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36results about How to "Play the role of sound absorption" patented technology
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Multi-layer composite environment-friendly flame retardant sound-insulating coiled product and preparation method thereof
ActiveCN103158314ALow densityImprove sound insulationSynthetic resin layered productsPolymer scienceFoaming agent
The invention discloses a multi-layer composite environment-friendly flame retardant sound-insulating coiled product. The multi-layer composite environment-friendly inflaming retardant sound-insulating coiled product is formed by alternately overlaying and compounding a material A and a material B, wherein the material A comprises the following components in part by weight: 100 parts of PVC (Polyvinyl Chloride), 10-25 parts of an environment-friendly plasticizer, 25-50 parts of a filler, 3-10.5 parts of a flame retardant smoke-suppression agent, and 10-17 parts of an accessory ingredient, the material B comprises the following components in part by weight: 100 parts of PVC, 20-45 parts of an environment-friendly plasticizer, 25-45 parts of a filler, 3-10.5 parts of a flame retardant smoke-suppression agent, 0.5-5 parts of a foaming agent and a modifier, and 10-17 parts of an accessory ingredient. The sound-insulating coiled product disclosed by the invention has the advantages of being high in sound-insulation, low in density, flame retardant, non-toxic and environment-friendly, good in flexibility, great in strength, capable of performing dry construction and few in occupied space, and not affecting the indoor decorative effect.
Owner:CHENGDU MACKO MACROMOLECULAR MATERIALS
Wear-resistance rubber for vehicles
The invention discloses wear-resistance rubber for vehicles. The wear-resistance rubber is prepared from the following components in parts by weight: 20-45 parts of neoprene, 15-45 parts of nitrile rubber, 3-6 parts of vulcanizer, 4-9 parts of accelerant, 5-12 parts of an anti-aging agent, 3-15 parts of plasticizer, 6-10 parts of zinc oxide, 5-9 parts of stearic acid, 9-12 parts of glass fiber, 3-7 parts of silicon dioxide, 2-5 parts of sodium urea formaldehyde polymer, 2-5 parts of sulfur and 3-6 parts of carbon black. Compared with the prior art, the wear-resistance rubber has the advantages that the sodium urea formaldehyde polymer and glass fibers are added into rubber to increase the wear resistance, so that the wear resistance of the rubber is greatly improved; and meanwhile, metal wires are contained inside the rubber, and the effect of absorbing sounds can be achieved.
Owner:SUZHOU GOODTIME TECH DEV
Lightweight composite organic heat preservation and sound insulation prefabricated board for fabricated buildings and preparation method
InactiveCN108505636AGood coating effectStrong enoughHeat proofingSound proofingCompound organicFoaming agent
The present invention provides a lightweight composite organic heat preservation and sound insulation prefabricated board for fabricated buildings. The lightweight composite organic heat preservationand sound insulation prefabricated board for the fabricated buildings comprises two organic sound absorption boards, a damping silicone rubber layer, two fiber cement pressure plates, wherein the twoorganic sound absorption boards are made of wood organic matter, white rot fungus hyphae and foaming agents; the damping silicone rubber layer is arranged between the two organic sound absorption boards, and is used for being connected with the organic sound absorption boards and cutting off the transmission of a sound wave; and the two pieces of fiber cement pressure plates are arranged on the outside side of the organic sound absorption boards. According to the lightweight composite organic heat preservation and sound insulation prefabricated board for the fabricated buildings, the wood organic matter is decomposed by wood rot fungi to produce dense pores, the covering effect of wood rot fungi hyphae is used, so that the organic sound absorption boards have excellent sound-absorption effect on the basis of meeting the use requirements of strength characteristic. The invention further provides a preparation method for the lightweight composite organic heat preservation and sound insulation prefabricated board for the fabricated buildings, the preparation process is simple, and the production cycle is short.
Owner:熊远
Cement-based self-leveling mortar and preparation method thereof
InactiveCN112010624AImprove hydrophobicityIncrease the anti-seepage pressureMechanical engineeringChemistry
The invention discloses cement-based self-leveling mortar and a preparation method thereof. The cement-based self-leveling mortar is prepared from a cement-based self-leveling mortar matrix and a mixture with sound insulation and waterproof functions, wherein the mixture with the sound insulation and waterproof functions comprises a sound absorption material, a waterproof material and a cementingmaterial. According to the invention, three important characteristics including water resistance, sound insulation performance and self-leveling performance are perfectly fused together, and performance conflicts in respective raw material performances are effectively solved, so the self-leveling mortar with excellent performance and sound insulation and water resistance functions is obtained.
Owner:GUANGDONG BOZHILIN ROBOT CO LTD
Damping composite material, damping pressing machine bottom plate structure and refrigerator
ActiveCN106633640AImprove damping performanceHigh mechanical strengthLighting and heating apparatusDomestic refrigeratorsEpoxyAdhesive
The invention discloses a damping composite material, a damping pressing machine bottom plate structure and a refrigerator. The damping composite material comprises a base material, filler and an aid, wherein the base material comprises 40 to 50 parts of epoxy resin; the filler comprises 20 to 25 parts of polyurethane polymers, 20 to 40 parts of glass fibers, 5 to 15 parts of barium sulfate, 10 to 20 parts of mica sheet, 3 to 8 parts of talcum powder, 5 to 10 parts of graphite, 5 to 20 parts of nano silicon dioxide, 5 to 10 parts of zinc oxide crystal whisker, and 5 to 10 parts of adhesives; and the content of the aid is 5 to 10 parts by weight. The damping pressing machine bottom plate structure comprises an upper metal plate, a middle damping layer and a lower metal plate, wherein the middle damping layer is made of the damping composite material. The damping pressing machine bottom plate structure is used as a compressor supporting plate to be applied to a refrigerator, so that the overall noise of the refrigerator is obviously reduced, and the overall silence effect is improved.
Owner:QINGDAO HAIER SPECIAL ICEBOX
Automatic vacuum packaging mechanism for spicy fish
InactiveCN112124676AImprove sealingEasy accessPackaging by pressurising/gasifyingWrapper twisting/gatheringHazardous substanceUltraviolet lights
The invention discloses an automatic vacuum packaging mechanism for spicy fish. The automatic vacuum packaging mechanism comprises a bottom plate, supporting seats are arranged on the two sides of thetop of the bottom plate, motors are installed on the outer surfaces of the supporting seats, the output ends of the motors are connected with rotating shafts, rotating rollers are arranged on the outer surfaces of the rotating shafts, the outer surfaces of the rotating rollers are in transmission connection through a conveying belt, a lower groove is fixed to the outer surface of the conveying belt, and a sealing groove is formed in the top of the lower groove. During heat sealing, a vacuum pump pumps waste gas into a purifying box, an activated carbon layer and a silver ion filtering layer primarily filter and purify the waste gas, and an ultraviolet lamp irradiates a photocatalyst layer at the moment, so that the photocatalyst layer generates a catalytic effect, and harmful substances in the waste gas are degraded; and a sound absorption layer can play a role in sound absorption during exhausting, and through blocking of all the purification layers and sound absorption of the soundabsorption layer, the exhausting speed of air is reduced, noise during exhausting is reduced, and the working environment is guaranteed.
Owner:湖南大成食品有限公司
Sound barrier unit plate and preparation method thereof as well as sound barrier
InactiveCN108275945AImprove sound absorptionReduce the temperatureNoise reduction constructionCeramicwareSound barrierAnti freezing
The invention provides a sound barrier unit plate. The sound barrier unit plate comprises a main body plate layer and a sound absorption plate layer, wherein the main body plate layer and the sound absorption plate layer are integrally connected; the main body plate layer is prepared from active concrete; the sound absorption plate layer is prepared from porous sound absorption concrete. The soundbarrier unit plate provided by the invention has excellent performance of high strength and durability, the compressive strength is 155 to 162MPa, the bending strength is 23 to 25MPa, the anti-seepage grade reaches P10 and the anti-freezing grade reaches F600; the chloride ion penetration resistance of the sound barrier unit plate is measured through an electric flux and the electric conduction amount is less than or equal to 40C; the average sound insulation amount of a sound barrier prepared from the sound barrier unit plate provided by the invention is 50 to 60dB; the sound barrier unit plate provided by the invention has excellent sound absorption performance and good sound insulation effect.
Owner:湖北正茂新材料科技股份有限公司
Cast-in-situ hollow floor with pores formed by combined reticular box-shaped component
InactiveCN104314214AHigh degree of mechanizationIncrease productivityFloorsReinforced concreteEngineering
The invention provides a cast-in-situ hollow floor with pores formed by a combined reticular box-shaped component. The cast-in-situ hollow floor comprises a reinforced concrete girder or a profile steel concrete girder, a reinforced concrete ribbed beam, an upper flange plate, a lower flange plate and the combined reticular box-shaped component, wherein the combined reticular box-shaped component comprises a box roof, a box body and a box bottom; the box body and the box bottom are made of reticular bodies; reinforcing ribs of the reticular bodies are vertically placed; each reticular body comprises a reticular plate, the reinforcing rib and a connecting piece, which constitute an integral structure; the lower flange plate is directly compounded with the reticular bodies at the box bottom of the combined reticular box-shaped component. The cast-in-situ hollow floor with the pores formed by the combined reticular box-shaped component adopts the unsealed combined reticular box-shaped component to substitute the existing fully-sealed hollow fillers and solid fillers as the cast-in-situ hollow floor pore-forming technology. The cast-in-situ hollow floor with the pores formed by the combined reticular box-shaped component is beneficial to realization of energy conservation integration of a building and the multifunctional use of hollow floor.
Owner:HUNAN BDF ENERGY SAVING TECH
Preparation method of porous network composite material with shielding and sound absorption functions
PendingCN113831686AWide variety of sourcesLow priceMagnetic/electric field screeningBarium titanateFirming agent
The invention provides a preparation method of a porous network composite material with shielding and sound absorption functions. The preparation method comprises the following steps: (1) carbonizing pre-pressed blocky loofah sponge or phenolic resin-treated blocky loofah sponge in a tubular furnace, and taking the blocky loofah sponge charcoal which is not modified or modified by copper particles as a subsequent material; (2) mixing epoxy resin with trichloromethane, then adding pinecone carbon, adding barium titanate, a curing agent and the like to prepare an epoxy resin-pinecone carbon mixture, firstly paving a layer of epoxy resin-pinecone carbon mixture on the bottom layer of a mold, then paving the blocky loofah sponge carbon, finally paving a layer of epoxy resin-pinecone carbon mixture, and finally, conducting curing in a hot press. The composite material has the advantages that the composite material not only has high conductivity, excellent electromagnetic shielding performance and certain sound absorption performance, but also has good mechanical performance, and reference value is provided for producing home decoration materials with the electromagnetic shielding performance and the sound absorption performance.
Owner:ANHUI AGRICULTURAL UNIVERSITY
Self-coupling vessel submersible pump jet propulsion device instead of propeller
PendingCN109850103AImprove efficiencyReduce rotational energy lossPropulsive elementsUnderwater vesselsImpellerJet propulsion
Owner:天津格瓦克水泵节能科技有限公司
Frequency-adjustable sound absorption and insulation light composite board and manufacturing method
PendingCN113997655AReduce the amount of noisePlay the role of sound absorptionSound proofingSound producing devicesInsulation layerNoise
The invention discloses a frequency-adjustable sound absorption and insulation light composite board which comprises a perforated board, the perforated board is an open box-shaped body provided with a frame, a sound absorption layer, the damping layers, a middle thin board, a sound insulation layer and a sound insulation board are sequentially arranged in the box body from bottom to top in a tightly attached mode, the sound insulation board is fixedly connected with the frame of the perforated board, the damping layers are bonded to the plate face, opposite to the sound insulation layer, of the middle thin plate in a periodic arrangement mode. The sound absorption and insulation light composite board is simple in structure, diversified in form and convenient to manufacture, particularly, the periodic damping structure greatly reduces the surface density and cost of the sound absorption and insulation light composite board compared with a traditional laying full-damping structure, and the resonance and coincidence effect of components are restrained through laying of periodic damping. The periodic arrangement mode of the damping layers realizes sound insulation of noise sources with different frequencies.
Owner:JIANGSU UNIV OF SCI & TECH
Ventilation device for storage of high-purity nano alumina
InactiveCN106765817APlay the role of sound absorptionReduce noiseLighting and heating apparatusNoise suppressionSurface layerNano al2o3
The invention belongs to the technical field of chemical substance storage and discloses a ventilation device for storage of high-purity nano alumina. The ventilation device comprises a frame, one end of the frame is fixed together with a protection cover through bolts, a supporting frame is fixed inside the frame, a motor is fixed on the supporting frame, one end of the motor is connected with a fan blade through a rotating shaft, a sound absorbing structure is pasted on the inner surface layer of the frame, a first filtering layer is arranged at the other end of the frame, and a second filtering layer is arranged on one side of the first filtering layer. The first filtering layer can play a role in filtering impurities in air, and the ventilation device is convenient to demount and maintain.
Owner:SHENGNUO OPTOELECTRONICS TECH QH CO LTD
Manufacturing method of glue-free self-sinking floor
InactiveCN110130613AScale upShort processFlooring insulationsResiliently-mounted floorsPlasticizerColor film
The invention discloses a glue-free self-sinking floor capable of simplifying a process flow. The glue-free self-sinking floor capable of simplifying the process flow comprises an abrasion-resistant layer, a printed color film layer, a base material upper layer, a grid fiber layer, a base material middle layer, a base material lower layer and an anti-slip film layer which are sequentially arrangedfrom top to bottom; the base material upper layer, the base material middle layer and the base material lower layer are each prepared from the following components in percentage by weight: 14.5-15.5%of PVC resin powder, 0.7-0.8% of an environment-friendly calcium zinc stabilizer, 0.7-0.8% of carbon black, 8.5-9.5% of plasticizer and 74-75% of calcium carbonate. The invention further discloses amanufacturing method of the glue-free self-sinking floor. According to the glue-free self-sinking floor capable of simplifying the process flow and the manufacturing method of the glue-free self-sinking floor, the proportion of the filler calcium carbonate can be greatly increased by improving the formula of a base material, so that a unified formula is adopted in the base material upper layer, the base material middle layer and the base material lower layer, the process flow is greatly shortened, and the manufacturing cost is reduced; and in addition, the production cost is further reduced byimproving the composite process.
Owner:张家港隽新家居建材有限公司
Heat insulation aluminum plate for automobile exhaust pipe
The invention discloses a heat insulation aluminum plate for an automobile exhaust pipe. The heat insulation aluminum plate comprises a plurality of convex parts and concave parts, wherein the convex parts and the concave parts are sequentially and alternately distributed, at least one micro passing hole is formed in each convex part and / or each concave part, and the hole diameter of each micro passing hole is 0.2mm to 1mm. In addition, a plurality of convex-concave embossing patterns are formed on the heat insulation aluminum plate, so the effect of improving the rigidity of the heat insulation aluminum plate is achieved; in addition, a plurality of micro passing holes are formed in the heat insulation aluminum plate, so the effect of sound absorption is achieved. The rigidity of the heat insulation aluminum plate is higher, and the thickness of the heat insulation aluminum plate is reduced on the premise that the new structure reaches the same performance, so the cost is reduced, meanwhile, under the condition that the hole diameter is unchanged, the heat insulation aluminum plate with the thinner thickness is more favorable for absorbing the high-frequency noise of an automobile.
Owner:DONGFENG MOTOR CO LTD
Electromagnetic induction evaporation concentrator
PendingCN111821706ALow costReduce energy consumptionSeawater treatmentEvaporator accessoriesOrganic solventEngineering
Owner:上海贵江机电技术有限公司
A plasma spraying device
ActiveCN109023217BWell mixedAvoid affecting service lifeMolten spray coatingHydraulic cylinderTemperature control
Owner:永康市协邦铸业有限公司
A driving device for powder ion plasma coating equipment
ActiveCN108707859BBurn out preventionEasy dischargeMolten spray coatingInsulation layerPlasma coating
Owner:广州初曲科技有限公司
Microcapsule formaldehyde remover, preparation method thereof and water-based damping coating
ActiveCN113956737AEfficient captureGood formaldehyde removal effectDispersed particle separationCoatingsPolymer sciencePhenolic content in tea
The invention provides a water-based damping coating. Compared with the prior art, the water-based damping coating provided by the invention comprises the microcapsule formaldehyde remover, the microcapsule adopts amino acid, tea polyphenol, an adsorbent and the like as a core material, has excellent formaldehyde removal performance and can remove formaldehyde for a long time, and a beta-cyclodextrin cross-linked polymer is adopted as a wall material and has a hollow cylindrical structure with two open ends, not only can formaldehyde molecules be effectively captured, but also a very excellent sound absorption function is achieved, so that the microcapsule formaldehyde remover has dual functions of formaldehyde removal and sound absorption; the microcapsule formaldehyde remover and other components of the coating cooperate with each other, so that the water-based damping coating has excellent sound insulation performance and long-acting formaldehyde removal performance at the same time, and also has relatively high low-temperature stability and water resistance.
Owner:HAINAN SEQUOIA CREATION
Ground mat production method
InactiveCN110946458AImprove qualityLittle cost increaseCovering/liningsSound proofingProcess engineeringMechanical engineering
The invention belongs to the technical field of sound insulation floors, and discloses a ground mat production method. The ground mat production method comprises the following steps of: performing roller preparation: providing a pair of rollers, the outer peripheral surface of at least one roller is provided with a plurality of engraving units with the same area, each engraving unit is provided with at least one engraving structure, and at least one of the number, the shape and the distribution position of the engraving structures in the adjacent engraving units is different; foaming a foamingmaterial, wherein the foaming material foams to form a soft film layer; and performing roller extrusion forming, specifically, making the soft film layer pass through the space between the pair of rollers, and making the rollers extrude the soft film layer to form the ground mat. The method is high in realizability and operability, the cost of the roller is slightly increased, the production timeis hardly increased, the realizability is high, and the economic value is high; besides, the floor mat produced in the mode is high in additional value, can effectively isolate most of sound, and isgood in sound insulation effect and high in use value.
Owner:ZHEJIANG RUNYANG NEW MATERIAL TECH
A heat-insulating aluminum plate for automobile exhaust pipe
The invention discloses a heat insulation aluminum plate for an automobile exhaust pipe. The heat insulation aluminum plate comprises a plurality of convex parts and concave parts, wherein the convex parts and the concave parts are sequentially and alternately distributed, at least one micro passing hole is formed in each convex part and / or each concave part, and the hole diameter of each micro passing hole is 0.2mm to 1mm. In addition, a plurality of convex-concave embossing patterns are formed on the heat insulation aluminum plate, so the effect of improving the rigidity of the heat insulation aluminum plate is achieved; in addition, a plurality of micro passing holes are formed in the heat insulation aluminum plate, so the effect of sound absorption is achieved. The rigidity of the heat insulation aluminum plate is higher, and the thickness of the heat insulation aluminum plate is reduced on the premise that the new structure reaches the same performance, so the cost is reduced, meanwhile, under the condition that the hole diameter is unchanged, the heat insulation aluminum plate with the thinner thickness is more favorable for absorbing the high-frequency noise of an automobile.
Owner:DONGFENG MOTOR CO LTD
Formaldehyde self-absorption type foam glass insulation board
The invention discloses a formaldehyde self-absorption type foam glass insulation board, and belongs to the field of foam glass insulation boards. The formaldehyde self-absorption type foam glass insulation board is characterized in that purification balls are fixedly connected to the interiors of insulation holes inside a foam glass insulation board body, adsorption balls are fixedly connected to the interiors of the purification balls, the interiors of the adsorption balls are made of nano crystalline, activated carbon is evenly distributed on the outer surfaces of bamboo fibers communicating with the outer surfaces, the formaldehyde purification effect can be effectively achieved, and therefore indoor formaldehyde can be conveniently removed, staggered nets are arranged in a staggered mode, drying pieces are fixedly installed at the joints of the staggered nets, light balls with the interior made of silica gel are fixedly installed at the outer ends of the drying pieces, under the action of waterproof pieces, the hydrophobic effect can be effectively achieved, water erosion can be effectively prevented, sound absorption pieces are evenly distributed inside ventilation grooves, binding holes are evenly distributed inside the sound absorption pieces, and the sound insulation effect is greatly enhanced.
Owner:温州捷合郸科技有限公司
Silent noise reduction air compressor
InactiveCN112032054AReduce generationReduce sheddingRotary/oscillating piston combinations for elastic fluidsRotary/oscillating piston pump componentsImpellerElectrical control
The invention discloses a silent noise reduction air compressor. The silent noise reduction air compressor comprises a bottom plate, a box body, an electrical control box, a motor, a screw air compressor, a cooling unit, a first noise reduction unit and a second noise reduction unit; a partition plate is arranged inside the box body and divides the interior of the box body into a first cavity anda second cavity, the screw air compressor is located in the first cavity, and the cooling unit is located in the second cavity. the cooling unit comprises a cooling fan and a cylindrical fan cover, and the cooling fan comprises a driving unit, an impeller, a plurality of fan blades and a cylindrical fan cover body; the fan blades are folding fan blades, three penetrating holes located on the samestraight line are formed in the leading edge vortex flow dividing area of each fan blade, and penetrating holes distributed in a rectangular array mode are formed in the trailing edge vortex flow dividing area of each fan blade; and the second noise reduction unit comprises a sound absorption composite plate and a sound absorption shell. Vortex noise is reduced, so that the vibration frequency ofinternal noise is gradually reduced, and the sound absorption effect is achieved.
Owner:江西智奇压缩机有限公司
Anti-vibration and vibration-reduction device for core mold
InactiveCN108481519AEasy to processEasy to operateAuxillary shaping apparatusCeramic shaping coresEngineeringMachining
The invention relates to the field of core mold vibration machining, in particular to an anti-vibration and vibration-reduction device for a core mold. According to the anti-vibration and vibration-reduction device for the core mold, the structure is simple, and noise and vibration are reduced. The anti-vibration and vibration-reduction device comprises a compartment body with the open top and a base. Inlets are formed in the two sides of the compartment body correspondingly, and a rectangular frame body is arranged on the top face of the bottom of the compartment body. A first separation space is formed between the frame body and the inner wall of the compartment body, and the base is located in the frame body. A second separation space is formed between the frame body and the base, and avertically-arranged first vibration-reduction device is arranged on the bottom face of the base. Sound-absorbing cotton is arranged on the inner wall of the compartment body. The anti-vibration and vibration-reduction device is convenient to machine and reliable in operation.
Owner:JIANGSU JIANGYANG BUILDING MATERIAL MACHINERY
Sandwich structure self-adhesive damping foaming adhesive tape for vehicle, preparation method and damping structure
ActiveCN114133893AHigh foaming ratioGood expansion performanceNon-macromolecular adhesive additivesMacromolecular adhesive additivesPolymer scienceAcrylic resin
The invention relates to the field of foaming rubber strips, in particular to a self-adhesive damping foaming rubber strip with a sandwich structure for a vehicle, a preparation method and a damping structure. The invention discloses a self-adhesive damping foaming adhesive tape with a sandwich structure for a vehicle. The self-adhesive damping foaming adhesive tape is prepared from the following components: ethylene propylene diene monomer, an ethylene-vinyl acetate copolymer, an ethylene-acrylate copolymer, acrylic resin, hydrogenated petroleum resin, polyisobutene, mica powder, a foaming agent and a cross-linking agent. The preparation method comprises the following steps: 1) mixing ethylene propylene diene monomer, ethylene-vinyl acetate copolymer, ethylene-acrylate copolymer, acrylic resin, hydrogenated petroleum resin, polyisobutene and mica powder to obtain a rubber intermediate; 2) adding a foaming agent and a cross-linking agent, and mixing to obtain a material to be used; and (3) preparing the to-be-used material into a flaky finished product. The damping structure has the advantages of reducing structural noise and improving the damping effect.
Owner:SHANGHAI YONGGUAN ADHESIVE PROD CORP LTD
Sound-absorbing paint and preparation method thereof
InactiveCN102220057BGood sound absorptionWith heat insulationCoatingsPolymer scienceThermal insulation
The invention relates to a sound-absorbing paint and a preparation method thereof. The sound-absorbing paint is formed by mixing and blending a component A and a component B according to a proper ratio, wherein the component A is prepared by mixing and blending raw materials including 0.1 to 0.5 weight percent of dispersant, 15 to 30 weight percent of sepiolite, 20 to 40 weight percent of acrylicemulsion, 0.5 to 1 weight percent of film-forming assistant, 0.5 to 1 weight percent of preservative and / or thickener and the balance of water, and the weight of all raw materials of the component A is 100 percent; the component B comprises polyphenyl foamed and ground particle raw material; and the weight mixing ratio of the component A to the component B is 1,000:(100-150). The finish has excellent sound-absorbing function and has the advantages of light weight, thermal insulation, elegance and the like. The finish can provide a more quiet and lovely indoor environment for people, so that the life quality can be improved effectively and the life of people can be prolonged.
Owner:上海绿山实业有限公司 +1
Multi-layer composite environmental protection flame retardant sound insulation coiled material products
ActiveCN103158314BLow densityImprove sound insulationSynthetic resin layered productsCompound aFoaming agent
Owner:CHENGDU MACKO MACROMOLECULAR MATERIALS
Damping composite material, shock-absorbing press floor structure and refrigerator
ActiveCN106633640BImprove damping performanceHigh mechanical strengthLighting and heating apparatusDomestic refrigeratorsEpoxyAdhesive
Owner:QINGDAO HAIER SPECIAL ICEBOX
Warehouse sealing door
PendingCN111058733AAchieve openAchieve closureNoise insulation doors/windowsConstruction fastening devicesEngineeringStructural engineering
The invention discloses a warehouse sealing door, which is of a two-way opposite opening form. The warehouse sealing door comprises door leaves and a door lock, wherein the door leaves are installed on a door frame through door shafts; the door lock is arranged on the door leaf on one side; the door leaves are divided into a left door leaf and a right door leaf, wherein the left door leaf and theright door leaf independently comprise a sealing door frame and a door sheet arranged in the sealing door frame; the sealing door frame is of a rectangular structure assembled by four frames; and thedoor lock comprises fixed clips symmetrically fixed on the upper end and the lower end of the door frame, and a locking device arranged on the outer side of one door leaf, wherein the locking device comprises a stop lever vertically arranged on the outer side of one door leaf, clamping hoop heads and a locking mechanism arranged on the stop lever, and the clamping hoop heads are independently arranged on two ends of the stop lever and are cooperated with the fixed clips. The warehouse sealing door disclosed by the invention is good in airtightness and resistance to shock, external water vaporsand dust can be effectively prevented from entering a granary, the sealing door is convenient in an opening and closing operation, door opening and closing efficiency is high, and time and labor aresaved.
Owner:虞城县明强仓储设备有限公司
Preparation method of silencing microporous artistic decorative ceramic tile
The invention provides a preparation method of a silencing microporous artistic decorative ceramic tile, and belongs to the technical field of porous ceramic materials. The preparation method comprises the steps: mixing water, acrylamide, dimethylene acrylamide and a dispersing agent, and adjusting the pH value to obtain a premixed solution; mixing the premixed solution, ceramic powder and a forming additive to obtain mixed slurry; mixing the mixed slurry, an initiator and a foaming agent for polymerization reaction to obtain polymerization product slurry; sequentially carrying out injection molding, demolding and drying on the polymerization product slurry to obtain a green body; and carrying out glue discharging and sintering on the green body, and thus obtaining the silencing microporous artistic decorative ceramic tile. Data of the embodiment show that the average pore diameter of the prepared silencing microporous artistic decorative ceramic tile is 0.01-2.0 mm, the porosity is 60%, the breaking strength and compressive strength are 990 MPa, the fracture toughness is 5-6 MPa*m<3> / 2, the insulation breaking strength is 18 kV / mm, and the Rockwell hardness is 88 HRA.
Owner:福建省德化福杰陶瓷有限公司 +1
A cast-in-place hollow floor with holes formed by combined mesh box-shaped components
Owner:HUNAN BDF ENERGY SAVING TECH
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