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

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 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 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.