31results about How to "Good sound insulation and shock absorption" patented technology

The invention discloses a sound insulation and vibration reduction floor which is characterized by comprising a decoration panel layer, a vibration reduction and sound absorption material layer and a first sound absorption and vibration reduction film layer arranged between the decoration panel layer and a rubber layer, wherein a second sound absorption and vibration reduction film layer is arranged below the vibration reduction and sound absorption material layer, and the decoration panel layer, the first sound absorption and vibration reduction film layer, the vibration reduction and sound absorption material layer and the second sound absorption and vibration reduction film layer are bonded into a whole through an adhesive. The sound insulation and vibration reduction floor has good sound insulation and vibration reduction effects, and is particularly suitable for being used in multi-story buildings.

The invention discloses a production method of a fireproof antitheft door. The production method comprises the following steps: shearing plates, embossing, punching, bending, acid-pickling, producing a door plate, spraying plastics, transferring, assembling and the like. The production method is simple and low in cost, the produced antitheft door can achieve the fireproof antitheft purposes, the heat-insulating, moisture regain, warpping and deformation problems can be overcome, and the produced antitheft door has good soundproof and damping elasticity, as well as properties of being heat-insulating, flame-retardant, and strong in anti-deformation capability.

The invention provides a building ground lightweight dry mixed material, and a preparation and an application method thereof. The building ground lightweight dry mixed material comprises aggregates and powder, the aggregates are polystyrene foam particles, and the powder comprises cement, and also comprises one or more of sands, a mineral admixture and an additive. The building ground lightweight dry mixed material has the advantages of simple components, easily available raw materials, and light weight. The building ground lightweight dry mixed material can be used to construct ground cushions or ground slope making layers, and the obtained ground cushions or ground slope making layers have the advantages of light weight, shock resistance, heat insulation, sound insulation and stability.

The invention discloses high-strength edge folding glue which comprises the following components in mass percent: 22-27 percent of bisphenol-A epoxy resin, 16-20 percent of nitrile carboxylic rubber modified epoxy resin, 11-14 percent of PU, 4-5 percent of dicyandiamide, 0.8-1.1 percent of a low-temperature promoter, 1.5-2 percent of fumed silica, 8-10 percent of ground calcium carbonate, 8-10 percent of wollastonite, 10-13 percent of barium sulfate, 3-3.3 percent of glass beads, 0.3-0.5 percent of carbon black, 2.2-2.8 percent of calcium oxide, 0.1-0.15 percent of a coupling reagent and 4-5 percent of a diluent. According to the technical scheme disclosed by the invention, from the aspects of the bonding performance of the high-strength edge folding glue with a steel plate and the improvement on the strength of cured products, the effects of facilitating the painting on the steel plate, insulating sound, absorbing shock and effectively enhancing the strength are achieved.

The invention discloses a centrifugal machine for teaching experiments. The centrifugal machine comprises an outer shell. The inner bottom of the outer shell is provided with a first motor. The motor is provided with a container which can store solid particles or liquids and mixture of the liquids. The upper surface of the outer shell is provided with a cover. The centrifugal machine is characterized in that a fast clamping connecting mechanism which can enable the cover to be fast installed on the outer shell is arranged between the cover and the outer shell. The centrifugal machine is simple in operation, small in size and convenient to carry, experiments can be directly conducted in the teaching process, the centrifugal machine is not used in a laboratory, through the fast clamping connecting mechanism, the cover can be fast installed on the outer shell, the leakproofness is good, installing is convenient, the sound insulation and damping effects are good, and the liquids can not be spilt in the using process.

The invention relates to a vacuum shock-absorbing plate for absorbing range-hood smoke, and a range hood bellows employing the same, and the vacuum shock-absorbing plate and the range hood bellows are used in a kitchen range hood. The vacuum shock-absorbing plate of the range hood is characterized by comprising an interior plate, a support member and an exterior plate; the shock-absorbing plate with an interval space is formed by mutual encapsulating of the interior plate and the exterior plate; the interval space between the interior plate and the exterior plate forms a sealed vacuum chamber; and support members are disposed between the interior plate and the exterior plate for supporting. The vacuum shock-absorbing plate can be used as a sound-insulating shock-absorbing plate; the vacuum shock-absorbing plate helps to effectively reduce vibration and noise of the bellows when applied to the range hood bellows; and also the vacuum shock-absorbing plate has the advantages of simple structure, good sound insulation and shock absorption effects, long service life and the like.

The invention discloses a liquid sound-proof coating, which comprises, by weight percentage: acrylic acid emulsion: 10-20%, emulsified asphalt: 10-20%, rubber powder 20 mesh: 30-50%, polystyrene particles: 5-15% %, thickener: 0.1‑0.5%, crosslinking agent: 0.1‑0.3%, water: 2‑20%, the acrylic emulsion contains 50% solid, Tg:‑20 degrees, has good water resistance and cement phase Compatible emulsion; the emulsified asphalt is an emulsified asphalt using anion and non-ion as emulsifiers, forming a matching compatibility with the acrylic emulsion. The material and material components of the invention are easy to obtain, low in cost, convenient in construction, can form a flexible sound insulation pad with multiple tiny cavities, can effectively reduce impact force, and have good sound insulation durability.

The invention discloses a double-layer steel plate reinforcing adhesive which consists of an upper-layer steel plate reinforcing adhesive and a lower-layer steel plate reinforcing adhesive. The double-layer steel plate reinforcing adhesive is particularly coated on fragile parts of a steel plate of an automobile body, and has the functions of insulating sound, damping and reinforcing the strength of the steel plate. According to the technical scheme of the invention, from the view of improving the adhesion property, the shrinkage of a cured product and the like, the effects of coating the steel plate, insulating the sound, damping and effectively improving the strength of the steel plate are achieved.

The invention discloses a centrifugal device with a good using effect. The centrifugal machine comprises a shell. The internal bottom of the shell is provided with a first motor. A container capable of containing a mixture of solid particles or liquid and liquid is arranged on the motor. The upper surface of the shell is provided with a cover. The centrifugal machine is characterized in that a quick clamping and connecting mechanism capable of allowing the cover to be mounted on the shell quickly is arranged between the cover and the shell. The centrifugal machine is easy to operate, small in size and convenient to carry, can be used for conducting experiments directly in the teaching process without being used in a laboratory. The cover can be quickly mounted on the shell through the quick clamping and connecting mechanism. The centrifugal machine is good in sealing performance, easy to mount and good in sound insulation and shock absorption effect, and liquid cannot be spilt out in the using process.

The invention discloses a sound-insulating and shock-absorbing floor slab, which relates to the technical field of prefabricated components and aims to solve the technical problem of poor shock-absorbing effect. The movable plate is inserted into the accommodating hole, a rubber pad is arranged between the bottom wall of the movable plate and the bottom of the accommodating hole, and the top wall and bottom wall of the rubber pad are respectively connected with the bottom wall of the movable plate and the bottom of the accommodating hole. In contact with each other, the sound insulation cotton is located inside the fixing plate and below the accommodating hole. The rubber pad is used to support the movable plate, so that the vibration of the movable plate can be absorbed by the rubber pad to a certain extent, and then the vibration is significantly weakened in the process of transmitting the vibration from the rubber pad to the fixed plate, thus realizing the body shock absorption.

The invention relates to the technical field of environmentally friendly new materials, and specifically discloses a preparation method of foamed polyolefin beads, including the following steps: adding polyolefin resin and additives to a high-speed mixer, stirring and mixing evenly, and passing through a screw extruder , to obtain uniformly mixed polyolefin resin particles; using supercritical CO 2 As a foaming agent, add polyolefin resin particles into the foaming tank, add water and dispersant at the same time, and then heat and pressurize the reactor to obtain primary foamed polyolefin beads; inject primary foamed polyolefin beads into the carrier Pressurize the tank, and pass compressed air into the tank, and after the pressure loading is completed, inject the primary expanded polyolefin beads into the foaming machine to obtain the expanded polyolefin beads. The invention also discloses the foamed polyolefin plate and its application. The foamed polyolefin beads and foamed polyolefin boards prepared by the preparation method of the present invention have excellent shock absorption and sound insulation properties, and are widely used in thermal insulation and sound insulation systems of building floors.

A making method of crop straw particle board of low density without formaldehyde includes crushing, taking materials and weighting by balance, paving, stirring of spray glue, prepressing and hot-pressing of the crop straw, characterized in that: the crop straw should crush to particle state of less than or equal to 4.75mm, after calculating weight of straw particle with density of 250-400kg / m3 based on thickness of board and once machining area of apparatus, taking materials by weight of following components, the hot-pressing temperature is 130-180 DEG C, through two times of increasing and reducing press hot set from high to low, at first time the press is increased to 90-110 bar during 10 seconds, keeping for 25 seconds, then the press is reduced to 40-60 bar, then second increasing press to 80-100 bar, keeping for 30 seconds, then three times of reducing press by speed of 1-3 bar / second, at last stabilizing the press in 10-20 bar, keeping for 10 seconds. The invention settles technological problem of hot-pressing mode and material compositions of artificial plate with production density less than 400kg / m3, secondly settles technological problem of spray glue.

The invention relates to the technical field of felt manufacturing process, in particular to a technology for manufacturing equal-density and unequal-thickness felt. The technology includes the first step of primary forming, wherein a primary forming mould and a shaping mould are manufactured according to the shape of an automobile floor, raw materials for manufacturing the felt are evenly mixed, then the evenly mixed raw materials are sprayed onto the primary forming mould, vacuum adsorption holes are formed in the primary forming mould, the raw materials are arranged on the primary forming mould through vacuum adsorption, high-temperature steam is introduced into the primary forming mould, the raw materials are softened under the action of high-temperature steam, the primary forming mould is assembled, and the softened raw materials are primarily formed into felt in a required shape; the second step of shaping. The primary forming mould and the shaping mould are manufactured according to the shape of the automobile floor, and the formed felt is equal in density and unequal in thickness, is perfectly attached to the corresponding automobile floor, and is flat and smooth in surface and excellent in sound isolation and shock absorption performance; smell meets the standards, the whole process is high in automation degree, and work efficiency is greatly improved.

The invention discloses a turnout junction explosion hardening device which comprises an explosion tank, wherein the explosion tank is a sealed explosion tank; an explosion platform for placing a turnout junction is arranged in the sealed explosion tank; the turnout junction is placed or fixed onto the explosion platform in the sealed explosion tank for detonating; a sealing door capable of opening and closing is arranged on the tank body of the explosion tank; a sealed buffer cavity which is connected with the tank body is arranged outside the sealing door; and a buffer door which is aligned to the sealing door is arranged on the cavity wall of the buffer cavity. According to the turnout junction explosion hardening device, the sealed explosion tank body is used to prevent dust dispersion and waste gas pollution; the sealing door is arranged on the tank body, and the buffer cavity is arranged outside the sealing door, so that vibration impact and noises are reduced in a facilitated mode; a cantilever trolley is arranged outside the explosion tank, and the cantilever trolley is provided with a double-lifting trolley, so that the turnout junction explosion hardening device can be regulated according to turnout junctions of different dimensions, and is flexible and convenient; a gas inlet valve and a gas vent vale are arranged on the explosion tank for exhausting waste gas and dust out of the explosion tank, so that the waste gas and the dust can be conveniently collected for being processed in a centralized mode. The turnout junction explosion hardening device is obvious in sound-proof and damping effect, and is small in influence on the external environment.

The invention discloses a sound insulation and heat preservation structure for walls. The sound insulation and heat preservation structure comprises a putty layer, a sound insulation cotton layer, a silica gel layer, a gypsum layer and a fireproof acoustic panel, wherein the putty layer is coated on the surface of a cement wall; the sound insulation cotton layer is arranged on the surface of the putty layer; the silica gel layer is arranged on the surface of the sound insulation cotton layer; the gypsum layer is arranged on the surface of the silica gel layer; the fireproof acoustic panel is laid on the surface of the gypsum layer; a plurality of through holes are formed in the gypsum layer; hole grooves are formed in one side, which faces the gypsum layer, of the fireproof acoustic panel;the through holes are aligned at the hole grooves; and the through holes and the hole grooves are filled with vibration-absorptive materials. The sound insulation and heat preservation structure forwalls, disclosed by the invention, has excellent sound insulation and shock absorption effects, has a smaller thickness compared with the conventional sound insulation structure, is small in occupiedspace area, meets service requirements of customers, improves the living quality and has certain fire prevention and heat insulation effects.

The invention belongs to the technical field of automobile glass, and discloses an intelligent automobile glass. The intelligent automobile glass comprises a first laminated glass layer, a hollow layer and a second laminated glass layer, the hollow layer is composed of a cavity formed by the first laminated glass layer, a spacer and the second laminated glass layer and gas filled in the cavity, and the spacer, the first laminated glass layer and the second laminated glass layer are bonded and sealed through sealant; a transparent graphene electrothermal film is arranged on the side surface, close to the hollow layer, of the first laminated glass layer; and a photochromic film is arranged on the upper portion of the face, close to the hollow layer, of the second laminated glass layer, and an antireflection film is arranged on the lower portion of the other face of the second laminated glass layer. The automobile glass has good visible light permeability, heat insulation, sound insulation, noise reduction and anti-condensation performance, can intelligently adjust light rays and perform electric heating defrosting, is safe and energy-saving, effectively prevents glass reflection virtual images, is particularly suitable for new energy automobile front windshields, and has wide market prospects.

The invention discloses a buckle plate. The buckle plate comprises base plates which are arranged at intervals and a plurality of separation plates which are inclined or perpendicular to the base plates and protrude out of the outer sides of the base plates, wherein the separation plates and the base plates define a plurality of separated cavities, the parts, protruding out the same side of the base plates, of the separation plates form separation grooves, and two ends of each separation plate are respectively provided with a connection toothed plate which is inclined or vertical to the separation plate and protrudes out of two sides of the separation plate. The invention also discloses a sound insulation and heat insulation structure utilizing the buckle plate for a building. The sound insulation and heat insulation structure utilizing the buckle plate for the building comprises a concrete layer, a plastering layer and the integrally molded buckle plate which is arranged between the concrete layer and the plastering layer, wherein the separation grooves of the buckle plate are respectively filled with concrete and plasterer. The buckle plate is simple in structure and can enable a floor slab to achieve better soundproof and heat insulating effects after being applied to the building. The sound insulation and heat insulation structure utilizing the buckle plate for the building is good in sound insulation and heat insulation effect; the concrete layer is closely connected with the plastering layer by virtue of the mechanical occlusion effect of the buckle plate.

The invention discloses a preparation method of a building sound insulation material. The preparation method comprises the following steps of preparing a honeycomb-shaped base plate; pouring foaming materials into small holes in the base plate; grinding the foaming materials on the surface of the base plate; smearing gel on the two faces of the base plate; adhering two elastic bodies to the surface of the gel; and sequentially binding sound absorption layers, cellucotton layers and outer base layers to the surfaces of the elastic bodies through adhesives. According to the method, by arrangingthe honeycomb-shaped base plate, the foaming materials, the two elastic bodies, the sound absorption layers, the cellucotton layers and the like, the good sound insulation and shock absorption effectscan be achieved.

The invention relates to the field of construction, in particular to a floor installation device. The floor installation device and installation method can perform very simple and easy maintenance and replacement operations on all pipelines anytime and anywhere under the premise of satisfying safe and beautiful use. Because it is a raised floor, the overhead layer between the floor and the floor has the same good sound insulation and shock absorption effect as the cushion, but it is much lighter than the cushion, which is helpful for reducing the size of the column and beam foundation and reducing the construction cost. Certain help, at the same time, the overhead space can also be used for storage space, which improves the utilization efficiency. Due to the use of the floor support seat and floor support matched with the floor bottom module, the installation of the floor installation device is extremely convenient. The cross protrusions on the floor tray make the floor laid on it directly snap into place and leave a temperature expansion joint, which greatly shortens the installation time. construction cycle.