Several methods of four-door sound insulation-Xi Andi car stereo

1, the four-door sound insulation inner layer is pasted with a layer of cotton after the shockproof plate is pasted, which is more sealed and sound-proof, and forms a better sound box effect. (The reason is that the material and technology of the soundproof cotton basically won't get water, and the soundproof cotton surface can reflect all kinds of audio, which is easy to form a speaker effect. ) 2. The four-door sound insulation inner layer does not need sound insulation cotton to prevent the hidden water from rusting and mildew. (The reason is that the sound-proof cotton really hides water, which can't be completely solved technically. The shockproof plate has formed a good sealing and speaker effect. ) 3. The whole shockproof plate is attached, and the butyl base of the shockproof plate plays a shockproof role, so that an earthquake will never occur, and the sealing performance of the whole block is better. (Reason: The T-shaped base of the shockproof plate reaches 2MM, which is shockproof design and the whole block has the best sealing performance. Foreign brands are all sealed, some of them are suspected of cheating, and the theoretical support is insufficient. The factory also stopped shaking at key parts, for cost reasons, but the poor effect is the best proof. ) 4. The material is special, and the strip-shaped anti-vibration plates are attached separately, which produces different frequencies, which is more conducive to sound insulation, no shock and better sound effect. (The reason is that after testing, the effect is better. )

5. It is better to use a large shockproof plate for the four-door sound insulation outer layer! 6. The four-door sound insulation outer layer does not need a whole piece, and all gaps are sealed with small pieces after trimming, which has better effect and is easy to disassemble and maintain. My personal suggestion is to stick a double-layer shock absorber, and then stick a sound-insulating cotton (also called sound-absorbing king) in the door panel shell. The first layer of shock absorber strengthens the sheet metal of the door, thus reducing vibration and noise. The second layer seals the hole of the door panel to prevent noise from entering the car from the hole, and then sticks a sound-absorbing king in the door panel shell to absorb residual noise and create a quiet and comfortable driving environment. As far as domestic sound insulation materials are concerned, high-energy products are relatively good. It is a healthy and pollution-free sound insulation material certified by the European Union.