With the rapid development of human society, people have more and more material and spiritual needs, pursuing an extremely comfortable family environment. Therefore, people purchase high-end stereos and hope to enjoy music at home; Buy a projector and hope to watch movies in bed; Buy a Treadmill and hope you can exercise without going out. People are moving more and more facilities into their homes, which inevitably leads to a significant problem - noise. As a result, foam aluminum sound-absorbing board began to reflect its role.

At present, the common sound absorption and noise reduction materials on the market include polyester fiber, Glass wool, polyurethane foam, foam metal materials, etc. As a cost-effective foam aluminum sound-absorbing panel material, its sound insulation and noise reduction capacity is 7-10 times that of polyurethane foam, glass fiber and honeycomb aluminum. Applied to high-speed trains and car panels, the sound insulation loss is close to 30dB. According to the test data, the sound insulation level of ordinary sound can only be reduced by 5dB, and that of foam aluminum can be reduced by 10-20dB.

With the development of foam aluminum industrialization, foam aluminum has been more and more applied in the fields of highway sound barrier, highway tunnel noise reduction, tunnel and Ventilation shaft, etc. due to its superior sound absorption, noise reduction and related performance. Swimming pool sound-absorbing wall; Interior decoration of entertainment venues; Foam aluminum soundproof floor; Foam aluminum is used to make silencers for trucks, buses and cars. Foam aluminum produces sound absorbing lining, such as recording room, dubbing room, concert hall, conference room, stadium, etc.

The following factors shall be considered when selecting foam aluminum sound-absorbing panel materials:

1. Acoustic environment requirements

If it is necessary to reduce mid to high frequency noise or reduce mid to high frequency reverberation time, sound-absorbing materials with higher mid to high frequency sound absorption coefficients should be selected, such as soft bags, sound-absorbing materials, etc; If it is necessary to reduce low-frequency noise or low-frequency reverberation time, sound-absorbing materials with high low-frequency sound absorption coefficient should be selected, such as perforated sound-absorbing materials such as slotted wood sound-absorbing boards and perforated wood sound-absorbing boards.

2. Building Environmental Requirements

If encountering damp environments, such as swimming pools, ski resorts, underground engineering sites, etc., factors such as waterproofing, moisture-proof, mothproof, mold proof, and germ proof should be considered to avoid changes in material properties that affect the sound absorption effect; Foam aluminum sound-absorbing board

3. Fire retardant performance: Conventional materials have flame retardant, flame retardant, and non combustible performance levels. Cinemas, hotels, and large public places require the use of flame retardant sound-absorbing materials. On the premise of ensuring the safe use of sound-absorbing materials, the sound absorption effect of sound-absorbing materials should be fully utilized.

4. Strength: Sound absorbing materials must meet a certain mechanical strength to maintain structural integrity and durability, and are not prone to aging during transportation, installation, and use, which affects the sound absorption effect;

5. The materials are easy to process, install, and maintain in the later stage. In large-span sports venues, lightweight materials such as low-density sound-absorbing cotton and spatial sound-absorbing bodies are usually used; Foam aluminum sound-absorbing board

6. Safety and environmental protection. Sound absorbing materials in construction and installation projects do not scatter debris and dust, do not volatilize toxic and harmful gases (formaldehyde), do not radiate harmful substances, and do not harm human health. This requires that sound absorbing materials have authoritative product testing reports.

7. In addition to meeting the sound absorption requirements, sound-absorbing materials are also decorative materials, such as cinemas, multifunctional halls, venues, theaters, and other places. The sound-absorbing material used needs to have a decorative effect to meet the aesthetic effect.