We know that people nowadays are more meticulous in their decoration, mainly because there are many aspects of pollution, such as lamp pollution, water pollution, air pollution, noise pollution, etc. Speaking of noise pollution, many people are in the renovation The sound-absorbing material will be selected to reduce the pollution. The following Xiao Bian will introduce to you the sound absorption material and what is the main function of the sound-absorbing material. What are the sound absorption materials 1, porous sound-absorbing material : mineral wool, glass wool, felt, wood wool sound absorption board and other porous materials, this material is also a good high-frequency absorption, but also in the back of the air layer, but also absorb low frequency. 2. Resonance sound-absorbing structure of perforated plate: Perforated plywood, perforated fiber cement board, perforated gypsum board, perforated metal plate, etc. Generally absorb intermediate frequency, combined with porous material to absorb medium and high frequency, most importantly, it can be absorbed by large cavity behind it. Low frequency. 3, film sound-absorbing structure: plastic film, canvas, artificial leather and other film is an intermediate frequency sound-absorbing material , the film and its behind the cavity structure of the sound-absorbing film structure can absorb low-IF. 4. Space absorbers: The space absorbers made of sound-absorbing materials in various shapes are hung in the air. Since the sound-absorbing area is much larger than the projection area, it can be said that the sound absorption coefficient is based on the projected area. Can be greater than 1. The sound absorber is suspended at a position where the sound energy density is high (for example, near the sound source and where the reflection is focused) has a good sound absorption effect. 5. Curtain: Textiles with air permeability function as curtains, and they are installed at a certain distance from the wall or window hole. As the porous material is provided with an air layer behind it, it can be said that there is a certain sound absorption effect on medium and high frequencies. What is the main role of sound-absorbing materials? 1. Control the reverberation time of auditorium sound quality, such as concert halls, theaters, recording studios, studios, auditoriums, conference rooms, multi-function halls, gymnasiums, auditoriums, etc. Generally speaking, this will be selected during the layout. Suitable sound absorption material to achieve the best reverberation time. 2. For some public transportation buildings, such as some airport terminal halls, station waiting rooms, dock waiting rooms and other buildings. Due to the constant broadcast of information on the departure, arrival, or delay of planes, trains, and trains. In general, sound-absorbing panel materials are suitably arranged like ceilings and walls. On the one hand, it can improve the clarity of broadcast information; on the other hand, it can also reduce passengers' noisy noise, which can make the environment more quiet. 3. Eliminate sound quality defects such as echo and sound focus in the hall. When the sound path difference between the direct sound and the reflected sound reaches 17m, the time difference between the two sounds reaches 50ms. The human ear can hear the echo. Some longer halls, and the reflection of the back wall is easy to approach the mouth of the station. The seating area produces echoes. It can be eliminated by placing a strong sound-absorbing panel material on the back wall. The building's arc-shaped rear wall and dome-shaped roof, etc., such a design will also make the hall focus. If you want to maintain the original indoor trapezoid, you can use the method of placing strong sound-absorbing materials on these inner surfaces to eliminate the focus on the hall. 4. Improve the sound insulation of light and thin walls. Such as gypsum board, calcium silicate board, FC board, TK board, and fireproof magnesium cement board, etc., can be filled with porous sound-absorbing materials such as glass wool, rock wool and mineral wool in the interlayer, which can improve This kind of wall sound insulation effect. Summary: What about the sound-absorbing material and the primary role of sound-absorbing material is what content on the introduction to this, the kind of sound-absorbing material, or more, when you choose depends on what you are using in that place, different areas of the use of material or There are some differences. Bluetooth Light,Light Bluetooth Indoor,Portable Bluetooth Light,Lights Night Bluetooth Shenzhen You&My Electronic Technology Co., Ltd , https://www.szyoumy.com
