A kind of honeycomb sound-absorbing panel and its production process

Abstract

The invention discloses a honeycomb sound-absorbing panel and a production process thereof, which comprises a three-layer structure, the middle layer is a hexagonal honeycomb core, the upper surface of the hexagonal honeycomb core is provided with a supporting sheet; The invention fills the hexagonal honeycomb cavity with sound-absorbing materials such as filling the hexagonal honeycomb cavity, and the sound wave passes through the microporous aluminum plate and is absorbed by the sound-absorbing material in the hexagonal honeycomb core to achieve the sound-absorbing effect, and can be used for sound-absorbing ceilings and walls in public places. Such as the ceilings and walls of airport waiting halls, stadiums, conference halls and other places, the noise reduction coefficient is high, which can reach more than 0.8, and it can be used as a large-area wide-slab ceiling. It is beautiful, light in weight and no deformation.

Description

technical field [0001] The invention relates to a sound-absorbing panel and its production process, in particular to a honeycomb sound-absorbing panel and its production process, belonging to the field of building materials. Background technique [0002] Building decoration, especially when some large and medium-sized auditoriums, advanced classrooms, and movie theaters are built, sound-absorbing layers must be installed on the inner walls and ceilings of the buildings to minimize indoor noise and improve their environmental quality. Interior decoration designers often use ordinary glass fiber wool board or rock wool board as the most basic raw material. After the above material is made, the fiber direction is horizontal. It cannot bear a lot of pressure and is easy to deform. Although it can be used directly in engineering, However, it affects the quality and appearance of the project. It cannot be directly decorated and needs to nail a wooden frame or install a metal frame...

AI Technical Summary

Problems solved by technology

Interior decoration designers often use ordinary glass fiber wool board or rock wool board as the most basic raw material. After the above material is made, the fiber direction is horizontal. It cannot bear a lot of pressure and is easy to deform. Although it can be used directly in engineering, However, it affects the quality and appearance of the project. It cannot be directly decorated and needs to nail a wooden frame or install a metal frame on the wall, and then fill the space in the frame with glass fiber cotton board or other sound-absorbing materials. The surface is drilled. A number of small holes in the board, or a metal structure with sound-absorbing holes closed; in addition, there is also a method of using a wooden board as the bottom board, filling it with sponge, wrapping it with a decorative cloth, making a prefabricated part, and inlaying it on the wall to make a sound-absorbing board.

The above method of sound absorption and noise reduction has the following disadvantages: the former adopts the filling method to implement sound absorption and noise reduction, and its sound absorption effect is limited by the perforation rate of the panel, so it is difficult to achieve a good sound absorption effect; To achieve a better sound-absorbing and noise-reducing effect, a larger thickness is required, because the thickness of the entire sound-absorbing pole increases, so it is necessary to relatively increase the thickness and strength of the frame on which it is laid, which further increases the cost; Under the impact of high impact and self-weight, the material will sink, forming a cavity in the frame, affecting the sound absorption effect, and the construction cost is high, the construction period is long, and the efficiency is low

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