Why can car sound insulation cotton sound insulation
The vibration of the object produces sound→ the sound wave is transmitted in the air→ cotton has a multi-fiber structure→ the sound wave passes through the cotton through the reflection, superposition and collision of countless fibers, the sound wave energy is converted into thermal energy→ the sound wave strength weakens → the sound disappears. The more fluffy the structure of cotton, the richer the internal fibers, the better the sound insulation and sound absorption effect; The use of soundproof cotton is very extensive, it has many easy to use characteristics, light weight, easy to change shape, easy installation and so on… Used in auto parts is called “automotive sound insulation cotton”, which is the protagonist of our article – automotive acoustic cotton.
Distribution of car acoustic cotton
The structural composition of the car is very complex, the power system, the transmission system, the suspension system, the interior, the safety system, the control system, etc., the car can achieve a high speed, which determines that in the case of high speed, the body will produce various types of noise, affecting the comfort of driving and riding, how the car sound insulation cotton is reasonably distributed, and these factors are also closely related.
From cockpit filters and seat covers to trunk linings, acoustic felts and carpet fabrics, nonwovens play an important role in the automotive market. Automobiles are also widely used as rubber plate skeleton reinforcement materials, steel ring sheaths made of rubber composites, car steering gear connection rings, sealing strips, and modified rubber composites in fenders and tire pads, as well as in floors. Non-woven fabrics are more and more used in automotive trim, it is necessary to consider the connection between non-woven fabrics and automotive plastic parts, in many welding processes, ultrasonic welding is the best. Because ultrasonic welding is for non-woven fabrics: spot welding efficiency is fast, welding quality is good, no solder aid is required, no burr is easy to form, no pollution and safe.
Features:
1 The whole machine adopts PLC man-machine operation interface, the operation is automated, simple and convenient, and can be produced with semi-automatic telephone.
2 The equipment is equipped with a spiral positioning screw to facilitate the adjustment of the welding position and ensure the accuracy of welding.
3 The whole machine equipment adopts 25mm high-purity steel structure, the equipment is durable, and can be produced in 3 shifts per day.
4 The whole machine equipment is equipped with safety light grid and reset emergency stop button, which is safer to operate
5 The equipment has low welding energy consumption and easy cleaning.
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