[Construction model] Benz S350
[Construction material] Damping pad2.5mm / High gravity damping 3mm / Low frequency king sound insulation / Sound insulation pad 6mm / Sound-absorbing cotton / Polyurethane sound absorbing blanket 15mm
[Construction site] four-door / chassis / trunk / wheel
four-door soundproofing
The door sheet metal is one of the weakest positions in the whole car sheet metal. In the process of vehicle driving, as the speed increases, the wind noise is transmitted to the cockpit through the door crack, sheet metal vibration, etc., the faster the speed, the greater the wind noise.
Damping pad2.5mm and High gravity damping 3mm are used to reduce the vibration of the door sheet metal, which effectively enhances the strength of the door sheet metal, inhibits the vibration of the sheet metal, and greatly reduces the noise transmission caused by vibration.
chassis soundproofing
Chassis noise is mainly from road noise, exhaust pipe noise and other low-frequency noise transmitted to the cockpit through the chassis sheet metal; Low frequency noise is more harmful to human health and easy to cause driving fatigue.
Damping pad2.5mm and High gravity damping 3mm are used for thickening and thickening, which can effectively suppress the vibration of the chassis sheet metal.
Low frequency king sound insulation -Low frequency king sound insulation is used for the front and front seat of the chassis to prevent low-frequency noise and reduce the sound of low-frequency noise on the human body.
The chassis is soundproofed, and the ound insulation pad 6mm is fully pasted to effectively block the transmission of low-frequency noise to the cockpit, and effectively block the intrusion of external heat.
trunk soundproofing
The rear tail box is a large cavity structure, and it is also the location where the rear tire noise and resonance noise are concentrated. In addition to the low and medium frequencies of the car floor sheet metal, the sound has the characteristics of reflection superposition amplification in the cavity.
Damping, sound absorption and sound insulation of the tail box. The first layer adopts damping pad2.5mm and High gravity damping 3mm to carry out thick-thin matching and block full paste process for construction. The second layer adopts Sound insulation pad 6mm and Polyurethane sound absorbing blanket 15mm for sound insulation and sound absorption. The combination of vibration reduction, sound insulation and sound absorption can effectively block the transmission of tire noise to the rear trunk, reduce the resonance noise, and effectively increase the sound pressure value of the sound.
Damping of the tail door adopts Damping pad2.5mm to reduce the vibration of the sheet metal, reducing noise transmission caused by vibration.
