147results about How to "Sound insulation" patented technology

The invention discloses a sound insulation cabin of a turbine engine. The sound insulation cabin is arranged on the turbine engine in a sleeving mode, and comprises a cabin body, an intake noise reduction unit and a ventilation noise reduction unit; the intake noise reduction unit and the ventilation noise reduction unit are arranged on the cabin body, and the periphery of the cabin body is filledwith sound insulation materials; and the intake noise reduction unit is used for intake noise reduction of the turbine engine, and the ventilation noise reduction unit is used for noise reduction ofa ventilation system of the turbine engine. The sound insulation cabin has the beneficial effects that the intake noise reduction unit is additionally arranged at an air inlet of the turbine engine, and intake noise reduction of the turbine engine is achieved; the ventilation noise reduction unit is additionally arranged in the transmission direction of the turbine engine, and the ventilation andcooling noise reduction for the turbine engine is achieved; the periphery of the cabin body is filled with the sound insulation materials, and the overall noise reduction for the periphery of the turbine engine is achieved.

The invention discloses a universal health-care board which consists of a middle layer and surface layers arranged on the upper and lower surfaces of the middle layer. The surface layers are non-woven layers comprising 5 percent to 50 percent of low melting point fibers. The middle layer is a non-woven layer which comprises the following components: bastose and 5 percent to 50 percent of low melting point fibers. In the universal health-care board, the content of the bastose is within the range of 5 percent to 65 percent. The invention also discloses a preparation method of the universal health-care board, which comprises the following steps of: respectively preparing the middle layer, the upper surface layer and the lower surface layer; then sequentially paving the layers; and preparing the universal health-care board by processes of processing by an oven, cold milling, cooling, cutting, inspecting and packaging. The universal health-care board disclosed by the invention can be used as a mattress. The problem that the existing mattress is easy to affect with damp, mildew, breed worms and deteriorate, is easy to layer and has poor air permeability is solved.

The invention provides polyacrylic ester interpenetrating network polymer emulsion and highly damped materials, pertaining to the high molecular polymer technological field. The polymer emulsion group consists of protecting adhesive, emulsifier, activator, buffering agent, cross-linking agent, water and monomers, wherein, the monomers comprises butyl acrylate, methacrylic acid, acrylic acid epoxy propyl ester, cinnamene, etc., and polymerize in an interpenetrating network shape. The highly damped materials used for decreasing vibration of vehicles are prepared by the emulsion after addition agent, filing materials and water are added. Since the emulsion of the invention, hollow glass microbeads and talc are used as the important components of the filling materials, the high molecular adhesive and elastic material of the invention has better damped performance, the tenacity and elasticity of the material are enhanced, the intensity of tension, and flexural rigidity resistance and wearing resistance of the material are improved, therefore, the effects of vibration decreasing, noise decreasing, sound and heat insulation can be achieved under various complicated conditions.

The invention relates to a waste-cotton composite automotive carpet comprising a fabric layer, a backing layer and an adhesive layer of the fabric layer and the backing layer. The waste-cotton composite automotive carpet is characterized in that the fabric layer is made of polyester; the adhesive layer is formed by melting polyethylene at a high temperature; the backing layer is formed by mixing mekralon, polyester and waste cotton. The invention adopts a three-layer structure so that the surface style of the product can be kept, and the carpet has shockproof action due to the relatively loose backing layer which forms a porous structure by combing and prickling polypropylene, waste cotton and mixed polyester fiber to take the soundproofing and thermal-insulating effects; polypropylene added to the backing layer is melted at a high temperature to satisfy the molding requirement of the carpet and replace a traditional adhesive (such as acrylic acid); the polyethylene between the fabric layer and the backing layer is melted at a high temperature to take the adhesive, waterproof and crease-resist effects; the backing layer adopts recycled leftovers so as to recycle the original leftovers, lessen the environmental pollution and decrease the cost.

The three-dimensional hollow double sandwiched fabric consists of one upper layer interwoven with two upper ground warp layers and one upper weft yarn layer, and one lower layer interwoven with two lower ground warp layers and one lower weft yarn layer, as well as one middle layer interwoven with two middle ground warp layers and one middle weft yarn layer. The weft yarn layers in the upper layer, the middle layer and the lower layer are also interwoven with the poil warps, so that the upper layer, the middle layer and the lower layer are connected integrally to form one hollow double sandwiched structure. The fabric of the present invention is uses as reinforcing body of composite material, and the composite material with the fabric is light, high in impact strength, high in antiwear performance, high in bending performance and high in rigidity. The double sandwiched structure may be also used in heat insulation, anticorrosion, real-time monitoring, etc.

The invention discloses a composite health care pad, which comprises a middle layer, wherein an upper surface layer and a lower surface layer are respectively arranged on the upper surface and the lower surface of the middle layer, a layer of blocking layer is respectively arranged between the middle layer and the upper surface layer and/or between the middle layer and the lower surface layer. The upper surface layer and the lower surface layer are non-woven layers containing 5%-50% low-melting-point fibers, and the middle layer is a non-woven layer containing the following components: fibrilia and 5%-50% of low-melting-point fibers. The blocking layers are non-woven layers containing 5%-100% of fibrilia, and the content of fibrilia in the composite health care pad ranges from 5% to 65%. The invention further discloses a manufacture method of the composite health care pad, which includes the following steps: respectively manufacturing the middle layer, the upper surface layer, the lower surface layer and the blocking layers, sequentially overlaying all the layers, and carrying out procedures including drying in a drying oven, cold rolling, cooling, cutting, inspection and packing. The composite health care pad and the manufacture method thereof solve the problems that the existing mattress can become damp and mildewed easily, can be damaged by worms, is apt to be layered, and is poor in ventilation and inconvenient to use caused by the fact that hard fibers in the middle of the mattress prick out.

The invention discloses a composite environmental-friendly cushion which comprises a middle layer and upper and lower surface layers. The middle layer comprises a first middle layer, a second middle layer and a bonding layer. The upper and lower surface layers are non-woven layers comprising 5 percent to 50 percent of low melting point fibers. The first and second middle layers are non-woven layers which respectively comprise the following components: bastose and 5 percent to 50 percent of low melting point fibers. The bonding layer mainly consists of the low melting point fibers. In the whole composite environmental-friendly cushion, the content of the bastose is within the range of 5 percent to 65 percent. The invention also discloses a preparation method of the composite environmental-friendly cushion, which comprises the following steps of: respectively preparing the middle layer, the upper and lower surface layer and the bonding layer; then sequentially paving the layers; and preparing the composite environmental-friendly cushion by processes of processing by an oven, cold milling, cooling, cutting, inspecting and packaging. Due to the adoption of the composite environmental-friendly cushion and the preparation method thereof, which are disclosed by the invention, the problem that the existing mattress is easy to affect with damp, mildew, breed worms and deteriorate, is easy to layer and has poor air permeability is solved.

The invention discloses a natural fiber health-care board which consists of a middle layer and a surface layer arranged on the upper surface or the lower surface of the middle layer. The surface layer is a non-woven layer comprising 5 percent to 50 percent of low melting point fibers. The middle layer is a non-woven layer which comprises the following components: bastose and 5 percent to 50 percent of low melting point fibers. In the natural fiber health-care board, the content of the bastose is within the range of 5 percent to 65 percent. The invention also discloses a preparation method of the natural fiber health-care board, which comprises the following steps of: respectively preparing the middle layer and the upper or lower surface layer; then sequentially paving the layers; and preparing the natural fiber health-care board by processes of processing by an oven, cold milling, cooling, cutting, inspecting and packaging. Due to the adoption of the natural fiber health-care board and the preparation method thereof, which are disclosed by the invention, the problem that the existing mattress is easy to affect with damp, mildew, breed worms and deteriorate, is easy to layer and has poor air permeability is solved.

"Integral structure, automatic shock-absorbing building" consists of the overall steel structure frame, interior and exterior decoration of the building, automatic shock-absorbing system, horizontal and vertical linkage levers and structural parts outside the building; it can automatically absorb shocks in a major earthquake, but cannot The destruction and collapse of the overall structure cannot cause casualties and deaths. In the design of the main building, bricks and cement in the current construction industry are not used, and all new building materials in the building materials market are used for decoration. This can solve the problem of construction problems. The heavy manual labor problem that the industry has not solved for thousands of years can be factory-produced and installed at the construction site when the number of buildings is large.

The invention discloses sound insulation cotton, an air-conditioning outdoor unit and a sound insulation structure mounting method. The sound insulation cotton sequentially comprises a porous sound absorbing layer, a sound insulation shock absorption layer and a resonant sound absorbing layer from inside to outside, wherein the porous sound absorbing layer is used for absorbing high-frequency noise and made of open-celled fiber materials, and the resonant sound absorbing layer is used for absorbing middle and low frequency noise and made of closed cell foam materials. By the aid of the porous sound absorbing layer, the sound insulation shock absorption layer and the resonant sound absorbing layer from inside to outside, sound wave energy of various frequency bands emitted by a compressor is absorbed and weakened, noise is effectively reduced, and customer satisfaction is improved.

The invention discloses an environment-friendly outer wall which comprises an inner module, a outer module disposed outside the inner module, fixing columns located at two ends of the outer module, and a cross beam covered on the top of the outer module. By the aid of the inner module, the outer wall is anti-seismic, warm-preserving, heat-insulating, and sound-insulating. The outer module comprises a concrete layer and fixing reinforcing steel bars penetrating the interior of the concrete layer. The fixing reinforcing steel bars increase stability of the outer wall. The outer module is formed by pouring of concrete so that labor amount of wall building is reduced, work efficiency is enhanced, and production cost is lowered. In addition, the inner module is formed by straws through die-casting, so that amount of raw materials is reduced, effective utilization of waste is achieved, and energy conservation and environmental protection are achieved.

The invention provides a combined house plate wall structure comprising long and short flat and straight members and connecting joints. The long and short flat and straight members include external thermal insulation layers and wall body layers. The connecting joints include corner members, T-shaped members and T-shaped members. The long flat and straight members and the short flat and straight members of the connecting joints are combined and connected to form a combined house plate wall. The invention also provides a digital printing production method and installation method of the combined house plate wall structure. For digital printing of building houses, the house plate wall structure is decomposed according to standards and industrial standard production is performed separately, and the damage caused to environments by site construction is reduced to the greatest extent; columnar drum bodies and internally concave spaces reserved in the building components serve as pouring and tamping formworks of columns and beams of building structures, so that the overall strength and rigidity of buildings are guaranteed and the time and expenses for formwork erecting are saved; the installing cost is greatly reduced and the installing time is reduced; the structure and the method represent remarkable technical progress and can bring great economic benefits.

The invention relates to the field of concrete prefabricated part machining, in particular to a concrete prefabricated part machining device and a machining method. The method comprises the followingsteps that 1, concrete is placed on the upper side of a supporting plate, the front and rear sides of the concrete are blocked by two clamping plates, and the concrete is laid at a certain thickness to form a concrete prefabricated part; 2, a plurality of hollow round rods are inserted into the plate-shaped concrete, and the hollow round rods form a plurality of hollow holes in the concrete in anexpanding mode; 3, the plurality of hollow round rods are driven to move along a circular track in the concrete through a motor II, and then the hollow holes in the concrete are expanded; and 4, the plurality of hollow round rods are extracted from the concrete after the plurality of hollow round rods expand the holes, and then the concrete prefabricated part is waited to solidify. The concrete prefabricated part machining device comprises the motor II, a rotating shaft, an inserting shaft, a circumferential rotating rod, a side plate, a cylinder, the hollow round rods, a vertical column, a vertical sleeve, a fixing sleeve and a sliding rail rod.

The invention provides a sound insulation airplane wallboard. The sound insulation airplane wallboard comprises a skin positioned at an outer side, an internal decoration board positioned at an inner side and sound insulation and heat insulation cotton positioned between the skin and the internal decoration board, wherein the sound insulation airplane wallboard also comprises a phonon crystal material layer positioned between the sound insulation and heat insulation cotton and the internal decoration plate. The sound insulation airplane wallboard increases the effective sound absorption thickness of the sound insulation and heat insulation cotton without increasing the weight and space basically in order to improve the integral sound absorption effect of the sound insulation and heat insulation cotton.

The invention discloses an energy-saving wall composite insulating mortar, which comprises the following parts: bulking pearlite, pearlite and active carbon at 3: 1: 2, wherein the bulking pearlite contains pearlite aggregate, pearlite particle and pearlite powder.

The invention relates to a sound insulating and absorbing mat structure of an automobile, at least comprising a waterproof layer positioned at the upper layer and a sound-absorbing layer positioned at the lower layer. The waterproof layer at the upper layer is made of foam materials, and the sound-absorbing layer at the lower layer is made of needle punching cotton with sound-absorbing effect; the waterproof layer can be even additionally provided with materials of blankets and thermoplastic elastomers (TPE); and components of each layer are jointed and formed together by a mould pressing technology. The mat has a plurality of effects of sound insulation, cushion, shock absorption, sound absorption, water resistance, light weight and low manufacture cost.

The invention discloses a processing technology of an air-permeable glass material structure. According to the technology, firstly, the front and back surfaces of the substrate are coated with a graphene coating or an anti-static scratch-resisting functional coating to form function layers on the front and back surfaces of the substrate, wherein the graphene coating is prepared from 20-50 parts oftackifier, 2-15 parts of graphene dispersion solution, 0.01-0.5 part of surfactant and 5-20 parts of deionized water; the function layer is coated with a protective membrane or covered with a protective membrane in a heated mode; punching is conducted on the material surface through adoption of a laser mode or a plasma mode or a needle roller mode or a chemical corrosion mode or a mechanical continuous working mode; slitting, rolling and packaging are conducted, and then the air-permeable glass material structure is prepared by the technology. The processing technology is simple and low in cost, the prepared air-permeable glass material structure is simple, and the problems that due to draught-free indoor air, pathogenic microorganisms are generated and the concentration of harmful gas including formaldehyde, carbon dioxide and the like is high can be solved; ventilation of a sealed space is achieved by opening a window, and meanwhile, the indoor temperature loss can remain at the lowest amount; the air-permeable glass material structure has the good functions of sound insulation, dust prevention, wind prevention, rain prevention, mosquito and pest prevention and collision and falling prevention and can meet the demand for light collection performance.

The invention discloses an electric energy meter capable of preventing electricity larceny. An outer surface of a front end of an electric energy meter main body panel is fixedly connected with an observation window, an outer surface of a front end of the observation window is fixedly connected with a self-cleaning coating, a first fixing piece and a second fixing piece are arranged on the outer surface of the upper end of the electric energy meter main body panel. The interior of the electric energy meter main body panel is fixedly connected with a heat dissipation port, the outer surface ofthe lower end of the electric energy meter main body panel is fixedly connected with a connecting wire protection box with a coded lock, and an outer surface of a front end of the connecting wire protection box with the coded lock is fixedly connected with a box door. The electric energy meter capable of preventing electricity larceny is provided with the connecting wire protection box with the coded lock, the self-cleaning coating and the anti-collision corner protectors, electricity larceny caused by private line refitting of people can be prevented, self-cleaning can be conducted, observation is convenient, the electric energy meter can be better protected, damage caused by collision is prevented, and better use prospects are brought.

The invention discloses a light wall veneer. The light wall veneer comprises a decorative surface layer and a natural fiber reinforced polypropylene plate layer; the decorative surface layer and the natural fiber reinforced polypropylene plate layer are bonded through a moisture curing reaction type polyurethane hot melt adhesive; the natural fiber reinforced polypropylene plate layer is composedof a transition layer, a middle layer and a balance layer, the natural fiber reinforced polypropylene plate layer is formed by: three-dimensionally interweaving 40-60% of natural fiber and 60-40% of polypropylene staple fiber to form a fiber felt, adhering the transition layer and the balance layer to two sides of the fiber felt respectively, and then conducting hot-pressing bonding; wherein the transition layer and the balance layer are polyester non-woven fabrics made of the same material, and the natural fiber reinforced polypropylene plate layer is bonded with the decorative surface layerthrough the transition layer. The natural fiber offcut used in the light wall veneer can be recycled by 100% after being opened, volatile pollutants cannot be generated in the production process, thelight wall veneer is environmentally friendly, and can meet different aesthetic requirements.

The invention relates to an anti-buckling energy consumption steel plate shear wall with a concealed brace. The shear wall comprises an infilled energy consumption steel plate, the concealed brace and a concrete plate. The infilled energy consumption steel plate and the concealed brace are connected into a whole and jointly work, wherein the concealed brace is welded into the position, being applied with large centralized force, of the infilled energy consumption steel plate, and therefore the infilled energy consumption steel plate and the concealed brace jointly resist the large centralized force; an isolating layer is arranged between the infilled energy consumption steel plate and the concrete plate, and therefore the infilled energy consumption steel plate and the concrete plate can relatively move; an isolating layer is arranged at the contact position of the outer surface of the concealed brace and the concrete plate, and therefore the concealed brace and the concrete plate can relatively move; a proper amount of plastic foam is filled into the contact position of the inner surface of the concealed brace and the concrete plate, and therefore the concrete plate can be prevented from being squeezed and damaged in the deformation process. The shear wall has the advantages of high side lurch resistance, good ductility and outstanding energy consumption capacity of an anti-buckling restrained brace and an anti-buckling steel plate wall, and can solve the problem of performance degeneration caused by buckling of edges of a steel plate wall.