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What material are soundproof doors made of? Why can it be soundproofed?

Acoustic doors are a type of door used to reduce noise transmission and provide sound insulation. With the increase of noise pollution in modern life, the demand for soundproof doors is also increasing. So, what material is the soundproof door made of?

The sound insulation effect of an acoustic door depends on the structure of the door and the materials used. First of all, soundproof doors are usually designed with a multi-layer structure, in which the interlayer material plays an important role in sound insulation. Sandwich material is a material with sound-absorbing and sound-insulating properties, which can effectively absorb noise and prevent its transmission.

Common sandwich materials include:

1. Density board: Density board is a board made of fiberboard material with high density and weight. This material can effectively block the transmission of noise and provide good sound insulation.

2. Audio glass: Audio glass is a special glass material with high density and sound absorption. It can effectively absorb noise and has good sound insulation effect. Audio glass is widely used in soundproof doors.

3. Audio insulation wool: Audio insulation wool is a soft material that is usually used to fill the interlayer space of soundproof doors. It has excellent sound absorption performance, which can effectively absorb noise and reduce transmission.

In addition to sandwich materials, soundproof doors also use other materials to enhance the sound insulation effect.

The following are common reinforcement materials:

1. High-density polymer edge banding: The edges of acoustic doors are usually sealed with high-density polymer edge banding. This edge banding can effectively prevent noise from leaking out of the door gap, providing better sound insulation.

2. Lead plate: Lead plate is used as a reinforcing material in some soundproof doors with special requirements. Lead has high density and good sound absorption properties, which can effectively absorb and block noise.

3. Sealant strips: Sealant strips are used to fill gaps in soundproof doors to further improve sound insulation. This sealant is usually made of a soft, abrasion-resistant material such as rubber or silicone. It can fill the gap in the door and prevent the transmission of noise through the gap, thus enhancing the sound insulation effect.

In addition to the above materials, the production of soundproof doors also needs to consider other factors, such as the structural design of the door frame and door leaf. Door frames are usually made of metal or solid wood to provide firm support and seal. For the door leaf, choose the appropriate material and structure according to the sound insulation requirements, such as solid wood door leaf, steel plate door leaf or composite material door leaf.

In the process of making soundproof doors, attention should be paid to the selection and combination of materials in order to achieve the best soundproof effect. Manufacturers usually customize the door according to the purpose of the door and the needs of customers, and select appropriate materials and processes to meet the sound insulation requirements.



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