Publish Time: 2022-04-29 Origin: Site
If you have ever encountered intrusive noise problems (or have been complaining about your noise from neighbors), then you may be interested in sound insulation technology. Acoustic wall boards are one way to solve this problem.
Here is the content list:
1. What is the working principle of acoustic wall boards?
2. How to classify acoustic wall boards?
Sound is wave-like energy that needs a medium to propagate. When sound propagates in the same medium, the greater the density of the medium, the faster the propagation speed. For example, the propagation speed in the air at room temperature is about 340 m/s, and the propagation speed in the railroad track is about 5200 m/s.
Another kind of sound transmission is to spread across media. That is, from one medium, passing through the critical contact surface of the two mediums and entering another medium, at this time, the transmission of sound energy is essentially the transmission of vibration amplitude. When traveling across media, the greater the difference in density between the two media, the greater the loss of sound energy. In practical applications, the air is the space for human activities under normal conditions, so the material whose density is different from that of air is generally very high-density material (materials with a much lower density than air is not many except for vacuum). It can be regarded as a sound insulation material. The higher the density, the better the sound insulation effect. Plates made of such materials are called acoustic wall boards.
The classification of acoustic wall boards can be classified according to the location of sound insulation, the method of sound insulation, and the sound insulation materials and varieties used.
1. According to the classification of civil engineering, it can be divided into two types: building acoustic wall board and structure acoustic wall board.
2. According to the location of sound insulation, it is roughly divided into two categories: indoor sound acoustic wall board and outdoor acoustic wall board. For example, indoor sound insulation includes: walls, structural surfaces, ceilings, and other features that require sound insulation, building surfaces, underground buildings, and sound insulation are also input to the indoor sound insulation part; the main items of outdoor sound insulation include the sound insulation of open-air walls and other outdoor sound insulation items.
3. According to the method of sound insulation, it can be divided into composite acoustic wall board and self-constructed acoustic wall board. Composite sound insulation wallboard refers to a new sound insulation method that uses various sound insulation materials for sound insulation. The use of sound insulation materials with different performances in sound insulation, using their characteristics, combined use in sound insulation, is playing the advantages of each sound insulation material to improve the overall performance of sound insulation, achieving "rigid and flexible combination, multi-channel sound insulation, comprehensive protection ". The effect of structural self-insulation refers to a sound insulation method that adopts a certain form or method to construct self-insulation or combine to block sound transmission. For example, sound-absorbing cotton, sound-absorbing board, and other materials are used to continuously absorb sound to achieve the transmission path of weakening sound and change the range of sound transmission at the same time.
Acoustic wall board is made of materials with a large difference in density from the air. The greater the density, the better the sound insulation effect. If you want to buy an acoustic wall board to solve the noise problem, I recommend you choose Jiangsu Th-Star Acoustic Material Co., Ltd.