceImprove stabilityLevel indicators by floatsFiberCarbon fibers
Provided is a discontinuous liquid level sensor based on the optical fiber bragg grating technology. The discontinuous liquid level sensor comprises a broadband light source, a 3dB optical fiber coupler, an FBG sensing array, a wavelength demodulation module and a micro-control unit. Light output by the broadband light source passes through a temperature reference optical grating and a stress sensing optical grating which are stuck to a cantilever beam structure in the FBG sensing array in sequence through the 3dB optical fiber coupler, and the packaging material of a sensing probe, the floater material and the optical grating sticking material all adopt carbon fiber; the liquid level change can change the acting force of a magnet on a floater to sheet iron on a carbon fiber plate, the carbon fiber plate is made to be deformed, the reflection wavelength of the sensing optical grating is changed, reflected light is input into the wavelength demodulation module through the 3dB optical fiber coupler, and demodulation of the reflection wavelength is completed; a signal is transmitted to the micro-control unit with a temperature-stress compensation algorithm for data processing. The discontinuous liquid level sensor is simple and reliable in structure, high in detection precision and sensitivity and capable of being applied to severe environments such as high temperature and high corrosion and achieving discontinuous detection of liquid levels of different heights.
Owner:珠海任驰光电科技有限公司
Ground floor plastering gypsum
The invention discloses a preparation method of a ground floor plastering gypsum, which is improvement of the ground floor plastering gypsum. The ground floor plastering gypsum is prepared mainly by the following ingredients according to weight percentage: 30-50% of desulfurization building gypsum, 50-70% of fine sand, 0.01-0.04% of binder, 0.015-0.05% of water retaining agent and 0.01-0.05% of retarder. The ground floor plastering gypsum is strong in cohesive force, good in water resistance and low in cost, and does not crack, thus being an ideal choice for replacing traditional plastering materials.
Owner:INNER MONGOLIA UNIV OF SCI & TECH
Wear-resisting anti-aging power cable sheath material and preparation method thereof
ActiveCN106366373AImprove aging resistanceAccelerated agingRubber insulatorsPlastic/resin/waxes insulatorsFiberCarbon fibers
The invention discloses a wear-resisting anti-aging power cable sheath material. The wear-resisting anti-aging power cable sheath material is prepared from, by weight, 30-40 parts of nitrile rubber, 20-30 parts of polyvinyl chloride, 20-30 parts of phenolic resin, 10-18 parts of carbon fiber, 10-15 parts of carbon black, 12-18 parts of organic montmorillonite, 10-15 parts of microcrystalline cellulose, 0.5-2 parts of N,N-xylene ursol, 1-2 parts of stearic acid, 10-15 parts of a fire retardant, 3-5 parts of paraffin and 1-1.5 parts of an anti-aging agent. The tensile strength of the cable sheath material is 26.4-31.5 Mpa, the elongation at break is 286%-310%, and the wear-resisting anti-aging power cable sheath material is good in wear resistance and aging resistance and long in service life.
Owner:NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
Built-in metal rubber composite vibration reducing material and forming method thereof
InactiveCN101067428AIncrease dampingAvoid dependenceRubber-like material springsLow internal friction springsRubber materialRough surface
The embedded metal rubber compound damping material and the forming method relate to the metal compound damping material. It solves the problem of the no continuous material room, rough surface, no ideal part character, not bear collecting load, not proper for the tension, the shear and the torsion. The connecting part of the metal rubber material is embedded into the continuous material which is fixed with the rubber material. The forming method is: one, preparing the metal rubber material; two, the formed metal rubber material is embedded into the die; three, pouring the liquid metal or the resin into the die. After the liquid metal or the resin solidifying, it is separated from the die and gets the metal rubber compound damping material. The compound material avoids the reliability to the holding structure and decreases the process and cost which has the good damping ability under the out bearing.
Owner:郑钢铁 +4
High-water-resistance quick-photocuring pearlescent water-based UV paint, and preparation method and application method thereof
ActiveCN105969161AHigh hardnessImprove wear resistancePretreated surfacesPolyurea/polyurethane coatingsEpoxyWater based
The invention relates to a water-based UV paint, particularly a high-water-resistance quick-photocuring pearlescent water-based UV paint, and a preparation method and application method thereof. The paint is prepared from a water-based polyurethane acrylate resin, a water-based epoxy acrylic resin, a functional monomer, a photoinitiator, a leveling agent, an anti-settling agent, pearl powder and a solvent, wherein the functional monomer comprises at least one of dipentaerythritol hexaacrylate, pentaerythritol triacrylate and trimethylolpropane triacrylate. The number of the functional groups of the dipentaerythritol hexaacrylate, pentaerythritol triacrylate and trimethylolpropane triacrylate is 3 or above. The photocured paint film has the advantages of high crosslinking density, excellent hardness, excellent tensile strength and excellent mechanical properties. The water-based epoxy acrylic resin is introduced on the basis of the water-based polyurethane acrylic resin, thereby enhancing the water resistance of the paint film. By introducing the pearl powder and anti-settling agent, the paint film has gorgeous pearl effects.
Owner:深圳市嘉卓成科技发展有限公司 +1
Adjustable finishing broach of wheel disc and tenon slot combination surface
InactiveCN102717149AMaintain and improve geometric accuracyEliminate size deviationBroaching toolsTongue and grooveGas turbines
The invention discloses an adjustable finishing broach of wheel disc and tenon slot combination surface. The adjustable finishing broach comprises a mounting section, a cutting section and an adjusting section, wherein the cutting section consists of two halves of separate contour line blade elements and fixed on the mounting section through the adjusting section, and the adjusting section is a replaceable element to adjust the position of the contour line of the cutting section. According to the invention, the dimensional deviation of reground cutting edge can be removed; the geometric accuracy of precisely processed contour line is kept; the tool cost is reduced, and the service life of the tool is prolonged; and the adjustable finishing broach is suitable for broaching machining of the wheel disc and the tenon slot of a heavy gas turbine rotor.
Owner:SHANGHAI JIAO TONG UNIV
Paint composition for metal product
InactiveCN1398934AExcellent adhesionWith impact resistanceLiquid surface applicatorsEpoxy resin coatingsEpoxyNonferrous metal
A coating composition for metal products comprises 40-90 pts.wt. of baking finish resins, 5-50 pts.wt. of amino resins, and 3-10 pts.wt. of epoxy resins. The coating composition for metal products excellent in adhesion to various metals such as nonferrous metals such as aluminum, zinc and lead and stainless steel, having good physical properties such as flexibility, impact resistance, weatherability, water resistance, humidity resistance and abrasion resistance, and capable of forming coating film excellent in design properties such as gloss and appearance.
Owner:大丰涂料株式会社
Coking wastewater treatment agent and use method thereof
ActiveCN101519239ALittle influence of temperatureReduce concentrationWater/sewage treatment by flocculation/precipitationHigh concentrationSewage
The invention provides a coking wastewater treatment agent and a coking wastewater treatment process. The coking wastewater treatment agent comprises activity transforming agent, highly-efficient dispersant and coacervating agent. The coking wastewater treatment process comprises the steps of adding the activity transforming agent in the coking wastewater and well mixing the activity transforming agent and the coking wastewater, adding the highly-efficient dispersant to the solution and well mixing the high-efficient dispersant and the solution, adding the coacervating agent to the new solution and well mixing the coacervating agent with the new solution, and standing the solution until the solution is layered with light oil at the upper layer, treated water in the middle layer and solid precipitate at the lower layer. The coking wastewater treatment agent has unique effect on the coking sewage of high-concentration petroleum, suspended substance and COD in the coking wastewater, and the coking wastewater treatment agent is less affected by temperature. The coking wastewater treatment process is stable and reliable and convenient to manage, ensures the stable running of a sewage treatment plant and the discharge of the sewage after reaching standard, can treat the coking wastewater through slightly renovating original equipment and reduces the coking wastewater treatment cost.
Owner:甘肃宇辰化工科技有限公司
Coal gangue separation parallel flexible three-degree-of-freedom robot
PendingCN110340876AReduce end weightSmall inertiaProgramme-controlled manipulatorSortingThree degrees of freedomDegrees of freedom
The invention discloses a coal gangue separation parallel flexible three-degree-of-freedom robot. The robot is composed of a moving mechanism, a parallel mechanical arm and a paw mechanism, wherein the moving mechanism is transmitted by a lead screw nut pair and is supported by a double guide rod; the parallel mechanical arm is mainly composed of a left driving arm, a left driven arm, a right driving arm, a right driven arm and a moving platform, and the left side and right side are symmetrically distributed; the paw mechanism is fixedly arranged at the lower end of the movable platform, in order to keep horizontal of the movable platform, a toothed belt transmission and an auxiliary rod parallelogram mechanism are adopted, one end of the toothed belt transmission mechanism is fixed, and the other end of the toothed belt transmission mechanism swings along with the driving arms; in order to reduce the impact generated in the sorting process, a spring plate is adopted in the auxiliary rod mechanism to absorb vibration generated in the impact process; and the paw mechanism adopts a finger separable structure and can adapt to separation of coal gangue with different specifications. The mechanism has the advantages of being large in structural rigidity, strong in bearing capacity, small in tail end inertia and capable of providing a flexible buffer function.
Owner:唐山市德丰机械设备有限公司
High-temperature-resistant adhesive tape as well as high-temperature-resistant release film and high-temperature-resistant adhesive used by high-temperature-resistant adhesive tape
ActiveCN104789167AImprove high temperature resistanceImprove heat resistanceNon-macromolecular adhesive additivesFilm/foil adhesivesPolytetramethylene terephthalatePolyvinyl alcohol
The invention relates to a high-temperature-resistant adhesive tape as well as a high-temperature-resistant release film and a high-temperature-resistant adhesive used by the high-temperature-resistant adhesive tape. A raw material formula of the high-temperature-resistant adhesive comprises the following components: 40-80 parts of ethylene glycol dimethacrylate, 20-30 parts of octadecyl acrylate, 5-10 parts of phenyltrimethoxysilane, 5-10 parts of vinyltriisopropenyloxysilane, 2-10 parts of nano-silica, 1-5 parts of aluminium hexafluoroacetylacetonate, 2-6 parts of polyvinyl alcohol, 2-5 parts of an emulsifier, 1-3 parts of an initiator and 200-350 parts of deionized water. A raw material formula of a film spraying material of the high-temperature-resistant release film comprises the following components: 60-80 parts of polyimide, 10-30 parts of 1,3,5-tris(3,3,3-trifluoropropyl)methylcyclotrisiloxane, 5-25 parts of polybutylene terephthalate, 2-10 parts of an ethylene vinyl acetate copolymer, 2-8 parts of vinyl phenyl silicon oil, 1-3 parts of dioctyl sebacate and 1-4 parts of dibutyltin dilaurate. The heat-resistant pressure sensitive adhesive tape prepared by the invention can work at 70-160 DEG C and can resist the high temperature of 600 DEG C or above in a short time.
Owner:苏州市伽俐电子有限公司
Color steel sandwich plate
InactiveCN107012982AImprove insulation performanceImprove insulation effectSpecial buildingBuilding componentsSilicon dioxideFoam glass
The invention discloses a color steel sandwich plate. The color steel sandwich plate is characterized by being provided with a first color steel plate body, a first silicon dioxide aerogel layer, a foam glass layer, a second silicon dioxide aerogel layer and a second color steel plate body in sequence from left to right; reinforcing materials are arranged in the first silicon dioxide aerogel layer and the second silicon dioxide aerogel layer in the direction perpendicular to the color steel sandwich plate; an upper positioning clamping plate and a lower positioning clamping plate are arranged on the upper and lower edges of the color steel sandwich plate correspondingly; a flange is arranged on the upper positioning clamping plate; and a groove used for storing the flange is formed in the lower positioning clamping plate.
Owner:JIANGSU YUEFA CONSTR ENG CO LTD
Super weather-proof composite waterproof roll material
InactiveCN104553185AWith super weather resistanceResistant to UV radiationLamination ancillary operationsSynthetic resin layered productsHigh resistanceEnvironmental resistance
The invention relates to the field of waterproof roll materials, and particularly relates to a super weather-proof composite waterproof roll material. The super weather-proof composite waterproof roll material comprises a bonding and sealing adhesive layer and an isolating film protection layer, and also comprises a super weather-proof polymeric film layer, wherein the super weather-proof polymeric film layer, the bonding and sealing adhesive layer and the isolating film protection layer are sequentially arranged from top to bottom and are adhered into a whole in a hot pressing way. The hot pressing temperature is 30 to 220 DEG C, includes but is not limited to 30 to 220 DEG C, and can be adjusted according to factors such as specific production equipment and a hot pressing technology. The bonding and sealing adhesive layer is compounded with the a super weather-proof polymeric film structure, so that the structure has high environmental resistance, corrosion resistance, high strength and high toughness, good dimensional stability, and high impact resistance and puncture resistance, does not need to be protected by cement and mortar, and can be constructed in various environments.
Owner:HANGZHOU FUMO NEW MATERIAL TECH
Large-deformation constant-resistance periodic yielding bolt
ActiveCN104895597AIncrease frictional resistanceDoes not damage the structureAnchoring boltsEngineeringShock resistance
Owner:HUNAN UNIV OF SCI & TECH
As-cast high-strength ductile iron and preparation method thereof
The invention discloses an as-cast high-strength ductile iron and a preparation method thereof. The method comprises: 1) preheating steel scrap and foundry returns at the temperature 1050-1150 degrees centigrade; 2) fusing the preheated raw material at the temperature 1500-1550 degrees centigrade to obtain molten iron; 3) adding rare-earth nodularizer and inoculant into the molten iron and stirring to obtain inoculated molten iron; 4) adding stream inoculant into the inoculated molten iron and casting to obtain as-cast high-strength ductile iron, wherein the rare-earth nodularizer contains rare earth element, magnesium, calcium, barium, silicon, iron and impurity elements; the inoculant contains silicon, aluminum, barium, carbon and impurity elements; the stream inoculant contains silicon, aluminum, bismuth, carbon and impurity elements. The ductile iron prepared by the method disclosed by the invention achieves high hardness, high tensile strength and high impact resistance.
Owner:YINFENG CASTING WUHU CO LTD
Micro-polluted water source deep treatment and purification system and method
InactiveCN107043200AGuaranteed inactivation effectGuarantee hygienic safety performanceSludge treatment by de-watering/drying/thickeningSpecific water treatment objectivesProcess systemsSludge
The invention discloses a micro-polluted water source deep treatment and purification system and method. The system comprises a regulation pool, an ozone pre-oxidation tower, a magnetic loading and flocculation system and an ozone-biological activated carbon filter system; and the magnetic loading and flocculation system is also connected with a medicament blending and dosing system and a magnetic powder recovery and sludge treatment system. The method comprises the following steps: I, pre-oxidation; II, flocculation reaction; III, magnetization; IV, growing to be mature; V, natural settling; VI, mud-water separation; VII, oxidation and disinfection; VIII, physical adsorption; IX, disinfection; and X, delivery to a user. The micro-polluted water source deep treatment and purification system and method integrate magnetic loading and flocculating sediment, ozone-biological activated carbon filter and a conventional water purification and treatment process to form an efficient deep treatment and purification process system.
Owner:HOHAI UNIV
Wood veneer surfaced decorative laminate product and method of making same
ActiveCN101293364AHas tenacityMoisture-proofVeneer manufactureWood veneer joiningEngineeringMoisture resistance
Owner:THE DILLER
Aerobic granular sludge culture method
ActiveCN104556362ASalt tolerantWith impact resistanceNature of treatment waterSustainable biological treatmentActivated sludgeSequencing batch reactor
The invention relates to an aerobic granular sludge culture method. The aerobic granular sludge culture method comprises the following steps of 1, inoculating a sequencing batch reactor with activated sludge, 2, adjusting a pH value of petrochemical wastewater to be treated by sulfuric acid and pumping the petrochemical wastewater with an adjusted pH value into the reactor, 3, carrying out aeration by an aeration device laid on the bottom of the reactor so that the activated sludge and the petrochemical wastewater are mixed and undergo a full reaction, 4, stopping aeration and carrying standing for sludge-water separation, and 5, discharging a certain amount of water by a water outlet of the reactor and periodically repeating the steps of 2 to 5 in the reactor. The aerobic granular sludge culture method utilizes the petrochemical wastewater to carry out aerobic granular sludge culture. The cultured aerobic granular sludge has salt resistance, impact resistance and high-density organic load resistance, can be directly used for treatment on high-salt, high-COD and strong basic petrochemical wastewater, solves the bottleneck problem of use of aerobic granular sludge in petrochemical wastewater treatment and further widens an aerobic granular sludge technology application scope.
Owner:CHINA PETROLEUM & CHEM CORP +1
Anti-aging shock resistant material and preparation method thereof as well as cable protection tube prepared from same
The invention relates to the technical field of cable protection tube materials, and specifically relates to an anti-aging shock resistant material and a preparation method thereof as well as a cableprotection tube prepared from the same. The anti-aging shock resistant material comprises the following raw materials in parts by weight: 70 to 90 parts of cross-linking polyethylene resin, 30 to 60parts of polyvinyl chloride resin, 15 to 18 parts of polyurethane resin, 10 to 12 parts of a shock resistant modifier, 5 to 10 parts of an anti-aging accessory ingredient, 8 to 16 parts of a fire retardant, 5 to 10 parts of a coupling agent and 8 to 12 parts of a compatilizer. The anti-aging shock resistant material disclosed by the invention has excellent aging resistance and shock resistance, the shock resistance is 18.65 to 22.96 KJ / m<2>, the tensile strength is 81.8 to 93.4 MPa, the material is high in insulation resistance, strong in loading capacity, excellent in electric insulation performance and insulation effect, the specific insulation resistance is 1.228*10<14> to 1.376*10<15> omega.m, and the comprehensive mechanical property is excellent.
Owner:广东威立瑞科技有限公司
UV-curable resin composition for transparent colored coated steel sheet and steel sheet utilizing the same
ActiveCN102264850ACorrosion resistanceWith impact resistancePhotomechanical apparatusPolyurea/polyurethane coatingsSheet steelOligomer
The present invention relates to an ultraviolet curable resin composition comprising: 25 to 45 wt% modified epoxy acrylate oligomer; and 10 to 25 wt% urethane acrylate oligomer. The present invention can provide a metal sheet which is transparent, and which has corrosion resistance, impact resistance, scratch resistance, adhesion, anti-corrosion, and bendability (workability) by forming a coating film on the surface of metal materials such as steel materials, specifically steel sheets, using the ultraviolet curable resin composition of the present invention.
Owner:POSCO CO LTD
Impact-resistant and high-energy-absorption lattice sandwich structure with negative poisson ratio characteristic
PendingCN112140647AResistance to compressive loadsLight structureLayered productsHigh energySpecific modulus
The invention discloses an impact-resistant and high-energy-absorption lattice sandwich structure with a negative poisson ratio characteristic. The lattice sandwich structure is formed on the basis ofa high-performance negative poisson ratio lattice core material. The negative poisson ratio lattice core material is obtained by changing an included angle between a supporting column and a coordinate axis through a three-dimensional cubic structure. When the included angle between the supporting column and the coordinate axis is not equal to zero, the negative poisson ratio lattice core materialis obtained. The negative poisson ratio lattice material and two thin plates form a novel negative poisson ratio lattice sandwich structure, and the structure has the characteristics of a traditionalauxetic lattice structure and a traditional lattice sandwich structure at the same time, that is, the structure has the characteristics of the negative poisson ratio and the same-direction curvature;meanwhile, has excellent mechanical properties such as ultra-light weight, high specific modulus, high specific strength, impact resistance and high energy absorption. In addition, the sandwich structure has high adjustability, and the mechanical property of the lattice sandwich structure can be adjusted and controlled within a large range by adjusting the deflection angle of the supporting column and the relative density of the lattice material. The lattice sandwich structure has a great application prospect in the field of aerospace.
Owner:BEIHANG UNIV
Radial sliding bearing for turbine drill
InactiveCN102182751AImprove carrying capacityImprove wear resistanceBorehole drivesSliding contact bearingsAlloyHigh pressure
The invention discloses a radial sliding bearing for a turbine drill. The bearing comprises a steel static ring and a steel moving ring, wherein the static ring is sleeved at the outer part of the moving ring; a first sliding contact layer which is formed by the arrangement of a plurality of hard alloy blocks in intervals is inlaid on the inner surface of the static ring; a second sliding contact layer which is formed by the arrangement of a plurality of hard alloy blocks in intervals is inlaid on the inner surface of the moving ring; and the first sliding contact layer and the second sliding contact layer are arranged in opposite and form sliding match. The sliding bearing provided by the invention has stronger abrasive resistance, the service life is prolonged greatly, the over-high temperature can be avoided in the using of the bearing, and the bearing can be suitable for the use under a severe working condition, such as a deep well and high-temperature high-pressure drill.
Owner:BEIJING CHUNLUN PETROLEUM TECH DEV CO LTD
Polymer-based film waterproofing agent mixed with cement, and preparation method thereof
InactiveCN102762678AHigh tensile strengthChemical resistantBuild-up roofsProtective foundationCrack resistanceWater leakage
The present invention relates to a polymer-based film waterproofing agent mixed with cement which is coated on a structure requiring waterproofing and water leakage prevention so as to show excellent chemical resistance, weather resistance, crack resistance and impact resistance and high tensile strength in addition to waterproofness by preventing penetration of water into the structure, and a preparation method thereof. The polymer-based film waterproofing agent mixed with cement of the present invention comprises: 65-75 wt% of an acrylic emulsion; 12-20 wt% of micro-cement; 10-18 wt% of quicklime; 0.02-0.2 wt% of a superplasticizer; 0.02-0.2 wt% of an antifoaming agent; and 0.02-0.2 wt% of an expansion agent. The preparation method comprises: the first step of preparing 65-75 wt% of an acrylic emulsion in a liquid state in a first circular container; the second step of preparing 12-20 wt% of micro-cement in a powder state, 10-18 wt% of quicklime, 0.02-0.2 wt% of a superplasticizer, 0.02-0.2 wt% of an antifoaming agent, and 0.02-0.2 wt% of an expansion agent in a second circular container; and the third step of pouring the contents prepared in the second circular container into the first circular container to dilute the same with an electric mixer.
Owner:河泰薰
Environment-friendly ceramic material
The invention discloses an environment-friendly ceramic material which comprises the following components in parts by weight: 100-150 parts of kaolin, 20-30 parts of silicon carbide, 30-40 parts of active carbon powder, 10-15 parts of nano zirconium dioxide, 25-50 parts of glass fibers, 20-30 parts of carbon fibers, 80-100 parts of dolomite powder, 5-10 parts of octaphenyl polyoxyethyiene, 5-10 parts of polydimethylsiloxane and 10-15 parts of trimethyl hexanediamine. The environment-friendly ceramic material is subjected to high-temperature sintering and has the characteristics of high hardness, corrosion resistance, good thermal change resistance, thermal shock resistance, impact resistance and the like; an adsorption material capable of adsorbing toxic and harmful substances is added into ceramics, so that when the ceramic material is used, the toxic and harmful substances can be adsorbed to some degree, thus cleaning the environment and improving the living quality of human beings.
Owner:陈新棠
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