31results about How to "With sound-absorbing function" patented technology

The invented water permeable ceramic brick is made from (wt.%) waste wall floor brick 70-90, feldspar powder 8-20, cellulose 1-5, wood dust 1-5, which are ground, sieved and mixed with proper amount of water, then make blank, dry, sintered at 1100-1300 deg.C for 100-140 min., cooling to form water permeable ceramic brick. Advantages: high water permeability, high respiratory performance, high abrasive resistance etc.

The invention provides an external formwork for a building assembly type steel structure building, which includes a first wall panel, a reinforcement frame is fixed on one side of the first wall panel, and a second wall panel is fixed on the side of the reinforcement frame away from the first wall panel. As for the wall panels, the first wall panel and the second wall panel are provided with connecting grooves on both sides away from the reinforcing frame, wherein a splicing plate is arranged inside the connecting grooves. In the prefabricated steel structure building external formwork, when pouring concrete, the vibrating rod penetrates through the vibrating rod socket and the communication port and enters between the first wall panel and the second wall panel, and then between the first wall panel and the second wall panel When filling concrete, the vibrating rod vibrates at the same time, and the vibrating rod drives the concrete to flow, so that the concrete is densely combined. Through multiple vibrating rod sockets, the vibrating rod can be inserted between the first wallboard and the second wallboard of different levels. The air bubbles in the concrete can be discharged, which can effectively improve the strength of the concrete.

The invention discloses a light-weight engine mount for reducing vibration and noise absorption, which comprises a casing and an inner core located in the casing. The lower plate body is respectively connected with the inner top surface and the inner bottom surface of the shell, and the upper plate body includes a first layer plate, a first sandwich layer and a second layer plate connected in sequence from top to bottom, and the first sandwich layer is in the form of a first layer. Honeycomb shape, its longitudinal section is formed by connecting multiple rows of regular hexagons in sequence from top to bottom, each regular hexagon is provided with a circle connected to the three diagonals of the regular hexagon, and each regular six The diameter of the circle in the polygon gradually increases from top to bottom. When the engine is at idle speed and the vibration amplitude is large, the upper plate body can produce a large damping effect to absorb the vibration generated by the engine, and has a gradient to absorb the vibration. function. In order to overcome the problem that traditional rubber can only provide a small damping effect, it has a better vibration reduction effect.

A bonded plate, which has excellent sound-absorbing, vibration-damping, and processability. The bonded plate includes a surface plate, a backing plate backing the surface plate, and an adhesive resin interposed between the surface plate and the backing plate and bonding the surface plate and the backing plate with each other, wherein the adhesive resin has a thickness from about 0.02 mm to about 0.1 mm. Thereby, the adhesive resin layer of the bonded plate can have sound-absorbing and vibration-damping functions. Further, the bonded plate can remarkably reduce the cost of production and can secure formability equal to that of the conventional steel plate.

The invention discloses a production process of sound-absorbing wood-plastic panels, which comprises the following steps: 1) wood-plastic material formula; 2) filler treatment; 3) wood flour mixing treatment; 4) injection molding raw material processing; 5) cooling; 6) Extruder for one extrusion; 7) Extruder for secondary extrusion; 8) Cooling down; the production process is simple, high feasibility, the quality of the produced wood-plastic board is high, the service life is long, and it has good sound absorption The effect can be widely used in the construction industry.

The invention discloses a suspended ceiling with sound-absorbing function, which includes a fixing piece, a pull rod, a guide block and a decorative top plate, the fixing piece is fixedly connected to the lower part of the building floor through expansion screws, and the lower bearing of the adjusting bolt is connected with a pull rod, The inner side of the hanger is provided with a bearing keel, the outer side of the auxiliary keel is sleeved with a second connecting block, the inside of the base plate is provided with a first gypsum board, and the bottom of the suction cotton is provided with a sound insulation board. The inside of the base plate is embedded with a mounting seat, the outer side of the movable column is fixedly connected with a first limiting block, the outer side of the movable column is covered with a second limiting block, and the upper bolt of the decorative top plate is provided with a mounting block, And the outer side of the mounting block is provided with a clamping block. The suspended ceiling with sound-absorbing function can effectively improve the sound-absorbing and noise-reducing effect of the suspended ceiling, can conveniently complete the construction of the keel and adjust the height of the suspended ceiling, and at the same time facilitate the disassembly and replacement of the decorative ceiling in the later stage.