To achieve better sound insulation for aluminum alloy doors, you can start from the following aspects:

1. Choose high-quality sealing strips

 Install high-quality sealing strips, such as EPDM rubber strips, at the contact point between the door frame and the door leaf to increase the sealing of the door and reduce the spread of sound.

2. Install soundproof glass

 Replace ordinary glass with soundproof glass, such as hollow glass, laminated glass or vacuum glass. These glasses have good sound insulation performance and can effectively block external sounds.

3. Increase the thickness of the door

 Thicker aluminum alloy doors usually have better sound insulation, and thicker aluminum alloy profiles can be selected to make doors.

4. Fill with sound insulation materials

 Fill the inside of the door with sound insulation materials such as sound insulation cotton and sound-absorbing panels to absorb and block the spread of sound.

5. Improve installation accuracy

 Ensure that the door is installed firmly and flatly, and the door gap is uniform and small to avoid gaps that cause sound leakage.

6. Install door suction and door closer

 Door suction can make the door close more tightly, and the door closer can control the closing speed of the door, reduce the noise when closing the door, and ensure the sealing of the door.

For example, if it is an aluminum alloy door used in the bedroom, you can choose double-layer hollow glass and fill it with sound insulation cotton, and install high-quality sealing strips at the same time, which can significantly improve the sound insulation effect and ensure a quiet sleeping environment.